Academic literature on the topic 'Computational design history'

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Journal articles on the topic "Computational design history"

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Baek, W. K., R. I. Stephens, and B. Dopker. "Integrated Computational Durability Analysis." Journal of Engineering for Industry 115, no. 4 (November 1, 1993): 492–99. http://dx.doi.org/10.1115/1.2901795.

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A computer aided analysis method is described for durability assessment in the early design stages using multibody dynamic analysis, finite element stress analysis, and fatigue life prediction methods. From multibody dynamic analysis of a mechanical system, dynamic loads of a mechanical component were calculated. Finite element stress analysis with substructuring techniques produced accurate stress fields for the component. From the dynamic loads and the stress field of the component, a dynamic stress history at the critical location was produced using the superposition principle. Using Neuber’s rule, a local strain time history was produced from the dynamic stress history. The local strain based fatigue life prediction method was then used to predict “crack initiation” life of the critical component. The predicted fatigue crack initiation life was verified by experimental durability tests. This methodology can be combined with identification of weak links and optimization techniques such that the design optimization for an entire mechanical system based upon durability is possible during the early product development stage.
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Llach, Daniel Cardoso. "Software Comes to Matter: Toward a Material History of Computational Design." Design Issues 31, no. 3 (July 2015): 41–54. http://dx.doi.org/10.1162/desi_a_00337.

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Pessanha, Francisca, and Almila Akdag Salah. "A Computational Look at Oral History Archives." Journal on Computing and Cultural Heritage 15, no. 1 (February 28, 2022): 1–16. http://dx.doi.org/10.1145/3477605.

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Computational technologies have revolutionized the archival sciences field, prompting new approaches to process the extensive data in these collections. Automatic speech recognition and natural language processing create unique possibilities for analysis of oral history (OH) interviews, where otherwise the transcription and analysis of the full recording would be too time consuming. However, many oral historians note the loss of aural information when converting the speech into text, pointing out the relevance of subjective cues for a full understanding of the interviewee narrative. In this article, we explore various computational technologies for social signal processing and their potential application space in OH archives, as well as neighboring domains where qualitative studies is a frequently used method. We also highlight the latest developments in key technologies for multimedia archiving practices such as natural language processing and automatic speech recognition. We discuss the analysis of both visual (body language and facial expressions), and non-visual cues (paralinguistics, breathing, and heart rate), stating the specific challenges introduced by the characteristics of OH collections. We argue that applying social signal processing to OH archives will have a wider influence than solely OH practices, bringing benefits for various fields from humanities to computer sciences, as well as to archival sciences. Looking at human emotions and somatic reactions on extensive interview collections would give scholars from multiple fields the opportunity to focus on feelings, mood, culture, and subjective experiences expressed in these interviews on a larger scale.
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Wang, Xingfeng, Qing Zhang, Xianrong Qin, and Yuantao Sun. "An efficient discrete optimization algorithm for performance-based design optimization of steel frames." Advances in Structural Engineering 23, no. 3 (September 4, 2019): 411–23. http://dx.doi.org/10.1177/1369433219872440.

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Performance-based design optimization of steel frames, with element sections selected from standard sections, is a computationally intensive task. In this article, an efficient discrete optimization algorithm is proposed for performance-based design optimization of steel frames. The computational efficiency is improved by searching in a sensible manner, guided by the deformation information of structural elements. To include all standard sections in the design space, the cross-sectional area ( Area) and moment of inertia ( Ix) are selected as the design variables. Based on different relationships between Area and Ix, a twofold strategy is put forward, which includes a quick exploration and an elaborate exploitation. For comparison, a similar algorithm is also proposed, using Area as the only design variable. A fixed relationship between Area and other sectional properties is used. Two numerical examples are presented to minimize the structural weight while satisfying performance constraints. The results indicate that the proposed discrete algorithm can achieve lighter structural designs than the area-only algorithm. Furthermore, the convergence history proves that a high computational efficiency can be realized by using the proposed algorithm.
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Noguchi, Hiroki, Christine Addy, David Simoncini, Staf Wouters, Bram Mylemans, Luc Van Meervelt, Thomas Schiex, Kam Y. J. Zhang, Jeremy R. H. Tame, and Arnout R. D. Voet. "Computational design of symmetrical eight-bladed β-propeller proteins." IUCrJ 6, no. 1 (January 1, 2019): 46–55. http://dx.doi.org/10.1107/s205225251801480x.

