Dissertations / Theses: 'Cage systems'

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Chong, Hyun-Soon. "Explorations with Polycarbocyclic Cage Compounds." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc2218/.

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A variety of novel cage-functionalized pyridyl containing crown ethers have been prepared for use in selective alkali metal complexation studies. A highly preorganized, cage-functionalized cryptand also has been designed and has been synthesized for use as a selective Li+ complexant. The alkali metal picrate extraction profiles of these cage-functionalized crown ethers also have been studied. Novel cage-functionalized diazacrown ethers have been prepared for selective alkali metal complexation studies. Alkali metal picrate extraction experiments have been performed by using this new class of synthetic ionophores to investigate the effects of cage-annulation and the influence of N-pivot lariat sidearms upon their resulting complexation properties. Novel pyridyl containing calix[4]arene receptors were prepared. Analysis of their respective 1H NMR and 13C NMR spectra suggests that calix[4]arene moieties in the ligand occupy the cone conformation. The complexation properties of these host molecules were estimated by performing a series of alkali metal picrate extraction experiments. An optically active cage-functionalized crown ether which contains a binaphthyl moiety as the chiral unit was prepared. The ability of the resulting optically active crown ether to distinguish between enantiomers of guest ammonium ions (i.e., phenylethylamonium and phenylglycinate salts) in transport experiments was investigated. Hexacyclo[11.2.1.02,12.05,10.05,15.010,14]hexadeca-6,8-diene-4,11-dione was prepared from hexacyclo[7.4.2.01,9.03,7.04,14.06,15] pentadeca-10,12-diene-2,8-dione. Unanticipated but remarkable acid and base promoted rearrangements of this new cage dione to novel polycyclic systems were observed and subsequently were investigated. The structures of the new systems thereby obtained were determined unequivocally by application of X-ray crystallographic methods. It is noteworthy that the reactions reported herein each provide the corresponding rearranged product in high yield in a single synthetic step. Pi-facial and regioselectivity in the thermal Diels-Alder cycloaddition between hexacyclo[11.2.1.02,12.05,10.05,15.010,14]hexadeca-6,8-diene- 4,11-dione and ethyl propiolate have been explored. This reaction proceeds via stereospecific approach of the dienophile toward the syn face of the diene p -system. However, [4+2]cycloaddition proceeds with only modest proximal/distal regioselectivity. The structure of the minor reaction product was established unequivocally via application of X-ray crystallographic techniques.

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Hall, Martin Stephen. "Identification of motions and mooring loads in sea-cage systems." Thesis, Heriot-Watt University, 1991. http://hdl.handle.net/10399/838.

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Chen, Chao. "Self-assembly studies of hybrid nanoparticle-protein cage systems and icosahedral viruses." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3331353.

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Thesis (Ph.D.)--Indiana University, Dept. of Chemistry, 2008.
Title from PDF t.p. (viewed on Jul 27, 2009). Source: Dissertation Abstracts International, Volume: 69-11, Section: B, page: 6818. Adviser: Bogdan Dragnea.

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Kuiler, Ian Radcliffe. "Condition monitoring of squirrel cage induction generators in wind turbines." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2530.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2017.
Globally governments are faced with challenges in the energy sector which are exacerbated by uncertain financial markets and resource limitations. The over utilization of fossil fuels for electricity generation has had a profound impact on the climatic conditions on earth. Coal power stations release carbon dioxide (CO2) during the combustion process and studies show that concentrations have sharply risen in the atmosphere. Adverse environmental conditions like global warming exist as a result of high greenhouse gas (GHG) emissions in particular CO2. In 2015 Eskom constructed Sere Wind farm with a supply capability of 100 MW. Due to the lack of technical expertise and skills with regard to the new technology within Eskom, Siemens was offered a 5 year maintenance contract. Siemens also provides training on basic operation and maintenance (O&M) of the wind farm to Eskom staff. This excludes specialised training on Siemens Turbine Condition Monitoring (TCM) systems which is a critical part to develop optimum maintenance strategies. This shortage of specialised skills in the application of condition monitoring techniques within Eskom is a major concern. If the most cost effective maintenance strategies during the contract period are implemented, the long term plant health and design life of Sere wind farm will be reduced. There is a need to develop new condition monitoring techniques to complement or address the shortcomings of the existing systems. Developing these skills will increase the understanding of the technology and improve the operating and maintenance of Sere wind farm.

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Perez, Martinez Oscar. "GIS based models for optimisation of marine cage aquaculture in Tenerife, Canary Islands." Thesis, University of Stirling, 2002. http://hdl.handle.net/1893/21881.

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This study focused on the optimisation of offshore marine fish-cage farming in Tenerife, Canary Islands. The main objective was to select the most suitable sites for offshore cage culture. This is a key factor in any aquaculture operation, affecting both success and sustainability. Moreover, it can solve conflicts between different coastal activities, making a rational use of the coastal space. Site selection was achieved by using Geographical Information Systems (GIS) based models and related technology, such as satellite images and Global Positioning System (GPS), to support the decision-making process. Three different cage systems were selected and proposed for different areas around Tenerife. Finally, a particulate waste distribution model (uneaten feed and faeces) was developed, also using GIS, for future prediction of the dispersive nature of selected sites. This can reduce the number of sites previously identified as most suitable, by predicting possible environmental impacts on the benthos if aquaculture was to be developed on a specific site. The framework for spatial multi-criteria decision analysis used in this study began with a recognition and definition of the decision problem. Subsequently, 31 production functions (factors and constraints) were identified, defined and subdivided into 8 sub-models. These sub-models were then integrated into a GIS database in the form of thematic layers and later scored for standardization. At this stage, the database was verified by field sampling to establish the quality of data used. The decision maker's preferences were incorporated into the decision model by assigning weights of relative importance to the evaluation under consideration. These, together with the thematic layers, were integrated by using Multi-criteria Evaluation (MCE) and simple overlays to provide an overall assessment of possible alternatives. Finally, sensitivity analysis was performed to determine the model robustness. The integration, manipulations and presentation of the results by means of GIS-based models in this sequential and logical flow of steps proved to be very effective for helping the decision-making process of site selection in study. On the whole, this study revealed the usefulness of GIS as an aquaculture planning and management tool. Cage systems that can withstand harsh environments were found to be suitable for use over a broader area of Tenerife's coastline. Thus, the more robust self-tensioned cage (SeaStation®) could be used over a greater area than the weaker gravity cages (Corelsa®). From the 228 km2 of available area for siting cages in the coastal regions with depth of 50 m, the suitable area (sum of scores 6, 7 and 8) for siting SeaStation® cages was 61 km2, while the suitable area for SeaStation® and Corelsa® cages was 49 and 37 km2 respectively. Most of the variation between these three cage systems was found among the intermediate suitability scores. It was concluded that the biggest differences in suitable area among cage systems are between Corelsa® and SeaStation® systems, followed by differences between Corelsa® and OceanSpar® cages, and OceanSpar® and SeaStation® respectively. This variability was mostly located on the N and NNW of the island, where waves, both long and short-term, are higher.

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Pollock, Lindsay Jane. "Integration of aquaculture within irrigation systems : a poverty-focused approach." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/76.

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The potential for aquaculture to be integrated within a large-scale irrigation system taking a poverty-focused approach was investigated in the Mahaweli System H irrigation system of North Western Province, Sri Lanka. Using a livelihoods approach an initial situation appraisal identified the potential for aquaculture to be integrated within existing livelihoods activities. The appraisal revealed that decreasing returns from farming and fishing seasonality were major sources of household vulnerability. Using fish caught from the tank fishery, small-scale cage-based fattening of tilapia was developed with participants in an attempt to mitigate seasonal vulnerability caused by fishing seasonality. Participatory technology development was conducted with members of two communities within Mahaweli System H. Upon identifying resources and formulating a research agenda with participants, pilot trials were conducted by fisher-farmers in USG village and by a group of female cage operators in RAJ village. The study identified several constraints to sustainability of the culture system such as variable and low availability of small tilapia with which to stock cages, poor feed quality and latterly, competition for feed inputs. Despite their initial enthusiasm, women were particularly disadvantaged in this process as they were unable to catch their own fish with which to stock their cages and became dependent on men to assist them. The study showed that the cage-based fattening system was able to help meet emergency household expenses, although it was not efficient enough nor practiced on a large enough scale to contribute greatly to household security. In this manner, holding and fattening smaller tilapia is comparable with livestock holdings. Further development of cage design and feed administration improvements are needed to reduce production costs and improve the economic viability of the system.

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Lu, C. C. "Stress and fear responses of laying hens in cage, barn and free range systems /." [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16151.pdf.

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Navas, Juan Moreno. "Three-dimensional hydrodynamic models coupled with GIS-based neuro-fuzzy classification for assessing environmental vulnerability of marine cage aquaculture." Thesis, University of Stirling, 2010. http://hdl.handle.net/1893/2580.

