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1
Li, Xu. "Business process integration." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11163824.
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Aldred, Lachlan James. "Fundamentals of process integration." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/48016/1/Lachlan_Aldred_Thesis.pdf.
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Technologies and languages for integrated processes are a relatively recent innovation. Over that period many divergent waves of innovation have transformed process integration. Like sockets and distributed objects, early workflow systems ordered programming interfaces that connected the process modelling layer to any middleware. BPM systems emerged later, connecting the modelling world to middleware through components. While BPM systems increased ease of use (modelling convenience), long-standing and complex interactions involving many process instances remained di±cult to model. Enterprise Service Buses (ESBs), followed, connecting process models to heterogeneous forms of middleware. ESBs, however, generally forced modellers to choose a particular underlying middleware and to stick to it, despite their ability to connect with many forms of middleware. Furthermore ESBs encourage process integrations to be modelled on their own, logically separate from the process model. This can lead to the inability to reason about long standing conversations at the process layer. Technologies and languages for process integration generally lack formality. This has led to arbitrariness in the underlying language building blocks. Conceptual holes exist in a range of technologies and languages for process integration and this can lead to customer dissatisfaction and failure to bring integration projects to reach their potential. Standards for process integration share similar fundamental flaws to languages and technologies. Standards are also in direct competition with other standards causing a lack of clarity. Thus the area of greatest risk in a BPM project remains process integration, despite major advancements in the technology base. This research examines some fundamental aspects of communication middleware and how these fundamental building blocks of integration can be brought to the process modelling layer in a technology agnostic manner. This way process modelling can be conceptually complete without becoming stuck in a particular middleware technology. Coloured Petri nets are used to define a formal semantics for the fundamental aspects of communication middleware. They provide the means to define and model the dynamic aspects of various integration middleware. Process integration patterns are used as a tool to codify common problems to be solved. Object Role Modelling is a formal modelling technique that was used to define the syntax of a proposed process integration language. This thesis provides several contributions to the field of process integration. It proposes a framework defining the key notions of integration middleware. This framework provides a conceptual foundation upon which a process integration language could be built. The thesis defines an architecture that allows various forms of middleware to be aggregated and reasoned about at the process layer. This thesis provides a comprehensive set of process integration patterns. These constitute a benchmark for the kinds of problems a process integration language must support. The thesis proposes a process integration modelling language and a partial implementation that is able to enact the language. A process integration pilot project in a German hospital is brie°y described at the end of the thesis. The pilot is based on ideas in this thesis.
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Fien, Gert-Jan A. F. "Studies on process synthesis and process integration." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-08032007-102242/.
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Alotaibi, Meteab Aujian. "Productivity enhancement through process integration." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4204.
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A hierarchical procedure is developed to determine maximum overall yield of a process
and optimize process changes to achieve such a yield. First, a targeting procedure is
developed to identify an upper bound of the overall yield ahead of detailed design.
Several mass integration strategies are proposed to attain maximum yield. These
strategies include rerouting of raw materials, optimization of reaction yield, rerouting of
product from undesirable outlets to desirable outlets, and recycling of unreacted raw
materials. Path equations are tailored to provide the appropriate level of detail for
modeling process performance as a function of the optimization variables pertaining to
design and operating variables. Interval analysis is used as an inclusion technique that
provides rigorous bounds regardless of the process nonlinearities and without
enumeration. Then, a new approach for identification of cost-effective implementation of
maximum attainable targets for yield is presented. In this approach, a mathematical
program was developed to identify the maximum feasible yield using a combination of
iterative additions of constraints and problem reformulation. Next, cost objectives were
employed to identify a cost-effective solution with the details of design and operating
variables. Constraint convexification was used to improve the quality of the solution towards globability. A trade-off procedure between the saving and expenses for yield
maximization problem is presented. The proposed procedure is systematic, rigorous, and
computationally efficient. A case study was solved to demonstrate the applicability and
usefulness of the developed procedure.
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Redlein, Alexander. "Facility management : business process integration /." Hamburg : Diplomica, 2004. http://www.gbv.de/dms/zbw/394165640.pdf.
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Linke, P. "Reaction and separation process integration." Thesis, University of Manchester, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505687.
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Price, David T. "N-Well CMOS process integration /." Online version of thesis, 1992. http://hdl.handle.net/1850/11261.
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Zdravkovic, Jelena. "Process Integration for the Extended Enterprise." Doctoral thesis, Stockholm : Department of Computer & Systems Sciences, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4027.
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Lipnizki, Frank. "Hydrophobic pervaporation : process integration and optimisation." Thesis, University of Bath, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343775.
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Shahi, Mohammad Hassan Panjeh. "Pressure drop consideration in process integration." Thesis, University of Manchester, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333599.
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Fatkins, Paul J. "Digital Integration in the Design Process." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1306500492.
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Harell, Dustin Ashley. "Resource conservation and allocation via process integration." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/485.
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Throughout the process industry, the conservation and allocation of mass and energy resources plays a pivotal role in the site wide optimization of a plant. Typically, raw materials are transformed into products, byproducts and wastes through pathways involving heating/cooling, pressure changes, mixing, reactions and separations. These pathways often require the addition or removal of energy from the system. The optimal management of such a system therefore requires conserving resources through the appropriate allocation of materials and energy. In a typical plant, there are both mass and energy objectives that require optimization. This dissertation will focus on optimizing the mass and energy resources present in a utility system. This will entail developing a novel framework of techniques to: target and design steam cogeneration networks while minimizing fuel requirements, identifying and utilizing sources of waste heat and incorporating heat pipes to enhance heat exchange networks. Additionally, a specific case of waste recovery will be examined when properties are the primary concern.
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Gabriel, Frederico Burjack. "Resource conservation and optimization via process integration." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3144.
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The process industries are characterized by the enormous use of natural resources
such as raw materials, solvents, water, and utilities. Additionally, significant amounts of
wastes are discharged from industrial facilities. As the world moves toward sustainable
progress, that is, meeting the demand of the current generation without affecting or
compromising the new generation, future process facilities must focus on resource
conservation and pollution prevention. The purpose of this work is to introduce a new
process integration methodology for the conservation and optimization of resources in
the process industries. The work is also geared towards reducing waste discharge from
the processing facilities. The optimal management of fresh resources and waste disposal
requires the appropriate allocation, generation, and separation of streams and species.
Material recycle/reuse/substitution, reaction alteration, and process modification are
some of the main strategies employed to conserve resources in the process industries.