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β-Propeller proteins form one of the largest families of protein structures, with a pseudo-symmetrical fold made up of subdomains called blades. They are not only abundant but are also involved in a wide variety of cellular processes, often by acting as a platform for the assembly of protein complexes. WD40 proteins are a subfamily of propeller proteins with no intrinsic enzymatic activity, but their stable, modular architecture and versatile surface have allowed evolution to adapt them to many vital roles. By computationally reverse-engineering the duplication, fusion and diversification events in the evolutionary history of a WD40 protein, a perfectly symmetrical homologue called Tako8 was made. If two or four blades of Tako8 are expressed as single polypeptides, they do not self-assemble to complete the eight-bladed architecture, which may be owing to the closely spaced negative charges inside the ring. A different computational approach was employed to redesign Tako8 to create Ika8, a fourfold-symmetrical protein in which neighbouring blades carry compensating charges. Ika2 and Ika4, carrying two or four blades per subunit, respectively, were found to assemble spontaneously into a complete eight-bladed ring in solution. These artificial eight-bladed rings may find applications in bionanotechnology and as models to study the folding and evolution of WD40 proteins.
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Adamatzky, Andrew. "A brief history of liquid computers." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1774 (April 22, 2019): 20180372. http://dx.doi.org/10.1098/rstb.2018.0372.

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A substrate does not have to be solid to compute. It is possible to make a computer purely from a liquid. I demonstrate this using a variety of experimental prototypes where a liquid carries signals, actuates mechanical computing devices and hosts chemical reactions. We show hydraulic mathematical machines that compute functions based on mass transfer analogies. I discuss several prototypes of computing devices that employ fluid flows and jets. They are fluid mappers, where the fluid flow explores a geometrically constrained space to find an optimal way around, e.g. the shortest path in a maze, and fluid logic devices where fluid jet streams interact at the junctions of inlets and results of the computation are represented by fluid jets at selected outlets. Fluid mappers and fluidic logic devices compute continuously valued functions albeit discretized. There is also an opportunity to do discrete operation directly by representing information by droplets and liquid marbles (droplets coated by hydrophobic powder). There, computation is implemented at the sites, in time and space, where droplets collide one with another. The liquid computers mentioned above use liquid as signal carrier or actuator: the exact nature of the liquid is not that important. What is inside the liquid becomes crucial when reaction–diffusion liquid-phase computing devices come into play: there, the liquid hosts families of chemical species that interact with each other in a massive-parallel fashion. I shall illustrate a range of computational tasks, including computational geometry, implementable by excitation wave fronts in nonlinear active chemical medium. The overview will enable scientists and engineers to understand how vast is the variety of liquid computers and will inspire them to design their own experimental laboratory prototypes. This article is part of the theme issue ‘Liquid brains, solid brains: How distributed cognitive architectures process information’.
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Sichani, Anna-Maria, and David Hendy. "Connected Histories of the BBC: Opening up the BBC Oral History Archive to the Digital Domain." Journal on Computing and Cultural Heritage 15, no. 1 (February 28, 2022): 1–16. http://dx.doi.org/10.1145/3480954.

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This article describes the computational and data-related challenges of the “Connected Histories of the BBC” project, an interdisciplinary project aiming to bring into the public realm some of the hidden treasures of the BBC's own Oral History Archive through the creation of an openly accessible, fully searchable and interconnected digital catalogue of this archive. This project stands as an interesting case study on the tensions between “computational” and “archival”, by critically designing and employing computational approaches for an historical, complex Oral History collection of scattered analogue records of various forms with an archival pre-history. From data acquisition, modeling, structuring and enhancement, metadata, data analysis procedures, to web design and legal issues, this paper discusses the various computational challenges, processes and decisions made during this project, while showcasing the principles of (re)usability, accessibility, and collaboration throughout its course.
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Samsonova, O. V., K. V. Fetisov, I. V. Karpman, and I. V. Burtseva. "Design of experiments for verification of computational life prediction methods." VESTNIK of Samara University. Aerospace and Mechanical Engineering 18, no. 3 (October 31, 2019): 143–54. http://dx.doi.org/10.18287/2541-7533-2019-18-3-143-154.

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The failure of heavily loaded rotating parts of aviation gas turbine engines may bring about dangerous consequences. The life of such parts is limited with the use of computational and experimental methods. Computational life prediction methods that are used without carrying out life-cycle tests of engine parts or assemblies should be substantiated experimentally. The best option for verifying the computational methods is to use the results of cyclic tests of model disks. These tests make it possible to reproduce loading conditions and surface conditions that correspond to those of real disks, and the data on the load history and material properties make it possible to simulate stress-strain behavior of disks under test conditions by calculation. This paper shows the process of planning such tests. It is assumed that the tests will be carried out in two stages - before and after the initiation of a low-cycle fatigue crack. A number of criteria are formulated that the geometry of model disks and their loading conditions are to satisfy. Based on these criteria, model disks were designed and the conditions for their testing were selected.
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Kumar, Akshat, and Shlomo Zilberstein. "History-Based Controller Design and Optimization for Partially Observable MDPs." Proceedings of the International Conference on Automated Planning and Scheduling 25 (April 8, 2015): 156–64. http://dx.doi.org/10.1609/icaps.v25i1.13730.

