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Relevant bibliographies by topics / Concurrent design

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Academic literature on the topic 'Concurrent design'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 March 2024

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Journal articles on the topic "Concurrent design"

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FINGER, SUSAN, MARK S. FOX, FRIEDRICH B. PRINZ, and JAMES R. RINDERLE. "CONCURRENT DESIGN." Applied Artificial Intelligence 6, no. 3 (July 1992): 257–83. http://dx.doi.org/10.1080/08839519208949955.

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Carroll, Bob. "Putting concurrency in concurrent product design teams." National Productivity Review 17, no. 4 (1998): 17–22. http://dx.doi.org/10.1002/npr.4040170405.

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Gek Woo Tan, C. C. Hayes, and M. Shaw. "Concurrent Product Design." IEEE Potentials 16, no. 2 (1997): 9–12. http://dx.doi.org/10.1109/mp.1997.581375.

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Polini, Wilma. "Concurrent tolerance design." Research in Engineering Design 27, no. 1 (September 16, 2015): 23–36. http://dx.doi.org/10.1007/s00163-015-0203-2.

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Lipeng Cao and J. P. Krusius. "Concurrent packaging architecture design." IEEE Transactions on Components, Packaging, and Manufacturing Technology: Part B 18, no. 1 (1995): 66–73. http://dx.doi.org/10.1109/96.365491.

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Filho, Antonio Carlos Papes, and Rubens Maciel Filho. "Concurrent Engineering Reactor Design." Chemie Ingenieur Technik 73, no. 6 (June 2001): 685. http://dx.doi.org/10.1002/1522-2640(200106)73:6<685::aid-cite6852222>3.0.co;2-0.

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Knezevic, Suzana, Rade Karamarkovic, Vladan Karamarkovic, and Nenad Stojic. "Radiant recuperator modelling and design." Thermal Science 21, no. 2 (2017): 1119–34. http://dx.doi.org/10.2298/tsci160707232k.

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Recuperators are frequently used in glass production and metallurgical processes to preheat combustion air by heat exchange with high temperature flue gases. Mass and energy balances of a 15 m high, concurrent radiant recuperator used in a glass fiber production process are given. The balances are used: for validation of a cell modeling method that predicts the performance of different recuperator designs, and for finding a simple solution to improve the existing recuperator. Three possible solutions are analyzed: to use the existing recuperator as a countercurrent one, to add an extra cylinder over the existing construction, and to make a system that consists of a central pipe and two concentric annular ducts. In the latter, two air streams flow in opposite directions, whereas air in the inner annular passage flows concurrently or countercurrently to flue gases. Compared with the concurrent recuperator, the countercurrent has only one drawback: the interface temperature is higher at the bottom. The advantages are: lower interface temperature at the top where the material is under maximal load, higher efficiency, and smaller pressure drop. Both concurrent and countercurrent double pipe-in-pipe systems are only slightly more efficient than pure concurrent and countercurrent recuperators, respectively. Their advantages are smaller interface temperatures whereas the disadvantages are their costs and pressure drops. To implement these solutions, the average velocities should be: for flue gas around 5 m/s, for air in the first passage less than 2 m/s, and for air in the second passage more than 25 m/s.

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Elvekrok, Dag Runar. "Concurrent Engineering in Ship Design." Journal of Ship Production 13, no. 04 (November 1, 1997): 258–69. http://dx.doi.org/10.5957/jsp.1997.13.4.258.

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Concurrent engineering is a systematic approach for integration and concurrent design of products. The systematic approach intends to consider all elements influencing the products and their related processes during the product life-cycle, such as manufacturing, support, costs, quality, user requirements etc. Especially the engineering design phase should be considered for improvements. This paper presents some of the major and most acknowledged concepts, ideas and principles of concurrent engineering. They are among others:trends and demands to product development time and product life-timeintroduction of a concurrent engineering environment, including the forces, dimensions, mechanisms and targets of concurrent engineeringthe design process, including considerations regarding to the quality and extent of iteration loops and construction of improved design processesquality function deployment, a method for identifying and managing requirements which is based on interfunctionality and interdisciplinary project-teams. The paper also discusses concurrent engineering in proportion to traditional design theories. The human and organization aspects in concurrent engineering are treated superficially. Finally, some applied concepts, principles and methods are briefly presented. This paper gives an overview and introduction to concurrent engineering.

