• 제목/요약/키워드: multi-disciplinary

검색결과 237건 처리시간 0.032초

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

  • 김기영
    • 한국조리학회지
    • /
    • 제13권1호
    • /
    • pp.212-223
    • /
    • 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.

  • PDF

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

  • 이세정
    • 한국CDE학회논문집
    • /
    • 제16권3호
    • /
    • pp.236-245
    • /
    • 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.

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

  • 이상욱
    • 과학기술학연구
    • /
    • 제5권2호
    • /
    • pp.1-21
    • /
    • 2005
  • '과학기술학'과 '과학, 기술, 사회'의 두 가지로 번역되는 STS는 최근 국내외에서 과학 기술철학, 과학기술역사학, 과학기술사회학, 과학기술정책학 등의 여러 분과 학문의 연합체로서가 아니라 나름대로의 학문적 정체성을 가진 독자적인 연구분야로 자리잡아 가고 있다. 본 논문은 이런 상황에서 과학철학이 과학기술학으로 이해된 STS에서 이루어지는 다양한 형태의 학제간 연구에 기여할 수 있는 방식을 모색한다. 이를 위해 우선 과학기술학 연구는 학제간 연구가 이루어지는 구체적인 양식에 따라 분과 통합적 지적 협력인 간학문적 연구와 주제중심적 지적 협력인 다학문적 연구로 나뉘어 질 수 있음을 지적한다. 그 후 구체적인 예를 통해 과학철학이 이 두 분야 모두에 생산적으로 참여할 수 있음을 보인다.

  • PDF

Tunable Metal-Insulator Phase Transition in $VO_2$ Nanowires

  • Seong, Won-Kyung;Lee, Ji-Yeong;Moon, Myoung-Woon;Lee, Kwang-Ryeol
    • 한국진공학회:학술대회논문집
    • /
    • 한국진공학회 2012년도 제43회 하계 정기 학술대회 초록집
    • /
    • pp.385-385
    • /
    • 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.

  • PDF

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

  • 조재석;주민식;송용호;최동훈
    • 한국전산구조공학회:학술대회논문집
    • /
    • 한국전산구조공학회 2007년도 정기 학술대회 논문집
    • /
    • pp.327-332
    • /
    • 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.

  • PDF

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

  • 박만구;장혜원;김은혜;조두경;김윤선;유대현;남미선;김주숙;박원규;탁병주
    • 대한수학교육학회지:학교수학
    • /
    • 제17권1호
    • /
    • pp.79-98
    • /
    • 2015
  • 본 연구의 목적은 초등학교 주제 중심의 수학교과서를 개발하고 효과성을 검증하여 차후 수학교과서 개발에 유의미한 대안을 제시하는데 있다. 이를 위해 다학문적(multi-disciplinary), 간학문적(inter-disciplinary), 탈학문적(extra-disciplinary) 융합의 형태로, '건강한 삶', '지속가능한 삶', '더불어 사는 삶'이라는 주제 중심의 수학교과서를 개발하였고, 그 효과성을 검증하기 위해 각 주제별 2개 반, 총 6반을 대상으로 수업을 실시하였다. 연구 결과, '건강한 삶', '지속가능한 삶' 주제는 사전검사에 비해 사후검사의 성취도 평균이 높았으나 '더불어 사는 삶' 주제는 사전검사에 비해 사후검사의 성취도 평균이 낮았다. 반면 주제 중심 문항 점수의 경우, '건강한 삶', '지속가능한 삶'에서는 실험반의 점수가 비교반의 점수보다 통계적으로 유의미하게 높았으나 '더불어 사는 삶'에서는 통계적으로 유의미하지 않았다. 수학 태도 검사 결과는 세 주제에서 사전, 사후 모두 실험반의 평균이 비교반보다 높았다. 그리고 주제 중심의 초등학교 수학교과서를 정규교육과정에 포함시키려는 노력, 교사를 위한 자료의 제공, 융통성 있는 사용 등을 위한 연구가 지속해야 함을 제안하였다.

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
    • 한국진공학회:학술대회논문집
    • /
    • 한국진공학회 2012년도 제43회 하계 정기 학술대회 초록집
    • /
    • pp.440-440
    • /
    • 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.

  • PDF

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

  • 최상호;최흥규;이민수;최영찬
    • 농촌계획
    • /
    • 제11권4호
    • /
    • pp.33-45
    • /
    • 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
    • /
    • 제17권1호
    • /
    • pp.1-19
    • /
    • 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.