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There is considerable opportunity to develop new modelling techniques within a Geographic Information Systems (GIS) framework for the development of sustainable marine cage culture. However, the spatial data sets are often uncertain and incomplete, therefore new spatial models employing “soft computing” methods such as fuzzy logic may be more suitable. The aim of this study is to develop a model using Neuro-fuzzy techniques in a 3D GIS (Arc View 3.2) to predict coastal environmental vulnerability for Atlantic salmon cage aquaculture. A 3D hydrodynamic model (3DMOHID) coupled to a particle-tracking model is applied to study the circulation patterns, dispersion processes and residence time in Mulroy Bay, Co. Donegal Ireland, an Irish fjard (shallow fjordic system), an area of restricted exchange, geometrically complicated with important aquaculture activities. The hydrodynamic model was calibrated and validated by comparison with sea surface and water flow measurements. The model provided spatial and temporal information on circulation, renewal time, helping to determine the influence of winds on circulation patterns and in particular the assessment of the hydrographic conditions with a strong influence on the management of fish cage culture. The particle-tracking model was used to study the transport and flushing processes. Instantaneous massive releases of particles from key boxes are modelled to analyse the ocean-fjord exchange characteristics and, by emulating discharge from finfish cages, to show the behaviour of waste in terms of water circulation and water exchange. In this study the results from the hydrodynamic model have been incorporated into GIS to provide an easy-to-use graphical user interface for 2D (maps), 3D and temporal visualization (animations), for interrogation of results. v Data on the physical environment and aquaculture suitability were derived from a 3- dimensional hydrodynamic model and GIS for incorporation into the final model framework and included mean and maximum current velocities, current flow quiescence time, water column stratification, sediment granulometry, particulate waste dispersion distance, oxygen depletion, water depth, coastal protection zones, and slope. The Neuro-fuzzy classification model NEFCLASS–J, was used to develop learning algorithms to create the structure (rule base) and the parameters (fuzzy sets) of a fuzzy classifier from a set of classified training data. A total of 42 training sites were sampled using stratified random sampling from the GIS raster data layers, and the vulnerability categories for each were manually classified into four categories based on the opinions of experts with field experience and specific knowledge of the environmental problems investigated. The final products, GIS/based Neuro Fuzzy maps were achieved by combining modeled and real environmental parameters relevant to marine fin fish Aquaculture. Environmental vulnerability models, based on Neuro-fuzzy techniques, showed sensitivity to the membership shapes of the fuzzy sets, the nature of the weightings applied to the model rules, and validation techniques used during the learning and validation process. The accuracy of the final classifier selected was R=85.71%, (estimated error value of ±16.5% from Cross Validation, N=10) with a Kappa coefficient of agreement of 81%. Unclassified cells in the whole spatial domain (of 1623 GIS cells) ranged from 0% to 24.18 %. A statistical comparison between vulnerability scores and a significant product of aquaculture waste (nitrogen concentrations in sediment under the salmon cages) showed that the final model gave a good correlation between predicted environmental vi vulnerability and sediment nitrogen levels, highlighting a number of areas with variable sensitivity to aquaculture. Further evaluation and analysis of the quality of the classification was achieved and the applicability of separability indexes was also studied. The inter-class separability estimations were performed on two different training data sets to assess the difficulty of the class separation problem under investigation. The Neuro-fuzzy classifier for a supervised and hard classification of coastal environmental vulnerability has demonstrated an ability to derive an accurate and reliable classification into areas of different levels of environmental vulnerability using a minimal number of training sets. The output will be an environmental spatial model for application in coastal areas intended to facilitate policy decision and to allow input into wider ranging spatial modelling projects, such as coastal zone management systems and effective environmental management of fish cage aquaculture.

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Dunn, Zelda. "Improved feed utilisation in cage aquaculture by use of machine vision." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2824.

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Thesis (MScEng (Process Engineering))--Stellenbosch University, 2008.
With the harvesting of fish and other aquatic organisms from natural waters having reached its upper limit, aquaculture is vital in providing for the ever increasing demand for fishery products (Boyd, 1999). Not surprisingly, aquaculture has seen considerable growth over the last decade or more. With the rising importance of aquaculture, there is an increased emphasis on cost and reducing of waste for environmental reasons. Therefore, attempts to automate or increase efficiency of feeding are constantly being explored. On an aquaculture unit approximately 60% of all costs are for feed; therefore high quality feeding management is essential for all fish farmers. The rainbow trout farm at Jonkershoek Aquaculture Research farm near Stellenbosch currently have a feeding management system which makes use of traditional hand feeding. Handfeeding is not considered optimal, as the feed intake or pellet loss is not closely monitored resulting in higher operating costs. Automation of aquaculture systems will allow the industry to produce closer to markets, improve environmental control, reduce catastrophic losses, minimize environmental regulation by reducing effluents, reduce production costs and improve product quality. The history of automated control in aquaculture has been brief; most of the systems have been custom-designed, personal computer systems. A very popular approach for an automated feeding system is to monitor waste pellets beneath the feeding zone of the fish, with a feedback loop that can switch off the feeder if this waste exceeds a predetermined threshold. Other approaches use hydroacoustics to monitor waste pellets or demand feeders have also been implemented. These approaches however are not considered optimal as automatic feeders do not necessarily ensure optimal feed intake. Social dominance using demand feeders does not allow even feeding distribution among all sizes of fish. In this project it was investigated whether an automated feeding system can be developed based on fish feeding behaviour. After facing problems with poor visibility at the Jonkershoek Aquaculture farm near Stellenbosch, video data were acquired from the Two Oceans Aquarium in Cape Town. Since it was a feasibility study, the focus was rather to investigate whether a predictive model could be generated for fish feeding behaviour in a more ideal environment which can form a foundation for further research. The well-established multivariate methods of principal components

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Taylor, Pollyanna Elizabeth. "An investigation into factors affecting perching and ranging behaviour of laying hens in non-cage systems." Thesis, Open University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402624.

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Corner, Richard Anthony. "Implications for the environment of using adaptive feeding systems in the cage culture of Atlantic salmon." Thesis, University of Stirling, 2004. http://hdl.handle.net/1893/26835.

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The use of adaptive feeding systems to deliver feed remotely to Atlantic salmon (Salmo salar) cages has the potential to improve the localised environment through a reduction in particulate waste. This can be achieved through improved growth and lower Feed Conversion Ratio (FCR). The aim of this project was to assess whether adaptive feeding systems confer any environmental benefit at salmon farms through by comparing two fish farm sites, one that uses a Computer Aided System (CAS) adaptive feeding system (AKVAsmart UK limited, Inverness, Scotland) (Portavaide fish farm) and one using hand feeding (Rubha Stillaig). This investigation comprised of 3 elements: 1) a comparative assessment of the quantity and nutrient composition of particulate waste material emanating from the cages; 2) collection of benthic samples plus a video survey along transects at each site including a reference station, with an analysis of differences in benthic fauna, sediment grain size and sediment nutrient composition; and 3) comparison of the distribution of waste under each feeding regime using a GIS-based modelling approach. Particulate waste was collected via sediment traps. Uneaten feed was caught in only 3 out of 184 separate collections and thus no estimate of feed loss for each feeding system could be made. Samples were analyzed for total solids (TS), faecal solids (FS), faecal carbon (FC), faecal nitrogen (FN) content and faecal sedimentation rate (FSR). The highest deposition occurred under the cages and decreased with increased distance from the cage centre. Maximal deposition of TS at Portavadie was higher than at Rubha Stillaig when feed was included, although average TS, FS, Fe and FN per tonne of production did not significantly vary between sites. Carbon sedimentation rate was analyzed using regression analysis and a General Linear Model Factorial ANOVA on faecal waste only and showed no significant differences between sites and, therefore, no difference between feeding methods . There were no differences observed in the diversity and abundance of benthic species under the two feeding systems. By the end of the production period all stations out to 25m from the cage edge were dominated by Capitella capitata at both sites, this species proving a useful indicator of the impact of nutrient deposition. The analysis suggested that Heteromastus filiformis and Corophium sp. provided useful indicators of the onset of nutrient enrichment. Measurement of carbon and nitrogen levels and particle size in sediment showed no difference between sites. Variations between sites in species abundance and diversity and sediment carbon and nitrogen levels reflected the different sediment conditions prevalent at the start of the sampling period. Univariate and multivariate analysis showed there was no difference in species diversity and abundance between the sites as a result of using adaptive feeding systems. Horizontal cage movement, measured at up to 10m, reduced the predicted settlement under the cage by 23% and 11 % for feed and faecal distribution respectively. There was no significant difference in the predicted settlement of waste particulates under adaptive and hand feeding. The GIS model prediction of carbon flux (g C m-2 15-days-1) was validated for faecal settlement using sediment trap data where predictions agreed well with observations from Portavadie fish farm, with an accuracy of ± 53.1 % when all stations were included, improving to ± 27.6% when deposition under the cage was excluded. Overall, the approaches used did not identify specific differences between sites that used adaptive feeding and hand feeding methods. The growth period using the adaptive feeding system was approximately nine weeks shorter than under hand feeding, however, which could be used constructively to increase the fallowing period whilst maintaining current levels of production. This would benefit the localised benthos by increasing the time available for recovery before further production takes place and thus the CAS Adaptive Feeding System could be used as part of a broader sustainable farming strategy for fish culture.

