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Karasneh, Abed Al-Fatah A. "An integrated model of knowledge management systems." Thesis, University of Exeter, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246392.
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Leclerc, Chantale Marie fd1970. "Process evaluation of an integrated model of discharge planning." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0010/MQ40831.pdf.
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Thomas, Linda M. "An integrated model for facilities management : indoor environment evaluation." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/23466.
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Sokolov, Andrei P., C. Adam Schlosser, Stephanie Dutkiewicz, Sergey Paltsev, David W. Kicklighter, Henry D. Jacoby, Ronald G. Prinn, et al. "MIT Integrated Global System Model (IGSM) Version 2: Model Description and Baseline Evaluation." MIT Joint Program on the Science and Policy of Global Change, 2005. http://hdl.handle.net/1721.1/29789.
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The MIT Integrated Global System Model (IGSM) is designed for analyzing the global environmental changes that may result from anthropogenic causes, quantifying the uncertainties associated with the projected changes, and assessing the costs and environmental effectiveness of proposed policies to mitigate climate risk. This report documents Version 2 of the IGSM, which like the previous version, includes an economic model for analysis of greenhouse gas and aerosol precursor emissions and mitigation proposals, a coupled atmosphere-ocean-land surface model with interactive chemistry, and models of natural ecosystems. In this global framework the outputs of the combined anthropogenic and natural emissions models provide the driving forces for the coupled atmospheric chemistry and climate models. Climate model outputs then drive a terrestrial model predicting water and energy budgets, CO2, CH4, and N2O fluxes, and soil composition, which feed back to the coupled climate/chemistry model. The first version of the integrated framework (which we will term IGSM1) is described in Prinn et al. (1999) and in publications and Joint Program Reports and Technical Notes provided on the Program’s website (http://mit.edu/globalchange/). Subsequently, upgrades of component model capabilities have been achieved, allowing more comprehensive and realistic studies of global change. Highlights of these improvements include: a substantially improved economics model, needed to provide emissions projections and to assess an increasingly complex policy environment; a new global terrestrial model comprised of state-of-the-art biogeophysical, ecological and natural biogeochemical flux components, which provides an improved capacity to study consequences of hydrologic and ecologic change; the addition of a three-dimensional ocean representation, replacing the previous two-dimensional model, which allows examination of the global thermohaline circulation and its associated climate change impacts; the addition of an explicit oceanic carbon cycle including the impact of the biological pump; the addition of a new urban air pollution model enabling better treatments of human health and climate impacts; and the addition of greater flexibility for study of terrestrial ecosystem and urban pollution effects. This report documents the essential features of the new IGSM structure.Abstract in HTML and technical report in PDF available on the Massachusetts Institute of Technology Joint Program on the Science and Policy of Global Change website (http://mit.edu/globalchange/www/).
This research was supported by the U.S Department of Energy, U.S. Environmental Protection Agency, U.S. National Science Foundation, U.S. National Aeronautics and Space Administration, U.S. National Oceanographic and Atmospheric Administration; and the Industry and Foundation Sponsors of the MIT Joint Program on the Science and Policy of Global Change: Alstom Power (France), American Electric Power (USA), BP p.l.c. (UK/USA), Chevron Corporation (USA), CONCAWE (Belgium), DaimlerChrysler AG (Germany), Duke Energy (USA), J-Power (Japan), Electric Power Research Institute (USA), Electricité de France, ExxonMobil Corporation (USA), Ford Motor Company (USA), General Motors (USA), Murphy Oil Corporation (USA), Oglethorpe Power Corporation (USA), RWE Power (Germany), Shell Petroleum (Netherlands/UK), Southern Company (USA), Statoil ASA (Norway), Tennessee Valley Authority (USA), Tokyo Electric Power Company (Japan), Total (France), G. Unger Vetlesen Foundation (USA).
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Wang, Qing. "Performance Evaluation and Integrated Management of Airport Surface Operations." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5609.
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The demand for aviation has been steadily growing over the past few decades and will keep increasing in the future. The anticipated growth of traffic demand will cause the current airspace system, one that is already burdened by heavy operations and inefficient usage, to become even more congested than its current state. Because busy airports in the United States (U.S.) are becoming "bottlenecks" of the National Airspace System (NAS), it is of great importance to discover the most efficient means of using existing facilities to improve airport operations.
This dissertation aims at designing an efficient airport surface operations management system that substantially contributes to the modernized NAS. First, a global comparison is conducted in the major airports within the U.S. and Europe in order to understand, compare, and explore the differences of surface operational efficiency in two systems. The comparison results are then presented for each airport pair with respect to various operational performance metrics, as well as airport capacity and different demand patterns. A detailed summary of the associated Air Traffic Management (ATM) strategies that are implemented in the U.S. and Europe can be found towards the end of this work. These strategies include: a single Air Navigation Service Provider (ANSP) in the U.S. and multiple ANSPs in Europe, airline scheduling and demand management differences, mixed usage of Instrument Flight Rule (IFR) and Visual Flight Rules (VFR) operations in the U.S., and varying gate management policies in two regions.
For global comparison, unimpeded taxi time is the reference time used for measuring taxi performance. It has been noted that different methodologies are currently used to benchmark taxi times by the performance analysis groups in the U.S. and Europe, namely the Federal Aviation Authority (FAA) and EUROCONTROL. The consistent methodology to measure taxi efficiency is needed for the facilitation of global benchmarking. Therefore, after an in-depth factual comparison conducted for two varying methodologies, new methods to measure unimpeded taxi times are explored through various tools, including simulation software and projection of historical surveillance data. Moreover, a sophisticated statistical model is proposed as a state-of-the-art method to measure taxi efficiency while quantifying the impact of various factors to taxi inefficiency and supporting decision-makers with reliable measurements to improve the operational performance.
Lastly, a real-time integrated airport surface operations management (RTI-ASOM) is presented to fulfil the third objective of this dissertation. It provides optimal trajectories for each aircraft between gates and runways with the objective of minimizing taxi delay and maximizing runway throughput. The use of Mixed Integer Linear Programming (MIP) formulation, Dynamic Programming for decomposition, and CPLEX optimization can permit the use of an efficient solution algorithm that can instantly solve the large-scale optimization problem. Examples are shown based on one-day track data at LaGuardia Airport (LGA) in New York City. In additional to base scenarios with historical data, simulation through MATLAB is constructed to provide further comparable scenarios, which can demonstrate a significant reduction of taxi times and improvement of runway utilization in RTI-ASOM. By strategically holding departures at gates, the application of RTI-ASOM also reduces excess delay on the airport surface, decreases fuel consumption at airports, and mitigates the consequential environmental impacts.
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Bang, Chulho. "Integrated Model to Plan Advanced Public Transportation Systems." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30275.
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The primary objective of this study is to develop an integrated public transportation planning framework to evaluate and plan Advanced Public Transportation Systems (APTS). With this purpose, a systems approach point of view is adopted to study the influence of new APTS technology in supply and demand transit variables. In this project the Systems Dynamics methodology is adopted to track the dynamic behavior of model variables and feedback loops forming among them. The proposed framework is illustrated in a case study involving automated vehicle location systems (AVL) applied to a small transit community.
The proposed approach follows the same steps of the Systems Dynamics method; First, identify some key variables which are not only susceptive to AVL technology but also affect the supply-demand relationship of a bus transit environment. Second, trace and simplify the causal relationships of the variables considering impacts of facility supply changes to passenger demand responses and vice versa. To accomplish this, four detailed sub-models representing parts of the transit system are developed and combined under the Systems Dynamics methodology point of view. Theses Sub-models are: 1) demography, 2) urban transportation planning, 3) bus operations, and 4) evaluation. Finally, to validate the model procedure, the model is applied to a case study. This study attempts to encompass as many as possible factors around a bus transit system environment which can be impacted by new APTS technology to illustrate the use of the proposed framework. Some of these factors include: 1) Demographic characteristics; 2) urban or social activity of the study area and 3) changes to transportation facilities. The case study illustrates how the physical characteristics of the transit systems such as traffic demand, traffic conditions along the transit route, route layout, and bus performance can be affected by the new technology.
Since APTS impacts are time dependent a continuous multi-loop simulation technique is adopted to track dynamic changes of all model variables. The analysis of the transit system is carried over a 20-year life cycle to illustrate the long term dynamics of the feedback structures inherent in the model.
[Vita removed Aug. 2, 2010. GMc]Ph. D.
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Barkley, Ellise Jane-Ann. "An integrated approach to evaluation: A participatory model for reflection, evaluation, analysis and documentation (the 'READ' model) in community arts." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/97728/3/Ellise%20Barkley%20Thesis.pdf.
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The research focuses on the development and critical review of the READ model, a dynamic and rigorous model for evaluation of community arts. The model's innovation lies in the integration of four key appraisal and learning strategies- Reflection, Evaluation, Analysis and Documentation (READ) - to cater for the multi-faceted demands of creative community partnership initiatives. Positioned within the contemporary debate on cultural value and impact measurement, the research contributes to the discourse on effective community arts evaluation and offers an integrated, stakeholder-oriented model of relevance to the Creative Industries, and the fields of evaluation, cultural development, project management and sustainability.
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Achmadi, Tri. "An integrated design and evaluation model for inter-island transportation systems." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386732.
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Johnson, Darius R. "Model-assisted Nondestructive Evaluation for Microstructure Quantification." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1430394815.
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Sugarman, Philip A. "A model of integrated healthcare governance." Thesis, University of Northampton, 2009. http://nectar.northampton.ac.uk/2716/.
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The history of psychiatry is littered with serious failures of governance, to the detriment of mentally disordered people, especially those resident in psychiatric hospitals. Current mental health providers, increasingly focussed on community care, have also struggled to develop effective internal governance systems. Nine peer-reviewed research papers, published by the author (mostly with others) and the wider literature, reveal deficits in mental health governance at a jurisdictional, professional, and corporate level. In this thesis new governance solutions are developed against this background, built on contemporary principles in mental health and healthcare management. A new model of mental health governance is presented, based on the key demands of the strategic and regulatory environment, articulated as rights, risks and recovery. This integrated healthcare governance approach, covering provider policy, staff training and service audit, can monitor and ensure the protection of patients’ rights, as well as those of others; it also promotes the management of clinical risks, and of patients’ recovery outcomes. Rights-based risk-reduction training is the core interventional element of the model, whilst the monitoring element can be formalised as part of a Balanced Scorecard reporting system. This thesis makes a contribution to research methodology, theory and practice in mental health, human rights, healthcare management and governance. The model generates specific propositions for testing in mental health governance, with the potential for application in wider settings of service provision.
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Su, Wei-Nian 1971. "Evaluation of aircraft performance algorithms in Federal Aviation Administration's Integrated Noise Model." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/47728.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.Includes bibliographical references (leaf 110).