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AREIAS, MIGUEL, and RICARDO ROCHA. "Table space designs for implicit and explicit concurrent tabled evaluation." Theory and Practice of Logic Programming 18, no. 5-6 (July 27, 2018): 950–92. http://dx.doi.org/10.1017/s147106841800039x.

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AbstractOne of the main advantages of Prolog is its potential for theimplicit exploitation of parallelismand, as a high-level language, Prolog is also often used as a means toexplicitly control concurrent tasks. Tabling is a powerful implementation technique that overcomes some limitations of traditional Prolog systems in dealing with recursion and redundant sub-computations. Given these advantages, the question that arises is if tabling has also the potential for the exploitation of concurrency/parallelism. On one hand, tabling still exploits a search space as traditional Prolog but, on the other hand, the concurrent model of tabling is necessarily far more complex, since it also introduces concurrency on the access to the tables. In this paper, we summarize Yap's main contributions to concurrent tabled evaluation and we describe the design and implementation challenges of several alternative table space designs for implicit and explicit concurrent tabled evaluation that represent different trade-offs between concurrency and memory usage. We also motivate for the advantages of usingfixed-sizeandlock-freedata structures, elaborate on the key role that the engine'smemory allocatorplays on such environments, and discuss how Yap's mode-directed tabling support can be extended to concurrent evaluation. Finally, we present our future perspectives toward an efficient and novel concurrent framework which integrates both implicit and explicit concurrent tabled evaluation in a single Prolog engine.

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Tseng, Mitchell M., and Jianxin Jiao. "Concurrent design for mass customization." Business Process Management Journal 4, no. 1 (March 1998): 10–24. http://dx.doi.org/10.1108/14637159810200111.

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Dissertations / Theses on the topic "Concurrent design"

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Hu, Cheng Low Steven H. Low Steven H. "Concurrent system design using Flow /." Diss., Pasadena, Calif. : Caltech, 2007. http://resolver.caltech.edu/CaltechETD:etd-05252007-140855.

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Evbuomwan, Nosayaba Francis Osa. "Design function deployment : a concurrent engineering design system." Thesis, City University London, 1994. http://openaccess.city.ac.uk/7540/.

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The current state of activities in the design and manufacturing industry is marked by the various CAD/CAM/CAE systems which exist as islands of automation, and are used by engineers and designers in a non-integrated and ill-structured way. Thus the design problem is examined from separate and different perspectives, rather than as a whole. The goal of this research, is to develop a comprehensive, integrated and generic design system, that will ensure the realisation of concurrent engineering in practice. To this end, Design Function Deployment (DFD) has been developed. DFD enables the capture of customers' requirements, the establishment of design specifications and constraints in a solution neutral form, the generation of conceptual designs (architectures), the development of detailed designs layouts), the selection of materials and associated manufacturing processes and the development of suitable production plans. The generated design solutions are optimised against a composite set of multi-criteria (attributes) in a concurrent manner for key factors such as performance, robustness and cost as well as other life cycle issues (manufacture, assembly, serviceability, reliability, environment, etc) in order to choose the most satisfying design. DFD provides a recipe of design methods to support the designer or design team at any stage of the design process. The optimisation process involves the use of these supporting design tools (methods) encapsulated within it. DFD also provides an integrated product modelling environment which integrates both textual and geometric design information, and enables the capture of other design information related to design intent, rationale and history. The research that led to the evolution and development of DFD involved (a) a detailed investigation and research on Quality Function Deployment, QFD, a technique well suited for capturing and translating customer requirements into design specifications, (b) an extensive review of design philosophies, models, methods and systems and (c) an extensive investigation into concurrent engineering. The findings of this research has led to the development of the structure of the DFD system, which incorporates (1) a prescriptive design model, (2) a suite of design methods and (3) supporting knowledge/rulebases and databases, which are used for the generation of the design solution space and the optimal selection of the most satisfying design for subsequent implementation.