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Gumbo, Tichaona. "An economic analysis of the impact of removing organic waste from small scale cage aquaculture systems in irrigation dams in the Western Cape." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6775.

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Thesis (MScAgric (Agricultural Economics))--University of Stellenbosch, 2011.
ENGLISH ABSTRACT: The rising demand of fish due to population growth coupled by stagnation of fish supply from natural capture has led the world to turn to aquaculture to fill in the gap between fish supply and demand. Aquaculture has emerged as the only sustainable way of supplying the rising population with fish. However the rapid expansion of aquaculture has been met with growing concerns over its environmental effects especially waste produced from aquaculture. The net cage system that is currently being used by small scale trout farmers in the Western Cape is an open water based system where release of waste into the water bodies is inevitable and this put into question the long term sustainability of trout farming using net cages in irrigation dams in the Western Cape. This study sought to compare identified production techniques that can be used by aquaculture farmers to reduce accumulation of organic waste in irrigation dams. The proposed ‘clean’ production techniques include use of net cages fitted with Lift-up system, semi intensive floating tank system (SIFTS) and intergrated aquaculture systems. The study revealed that the intergrated aquaculture system is the most effective way of recovering waste that shows great potential of moving aquaculture towards long term sustainability as it fullfills sustainability dimensions such as ‘zero emission’, nutrient recycling and integrated production. Mechanical methods of recovering waste such as Lift-up system and SIFTS are also effective in recovering particulate waste but however dissolved nutrients are lost into the environment. The study went on further to investigate if economic, environmental and social benefits of recovering waste from irrigation dams outweigh the costs of recovering waste using different production techniques. Models of small scale aquaculture farms using the three identified production techniques were developed and compared with a modelled small scale net cage farm where there was no waste recovery. A comparative financial analysis of the modelled small scale trout farms using alternative production techniques carried out showed that trout production using any of the three alternative ‘clean’ production techniques is financially viable with the SIFTS production technique giving the farmer the highest returns, followed by the intergrated system, then the net cage with a Lift-up system and lastly the net cage system without waste recovery. The second part of the study used the contingent valuation method to estimate the environmental and social benefits of removing waste from dams. Households revealed that they were willing to pay (WTP) R40 on average annually to improve water quality from a state where eutrophication had occurred to a state suitable for irrigation and aquaculture. To improve water quality from a state suitable for irrigation to a state suitable for swimming, households were willing to pay R16.67 annually. If water was to be improved from a state suitable for irrigation to a level suitable for domestic purposes, average willingness to pay (WTP) was R26.17 annually. WTP indicate that besides financial benefits associated with using ‘clean’ production techniques there are environmental and social benefits that will arise to the farm community using water from the irrigation dams.
AFRIKAANSE OPSOMMING: Die stygende vraag na vis as gevolg van bevolkingsgroei, tesame met die stagnering van die aanbod van vis vanaf natuurlike vangste het daartoe aanleiding gegee dat die oë van die wêreld op akwakultuur gerig is om die gaping in die voorsiening van vis te vul. Akwakultuur het ontwikkel as die enigste volhoubare manier om aan die groeiende vraag na vis te voldoen. Die vinnige uitbreiding van akwakultuur het egter toenemende besorgdheid in die nadelige omgewingsimpak, veral ten opsigte van akwakultuurafval, tot gevolg gehad. Die nethokstelsel wat tans deur kleinskaalse forelboere in die Wes-Kaap in oop watergebaseerde sisteme gebruik word en die vrystelling van afval in die wateromgewings wat onafwendbaar is, plaas ’n vraagteken oor die langtermyn volhoubaarheid van die nethokstelsel forelboerdery in besproeiingsdamme in die Wes- Kaap. Die studie het ten doel gehad om geïdentifiseerde produksiestelsels wat deur akwakultuurboere gebruik kan word om die akkummulasie van organiese afval in besproeiingsdamme te verminder, te vergelyk. Die voorgestelde “skoon” produksietegnieke sluit in nethokke wat aan ’n opligstelsel gekoppel word, ‘n semi-intensiewe drywende tenk- stelsel (“SIFTS system” in Engels) en ‘n geïntegreerde akwakultuurstelsel. Met hierdie studie is bevind dat die geïntegreerde stelsel die mees effektiewe manier is om afval te herwin en toon potensiaal om akwakultuur op ’n vohoubare pad te plaas aangesien dit aan die volhoubaarheidsdimensies van geen emissie, voedingstofherwinning en geïntegreerde produksie voldoen. Meganiese metodes van afvalherwinning soos die nethokopligstelsel en die SIFTS-stelsel is effektief in die herwinning van vastestofdeeltjies, maar opgeloste voedingstowwe word steeds in die omgewing vrygestel. Die studie het voorts ten doel gehad om te bepaal of die ekonomiese, omgewings- en sosiale voordele om afval uit besproeiingsdamme te herwin, groter is as die herwinningskoste van die verskillende produksietegnieke. Modelle van kleinskaalse akwakultuurplase wat die drie geïdentifiseerde produksiestelsels gebruik, is ontwikkel en aangewend om te vergelyk met ’n nethokstelsel waar geen afvalherwinning gedoen word nie. ’n Vergelykende finansiële ontleding van die gemodelleerde kleinskaalse forelboerderye met die verskillende produksietegnieke is gedoen en daar is bevind dat enige een van die drie “skoon” stelsels finansieel lewensvatbaar is, met die SIFTS-stelsel wat die hoogste vergoeding aan die boer bied, gevolg deur die geïntegreerde stelsel, dan die nethokke aan ’n opligstelsel en dan die nethokstelsel sonder afvalherwinning. Die tweede deel van die studie het van die voorwaardelike (“contingent”) waardasiemetode gebruik gemaak om die omgewings- en sosiale voordele om afval uit besproeiingsdamme te verwyder, te bepaal. Huishoudings het aangetoon dat hulle bereid sou wees om tot R40 per jaar te betaal om die waterkwaliteit te verbeter vanaf ’n toestand waar eutrifikasie plaasgevind het na ’n toestand waar die water vir besproeiing en akwakultuur geskik sou wees. Om die waterkwaliteit vanaf ’n toestand geskik vir besproeiing te verander na ’n toestand geskik om in te swem, sou huishoudings bereid wees om R16.67 per jaar te betaal. Indien water vanaf ’n toestand geskik vir besproeiing verander sou word na ’n toestand geskik vir huishoudelike gebruik, sou huishoudings gewillig wees om jaarliks R26.17 te betaal. Die “gewilligheid om te betaal” dui aan dat daar bo en behalwe die finansiële voordele om van “skoon” produksietegnieke gebruik te maak, ook omgewings- en sosiale voordele vir die plaasgemeenskap bestaan met die gebruik van die water uit die besproeiingsdamme.

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Wolosik, Anthony Thomas. "Advancements in the Design and Development of CubeSat Attitude Determination and Control Testing at the Virginia Tech Space Systems Simulation Laboratory." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/84980.

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Among the various challenges involved in the development of CubeSats lies the attitude determination and control of the satellite. The importance of a properly functioning attitude determination and control system (ADCS) on any satellite is vital to the satisfaction of its mission objectives. Due to this importance, three-axis attitude control simulators are commonly used to test and validate spacecraft attitude control systems before flight. However, these systems are generally too large to successfully test the attitude control systems on-board CubeSat-class satellites. Due to their low cost and rapid development time, CubeSats have become an increasingly popular platform used in the study of space science and engineering research. As an increasing number of universities and industries take part in this new approach to small-satellite development, the demand to properly test, verify, and validate their attitude control systems will continue to increase. An approach to CubeSat attitude determination and control simulation is in development at the Virginia Tech Space Systems Simulation Laboratory. The final test setup will consist of an air bearing platform placed inside a square Helmholtz cage. The Helmholtz cage will provide an adjustable magnetic field to simulate that of a low earth orbit (LEO), and the spherical air bearing will simulate the frictionless environment of space. In conjunction, the two simulators will provide an inexpensive and adjustable system for testing any current, and future, CubeSat ADCS prior to flight. Using commercial off the shelf (COTS) components, the Virginia Tech CubeSat Attitude Control Simulator (CSACS), which is a low cost, lightweight air bearing testing platform, will be coupled with a 1.5-m-long square Helmholtz cage design in order to provide a simulated LEO environment for CubeSat ADCS validation.
Master of Science

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Rasmussen, Danne Rene, and danne@optusnet com au. "A Theoretical Approach to Molecular Design: Planar-Tetracoordinate Carbon." The Australian National University. Research School of Chemistry, 2000. http://thesis.anu.edu.au./public/adt-ANU20010702.115616.