The Integrated Noise Model (INM) has been the Federal Aviation Administration's (FAA) standard tool since 1978 for determining the predicted noise impact in the vicinity of airports. A review of the aircraft performance algorithms in the INM was conducted and improved models for true airspeed, takeoff/climb thrust, level-flight thrust, and climb performance were developed. The true airspeed model with air compressibility correction provides an accurate prediction over a wide range of operating conditions. The quadratic takeoff/climb thrust model as a function of Mach number, altitude, and temperature and the level-flight thrust model derived from the minimum-thrust-flight condition provide an accurate prediction within considered airspeed and altitude range. The climb models for constant equivalent/calibrated airspeed as well as constant climb rate climbs introduce the flight path angle correction factor as a function of altitude, airspeed, and temperature as opposed to constant correction factor used in INM. Comparison of flight profiles predicted by the proposed methods and INM with the flight profiles provided by the Delta Airlines shows that the errors in overall ground distance traversed as well as noise contour shapes are reduced by implementing the proposed models.
by Wei-Nian Su.
S.M.
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Roets, Yzelle. "The design and evaluation of an integrated enterprise architecture metamodel." Thesis, University of Pretoria, 2015. http://hdl.handle.net/2263/43531.
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The research focuses on the relationship and interlinking between the different architectural domains within the enterprise architecture of an enterprise. The architectural domains are grouped together as business architecture, information architecture and technology architecture.
First, a literature review of the definitions, history, role, functions and qualities, existing frameworks, models and domains of enterprise architecture was conducted. The definitions; role and benefits; models, frameworks, ontologies and descriptive languages of the different architectural domains were then studied as background and basis. New definitions were deduced.
Second, the modelling methodology, process, elements and deliverables were investigated. An integration metamodel for enterprise architecture was developed, according to this modelling methodology. The metamodel is called the Relational Enterprise Architecture Metamodel or the REAM.
Third, the research methodology for the empirical research section was investigated and determined. The proposed conceptual metamodel has been assessed through a case study within three different industries each. The feedback from the case studies was used to modify/enhance the metamodel. The possibilities for application of the modified model were then assessed at the University of Pretoria.
The contribution of this research lies mainly in the development, empirical testing and refining of an integrated EA metamodel (REAM) as well as the development of new definitions for enterprise, business, information and technology architecture and relating them.Thesis (PhD)--University of Pretoria 2015.
Information Science
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Al-Khadra, Wesam Faisal. "R & D project management : approach to an integrated model for project evaluation." Thesis, University of Portsmouth, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428838.
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Suzuki, Satomi. "Integrated evaluation of structural uncertainty using history matching from seismic imaging uncertainty model /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Mustafa, Atif. "Nutrient removal with integrated constructed wetlands : microbial ecology and treatment performance evaluation of full-scale integrated constructed wetlands." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4111.
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Wastewaters from intensive agricultural activities contain high concentrations of nitrogen and phosphorus that contributes to water management problems. During the past few years, there has been considerable interest in the use of constructed wetlands for treating surface water runoff from farmyards. If the contaminated runoff is not treated, this wastewater along with other non-point sources of pollution can seriously contaminate the surface water and groundwater. Integrated Constructed Wetlands (ICWs) are a type of free water surface wetlands. They are engineered systems that are designed, constructed and operated successfully for treating farmyard runoff in the British Isles. However, the long-term treatment performance of these systems, the processes involved in contaminant removal and the impact on associated water bodies are not well-known. The aims of this project were to assess the performance of full-scale integrated constructed wetlands and understand nutrient removal in them. Performance evaluation of these systems through physical, chemical and microbiological parameters collected for more than 7 years showed good removal efficiencies compared to international literature. The monitored nutrient concentrations in groundwater and surface waters indicate that ICW systems did not pollute the receiving waters. The role of plants (Typha latifolia) and sediment in removing nutrients was also assessed. More nitrogen and phosphorus were stored in wetland soils and sediments than in plants. The results demonstrate that the soil component of a mature wetland system is an important and sustainable nutrient storage compartment. A novel molecular toolbox was used to characterise and compare microbial diversity responsible for nitrogen removal in sediment and litter components of ICW systems. Diverse populations of nitrogen removing bacteria were detected. The litter component of the wetland systems supported more diverse nitrogen removing bacteria than the sediments. Nitrogen removing bacteria in the wetland systems appeared to be stochastically assembled from the same source community. The self-organising map model was applied as a prediction tool for the performance of ICW and to investigate an alternative method of analysing water quality performance indicators. The model performed very well in predicting nutrients and biochemical oxygen demand with easy to measure and cost-effective water quality parameters. The results indicate that the model was an appropriate approach to monitor wastewater treatment processes and can be used to support management of ICW in real-time.
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Cheng, Danling. "Integrated System Model Reliability Evaluation and Prediction for Electrical Power Systems: Graph Trace Analysis Based Solutions." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/28944.
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A new approach to the evaluation of the reliability of electrical systems is presented. In this approach a Graph Trace Analysis based approach is applied to integrated system models and reliability analysis. The analysis zones are extended from the traditional power system functional zones. The systems are modeled using containers with iterators, where the iterators manage graph edges and are used to process through the topology of the graph. The analysis provides a means of computationally handling dependent outages and cascading failures. The effects of adverse weather, time-varying loads, equipment age, installation environment, operation conditions are considered. Sequential Monte Carlo simulation is used to evaluate the reliability changes for different system configurations, including distributed generation and transmission lines. Historical weather records and loading are used to update the component failure rates on-the-fly. Simulation results are compared against historical reliability field measurements.
Given a large and complex plant to operate, a real-time understanding of the networks and their situational reliability is important to operational decision support. This dissertation also introduces using an Integrated System Model in helping operators to minimize real-time problems. A real-time simulation architecture is described, which predicts where problems may occur, how serious they may be, and what is the possible root cause.Ph. D.
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Duff, Beverley. "Development and evaluation of an integrated clinical learning model to inform continuing education for acute care nurses." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/42622/1/Beverley_Duff_Thesis.pdf.
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Background Significant ongoing learning needs for nurses have occurred as a direct result of the continuous introduction of technological innovations and research developments in the healthcare environment. Despite an increased worldwide emphasis on the importance of continuing education, there continues to be an absence of empirical evidence of program and session effectiveness. Few studies determine whether continuing education enhances or develops practice and the relative cost benefits of health professionals’ participation in professional development. The implications for future clinical practice and associated educational approaches to meet the needs of an increasingly diverse multigenerational and multicultural workforce are also not well documented. There is minimal research confirming that continuing education programs contribute to improved patient outcomes, nurses’ earlier detection of patient deterioration or that standards of continuing competence are maintained. Crucially, evidence-based practice is demonstrated and international quality and safety benchmarks are adhered to. An integrated clinical learning model was developed to inform ongoing education for acute care nurses. Educational strategies included the use of integrated learning approaches, interactive teaching concepts and learner-centred pedagogies. A Respiratory Skills Update education (ReSKU) program was used as the content for the educational intervention to inform surgical nurses’ clinical practice in the area of respiratory assessment. The aim of the research was to evaluate the effectiveness of implementing the ReSKU program using teaching and learning strategies, in the context of organisational utility, on improving surgical nurses’ practice in the area of respiratory assessment. The education program aimed to facilitate better awareness, knowledge and understanding of respiratory dysfunction in the postoperative clinical environment. This research was guided by the work of Forneris (2004), who developed a theoretical framework to operationalise a critical thinking process incorporating the complexities of the clinical context. The framework used educational strategies that are learner-centred and participatory. These strategies aimed to engage the clinician in dynamic thinking processes in clinical practice situations guided by coaches and educators. Methods A quasi experimental pre test, post test non–equivalent control group design was used to evaluate the impact of the ReSKU program on the clinical practice of surgical nurses. The research tested the hypothesis that participation in the ReSKU program improves the reported beliefs and attitudes of surgical nurses, increases their knowledge and reported use of respiratory assessment skills. The study was conducted in a 400 bed regional referral public hospital, the central hub of three smaller hospitals, in a health district servicing the coastal and hinterland areas north of Brisbane. The sample included 90 nurses working in the three surgical wards eligible for inclusion in the study. The experimental group consisted of 36 surgical nurses who had chosen to attend the ReSKU program and consented to be part of the study intervention group. The comparison group included the 39 surgical nurses who elected not to attend the ReSKU program, but agreed to participate in the study. Findings One of the most notable findings was that nurses choosing not to participate were older, more experienced and less well educated. The data demonstrated that there was a barrier for training which impacted on educational strategies as this mature aged cohort was less likely to take up educational opportunities. The study demonstrated statistically significant differences between groups regarding reported use of respiratory skills, three months after ReSKU program attendance. Between group data analysis indicated that the intervention group’s reported beliefs and attitudes pertaining to subscale descriptors showed statistically significant differences in three of the six subscales following attendance at the ReSKU program. These subscales included influence on nursing care, educational preparation and clinical development. Findings suggest that the use of an integrated educational model underpinned by a robust theoretical framework is a strong factor in some perceptions of the ReSKU program relating to attitudes and behaviour. There were minimal differences in knowledge between groups across time. Conclusions This study was consistent with contemporary educational approaches using multi-modal, interactive teaching strategies and a robust overarching theoretical framework to support study concepts. The construct of critical thinking in the clinical context, combined with clinical reasoning and purposeful and collective reflection, was a powerful educational strategy to enhance competency and capability in clinicians.
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Carrion, Yaguana Vanessa Del Rocio. "Adoption Analysis and Impact Evaluation of Potato IPM in Ecuador." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23286.
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There are several well-known negative side effects associated with pesticide use such as health problems and environmental pollution. Integrated Pest Management (IPM) seeks to minimize pesticide use while reducing pest infestation to economically tolerable levels. The introduction of IPM CRSP activities in Ecuador to institutionalize IPM methods focused on priority crops in the country. This study analyzes adoption and the economic impacts of IPM technologies on potato production in the province of Carchi. A model is estimated in which IPM adoption is discrete and ordered and pesticides expenditures are estimated as a function of education, farming experience, wealth, plot size and farmer being sick due to pesticide use for each level of IPM adoption. Results indicate that farmers who were exposed to certain IPM information sources increased adoption of IPM practices on potatoes, but farmers\' education and experience were not important factors in explaining IPM adoption. The calculated economic benefits in terms of aggregate cost savings per production cycle were $823,000.Master of Science
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Youssef, Lamiaa S. "Toward a learner-centered evaluation of instruction a course-integrated model for a dialogic assessment of learning and instruction." Saarbrücken VDM Verlag Dr. Müller, 2006. http://d-nb.info/991508106/04.
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Brotman, Susan Rose. "The Evaluation of Device Model Dependence in the Design of a High-Frequency, Analog, CMOS Transconductance-C Filter." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4701.