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Zhu, Xun. "Static verification of concurrent system design." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18732.

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Elaborating a correct design of a concurrent system is extremely difficult. In part this is due to the infinite number of possible system runtime behaviors that result from the concurrent (or pseudo-concurrent) execution of interacting processes or threads. Data consistency, deadlock, starvation and fairness issues are the most well-known problems encountered in concurrent systems. Accurate concurrent system design verification approaches require an expensive system runtime behavior analysis and consequently result in prohibitively high development costs (i.e. for testing). In this thesis we try to address this problem by presenting several static approaches that can help the developer of a concurrent system during the design phase. In the first part of the thesis we present an approach that can analyze an existing concurrent system design to detect potential deadlock situations. This is done by mapping object interaction diagrams such as sequence diagrams to System Synchronization Hasse diagrams, which are then analyzed to detect deadlock cycles. Since the approach is static, it is overly pessimistic, meaning that it is possible that the algorithm detects a deadlock that, in reality, cannot occur. On the other hand, if the algorithm cannot detect any deadlocks, the developer can be sure that the design is deadlock-free. In the second part of the thesis we show how a concurrency-enriched specification can be transformed into a system application-level consistent design. The approach starts with concurrency-aware OCL-based operation schemas that describe all system functionality using pre-, rely-, and post-conditions. These schemas are then mapped to Rely diagrams. Based on the rely diagrams, sequence diagrams describing the concurrent system design are elaborated. The approach uses locks to ensure consistency and deadlock freedom. We then further show how these locks can be used to enforce certain fairness policies. The usefulness of our approach is demonstrated
L'élaboration d'une bonne architecture dans un système concurrent est une tâche extrêmement difficile. Ceci s'explique par un nombre infini de combinaison de comportement d'exécution possible causé par l'interaction des processus exécutant de fac¸on concurrente (ou pseudoconcurrente). La consistance de donnée, l'interblocage, l'insuffisance de ressources et le partage juste des ressources sont les problhmes les mieux connus dans les environnements concurrents. La vérification exacte d'une architecture de système concurrent est une solution très dispendieuse, nécessitant des analyses de comportement d'exécution qui s'avère beaucoup trop coûteux. Cette thèse adresse ce problème en proposant plusieurs techniques statiques qui peuvent aider un développeur d'un système concurrent pendant la phase d'analyse. Dans la première partie de cette thèse, nous présentons une technique qui permet d'analyser l'architecture d'un système concurrent existant pour y découvrir des situations potentielles d'interblockage. Cette analyse nécessité le mappage de diagrammes d'interaction d'objet, tel que les diagrammes de séquence, à des diagrammes de Synchronisation de Systhme Hasse, qui peuvent être analysés à leur tour pour y découvrir des interblockages. Puisque la technique est statique, elle est sur-pessimiste. Donc, elle peut trouver des interblockages qui n'existe pas vraiment. Cependant, si aucun interblockage est trouvé, alors le programmes peut être assuré qu'aucun interblockage ne s'y trouve. Dans la deuxième section de la thèse, nous démontrons comment des spécifications munies d'information concurrent, peut être transformées en spécification sans problème d'interblockage. Cette technique débute avec des schémas opérationnels OCL munies d'information concurrent, qui décrivent toutes les fonctionnalités du système avec les préconditions, les poste-conditions et les conditions de dépendance. Ces schémas sont alors mappés à$

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Chun-Kit, Kwong. "A computer-aided concurrent design system." Thesis, University of Warwick, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263309.