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A number of novel hydrocarbon cage systems have been designed and characterized using ab initio molecular orbital calculations at the MP2 and B3-LYP levels. In particular,equilibrium structures for five families of molecules, hemialkaplanes, hemispiroalkaplanes, alkaplanes, spiroalkaplanes and dimethanospiroalkaplanes, have been examined in detail with the aim of designing a saturated hydrocarbon with a planar-tetracoordinate carbon atom and with a view to identifying appropriate synthetic targets. ¶ The hemialkaplanes and hemispiroalkaplanes are constructed from a spiropentane or neopentane subunit, respectively, which is capped by a cyclic hydrocarbon. The hemispiroalkaplanes are predicted to contain a pyramidal-tetracoordinate carbon atom possessing a lone pair of electrons. Protonation at this apical carbon atom is found to be highly favorable, resulting in a remarkably high basicity for a saturated hydrocarbon. The proton affinities of the hemispiroalkaplanes are calculated to be more than 1170 kJ mol[superscript -1] , even greater than those for the diamine "proton sponges". ¶ The alkaplanes and the spiroalkaplanes, which are constructed by bicapping a neopentane or spiropentane subunit, respectively, with a pair of cyclic hydrocarbons, show unprecedented flattening of a tetracoordinate carbon atom. Linking the spiroalkaplane caps with methano bridges gives the dimethanospiroalkaplanes, two of which, dimethanospirooctaplane and dimethanospirobinonaplane, achieve exact planarity at the central carbon atom. They are the first neutral saturated hydrocarbons predicted to contain an exactly planartetracoordinate carbon atom. This has been achieved through structural constraints alone. The electronic structure at the central carbon atom results in a highest occupied molecular orbital corresponding to a p-type lone pair. Consequently, the adiabatic ionization energies for octaplane, spirooctaplane and dimethanospirooctaplane (approximately 5 eV) are predicted to be similar to those of lithium and sodium - incredibly low for a saturated hydrocarbon. ¶ Some consideration has been given to likely pathways for unimolecular decomposition for all species. Predicted structures, heats of formation and strain energies for all the novel hydrocarbons are also detailed. Tetramethylhemispirooctaplane and dimethanospirobinonaplane are identified as the preferred synthetic targets.

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Campiz, Ryan. "Coupling Radio Frequency Energy Via the Embedded Rebar Cage in a Reinforced Concrete Structure for the Purpose of Concrete Degradation Sensing." UNF Digital Commons, 2018. https://digitalcommons.unf.edu/etd/836.

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This study focuses on utilizing an energy harvesting system in which a dedicated Radio Frequency (RF) power source transmits RF power via rebar in a reinforced concrete column. The RF power is received and decoupled by a receiver, and is then rectified, boosted, and stored as electrical energy in a supercapacitor, later to be used to make measurements, process data, and communicate to the source via rebar. Two design attempts are presented in this study: (a) one uses single line conduction at 2.4 GHz for RF power transfer; (b) the other uses a more conventional two-line conduction at 8.0 kHz for RF power transfer. Both designs were unsuccessful: (a) the 2.4 GHz attempt demonstrated that no detectable RF power propagated through the concrete medium; (b) the 8.0 kHz attempt demonstrated that too much of the RF power was attenuated through the concrete medium for the energy harvesting circuitry work properly. A potential third design approach is posited in the conclusion of this study. In addition to investigating power transfer designs, a study on the energy harvesting circuitry was performed. A Two-Stage Dickson Multiplier was utilized in conjunction with a Texas Instruments BQ25504 Ultra-Low Power Energy Harvesting Circuit. For these two components to function best, it was shown that the BQ25504’s input filtering capacitor needed to be on the same order of magnitude as the charging capacitors of the Two-Stage Dickson Multiplier, otherwise, if the filtering capacitor was comparatively too large, it would short the output of the Two-Stage Dickson Multiplier. With that said, the lowest power input observed was at 7.83 dBm, but with lower input powers expected to be achievable. Nevertheless, since the second design attempt showed power losses were too significant, it was deemed that at present, unless the power transfer design were improved, then contemporary commercial off the shelf energy harvesting approaches are insufficient.

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Syed, Altaf Ahmad. "Applied Fuzzy Logic Controls for Improving Dynamic Response of Induction Machines." Connect to resource online, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1219671348.

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Han, Muxin. "Construction of Low‐Symmetric and Light-Switchable Coordination Cages for Guest Uptake and Catalysis." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://hdl.handle.net/11858/00-1735-0000-0028-87A6-D.

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18

Heslop, Liza. "An ethnography of patient and health care delivery systems : dialectics and (dis)continuity." Monash University, Faculty of Education, 2001. http://arrow.monash.edu.au/hdl/1959.1/8764.

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19

Zhang, Yiping, Xinyi Yu, and Sintset Gilles. "Enterprise System Post-Implementation: A Practice of System Evaluation Issues in Health Care Organization : A case study of Jönköping County Council." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Informatik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-16459.

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Introduction: As Information Technology (IT) becomes more and more advanced, the Enterprise System (ES) starts to attract researcher’s attention. While with the high rate of failure IT projects, it is important to evaluate the IT project properly. This paper conducts a case study in the Health Care area and chooses Jönköping County Council’s ROS system to be the target system. According to the established linkage between theory and real world organization, a practice of Enterprise System Evaluation is conducted by using an existing Uwizeyemungu et al.’s Enterprise System Effects Evaluation Model (ESEM). The research questions are as follows: What are the Enterprise Systems Effects which impact on business processes? To what extend do the ES effects impact on the business processes? Purpose: the study is an exploratory study that aims at identifying what are the ES Effects which impact on the business processes and assessing the importance and the actual degree of these effects. The answers of the first goal are explored by analyzing the documents and the record of interview, and the results are the basis of the second question. Method: This research has adopted a combined approach because of the nature of the research questions. Data has been collected through face-to-face interview, survey and the organizational documents. Secondary data are also be used for analyzing. Both qualitative and quantitative data are used for getting a reliable conclusion. Conclusions: The Enterprise System effects can be categorized into automaional effects, informational effects and transformational effects. The relationship between such effects and Performance indicators are very important. By determining the importance and impacts degree of such relationships, the evaluation results can be explicitly calculated and understood.

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Pham, Kieu Thuy [Verfasser], and Wolfgang [Akademischer Betreuer] Fischer. "Functional characterization of the Helicobacter pylori Cag Type IV secretion system components CagH, CagI and CagL / Kieu Thuy Pham ; Betreuer: Wolfgang Fischer." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1124780033/34.

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21

Luque, Sebastián (Luque Holtheuer). "Stakeholder relationship management in controversial projects : a case study of the Cape Wind Project using a feedback analysis model." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107608.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, School of Engineering, System Design and Management Program, Engineering and Management Program, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 79-81).
Stakeholder relationship management is a key component for the successful design, implementation and operation of complex and socially controversial projects, yet a discipline that is often misunderstood or underrated. In a world were socially controversial projects have become and will continue to be ever more frequent and important, the need to improve the knowledge of stakeholder relationship management in controversial projects is very important. The objective of this report is to contribute to scholarship on stakeholder relationship management by using a newly developed system dynamics model developed at MIT called, the Golay-Williams stakeholder acceptance model. The model seeks to better illustrate complex stakeholder relationships, their dynamic nature and what must be done to gain enough support to ensure project success. This paper studies an emblematic U.S. controversial project, the Cape Wind offshore energy project, located in the Nantucket Sound in Massachusetts, in order to test the model capabilities to represent complex stakeholder dynamics and best practices in stakeholder engagement. The assessment of the Golay-Williams model derived from the Cape Wind Project case study, suggests that the Golay-Williams model can contribute significantly to the successful management of stakeholder relationships on socially controversial projects..
by Sebastián Luque.
S.M. in Engineering and Management

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22

Hartman, Nathaniel. "Examining Sonic Relationships in a Visual Context." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339115456.

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23

Bedingfield, Ralph Andrew. "Development of CAE system for switched motor drive systems." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10312009-020029/.

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24

Roth-Berghofer, Thomas R. "Knowledge maintenance of case-based reasoning systems : the SIAM methodology /." Berlin : Akad. Verl.-Ges. Aka, 2003. http://www.loc.gov/catdir/toc/fy0804/2008299389.html.

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25

Lee, Taih-Shyun. "Performance analysis and control design for Takagi-Sugeno fuzzy systems : matched and mismatched case." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/12102.