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Partially observable MDPs provide an elegant framework forsequential decision making. Finite-state controllers (FSCs) are often used to represent policies for infinite-horizon problems as they offer a compact representation, simple-to-execute plans, and adjustable tradeoff between computational complexityand policy size. We develop novel connections between optimizing FSCs for POMDPs and the dual linear programfor MDPs. Building on that, we present a dual mixed integer linear program (MIP) for optimizing FSCs. To assign well-defined meaning to FSC nodes as well as aid in policy search, we show how to associate history-based features with each FSC node. Using this representation, we address another challenging problem, that of iteratively deciding which nodes to add to FSC to get a better policy. Using an efficient off-the-shelf MIP solver, we show that this new approach can find compact near-optimal FSCs for severallarge benchmark domains, and is competitive with previous best approaches.
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Perelmuter, Anatoly. "STRENGTH ANALYSIS IN DESIGN CODES AND SOFTWARE." International Journal for Computational Civil and Structural Engineering 16, no. 4 (December 28, 2020): 69–79. http://dx.doi.org/10.22337/2587-9618-2020-16-4-69-79.

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Modern building design standards have a long history. During this time, they have undergone a number of changes, but some of their provisions and recommendations, once proclaimed, remain unchanged. And although they do not meet the modern possibilities of computational analysis, but continue to exist due to the established tradition. In this paper, attention is paid to only some of the mentioned conflicts, which are related to the software implementation of regulatory requirements.
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Dissertations / Theses on the topic "Computational design history"

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Maurya, Abhilasha. "Experimental and Computational Investigation of a Self-Centering Beam Moment Frame (SCB-MF)." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/70866.

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In the past two decades, there have been significant advances in the development of self-centering (SC) seismic force resisting systems. However, examples of SC systems used in practice are limited due to unusual field construction practices, high initial cost premiums and deformation incompatibility with the gravity framing. A self-centering beam moment frame (SCB-MF) has been developed that virtually eliminates residual drifts and concentrates the majority of structural damage in replaceable fuse elements. The SCB consists of a I-shaped steel beam augmented with a restoring force mechanism attached to the bottom flange and can be shop fabricated. Additionally, the SCB has been designed to eliminate the deformation incompatibility associated with the self-centering mechanism. The SCB-MF system is investigated and developed through analytical, computational, and experimental means. The first phase of the work involves the development of the SCB concepts and the experimental program on five two-thirds scale SCB specimens. Key parameters were varied to investigate their effect on global system hysteretic response and their effect on system components. These large-scale experiments validated the performance of the system, allowed the investigation of detailing and construction methods, provided information on the behavior of the individual components of the system. The experimental results also provided data to confirm and calibrate computational models that can capable of capturing the salient features of the SCB-MF response on global and component level. As a part of the second phase, a set of archetype buildings was designed using the self-centering beam moment frame (SCB-MF) to conduct a non-linear response history study. The study was conducted on a set of 9 archetype buildings. Four, twelve and twenty story frames, each with three levels of self-centering ratios representing partial and fully self-centering systems, were subjected to 44 ground motions scaled to two hazard levels. This study evaluated the performance of SCB-MFs in multi-story structures and investigated the probabilities of reaching limit states for earthquake events with varying recurrence period. The experimental and computational studies described in this dissertation demonstrate that the SCB-MF for steel-framed buildings can satisfy the performance goals of virtually eliminating residual drift and concentrating structural damage in replaceable fuses even during large earthquakes.
Ph. D.
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Jalia, Aftab. "Innovative masonry shell construction in India's evolving building crafts : a case for tile vaulting." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/271686.

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This thesis uses the lens of building technology to examine cultural exchange and its relationship to the building crafts. By focusing on masonry vaulting in India, my research brings together two worlds – one that shines light on the variety of innovative masonry shell construction techniques that exist in the county and another that seeks to evaluate the scope of tile vaulting, an over 600-year old Mediterranean building technique, within India’s evolving building crafts culture. This thesis is organized in three parts: PART ONE Tile Vaulting and Relevance Today | A Brief History of Masonry Shells in India Part one introduces tile vaulting’s unique principles compared to other vaulting traditions while contextualizing its relevance to present day India. A survey of varied masonry vaulting techniques and modules, endemic and imported, practiced across India is presented against the backdrop of what is a predominantly reinforced concrete-based construction industry. PART TWO Modules, Methods and Motivations The second part of this research comprises case studies that include some of India’s most iconic buildings such as the Villa Sarabhai by Le Corbusier, the National Institute of Design by Gautam Sarabhai and Sangath by B.V. Doshi, each of which employed innovative construction techniques for its vaults. The production and use of the enigmatic ceramic fuses in India is examined for the first time alongside their indigenous cousins: burnt clay tubes. Together with Muzaffarnagar vaulting, the case studies reveal cultural motivations for architectural expression and production in postcolonial India. PART THREE Prototypes | Comparatives | Limitations & Extension of Research Part three presents five tile vaulting prototypes in India constructed with local artisans to gain understanding of its cultural reception, assess effective transfer of skills and potential internalisation. Recommendations for tile vaulting’s potential uptake into mainstream architectural production is evaluated by comparing findings against prevalent building methods and by contextualizing current architectural trends and social policy. Limitations and scope for extension of research are also discussed.
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Bhowmick, Tuhin. "Crystal Structure Of Mycobacterium Tuberculosis Histone Like Protein HU And Structure Based Design Of Molecules To Inhibit MtbHU-DNA Interaction : Leads For A New Target. Structure Aided Computational Analysis Of Metal Coordinated Complexes Containing Amino Acids And Organic Moieties Designed For Photo Induced DNA Cleavage." Thesis, 2012. http://hdl.handle.net/2005/2469.