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Bradley, Hugh D. "Aggregate process planning and manufacturing assessment for concurrent engineering." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4719/.

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The introduction of concurrent engineering has led to a need to perform product development tasks with reduced information detail. Decisions taken during the early design stages will have the greatest influence on the cost of manufacture. The manufacturing requirements for alternative design options should therefore be considered at this time. Existing tools for product manufacture assessment are either too detailed, requiring the results of detailed design information, or too abstract, unable to consider small changes in design configuration. There is a need for an intermediate level of assessment which will make use of additional design detail where available, whilst allowing assessment of early designs. This thesis develops the concept of aggregate process planning as a methodology for supporting concurrent engineering. A methodology for performing aggregate process planning of early product designs is presented. Process and resources alternatives are identified for each feature of the component and production plans are generated from these options. Alternative production plans are assessed in terms of cost, quality and production time. A computer based system (CESS, Concurrent Engineering Support System) has been developed to implement the proposed methodology. The system employs object oriented modelling techniques to represent designs, manufacturing resources and process planning knowledge. A product model suitable for the representation of component designs at varying levels of detail is presented. An aggregate process planning functionality has been developed to allow the generation of sets of alternative plans for a component in a given factory. Manufacturing cost is calculated from the cost of processing, set-ups, transport, material and quality. Processing times are calculated using process specific methods which are based on standard cutting data. Process quality cost is estimated from a statistical analysis of historical SPC data stored for similar operations performed in the factory, where available. The aggregate process planning functionality has been tested with example component designs drawn from industry.

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Smith, Nigel. "A concurrent approach to component layout." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285937.

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Tan, Ah Kat, and n/a. "Product information management in concurrent design systems." University of Canberra. Design and Architecture, 2003. http://erl.canberra.edu.au./public/adt-AUC20050707.092604.

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In this thesis, the management of product information in concurrent design systems has been investigated with particular reference to product development in small and medium enterprise (SME) industry and design education at polytechnic level in Singapore. From a critical review of the relevant literature on product design and development processes, concurrent engineering, concurrent design systems, product data management and related methods, it is found that there is a clear need for a new design of a system for organizing and managing product information in a concurrent design environment in the above contexts. This finding has led to the development of a conceptual rationale, termed the Design Tensor Method, and the design and development of an innovative product information management system called PRIMAS. PRIMAS is a systematic methodology for the classification, organization, integration, communication, storage and management of product information in the product development process. A software prototype based on PRIMAS has been subsequently developed. PRIMAS along with its conceptual principles have been applied and tested in a product design project in a tertiary educational institution and in two significant industrial product development projects based respectively in two SMEs. Positive evaluation feedback on PRIMAS has been obtained in these studies. The product development projects investigated with PRIMAS have also produced outcomes that meet the original specified design requirements. The findings from this research have led to the conclusion that PRIMAS is a viable product information management system that can be used effectively for managing product information in concurrent design projects in SME industry and design education. Substantial PRIMAS databases of useful product information have been compiled for the product development projects investigated with PRIMAS. Finally, recommendations are made for future research.

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Wang, Xiao Bing. "Concurrent design towards global textile/apparel development." Thesis, University of Leeds, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427041.

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Barker, Robin. "A knowledge-level model for concurrent design." Thesis, Sheffield Hallam University, 2002. http://shura.shu.ac.uk/19314/.

