• 제목/요약/키워드: Effective Space Use

검색결과 593건 처리시간 0.032초

Toward the Application of a Critical-Chain-Project-Management-based Framework on Max-plus Linear Systems

  • Takahashi, Hirotaka;Goto, Hiroyuki;Kasahara, Munenori
    • Industrial Engineering and Management Systems
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    • 제8권3호
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    • pp.155-161
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    • 2009
  • We focus on discrete event systems with a structure of parallel processing, synchronization, and no-concurrency. We use max-plus algebra, which is an effective approach for controller design for this type of system, for modeling and formulation. Since a typical feature of this type of system is that the initial schedule is frequently changed due to unpredictable disturbances, we use a simple model and numerical examples to examine the possibility of applying the concepts of the feeding buffer and the project buffer of critical chain project management (CCPM) on max-plus linear discrete event systems in order to control the occurrence of an undesirable state change. The application of a CCPM-based framework on a max-plus linear discrete event system was proven to be effective.

초기 발목관절염의 진단과 치료 (Diagnosis and Treatment of Early Ankle Osteoarthritis)

  • 서상교
    • 대한족부족관절학회지
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    • 제21권4호
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    • pp.117-121
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    • 2017
  • The incidence of arthritis in the ankle is relatively low compared to other joints. On the other hand, it receives a lot of pressure per unit area, is vulnerable to damage, and arthritis can arise after trauma. Early ankle arthritis can be considered a case of osteophyte subchondral sclerosis without narrowing of the joint space. Conservative treatment, such as weight control, insole use, drug use, and injection therapy for early ankle arthritis, is effective and can be considered before surgical treatment. Nevertheless, if pain is persistent, surgical treatment to remove bony spurs is effective. Ensuring that there is no other cause of pain when deciding whether to perform an operation is very important.

창의적 업무지원을 위한 공용공간 활성화 현황조사에 관한 연구 (The Research on the Present Situation for Supporting Creative Work by Revitalization of Common Space)

  • 신동관;한영호
    • 한국실내디자인학회논문집
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    • 제21권4호
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    • pp.172-180
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    • 2012
  • Recently, the definition of work space contains so many meanings. Basically, this means space where handling various information and developing numerous creative activities. Moreover, the work space is important not only for individual itself but also organizational development. This research is studied for suggesting revitalization of advanced work efficiency, deriving motivation as well as creative operation support for harmonious communication. In order to make the better creative work places, "concentration and motivating interests between members of organization", "Necessity of environment for development and operational progress of work", "improvement and creativity of work and importance of the physical environment" and "harmonious communication and development of advanced community" should be considered. This research arranged based on ALCEMIS model and used actual examples on each step for better understanding of creative work spaces. ALCEMIS model is as follows: (1) Opportunity Finding (2) Fact Finding (3) Opportunity Definition (4) Idea Finding (5) Evaluate & Select (6) Plan (7) Acceptance (8)Execution' over the eight-step details to proceed through the 1. Discovert ((1)+(2)) 2. Dream ((3)+(4)) 3. Design((5)+(6)) 4. Destiny((7)+(8))y" It has been understood that many works related to creative jobs make good use of public spaces to progress operational improvement. The place where co-workers share with can create more effective and fulfilling outcome and satisfaction than independent and exclusive places. Especially creative jobs need this kind of spaces for better communication and cooperation.

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소도읍 재래시장의 공간이용유형에 의한 환경개선 - 충북 음성군 금왕재래시장을 중심으로 - (Environmental Improvement Develope by Spatial Utilization Pattern of Conventional Market in Small Town -Focused on Geum-wang Market in Chung-buk Province-)

  • 한상호
    • 한국농촌건축학회논문집
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    • 제10권2호
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    • pp.27-36
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    • 2008
  • This study is progressing or suggests effective space planning for rural village area conventional markets that is planning business market modernization process. Rural village area conventional markets of small scale are inputting a lot of efforts and financial resources for activation. Also, I wish to quote activation plan for rural village area conventional markets that face in stagnation. Studied spatial form and conventional market activation factors by space use special quality of rural village area conventional markets for architectural planning plan presentation. Investigated spatial change for several years that appear in Geum-wang conventional market for this. As a result, could deduce plans of space improvement plan for conventional market space positively. Also, through this study, suggest activation plan of conventional market that display similar space type including Geum-wang conventional market. Therefore, environment improvement of conventional market's type and special quality based on space activation elements and need space environment improvement plan the architecture plan in early planning phase of business.

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Fast Recovery Routing Algorithm for Software Defined Network based Operationally Responsive Space Satellite Networks

  • Jiang, Lei;Feng, Jing;Shen, Ye;Xiong, Xinli
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제10권7호
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    • pp.2936-2951
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    • 2016
  • An emerging satellite technology, Operationally Responsive Space (ORS) is expected to provide a fast and flexible solution for emergency response, such as target tracking, dense earth observation, communicate relaying and so on. To realize large distance transmission, we propose the use of available relay satellites as relay nodes. Accordingly, we apply software defined network (SDN) technology to ORS networks. We additionally propose a satellite network architecture refered to as the SDN-based ORS-Satellite (Sat) networking scheme (SDOS). To overcome the issures of node failures and dynamic topology changes of satellite networks, we combine centralized and distributed routing mechanisms and propose a fast recovery routing algorithm (FRA) for SDOS. In this routing method, we use centralized routing as the base mode.The distributed opportunistic routing starts when node failures or congestion occur. The performance of the proposed routing method was validated through extensive computer simulations.The results demonstrate that the method is effective in terms of resoving low end-to-end delay, jitter and packet drops.