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In bacteria, nucleoid associated proteins (NAPs) represent a prominent group of global regulators that perform the tasks of genome compaction, establishing chromosomal architecture and regulation of various DNA transactions like replication, transcription, recombination and repair. HU, a basic histone like protein, is one of the most important NAPs in Eubacteria. Mycobacterium tuberculosis produces a homodimeric HU (MtbHU), which interacts with DNA non-specifically through minor groove binding. Exploration for essential genes in Mtb (H37Rv) through transposon insertion has identified HU coding gene [Rv2986c, hupB; Gene Id: 15610123; Swiss-Prot ID: P95109)] to be vital for the survival and growth of this pathogen. MtbHU contains two domains, the N-terminal domain which is considerably conserved among the HU proteins of the prokaryotic world, and a C–terminal domain consisting of Lys-Ala rich multiple repeat degenerate motifs. Sequence analysis carried out by the thesis candidate showed that MtbHU exhibits 86 to 100 percent identity within the N-term region among all the mycobacterium species and some of the members of actinobacteria, including important pathogens like M. tuberculosis, M. leprae, M. ulcerans, M. bovis, Nocardia; while C term repeat region varies relatively more. This strikingly high cross species identity establishes the MtbHU N-terminal domain (MtbHUN) as an important representative structural model for the above mentioned group of pathogens. The thesis candidate has solved the X-ray crystal structure of MtbHUN, crystallized in two different forms, P2 and P21. The crystal structures in combination with computational analyses elucidate the structural details of MtbHU interaction with DNA. Moreover, the similar mode of self assembly of MtbHUN observed in two different crystal forms reveals that the same DNA binding interface of the protein can also be utilized to form higher order oligomers, that HU is known to form at higher concentrations. Though the bifunctional interface involved in both DNA binding and self assembly is not akin to a typical enzyme active site, the structural analysis identified key interacting residues involved in macromolecular interactions, allowing us to develop a rationale for inhibitor design. Further, the candidate has performed virtual screening against a vast library of compounds, and design of small molecules to target MtbHU and disrupt its binding to DNA. Various biochemical, mutational and biological studies were performed in the laboratory of our collaborator Prof. V. Nagaraja, MCBL, IISc., to investigate these aspects. After a series of iterations including design, synthesis and validation, we have identified novel candidate molecules, which bind to MtbHU, disrupt chromosomal architecture and arrest M. tuberculosis growth. Thus, the study suggests that, these molecules can serve as leads for a new class of DNA-interaction inhibitors and HU as a druggable target, more so because HU is essential to Mtb, but absent in human. Our study proposes that, targeting the nucleoid associated protein HU in Mtb can strategize design of new anti-mycobacterial therapeutics. Perturbation of MtbHU-DNA binding through the identified compounds provides the first instance of medium to small molecular inhibitors of NAP, and augurs well for the development of chemical probe(s) to perturb HU functions, and can be used as a fundamental chemical tool for the system level studies of HU-interactome. Section I: “Crystal structure of Mycobacterium tuberculosis histone like protein HU and structure based design of molecules to inhibit MtbHU-DNA interaction: Leads for a new target.” of this thesis presents an elaborate elucidation of the above mentioned work. The candidate has additionally carried out structure based computational and theoretical work to elucidate the interaction of amino acid based metal complexes which efficiently bind to DNA via minor-groove, major-groove or base intercalation interaction and display DNA cleavage activity on photo-irradiation. This understanding is crucial for the design of molecules towards Photodynamic Therapy (PDT). PDT is an emerging method of non-invasive treatment of cancer in which drugs like Photofrin show localized toxicity on photoactivation at the tumor cells leaving the healthy cells unaffected. The work carried out in our group in close collaboration with Prof. A.R. Chakravarty of Inorganic and Physical Chemistry Department elaborates the structure based design of Amino acid complexes containing single Cu (II), such as [Cu(L-trp)(dpq)(H2O)]+ , [Cu (L-arg) 2](NO3)2 , Amino acid complexes containing oxobridged diiron Fe(III), such as [{Fe(L-his)(bpy)}2(μ-O)](ClO4)2 , [{Fe(L-his)(phen)}2(μ-O)](ClO4)2 , and Complexes containing Binuclear Cu(II) coordinated organic moiety, such as [{(dpq) CuII}2(μ-dtdp)2], which bind to DNA through minor groove/major groove/base intercalation interactions. Docking analysis was performed with the X-ray crystallographic structure of DNA as receptor and the metal complexes as ligands, to study the mode of binding to DNA and to understand the possible mode of DNA cleavage (single/double strand) when activated with laser. Section II: “Structure based computational and theoretical analysis of metal coordinated complexes containing amino acids and organic moieties designed for photo induced DNA cleavage” of this thesis presents a detailed presentation of the above mentioned work.
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Books on the topic "Computational design history"

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1961-, Fuss Adam, Linn Judy, and Matthew Marks Gallery, eds. Terry Winters: Computation of chains. New York, N.Y: Matthew Marks Gallery, 1997.

