• Title/Summary/Keyword: multi-disciplinary

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Study on the Interdisciplinary Approach of Food Merchandise (외식상품학의 학제적 접근방법 연구)

  • Kim, Ki-Young
    • Culinary science and hospitality research
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    • v.13 no.1 s.32
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    • pp.212-223
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    • 2007
  • The method of study generally includes multi-disciplinary studies, inter-disciplinary studies, cross-disciplinary studies and trans-disciplinary studies by Meeth. In the study of food, however, it can be used intersectionally or step by step. The purpose of this study was to research the types of related studies and define the food merchandise using the multi-disciplinary and inter-disciplinary studies. The food merchandise was defined all things considered menu; it was the academic system about menu design, reengineering and analysis. It constructed social science system and independent research system in holding peculiarity and speciality of it. Then, its own research field was gradually created as the practical and scientific method. Finally, further study about it will be progressed not in the merchandise but in the social science from now on.

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An Efficient Solution Method to MDO Problems in Sequential and Parallel Computing Environments (순차 및 병렬처리 환경에서 효율적인 다분야통합최적설계 문제해결 방법)

  • Lee, Se-Jung
    • Korean Journal of Computational Design and Engineering
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    • v.16 no.3
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    • pp.236-245
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    • 2011
  • Many researchers have recently studied multi-level formulation strategies to solve the MDO problems and they basically distributed the coupling compatibilities across all disciplines, while single-level formulations concentrate all the controls at the system-level. In addition, approximation techniques became remedies for computationally expensive analyses and simulations. This paper studies comparisons of the MDO methods with respect to computing performance considering both conventional sequential and modem distributed/parallel processing environments. The comparisons show Individual Disciplinary Feasible (IDF) formulation is the most efficient for sequential processing and IDF with approximation (IDFa) is the most efficient for parallel processing. Results incorporating to popular design examples show this finding. The author suggests design engineers should firstly choose IDF formulation to solve MDO problems because of its simplicity of implementation and not-bad performance. A single drawback of IDF is requiring more memory for local design variables and coupling variables. Adding cheap memories can save engineers valuable time and effort for complicated multi-level formulations and let them free out of no solution headache of Multi-Disciplinary Analysis (MDA) of the Multi-Disciplinary Feasible (MDF) formulation.

Two Ways of Doing Cross-disciplinary Philosophy of Science Research: Inter-disciplinary STS and Multi-disciplineary STS (학제간 과학철학 연구의 두 방향: 간학문 STS와 다학문 STS)

  • Yi Sang-Wook
    • Journal of Science and Technology Studies
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    • v.5 no.2 s.10
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    • pp.1-21
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    • 2005
  • It has been a point of dispute how to define the disciplinary identity of STS; science and technology studies or science, technology and society? Still, STS is now emerging as an autonomous research discipline with its own agendas and styles of reasoning from a mere collections of various meta disciplines such as philosophy of science, history of science and sociology of science. The paper discusses how philosophy of science in its cross-disciplineary mode can contribute to STS (understood as science and technology studies) research given these recent academic trends. We can start from the observation that there are two distinctive ways of doing cross-disciplinary research: inter-disciplinary and multi-disciplinary. Then it is shown with concrete examples how philosophy of science can productively participate in both ways of cross-disciplinary researches in STS.

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Tunable Metal-Insulator Phase Transition in $VO_2$ Nanowires

  • Seong, Won-Kyung;Lee, Ji-Yeong;Moon, Myoung-Woon;Lee, Kwang-Ryeol
    • Proceedings of the Korean Vacuum Society Conference
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    • 2012.08a
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    • pp.385-385
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    • 2012
  • Understanding the thermodynamics and structural transformation during the Metal-Insulator Transition (MIT) is critical to better understand the underlying physical origin of phase transition in the vanadiumdioxide ($VO_2$). Here, through the temperature-dependent in-situ high resolutiontransmission electron microscopy (HR-TEM), and systematic electrical transport study, we have shown that the tunable MIT transition of $VO_2$ nanowires is strongly affected by interplay between strain and domain nucleation by ion beam irradiation. Surprsingly, we have also observed that the $VO_2$ rutile (R) metallic phase could form directly in a strain-induced metastable monoclinic (M2) phase. These insights open the door toward more systematic approaches to synthesis for $VO_2$ nanostructures in desired phase and to use for applications including ultrafast optical switching, smart window, metamaterial, resistance RAM and synapse devices.

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Load Balancing Algorithm for Parallel Computing of Design Problem involving Multi-Disciplinary Analysis (다분야통합해석에 기반한 설계문제의 병렬처리를 위한 부하분산알고리즘)

  • Cho, Jae-Suk;Chu, Min-Sik;Song, Yong-Ho;Choi, Dong-Hoon
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2007.04a
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    • pp.327-332
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    • 2007
  • An engineering design problem involving Multi-Disciplinary Analysis(MDA) generally requires a large amounts of CPU time for the entire design process, and therefore Multiple Processing System (MPS) are essential to reduce the completion time. However, when applying conventional parallel processing techniques, all of the CAE S/W required for the MDA should be installed on all the servers making up NIPS because of characteristic of MDA and it would be a great expense in CAE S/W licenses. To solve this problem, we propose a Weight-based Multiqueue Load Balancing algorithm for a heterogeneous MPS where performance of servers and CAE S/W installed on each server are different of each other. To validate the performance, a computational experiments comparing the First Come First Serve algorithm and our proposed algorithm was accomplished.

