• 한국공간구조학회논문집
• /
• 제16권1호
• /
• pp.73-84
• /
• 2016

This study analyzes the four composition elements : profile, anchorage and connection, material and member rigidity, stability, as the main composition design elements of flexure structure systems, in order to explore possibilities for more various structure designs in architectures with flexure structure system. It also examines typical design methods that use the mentioned four composition elements. At the results, this research presents an understanding of the differences between funicular shape and non-funicular shape and mechanical features of the shapes in the profile element, regarding to the ratio of rise height to span length(f/l). Also, the typical design methods are presented for the designable usages of the hinge joints and the fix joints, and for the applications of member rigidity expressed by the index of the ratio of member depth to span length(d/l). And it was presented that connection styles, addition of brace members, placement of shear walls are the main design methods in the stability element. This data would be useful to architectural designs concerning integrated design with structures.

• 동력기계공학회지
• /
• 제13권1호
• /
• pp.19-25
• /
• 2009

This paper is a study on the link composition design of a double link type level luffing jib crane using path generation synthesis passing through three precision points according to parameters, the length of backstay, the ratio of fly jib length between two moving hinges to the total length of fly jib, the location of a intermediate passing point etc. when the maximum and minimum working radius of the crane are given. The performance of the crane depends on the deviation of the luffing trajectory at fly jib tip. The luffing trajectories according to the above parameters are analyzed and shown in graphs by the developed computer program. In a real-life design, some trials are needed to arrive at a proper link composition design. Therefore, it is expected that the present computer program can rapidly and exactly deal with a link composition design proper to the design criteria of the crane.

• 산업경영시스템학회지
• /
• 제31권4호
• /
• pp.100-105
• /
• 2008

Cost reduction, time to market, and quality improvement of software product are critical issues to the software companies which try to survive in recent competitive market environments. Software Product Line Engineering (SPLE) is one of the approaches to address these issues. The goal of software product line is to maximize the software reuse and achieve the best productivity with the minimum cost. In software product line, software components are classified into the common and variable modules for composition work. In this paper, we proposed a dynamic composition process based on aspect-oriented programming methodology in which software requirements are classified into the core-concerns and cross-cutting concerns, and then assembled into the final software product. It enables developers to concentrate on the core logics of given problem, not the side-issues of software product such as transactions and logging. We also proposed useful composition patterns based on aspect oriented programming paradigm. Finally, we implemented a prototype of the proposed process using Java and Aspect to show the proposed approach's feasibility. The scenario of the prototype is based on the embedded analysis software of telecommunication devices.

• 한국농촌건축학회논문집
• /
• 제3권2호
• /
• pp.71-78
• /
• 2001

The purpose of this study was to analyze the space composition and utilization characteristics of cultural facilities in city which was surrounded by rural area. For this study, it was surveyed 18 cultural facilities including PyungTaek-city in our country. The below was analyzed : The first, the present conditions of space program and functions of central cultural facilities in small city. The second, a frequency and peculiarity in utilization of it. And the third is about system of management. A data of design which can be directly applied by above process is like the below. The function of cultural facilities in city can be fixed from space composition with regional specifics and similarity. The space composition of cultural facilities is diversified by art performance and assembly space, by exhibitional space and reading space, and by the fact whether there is public or not. We know hall of cultural facilities has multi-purpose. Management system needs some changes throughout participation of citizen or experts for more active usage.

• Advances in nano research
• /
• 제17권3호
• /
• pp.285-291
• /
• 2024

The paper considers one of the new applications of computer methods in music composition, using smart nanobeams-an integration of advanced computational techniques with new, specially designed materials for enhanced performance capabilities in music composition. The research applies some peculiar properties of smart nanobeams, embedded with piezoelectric materials that modulate and control sound vibrations in real-time. The study is conducted to determine the effects of changes in the length, thickness of nanobeams and the applied voltage on acoustical properties and the tone quality of musical instruments with the help of numerical simulations and optimization algorithms. By means of piezo-elasticity theory, different governing equations of nanobeam systems can be derived, which are solved by the numerical method to predict the dynamic behavior of the system under different conditions. Results show that manipulation of the parameters allows great control over pitch, timbre, and resonance of the instrument; such a system offers new ways in which composers and performers can create music. This research also validates the computational model against available theoretical data, proving the accuracy and possible applications of the former. The work thus marks a large step towards the intersection of music composition with smart material technology, and, when further developed, it would mean that smart nanobeams could revolutionize the process for composing and performing music on these instruments.

• 한국실내디자인학회논문집
• /
• 제15권1호
• /
• pp.121-130
• /
• 2006

The key role of performance facilities is to provide the stage shape and stage system suitable for the purpose and the property of public performance. The purpose of this study is to draw comparison analysis about the stage construction and stage machine system of the specialty theater or the multiple purpose performance facilities. The progress of the research is as followings. 1. Investigation into literature and catching on physical composition in the performing facilities, 2. Analysis of the stage organization, items of performance, construction form of stage machine systems, conversion system of the analysis samples, 3. A suggestion of the standard model of stage by each scales, through the such continuous analysis. And it was founded that the relation of stage composition, production type, stage system and distribution, and also the basic data between each elements. On the basis of the results, this study proposes the data and the application methods in domestic performance space when we are setting up the plan of performance facilities.