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ZnO bao mo zhi bei ji qi guang, dian xing neng yan jiu. Shanghai Shi: Shanghai da xue chu ban she, 2010.

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Digital Architecture Beyond Computers: Fragments of a Cultural History of Computational Design. Bloomsbury Publishing Plc, 2021.

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Bottazzi, Roberto. Digital Architecture Beyond Computers: Fragments of a Cultural History of Computational Design. Bloomsbury Publishing Plc, 2018.

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O'Regan, Gerard. Guide to Discrete Mathematics: An Accessible Introduction to the History, Theory, Logic and Applications. Springer International Publishing AG, 2022.

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O'Regan, Gerard. Guide to Discrete Mathematics: An Accessible Introduction to the History, Theory, Logic and Applications. Springer International Publishing AG, 2016.

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Guide to Discrete Mathematics: An Accessible Introduction to the History, Theory, Logic and Applications. Springer, 2016.

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O'Regan, Gerard. Guide to Discrete Mathematics: An Accessible Introduction to the History, Theory, Logic and Applications. Springer International Publishing AG, 2021.

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O'Regan, Gerard. Guide to Discrete Mathematics: An Accessible Introduction to the History, Theory, Logic and Applications. Springer, 2018.

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Chen, Shu-Heng, Mak Kaboudan, and Ye-Rong Du, eds. The Oxford Handbook of Computational Economics and Finance. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199844371.001.0001.

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Being published as a celebration of the 60th anniversary of John von Neumann’s “Theory of Self-Reproducing Automata,” this handbook attempts to provide a unique reflection on the nature of computational economics and finance (CEF) in light of natural computationalism. We restructure CEF by including both nature-inspired computing and natural computing. This new framework allows us to have a view of CEF much broader than just the conventional algorithmic consideration. The book begins with a historical review of computational economics (CE), tracing its history far back to the era of analog computing. In these early days, advancements were mainly made using the idea of natural computing, and the subjects pursued by CE were the computing system as a whole, not just numerical computing. The handbook then is organized by distinguishing computing from computing systems. Six chapters (Chapters 2 to 7) are devoted to the former. They together present a review on the recent progresses in CE, as illustrated by the computation of rational expectations, general equilibrium, risk, and volatility. The subsequent 16 chapters are devoted to the computing-systemic view of CE, including natural-inspired computing (Chapters 8 to 12) and network, agent-based computing and neural computing (Chapters 13 to 23). In addition to providing alternative approaches to forecasting, investment strategies and risk management, etc., they enable us to have a 'natural' or more realistic description of the economy, starting from its decision makers; hence, market-design or policy-design issues involving different levels of the economy, be microscopic, mesoscopic and macroscopic, can be simultaneously addressed and coherently integrated. The handbook concludes with a chapter on what we may hope from CE by providing an in-depth review on the epistemological aspects of computation.
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Book chapters on the topic "Computational design history"

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Tsay, J. J., and J. S. Arora. "Variational Methods for Design Sensitivity Analysis of Nonlinear Response with History Dependent Effects." In Computational Mechanics ’88, 1295–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61381-4_344.

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Zhao, Martin Q., Elizabeth Maldonado, Terry B. Kensler, Luci A. P. Kohn, Debbie Guatelli-Steinberg, and Qian Wang. "Conceptual Design and Prototyping for a Primate Health History Knowledge Model." In Advances in Computer Vision and Computational Biology, 509–20. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71051-4_40.

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Feng, Z., P. Gu, M. Zheng, X. Yan, and D. W. Bao. "Environmental Data-Driven Performance-Based Topological Optimisation for Morphology Evolution of Artificial Taihu Stone." In Proceedings of the 2021 DigitalFUTURES, 117–28. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5983-6_11.

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AbstractTaihu stone is the most famous one among the top four stones in China. It is formed by the water's erosion in Taihu Lake for hundreds or even thousands of years. It has become a common ornamental stone in classical Chinese gardens because of its porous and intricate forms. At the same time, it has become a cultural symbol through thousands of years of history in China; later, people researched its spatial aesthetics; there are also some studies on its structural properties. For example, it has been found that the opening of Taihu stone caves has a steady-state effect which people develop its value in the theory of Poros City, Porosity in Architecture and some cultural symbols based on the original ornamental value of Taihu stone. This paper introduces a hybrid generative design method that integrates the Computational Fluid Dynamics (CFD) and Bi-directional Evolutionary Structural Optimization (BESO) techniques. Computational Fluid Dynamics (CFD) simulation enables architects and engineers to predict and optimise the performance of buildings and environment in the early stage of the design and topology optimisation techniques BESO has been widely used in structural design to evolve a structure from the full design domain towards an optimum by gradually removing inefficient material and adding materials simultaneously. This research aims to design the artificial Taihu stone based on the environmental data-driven performance feedback using the topological optimisation method. As traditional and historical ornament craftwork in China, the new artificial Taihu stone stimulates thinking about the new value and unique significance of the cultural symbol of Taihu stone in modern society. It proposes possibilities and reflections on exploring the related fields of Porosity in Architecture and Poros City from the perspective of structure.
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Tangi, Marco. "Dynamic Sediment Connectivity Modelling for Strategic River Basin Planning." In Special Topics in Information Technology, 27–37. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15374-7_3.