The overall problem addressed in this dissertation can be stated as follows: Given
is a process with a number of streams (sources) that are characterized by certain criteria
(e.g., compositions of certain compounds, targeted properties) where these streams can
be utilized in a number of process units (sinks) if they satisfy given constraints on flow
rate, compositions, and/or properties. Additionally, interception devices may be used to
adjust stream criteria. The objective is to develop targeting procedures and synthesis
tools for the identification of minimum usage of fresh resources, minimum discharge of
waste, and maximum integration of process resources. The devised methodology
addresses four classes of problems:
 Targeting techniques using direct recycle strategies
 Recycle and interception procedures for single-component systems
 Recycle and interception procedures for multi-component systems
 Property integration for direct recycle strategies
The framework provided by this dissertation couples traditional mass integration
with groundbreaking property integration techniques to target, synthesize and optimize a
plant for maximal conservation of resources. In particular, this work introduces new
techniques such as material recycle pinch analysis, simultaneous recycle and interception
networks, and property-based allocation. Additionally, graphical, algebraic, and
optimization approaches are developed and validated with case studies in order to
illustrate the applicability of the devised procedures.
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Abbas, A. "The integration of controllability into process design." Thesis, University of Bath, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374607.
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Carvajal, Michael Angelo. "The design process for wheel-robot integration." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54528.
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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 65-66).
In this thesis, the design process for wheel-robot integration was documented and reflected on. The project focused on redesigned certain aspects a half-scale wheel-robot to be integrated with a half-scale CityCar prototype being built by the MIT Media Lab's Smart Cities Group. Primary attention was spent on analyzing the required steering torque need to maneuver the half-scale vehicle, and on implementing a design where the wheel-robots steered about the axis that passed through the center of gravity of the tire component. Budget and time constraints required quick and easy solutions to the design and integration of the wheel-robot components. A half-scale prototype made by Media Lab graduate student Peter Schmitt was used as a benchmark for the new wheel-robot design and an analysis of Schmitt's prototype is documented. Though many ideas and concept variations were explored during the design process, a complete design of the wheel-robot was not finalized in time for this report. More time must be spent in order to finalized an integration process that can be scaled up to the full-scale CityCar for future use in urban mobility improvement.
by Michael Angelo Carvajal.
S.B.
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Reynolds, K. A. "A process to aid information systems integration." Thesis, Cranfield University, 1997. http://dspace.lib.cranfield.ac.uk/handle/1826/11299.
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The work reported in this thesis is the culmination of a collaborative venture between
Matra BAe Dynamics and the CIM Institute at Cranfield University. Initially the thesis
examines the philosophy of the engineering doctorate, before describing the
collaborating organisation's history and the background to the decision to formulate a
structured process to aid information systems integration, including an appraisal of the
perspective prior to the research.
Following an extensive literature search of information systems and its integration, the
findings from a survey of information systems in manufacturing organisations are
described. These illustrate the need for a holistic modelling approach to aid information
systems integration, the limitations of capital investment appraisal methods and the need
to evaluate individual and multiple IS projects according to business objectives.
The thesis then extends to the development of a process framework constituting three
modules Audit, Assessment and Suggestion which provide a novel holistic approach to
the problem of information systems integration. Following a review of modelling
techniques, queuing models were selected to review the present engineering process
through the creation of a theoretical model to benchmark performance of the
information systems. Whilst linear goal programming models were utilised within the
assessment module to optimise the multi-variable criteria involved in the selection of
information system portfolios. The creation of financial scenarios based on corporate
accounts and market limitations considered the implications of an information systems
portfolio in conjunction with traditional investment appraisal methods to provide a
comprehensive assessment of individual and multiple projects.
The techniques used in this research were validated throughout and hence shown to
exhibit criterion validity, whilst an industrial case study was undertaken to substantiate
construct validity. Finally, recommendations for future work are presented and
proposals for future developments outlined.
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Reynolds, Katherine Ann. "A process to aid information systems integration." Thesis, Cranfield University, 1997. http://dspace.lib.cranfield.ac.uk/handle/1826/11299.
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The work reported in this thesis is the culmination of a collaborative venture between Matra BAe Dynamics and the CIM Institute at Cranfield University. Initially the thesis examines the philosophy of the engineering doctorate, before describing the collaborating organisation's history and the background to the decision to formulate a structured process to aid information systems integration, including an appraisal of the perspective prior to the research. Following an extensive literature search of information systems and its integration, the findings from a survey of information systems in manufacturing organisations are described. These illustrate the need for a holistic modelling approach to aid information systems integration, the limitations of capital investment appraisal methods and the need to evaluate individual and multiple IS projects according to business objectives. The thesis then extends to the development of a process framework constituting three modules Audit, Assessment and Suggestion which provide a novel holistic approach to the problem of information systems integration. Following a review of modelling techniques, queuing models were selected to review the present engineering process through the creation of a theoretical model to benchmark performance of the information systems. Whilst linear goal programming models were utilised within the assessment module to optimise the multi-variable criteria involved in the selection of information system portfolios. The creation of financial scenarios based on corporate accounts and market limitations considered the implications of an information systems portfolio in conjunction with traditional investment appraisal methods to provide a comprehensive assessment of individual and multiple projects. The techniques used in this research were validated throughout and hence shown to exhibit criterion validity, whilst an industrial case study was undertaken to substantiate construct validity. Finally, recommendations for future work are presented and proposals for future developments outlined.
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Coetzee, W. A. S. "Steam systems network synthesis using process integration." Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-08252008-165312/.
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Ingle, Nicholas. "A process model for acquisition integration success." Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2856.
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On average over the last 30 years 50% of all mergers and acquisitions have failed, with a third of all these failures having been caused by poor integration. This study sets out to examine a potential solution to improve the chances of integration success. An evaluation of the published acquisition integration process models that had strategic alignment of the acquisition strategy at their core was carried out and these were found to be incomplete and deficient in various aspects, including integrating fit factors, defined process stages and their interconnectedness. A conceptual acquisition integration process model was developed, based on a review of the literature which was subsequently used to design an appropriate research methodology to enhance and validate this model. In subsequent field work a qualitative case study approach, incorporating interviews, documents and comparative data analysis, was undertaken using four organisations and sixteen interviews, to assess how those organisations carry out the integration process. The results were combined with the conceptual model to develop an interim integration process model. This model was subsequently tested on the previous case organisations through semi-structured interviews. The conceptual process model was re-appraised and an internal and a limited external validation study were carried out on the revised model. From this the final complete acquisition integration process model and acquisition planning and integration implementation ‘onion’ was developed that is both practical and empirically tested, albeit on a small sample set.
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Jain, Radhika. "Business Process Integration: A Socio-Cognitive Process Model and a Support System." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/cis_diss/8.
