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A review of computerized hospital layout modelling techniques and their ethical implications

Frontiers of Architectural Research 2020年第3期9卷 498-513页

作者： navid jamali Ramsey K.Leung Stephen Verderber John H.Daniels Faculty of Architecture Landscapeand DesignUniversity of TorontoTorontoCanada

Purpose:This paper reviews an area of interdisciplinary collaboration in the design of healthcare facilities that attempts to optimize hospital space-planning using automated statistical techniques from the discipline of Operations Research(OR).This review articulates Facility Layout Problems(FLPs)as a general class of OR ***,the review highlights limitations of these techniques,which necessitate an ethical and participatory engagement with computerized processes of healthcare ***/methodology/approach:An in-depth critical review was carried out,which revealed a number of common themes,collectively theorized as metamodeling processes,or models of models,through which various FLP modelling techniques can be challenged and debated in terms of their architectural viability,and ethical ***:This review provides a methodological basis for the further evaluation of computational *** was found that most of the reviewed studies are functionally focused on flow efficiency and,in general,do not consider broader contextual,relational,social,or salutogenic design ***/value:This review is the first on the subject written from an architectural *** can be used by a broad range of readers as its critical review of past and present hospital layout modelling techniques discusses their capabilities and *** such,it also enables them to consider ethical values while critiquing the epistemology of computational processes hidden beneath algorithmic outputs.

关键词： Hospital planning Floor layout problem Artificial intelligence Operations research Computational design Participatory design

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A wavelet packet based method for adaptive single-pole auto-reclosing

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第12期11卷 1016-1024页

作者： Sadegh jamali navid GHAFFARZADEH Centre of Excellence in Power Systems Automation and Operation Iran University of Science and Technology Tehran Iran

We present a new algorithm for adaptive single-pole auto-reclosing of power transmission lines using wavelet packet transform. The db8 wavelet packet decomposes the faulted phase voltage waveform to obtain the coefficients of the nodes 257, 259 to 262. An index is then defined from the sum of the energy coefficients of these nodes. By evaluating the index, transient and permanent faults, as well as the secondary arc extinction instant, can be identified. The significant advantage of the proposed algorithm is that it does not need a threshold level and therefore its performance is independent of fault location, line parameters, and operating conditions. Moreover, it can be used in transmission lines with reactor compensation. The proposed method has been successfully tested under a variety of fault conditions on a 400 kV overhead line of the Iranian National Grid using the Electro-Magnetic Transient Program (EMTP). The test results validated the algorithm’s ability in distinguishing between transient arcing and permanent faults and determining the instant of secondary arc extinction.

关键词： Adaptive auto-reclosing Arcing faults Permanent faults Transmission lines Wavelet packet transform

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