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It is important to have the ability to predict the effects of device model variation when designing integrated transconductance-C type active filters. Applying these filters to integrated circuit design has become increasingly popular due to its ease of implementation in monolithic form. With the introduction of fully automated design tools, predictable behavior of high-level variables becomes still more important. The purpose of this study is to evaluate the process parameter spread of analog device models to determine the effect on the design parameters of an active filter. This information's significant contribution directly effects the feasibility and realization of automating analog filter design. In order to explore the dependence of filter performance on the device v model parameter spread, a fifth-order inverse Chebyshev filter is designed and simulated using a two year history of process models. It has not been observed that higher order filters have been successfully designed using fully automated design tools. This filter was realized using automated filter design currently being developed in parallel with this study. A single-ended input to single-ended output transconductance amplifier is chosen for this design for its simplicity and small size. Differential performance is easily adapted with exact duplication which is demonstrated in the measurements of the fabricated filter. Simulation of the design is performed using MOSIS SCNA device parameters. Filter performance data such as cutoff frequency, stopband attenuation, and phase response is collected. Experimental results from the fabricated device are compared to simulation and the original prototype. 2 It is shown that the most predicable effect on the design parameters of a filter is caused by the parasitic output conductance parameter g0. This process dependent variable causes both a deviation in the cutoff frequency, and a decrease in the filter quality factor. In addition, it is also shown that the practice employed to predistort for absorption of parasitic capacitors in a MOS technology is a very effective tool in the reduction of capacitive process dependence.n software
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Majidi, Naz E. (Naz Emilie) 1979. "Evaluation framework of construction alternative dispute resolution methods through an integrated model of real options, probabilistic analysis and system dynamics." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/85384.
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Hiep, Nguyen Trong. "Economic Evaluation of Transportation Infrastructure Development with Computable Urban Economic Model --A Case of Hanoi,Vietnam." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188569.
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Lohre, Sara Beth. "Attune With Baby: An Innovative Attunement Program for Parents and Families With Integrated Evaluation." Antioch University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1499289825291502.
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Bibas, Ruben. "Methodological, technical and macroeconomic insights on the climate and energy transition : forward-looking analysis, technologies and investment." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1076.
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Cette thèse propose des apports méthodologiques, techniques et macroéconomiques sur la transition énergétique pour atténuer les changements climatiques. La première partie apporte un éclairage théorique sur modèles empiriques du système énergie-économie-environnement. Ces modèles présentent des incertitudes autour des valeurs de paramètres, des mécanismes structurels et de la pertinence des échelles du modèle. L'étude du rôle de l'analyse prospective et de ses outils montre un traitement insuffisant de l'incertitude structurelle contenue dans les modèles. Par conséquent, nous étudions en profondeur les outils appliqués d'analyse prospective pour révéler la vision prospective qu'ils incarnent à travers trois axes: les interdépendances qu'ils incorporent, les mécanismes de transformation et la représentation de la transition. Tout d'abord, les interdépendances qu'ils comprennent se manifestent en termes de schémas comptables, boucle de rétroaction entre énergie et croissance économique, et la représentation de la valeur ajoutée et des niveaux d'activité par rapport aux technologies. Puis, les forces de transformation sont discutées: le moteur de la croissance économique ainsi que la source de l'évolution des tendances de la demande et le progrès technique. Enfin, nous commentons la manière habituelle dont la transition est représentée, c'est-à-dire comme une trajectoire à l'équilibre pour la dynamique technologique, les choix économiques ainsi que la représentation des marchés. Nous concluons que cette spécification de la transition est inhérente à la fonction de production traditionnelle pour représenter les choix à la fois techniques et économiques. Cela entraîne une discussion sur le statut de l'équilibre macro-économique dans l'outil Imaclim, qui est un modèle walrasien d'équilibre général avec une transition en déséquilibre. Suite à cette analyse méthodologique, nous donnons des exemples de travaux empiriques menés avec le modèle Imaclim-R. Premièrement, nous examinons à l'échelle mondiale l'inclusion de technologies dans le modèle Imaclim-R Monde pour évaluer le potentiel, les limites et l'impact sur le calendrier de l'action des options pour la bioénergie et des politiques d'efficacité énergétique. Nous expliquons techniquement comment les technologies de la bioénergie sont inclus dans le modèle pour faire la lumière sur la complémentarité entre bioénergie et CCS et évaluer les impacts macroéconomiques temporels de l'atténuation du changement climatique. En outre, nous analysons la représentation de l'efficacité énergétique avec une analyse détaillée des mécanismes par lesquels elle influe sur la croissance et interagit avec le calendrier de l'atténuation climatique. Nous présentons ensuite le rôle du modèle Imaclim-R France pour impliquer les parties prenantes autour de la création de scénarios participatifs. Ensuite, nous discutons des impacts technologiques et macroéconomiques de ces scénarios. En particulier, nous examinons les conséquences pour les besoins d'investissement et de montrer que la taxe carbone peut être réduite avec un signal politique fortThis dissertation discusses methodological, technical and macroeconomic insights on the energy transition for climate mitigation. The first part deals with the theoretical analysis of empirical models of the energy-economy-environment system. Model present uncertainties in terms of parameter values, structural mechanisms and the pertinence of the model scales. The study of the role of forward-looking analysis and its tools show an insufficient treatment of the structural uncertainty contained within the models. Therefore, we study in depth the applied tools of forward-looking analysis to elicit the forward-looking vision they embody through three axes. the interdependences they include, the transformation mechanisms and the transition representation. First, the interdependences they include manifest in terms of accounting schemes, feedback loop between energy and economic growth, value added, and the representation of activity levels in relation to technologies. Then, the transformation drivers are discussed: the economic growth engine as well as the source of the evolution of demand patterns and technical progress. Finally, we comment on the widely spread way of the representation the transition as a pathway in equilibrium for the technology dynamics, the economic choices as well as the markets representation. We conclude that this specification of the transition is inherent to traditional production function to represent both technical and economic choices. This brings about a discussion on the status of the macroeconomic equilibrium in the Imaclim tool, which is Walrasian CGE model with a transition in disequilibrium. The second part regroups empirical studies of the macroeconomic impacts of climate change mitigation. First, we examine at the global level the inclusion of technologies in the Imaclim-R World model to assess the potential, limitations and the impact on the timing of action of bioenergy options and energy efficiency policies. We explain technically how bioenergy technologies are included within the model to shed light on the complementarity of bioenergy and CCS and assess their impact of the temporal macroeconomic impacts of climate mitigation. Also, we present the representation of energy efficiency with a detailed analysis of the mechanisms through which it impacts growth and assess the interplay with the timing of climate mitigation. Second, we present a study to design energy transition scenarios at the French level with stakeholder involvement and discuss the macroeconomic impacts, in particular on investment. We present the role of the Imaclim-R France model to involve stakeholders around participative scenario creation. Then, we discuss the technological and macroeconomic impacts of these scenarios. In particular, we examine the consequences for investment needs and show that the carbon tax can be reduced with a strong political signal
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Nyasulu, Maganizo Kruger. "Scenario Evaluation of Malawi Energy Policy: LEAP System Modelling Projections from 2008 to 2063." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-371239.
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National access to modern energy is deemed by Malawi government as the driving force to attain social-economic development. To achieve this, optimal decisions in energy planning and investment are considered important. This study evaluates potential pathways that will inform better policy design and investment option in energy sector. The Integrated Assessment Modelling method has been used to integrate social, economic and environmental variables that affect energy systems, and further analyses potential energy pathways in relation to these earth systems. The Long-range Alternatives Energy Planning system (LEAP) has been used to run a continuous time series from 2008 to 2063 of the three energy policy pathways (scenarios) using: (1) the current Malawi National Policy and Strategies on Energy (MwNEP) (2) the United Nation’s Sustainable Energy for All strategy (SE4ALL) and (3) Business as Usual (REF) scenario. The analysis indicates an exponential growth in energy demand for both MwNEP and SE4ALL scenario with a slight higher demand in SEAll over MwNEP Scenario. In both cases Biomass remains an important energy source beyond the 2030. Thus, the SDG 7 will not be achieved by 2030. Similarly, energy demand trends in MwNEP and SE4ALL scenarios continue to grow beyond available energy stocks and generation capacity which will lead to a shortfall in energy supply. Environmentally, the GHGs emissions in MwNEP are higher than the SE4ALL scenario. This is reflected in the pro-environment policy objective pursued by SE4ALL scenario. In the medium-term LEAP analysis favours advancement of alternative renewable energies at household level like solar photovoltaic (PV) for lighting and sustainable biomass energy for cooking. In the long-run, scaling up the adoption of renewable energy in form of solar, wind and hydro-electricity to meet the energy gap. At the same time, designing and adhering to implementation of sustainable energy plans that cuts energy sources from fossil fuels and allow easy accesses to affordable renewable energies will result in a success of Malawi’s energy system.
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Du, Toit Maria Margrietha. "An evaluation of the co-operative business model within the context of the global reporting initiative / Maria Margrietha (Marné) du Toit." Thesis, North-West University, 2012. http://hdl.handle.net/10394/8725.
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Milton Friedman’s theory of free market corporate responsibility, which states that the
maximizing of profits is the only social responsibility a law-abiding business has, is clearly a
concept of the past. A concept that is very relevant today, is the concept of sustainable
development, which may be defined as development that meets the needs of the present
world without forfeiting the ability of future generations to meet their personal needs. This
concept recognises that stakeholders and shareholders require forward-looking information to
attend to the economic, environmental and social aspects of a business’s activities. Previous
research has indicted that the financial performance of a business alone isn’t the sole reason
for its success. This demonstrates the change from a single-bottom-line management and
reporting approach to a triple-bottom-line management and reporting approach. The Global
Reporting Initiative (GRI) developed a Sustainability Reporting Framework that is generally
considered the most widely used framework in terms of social responsibility reporting.
In this research project, the unique set of business principles and values of co-operatives were
analyzed and evaluated, and congruence were found between sustainable development and
co-operative governance. Co-operatives in their diverse forms support the fullest participation
in the economic and social development of people since they put people at the centre of their
business and not capital. The primary objective of this study was to determine the extent to
which the GRI guidelines, as a reporting framework, are feasible or applicable to cooperatives
as a business model.
In this research project, the abovementioned GRI guidelines are applied on a selected cooperative’s
activities. The empirical case study, based on the agricultural co-operative Agri-
Com, illustrated that the Level C Reporting Framework as per the GRI, can be used very
successfully in the co-operative business model. In the case of Agri-Com, it was found that even though it is a co-operative, its primary management and reporting focus remained
primarily on the financial aspects. It can therefore be recommended that in this instance, the
guidelines per the Level C Reporting Framework, be considered as a method to better
embrace the principles of the co-operative business model.Thesis (MCom (Management Accountancy))--North-West University, Potchefstroom Campus, 2013
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Kadiyala, Akhil. "Development and Evaluation of an Integrated Approach to Study In-Bus Exposure Using Data Mining and Artificial Intelligence Methods." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1341257080.
