• 제목/요약/키워드: structure-function relationship

검색결과 360건 처리시간 0.032초

Protein Backbone Torsion Angle-Based Structure Comparison and Secondary Structure Database Web Server

  • Jung, Sunghoon;Bae, Se-Eun;Ahn, Insung;Son, Hyeon S.
    • Genomics & Informatics
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    • 제11권3호
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    • pp.155-160
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    • 2013
  • Structural information has been a major concern for biological and pharmaceutical studies for its intimate relationship to the function of a protein. Three-dimensional representation of the positions of protein atoms is utilized among many structural information repositories that have been published. The reliability of the torsional system, which represents the native processes of structural change in the structural analysis, was partially proven with previous structural alignment studies. Here, a web server providing structural information and analysis based on the backbone torsional representation of a protein structure is newly introduced. The web server offers functions of secondary structure database search, secondary structure calculation, and pair-wise protein structure comparison, based on a backbone torsion angle representation system. Application of the implementation in pair-wise structural alignment showed highly accurate results. The information derived from this web server might be further utilized in the field of ab initio protein structure modeling or protein homology-related analyses.

프로젝트 관리(PM)와 시스템엔지니어링 관리(SEM)의 범위 및 관계 (The Scope and Relationship of Project Management and Systems Engineering Management)

  • 이중윤
    • 시스템엔지니어링학술지
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    • 제10권2호
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    • pp.1-13
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    • 2014
  • Put Abstract text here. Recently, the Korea industry need systems engineering technology more than yesterday. The systems engineering management function is needed to use the systems engineering engine process effectively. The systems engineering management function is overlapped a lot with project management function and has vague interface. The project management and systems engineering are two independent disciplines. So there are few references which address the scope and relationships clearly between systems engineering management and project management. This paper suggest the scope and relationships between systems engineering management and project management and revise the PMP and SEMP structure of Blanchard and Fabrycky. Followings are the key concept of this paper presenting. The project management(PM) composed of technical management and non-technical management. The technical management scope is same with systems engineering management. The non-technical management scope is composed of parts of enterprise support processes.

실내 공간과 가구의 상호관계성 연구 - 퍼스의 기호학을 중심으로 - (A Study on the Interrelationship with Interior space and Furniture - Focused on Peirce's Theory -)

  • 백정민;허범팔
    • 한국실내디자인학회논문집
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    • 제20권3호
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    • pp.127-134
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    • 2011
  • Interior design has diverse functions and roles according to recent changes in life and cultural style. As the meaning of space varies, the furniture as another element of the space should also be planned and included in the beginning of the project to accomplish its functional role on the finished space and not only be placed. The relationship between Interior space and furniture should be studied and understood at the same realm because they have a complementary relationship. The final destination of design, which is very challenging to accommodate people, the designer needs to approach to the interior space and furniture in a cognitive view. The study of Semiotics views in a knowledgeable and epistemological way every element as a sign and by the relationship of their characters it makes to understand the structure of the signs. Charles Sanders Peirce, a leader of Semiotics in USA, classified the structure of Sign into Representamen, Object and Interpretant to complete the theory which could systematically describe physical characteristic and function of the Sign and its significance in practical use. Peirce stated that all nine types of Sign would be generated if each structure of Sign in combined with three categories of Sign such as Firstness, Secondness, and Thirdness. In this study, based on Peirce's nine types of Sign, the interrelationship between space and furniture in interior design was investigated with examples in Living Space, Office Space, and Commercial Space, respectively. In the category of Representamen, which can be classified into Qualisign, Sinsign, and Legisign, it is a feature of Living Space to be expressed in harmonized and stabilized ways. In Office Space vertical/horizontal elements and open expression are differently showed depending on fields. And splendid and interesting expressions are showed in Commercial Space. In the category of Object, which can be classified into Icon, Index, and Symbol, each function of Sign has distinctly been showed as Symbol in Living Space, Index in Office Space, and Icon in Commercial Space, respectively. In the category of Interpretant, which can be classified into Rheme, Dicisign, and Argument, it was found that space image of Living Space is transferred to human being, Office Space regulates human bing, and Commercial Space binds human being with the space. In conclusion the function of the interior space and the furniture could be explained in another way with re-interpretation of interrelationship among interior space elements in the concept of Semiotics. It is expected that interpretation with Semiotics in interior design will grow to new theory of design.