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A major challenge to achieving business process agility is the fragmentation of business processes, especially in organizations with semiautonomous business units. This fragmentation manifests itself in the form of diversified business processes performing similar activities. To address this challenge and achieve synergies across business units, processes should be integrated. Extant research on business process management has not paid much attention to such integration. Motivated by this concern, the primary objectives of my research are: “1) to understand how integration of similar business processes is achieved by semiautonomous business units and 2) to develop a process modeling support system that can help find similarities among business process models to aid process designers and to empirically evaluate its effectiveness in supporting process modeling activities.” I use a two-phased approach to address above objectives. In the first phase, I draw upon the analytic concept of frames of reference to develop a socio-cognitive process model to understand cognitive processes of stakeholders involved in the business process integration. This is done by analyzing the shifts in frame salience and frame congruence to enable the development of common-yet-tailorable business process. Data collection was conducted at ManCo, a Fortune 500 manufacturing company that had undertaken a process integration initiative in its multi-billion dollar supply chain across its five business units. Using qualitative data analysis, I identify four frame domains. Shifts in the frame salience and congruence highlight how, through a series of events, process stakeholders bring about integration. Frames domains identified in phase 1 highlight how individual business units’ perceptions differ. The use of diverse terminologies to refer to similar concepts added to the inability of process designers to reuse existing process models. These observations motivated the design research conducted in the second phase. I develop a prototype system, BPSimilar, which helps users to retrieve semantically similar process models. The approach to retrieve process models combines structural and semantic similarity-matching. The need for such a mechanism to speed up the model development was suggested by the case study. The effectiveness of BPSimilar for improving performance of users is evaluated in a qualitative study using verbal protocol analysis.
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Daniel, Lisa J. "Stakeholder interactions in the process of biotechnology integration /." St. Lucia, Qld, 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17831.pdf.
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Gómez, Tello Alicia. "The european integration process: trade, mobility, and policy." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/384937.
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La Unión Europea (UE) constituye uno de los procesos de integración más completos del mundo. Sin embargo, todavía se detectan importantes diferencias sociales y económicas entre sus países miembros, y dichas diferencias podrían limitar los efectos positivos asociados con cualquier proceso de integración.
El objetivo de esta disertación es examinar fortalezas y debilidades relacionadas con el proceso de integración europeo.
La tesis se centra en tres aspectos específicos: la integración comercial, la movilidad de capital y personas y la efectividad de la Política Agraria Común (PAC).
En el Capítulo 2, “What Are the Most Important Partners of the Most Recently Admitted EU Countries” , se investiga si la quinta ampliación de la UE (2004) supuso una integración comercial para los nuevos países miembros (UE-10). Para ello se construye una base de datos que recoge información sobre los flujos comerciales de los países de la UE-10 con 180 socios comerciales durante el periodo 1999–2011. Aunque los resultados reflejan que hubo una integración comercial entre los nuevos y viejos socios a partir de 2004, dicha integración fue más pronunciada entre los países de la UE-10. Por tanto, los resultados confirman que las raíces históricas de los nuevos socios han condicionado su integración con los países de la UE-15.
En el Capítulo 3, “Foreign Direct Investment and Immigration Inflows in Spain”, se investigan los determinantes de la entrada de inversión extranjera directa (IED) en España. Este país perdió parte de sus factores atractivos como destinatario de IED después de las ampliaciones de la UE hacia el este. Para llevar a cabo este análisis, se construye una base de datos tras combinar dos fuentes de datos específicos: uno relacionado con las empresas y el otro con los trabajadores. Los resultados muestran que los inversores extranjeros se localizan en lugares donde hay una mano de obra con una cualificación media en lugar de una cualificación alta, tal y como concluye la mayor parte de la literatura empírica relacionada con los determinantes de IDE. Este resultado revela la existencia de problemas estructurales en el entorno empresarial español, ya que los inversores extranjeros están principalmente atraídos por incentivos transitorios. Dicha situación imposibilita que España pueda gozar de un adecuado ambiente empresarial apto para atraer IED en el largo plazo.
Finalmente, en el Capítulo 4, “Land Specialization in Spain: The Effects of the Common Agricultural Policy”, se investiga en qué medida la PAC ha afectado la eficiencia de la producción agraria en España. A partir del trabajo de Costinot y Donaldson (2012), se desarrolla una estrategia empírica que consiste en comparar la producción real con la potencial, esta última calculada a partir de un ejercicio de optimización que recoge implícitamente el concepto de coste de oportunidad. Los resultados identifican una mejora en la eficiencia de la producción agraria en España tras su adhesión a la UE (1986) y, sobre todo, tras la reforma Fischler (2003). Esta reforma rompió el link entre subsidios y nivel de producción y, consecuentemente, produjo un cambio significativo en los incentivos de producción, ahora basados en las características del mercado y no en lo requerimientos necesarios para obtener los subsidios.
Por tanto, a pesar de que se han detectado efectos positivos asociados con el proceso de integración europeo, también se han encontrado circunstancias en las que dichos efectos han sido menores de lo esperado. Con el fin de permitir que el proyecto europeo progrese adecuadamente, dichas debilidades —la mayoría relacionadas con las diferenciase económicas entre los estados miembros— deberían ser solventadas.The European Union is experiencing one of the most complete integration process in the world. Nevertheless, there still exist important social and economic differences among its member states, and these differences could limit the positive effects associated with the integration process. The objective of this dissertation is to examine the benefits and drawbacks of a number of selected features entailed by the European integration process. We focus on three specific aspects: trade integration among EU member states, the free mobility of capital and workers, and the true effectiveness of the Common Agricultural Policy (CAP). In Chapter 2, “What Are the Most Important Partners of the Most Recently Admitted EU Countries,” we investigate whether the fifth EU enlargement (2004) truly generated a trade integration effect for new member states (EU-10). To tackle this question, we build a database by compiling the information referring to trade flows among EU-10 countries and 180 commercial partners during 1999–2011. Though our results show that trade flow intensity between EU-15 and EU-10 countries increased after 2004, the trade integration effect was much stronger within the EU-10 group. This finding confirms that the historical background of EU-10 countries conditioned their trade integration with EU-15 countries, especially in sectors with more technological content. The Chapter 3, “Foreign Direct Investment and Immigration Inflows in Spain,” investigates the determinants of foreign direct investment (FDI) in Spain. This country lost part of its principal attractiveness as an FDI recipient after the EU enlargements to the east. We provide a quantitative assessment of the importance of agglomeration economies, network effects, and labor market composition in attracting FDI. To conduct our analysis, we create a novel database after adapting and merging information from two micro-data sources: one for companies and the other for workers. Our results highlight that incoming foreign investors privilege the hiring of medium-skilled workers rather than high-skilled ones, as is often found in the empirical research of FDI determinants. This result reveals the existence of structural problems in the Spanish business environment—namely, foreign investors are principally attracted by monetary or transitory incentives that make the interest to locate in Spain a temporally limited strategy. Unfortunately, this situation prevents Spain from building and enjoying a qualified business environment that could be able to attract more long-term FDI. Finally, in Chapter 4, “Land Specialization in Spain: The Effects of the Common Agricultural Policy,” we investigate the extent to which the CAP affected the level of agricultural production in Spain. Following Costinot and Donaldson (2012), the pivotal technique of our strategy involves comparing actual output with potential output, the latter of which derives from an optimization problem relying on the Ricardian idea of opportunity cost. Ultimately, our results identify an improvement of the agricultural production efficiency after Spain entered the European Economic Community (1986) and, above all, after the Fischler reform (2003). The 2003 CAP reform broke the linkage between subsidies and production. This provided the right incentives to impulse real production in Spain since made production strategies more connected with the market devices than subsidy requirements. Overall, although our research quantifies the existence of positive effects associated with the European integration process, we also detect specific circumstances in which the effects of integration have been different from the expected ones. However, these weaknesses—most of them associated with the lack of strong economic ties among all member estates—need to be overcome in order to allow the European project progress.