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De, Coning Gerhard Lourens. "An integrated service excellence model for strategic military test and evaluation facilities : the case of the South African National Department of Defence / Gerhard L. de Coning." Thesis, North-West University, 2009. http://hdl.handle.net/10394/4138.
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Capital-intensive military test and evaluation facilities that are governed within the public entity domain need to deliver effective and efficient services in meeting or exceeding the Department of Defence's requirements and in retaining strategic defence capabilities and technologies. Various business and operational processes currently exist in these facilities, without any common quality assurance, control and performance management systems. The primary objective of this study was to develop an integrated service excellence model in order to obtain and continuously improve service excellence in the services provided by these strategic military test and evaluation facilities, ensuring that all activities necessary to design, develop and implement a test and evaluation service are effective and efficient.
In order to develop an integrated service excellence model, various management tools and approaches to improve quality in the search for service excellence were identified and described. Total Quality Management (TQM), Business Process Re-engineering (BPR), the South African Excellence Model (SAEM) and the Balanced Scorecard (BSC), amongst other productivity and quality models, were researched and evaluated and tested through an empirical study conducted at the various test and evaluation facilities. Financial, human resources and environmental challenges facing the facilities in obtaining service excellence within the boundaries of public governance were explored in order to build the solutions to these challenges into the integrated service excellence model. Effective and efficient deployment of the facilities' resources, as well as the development and incorporation of safety, health and environmental policies and management standards were discussed and measured against national legislation. Applicable military, industrial and commercial quality standards and specifications, such as the International Organisation for Standardisation (ISO) quality management standards and the Republic of South Africa (RSA) military standards, were explored as the burden is on the facilities not only to obtain official accreditation to render specific test and evaluation services, but also to maintain accreditation and to execute the services against these standards.
As corporate governance is a multi-faceted subject impacting on economic efficiency and shareholder's welfare, much emphasis was placed on governance principles through the identification of a framework and governance objectives in which the test and evaluation facilities operate. Good governance characteristics, such as discipline, transparency, independence, accountability, responsibility, fairness and social responsibility, were identified through the King 2 Report.
This study was conducted amongst senior and top management of the test and evaluation facilities and amongst members of the Department of Defence through an interviewer-administered questionnaire comparing information and data on theory on service excellence, quality management, performance management, governance principles with the interviewer-questionnaire responses to performance indicators at these facilities. Management perceptions and management recommendations contributed to the development of the integrated service excellence model as well as to the future implementation of the model. It was evident through the study that no such integrated model exists to address the test and evaluation needs of the Department of Defence.Thesis (Ph.D. (Public Management and Administration))--North-West University, Potchefstroom Campus, 2009.
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Aguolu, Obianuju Genevieve. "Development and Evaluation of a Theory-Informed, Culturally Specific Educational Human Papillomavirus (HPV) Vaccine Comic Book for College Students’ in Northeast Ohio: An Application of the Integrated Behavior Model (IBM)." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1542806751105216.
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Lewe, Jung-Ho. "An Integrated Decision-Making Framework for Transportation Architectures: Application to Aviation Systems Design." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-04132005-204114/unrestricted/Jung-Ho%5FLewe%5F200505%5Fphd.pdf.
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Thesis (Ph. D.)--Aerospace Engineering, Georgia Institute of Technology, 2005.Amy R. Pritchett, Committee Member ; Moore, Mark D., Committee Member ; Wilhite, Alan, Committee Member ; Schrage, Daniel P., Committee Chair ; Mavris, Dimitri N., Committee Co-Chair ; DeLaurentis, Daniel A., Committee Member. Vita. Includes bibliographical references.
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Qasim, Lara. "System reconfiguration : A Model based approach; From an ontology to the methodology bridging engineering and operations Model-Based System Reconfiguration: A Descriptive Study of Current Industrial Challenges Towards a reconfiguration framework for systems engineering integrating use phase data An overall Ontology for System Reconfiguration using Model-Based System Engineering An Ontology for System Reconfiguration: Integrated Modular Avionics IMA Case Study A model-based method for System Reconfiguration." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST031.
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Les évolutions des systèmes doivent être gérées de manière à garantir l'efficacité et l'efficience du système tout au long de son cycle de vie, en particulier lorsqu'il s'agit de systèmes complexes qui nécessitent des années de développement et des dizaines d'années d'utilisation. La reconfiguration des systèmes est primordiale pour la gestion des systèmes complexes, car elle permet d'assurer la flexibilité et l'adaptabilité des systèmes en ce qui concerne leur évolution. La reconfiguration des systèmes assure l'efficacité opérationnelle et augmente les qualités des systèmes (par exemple, la fiabilité, la disponibilité, la sécurité, etc.).Cette thèse a été effectuée en partenariat avec une entreprise évoluant dans les domaines de l’aérospatial, de l’espace, du transport, de la défense et de la sécurité. Les entreprises portent un intérêt croissant sur la reconfiguration des systèmes afin de garantir leurs efficacités opérationnelles. L’objectif de cette thèse est de proposer une approche basée sur les modèles pour soutenir la reconfiguration de système.En effectuant une étude descriptive, basée sur une étude de terrain et l’analyse de l’état de l’art, le développement d’un support lié à la reconfiguration de système a été identifié comme enjeu industriel majeur. Le défi principal consiste à identifier les données relatives à la reconfiguration des systèmes et leurs mécanismes d’intégration afin d’atteindre cet objectif.Dans cette thèse, nous présentons une ontologie, que nous avons nommé OSysRec, qui intègre les données nécessaires pour la reconfiguration et gestion des systèmes. De plus, OSysRec agrège les trois aspects indispensables à la gestion des process de la reconfiguration de système: la structure, la dynamique, et la gestion.Nous présentons également une méthode basée sur les modèles (MBSysRec) qui intègre les données de reconfiguration et fait le lien entre les phases d’ingénierie et d’opération. Cette méthode est multidisciplinaire qui implique des générations combinatoires de configurations et des décisions multicritères pour leurs évaluations et sélections. Nous avons pu démontrer sur deux cas d’étude la validité de cette méthode pour trouver des solutions performantes et pertinentes.Cette thèse est un premier étape pour la mise en œuvre d’une approche basée sur les modèles pour la reconfiguration de système permettant leur flexibilité et leur adaptabilitéSystem evolutions have to be managed to ensure system effectiveness and efficiency through its whole lifecycle, particularly when it comes to complex systems that take years of development and dozens of years of usage. System Reconfiguration is key in complex systems management, as it is an enabler of system flexibility and adaptability regarding system evolutions. System reconfiguration ensures operational effectiveness and increases system qualities (e.g., reliability, availability, safety, and usability).This research has been conducted in the context of a large international aerospace, space, ground transportation, defense, and security company. This research aims at supporting system reconfiguration during operations.First, we conducted a descriptive study based on a field study and a literature review to identify the industrial challenges related to system reconfiguration. The main issue lies in the development of reconfiguration support. More specifically, challenges related to data identification and integration were identified.In this thesis, we present the OSysRec ontology, which captures and formalizes the reconfiguration data. The ontology synthesizes the structure, dynamics, and management aspects necessary to support the system reconfiguration process in an overall manner.Furthermore, we present a model-based method (MBSysRec) that integrates system reconfiguration data and bridges both the engineering and the operational phases. MBSysRec is a multidisciplinary method that involves combinatorial configuration generation and a multi-criteria decision-making method for configuration evaluation and selection.This thesis is a step towards a model-based approach for system reconfiguration of evolving systems, ensuring their flexibility and adaptability
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Faramarzi, Ghazal, and Malin Torestam. "Development of evaluation tools as an approach to pre-design district energy systems : Qualitative modeling and performance simulation using OpenModelica." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288104.