Bacterial Community Structure and Function Shift in Rhizosphere Soil of Tobacco Plants Infected by Meloidogyne incognita

  • Wenjie, Tong;Junying, Li;Wenfeng, Cong;Cuiping, Zhang;Zhaoli, Xu;Xiaolong, Chen;Min, Yang;Jiani, Liu;Lei, Yu;Xiaopeng, Deng
    • The Plant Pathology Journal
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    • 제38권6호
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    • pp.583-592
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    • 2022
  • Root-knot nematode disease is a widespread and catastrophic disease of tobacco. However, little is known about the relationship between rhizosphere bacterial community and root-knot nematode disease. This study used 16S rRNA gene sequencing and PICRUSt to assess bacterial community structure and function changes in rhizosphere soil from Meloidogyne incognita-infected tobacco plants. We studied the rhizosphere bacterial community structure of M. incognita-infected and uninfected tobacco plants through a paired comparison design in two regions of tobacco planting area, Yuxi and Jiuxiang of Yunnan Province, southwest China. According to the findings, M. incognita infection can alter the bacterial population in the soil. Uninfested soil has more operational taxonomic unit numbers and richness than infested soil. Principal Coordinate Analysis revealed clear separations between bacterial communities from infested and uninfested soil, indicating that different infection conditions resulted in significantly different bacterial community structures in soils. Firmicutes was prevalent in infested soil, but Chloroflexi and Acidobacteria were prevalent in uninfested soil. Sphingomonas, Streptomyces, and Bradyrhizobium were the dominant bacteria genera, and their abundance were higher in infested soil. By PICRUSt analysis, some metabolism-related functions and signal transduction functions of the rhizosphere bacterial community in the M. incognita infection-tobacco plants had a higher relative abundance than those uninfected. As a result, rhizosphere soils from tobacco plants infected with M. incognita showed considerable bacterial community structure and function alterations.

원시기하도형을 이용한 3차원구조 복원시스템의 구현 (Implementation of 3D Structure Reconstruction System Using Geometric Primitives)

  • 남현석;구본기;진성일
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
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    • pp.237-240
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    • 2003
  • We implement a system for 3D structure reconstruction from multiple 2D images. It uses geometric primitives such as box, wedge, pyramid, etc, each having translation, rotation, and scale parameters. Primitives are marked on input images with GUI (Graphic User Interface). Lines made by projection of primitives onto an image correspond to marked line segments of the image. Error function is defined by disparity between them and is minimized by downhill simplex method. By assigning relationship between models, the number of parameters to solve can be decreased and the resultant models become more accurate To share variables among other models also reduces computational complexity. Experiments using real images have shown that the proposed method successfully reconstructs 3D structure.

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애니메이션의 샷밀도 몽타주 패턴 (The Shot Density Montage Pattern for Annimation)

  • 신연우
    • 한국멀티미디어학회논문지
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    • 제25권4호
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    • pp.620-627
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    • 2022
  • This study analyzed the shot pattern through the tempo of segmented shot duration and studied the relationship with the unique emotion of the story. The structure of the story was classified into 3 chapters, 17 sequences, 83 scenes, 287 beats, and 1636 shots. Shot density is a method of visualizing tension in visual storytelling, and since it is a result obtained by mathematically calculating the density of divided shots, it can be helpful in designing tension delivered to the audience. Nine shot density patterns were extracted. The ascending(+) type was classified as A, B, C, D, 4, the descending(-) type, E, F, G, H, 4, and the maintenance(/) type, I, 1 type. Based on the spatiality of the 17 stages of Campbell's heroic narrative and McGee's story structure, the narrative level of the tree structure was proposed, and the symbolic meaning of the shot rhythm in the practical aspect of the story function was proposed to present a systematic methodology in the direction of production.