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Almutlaq, Abdulaziz M. "Algebraic approaches to resource conservation via process integration." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2533.
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The primary objective of this dissertation is to introduce several algebraic
procedures to the targeting of material recycle networks. The problem involves the
allocation of process streams and fresh sources to process units (sinks) with the objective
of minimizing fresh purchase and waste discharge. In the case of composition-limited
sinks, allocation to process sinks is governed by feasibility constraints on flowrates and
compositions. A systematic non-iterative algebraic approach is developed to identify
rigorous targets for minimum usage of fresh resources, maximum recycle of process
resources and minimum discharge of waste. These targets are identified a priori and
without commitment to the detailed design of the recycle/reuse network. The approach is
valid for both pure and impure fresh resources. The devised procedures also identifies the
location of the material recycle pinch point and addresses its significance in managing
process sources, fresh usage, and waste discharge. The dissertation also addresses the
targeting of material-recycle networks when the constraints on the process units are
described through flowrates and properties. This property-integration problem is solvedusing a non-iterative cascade-based algebraic procedure. Finally, for more complex cases
with multiple fresh sources and with interception networks, a mathematical-programming
approach is developed. Because of the nonlinear non-convex characteristics of the
problem, the mathematical model is reformulated to enable the global solution of the
problem. Several case studies are solved to illustrate the ease, rigor, and applicability of
the developed targeting technique.
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Ocampo, Quintero Manuel Antonio. "Business process based integration of dynamic collaborative organizations." Monterrey : Tecnológico de Monterrey, 2006. http://biblioteca.itesm.mx/cgi-bin/doctec/listdocs?co_recurso=doctec:133300.
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Tesis (Master in Science in Information Technology) -- Tecnológico de Monterrey, Campus Monterrey.Título tomado de la pantalla de presentación [como fue visto el 30 de agosto de 2006] Incluye referencias bibliográficas. También disponible en formato impreso.
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Wong, Ming-ho Horatio, and 黃明浩. "Computer integration of the electrical discharge machining process." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30071653.
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Lindmark, Johan. "Developing the anaerobic digestion process through technology integration." Doctoral thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26081.
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Process optimization is needed for the development and expansion of the biogas industry and to meet the ever growing demand for methane. This thesis explores process technologies for the development of the anaerobic digestion process and includes pre-treatments, studies on the effects of different mixing modes and evaluation of a water treatment technology. Two pre-treatments were evaluated, mechanical and electroporation, for treatment of ley crop silage. Mechanical treatment included two milling machines designed for recycling of paper, Grubben deflaker and Krima disperser, and showed an increased biogas production of 59 % and 43 % respectively as well as a positive energy balance and economic results.. Electroporation increased the biogas production with 16 %, however, development is needed to increase its energy efficiency. Digester mixing has an effect on the digestion result. The performed review and experiments show that the mixing demand increases with organic loading. Excessive mixing during process start up, instabilities and shock loads leads to increased volatile fatty acid concentrations and process inhibition. Reduction of mixing reduces the effects of process instabilities and periodical mixing with mixing breaks has been shown to be beneficial for biogas production. A high temperature membrane filtration unit was evaluated at 70 °C, 90 °C and 110 °C to determine separation efficiencies, permeation speed when treating process water at a biogas plant. Improved separation can increase the capacity of the substrate pre-processing and reduce process related problems. The results show a total solids separation of 60 %, and an increasing filtration speed with temperature with fluxes of between 113 and 464 L/ h m2. The substrate pre-processing could theoretically handle up to 29 % more substrate as a result. Integration of these technologies in a biogas plant show that the pre-treatments studied exhibits a good performance when integrated and that mixing reduction has the potential to lower the process electricity demand by 23 % in the performed case study. However, even though the membrane filtration unit shows promising results it would demand a relatively high energy consumption and lead to limited benefits to a process already at it maximum organic loading.
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Denecke, Johan C. (Johan Carl). "Simulation of the satellite integration and test process." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/47376.
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Oluleye, Oluwagbemisola Olarinde. "Integration of waste heat recovery in process sites." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/integration-of-waste-heat-recovery-in-process-sites(ebbc2669-2c9b-40be-9eae-8d2252f0286f).html.
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Exploitation of waste heat could achieve economic and environmental benefits, while at the same time increase energy efficiency in process sites. Diverse commercialised technologies exist to recover useful energy from waste heat. In addition, there are multiple on-site and offsite end-uses of recovered energy. The challenge is to find the optimal mix of technologies and end-uses of recovered energy taking into account the quantity and quality of waste heat sources, interactions with interconnected systems and constraints on capital investment. Explicit models for waste heat recovery technologies that are easily embedded within appropriate process synthesis frameworks are proposed in this work. A novel screening tool is also proposed to guide selection of technology options. The screening tool considers the deviation of the actual performance from the ideal performance of technologies, where the actual performance takes into account irreversibilities due to finite temperature heat transfer. Results from applying the screening tool show that better temperature matching between heat sources and technologies reduces the energy quality degradation during the conversion process. A ranking criterion is also proposed to evaluate end-uses of recovered energy. Applying the ranking criterion shows the use to which energy recovered from waste heat is put determines the economics and potential to reduce CO2 emissions when waste heat recovery is integrated in process sites. This thesis also proposes a novel methodological framework based on graphical and optimization techniques to integrate waste heat recovery into existing process sites. The graphical techniques are shown to provide useful insights into the features of a good solution and assess the potential in industrial waste heat prior to detailed design. The optimization model allows systematic selection and combination of waste heat source streams, selection of technology options, technology working fluids, and exploitation of interactions with interconnected systems. The optimization problem is formulated as a Mixed Integer Linear Program, solved using the branch-and-bound algorithm. The objective is to maximize the economic potential considering capital investment, maintenance costs and operating costs of the selected waste heat recovery technologies. The methodology is applied to industrial case studies. Results indicate that combining waste heat recovery options yield additional increases in efficiency, reductions in CO2 emissions and costs. The case study also demonstrates that significant benefits from waste heat utilization can be achieved when interactions with interconnected systems are considered simultaneously. The thesis shows that the methodology has potential to identify, screen, select and combine waste heat recovery options for process sites. Results suggest that recovery of waste heat can improve the energy security of process sites and global energy security through the conservation of fuel and reduction in CO2 emissions and costs. The methodological framework can inform integration of waste heat recovery in the process industries and formulation of public policies on industrial waste heat utilization.