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Cities and districts contribute to a large fraction of the total energy consumption in Sweden. The residential- and service sector accounted for almost 40% of the total energy consumption in 2018. The increasing urbanization also puts more importance on the energy supply, distribution and consumption in these areas. One way of planning an energy system in urban areas is to have integrated energy systems where synergies between different technologies and energy carriers are utilized. Such a solution can increase the flexibility of the energy system and thus help integrate more intermittent renewable energy sources. The aim of this study was to suggest tools for planning energy systems in districts. This was done by performing a literature review regarding the design of energy systems and the identification of barriers and opportunities for the integration of different production- and distribution technologies. The focus was on systems for heating, cooling and electricity. The proposed tools are three Excel-based modules. The first module is a qualitative model that presents the reviewed technologies and their connections. It also includes synergies between different energy carriers and sectors for consumption and production. The second module is qualitative model related to market mechanisms, juridical, organizational and institutional aspects. The third module is a table containing the barriers and opportunities. Furthermore, relevant stakeholders are identified to be district heating companies, building owners, joint associations, municipalities, district cooling companies and photovoltaic plant owners. The proposed tools can be used in the first stage of planning when the technologies are selected. To show how the suggested tools can be applied, a case study was performed. The study case is a district being planned in Stockholm, Sweden. For the analysis, a model for a hypothetical heating system was required. Two models were developed for the heat supply system using the modelling environment OpenModelica. The main objective of the case study was to compare the techno-economic and environmental performance of different scenarios. Three different scenarios were considered for covering the total heating demand in the district. In the first scenario the total heating demand is covered only by local heat pumps. In the second scenario the space heating demand is covered by heat pump(s) coupled with a thermal energy storage (hot water tank). An electric boiler is used as backup. In the third scenario, the electric boiler is replaced by district heating as backup. A sensitivity analysis was included for different numbers of heat pumps and different sizes of thermal energy storage in the two last scenarios. The economic and environmental results in this study were strongly dependent on the assumptions regarding prices and emission factors. The result of the case study indicates that the third scenario causes the lowest CO2 emissions. An increased size of the thermal energy storage causes a higher compressor electricity consumption thus more emissions. However the total emissions from the system depends on the backup component. For this result, the emission factor related to Swedish electricity mix and the emission factor stated by a district heating company in Stockholm was used. The cheapest alternative in terms of annual operational cost of energy is the first scenario with only heat pumps. However, from the scenarios which also includes thermal energy storage, the second scenario with three heat pumps and a 100 m3 large thermal energy storage, presents the lowest cost. This system design in scenario 2 is only 0.6% more expensive than the first scenario. For the energy prices, the assumption for electricity is based on hourly values from Nordpol and for heat, the values presented in a normal price list from a district heating company is assumed. Regarding the technical performance of the system the result indicates that the contribution from the thermal energy storage as it is modelled in this case study is not significant on anannual basis. However it is observed that a larger thermal energy storage unit covers a higher fraction of the power demand during the hours it is utilized.Städer och stadsdelar står för en stor del av totala energikonsumtionen i Sverige. Bostads- och servicesektor stod för ungefär 40% av totala energikonsumtionen under 2018. Den ökande urbaniseringen lägger också mer vikt vid energiproduktion, distribution och konsumtionen i dessa områden. Ett alternativ för planering av energisystem i urbana områden är att ha integrerade energisystem där synergier mellan olika teknologier och energibärare kan utnyttjas. Den typen av system skulle kunna öka flexibiliteten i energisystemet och därför förenkla integrering av oförutsägbara förnybara energikällor. Syftet med denna studie var att föreslå verktyg för planering av energisystem i stadsdelar. Detta gjordes genom en litteraturstudie angående utformningen av olika energisystem samt identifiera hinder och möjligheter för att integrera olika produktions- och distributions teknologier. Fokus låg på systemen för värme, kyla och elektricitet. Det föreslagna verktygen är tre Excel baserade moduler. Den första modulen är en qualitative modell som presenterar de studerade teknologier och deras kopplingar. Den innehåller också synergier mellan de olika energibärarna och konsumtions- och produktionssektorn. Den andra modulen är en qualitative modell, men relaterad till marknad mekanismer, juridiska, organisatoriska och institutionella aspekter. Den tredje modulen är en tabell som beskriver hinder och möjligheter för några av teknologierna. Utöver det de relevanta aktörerna identifierades. För värme-, kyla- och elektricitet marknaden är de fjärrvärmeföretagen, fastighetsägare, samfälligheter, kommuner, fjärrkyla företagen, solcells ägare. De föreslagna verktyget kan användas för planering av energisystem i ett första skede när teknologier ska väljas. En fallstudie genomfördes för att visa hur det föreslagna verktyget kan användas. Fallstudien en stadsdel som planeras i Stockholm, Sverige. För att genomföra en analys behövdes en modell för ett hypotetiskt värmesystem. Två modeller utvecklades för värmesystemet genom att använda modelleringsmiljön OpenModelica. Det huvudsakliga målet med fallstudien var att jämföra den teknoekonomiska- och miljöinriktade prestandan för olika scenarierna. Tre olika scenarier övervägdes för att täcka totala värmebehovet i stadsdelen. I det första scenariot täcks det totala värmebehovet endast av lokala värmepumpar. I andra scenariot täcks värmebehovet för uppvärmning av värmepump(ar) kopplade till en värmelagrings komponent (ackumulatortank). En elpanna användes för reserveffekt. I tredje scenariot är elpannan ersatt av fjärrvärme. En känslighetsanalys var utförd för olika antal värmepumpar kopplade till olika storlekar av värmelagrings-komponenten i de två sista scenarierna. De ekonomiska och miljörelaterade resultatet i den här studien är starkt beroende av antaganden gällande priser och utsläppsfaktorer. Resultatet indikerar att det tredje scenariot har de lägsta CO2 utsläppen. Ökad värmelagringsstorlek bidrar till att värmepumpen förbrukar mer elektricitet och därför ökar de relaterade utsläppen. Däremot beror de totala utsläppen i systemet på vilken reservkraft som används. För dessa resultat användes utsläppsfaktorn för svensk elmix samt utsläppsfaktorn från ett fjärrvärme företag i Stockholm. Den billigaste alternativet gällande årlig driftsenergikostnad är det första scenariot med endast värmepumpar. Däremot, bland de scenarion som innehåller värmelagring, har det andra scenariot med tre värmepumpar och 100m3 stor värmelagringsenhet den lägsta kostnaden. Detta system är endast 0.6% dyrare än det första scenariot. För energipriser har timvärden från Nordpol antagits för elektricitet och för värme har normalprislistan från ett fjärrvärmebolag i Stockholm antagits. Angående den tekniska systemprestandan, indikerar resultatet att bidraget från värmelagringsenheten som den är modellerad i den här fallstudien inte är signifikant på årsbasis. Det observeras emellertid att en större värmelagringsenhet täcker en större andel av effektbehovet under de timmar som enheten används.
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Vélez, Ramos Jeimy Beatriz. "Entorno de aprendizaje virtual adaptativo soportado por un modelo de usuario integral." Doctoral thesis, Universitat de Girona, 2009. http://hdl.handle.net/10803/7607.
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El objetivo de esta tesis es mejorar la efectividad y eficiencia de los entornos de aprendizaje virtual. Para lograr este propósito se define un Modelo de Usuario que considera las características del usuario, el contexto y la Interacción. Estas tres dimensiones son integradas en un Modelo de Usuario Integral (MUI) para proveer adaptación de contenido, formato y actividades en entornos educativos con heterogeneidad de usuarios, tecnologías e interacciones. Esta heterogeneidad genera la entrega de contenidos, formatos y actividades inadecuadas para los estudiantes. La particularización del MUI en un entorno educativo es definida Modelo de Estudiante Integral (MEI). Las principales aportaciones de esta tesis son la definición y validación de un MUI, la utilización de un MEI abierto para propiciar la reflexión de los estudiantes sobre sus procesos de aprendizaje, la integración tecnológica con independencia de plataforma y la validación del MEI con estudiantes en escenarios reales.he aim of this thesis is to improve the effectiveness and efficiency of virtual learning environments. To that end, it defines a user model that considers at the same time the characteristics of the user, the context and the interaction. These three dimensions are embodied into an Integrated user model (MUI, from the Spanish Modelo de Usuario Integral) to provide adaptation of content, format and educational activities in heterogeneous environments of users, technologies and interactions. One problem that arises in such heterogeneous environments is that inadequate content, format and activities are delivered to students. The MUI is a general model, and as an example of its application, an Integrate Learner Model (MEI, from the Spanish Modelo de Estudiante Integral) is introduced in an educational setting. The main contributions of this thesis are the definition and validation of a MUI, the use of an open MEI to promote student reflection on their learning experience, technology integration with platform independence and validation of the MEI with students in the real world.
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González, Domínguez Elisa. "Biology, epidemiology and control of Fusicladium eriobotryae, causal agent of loquat scab." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/38715.
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El moteado del níspero, causado por el hongo Fusicladium eriobotryae es la principal enfermedad que afecta al cultivo del níspero, produciendo pérdidas importantes en la cosecha en los años con condiciones climáticas adecuadas. Sin embargo, no existen estudios sobre la epidemiología y el control de esta enfermedad, por lo que éstos constituyen el principal objetivo de la presente Tesis. Para ello, se va ha caracterizar in vitro y en campo la influencia de las principales variables climáticas en el desarrollo de F. eriobotryae, desarrollándose ecuaciones matemáticas que modelicen esta relación. Por otro lado, se va a llevar a cabo un modelo epidemiológico para el moteado del níspero capaz de predecir, en función de las principales variables climáticas el riesgo de infección. Además, se realizará un estudio del control de la enfermedad que comprenderá, por un lado, la evaluación in vitro y en planta de la efectividad de las principales materias activas utilizadas para el control del moteado del níspero, y por otro la evaluación del grado de resistencia de una colección de aislados de F. eriobotryae a DMI y Metil-Tiofanato y la caracterización molecular de la misma.González Domínguez, E. (2014). Biology, epidemiology and control of Fusicladium eriobotryae, causal agent of loquat scab [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/38715
TESIS
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Ganu, Shreerang. "High frequency electric machine models for the evaluation of operational impacts in integrated drives." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/3628.
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A high frequency physical phase variable electric machine model was developed using FE analysis. The model was implemented in a machine drive environment with hardware-in-the-loop. The novelty of the proposed model is that it is derived based on the actual geometrical and other physical information of the motor, considering each individual turn in the winding. This is the first attempt to develop such a model to obtain high frequency machine parameters without resorting to expensive experimental procedures currently in use.
The model was used in a dynamic simulation environment to predict inverter-motor interaction. This includes motor terminal overvoltage, current spikes, as well as switching effects. In addition, a complete drive model was developed for electromagnetic interference (EMI) analysis and evaluation. This consists of the lumped parameter models of different system components, such as cable, inverter, and motor. The lumped parameter models enable faster simulations. The results obtained were verified by experimental measurements and excellent agreements were obtained.
A change in the winding arrangement and its influence on the motor high frequency behavior has also been investigated. This was shown to have a little effect on the parameter values and in the motor high frequency behavior for equal number of turns.
An accurate prediction of overvoltage and EMI in the design stages of the drive system would reduce the time required for the design modifications as well as for the evaluation of EMC compliance issues. The model can be utilized in the design optimization and insulation selection for motors. Use of this procedure could prove economical, as it would help designers develop and test new motor designs for the evaluation of operational impacts in various motor drive applications.
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Marek, Lydia I. "A multi-modal evaluation of an integrated treatment program for college women with eating problems." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-08272007-163615/.
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Killer, Bastian [Verfasser], and A. [Akademischer Betreuer] Albers. "KVP-Kooperation in der Fahrzeugentwicklung: Bewertung und erfolgreiche Umsetzung von OEM-internen Verbesserungen bei anderen OEMs auf Basis des Integrierten Produktenststehungs-Modells – iPeM = CIP-cooperation in vehicle development: Evaluation and successful implementation of local improvement contents at other OEMs on the basis of the integrated product engineering model – iPeM / Bastian Killer ; Betreuer: A. Albers." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1235072517/34.
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Lamprianidou, Fani. "Development of a model for evaluating and optimizing the performance of integrated multitrophic aquaculture (IMTA) systems." Thesis, University of Stirling, 2015. http://hdl.handle.net/1893/22916.