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26

CLEMENTE, KARLA. "MODELING SOCIOTECHNICAL SYSTEMS: A CASE STUDY INVOLVING A CRUISE CONTROL SYSTEM." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1992. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=14128@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
O objetivo do presente trabalho foi apresentar e avaliar técnicas estruturadas e ferramentas conceituais de modelagem para o desenvolvimento de sistemas de Tempo-Real, baseadas em extensões sobre Diagramas de Fluxo de Dados – DFDs, sendo estas propostas, primeiramente, por Ward e Mellor nos livros Structured Development for Real-Time Systems. Assim, modelou-se um Piloto Automático para Automóvel, sendo para este desenvolvido os Modelos da Essência, da Implementação (Modelo da Configuração dos Processadores, Modelo da Configuração dos Processos e Modelos da Configuração dos Módulos) e da Automação.
This work goal was to describe and to evaluate structured techniques and conception tools of modelling to develop Real-Time Systems, based on Data Flow Diagrams – DFDs – extensions, that were first described by Ward & Mellor on Structured Development for Real-Time Systems books. Therefore, it was modeled a Control Cruise System, describing its Essential Model, Implementation Model (Process Model, Task Model and Module Model) and Project Model.

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27

Norman, Garrett Todd. "Pull Manufacturing System Design for Rough Mill Systems: A Case Study." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/42732.

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Domestic secondary wood products manufacturers are losing their competitive edge in the global economy. Foreign competition is steadily gaining market-share due to decreased labor costs. While domestic operations can not compete with labor costs available to foreign manufacturers, they may be able to remain competitive through product lead time reduction and on-time delivery to the final customer. Pull based manufacturing is one technique to reduce lead time increase on-time delivery. Value stream mapping was used in this project to evaluate a furniture rough mill located in Virginia to assess the current state, as well as develop 2 future state value streams. The current state evaluation found the system to be yield driven and production was based on a forecast. The lead time for internal nightstand components in the current state was found to be 15.1 hours. Using pull production and supermarket methodology in proposed future states, it was found that the lead time could be reduced to 7.5 hours. Lead times could be reduced by eliminating yield increasing non-value added activities currently in place which not only increase lead time, but also manufacturing waste as defined by lean manufacturing concepts. A cost analysis found that the labor and overhead costs associated with yield increasing activities in the current state outweighed the costs of a decreased yield measurement in the future state. While this project was limited to one rough mill and one product family of a lesser valued wood species it represents what is possible for assisting secondary manufacturers to remain competitive. The once successful traditional yield driven rough mill does not guarantee internal customer satisfaction and in this project is not cost effective. Future research should focus on the implications of the furniture rough mill's inability to meet downstream demand to internal customers.
Master of Science

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28

Erdil, Nadiye Özlem. "Systems analysis of electronic health record adoption in the U.S. healthcare system." Diss., Online access via UMI:, 2009.

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Thesis (Ph. D.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Systems Science and Industrial Engineering, 2009.
Includes bibliographical references.

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29

Garza, Ramírez Jaime. "Distribution strategies in emerging markets : case studies in Latin America." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76917.

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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 119-131).
Defining sales and distribution schemes to serve a Latin American country is more of an art than science. The process of designing and selecting distribution channels is quite challenging and it demands an in-depth understanding of the market. The fact that most Latin American countries are experiencing significant growth and development makes it difficult for companies to implement the same distribution strategies used to serve mature markets. Leading firms are now exploring creative ways to effectively reach and efficiently serve each segment of the market. This research intends to explore the key drivers that shape the design and selection of sales and distribution channels, as well as to build a framework that could help companies design or select channels that are aligned to their core business strategy.
by Jaime Garza Ramírez.
S.M.in Engineering and Management

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30

Nair, Deepa R. "Visual design versus development a case study presenting how XML and XSLT can separate presentation from data /." [Gainesville, Fla.] : University of Florida, 2001. http://etd.fcla.edu/etd/uf/2001/anp1594/thesis.pdf.

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Thesis (M.S.)--University of Florida, 2001.
Title from first page of PDF file. Document formatted into pages; contains xi, 86 p.; also contains graphics. Vita. Includes bibliographical references (p. 85).

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31

Hsieh, Sheau-Ling 1952. "Distributed multimedia collaborative system framework for tele-healthcare remote consultation systems." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/284034.

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The Remote Consultation and Diagnosis (RCD) in Global Picture Archiving and Communication System (Global PACS) is a unique suite of multimedia telemedicine applications developed at the University of Arizona. The applications support real-time patients' data, image files, audio and video consultation and diagnosis annotation exchanges. The RCD enables joint collaboration between pathologists, radiologists, or physicians while they are at distant geographical locations. This project provides four RCD scenarios, i.e., Case Review, Case Acquire, Store and Forward Analysis, as well as Interactive Diagnosis and Consultation. The RCD Global PACS environment consists of heterogeneous, autonomous, and legacy resources. The Common Object Request Broker Architecture (CORBA), Java Database Connectivity (JDBC), and Java language provide the capability to combine the RCD Global PACS resources into an integrated, interoperable, and scalable system. The underneath technology, including IDL, ORB, Event Service, IIOP, JDBC/ODBC, legacy system wrapping and Java implementation are explored. This distributed collaborative CORBA/JDBC based framework will challenge the advanced, medical information management requirements. It also makes the RCD Global PACS both hardware and software technologically independent. As our research and development extend, we will continue to incorporate the latest advances in computer technology. RCD Global PACS is not another new tool in telemedicine, but rather a new paradigm for the delivery of health services that requires process reengineering, cultural changes, as well as organizational changes. It is a whole new way of practicing in telemedicine. We ensure that the RCD Global PACS project has long-term, comprehensive solutions for today and tomorrow's healthcare needs.

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32

Yang, Joseph H. (Joseph Hansuk). "The curious case of urban heat island : a systems analysis." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107347.

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Thesis: S.M. in Engineering, Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, System Design and Management Program, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 59-60).
This thesis provides insights into the urban heat island (UHI) effect using a model of the urban microclimate that integrates the urban geometry, anthropogenic heat emission and the rural weather condition. The study builds upon the Urban Weather Generator (UWG), a numerical simulation program previously developed at MIT, incorporating such improvements as monthly disaggregation of ground sink temperature, Depart of Energy (DOE) commercial reference building templates, hourly schedule of building and non-building anthropogenic heat loads, and the development of an Excel user interface. Simulation generated from the updated model offers an explanation of the underlying mechanisms driving the UHI impact and the interactions between elements of the urban weather system. Based on the sensible energy flux transferred to the urban air mass, an UHI indicator to express the severity of UHI effect by the urban landscape is also developed to help urban planners estimate and mitigate the impact.
by Joseph H. Yang
S.M. in Engineering

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33

Osman, Muhammad Ameer. "Challenges micro-enterprises experience in accessing support information using e-Government websites: Case of the Western Cape." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/28397.

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Background: Governments often provide support to Small, Medium and Micro-sized Enterprises (SMMEs) to ensure that they are sustainable. Micro-enterprises play an important role in the economic and socio-economic development of developing countries. However, the majority of micro-enterprises find it challenging to survive or to grow due to numerous challenges they experience. Information and Communication Technologies (ICTs) could assist micro-enterprises to grow and be competitive. E-Government has been internationally advocated to improve the delivery of government information. However, African governments are experiencing challenges that limit the success of e-Government. This has resulted in limited accessibility. Purpose of the research: The objective of the study is to investigate the challenges that micro-enterprises experience in accessing support information using e-Government websites in a developing country context. To achieve that the study describes the challenges experienced, analyses the types of support information accessed and identifies the Information and Communication Technology devices used to access support information. Design/methodology/approach: This multidisciplinary study adopted a constructivist approach and used an interpretive paradigm. The study was guided by Sen’s Capability Approach as a theoretical framework, and thematically analysed patterns between context, capabilities and outcomes. Data for the study was collected using semi-structured interviews. Furthermore, annual reports, published statistics and additional documents were also used as secondary data. Purposive and snowballing sampling were used to target established micro-enterprises in the Western Cape, South Africa. Findings: Micro-enterprises gained several benefits of using ICT for general business activities. These included improved access to information, improved communication, improved marketing, reduced costs and improved efficiency and productivity. Microenterprises also experienced several challenges with accessing support information using e-Government websites. These included content, structure, design, language availability and red tape. Support information relating to business skills development, products and services development and funding were mostly accessed. Furthermore, micro-enterprises mostly used laptops and mobile phones to access support information. Practical implications: The findings indicate that if micro-enterprises could access support information using e-Government websites, it could have a positive impact on their businesses such as improved competitiveness. Finally, the study uncovered that access to support information could also have a positive impact on the personal agency of microenterprises i.e. personal objectives such as women empowerment. Originality/contribution: The study contributes to the gap in research in terms of investigating the phenomenon of e-Government accessibility in developing countries. The study also contributes new understanding by separating the ICT and e-Government into two commodities to identify and show where the accessibility problem emanates from. Furthermore, the study proposes a conceptual model that provides an opportunity for researchers to understand users such as micro-enterprises of Government-to-Business projects so that suitable recommendation on the next course of actions be proposed to relevant stakeholders of future Government-to-Business projects.

