In principle, the entire world can exploit ubiquitous and pervasive systems to great societal benefits. In practice, however, there is as yet no fundamental basis or widely accepted programming models for such systems...
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In this paper we present initial results for implementing a constraint programming solver on a massively parallel supercomputer where coordination between processing elements is achieved through message passing. Previ...
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this paper describes an academic structural analysis system based on user-friendly environment philosophy called AMATE for planar and space frames. the mathematical representation of frame is done using a boundary ele...
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ISBN:
(纸本)9781905088416
this paper describes an academic structural analysis system based on user-friendly environment philosophy called AMATE for planar and space frames. the mathematical representation of frame is done using a boundary element methodology, and a convenient strategy is used to obtain the global influence matrices of the frame from the contribution of each local integral equations of a specific bar. this user-friendly system is implemented using ObjectARX library and Visual Lisp in order to customize AutoCAD Program and then to provide the graphical construction for geometry, mesh information, and other requirements of the boundary element model. For post-processing stage libraries can be run in order to complete the analysis without quitting the customized environment. Numerical examples are shown in order to illustrate the feasibility of present academic customized package.
Given the increasing size and complexity of today's systems, reusability is an important quality aspect. In this work we consider development and reuse of reusable components in the context of agile methods. To di...
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ISBN:
(纸本)9780769542416
Given the increasing size and complexity of today's systems, reusability is an important quality aspect. In this work we consider development and reuse of reusable components in the context of agile methods. To distinguish the proposed approach from the more established systematic reuse approaches we call our proposal component recycling instead of component reuse. For the development of recyclable components we show how inherent characteristics of agile methods, particularly the provision of useful and complete partial components during the lifecycle, can be used constructively for the development of components. these components are placed in a component repository for later recycling. the requirements implemented at each iteration serve as the design rationale for the components and distinguish earlier components from their later versions providing tracing.
this paper describes modifications of FETI-DP for coercive variational inequalities as the usage of corner nodes on the contact interface through the additional condition that preserves the nonpenetration and extensio...
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ISBN:
(纸本)9781905088416
this paper describes modifications of FETI-DP for coercive variational inequalities as the usage of corner nodes on the contact interface through the additional condition that preserves the nonpenetration and extension of lumped preconditioner. the corner mesh on the contact interface results in better convergence of the method for both systems - unpreconditioned and preconditioned one, because of better error propagation across the nonlinear interface and because of preconditioning of nonlinear steps. Significant modification making from FETI-DP the method of new type is based on definition of all nodes on the contact zone as the corners, i.e. constraint matrix with inequality conditions considers only corner nodes. this approach enable us the splitting of the problem into a very small nonlinear one with Lagrange multipliers for inequalities as unknowns and a linear one withthe Lagrange multipliers for equalities.
Japanese Zen Buddhism encourages deep meditation in order to achieve a sense of being one with nature. Singing birds, buzzing insects, sounds of leaves gently swaying, and the trickling sound of water in a beautiful f...
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ISBN:
(纸本)9780615406664
Japanese Zen Buddhism encourages deep meditation in order to achieve a sense of being one with nature. Singing birds, buzzing insects, sounds of leaves gently swaying, and the trickling sound of water in a beautiful forest are all integral to helping us feel at one with Nature. By distancing ourselves from the flurries of modern life and holding a reverent attitude toward Nature, we can start searching for a way to sustainability;coping with nature and our modern life. Wearable Forest is a functional dress which interacts bio-acoustically with a remote forest which is located to the uninhabited subtropical forest of the southern Ryukyu Islands, Japan. the clothing contains two paper-thin speakers embroidered on both front shoulders, 256 pieces of white colored LEDs (Light Emitting Diode) sewn withthe conductive thread and sleeve-shaped textile sensors inside the fabric. An embedded CPU system receives the live soundscape data from the remote forest wirelessly;which quantizes the bio-acoustical activity of the wildlife from the data, and visualizes the result as glows through the array of the LEDs. In order to interact withthe wildlife, users touch the textile sensor. this describes a new interactive wearable system that creates a sense of unity between users and a remote soundscape.
Several variance analysis methods that are used in fault localization based on program behaviors were analyzed and compared. None of these methods takes into account the features of object-oriented programs, thus, cou...
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Optical networks, withtheir high bandwidths and low latencies, are excellent to support Grid applications, esp. those arising in so-called eScience applications. In this paper, we consider the resulting so-called opt...
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ISBN:
(纸本)9783901882418
Optical networks, withtheir high bandwidths and low latencies, are excellent to support Grid applications, esp. those arising in so-called eScience applications. In this paper, we consider the resulting so-called optical grids. We address the issue of resiliency against network failures and show how the Grid-specific anycast principle can be exploited in providing shared protection. Since in Grid scenarios users generally allow the Grid system to decide upon the location where jobs are executed, we exploit relocation to alternate backup sites in case of failures. We provide integer linear programming (ILP) solutions to the resulting routing and wavelength assignment problems, as well as a scalable heuristic. A case study on a European network topology shows that this relocation allows savings in the order of 16% of total wavelength capacity compared to traditional shared path protection.
Many search problems contain large amounts of redundancy in the search. In this paper we examine how to automatically exploit remaining subproblem equivalence, which arises when two different search paths lead to iden...
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ISBN:
(纸本)9783642135194
Many search problems contain large amounts of redundancy in the search. In this paper we examine how to automatically exploit remaining subproblem equivalence, which arises when two different search paths lead to identical remaining subproblems, that is the problem left on the remaining unfixed variables. Subproblem equivalence is exploited by caching descriptions, or keys, that define the subproblems visited, and failing the search when the key for the current subproblem already exists in the cache. In this paper we show how to automatically and efficiently define keys for arbitrary constraint problems. We show how a constraint programming solver withthis capability can solve search problems where subproblem equivalence arises orders of magnitude faster. the system is fully automatic, i.e., the subproblem equivalences are detected and exploited without any effort from the problem modeller.
Task Analysis techniques models the human activity for the computer based systems. the role of task analysis is vital in the interface design. In recent years, various task analysis techniques have been explored by th...
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