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AbstractSediment connectivity is a distributed property of river systems that emerges from the connected transfer of sediment between multiple sources and sinks. Its disruption, brought by anthropic disturbances, can have severe and unforeseen consequences on both fluvial ecosystems and human livelihood. Modeling network-scale sediment connectivity provides a foundational understanding of river processes and their response to new pressures and can be used to forecast future system evolutions. In this chapter, we present the basin-scale, dynamic sediment connectivity model D-CASCADE (Dynamic CAtchment Sediment Connectivity And DElivery), which quantifies spatiotemporal patterns of sediment delivery in river networks. D-CASCADE considers multiple factors affecting transport, including heterogeneities in hydrology and sediment supply, different grain sizes, channel morphological evolution, and reservoir presence and management. The model is designed to be flexible, data parsimonious, and computationally efficient. We also present two applications of D-CASCADE in real-world case studies for historic geomorphic evolution reconstruction and future dam impacts forecasting. D-CASCADE is intended for integrated, basin-scale water management efforts, to perform multiple screening of various decision portfolios for hydromorphological impact assessments.
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Fragiadakis, Michalis, Nikos D. Lagaros, Yiannis Tsompanakis, and Manolis Papadrakakis. "Improved Seismic Design Procedures and Evolutionary Tools." In Intelligent Computational Paradigms in Earthquake Engineering, 1–21. IGI Global, 2007. http://dx.doi.org/10.4018/978-1-59904-099-8.ch001.

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Four alternative analytical procedures are recommended by the design codes for the structural analysis of buildings under earthquake loading. The objective of this chapter is to assess these procedures by integrating them in the framework of structural optimization. The evaluation is based on the European seismic design code, where procedures based on both linear and nonlinear response history analysis are adopted. In order to realistically simulate seismic actions, suites of both natural and artificial ground-motion records are used. For the solution of the optimization problem an evolutionary algorithm is adopted. The results obtained demonstrate the advantages of using more elaborate seismic design procedures, based on a detailed simulation of the structural behaviour and the applied seismic loading, as opposed to the commonly used simplified design methodologies. Designs with less material cost combined with better seismic performance are obtained when nonlinear response history analysis is performed.
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Salajegheh, Eysa, and Ali Heidari. "Optimum Design of Structures for Earthquake Induced Loading by Wavelet Neural Network." In Intelligent Computational Paradigms in Earthquake Engineering, 80–100. IGI Global, 2007. http://dx.doi.org/10.4018/978-1-59904-099-8.ch005.

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Optimum design of structures for earthquake induced loading is achieved by a modified genetic algorithm (MGA). Some features of the simulated annealing (SA) are used to control various parameters of the genetic algorithm (GA). To reduce the computational work, a fast wavelet transform is used. The record is decomposed into two parts. One part contains the low frequency of the record, and the other contains the high frequency of the record. The low-frequency content is used for dynamic analysis. Then using a wavelet neural network, the dynamic responses of the structures are approximated. By such approximation, the dynamic analysis of the structure becomes unnecessary in the process of optimisation. The wavelet neural networks have been employed as a general approximation tool for the time history dynamic analysis. A number of structures are designed for optimal weight and the results are compared to those corresponding to the exact dynamic analysis.
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Xu, Xun. "Geometric Modelling and Computer-Aided Design." In Integrating Advanced Computer-Aided Design, Manufacturing, and Numerical Control, 1–31. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-714-0.ch001.

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One of the key activities in any product design process is to develop a geometric model of the product from the conceptual ideas, which can then be augmented with further engineering information pertaining to the application area. For example, the geometric model of a design may be developed to include material and manufacturing information that can later be used in computer-aided process planning and manufacturing (CAPP/CAM) activities. A geometric model is also a must for any engineering analysis, such as finite elopement analysis (FEA). In mathematic terms, geometric modelling is concerned with defining geometric objects using computational geometry, which is often, represented through computer software or rather a geometric modelling kernel. Geometry may be defined with the help of a wire-frame model, surface model, or solid model. Geometric modelling has now become an integral part of any computer-aided design (CAD) system. In this chapter, various geometric modelling approaches, such as wire-frame, surface, and solid modelling will be discussed. Basic computational geometric methods for defining simple entities such as curves, surfaces, and solids are given. Concepts of parametric, variational, history-based, and history-free CAD systems are explained. These topics are discussed in this opening chapter because (a) CAD was the very first computer-aided technologies developed and (b) its related techniques and methods have been pervasive in the other related subjects like computer-aided manufacturing. This chapter only discusses CAD systems from the application point of view; CAD data formats and data exchange issues are covered in the second chapter.
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Wong, Ka-Chun. "Evolutionary Algorithms." In Advances in Computational Intelligence and Robotics, 190–215. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9474-3.ch007.