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Sanchez, Manuel. "Autonomic process management for Integration in Industry 4.0." Thesis, Pau, 2020. http://www.theses.fr/2020PAUU3006.
Full textAbstract:
En raison de la révolution numérique, connue sous le nom d'Industrie 3.0, les frontières entre les mondes physique et digital se rétrécissent pour donner vie à des usines plus interconnectées et intelligentes dans lesquelles les employés, les machines, les processus et les produits interagissent de manière à donner une meilleure organisation de tous les moyens productifs, toute l'entreprise elle-même pour atteindre des niveaux plus élevés d'efficacité et de productivité. Ces technologies transforment profondément notre société, permettant de tout personnaliser en détail, de réduire les coûts des biens et services, de transformer les conditions de sécurité des travailleurs, entre autres. En ce sens, l'Industrie 3.0 a agi comme un catalyseur qui a promu de nouveaux mécanismes de production, à l'origine d'une nouvelle révolution industrielle connue sous le nom d'Industrie 4.0. Le concept d'Industrie 4.0 est utilisé pour désigner la nouvelle génération d'usines connectées, robotiques et intelligentes. Fondamentalement, la vision de l'Industrie 4.0 est de donner des capacités intelligentes à la production et aux opérations physiques pour créer un écosystème plus holistique et mieux connecté.Principalement, cette thèse vise à responsabiliser la gestion des processus pour l'Industrie 4.0, en proposant une pile de cinq niveaux, notée 5C. Les niveaux de pile 5C représentent un moyen de relever les défis d'intégration et d'interopérabilité afin qu'ils puissent être résolus de manière incrémentielle à chaque niveau. Dans cette perspective, nous devons commencer à résoudre les problèmes de connexion et de communication comme une première étape pour promouvoir des processus d'organisation plus élaborés comme la coordination, la coopération et la collaboration. Essentiellement, le 5C désigne des éléments essentiels pour permettre l'intégration autonome et l'interopérabilité des acteurs de l'Industrie 4.0.De ce point de vue, nous présentons une première contribution qui est destinée à faire face aux défis d'intégration du contexte de l’Industrie 4.0 au niveau de la connexion et de la communication. En second lieu, nous allons résoudre certains défis d'intégration de l'Industrie 4.0 au niveau de la coordination, de la coopération et de la collaboration. Enfin, nous mettons en œuvre un cycle autonome de tâches d'analyse de données pour l'autosurveillance, en utilisant plusieurs techniques d'exploration minière de tout sur des sources de données correspondant à un véritable processus de fabrication. Il définit un système de supervision basé sur la valeur propre, selon la classification faite par Xu et al. (2017), qui peut traiter et vérifier les fonctionnalités et l'applicabilité de notre cadre dans les processus de fabrication. De plus, le système d'auto-supervision développé dans ce projet de thèse sera comparé à d'autres travaux de rechercheBecause of the digital revolution, also known as Industry 3.0, the boundaries between the physical and digital worlds are shrinking to give life to a more interconnected and smart factories. These factories allow employees, machines, processes, and products to interact oriented to provide a better organization of all the productive means, empowering the entire company itself to achieve higher levels of efficiency and productivity. These technologies are profoundly transforming our society, allowing customizing everything in detail, reducing goods and services costs, transforming worker's and job’s conditions for safety and security, among others. In that sense, Industry 3.0 acted as a catalyst that promoted new production mechanisms, which originated a new industrial revolution known as Industry 4.0. The concept of Industry 4.0, is used to designate the new generation of connected, robotics, and intelligent factories. Fundamentally, the vision of Industry 4.0 is to give smart capabilities to the production and physical operations to create a more holistic and better-connected ecosystem.One crucial aspect to consider, regarding the idea of the Industry 4.0 concept, is related to integrability and interoperability of the actors involved in manufacturing processes. It means that people, things, processes, and data have to be able not only to make decisions for themselves and to carry out their work in a more autonomous way (independence) but, also, the self-management of the whole factory (need to promote integrability and interoperability). The previous statement implies that the production processes’ actors should be able to autonomously negotiate in order to reach agreements linked to achieve both individual and collective production goals. In that sense, Industry 4.0 represents not only a new way to produce goods and services but also a crucial integration challenge of the actors involved in the manufacturing processes that need connection, communication, coordination, cooperation, and collaboration (denoted as 5C) capabilities that allow them to comply with the vision of Industry 4.0.Principally, this thesis aims at empowering processes management for Industry 4.0, proposing a stack of five levels, denoted as 5C. The 5C stack levels represent a way to deal with integration and interoperability challenges so that they can be solved incrementally at each level. From this perspective, we must start solving connection and communication issues as a first step to promote more elaborated organization processes like coordination, cooperation, and collaboration. Mainly, the 5C denote the elements needed to allow autonomous integration and interoperability of actors in Industry 4.0.From this point of view, in this thesis project, we present a first contribution that is oriented to deal with the integration challenges regarding the Industry 4.0 context at the level of connection and communication. In the second place, we will solve some integration challenges of Industry 4.0 at the level of coordination, cooperation, and collaboration. Finally, we implement an autonomous cycle of data analytics tasks for self-supervising, using several Everything-mining techniques over data sources corresponding to a real manufacturing process. It defines a self-value-driven supervisory system, according to the classification made by Xu et al. (2017), that can process and verify the functionalities and applicability of our framework in manufacturing processes. Moreover, the self-supervising system developed in this thesis project is compared to other research works
30
Salaam, Abdul, and Sultan Mehmood. "Integration of Digital tools in Product Realization Process." Thesis, Jönköping University, JTH, Produktionsutveckling, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-54027.
Full textAbstract:
The market has been evolving lately, with the introduction of more and more digital tools that industries are making use to improve their overall operations within the Production process. The integration of digital tools within the Product realization process has major advantages in improving production performance. Many large industries make use of digital tools to digitize their products making them smart products. Implementing these digital tools can be beneficial for reshaping the organization which can lead to better customer satisfaction and improve business strategy. This project explores different digital tools that can be integrated with the product realization process and how these tools contribute to the different production development phases. This thesis presents a detailed study of the digital tools Simulation, Visualization, Emulation, and Digital twins which can be integrated with the product development process. A pre-study is conducted to gather knowledge regarding the application of these tools and further discover how these tools can support the Product realization process and is used to describe which tool works best at which stage of the product realization process, which can be used to improve the efficiency and accuracy of the production process. Implementing these digital tools within the production facility can be associated to smart factory paradigm of the Fourth industrial revolution Industry4.0.This research aims to contribute to the use of digital tools in the production processes and aids in bridging the gap between traditional and modern manufacturing methods. The outcome of this study is to clarify how the above-mentioned digital tools are linked to the product realization process to support an efficient and digitalized production development, also mentioning the strengths and weaknesses of these tools. The resulting analysis has provided a framework developed to support an efficient digitalized production development and preparation process for assembly tasks utilizing human and robot collaboration. This research paper can be used as a guide for companies that want to explore how implementing digital tools in their product realization process and how it may improve their productivity.