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The concurrent approach to engineering design, concurrent design, implies that expert knowledge regarding a number of different downstream life-cycle perspectives (such as assembly, manufacture, maintainability etc) should all be considered at the design stage of a product's life-cycle. Extensive and valuable work has been done in developing computer aids to both the design and concurrent design processes. However, a criticism of such tools is that their development has been driven by computational considerations and that the tools are not based on a generally accepted model of the design process. Different models of design have been developed that fall into a number of paradigms, including cognitive and knowledge-level models. However, while there is no generally accepted cognitive model describing the way designers and design teams think, the concept of the knowledge-level has enabled a more pragmatic approach to be taken to the development of models of problem-solving activity. Different researchers have developed knowledge-level models for the design process, particularly as part of the CommonKADS methodology (one of the principal knowledge-based system development methodologies currently in use). These design models have significantly extended design thinking in this area. However, the models do not explicitly support the concurrent design process. I have developed top-down knowledge-level models of the concurrent design process by analysis of published research and discussions with academics. However some researchers have criticised models for design that are not based on analysis of 'real-life' design. Hence I wished to validate my top-down models by analysing how concurrent design actually occurs in a real-life industrial setting. Analysing concurrent design activity is a complex process and there are no definitive methodological guidelines as to the 'right way' to do it. Therefore I have developed and utilised a novel method of knowledge elicitation and analysis to develop 'bottom-up' models for concurrent design. This is based on a number of different approaches and was done in collaboration with a number of different design teams and organisations who are engaged in the concurrent design of mechanically based products. My resulting knowledge-level models are an original contribution to knowledge. They suggest that the concurrent design process consists of a number of discrete sub-tasks of propose, critique and negotiate. These models have been instantiated as generic model templates, using the modelling formalisms specified by CommonYADS. These models have been implemented on a software tool, the CommonKADS workbench, in order to provide support for developers of computer-based systems for concurrent design.

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Rangarajan, Bharadwaj. "Robust concurrent design of automobile engine lubricated components." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/18897.

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Books on the topic "Concurrent design"

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Concurrent engineering fundamentals. Upper Saddle River, N.J: Prentice Hall PTR, 1996.

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J, Fenves Steven, ed. Concurrent computer-integrated building design. Englewood Cliffs, N.J: PTR Prentice Hall, 1994.

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Schmidt, Rolf F., and Martin Schmidt, eds. Computer Aided Concurrent Integral Design. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80027-6.

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1941-, Schmidt R. F., and Schmidt, M. 1963 Nov. 10-, eds. Computer aided concurrent integral design. Berlin: Springer, 1996.

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CAD of concurrent computers. Letchworth, Hertfordshire, England: Research Studies Press, 1985.

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Q, Huang George, ed. Design for X: Concurrent engineering imperatives. London: Chapman & Hall, 1996.

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Huang, G. Q. Design for X: Concurrent engineering imperatives. Dordrecht: Springer Netherlands, 1996.

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Q, Huang G., and School of Engineering, University of Abertay, Dundee., eds. Design for X: Concurrent engineering imperatives. London: Chapman & Hall, 1996.

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Kwong, Chun-Kit. A compuer-aided concurrent design system. [s.l.]: typescript, 1996.

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1948-, Crowe David, and Strain-Clark Peter 1945-, eds. Specification and design of concurrent systems. London: McGraw-Hill Book Co., 1994.

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Book chapters on the topic "Concurrent design"

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O’Brien, C., and S. J. Smith. "Design maturity." In Concurrent Engineering, 75–87. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1298-7_4.

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Field, Ambrose. "Concurrent design." In Creative and Critical Projects in Classroom Music, 209–16. Abingdon, Oxon; New York, NY : Routledge, 2020.: Routledge, 2020. http://dx.doi.org/10.4324/9780367816179-24.

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Syan, C. S., and K. G. Swift. "Design for manufacture." In Concurrent Engineering, 101–15. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1298-7_6.

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Syan, C. S., and K. G. Swift. "Design for assembly." In Concurrent Engineering, 117–36. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1298-7_7.

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Anderson, David M. "Concurrent Engineering." In Design for Manufacturability, 37–114. Second edition. | Boca Raton : Taylor & Francis, 2020.: Productivity Press, 2020. http://dx.doi.org/10.4324/9780429285981-3.

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Tayyari, Fariborz. "Design for human factors." In Concurrent Engineering, 297–325. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3062-6_16.

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Bahrami, Ali, and Cihan H. Dagli. "Models of design processes." In Concurrent Engineering, 113–26. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3062-6_7.