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Inspired from nature, evolutionary algorithms have been proven effective and unique in different real world applications. Comparing to traditional algorithms, its parallel search capability and stochastic nature enable it to excel in search performance in a unique way. In this chapter, evolutionary algorithms are reviewed and discussed from concepts and designs to applications in bioinformatics. The history of evolutionary algorithms is first discussed at the beginning. An overview on the state-of-the-art evolutionary algorithm concepts is then provided. Following that, the related design and implementation details are discussed on different aspects: representation, parent selection, reproductive operators, survival selection, and fitness function. At the end of this chapter, real world evolutionary algorithm applications in bioinformatics are reviewed and discussed.
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Heinz, Jeffrey, and Jonathan Rawski. "Learnability in phonology." In The Oxford History of Phonology, 677–93. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780198796800.003.0032.

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This chapter examines the brief but vibrant history of learnability in phonology. We trace the question of learnability back to the foundational crises in mathematics and computer science, through the synthesis of these fields with linguistics, and onwards to the foundational problems of language, and phonological, learning. We observe this history is mostly one-sided, with many ideas from learning imported to phonology, but rarely the converse. We review some of the most significant interactions between formal learnability and phonology, topics such as the necessity of structured hypothesis spaces, the credit/blame/hidden structure problem, and the subset principle. We finish by discussing several overarching tensions pervading this field: the role of mathematical descriptions versus computational simulations of learning, typological versus learnability concerns in grammar design, and debates on the psychological reality of phonological grammars. As a field, we should not fear rapid change or the many flowering prospects.
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Fislake, Martin. "Educational Robotics Between Coding and Engineering Education." In Research Anthology on Computational Thinking, Programming, and Robotics in the Classroom, 824–57. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-2411-7.ch036.

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The development and use of educational robotics offer almost unlimited chances for teaching design. In classrooms it results in numerous and continuously increasing possibilities for the promotion of competences and the differentiated and differentiating use of educational robots. Therefore, this paper reports long time experiences of the author and is intended to introduce into the history and the relevant literature of educational robotics in teaching settings, before it discusses the role of educational robots as technology artefacts, as educational technology and for technology education interconnected to coding and the engineering design process (edp). In addition, a structured overview is developed to provide orientation, discuss possible applications and offer basic assistance for teaching between coding and engineering.
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Conference papers on the topic "Computational design history"

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Qu, Min, Ran Li, and Feng Zhang. "On the Bilingual Teaching Practice of "Industrial Design History"." In 2009 Second International Symposium on Computational Intelligence and Design. IEEE, 2009. http://dx.doi.org/10.1109/iscid.2009.80.

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Li, Chuanzhen, Yin Liu, Jingling Wang, and Hui Wang. "Combining Localized Oriented Rectangles and Motion History Image for Human Action Recognition." In 2014 7th International Symposium on Computational Intelligence and Design (ISCID). IEEE, 2014. http://dx.doi.org/10.1109/iscid.2014.199.

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Xiao, Ping-Ping, and Xiaoguang Li. "An Algorithm to Identify High-Bandwidth Flows Based on Packet Drop History." In 2016 9th International Symposium on Computational Intelligence and Design (ISCID). IEEE, 2016. http://dx.doi.org/10.1109/iscid.2016.1059.

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Bidarra, Rafael, and Willem F. Bronsvoort. "History-Independent Boundary Evaluation for Feature Modeling." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/cie-9122.

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Abstract Most current feature modeling systems strongly rely on a history-based interpretation of the feature model, in order to maintain its evaluated boundary representation. This dependency on the model history is undesirable, as it forces the user of the modeling system to reason in terms of a strict chronological feature creation order. Moreover, re-evaluation of the boundary representation, as performed in such systems, has a computational cost proportional to the size of the model history. Such drawbacks suggest that current feature modeling systems are still too tied to conventional geometric modeling techniques. In this paper, it is argued that to overcome the drawbacks mentioned above, a declarative feature model is required, whose structure is dynamically adapted as modeling operations create or modify relations among its features. Operations performed on this feature model can then be efficiently propagated to an evaluated non-manifold geometric representation, without invoking model history considerations. The paper describes how such a geometric model — the so-called Cellular Model — can be maintained throughout model evolution. For each modeling operation, this is achieved in two phases. First, the Cellular Model is incrementally re-evaluated. Second, the Cellular Model is interpreted, according to the feature information stored in its cellular entities and the current dependencies among the features. The advantages of the use of this history-independent boundary evaluation, implemented within the semantic feature modeling approach, are illustrated with some modeling examples.
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Oman, Sarah, Michael Koch, Irem Y. Tumer, and Matt Bohm. "Verifying the Usability of Failure-Based Computational Design Methods." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39259.