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Hernandez, Enriquez Aurora. "Simulation-based process design and integration for retrofit." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/simulationbased-process-design-and-integration-for-retrofit(90c6bcf4-6421-4731-8f82-1e839478daab).html.
Full textAbstract:
This research proposes a novel Retrofit Design Approach based on process simulation and the Response Surface Methodology (RSM).Retrofit Design Approach comprises: 1) a diagnosis stage in which the variables are screened and promising variables to improve system performance are identified through a sensitivity analysis, 2) an evaluation stage in which RSM is applied to assess the impact of those promising variables and the most important factors are determined by building a reduced model from the process response behaviour, and 3) an optimisation stage to identify optimal conditions and performance of the system, subject to objective function and model constraints. All these stages are simulation-supported. The main advantages of the proposed Retrofit Design Approach using RSM are that the design method is able to handle a large industrial-scale design problem within a reasonable computational effort, to obtain valuable conceptual insights of design interactions and economic trade-off existed in the system, as well as to systematically identify cost-effective solutions by optimizing the reduced model based on the most important factors. This simplifies the pathway to achieve pseudo-optimal solutions, and simultaneously to understand techno-economic and system-wide impacts of key design variables and parameters. In order to demonstrate the applicability and robustness of the proposed design method, the proposed Retrofit Design Approach has been applied to two case studies which are based on existing gas processing processes. Steady-state process simulation using Aspen Plus TM® has been carried out and the simulation results agree well with the plant data. Reduced models for both cases studies have been obtained to represent the techno-economic behaviour of plants. Both the continuous and discrete design options are considered in the retrofitting of the plant, and the results showed that the Retrofit Design Approach is effective to provide reliable, cost-effective retrofit solutions which yield to improvements in the studied processes, not only economically (i.e. cost and product recovery), but also environmentally linked (i.e. CO₂ emissions and energy efficiency). The main retrofitting solutions identified are, for the first case, column pressure change, pump-around arrangement and additional turbo-expansion capacity, while for the second case, columns pressure change, trays efficiency, HEN retrofit arrangements (re-piping) and onsite utility generation schemes are considered. These promising sets of retrofit design options were further investigated to reflect implications of capital investment for the retrofit scenarios, and this portfolio of opportunities can be very useful for supporting decision-making procedure in practice. It is important to note that in some cases a cost-effective retrofit does not always require structural modifications. In conclusion, the proposed Retrofit Design Approach has been found to be a reliable approach to address the retrofit problem in the context of industrial applications.
32
Jerome, Adeline. "Integration of LCA into the building design process." Thesis, KTH, Hållbara byggnader, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-251814.
Full textAbstract:
The required estimation of performances of a building cannot be limited to its energy efficiency anymore. Environmental issues are rising concerns into national policies. However, information about construction products is still segmented into several distinct databases: the construction company gathered data for its design process into private pricing databases while environmental declarations from manufacturers are available in a public database. The interconnection of the different information about the same product is difficult because of the difference of data formatting and representation. The objective of this project was to provide first tools to facilitate this interconnection between the design process of the company and environmental data, considering incoming requirements from the new thermal regulation of 2020. This led to the creation of a SQL environmental database, based on environmental declarations, more adapted for statistical analysis than a document-based database. Specific data management functions were also developed to homogenise unit representation and to spot product performances for the purpose of multi-criteria analysis of products Finally, an estimation of the distinctiveness of products through a selection of key words was tested. The comparison of lists of words provided good performances for their classification into a limited number of lots. But it is not sufficient to identify items that can be related to the same construction product. So further works is needed into the creation of a semantic metric model of construction vocabulary.
33
Sigurjonsdottir, Hjördis. "Integration – A Lifetime Project : Analysis of the Integration Process of Quota Refugees in Iceland." Thesis, Stockholms universitet, Kulturgeografiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-131808.
Full textAbstract:
Due to an increased flow of refugees over the past few years, affairs of refugees have caught increased attention. The aim of this thesis is to analyze the integration process of an earlier group of quota refugees who came to rural Iceland in 1998, from former Yugoslavia. Eighteen years have passed and the refugees’ views of entering and living in Icelandic society will help to understand the process of integration and the role of migration in an ever-changing social context and in times of rapid globalization. The study aims to explore two questions: 1) How did the life events of the refugees affect their integration processes? 2) How did transnational practices impact the integration processes? In-depth interviews were carried out and a life course perspective was the method used for obtaining the refugees’ stories and life experiences, and to investigate their integration processes. The analysis draws on the theories of integration, life course perspective, transnationalism and social networks. This study indicates that transnational practices are beneficial for the lifetime project of integration. Access to an extended social network of relatives and co-ethnics also plays a crucial role. Another important element for integration is the feeling of normal life, supported by a feeling of security in the physical, economic and institutional sense.
34
Maviga, Tawanda. "Integration Practitioners Perspectives on the Integration Process of Newly Arrived Refugees in Malmö, Sweden." Thesis, Malmö universitet, Institutionen för globala politiska studier (GPS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-44807.
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Grooms, Daniel Douglas. "Optimization of hybrid dynamic/steady-state processes using process integration." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1752.
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Qin, Xiaoyun. "Simultaneous process and molecular design/selection through property integration." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4918.
Full textAbstract:
The overall purpose of this work is to develop systematic methodology for the
simultaneous design and selection of processes and molecules (materials). A propertybased
approach is used to develop an interface between process and molecular
design/selection. In particular, we focus on the problem of designing/selecting materials
that are used in the context of a recycle/reuse system of process streams and for energy
applications. Fresh and recycled resources (e.g., process streams, biomass, solvents, etc.)
are integrated with the process to satisfy property-based constraints for the process units
and to optimize the usage of the resources and the design of the process. For molecular
design, property operators for mixing streams and group contribution methods (GCM)
are used to consistently represent process sources, sinks, and different functional groups
on the same property-base. For material selection, property based criteria (e.g., heat rate,
high heating value, etc.) are used to bridge the process with material. This consistent
representation enables the definition of the optimization problem formulation for product
design while taking into consideration the recycle/reuse of process streams. In particular,
this dissertation addresses four integrated topics. First, a new graphical approach for
material targeting and substitution is presented. This graphical approach offers initial
solutions and valuable insights that can be effectively used for conceptual design and for
initializing mathematical programming techniques. Second, a mathematical optimization
approach is developed along with a decomposition-based global solution procedure for
material targeting and substitution using property integration. Third, an implementation
approach is developed to synthesize the details of a recycle/reuse process network design based on the targets identified through the graphical and/or the mathematical approaches.