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Earth’s population is expected to reach 9 billion by 2050. Ensuring food security for the growing world population is one of today’s society’s major challenges and responsibilities. Aquatic products have the potential to contribute significantly in the growing population’s dietary requirements. Since increasing the pressure on most natural fish stocks is now widely agreed not to be an option, the aquaculture sector needs to grow. The challenge is to increase aquaculture production without depleting natural resources or damaging the environment but also in a financially sustainable way. Integrated Multitrophic Aquaculture (IMTA) is one method of sustainable aquatic production. Integrating bioremediatory organisms that extract particulate organic matter or dissolved inorganic nutrients with monocultures of fed species has the potential of reducing the particulate and soluble waste loads from effluents, whilst producing a low-input protein source that may also increase the farm income. IMTA is a viable solution for mitigating the environmental impact of waste released from fish farms. The fish waste is exploited as a food source for lower trophic, extractive organisms giving an added value to the investment in feed. Studies up to now have shown that under experimental conditions as well as in small-scale commercial studies, various filter-feeding, deposit-feeding and grazing species can ingest fish waste particles. The aim now is to achieve IMTA optimization, where extractive organisms can ingest most of the finfish waste food and excretions. Any such design is likely to be complex incorporating a multidisciplinary approach, and therefore to date a reason why most studies have failed to prove the environmental and economic benefits of IMTA. Consequently, the aim of this study is to develop ways of selecting an ideal combination of species for a specific locality, manage the cultures in a way that ensures the maximum nutrient recycling feasible per unit of area; and ensure high growth rate of the extractive organisms while being financially beneficial. The approach taken was a combination of investigative literature reviews, computer modelling work and small-scale growth trials to determine the relative growth of extractive organisms fed fishfeed and waste, followed by the development of a systems-based model of interaction and growth efficiency for combinations of organisms within an IMTA system. This study starts by investigating, with small-scale laboratory experiments, the potential of two organic extractive species, the lugworm, Arenicola marina and the sea urchin, Psammechinus miliaris, as organic extractive components of IMTA systems. Their ability to consume and assimilate salmon faeces was evaluated as well as their remediation efficiency. This was done by comparing the carbon, nitrogen and phosphorus content of the pellet-faeces mixture to that of the sea urchin faeces and sea urchin gonad content. Their growth, gonadosomatic index (GSI) (for the sea urchins), tissue carbon, nitrogen and phosphorous content were compared between seaweed diets and a diet consisting of a mixture of salmon faeces and feed pellets. The results showed statistically significant gonad carbon content for the sea urchins fed with faeces. Similarly, statistically significant higher phosphorous content was found in the tissues of the lugworms fed with the mixture of salmon faeces and pellets than in the lugworms of the other two groups. The subsequent and main phase of this study was the development of a model for optimising IMTA performance. The modelling process included model development, run, optimization and risk assessment. The IMTA model developed consisted of Atlantic salmon Salmo salar, the sea urchin Paracentrotus lividus and the macroalgae Ulva sp. It simulates the growth as well as the uptake and release of nitrogen by these organisms under environmental conditions of a hypothetical site on the west coast of Scotland. The aim of the model was to maximize the potential of IMTA in terms of productivity and to reduce the amount of nutrients that are released in the environment, and thus to contribute towards a more sustainable and productive form of aquaculture. The IMTA model developed can be re-parameterised to simulate the growth and nutrient uptake of different species and the growth and nutrient uptake under different environmental conditions. This capacity of the model was used in order to do a comparative study of the nitrogen bioremediation potential of three different invertebrate species, cultivated as part of an IMTA. These species were the lugworm (Arenicola marina), the blue mussel (Mytilus edulis) and the purple sea urchin (Paracentrotus lividus). The results of this comparative study showed that weight for weight, M. edulis is more efficient in removing POM than P. lividus that is in turn better than A. marina with regard to the amount of nitrogen they can assimilate. But in terms of cultivation area required for the production of the same total biomass, P. lividus was better at removing POM followed by M. edulis and then by A. marina.
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Filho, José Eduardo Chiarelli Bueno. "Multifractal traffic generator modeled at the transaction level for integrates systems performance evaluation." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-28062017-114833/.
Full textAbstract:
The present work aims to provide a contribution to improve the efficiency the design flow of integrated systems, focusing, specifically, on the performance evaluation of its communication structures. The use of Transaction Level Modeling (TLM) is proposed, in order to take advantage of the reduction of design effort and time. Within the performance evaluation approaches, the utilization of traffic generators instead of full system simulations started to be adopted due to its higher time efficiency. Initial works on on-chip traffic generation focused on Poisson processes and classic Markovian models, which are unable to capture Long Range Dependence (LRD). This fact led to the adoption of fractal/self-similar models. Later advancements have shown that the traffic produced in multiprocessed systems can show higher degrees of complexity, what can be attributed to the presence multifractal characteristics. In this work, a methodology to evaluate the on-chip traffic and to the development of a transaction level traffic generator is proposed. The main contributions of this work are a detailed analysis of traffic time series obtained by TLM simulations and the study of the effects of the traffic generator on these simulations, concerning, mainly, the speedup-accuracy trade-off. The proposed analysis follow the multifractal paradigm, allowing system developers to (1) understand the statistical nature of on-chip traffic, (2) to obtain accurate representations of this traffic and (3) to build traffic generators that mimic processing elements realistically. Another contribution of this work is a comparison of the performance, considering the accuracy of the obtained synthetic traffic time series, between monofractal and multifractal models. All of the mentioned contributions were grouped throughout the detailed methodology presented on the present document, for which experiments were carried out.O presente trabalho visa oferecer uma contribuição para o aumentar a eficiência do fluxo de projeto de sistemas integrados, focando, especificamente, na avaliação do desempenho de suas estruturas de comunicação. É proposta a utilização de simulações com modelos no nível de transações (TLM), com o objetivo de se obter vantagens da redução de esforço e tempo de projeto oferecidos por esta abordagem. Dentro das propostas de análise de desempenho, a utilização de geradores de tráfego ao invés simulações de sistema completo tem sido adotada devido a sua maior eficiência no tempo. Trabalhos iniciais na geração de tráfego intrachip focaram-se em processos de Poisson e em modelos de Markov clássicos, os quais não capturam Dependência de Longa Duração (LRD). Este fato levou a adoção de modelos fractais/auto-similares. Avanços posteriores mostraram que o tráfego produzido pelos elementos de sistemas multiprocessados podem apresentar maior grau de complexidade, que pode ser atribuída à presença de características multifractais. Neste trabalho, é proposta uma metodologia para a avaliação de tráfego intrachip para o desenvolvimento de um gerador de tráfego TLM. As principais contribuições deste trabalho são uma análise detalhada das séries temporais de tráfego obtidas nas simulações TLM e o estudo dos efeitos que o gerador de tráfego exerce sobre estas simulações, se concentrando, principalmente, na relação entre precisão e aceleração da simulação. As análises propostas se baseiam no paradigma multifractal, o qual permite (1) um maior entendimento da natureza estatística do tráfego pelos desenvolvedores de sistemas, (2) a obtenção de uma representação precisa deste tráfego e (3) a construção de geradores de tráfego que substituam elementos processantes de maneira realista. Outra contribuição deste trabalho é a comparação do desempenho, no que concerne a precisão das séries de tráfego sintéticas obtidas, de modelos monofractais e multifractais. Todas as contribuições mencionadas foram agrupadas na metodologia detalhada, apresentada no presente documento, sobre a qual experimentos foram realizados.
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Torre, Bianca Maria. "Evaluating metal toxicity in contaminated sediments in the South of Spain." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/12206/.
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Coastal zones are ecologically important areas subject to heavy anthropogenic pressures such as urbanization, fishing, commercial transports, as well as industrial and agriculture activities. In this context, Huelva, in the south of Spain, is a polluted area due to these reasons. In order to evaluate the consequences of anthropogenic impacts in the coastal area of Huelva, sediments from three different sites (Bay of Cádiz, Muelle de Capesa and Mazagòn) were assessed using an integrated model. This methodology integrates sediment physical-chemical parameters and biological responses in test organisms. Metal concentrations (Cr, Cu, Fe, Mn, Ni, Pb, Zn) and organic matter content were measured as physical-chemical parameters. Biological responses were assessed using three bioassays in two marine species: Mortality for Ampelisca brevicornis and Fertilization and Larval development for Paracentrotus lividus. The test organisms were exposed under two different routes of exposure (whole sediment or elutriate). Acute effects associated with the presence of metals (Cr, Cu, Fe, Mn, Ni, Pb, Zn) were observed and resulted correlated with the abnormal fertilization and larval development of echinoderms exposed to the sediments. The results here obtained were useful to confirm that the high level of metals contamination found in Huelva area, when compared to the control site (Bay of Cádiz), is likely to pose adverse effects on marine resident biota.
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Beauchet, Sandra. "Evaluation multicritère d'itinéraires techniques viticoles associant l'évaluation environnementale par Analyse du Cycle de Vie avec l'évaluation de la qualité du raisin. : Contribution au choix des pratiques pour une amélioration des itinéraires techniques viticoles." Electronic Thesis or Diss., Angers, 2016. http://www.theses.fr/2016ANGE0078.
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La production du raisin à l’origine de vins AOC (Appellation d’Origine Contrôlée) est soumise à des cahiers de charges imposant des exigences en termes de rendement, de qualité des produits et de pratiques. En plus de ces exigences, le viticulteur doit désormais faire évoluer ses itinéraires techniques viticoles pour en améliorer les performances environnementales. Or, définir des lignes directrices d’action pour une amélioration des pratiques viticoles en s'appuyant sur les évaluations environnementales et de qualité du raisin est complexe tant ces évaluations fournissent un nombre important d'indicateurs. L’objectif de la thèse est la construction d’une méthode d’évaluation prenant en compte en parallèle l’évaluation de la performance environnementale des itinéraires techniques viticoles avec la qualité du raisin et permettant d’aider le viticulteur et son conseiller à identifier les pratiques assurant le meilleur compromis entre « performance environnementale » et « qualité de production ». Cette méthode permet d’analyser un itinéraire technique viticole mais aussi de comparer ce dernier à d’autres. Cette méthode a été développée et testée à l’aide de cinq itinéraires techniques viticoles aux pratiques différenciées sur le cépage Chenin blanc en moyenne vallée de la Loire pendant deux années aux climats contrastés. Les travaux ont permis de (i) faire une adaptation du calcul d’Analyse du Cycle de Vie (ACV) spécifique au système de production viticole, (ii) montrer l’importance de la variabilité interannuelle dans les résultats d’évaluation environnementale par ACV. Les travaux ont aussi abouti à l’élaboration d’un modèle explicatif de la qualité du raisin à partir des pratiques viticoles et des facteurs pédoclimatiques permettant d’étudier l’incidence potentielle d’un changement de pratiques sur les critères d’évaluation de la qualité du raisin. La construction de la méthode multicritères CONTRA-QUALENVIC pour la viticulture, principale issue de ce travail, comporte (i) la construction de règles de décision et de fonctions mathématiques pour y répondre et (ii) des réunions d’experts pour caractériser les critères à agréger et les pondérer. La méthode CONTRA-QUALENVIC a été éprouvée en la comparant à d’autres méthodes. Pour conclure, la méthode CONTRA-QUALENVIC est une méthode pertinente pour l’aide à la décision dans le cadre d’une amélioration continue des pratiques viticoles vers un meilleur respect de l’environnement tout en préservant la qualité du raisinGrape production from PDO wines (Protected Designation of Origin) is subjected to tender specifications, imposing requirements in terms of performance, as well as practices and products quality. In addition to these requirements, the winemaker must now make its viticultural technical management routes evolve, to improve its environmental performances. But, defining actions guidelines for the improvement of viticultural practices based on environmental assessments and grape qualityis very complex, since each one of these assessments provide a significant number of indicators. The aim of the thesis is to construct an evaluation method that takes into consideration both evaluating the environmental performance of viticultural technical management routes with grape quality and assisting the winemaker and advisor to identify practices to ensure the best compromise between "environmental performance" and " product quality". This method allows to analyze a technical management route as well as to compare it to others. This method was developed and tested on five technical management routes with differentiated practices, on the Chenin Blanc grape variety in the middle Loire Valley, for two years with contrasted climates.The study helped (i) analyzing the Life Cycle Assessment (LCA) results specifically for viticulture, (ii) showing the importance of interannual variability in the results of environmental assessment by LCA. The work also led to the development of a model to explain the grapes quality linked with viticultural practices, and soil and climate factors, to study the potential impact of a practice change, on the grape quality evaluation. The CONTRA-QUALENVIC multi-criteria method construction for viticulture is the main outcome of this study, and includes (i) the construction of decision rules and mathematical functions to meet them, and (ii) experts’ meetings to characterize the criteria to aggregate and weight. The CONTRA-QUALENVIC method has been tested by comparing it to other methods.To conclude, the CONTRA-QUALENVIC method is an effective method for decision support as part of a continuous improvement of viticultural practices towards a better respect of the environment, while maintaining the grape quality
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Yuan, Yangyang. "Considerations affecting the evaluations of the Ohio governor in the 2002 gubernatorial election an integrated model of priming and reasoning chain /." Columbus, Ohio : Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1072280616.