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In the early stages of the design process, there is a need to provide designers with tools to assess risks and possible failures so as to avoid costly redesigns, comply with established safety measures and to promote innovation throughout the design process. Recently, various methods have been proposed in research to accomplish such tasks, including the Risk in Early Design (RED) and the Function Failure Design Method (FFDM). This paper proposes a method for examining the utility of such failure-based computational design methods. Validation is accomplished by analyzing products with a known history of failure, decomposing these products into functional representations and performing both RED and FFDM analyses on these models to see how closely such methods are able to correctly identify the real-world failures. The goal of this work is to determine the effectiveness of both the RED and FFDM methods in order to suggest improvements for both methods. The results provide insight on the verification methodology in addition providing to prescriptive methods to increase the usefulness of early stage failure and risk assessment techniques.
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Hamrick, Joseph T. "A Review of the History of the NACA Centrifugal Compressor Program and Arrival at Current Computational Design Procedures." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56034.

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Before and during World War Il the design and development of single stage, high pressure ratio centrifugal compressors was essentially a cut and try exercise. To reach a high pressure without substantial experimentation required multiple stages of impellers and diffusers with pressure ratios in the two to one range. While such arrangements were satisfactory for commercial use where weight was not a major consideration, they were not suitable for jet engines. The centrifugal compressor for the Whittle engine, the first British jet engine, was developed by trial and error with numerous modifications of the hub-shroud profile. The centrifugal compressor section of the National Advisory Committee for Aeronautics (NACA) designed, built and tested three compressor impellers during and after World War Il. They were part of a program designed to evaluate various blade shapes, but encountered such instabilities at the design pressure ratios that the experimental results led to no definitive conclusions. In 1948 the Centrifugal Compressor Section was given the assignment to further investigate the three impellers. The investigation led to the development of a quasi three dimensional design procedure that eliminated the guesswork from the basic design of a centrifugal impeller. Since the 1948 to 1955 time period over which the procedure was developed, the advances in computers have allowed refinements in the original computational methods. It is the objective of this presentation to review the history of the NACA centrifugal compressor program and efforts that have led to the latest developments in computational design procedures.
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Howard, John A., Ruggero Trevisan, Albert McSpadden, and Simon Glover. "History, Evolution, and Future of Casing Design Theory and Practice." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206183-ms.

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Abstract Casing design and the associated load assumptions have evolved considerably over the last 30 years. The objective of this paper is to trace the history, evolution and future of casing design by means of the type of load cases and the assumptions made for them as it evolved from the early 1960's to the modern load case requirements for wells drilled in the 2020's. The vast majority of tubular failures in oil & gas wells are not attributable to computational errors in calculating design loads, but rather are due to a shortfall in considering the appropriate load scenarios. One common shortfall includes making incorrect or oversimplified assumptions for the initial and final temperature and pressure conditions. There is no industry standard for casing or tubing design loads, but there is an industry accepted standard process for the calculation of the stress on tubulars once the load cases are determined. Each operating company may use a different set of load assumptions depending on the well type and risk assessment. This work also keeps in view the major computational tools used during each step change of the casing design evolution: slide rule/nomographs, HP 41C calculators, PC DOS and Windows programs, and the latest Cloud-Native paradigm with REST API's within a microservices architecture. A REST API (also known as RESTful API) is an Application Programming Interface (API) that conforms to the constraints of Representational State Transfer (REST) architectural style commonly used in current Cloud computing technology. The scope will also include ongoing research and development to address shortcomings of previous load case assumptions and calculations for extended reach and HPHT wells, closely spaced wells, and geothermal wells. Modern wells and modern casing design load cases are in a constant state of evolution and casing failures will occur unless engineers and their tools also evolve.
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Ullah, Md Rifat, Md Ataur Rahman Bhuiyan, and Amit Kumar Das. "IHEMHA: Interactive healthcare system design with emotion computing and medical history analysis." In 2017 6th International Conference on Informatics, Electronics and Vision & 2017 7th International Symposium in Computational Medical and Health Technology (ICIEV-ISCMHT). IEEE, 2017. http://dx.doi.org/10.1109/iciev.2017.8338606.

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Penna, A., M. Rota, A. Mouyiannou, and G. Magenes. "ISSUES ON THE USE OF TIME-HISTORY ANALYSIS FOR THE DESIGN AND ASSESSMENT OF MASONRY STRUCTURES." In 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2014. http://dx.doi.org/10.7712/120113.4549.c1327.

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Fukunaga, Masataka, and Nobuyuki Shimizu. "High Speed Algorithm for Computation of Fractional Differentiation and Integration." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47408.

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A high speed algorithm for computing fractional differentiations and fractional integrations in fractional differential equations is proposed. In this algorithm the stored data is not the history of the function to be differentiated or integrated but the history of the weighted integrals of the function. It is shown that, by the computational method based on the new algorithm, the integration time only increases in proportion to n log n, different from n2 by a standard method, for n steps of integrations of a differential integration.
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