Finally, property integration techniques are extended to a broader scope which deals with
the lifecycle analysis of biomass utilization for energy generation. A generic model is
developed to optimize the types and quantities of the feedstocks used to optimize power
generation with biomass-fossil fuel co-fed system. Important issues of biomass growth,
harvesting, transportation, processing, and disposal are included. Property-based tracking
and constraints are included in the analysis. Also, the issues associated with greenhouse
gas (GHG) emissions are incorporated in the analysis. Case studies are solved throughout
the dissertation to demonstrate the applicability of the developed procedures.
37
Ekelund, Fredrik. "Business Process Integration: An Evaluation of How to Connect Business Processes to the Integration Layer." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96217.
Full textAbstract:
The fact that information becomes more and more vital in organisations today is well known. Companies exchange large amount of data each day and therefore their administrating functions must be dynamic and flexible. As the applications tend to be more complex and increase in number as the company grows the requirements for integration of the different applications becomes even more important. The purpose of this master thesis work is to evaluate how Vetco Aibel shall enable business process integration in their IT organisation as well as recommend how to continue their integration work. The outcome of this work is a discussion of how Microsoft BizTalk Server 2006 can be used for business process integration in Vetco Aibel and a set of recommendations for how Vecto Aibel shall continue their future integration work. The work was initiated with a background study of integration concepts and technologies. Then, interviews with different Vetco Aibel employees were done to get an overview of their current IT solution. The proof of concept work was then initiated and finally a brief analysis of Vetco Aibel’s SPF-project was done. The master thesis work was carried out from July 2006 to November 2006.
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Nikraz, Magid. "Integration of operational tasks in chemical plants." Thesis, Nikraz, Magid (2007) Integration of operational tasks in chemical plants. PhD thesis, Murdoch University, 2007. https://researchrepository.murdoch.edu.au/id/eprint/741/.
Full textAbstract:
The overall, coordinated management of different operational tasks in a chemical plant can improve operational efficiency. These operational tasks can be hierarchically categorised, from the lowest to highest level, as: data acquisition; regulatory control; monitoring; data reconciliation; fault detection and diagnosis; supervisory control; scheduling; and planning. Although each of these tasks is responsible for a particular function, they are dependent on each other, which is why an approach wherein all the different tasks can be integrated into a single unified framework is desirable. While integration has important benefits such as a significant reduction in operator workload and improved decision making, its realisation presents considerable challenges. Few previous works have addressed this topic and even fewer have investigated recent computing paradigms which may greatly assist in the development of a unifying framework.
Multi-agent systems were introduced and investigated in this study as a possible means for achieving integration of operational tasks in chemical plants. Multi-agent systems are the subject of a sub-field of computing research known as agent-based computing. Agent-based computing represents a relatively recent and powerful high-level computing paradigm.
Initially, a number of software applications were developed for the purposes of this study to assist realisation of the operational tasks. To simplify the process of system development and provide guidance for those unfamiliar with multi-agent systems wishing to adopt the proposed technique, an extensive methodology was devised. The operational tasks were then integrated using the proposed methodology to form an integrated multi-agent system, with the pilot plant at Murdoch University being used as a test base for the solution. The results were positive and demonstrated that the proposed agent-based solution was able to effectively account for the pilot plant setting. It was concluded that, in addition to presently available integration techniques and base technologies, the agent-based approach to integration of operational tasks in chemical plants presents a viable alternative solution.
39
Nikraz, Magid. "Integration of operational tasks in chemical plants." Nikraz, Magid (2007) Integration of operational tasks in chemical plants. PhD thesis, Murdoch University, 2007. http://researchrepository.murdoch.edu.au/741/.
Full textAbstract:
The overall, coordinated management of different operational tasks in a chemical plant can improve operational efficiency. These operational tasks can be hierarchically categorised, from the lowest to highest level, as: data acquisition; regulatory control; monitoring; data reconciliation; fault detection and diagnosis; supervisory control; scheduling; and planning. Although each of these tasks is responsible for a particular function, they are dependent on each other, which is why an approach wherein all the different tasks can be integrated into a single unified framework is desirable. While integration has important benefits such as a significant reduction in operator workload and improved decision making, its realisation presents considerable challenges. Few previous works have addressed this topic and even fewer have investigated recent computing paradigms which may greatly assist in the development of a unifying framework.
Multi-agent systems were introduced and investigated in this study as a possible means for achieving integration of operational tasks in chemical plants. Multi-agent systems are the subject of a sub-field of computing research known as agent-based computing. Agent-based computing represents a relatively recent and powerful high-level computing paradigm.
Initially, a number of software applications were developed for the purposes of this study to assist realisation of the operational tasks. To simplify the process of system development and provide guidance for those unfamiliar with multi-agent systems wishing to adopt the proposed technique, an extensive methodology was devised. The operational tasks were then integrated using the proposed methodology to form an integrated multi-agent system, with the pilot plant at Murdoch University being used as a test base for the solution. The results were positive and demonstrated that the proposed agent-based solution was able to effectively account for the pilot plant setting. It was concluded that, in addition to presently available integration techniques and base technologies, the agent-based approach to integration of operational tasks in chemical plants presents a viable alternative solution.
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Fang, Miao. "Process Modeling and Execution in Non-Enterprise System Integration." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5557.
Full textAbstract:
Context. Manufacturing Execution Systems (MES) are information systems that manage manufacturing processes in factories. The execution of MES processes requires non-enterprise integration, which integrates MES applications, services, and automation systems within the factories. Objectives. We aim at developing a modeling approach that can be used to represent and execute MES processes. Having such an approach would help MES vendors to reduce the development cost to reconfigure systems, in order to achieve better business flexibility. Methods. In order to understand the state of the art of manufacturing modeling techniques, we perform a systematic literature review (SLR) in scientific article sources, including IEEE Xplore, ACM Digital Library, Compendex, Inspec, and Springer Link. In consideration of the criteria in modeling and executing MES processes, we evaluate the selected process modeling techniques. Based on the result of evaluation, we propose a three-view-based approach to support process execution. We develop a prototype to prove that an MES process can be executed by following our approach. We also conduct semi-structured interviews in industry to validate whether our proposed approach achieves the objectives. Results. In the SLR, 24 primary studies are selected. Our analysis reveals that existing modeling techniques have limitations to enable process execution. To overcome the limitation, we propose a three-view-based approach, which has an MES process view, an abstract plant view to represent the structure of technical systems, and a mapping view to enable the communication between MES tasks and the technical systems. We develop a prototype as the implementation of our approach, which comprises: a graphical editor for the abstract plant view, a generator of message routes for the mapping view, and a typical MES process to be executed in the context of a warehouse management system. The semi-structured interviews we conducted with three industrial experts show positive feedback to use and generalize our approach in industry, in case comprehensive tools can be established. Conclusions. Compared to the existing modeling techniques, the three-view-based approach is specifically tailored toward process execution. Based on the feedback from industry, we conclude that applying our approach provides the possibility to achieve better reconfigurability and flexibility of MES.