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34

Kronberg, F., A. Weiner, T. Morgan, B. Stroozas, E. Girouard, A. Hopkins, L. Wong, M. James, J. Kneubuhl, and R. F. Malina. "Document Retrieval Triggered by Spacecraft Anomaly: Using the Kolodner Case-Based Reasoning (CBR) Paradigm to Design a Fault-Induced Response System." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611459.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California
We report on the initial design and development of a prototype computer-mediated response system, the Fault Induced Document Officer (FIDO), at the UC Berkeley Center for EUV Astrophysics (CEA) Extreme Ultraviolet Explorer project (EUVE). Typical 24x7 staffed spacecraft operations use highly skilled expert teams to monitor current ground systems and spacecraft state for responding to anomalous ground system and spacecraft conditions. Response to ground system error messages and spacecraft anomalies is based on knowledge of nominal component behavior and the evaluation of relevant telemetry by the team. This type of human-mediated operation is being replaced by an intelligent software system to reduce costs and to increase performance and reliability. FIDO is a prototype software application that will provide automated retrieval and display of documentation for operations staff. Initially, FIDO will be applied for ground systems. Later implementations of FIDO will target spacecraft systems. FIDO is intended to provide system state summary, links to relevant documentation, and suggestions for operator responses to error messages. FIDO will provide the operator with near realtime expert assistance and access to necessary information. This configuration should allow the resolution of many anomalies without the need for on-site intervention by a skilled controller or expert.

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35

Delibas, Adem 1980. "A systems approach to managing nutrient pollution in Cape Cod's coastal waters." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/100359.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 101-104).
Pressing problems are facing the coastal waters of the world due to the growing human activity. Increasing population and economic development around coastal areas have left many embayments throughout the world severely impaired. Excessive nutrient enrichment in water bodies, also known as nutrient pollution, is one of the leading impairments in coastal waters. Algal blooms, dead zones, and fish kills are spreading because of the nutrient pollution. This thesis presents a systems analysis of the nutrient pollution problem in the context of Cape Cod, Massachusetts, where the continuous degradation in coastal waters is considered as one of the greatest threats to the region's environmental and economic future. It proposes a system dynamics model created with a diverse stakeholder team to uncover the underlying system structure that has created the degradation in Cape Cod's coastal waters since 1960s. An important goal of this work was to support the development of a regional water quality management plan on Cape Cod by creating a shared understanding of the nutrient pollution problem across a wide range of stakeholders. Therefore, the proposed model was created with direct contributions of a diverse stakeholder team including representatives from residents, local municipalities, regional authorities, the state government, and the U.S Environmental Protection Agency. In addition to identifying the causal structure of the system through a set of qualitative diagrams, this thesis also proposes a formal simulation model and presents results of an in-depth policy analysis exploring how the degradation in Cape Cod's coastal waters could evolve under different future scenarios. Both the model-building process and the simulation experiments reveal several critical insights, including nonlinearity of the system behavior, delay in the system's response to interventions, and the importance of timely actions.
by Adem Delibaş.
S.M. in Engineering and Management

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36

Andersson, Andreas, and Thomas Bergsten. "A case study of documentation's significance : in ERP system development projects." Thesis, Jönköping University, JIBS, Business Informatics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-1241.

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Abstract

In order to stay competitive in today’s changing business world, companies need to manage

the increased complexity as they evolve. To be able to handle this complexity, many companies

chose to implement an ERP system. Investing in an ERP system is not something that

is made in a trice but is a large investment which together with today’s low-profit margins in

companies makes it essential to keep the costs as low as possible. More than half of the total

cost for an ERP investment is said to be related to costs for the system’s maintenance and

support. Documentation is one of the factors which affect this cost, and if it is not made satisfactorily

it is said to result in a considerable increase of the system’s total cost. This is why

it is important not to overlook the documentation as a part of ERP system development

project.

The purpose with this thesis is to investigate the existing documentation routines in ERP

system development projects at AB Volvo’s subsidiary Volvo IT, in order to find suggestions

of improvement for future projects. In order to fulfill the purpose of the study, we formed a

research question with three sub-questions and through a deep analysis of the empirical material

we presented the answers to these questions as the conclusions of this thesis.

Our study is based on an inductive research approach using a case study to gain deeper and

more helpful qualitative knowledge and data. The empirical data was analyzed using the

template analysis method where we divided the collected data into appropriate categories.

The knowledge created through this study is of exploratory, normative, predictive and categorical

nature.

After having analyzed the results from our case study we found several suggestions of improvements

for Volvo IT to use in future projects. For other companies involved in ERP

system development projects of their own, the conclusions of this thesis will work as valuable

issues to take into consideration for upcoming projects. We have concluded that the

main reason behind lacking quality of documentation in the development projects is not the

unawareness of its importance, but the absence of concrete evidence of high quality documentation’s

positive effects on a system’s total cost. We believe that in order to achieve documentation

of high quality, there needs to be a change of attitude to documentation as a

work task and the task itself must be higher prioritized in the projects. Another important

suggestion is that a control of the conducted documentation’s quality must be done, not only

a control of the existence of the right kind of documents. We are of the opinion that a company

should not allocate resources to create a method of documentation before the importance

of high quality documentation is clarified. Ultimately, we believe that the system development

process should be focused around the customer, because of the more frequent use

of custom made solutions and to help the people in the project to set the right level of abstraction

on the documentation.

Sammanfattning

För att företag ska kunna behålla sin konkurrenskraft i näringslivet, behöver de hela tiden utvecklas.

Men med utveckling kommer en ökad komplexitet som måste hanteras på något

sätt. Många företag väljer då att investera i ett affärssystem (s.k. ERP-system), vilket inte är

något som görs lättvindigt utan är en ansenlig investering. Detta faktum tillsammans med

dagens låga vinstmarginaler i företag gör att det är väsentligt att hålla kostnaderna så låga

som möjligt. Mer än hälften av kostnaderna för ett ERP-system sägs vara relaterat till underhålls-

och supportverksamhet. En av de faktorer som påverkar denna stora kostnad är dokumentationsaktiviteter,

vilken ifall de inte är utförd på rätt sätt kan leda till en ansenlig ökning

av ett systems totala kostnad. Det är därför väldigt viktigt att inte förbise dokumentationen

som en del av ett ERP-systemutvecklingsprojekt.

Syftet med vår studie var att undersöka existerande dokumentationsrutiner i ERPsystemutvecklingsprojekt

hos Volvo AB’s dotterbolag Volvo IT, för att sedan presentera

förbättringsförslag för framtida projekt i företaget. För att kunna uppfylla syftet med uppsatsen,

tog vi fram en forskningsfråga med tre följdfrågor och genom en grundlig analys av det

empiriska materialet kommer vi att presentera svaren på dessa frågor som våra slutsatser.

Vi har valt att genomföra en fallstudie med en induktiv ansats, för att införskaffa oss djupare

kunskap och därmed kunna generera ny kunskap inom området. Det empiriska materialet

analyserades utifrån en given modell där insamlad data delades in i lämpliga kategorier. Kunskapen

genererad från vår studie är av följande kunskapsform; kategoriell, förklarande, förutsägande

och normativ.

Efter att ha analyserat resultatet av vår fallstudie kan vi presentera ett flertal förbättringsförslag

för Volvo IT’s användning i framtida projekt. För andra företag, involverade i ERPsystemutvecklingsprojekt,

kan dessa fungera som värdefulla förslag att ta i beaktande. Vi

kom fram till att den främsta anledningen till bristande dokumentation inte är omedvetenheten

om dess betydelse, utan avsaknaden av konkreta bevis på dess positiva effekter på ett systems

totala kostnad. Vi anser att det krävs en attitydförändring kring dokumentation som

arbetsuppgift för att uppnå dokumentation som är av hög kvalitet och att arbetsuppgiften

som sådan behöver få högre prioritet i projekten. Ett annat viktigt förbättringsförslag vi fann

var att en kontroll av den producerade dokumentationens kvalité måste utföras, och inte

bara en kontroll av att den rätta sortens dokument finns. Vi anser att ett företag inte bör allokera

resurser till att skapa en metod eller modell över hur man ska dokumentera förrän vikten

och effekten av hög kvalitetsdokumentation är klargjord. Till sist anser vi att systemutvecklingsprocessen

bör fokuseras kring den framtida användaren, dels på grund av dagens

ökade användning av skräddarsydda system men också för att det minskar risken för en oönskad

effekt på projektets omfattning samt att det ökar kvaliteten på den slutgiltiga dokumentationen.