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Noble, James S. "Economic design in concurrent engineering." In Concurrent Engineering, 352–71. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3062-6_18.

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Nita, Stefania Loredana, and Marius Mihailescu. "Concurrency Design Patterns." In Practical Concurrent Haskell, 177–94. Berkeley, CA: Apress, 2017. http://dx.doi.org/10.1007/978-1-4842-2781-7_11.

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Thurston, Deborah L., and Angela Locascio. "Multiattribute design optimization and concurrent engineering." In Concurrent Engineering, 207–30. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3062-6_11.

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Conference papers on the topic "Concurrent design"

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Birmingham, William P., and Joseph G. D’Ambrosio. "Agency in Concurrent Engineering." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/dtm-8749.

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Abstract We have developed a formal process for concurrent engineering that maximizes concurrency in the CE enterprise through decentralized, distributed decision making, and optimizes across the CE enterprise by (minimally) coordinating design and manufacturing decisions by enforcing feasibility and preferential dependencies. We call this process hierarchical concurrent engineering (HCE). A central idea in this work is decentralization (and concomitant distribution), where we attempt to minimally control the actions (decision making) of engineers. The HCE decision-making model is a way of describing the network of decision processes needed for a CE enterprise. This model extends traditional “influence diagrams” as it incorporates constraints and multiple decision makers. We also present a software agent architecture that implements the HCE decision model, and we show how this model naturally leads to design processes, which are sequences of coordinated decisions.

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Karandikar, H. M., J. Rao, and F. Mistree. "Sequential vs. Concurrent Formulations for the Synthesis of Engineering Designs." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0139.

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Abstract Modeling and gaining an understanding of the interaction between information from design and from manufacturing is an important step in developing techniques and methods for concurrent engineering. In this paper, the role of optimization techniques in the product development process in a concurrent engineering framework is examined. Through arguments based in optimization theory, it is demonstrated that a concurrent approach to designing for manufacture problems is superior to a sequential one. By extension, this applies to designing for other life-cycle processes. Results which illustrate the point are presented from a comprehensive, non-textbook case study in design using composite materials and dealing with the integration of analysis, dimensional synthesis, and manufacturing. The case study is tackled by using Decision Support Problems. The focus in the paper is on understanding the ramifications of considering life-cycle processes concurrently.

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Yoshimura, Masataka, and Hisaichi Yanagi. "Concurrent Design Implementing Aesthetic Factors." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/dac-5800.

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Abstract In order to obtain product designs which maximize their appeal to users, a concurrent product design method is proposed in which aesthetic factors are implemented during conventional product design. Subjective attributes, corresponding to aesthetic factors, are evaluated concurrently with analytically obtained objective attributes of the product’s characteristics. The interaction of these subjective and objective attributes, as it relates to the product’s utility and manufacturing cost, is clarified. Then, the solution which has the minimum ratio of manufactured cost relative to the user’s expected product price is selected as the optimum design solution. Applied examples pertaining to robot designs are given, to demonstrate these methodologies.

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Xiong GuangLeng and Li Tao. "Robust concurrent design." In Proceedings of American Control Conference. IEEE, 2001. http://dx.doi.org/10.1109/acc.2001.946156.

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Tappeta, Ravindra V., and John E. Renaud. "A Comparison of Equality Constraint Formulations for Concurrent Design Optimization." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/eim-1423.

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Abstract This paper investigates a concurrent approach for design optimization. The method of Simultaneous ANalysis and Design (SAND) is tested in application to three Multidisciplinary Design Optimization (MDO) test problems. A Generalized Reduced Gradient (GRG) optimizer and a Sequential Quadratic Programming (SQP) optimizer are compared with respect to their efficacy in handling three different forms of equality constraints referred to as compatibility constraints in the SAND based optimization procedure. Results highlight the need for both strategies in application of SAND based design to different engineering test problems. More importantly significant savings in the number of analyses required for design optimization are observed when using the SAND approach of concurrent design. SAND based design delivers on the promise of concurrent engineering, namely to develop optimal designs, working concurrently, while reducing design cycle time.