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Kazantzi, Vasiliki. "Novel visualization and algebraic techniques for sustainable development through property integration." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4930.
Full textAbstract:
The process industries are characterized by the significant consumption of fresh
resources. This is a critical issue, which calls for an effective strategy towards more
sustainable operations. One approach that favors sustainability and resource
conservation is material recycle and/or reuse. In this regard, an integrated framework is
an essential element in sustainable development. An effective reuse strategy must
consider the process as a whole and develop plant-wide strategies. While the role of
mass and energy integration has been acknowledged as a holistic basis for sustainable
design, it is worth noting that there are many design problems that are driven by
properties or functionalities of the streams and not by their chemical constituency. In this
dissertation, the notion of componentless design, which was introduced by Shelley and
El-Halwagi in 2000, was employed to identify optimal strategies for resource
conservation, material substitution, and overall process integration.
First, the focus was given on the problem of identifying rigorous targets for material
reuse in property-based applications by introducing a new property-based pinch analysis
and visualization technique. Next, a non-iterative, property-based algebraic technique,
which aims at determining rigorous targets of the process performance in materialrecycle
networks, was developed. Further, a new property-based procedure for
determining optimal process modifications on a property cluster diagram to optimize the
allocation of process resources and minimize waste discharge was also discussed. In
addition, material substitution strategies were considered for optimizing both the process
and the fresh properties. In this direction, a new process design and molecular synthesis methodology was evolved by using the componentless property-cluster domain and
Group Contribution Methods (GCM) as key tools in developing a generic framework
and systematic approach to the problem of simultaneous process and molecular design.
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Nie, Yisu. "Integration of Scheduling and Dynamic Optimization: Computational Strategies and Industrial Applications." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/380.
Full textAbstract:
This thesis study focuses on the development of model-based optimization strategies for the integration of process scheduling and dynamic optimization, and applications of the integrated approaches to industrial polymerization processes. The integrated decision making approaches seek to explore the synergy between production schedule design and process unit control to improve process performance. The integration problem has received much attention from both the academia and industry since the past decade. For scheduling, we adopt two formulation approaches based on the state equipment network and resource task network, respectively. For dynamic optimization, we rely on the simultaneous collocation strategy to discretize the differential-algebraic equations. Two integrated formulations are proposed that result in mixed discrete/dynamic models, and solution methods based on decomposition approaches are addressed. A class of ring-opening polymerization processes are used for our industrial case studies. We develop rigorous dynamic reactor models for both semi-batch homopolymerization and copolymerization operations. The reactor models are based on first-principles such as mass and heat balances, reaction kinetics and vapor-liquid equilibria. We derive reactor models with both the population balance method and method of moments. The obtained reactor models are validated using historical plant data. Polymerization recipes are optimized with dynamic optimization algorithms to reduce polymerization times by modifying operating conditions such as the reactor temperature and monomer feed rates over time. Next, we study scheduling methods that involve multiple process units and products. The resource task network scheduling model is reformulated to the state space form that offers a good platform for incorporating dynamic models. Lastly for the integration study, we investigate a process with two parallel polymerization reactors and downstream storage and purification units. The dynamic behaviors of the two reactors are coupled through shared cooling resources. We formulate the integration problem by combining the state space resource task network model with the moment reactor model. The case study results indicate promising improvements of process performances by applying dynamic optimization and scheduling optimization separately, and more importantly, the integration of the two.
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Pinar, Derya. "Debates On European Single Currency On European Integration Process." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12608144/index.pdf.
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This thesis looks at how European Single Currency (EURO) that began circulating on January 2002 as a legal tender will affect the European integration process. Because money has been accepted as one of the founding elements of a state for centuries, whether the Euro will be effective in the direction of a probable &ldquoUnited States of Europe&rdquo
or not? Firstly, theoretical and historical roots of European integration are explained in the thesis as the basis of economic integration. The foundation, the stages and institutional mechanism of Economic and Monetary Union (EMU) is looked at throughout the thesis with the theories of Regional Economic Integration and Optimum Currency Areas (OCA). The thesis reaches the conclusion that economic integration may gradually bring about the need for political integration in the EU, but not necessarily.
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Butler, Deborah Lynne. "The role of expectations in the feature integration process." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25360.
Full textAbstract:
According to Treisman (Treisman and Schmidt, 1982) feature detection occurs in parallel, while the correct integration of detected features into an object requires focal attention. She has proposed that in the absence of attention, subjects will perceive "illusory conjunctions", or invented objects constructed out of features actually present in a display. The present experiments were designed to examine how the presence of expectations might affect the feature integration process and the construction of illusory conjunctions. The results of these experiments suggest that expectations do affect the perception of simple objects: subjects make more illusory conjunctions in the absence of expectations, and the perception of expected objects is the most accurate. However, the data indicate that expectations do not exert this influence by guiding the feature integration process, because subjects do not tend to construct expected objects out of features appearing in a display. As a result, it is likely that expectations are influential not by determining the construction of object files, but by speeding up the identification of the features of expected objects, so that focal attention can be applied, and object files constructed, more efficiently. As a result, the perception of expected objects can be accurately accomplished in a shorter amount of time.Arts, Faculty of
Psychology, Department of
Graduate
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Moosawi, Athraa. "A business process modelling approach to enterprise application integration." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503028.
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Polyak, S. "An integration framework for managing rich organisational process knowledge." Thesis, University of Edinburgh, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.660668.
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The problem we have addressed in this dissertation is that of designing a pragmatic framework for integrating the synthesis and management of organisational process knowledge which is based on domain-independent Al planning and plan representations. Our solution has focused on a set of framework components which provide methods, tools and representations to accomplish this task. In the framework we address a life-cycle of this knowledge which begins with a methodological approach to acquiring information about the process domain. We show that this initial domain specification can be translated into a common constraint-based model of activity (based on the work of Tate, 1996) which can then be operationalized for use in an Al planner. This model of activity is ontologically underpinned and may be expressed with a flexible and extensible language based on a sorted first-order logic. Synthesised or modified processes/plans can be translated to and from the common representation in order to support knowledge sharing, visualisation and mixed-initiative interaction. This work united past and present Edinburgh research on planning and infused it with perspectives from design rationale, requirements engineering, and process knowledge sharing. The implementation has been applied to a portfolio of scenarios which include process examples from business, manufacturing, construction and military operations.
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McGuigan, Paul Francis. "Process integration and simulation of a nitric acid plant." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238994.
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Wang, Kai. "Novel process integration schemes for Cu/LOW-k technology." Thesis, University of Newcastle Upon Tyne, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.446189.
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Delaby, Olivier. "Process integration for the reduction of flue gas emissions." Thesis, University of Manchester, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387206.
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Dhallu, N. S. "Synthesis of process designs with potential for heat integration." Thesis, London South Bank University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233001.
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