자치단체장의 선거공약이 도시공간구조 변화에 미치는 영향에 관한 연구 (Impacts of An Election Pledge of Chief 3of Regional Government on the Change of Urban Spatial Structure)

  • 신천식;이주형
    • 한국콘텐츠학회논문지
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    • 제11권7호
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    • pp.387-405
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    • 2011
  • 지방자치단체는 중앙정부의 하위 조직이 아니라 독립된 하나의 경제 사회 행정적 단위로서 기능을 수행한다. 자치단체장의 역할과 소신은 매우 중요하며, 최근 들어 공약 선거의 중요성에 대한 국민적 이해와 관심이 높아지고 있는 실정이다. 이에 본 연구는 도시계획의 주요한 변수로서 작용할 것으로 판단되는 선거공약에 대하여 연구하였다. 특히 선거공약이 도시공간구조 및 지역경제구조에 미치는 영향을 분석하고자 하였다. 선거공약과 용도지역 면적변화 관계를 분석한 결과 개발관련 전체 용도지역 면적변화는 선거공약과 관계가 있음을 알 수 있었다. 이를 용도지역별로 세분화해본 결과 선거공약과 도시공간구조 중 용도지역 변화와의 관계는 주거지역을 중심으로 비교적 높은 관계가 형성됨을 알 수 있다. 또한 인구요인과 선거공약간의 관계가 높게 나타남을 알 수 있다. 이를 통해 선거공약과 도시공간구조 변화와는 관계가 있는 것으로 판단할 수 있으며, 특히 주거와 관련된 부문들의 변화가 높은 상관관계를 보일 것으로 예상할 수 있다. 그 결과 지역경제개발관련 공약이 많은 지역에서는 일반복지행정 부문의 공약이 적게 나타나는 것을 알 수 있었다. 즉 지역경제개발지향형 공약제시지역과 일반 복지 행정지향형 공약제시지역으로 구분이 가능할 것으로 판단되며, 이러한 공약의 실현을 통해 도시공간구조 변화에 영향을 미칠 가능성이 있을 것으로 판단된다.

시멘틱 웹의 효율적 검색을 지원하는 저장 구조의 요소 기술 설계 (Designing Requisite Techniques of Storage Structuresupporting Efficient Retrieval in Semantic Web)

  • 신판섭
    • 한국컴퓨터산업학회논문지
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    • 제7권3호
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    • pp.227-236
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    • 2006
  • 차세대 웹 환경을 위한 시맨틱 웹에 대한 관심이 날로 증대되고 있다. 이와 더불어 시맨틱 웹에서 자원의 의미적인 관계를 표현하기 위한 언어들에 대한 연구가 활발히 진행 중이다. 특히 이러한 연구의 시작점으로 RDF, DAML+OIL같은 여러 온톨로지 언어들이 등장하였지만 자원의 특성에 대한 기술이나 그들 간의 관계에 대한 정의를 명확하게 표현하기에는 미흡한 점이 많다. 그러나 최근에 제안된 OWL은 RDF나 RDF 스키마를 확장하여 보다 의미있는 자원의 관계를 정의할 수 있다. 본 논문에서는 OWL로 표현된 문서를 저장하기 위한 구조를 관계형 데이터베이스를 기반으로 제안한다. 본 논문에서 제안한 저장 구조는 기존의 RDF와 RDF 스키마를 위한 저장 구조를 확장하여, OWL을 통해 제공되는 클래스나 속성간의 동일성, 또는 이질성, 여러 클래스의 집합 관계 등의 추가적 기능을 지원하는데 목적을 두고 있다. 또한 제안한 저장구조를 이용한 OWL 문서의 질의 형태를 분석하고 추가 질의 형태를 제안하고, OWL 문서의 저장 모듈과 사용자 인터페이스, 질의 처리 모듈로 구성된 OWL 저장 시스템을 설계하고 구현한다.

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혼합 유기박막의 자격 전류 (Stimulus Current of Mixed Organic Thin Films)

  • 조수영;이경섭
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 추계학술대회 논문집 학회본부 C
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    • pp.464-466
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    • 2000
  • In the study We measured the MDC across lipidazobenzene monolayer system was the substrate. We discuss the cis-trans isomerization in Langmuir-Blodgett(LB) films and examine the relationship between the structure of mixed LB films and the generation of MDCs due to photoisomerization. As results, mixed induce monolayer of view to memory and switching, it's own function by particles level think. Also, transmission results of stimulus signal it's form by current to appear.

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Improved stress recovery for elements at boundaries

  • Stephen, D.B.;Steven, G.P.
    • Structural Engineering and Mechanics
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    • 제5권2호
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    • pp.127-135
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    • 1997
  • Patch recovery attempts to derive a more accurate stress filed over a particular element than the finite element shape function used for that particular element. Elements that have a free edge being the boundary to the structure have particular stress relationship that can be incorporated to the stress field to improve the accuracy of the approximation.