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37

Robinson, Brian E. "A System Dynamics Approach to Planning Systems-of-Systems Modernization| A Wireless Telecommunications Interface Standard Case Study." Thesis, The George Washington University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10845319.

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For decades, the United States (U.S.) Department of Defense (DoD) has developed, deployed, and operated hundreds of different types of systems as components of systems-of-systems. Achieving and maintaining joint systems-of-systems interoperability as new systems are added is a constant problem. The Army, Navy, U.S. Marine Corps, and Air Force each develop requirements, budgets, and acquire, field and operate systems that function as part of joint systems-of-systems. Technology and threats are rapidly evolving. These globally deployed systems and systems-of-systems employed by combatant commanders must be continuously modernized or risk becoming obsolete, resulting in potential mission failure and loss of life.

Using a wireless telecommunications interface standard case study, this research developed a unique method of planning systems-of-systems modernization using a system dynamics (SD) approach. This approach: a) accounts for key factors that influence the dynamic behavior of systems-of-systems modernization, impacting the ability to modernize systems-of-systems, and b) enables what-if analysis, and decision-making support of systems-of-systems modernization planning options. This research used a mixed-methods approach to demonstrate that the SD model is measurably superior to past practice. Quantitative statistical analysis was performed on 20 years’ (2001–2020) of data. A qualitative, scenario-based approach was used to develop an SD model. The results demonstrate that engineers, managers, and senior decision makers in the DoD can realize statistically significant gains by using an SD model to develop and explore systems-of-systems modernization planning options. This research’s original contribution to knowledge is the development and validation of an SD model for planning systems-of-systems modernization using a mixed-methods research approach.

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Tadevosyan, Davit. "System dynamic framework for analyzing organizational stress : United States Postal Service case study." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/100365.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 102-106).
Stress, both individual and organizational, appears to be an increasing problem in any society, and more so in organizations. It already is taking a significant toll on corporate and national levels. Slow recovering economy and pressures on bottom lines, especially for financially constrained organizations, further emphasize the problem and call for new solutions. This paper explores two aspects of stress - individual and organizational. Our goal was to provide a systems dynamic framework that organizations, as well as individuals, can use to improve the understanding of the physiological and psychological stress loads, as well as understand their relationship to organizational key performance indicators. Like many natural systems, human body is the ultimate limited system. The main benefit of the proposed framework will be the ability to monitor cumulative variables of the functional capacity of human body to process stressors, and the mental and emotional capacity of employees to carry out their duties.
by Davit Tadevosyan.
S.M. in Engineering and Management

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Renzi, Matthew Joseph. "System architecture decisions under uncertainty : a case study on automotive battery system design." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76579.

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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2012.
"June 2012." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 63-65).
Flexibility analysis using the Real Options framework is typically utilized on high-level architectural decisions. Using Real Options, a company may develop strategies to mitigate downside risk for future uncertainties while developing upside opportunities. The MIT-Ford Alliance has extended the techniques of flexibility analysis beyond high-level architecture to core product design decisions in future vehicle electrification. This thesis provides a methodology for a real-time support framework for developing novel engineering decisions. Risk is high in new product introduction. For hybrid and electric vehicles, market demand and technology forecasts have substantial uncertainty. The uncertainty is anticipated, as the high voltage battery pack hardware and control system architecture will experience multiple engineering development cycles in the next 20 years. Flexibility in product design could mitigate future risk due to uncertainty. By understanding the potential iteration of core technologies, the engineering team can provide flexibility in battery pack voltage monitoring, thermal control, and support software systems to meet future needs. The methodology used in this thesis has been applied in a Ford-MIT Alliance project. The Ford and MIT teams have valued key items within the core technology subsystems and have developed flexible strategies to allow Ford to capture upside potential while protecting against downside risk, with little-to-no extra cost at this early stage of development. A novel voltage monitoring technique and a unique flexible thermal control strategy have been identified and are under consideration by Ford. The flexibility methodology provided motivation and support for unique decisions made during product design by the Ford team.
by Matthew J. Renzi.
S.M.in Engineering and Management

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40

Park, Chang Bae S. M. Massachusetts Institute of Technology. "Product line-up design based on preference measurement : a case study on TV industry." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/77060.

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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references.
Sony, in 2010, introduced innovative product line-up setting process for its TV, using the technique of market segmentation and conjoint analysis. This practice was expected to increase its sales compared to traditional vertical line-up, as academia has for long asserted that meeting specific needs of consumer groups in customized way with the most preferred combination of features identified through conjoint analysis is a way to bring the most willingness to pay from consumers. However, contrary to its estimate, Sony lost its market share significantly in 2010. In this thesis, I analyze how Sony actually came up with needs-based product line-up and check on whether there has been any problem in its process reflecting on the framework proposed by academia. Consequently, three possible reasons to explain its failure were identified: -- The result of conjoint analysis should have been used in market segmentation; -- Purchasing decision of TV is not made at the individual level; -- Use of Meta attributes in conjoint analysis can be beneficial. In order to address the first issue, I recommend Sony to adopt a componential segmentation to execute both consumer segmentation and conjoint analysis, while for the second to consider the effect of group decision mechanism onto its conjoint analysis and to introduce consumer segmentation concept into the model of calculating group utility. Finally, in order to reflect Meta attributes in its conjoint analysis more properly, I propose that Sony should adopt prototype in preference measurement process, take business-oriented perspective in product planning process, and prepare to reshuffle its product line-up from scratch. Those recommendations will ensure increase of the efficiency of preference-based product line-up setting in estimating market reaction.
by Chang Bae Park.
S.M.in Engineering and Management

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41

Ghazzawi, Andrea E. "Navigating the Stroke Rehabilitation System: A Family Caregiver's Perspective." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23600.

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Introduction/ Objectives: Stroke, the third leading cause of death in Canada, is projected to rise in the next 20 years as the population ages and obesity rates increase. Family caregivers fulfill pertinent roles in providing support for family members who have survived a stroke, from onset to re-integration into the community. However, the transition from rehabilitation to home is a crucial transition for both the stroke survivor and family caregiver. As the stroke survivor transitions home from a rehabilitation facility, family caregivers provide different types of support, including assistance with navigating the stroke rehabilitation system. They also are a constant source of support for the stroke survivor providing them with continuity during the transition. In this exploratory study we examined family caregivers’ perceptions and experiences navigating the stroke rehabilitation system. The theories of continuity care and complex adaptive systems were used to examine the transition home from hospital or stroke rehabilitation facility, and in some cases back to hospital. Methodology: Family caregivers (n=14) who provide care for a stroke survivor were recruited 4-12 weeks following the patient’s discharge from a stroke rehabilitation facility. Interviews were conducted with family caregivers to examine their perceptions and experiences navigating the stroke rehabilitation system. Directed content analysis was used to explore the perceptions of family caregivers as they reflected on the transitions home. The theories of continuity of care and complex adaptive systems were used to interpret their experiences. Results/Conclusions: During the transition home from a rehabilitation facility, family caregivers are a constant source of support, providing the stroke survivor with continuity. Emergent themes highlight the importance of the caregiving role, and barriers and facilitators that impact the role, and influence continuity of care. Also, supports and services in the community were limited or did not meet the specific needs of the family caregiver. The acknowledgment of the unique attributes of each case will ensure supports and services are tailored to the family caregiver’s needs. Mitigation of systemic barriers would also decrease complexity experienced at the micro-level in the stroke rehabilitation system, and better support the family caregiver during the transition home from a stroke rehabilitation facility.

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42

Van, Niekerk Adriaan. "CLUES : a web-based land use expert system for the Western Cape." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019.1/1360.

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43

Shefali, Shweta. "Disruption of the group health insurance in light of the Affordable Care Act - system approach." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90725.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 127) and index.
Our current Healthcare system has multiple problems and it is widely perceived that it is not able to provide quality affordable healthcare to all Americans; millions of Americans are without Health Insurance. The Affordable Care Act (ACA) was signed into law to achieve goal of 'quality affordable care for all American'. The ACA has focus on Individual Health Insurance and the provision of Health Exchange Marketplaces to find and purchase Health Insurance. Disruptive Innovation is a phenomenon in which a new entrant company disrupts the existing established company. As ACA and Health Exchanges have provided level playing field for all companies - new entrants and established - will this lead to disruption of Healthcare? Disruptive Innovations is analyzed from System Approach point of view. Disruption is not limited to two companies; Disruptor System disrupts the existing system including incumbent company. Disruption will be spearheaded by new entrant Disruptor Company and disruption will take place at system level. The existing Healthcare System and Possible Disruptor Systems are defined and investigated. Relative advantage and disadvantages to these two systems with regard to ACA regulations are analyzed. Elements of the healthcare disruptor system are analyzed and information present in the public domain about Health Exchange enrolment after the end of first enrollment seasons is studied to find out who could be possible disruptor and whether disruptor system formation has started.
by Shweta Shefali.
S.M. in Engineering and Management

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44

Stokes, Jonathan. "Multimorbidity and integrated care." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/multimorbidity-and-integrated-care(28e8922f-42a6-4359-b01d-81ccdaf9bdbe).html.