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Thesis (Ph. D.)--Ohio State University, 2004.Title from first page of PDF file. Document formatted into pages; contains xii, 119 p.; also includes graphics. Includes abstract and vita. Advisor: Gerald Kosicki, School of Journalism and Communication. Includes bibliographical references (p. 112-119).
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Alcantara, Paulo Guilherme de França. "Um modelo fuzzy-gta-dematel para a avaliação integrada do nível de implementação da produção enxuta." Universidade Federal da Paraíba, 2017. http://tede.biblioteca.ufpb.br:8080/handle/tede/9938.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Lean Production (LP) could be defined as an integrated sociotechnical system with a multidimensional approach that includes management principles and practices, whose main objective is to reduce costs by eliminating waste. The success of LP in Japan and Western has led many organizations to try to implement it. However, some factors led to the failure of its implementation in many companies. When analyzing these factors, it was verified that these companies disregarded two facts: the existence of guiding principles for execution of lean practices and the continuous and synergistic interaction among such practices. Given this context, it was necessary to propose a model that would evaluate, in an integrated way, the level of LP implementation in companies. Thereunto, it was carried out a review about the articles concern LP assessment considering lean practices, in order to understand how evaluations were done, and which quantitative tools were used and, based on this perception, list the needed requirements to develop the model. Thereafter, this study proposed a fuzzy-GTA-DEMATEL reference model for LP assessment. It was composed of 4 factors and 20 sub-factors used in literature. In order to test its applicability, a case study was carried out at an organisation from automotive sector to evaluate the productive process, as well as applying Delphi with 7 LP specialists to evaluate the interactions between the elements. The model showed that studied company presented a high level of LP implementation. Nevertheless, it also pointed out that the company could make improvements in Process management (PM) factor to leverage the LP in its process, specifically in the sub-factors Standardized operations (S21) and Multifunctional workers (S22). Therefore, it was concluded that referential model is relevant and appropriate to assess the level of LP implementation in addition to identifying priorities for improvement. The model also contributed to diagnosis of the current LM stage in a company, in addition to identifying improvement priorities. Finally, the structure of model is considered a contribution, since the adopting company can use its own factors and sub-factors with same effectiveness.
A Produção Enxuta (PE) pode ser definida como um sistema sociotécnico integrado de abordagem multidimensional que compreende princípios e práticas, cujo principal objetivo é a redução de custos por meio da eliminação de desperdícios. O sucesso da PE no Japão e no Ocidente levou muitas organizações a tentar implantá-la. Porém, alguns fatores levaram ao fracasso de sua implantação em muitas empresas. Ao analisar estes fatores, constatou-se que essas empresas desconsideraram dois fatos: a presença de princípios norteadores para a execução das práticas enxutas e a interação contínua e sinérgica entre tais práticas. Diante desse contexto surgiu a necessidade de propor um modelo que avaliasse, de modo integrado, o nível de implementação da PE nas empresas. Para isso, primeiramente realizou-se um levantamento sobre os artigos que avaliaram a PE considerando as práticas enxutas, de modo a entender como foram feitas as avaliações e quais ferramentas quantitativas foram utilizadas e, com base nesta percepção, elencar os requisitos necessários para desenvolver o modelo. Após tal verificação, esta pesquisa propôs um modelo referencial fuzzy-GTA-DEMATEL para avaliação da PE, composto por 4 fatores e 20 subfatores utilizados na literatura. Para testar sua aplicabilidade, realizou-se um estudo de caso em uma montadora do setor automotivo para avaliar o sistema produtivo, além de utilização do Delphi com 7 especialistas em PE para avaliar as interações entre os elementos. A aplicação do modelo mostrou que a empresa estudada apresentou um forte nível de implementação da PE. Porém, ele também apontou que, a empresa poderia realizar melhorias no fator Gestão de Processos (GP) para alavancar a PE no seu processo produtivo, especificamente nos subfatores Padronização das operações (S21) e Trabalhadores multifuncionais (S22). Desse modo, o modelo referencial é pertinente e adequado para avaliar o nível de implementação da PE de maneira integrada. O modelo também contribuiu para o diagnóstico do estágio atual da PE em uma empresa, além de identificar as prioridades de melhoria. Por fim, a estrutura do modelo configura-se como contribuição, visto que a empresa adotante pode utilizar seus próprios fatores e subfatores com a mesma eficácia.
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Rabaa'i, Ahmad A. "Evaluating the success of large-scale, integrated information systems through the lens of IS-impact and IS-support." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/53179/1/Ahmad_Rabaa%27i_Thesis.pdf.
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This study proceeds from a central interest in the importance of systematically evaluating operational large-scale integrated information systems (IS) in organisations. The study is conducted within the IS-Impact Research Track at Queensland University of Technology (QUT). The goal of the IS-Impact Track is, "to develop the most widely employed model for benchmarking information systems in organizations for the joint benefit of both research and practice" (Gable et al, 2009). The track espouses programmatic research having the principles of incrementalism, tenacity, holism and generalisability through replication and extension research strategies. Track efforts have yielded the bicameral IS-Impact measurement model; the ‘impact’ half includes Organisational-Impact and Individual-Impact dimensions; the ‘quality’ half includes System-Quality and Information-Quality dimensions. Akin to Gregor’s (2006) analytic theory, the ISImpact model is conceptualised as a formative, multidimensional index and is defined as "a measure at a point in time, of the stream of net benefits from the IS, to date and anticipated, as perceived by all key-user-groups" (Gable et al., 2008, p: 381).
The study adopts the IS-Impact model (Gable, et al., 2008) as its core theory base. Prior work within the IS-Impact track has been consciously constrained to Financial IS for their homogeneity. This study adopts a context-extension strategy (Berthon et al., 2002) with the aim "to further validate and extend the IS-Impact measurement model in a new context - i.e. a different IS - Human Resources (HR)". The overarching research question is: "How can the impacts of large-scale integrated HR applications be effectively and efficiently benchmarked?" This managerial question (Cooper & Emory, 1995) decomposes into two more specific research questions – In the new HR context: (RQ1): "Is the IS-Impact model complete?" (RQ2): "Is the ISImpact model valid as a 1st-order formative, 2nd-order formative multidimensional construct?"
The study adhered to the two-phase approach of Gable et al. (2008) to hypothesise and validate a measurement model. The initial ‘exploratory phase’ employed a zero base qualitative approach to re-instantiating the IS-Impact model in the HR context. The subsequent ‘confirmatory phase’ sought to validate the resultant hypothesised measurement model against newly gathered quantitative data. The unit of analysis for the study is the application, ‘ALESCO’, an integrated large-scale HR application implemented at Queensland University of Technology (QUT), a large Australian university (with approximately 40,000 students and 5000 staff). Target respondents of both study phases were ALESCO key-user-groups: strategic users, management users, operational users and technical users, who directly use ALESCO or its outputs.
An open-ended, qualitative survey was employed in the exploratory phase, with the objective of exploring the completeness and applicability of the IS-Impact model’s dimensions and measures in the new context, and to conceptualise any resultant model changes to be operationalised in the confirmatory phase. Responses from 134 ALESCO users to the main survey question, "What do you consider have been the impacts of the ALESCO (HR) system in your division/department since its implementation?" were decomposed into 425 ‘impact citations.’ Citation mapping using a deductive (top-down) content analysis approach instantiated all dimensions and measures of the IS-Impact model, evidencing its content validity in the new context.
Seeking to probe additional (perhaps negative) impacts; the survey included the additional open question "In your opinion, what can be done better to improve the ALESCO (HR) system?" Responses to this question decomposed into a further 107 citations which in the main did not map to IS-Impact, but rather coalesced around the concept of IS-Support. Deductively drawing from relevant literature, and working inductively from the unmapped citations, the new ‘IS-Support’ construct, including the four formative dimensions (i) training, (ii) documentation, (iii) assistance, and (iv) authorisation (each having reflective measures), was defined as: "a measure at a point in time, of the support, the [HR] information system key-user groups receive to increase their capabilities in utilising the system." Thus, a further goal of the study became validation of the IS-Support construct, suggesting the research question (RQ3): "Is IS-Support valid as a 1st-order reflective, 2nd-order formative multidimensional construct?"
With the aim of validating IS-Impact within its nomological net (identification through structural relations), as in prior work, Satisfaction was hypothesised as its immediate consequence. The IS-Support construct having derived from a question intended to probe IS-Impacts, too was hypothesised as antecedent to Satisfaction, thereby suggesting the research question (RQ4): "What is the relative contribution of IS-Impact and IS-Support to Satisfaction?"
With the goal of testing the above research questions, IS-Impact, IS-Support and Satisfaction were operationalised in a quantitative survey instrument. Partial least squares (PLS) structural equation modelling employing 221 valid responses largely evidenced the validity of the commencing IS-Impact model in the HR context. ISSupport too was validated as operationalised (including 11 reflective measures of its 4 formative dimensions). IS-Support alone explained 36% of Satisfaction; IS-Impact alone 70%; in combination both explaining 71% with virtually all influence of ISSupport subsumed by IS-Impact.
Key study contributions to research include: (1) validation of IS-Impact in the HR context, (2) validation of a newly conceptualised IS-Support construct as important antecedent of Satisfaction, and (3) validation of the redundancy of IS-Support when gauging IS-Impact. The study also makes valuable contributions to practice, the research track and the sponsoring organisation.
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Zabanoot, Zaid Ahmed Said. "Modelling and Analysis of Resource Management Schemes in Wireless Networks. Analytical Models and Performance Evaluation of Handoff Schemes and Resource Re-Allocation in Homogeneous and Heterogeneous Wireless Cellular Networks." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5383.