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RICCI, PETER, and JEFFREY HALE. "Cost-conscious concurrent engineering." In Aircraft Design and Operations Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-3152.

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Guo, Wei, Jianzhong Cha, Qiang Xue, and Liming Si. "A Case Study on Concurrent Design." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0293.

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Abstract Based on the methodology and theory proposed in (Cha and Guo, 1993) for automated concurrent design process, this paper presents a concrete engineering case practice to illustrate how to establish a descriptive model and a cognitive model for concurrent design process, as well as how to develop a computable model for the computer system to implement the automated concurrent design process. Also, a special emphasis is given to the aspects of management, control and coordination on concurrent design process, which is considered as key techniques for automated concurrent design system.

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Sandén, Bo. "Design of concurrent software." In Tutorial proceedings. New York, New York, USA: ACM Press, 1995. http://dx.doi.org/10.1145/216591.216593.

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Xue, Deyi, and Zuomin Dong. "Optimal Fuel Cell System Design Considering Functional Performance and Production Costs." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dac-3971.

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Abstract In this work the optimization-based, integrated concurrent design method is extended to a general mechanical system — the transportation fuel cell system. A general optimal design model considering both functional performance and production costs is first introduced. Mathematical models of the functional performance and production costs of the Ballard fuel cell system are then discussed. A joint performance and cost optimization is carried out using the Ballard fuel cell system to demonstrate the approach. The optimization concurrently takes into account of two functional performance aspects and production costs to identify the optimal values of two key design variables. The work is a continuation of the authors’ earlier research on integrated concurrent engineering design.

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Rinderle, James R., and V. Krishnan. "Constraint Reasoning in Concurrent Design." In ASME 1990 Design Technical Conferences. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/detc1990-0108.

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Abstract One paradigm of concurrent design is based on the simultaneous consideration of a broad range of life-cycle constraints including those arising from function, manufacturing and maintenance. This simultaneous treatment of life-cycle issues results in a multitude of constraints, which not only increase the complexity of finding a design solution, but also make it difficult to understand the trends and interactions underlying the design. It is our goal to enhance the designer’s ability to identify and discriminate those constraints that critically impact the design from those that are irrelevant. We propose an interval analysis based approach, which is augmented with monotonicity and dominance principles. The approach helps in identifying regions of the design space where constraints possess certain desirable properties. It also enables reasoning with constraints in these regions. The regional inferences can then be reassembled to obtain global results. These ideas have been applied in the concurrent design of a fan blade, to identify the dominant, active and redundant constraints, enabling the designer to more clearly perceive and base his decisions on the critical design consideration. Furthermore, the identification of dominant constraints permits the easy evaluation of the significance of newly asserted constraints and frequently facilitates the automatic formulation of noniterative constraint satisfaction methods which guarantee a globally optimal design.

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Reports on the topic "Concurrent design"

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CHARLES STARK DRAPER LAB INC CAMBRIDGE MA. DARPA Concurrent Design/Concurrent Engineering Workshop Held in Key West, Florida on December 6-8, 1988. Fort Belvoir, VA: Defense Technical Information Center, December 1988. http://dx.doi.org/10.21236/ada225128.

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Cutkosky, Mark R. Final Report for: Supporting Planning in Concurrent Design Environments. Fort Belvoir, VA: Defense Technical Information Center, December 1991. http://dx.doi.org/10.21236/ada327601.

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Fuqua, Norman B. Introduction to Concurrent Engineering: Electronic Circuit Design and Production Applications. Fort Belvoir, VA: Defense Technical Information Center, September 1992. http://dx.doi.org/10.21236/ada278405.

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Shatz, S. Using Petri Nets to Support Concurrent Software Analysis and Design Automation. Fort Belvoir, VA: Defense Technical Information Center, October 1999. http://dx.doi.org/10.21236/ada371497.