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Background: Health systems internationally face a common set of challenges: ageing populations, increasing numbers of patients suffering from multiple long-term conditions (multimorbidity) and severe pressure on health and care budgets. ‘Integrated care’ is pitched as the solution to current health system challenges. But, in the literature, what integrated care actually involves is complex and contested. Aims: 1. What does ‘integrated care’ currently look like in practice in the NHS? 2. What is the effectiveness of current models of ‘integrated care’? 3. To what extent are there differential effects of ‘integrated care’ for different types of multimorbidity? Methods: The thesis utilises routinely collected data, systematic review and meta-analysis, combined with quasi-experimental methods (difference-in-differences, and subgroup analysis, difference-in-difference-in-differences). Results: The current implementation of the concept of integrated care is predominantly carried out through multidisciplinary team (MDT) case management of ‘at risk’ (usually of secondary-care admissions) patients in primary care. This approach, however, has not proven capable of meeting health outcome and utilisation/cost aims. Patient satisfaction, though, is consistently improved by the approach. There might also be positive spill-over effects of increased team-working through MDTs for the wider practice population. There does not appear to be a multimorbidity subgroup which benefits significantly more than others in terms of secondary-care utilisation or cost. However, patients at the end of life and/or those with only primary-care sensitive conditions might benefit slightly more than others. Conclusions: Integrated care, in its current manifestation, is not a silver bullet that will enable health systems to simultaneously accomplish better health outcomes for those with long-term conditions and multimorbidity while increasing their satisfaction with services and reducing costs. The current financial climate might mean that other means of achieving prioritised aims are required in the short-term, with comprehensive primary care and population health strategies employed to better prevent/compress the negative effects of lifestyle-associated conditions in the longer-term.

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45

Shrinath, Arjun. "The evolution of and trends in mobile health : a case study of its application to diabetes." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76509.

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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 101-106).
The escalating costs of healthcare have created an urgent need to develop innovative solutions that can improve the quality of healthcare delivered and quality of health outcomes. This thesis explores the role that smartphones can play in creating innovative solutions to help meet these goals. The thesis begins with an analysis of the structure of the healthcare industry and emerging trends. The next section introduces to the reader to the concept of dominant architecture and the analysis of glucose monitors using this framework. The latter part of this section highlights the industry landscape of the mobile health industry in general. This is followed by an analysis of mobile health solutions specific to diabetes based on which recommendations for future solutions are drawn. The final sections of this work provides the reader with some insights on emerging trends with some emphasis on potential solutions that can be developed to address existing gaps in the market.
by Arjun Shrinath.
S.M.in Engineering and Management

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46

Moore, Michael David. "Problems of tort litigation as a means of patient and consumer protection in health care systems." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/58522.

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Thesis (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 53-57).
The U.S. health care system relies on tort litigation as a means of protecting patients and consumers from medical malpractice. The system of tort litigation has contributed to the U.S. having the highest health care spending per capita of any nation, but it has not resulted in superior quality of care. This work argues that tort litigation in health care is actually detrimental to patient safety and that the deterrent effect that it is meant to provide is circumvented by elements inherent in tort law. The possibility of settlement without admission of guilt creates a mechanism by which litigation is encouraged by economic incentives, but actual malpractice is not effectively discouraged. Furthermore, the system limits the operational knowledge gained through adverse events by removing these events and the actions that created them from the public discourse. Various proposed and enacted reforms to medical tort litigation are considered and it is found that dysfunctional interactions between professionals of different disciplines constitute a major obstacle to effective system reform. Finally, a modular view of the health care system is presented as a step toward identifying and reforming these interactions.
by Michael David Moore.
S.M.

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47

Rosen, Joseph L., and Jason W. Walsh. "The Nett Warrior system: a case study for the acquisition of soldier systems." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10685.

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MBA Professional Report
This project provides an analysis of the Army's acquisition of the Nett Warrior (NW) soldier system. Its objectives are to document the legacy of the system and provide an overview of how acquisition strategy has adapted with respect to key acquisition elements since its inception on September 8, 1993. The product is a document that provides an analysis of the actions taken and the obstacles encountered and how the warfighters, user representatives, materiel developers, and lawmakers dealt with them. The NW need was approved in February 2009. The requirement was to provide improvements for dismounted soldiers in the five specific capability categories of lethality, command and control, mobility, survivability, and sustainment. For a period lasting approximately 20 years, the NW has evolved. Despite the Army's decision to terminate the LW it in FY 2007, NW's foundation for follow-on soldier system initiatives had been established. The success of NW will be dependent upon the program's ability to incorporate soldier-driven design requirements, integration of commercial technology, and thorough system testing.

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48

Seime, Mitchell D. "Common Submarine Radio room: a case study of a system of systems approach." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43998.

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Approved for public release; distribution is unlimited
Common Submarine Radio Room is the latest step by the submarine force towards implementing a modular approach using an open systems architecture and increasing the automation of communications network management. Introduced on the Virginia class submarines as a commercially furnished design, it has since transferred to government management as an acquisition category two program, replicated on the other four submarine classes and planned for the Ohio replacement submarine. The current design and development approach is done in a serial fashion, with a version completed for each class before beginning the development of the next. The increasing pace of technology due to obsolescence, new capabilities, demands to support individual program development and fielding schedules create conflicting priorities between fielding capability and maintaining effective configuration management of a version. Common Submarine Radio Room version uses a system of systems engineering and integration approach to balance the demands of each stakeholder and deliver capability. This approach will be examined as a case study to identify the benefits and consequences of design, testing, production, deployment, and sustainment.

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49

Mphaphuli, Edzani Brenda. "Exploring the introduction of a complex intervention in primary health care facilities in the Western Cape: A single site exploratory case study of the C²AIR² club challenge." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/26892.

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Context: The Western Cape Province's Department of Health, South Africa, implemented a complex intervention aimed at changing organisational culture across health facilities in the province called the C²AIR² club challenge, in phases, starting from August 2013 and was still ongoing in 2016 at the time of the research. A group of front-line staff from each participating health facility called C²AIR² club champions were capacitated to implement the intervention in their respective facilities. This study aimed to explored the process of introduction, diffusion, adoption and implementation of the C²AIR² club challenge in one of the primary health facilities where the challenge was implemented, using a diffusion of innovation lens. Methods: We examined the process of implementing the C²AIR² club and the contextual and other factors that constrained and enabled this process. Working in one primary health care facility selected as a representative case, we explored the experiences of the champions and other staff members of the C²AIR² club. Our methods included 21 in-depth interviews, informal conversations, document review, and non-participant observation. Results: Innovation-fit, leadership, champions, adopters' characteristics, and contextual issues were the main factors that influenced the spread of the C²AIR² club. Contextual issues particularly those related to resource constraints played a central role in determining the successful spread of the complex organisational culture change intervention. Sufficiently trained champions could successfully spread the intervention without onsite external change consultants' facilitation, however this took time and caution should be taken not to evaluate implementation success too early. Involvement of not only top leadership but of all other multi-levels and multi-disciplines facilitated the spread of the intervention. Conclusions: When introducing an innovation like the C²AIR² club challenge the impact of which is not immediate neither tangible, in an organisation where there are tangible problems such as lack of working space, staff shortages and shortages in working equipment, it is important that efforts are made to address these immediate challenges and where they cannot be addressed that this is openly acknowledged by the implementers and management. If this is not considered, organisational members are likely to acknowledge the innovation as a good initiative but one that they would not actively rally around as it does not speak to their problems.

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Malmer, Johan, and Niklas Seipel. "Shadow IT – Skuggsystem : En förklarande fallstudie om när verksamheten tar makten över IT." Thesis, Uppsala universitet, Institutionen för informatik och media, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-316062.

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Sådana system i en organisation som inte är sanktionerade kallas skuggsystem. I detta arbete har vi genomfört en fallstudie vid Försvarets materielverk FMV för att undersöka vad som orsakar att skuggsystem uppkommer. I studien har ett antal skuggsystem identifierats och möjliga orsaker har analyserats. Det är viktigt för en organisation att skaffa kunskap om skuggsystemens existens för att kunna hantera dem och därför är det viktigt med en förståelse för orsakerna bakom.
Systems in an organization that are not formally sanctioned are called shadow systems. In this paper we have conducted a case study at the Swedish Defence Material Administration FMV to better understand the drivers behind the creation of shadow systems. The study has identified a number of shadow systems and possible drivers have been analyzed. It is important for an organization to gain knowledge about the existence of shadow systems in order to manage them. Therefore it is important to have an understanding of the drivers behind shadow systems.

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Dissertations / Theses on the topic 'Cage systems'

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