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Over recent years, wireless communication systems have been experiencing a dramatic and continuous growth in the number of subscribers, thus placing extra demands on system capacity. At the same time, keeping Quality of Service (QoS) at an acceptable level is a critical concern and a challenge to the wireless network designer. In this sense, performance analysis must be the first step in designing or improving a network. Thus, powerful mathematical tools for analysing most of the performance metrics in the network are required. A good modelling and analysis of the wireless cellular networks will lead to a high level of QoS. In this thesis, different analytical models of various handoff schemes and resource re-allocation in homogeneous and heterogeneous wireless cellular networks are developed and investigated. The sustained increase in users and the request for advanced services are some of the key motivations for considering the designing of Hierarchical Cellular Networks (HCN). In this type of system, calls can be blocked in a microcell flow over to an overlay macrocell. Microcells in the HCN can be replaced by WLANs as this can provide high bandwidth and its users have limited mobility features. Efficient sharing of resources between wireless cellular networks and WLANs will improve the capacity as well as QoS metrics. This thesis first presents an analytical model for priority handoff mechanisms, where new calls and handoff calls are captured by two different traffic arrival processes, respectively. Using this analytical model, the optimised number of channels assigned to II handover calls, with the aim of minimising the drop probability under given network scenarios, has been investigated. Also, an analytical model of a network containing two cells has been developed to measure the different performance parameters for each of the cells in the network, as well as altogether as one network system. Secondly, a new solution is proposed to manage the bandwidth and re-allocate it in a proper way to maintain the QoS for all types of calls. Thirdly, performance models for microcells and macrocells in hierarchical cellular networks have been developed by using a combination of different handoff schemes. Finally, the microcell in HCN is replaced by WLANs and a prioritised vertical handoff scheme in an integrated UMTS/WLAN network has been developed. Simulation experiments have been conducted to validate the accuracy of these analytical models. The models have then been used to investigate the performance of the networks under different scenarios.
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Rojas, Ramirez Jorge. "Etude des modes de marche des systèmes automatisés de production pour la définition des stratégies de conduite." Valenciennes, 1995. https://ged.uphf.fr/nuxeo/site/esupversions/03812cc0-768c-417f-8fe3-9769898cd48e.
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Les systèmes automatisés de production, ayant acquis des performances importantes en fonctionnement normal, doivent aussi être réactifs face aux perturbations de la fabrication. Une analyse est réalisée sur ces systèmes pour la proposition de stratégies d'exploitation utilisant le potentiel des alternatives de configuration pour l'exécution de la fabrication. Pour apporter des solutions a ce problèmes, divers critères existent, allant de l'intervention humaine aux réponses automatisées. Prenant en compte l'organisation hiérarchique du système, la réaction est entreprise au niveau de la conduite pour le cas des défaillances des ressources. Les configurations alternatives possibles du système représentent des modes dégradés de fonctionnement, comportant des performances variées, qui doivent être évaluées pour la prise de décision. Un modèle des modes de marche est défini pour la conduite du système, comme outil d'assistance à sa réactivité. Les alternatives comprennent la reprise après réparation, le fonctionnement dégradé des ressources et le réordonnancement des opérations. La solution pour la reprise de la fabrication est suggérée à travers une démarche qui comprend les étapes de génération, d'évaluation, de vérification et de spécification des alternatives. La contribution de cette étude réside en la caractérisation des modes dégradés de fonctionnement, par une réaction rapide basée sur une évaluation des temps de fabrication. Une méthode de réaction est proposée, intégrant les stratégies de solution en fonction de l'urgence et du respect des contraintes de production. La décision prend en compte les consignes de la gestion de production, l'état réel des ressources et les données de la maintenance. La méthode comprend des stratégies à court terme, utilisant le mode dégradé ou la réparation de la ressource défaillante et des stratégies à moyen terme par reconfiguration du système, évaluées par le calcul des durées de fabrication. Une application sur des exemples permet l'évaluation de la méthode développée.
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Al, Salem Aqeel Asaad. "An Integrated Model for Supplier Quality Evaluation." Thesis, 2012. http://spectrum.library.concordia.ca/974017/4/Al%2DSalem_MASc_S2012.pdf.
Full textAbstract:
An Integrated Model for Supplier Quality Evaluation
Aqeel Asaad Al Salem
Supplier quality evaluation is a multi-criteria decision-making (MCDM) problem that involves multiple, heterogeneous criteria of different weights. The literature addresses quality, delivery, technology, value and service as the five most common criteria used for supplier quality evaluation. In this thesis, we have considered the most important criteria for evaluating the quality of suppliers based on a review of the literature and observation in practice. They include both qualitative and quantitative criteria to reflect the real attributes of the supplier in question, and are applied in a supplier quality evaluation performed for a large data set.
We propose a three-stage model for performing supplier quality evaluation. In the first stage, we identify the evaluation criteria and assign a weight to each criterion. The analytic hierarchy process (AHP) technique is used in this stage. In the second stage, we address the large size of suppliers’ datasets and present a cluster-analysis-based approach to obtain manageable supplier datasets for evaluation purposes. In the third stage, we apply the VIKOR method to evaluate supplier quality in the clusters obtained from the previous stage. A numerical application is provided to demonstrate the proposed approach.
The strength of the proposed model lies in the integrated application of the three techniques, in which each technique is best suited for its respective problem. The model’s other chief advantage
is its ability to deal efficiently with the challenge of evaluating large numbers of suppliers and the data pertaining to their attributes.
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Nicholas, Grant Deon. "An integrated risk evaluation model for mineral deposits." Thesis, 2014. http://hdl.handle.net/2440/86234.
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The core asset of most mining companies is its mineral resources and reserves. The company produces ore from its reserves, which is a subset of its mineral resources associated with varying levels of geoscientific confidence and uncertainty. One of the key evaluation challenges is to distil technical complexity into a financial model that is usually designed to focus only on one or two key valuation indicators, such as net present value (NPV) or internal rate of return (IRR). The driver behind this research was whether conventional evaluation techniques for mineral projects can evaluate accurately both the spatial and temporal characteristics of project risks in financial terms, due to their inherent nature to understate the true variance, and under-value or over-value the actual NPV. How can conventional evaluation methods be compared to an innovative, integrated evaluation technique that quantifies the non-linear impacts of spatial resource variables on production constraints in financial terms, measured at the appropriate temporal scale? To answer these questions, this research focused on developing an innovative risk evaluation methodology for two different diamond deposits and one gold deposit to incorporate spatial, non-spatial and financial data across the evaluation pipeline. The author developed an integrated evaluation modelling (IEM) framework based on a unique bottom-up methodology that follows every estimation block through the mining and processing value chain, i.e., it accurately captures the spatial variability of all relevant value chain variables in the ground and their correlated impacts on production constraints such as grade, density and processing characteristics. This variability is propagated through the processing value chain at a mining block (or selective mining unit, “SMU”) scale. The IEM approach revealed differences in NPV between a ‘bottom-up’ (or Local) evaluation method and a ‘top-down’ (or Global) evaluation method – see Figure 1. While the actual NPV for the virtual ore body (VBod) was CAD 2.1 million, the figure shows that the local evaluation method (bottom-up) more closely approximated the actual NPV of the project than the global (top-down) evaluation method, which materially over-estimated the NPV. The author demonstrated that cash flow constituents derived from annual estimates in a top-down approach will not correctly reflect the asymmetries due to operational variability on a local, daily basis. The ‘bottom-up’ evaluation method represented a more accurate way of deriving annual cash flow estimates needed to make decisions on projects by accumulating the appropriate values from a bottom-up approach, i.e. daily, monthly, quarterly then derive annual estimates for NPV forecasts. The two main advantages of the IEM methodology are that firstly, it accurately reproduces the spatial resource characteristics of blocks at the appropriate temporal scale; and secondly, direct linkages are created between the resource–reserve–financial models within a single software environment. This allows multiple scenarios to be rapidly assessed for a mineral project and the cost/benefits of implementing risk mitigation strategies to be easily evaluated. This research also quantifies the financial impact of managerial flexibilities by evaluating selected hedging strategies that simultaneously consider production and economic uncertainties within an IEM framework. All modelled outputs are calculated in NPV terms using a modified DCF approach. The importance of linkages within an IEM framework is validated between unsystematic risks, with respect to key resource-to-reserve stochastic variables, and systematic risks considering the impact of foreign exchange rates. The author concludes that the greater the variability of key systematic and unsystematic variables, the more the mine has to consider flexibility in its mining and processing schedules and management hedging strategies; but the real costs of attaining that flexibility needs to be evaluated using an IEM framework. The confidence in a NPV estimate for complex mineral projects cannot easily be quantified using any closed-form analytical or mathematical solution. Complex, non-linear relationships between resources, reserves, financial and economic parameters requires a simulation model based on an IEM framework to provide a robust solution.Thesis (Ph.D.) -- University of Adelaide, School of Civil, Environmental and Mining Engineering, 2014
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Chung, Kuo-Cheng, and 鍾國章. "Risk Integrated Evaluation Model for New Product Development." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/22882743471126599351.
Full textAbstract:
博士國立東華大學
企業管理學系
103
In an era where global competitiveness gets fiercer every day, a successful project would bring a great deal of business to an organization. The study is to develop an integrated model consisting of P-FMEA and D-FMEA. The research method is using QFD to collect P-FMEA and D-FMEA risk and specify it into engineering specifications in the house of quality (HoQ). The integration of both can have extra benefits that not only to shorten the time from development to market but also enhance performance and flexibility if any new quest is generated during evaluation period. It also successfully feed backs the real quality to QFD from customer demonstration. Our case study demonstrates airplane manufacturing how to succeed in a new product demonstration industry assembly house by integrating QFD and FMEA. The model proposed in this study can provides a design model to the company's in-house FMEA. Through prior analysis, prevention and the practical test review, design a complete process management information to serve as basis for subsequent production or product transfer. Therefore, the results are attained through the case analysis. Design innovation: improvement in the reliability of the product. Process innovation: standardization in the new product development process and improvement in development efficiency. Integration innovation: improvement of the company's quality management standard and reduce returns.
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Liao, Kuo-Jen, and 廖國仁. "Development of an Integrated Logistics Performance Evaluation Model." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/99373950067282949123.
Full textAbstract:
碩士義守大學
工業工程與管理學系碩士班
94
In recent years, many businesses realize the difficulties of operating the business because of facing the diverse competition; therefore, managing the resource cost efficiency will be the major strategy for the business. This paper is focus on how the logistic companies input the fewer amounts of resources and get the max amount of benefit and assure that the business can operate in the appropriate price and suitable quantity. There are two main points in this paper. First, this paper will utilize the Activity based costing (ABC) to analyze the relationship between cost and its influence. The company can recognize the advantages and disadvantages of the cost in the price competition if using the ABC system. Second, this paper will apply the Data Envelopment Analysis (DEA). By using this strategy, the business can use different systems to evaluate the relative management efficiency of operation surface and cost surface. This strategy can help the logistic company to improve its operation management. This paper integrates the ABC and DEA strategies. With the integration of these two strategies, the business can get the precise cost and the information of how to improve the operation. In the meantime, it can assist the manager to either reallocate the excess resource or raise the insufficient resource in order to maximize the company benefit.