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McCallum, Jacob Bryan. Addressing Design Basis Events and the Concurrent Loss of Multiple Parameters. Office of Scientific and Technical Information (OSTI), March 2019. http://dx.doi.org/10.2172/1501771.

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Walker, D. W. The design of a standard message passing interface for distributed memory concurrent computers. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/10193294.

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Rice, James. The Design and Implementation of Poligon, a High-Performance, Concurrent Blackboard System Shell,. Fort Belvoir, VA: Defense Technical Information Center, November 1989. http://dx.doi.org/10.21236/ada326585.

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Fuchs, W. K., and Clifford Lau. Structure-Based Design and Analysis for Concurrent Error Detection and Recovery in Reliable Electronic Systems. Fort Belvoir, VA: Defense Technical Information Center, July 1992. http://dx.doi.org/10.21236/ada257790.

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Alvargonzález, Piluca, Marina Asensio, Cristina Barceló, Olympia Bover, Lucía Cobreros, Laura Crespo, Najiba El Amrani, et al. The Spanish Survey of Household Finances (EFF): description and methods of the 2020 wave. Madrid: Banco de España, February 2024. http://dx.doi.org/10.53479/36089.

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The Spanish Survey of Household Finances 2020 (EFF2020) provides detailed information on the income, assets, debt and spending of Spanish households as at end-2020. Given the lack of alternative statistical sources that provide detailed household-level information on these variables for the same households, the concurrence of this edition of the survey with the COVID-19 pandemic makes it unique, allowing for all these variables to be analysed together in an exceptional setting. As in previous editions, this paper provides a detailed description of the most relevant methodological aspects of the design and implementation of the 2020 edition, including: the sample design, the questionnaire, the data collection process, the validation of the data, the computation of weights and the imputation procedures. In addition, it also describes the most important methodological changes that had to be implemented as a result of the pandemic, mainly the interviewing mode, which was switched from CAPI to CATI.

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Madu, Laura, Jacqueline Sharp, and Bobby Bellflower. Efficacy of Integrating CBT for Mental Health Care into Substance Abuse Treatment in Patients with Comorbid Disorders of Substance Abuse and Mental Illness. University of Tennessee Health Science Center, April 2021. http://dx.doi.org/10.21007/con.dnp.2021.0004.

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Abstract: Multiple studies have found that psychiatric disorders, like mood disorders and substance use disorders, are highly comorbid among adults with either disorder. Integrated treatment refers to the treatment of two or more conditions and the use of multiple therapies such as the combination of psychotherapy and pharmacotherapy. Integrated therapy for comorbidity per numerous studies has consistently been superior to the treatment of individual disorders separately. The purpose of this QI project was to identify the effectiveness of Cognitive Behavioral Therapy (CBT) instead of current treatment as usual for treating Substance Use Disorder (SUD) or mental health diagnosis independently. It is a retrospective chart review. The review examines CBT's efficacy for engaging individuals with co-occurring mood and substance u se disorders in treatment by enhancing adherence and preventing disengagement and relapse. Methods: Forty adults aged 26-55 with a DSM-IV diagnosis of a mood disorder of Major Depressive Disorder and/or anxiety and concurrent substance use disorder (at least weekly use in the past month). Participants received 12 sessions of individual integrated CBT treatment delivered with case management over a 12-week period. Results: The intervention was associated with significant improvements in mood disorder, substance use, and coping skills at 4, 8, and 12 weeks post-treatment. Conclusions: These results provide some evidence for the effectiveness of the integrated CBT intervention in individuals with co-occurring disorders. Of note, all psychotherapies are efficacious; however, it would be more advantageous to develop a standardized CBT that identifies variables that facilitate treatment outcomes specifically to comorbid disorders of substance use and mood disorders. It is concluded that there is potentially more to be gained from further studies using randomized controlled designs to determine its efficacy.

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