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A Study on the Development of Elementary Mathematics Textbooks as a Thematic Approach (주제 중심의 초등학교 수학교과서 모형 연구)

  • Park, Mangoo;Chang, Hyewon;Kim, Eun-Hye;Cho, Dookyoung;Kim, Yoonsun;You, DaeHyun;Nam, Misun;Kim, Joo-Sook;Park, Wonkyu;Tak, Byungjoo
    • School Mathematics
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    • v.17 no.1
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    • pp.79-98
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    • 2015
  • The purpose of this study was to develop the elementary mathematics textbooks as a thematic approach, to suggest meaningful directions to future textbook development and curriculum development. For this study, we suggested mathematics textbooks of the three-themes, 'Healthy Life', 'Sustainable Life', 'Living-together Life', as multi-disciplinary, inter-disciplinary, and extra-disciplinary types. With the problems that employed thematic approaches, the post-achievement scores of experimental groups who used 'Healthy Life' and 'Sustainable Life' textbooks were meaningfully higher than those of control groups. However, the post-achievement scores of experimental groups who used 'Living-together Life' textbook were not meaningfully higher than those of control groups. The attitudes towards mathematics of all three experimental groups were meaningfully higher than those of control groups. After applications of elementary mathematics textbooks as a thematic approach, we need to develop related materials, to consider various grades, levels, regions for developing better mathematics textbooks.

Synthesis and Characterization of Cu(In,Ga)Se2 Nanostructures by Top-down and Bottom-up Approach

  • Lee, Ji-Yeong;Seong, Won-Kyung;Moon, Myoung-Woon;Lee, Kwang-Ryeol;Yang, Cheol-Woong
    • Proceedings of the Korean Vacuum Society Conference
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    • 2012.08a
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    • pp.440-440
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    • 2012
  • Nanomaterials have emerged as new building blocks to construct light energy harvesting assemblies. Size dependent properties provide the basis for developing new and effective systems with semiconductor nanoparticles, quantized charging effects in metal nanoparticle or their combinations in 2 and 3 dimensions for expanding the possibility of developing new strategies for photovoltaic system. As top-down approach, we developed a simple and effective method for the large scale formation of self-assembled Cu(In,Ga)$Se_2$ (CIGS) nanostructures by ion beam irradiation. The compositional changes and morphological evolution were observed as a function of the irradiation time. As the ion irradiation time increased, the nano-dots were transformed into a nano-ridge structure due to the difference in the sputtering yields and diffusion rates of each element and the competition between sputtering and diffusion processes during irradiation. As bottom-up approach, we developed the growth of CIGS nanowires using thermal-chemical vapor deposition (CVD) method. Vapor-phase synthesis is probably the most extensively explored approach to the formation of 1D nanostructures such as whiskers, nanorods, and nanowires. However, unlike binary or ternary chalcogenides, the synthesis of quaternary CIGS nanostructures is challenging because of the difficulty in controlling the stoichiometry and phase structure. We introduced a method for synthesis of the single crystalline CIGS nanowires in the form of chalcopyrite using thermal-CVD without catalyst. It was confirmed that the CIGS nanowires are epitaxially grown on a sapphire substrate, having a length ranged from 3 to 100 micrometers and a diameter from 30 to 500 nm.

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Promoting Strategies by Development Stage of Region Based Agricultural Cluster Using a Multi-disciplinary Approach (다학문적 접근을 통한 지역농업 클러스터의 단계별 추진전략)

  • Choi, Sang-Ho;Choi, Hung-Kyu;Lee, Min-Soo;Choe, Young-Chan
    • Journal of Korean Society of Rural Planning
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    • v.11 no.4 s.29
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    • pp.33-45
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    • 2005
  • This study investigates the core elements of the formation and development of cluster using a multi-disciplinary approach and suggests a promoting strategy by development stage of cluster. As a sub-category of regional innovation system, the cluster has been considered as one of the most noticeable methodological argument to make the regional innovation system come true. In the meantime, this study examines the core elements of cluster shown in the theories and examples through six academic fields such as economics, geography, regional development, business administration, sociology and pedagogy and their educational back-ground. By means of establishing the incubation stage in the development of cluster, core elements are composed in the stages of birth, incubation and evolution in subsequent manner. A promoting strategy will be suggested through the implication of core elements in the reestablished stages.

Multiscale finite element method applied to detached-eddy simulation for computational wind engineering

  • Zhang, Yue;Khurram, Rooh A.;Habashi, Wagdi G.
    • Wind and Structures
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    • v.17 no.1
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    • pp.1-19
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    • 2013
  • A multiscale finite element method is applied to the Spalart-Allmaras turbulence model based detached-eddy simulation (DES). The multiscale arises from a decomposition of the scalar field into coarse (resolved) and fine (unresolved) scales. It corrects the lack of stability of the standard Galerkin formulation by modeling the scales that cannot be resolved by a given spatial discretization. The stabilization terms appear naturally and the resulting formulation provides effective stabilization in turbulent computations, where reaction-dominated effects strongly influence near-wall predictions. The multiscale DES is applied in the context of high-Reynolds flow over the Commonwealth Advisory Aeronautical Council (CAARC) standard tall building model, for both uniform and turbulent inflows. Time-averaged pressure coefficients on the exterior walls are compared with experiments and it is demonstrated that DES is able to resolve the turbulent features of the flow and accurately predict the surface pressure distributions under atmospheric boundary layer flows.