• 한국식품조리과학회지
• /
• 제13권2호
• /
• pp.87-91
• /
• 1997

방사구와 비방사구에서 채취한 달걀 난황을 배소·압착하여 얻은 난황유를 Folch법으로 정제한 후 gas chromatography로 지방산 조성을 분석한 결과는 다음과 같다. 난황유의 총지질과 중성지질의 지방산 조성은 oleic acid, palmitic acid, linoleic acid 순으로 주성분을 이루었고, 당지질은 palmitic acid, oleic acid, stearic acid, lauric acid 순으로, 인지질은 oleic acid, lauric acid, palmitic acid 순으로 주성분을 나타냈다. 포화지방산 함량은 방사구 보다 비방사구에서 약간 높았고, 포화지방산에 대한 불포화지방산의 비율(USFA/SFA)은 비방사구보다 방사구에서 높았다.

• 정보처리학회논문지D
• /
• 제12D권6호
• /
• pp.889-898
• /
• 2005

최근에 동적으로, 즉 요구가 있는 즉시 서비스들을 조합하는 동적 웹 서비스 조합은 가장 큰 관심사 중 하나이다. 지금까지 동적 웹 서비스조합에 관한 많은 연구들이 수행되어졌는데 주로 사람이 개입된 반자동 대화식 조합 기법들이 제안되었다. 또한 이들 연구에서 탐색 알고리즘 및 워크플로우 설계 기법들이 부분적으로는 기술되어 있으나. 웹 서비스 조합 자동화를 위한 전반적인 워크플로우 처리과정을 기술한 연구는 아직 없다. 본 논문은 웹 서비스 조합 자동화 기법에 초점을 맞추고 있다. 주된 아이디어는 시멘틱 웹을 실현하기 위한 웹 온톨로지와 비즈니스분야에서 성공적으로 활용되고 있는 워크플로우 기법들을 적용하여 웹 서비스 조합 자동화 시스템을 구현하는 것이다. 본 연구에서는 웹 서비스발견을 위해 매칭 알고리즘이 제안되고, 웹 서비스들 간 상호연결을 지원하기 위해 매칭 알고리즘에 온톨로지 개념이 적용된다. 그리고 웹 서비스 조합 자동화를 지원하기 위한 워크플로우 실행계획이 기술된다. 마지막으로 실 데이터 실험을 통해 제안 시스템의 우수성을 보인다.

• 디지털콘텐츠학회 논문지
• /
• 제11권1호
• /
• pp.9-16
• /
• 2010

본 논문에서는 위의 문제들을 해결하고자 작곡, 드럼 믹싱, 청음 기능을 제공하는 시스템을 제안한다. 본 논문의 공헌은 다음과 같다. 첫째, 시간과 장소에 구애 받지 않고 웹 브라우저를 통해 작곡, 리스닝, 검색을 할 수 있도록 하는 웹 음악저작 시스템을 제안한다. 둘째, 리듬을 관리하는 드럼 믹싱 기능을 소개한다. 셋째, 음감을 향상시켜주는 게임 콘텐츠를 제안한다. 제안하는 시스템은 사용자가 웹 브라우저를 통하여 언제 어디서나 작곡이 가능하도록 지원하며, 드럼 믹싱을 통하여보다 풍부한 작곡 기능을 제공하고, 청음게임을 통하여 음감향상의 효과를 기대할 수 있는 방법론이 될 수 있을 것으로 기대한다.

• Membrane and Water Treatment
• /
• 제2권4호
• /
• pp.239-250
• /
• 2011

A photovoltaic powered ultrafiltration and reverse osmosis system was tested with a number of natural groundwaters in Australia. The objective of this study was to compare system performance at six remote field locations by assessing the impact of water composition and fluctuating energy on inorganic contaminant removal using a BW30-4040 membrane. Solar irradiance directly affected pressure and flow. Groundwater characteristics (including TDS, salts, heavy metals, and pH), impacted other performance parameters such as retention, specific energy consumption and flux. During continual system operation, retention of ions such as $Ca^{2+}$ and $Mg^{2+}$ was high (> 95%) with each groundwater which can be attributed to steric exclusion. The retention of smaller ions such as $NO_3{^-}$ was affected by weather conditions and groundwater composition, as convection/diffusion dominate retention. When solar irradiance was insufficient or fluctuations too great for system operation, performance deteriorated and retention dropped significantly (< 30% at Ti Tree). Groundwater pH affected flux and retention of smaller ions ($NO_3{^-}$ and $F^-$) because charge repulsion increases with pH. The results highlight variations in system performance (ion retention, flux, specific energy consumption) with real solar irradiance, groundwater composition, and pH conditions.