City Gas Consumption Analysis per 1m2 according to Exclusive Dwelling Area in Residential Buildings - Focused on case of Ulsan -

  • Yu, YeongJin;Kim, Sangho;Yang, SungPil;Son, Kiyoung
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.734-735
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    • 2015
  • Currently, effective energy management of buildings is necessary because of accelerated global climate change and resource crisis. Especially, in the case of South Korea, city gas consumption occupies 11.8% of the total energy and 39.6% is residential use among them. Therefore, for reducing the city gas consumption, the effectiveness of residential use is needed. To address this issue, the objective of this study is to analyze the difference of the city gas consumption according to the space arrangement in the apartment building. To achieve this objective, an apartment complex having over 1,000 households was selected then, according to the space arrangement such as south-east and south-west, the data of 59.97m2 and 84.96m2 were analyzed by using statistics method. As a result, in 59.97m2 and 84.96m2, the total city gas amount in 2012 showed that 9.2% and 8.4% were more increased at south-west than southeast respectively. In the future, the findings of this study can be used to develop the prediction model of city gas consumption in apartment building.

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Ray-Tracing 알고리즘을 이용한 CCTV배치 평가시뮬레이션 (Simulation to Evaluate CCTV Positioning in Use of Ray-Tracing Algorithm)

  • 김석태;안상욱
    • 한국실내디자인학회논문집
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    • 제22권6호
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    • pp.40-48
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    • 2013
  • Utilization of CCTV in crime prevention for public safety is accepted as the most effective measure in terms of crime prevention and control. Also, it is frequently used as a device that shows evidence of an unexpected situation or record on public social relationship. However, it is rare to find a study that qualitatively accessed the monitoring performance of a certain space depending on the choice and positioning of CCTVs. Thus, this study suggested a technology that can quantitatively compare and assess the monitoring performance of CCTVs depending on view angle and effective sight range of cameras as well as the monitoring performance depending on positioning measures. For the analysis, the concept of 3-dimensional surveillance field in the form of a frustum was suggested while deriving 3-dimensional range of sight and quantitative monitoring performance by applying Isovist theory. For the analysis technology, space of analysis subject, point of view (camera), and target point (measurement node) were installed at a 3-dimensional space and in use of ray-tracing algorithm, the line segment that was visually connected between the point of view and target point was extracted and accumulated. For such verification, analysis application was constructed and then applied to four alternative models on view angle and distance as well as four alternatives on positioning in order to verify its efficacy. Through the experiment, it was possible to compare and assess visibility depending on alternatives while quantifying the results by understanding the shadow areas beyond the monitoring range.

루이스 칸의 작품에 나타난 실내공간의 특성 연구 (A Study on the Characteristics of Interior Space in the Works of Louis I. Kahn)

  • 김용립
    • 한국실내디자인학회논문집
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    • 제14권3호
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    • pp.114-121
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    • 2005
  • Louis 1. Kahn was a wise architect who learned from history. He developed his own unique architecture by combining his creative sense with design principles and vocabularies that can be found in historical architecture. When restricting a space, he surrounded the space with thick walls as it had been done in historical buildings. The interior space encompassed by this method became a center-oriented and stable space. The objective of this study is to find the characteristics of Kahn's interior spaces by analyzing his projects in terms of space, form, daylight and materials. For this purpose, five works that are considered to have significance from the aspect of interior design were selected and analyzed. The characteristics realized through this study are as follows. A) Spatial features: 1) Generally speaking, each required space has been arranged symmetrically. 2) Being clearly defined as the main space, the subsidiary space, or the service space, each space also was placed very functionally. 3) The space encompassed by thick walls became a center-oriented, stable space. And in most case, it was characterized as a dark space. B) Formative features: 4) The space was defined as a basic solid such as a cylinder, a hexahedron, and an octagonal box, and was developed into a complex shape by the recessed windows. 5) Historical vocabularies such as an arch, a vault, and a dome were reinterpreted in new ways by kahn's own eyes. 6) Haying diverse shapes, the skylights enrich the space in terms of form. C) Daylight feature: 7) The vertical light entering through the skylights creates a solemn and mysterious atmosphere. 8) Given the shadows from the windows that change according to time, the interior space becomes a very vivid space. D) Material feature: 9) Harmonized with cold and smooth materials such as exposed concrete, metal, and glass, the interior space provides a modern atmosphere. 10) Warm appearing wood was used for furniture and part of walls or floors. The effective use of wood takes on a role that is quite complementary to the cold ambience of the smooth and cold materials. 11) With flexibility In building shapes, the concrete becomes the form-endowing materials.

동일인 인식을 위한 컬러 공간의 탐색 및 결합 (Color Space Exploration and Fusion for Person Re-identification)

  • 남영호;김민기
    • 한국멀티미디어학회논문지
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    • 제19권10호
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    • pp.1782-1791
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    • 2016
  • Various color spaces such as RGB, HSV, log-chromaticity have been used in the field of person re-identification. However, not enough studies have been done to find suitable color space for the re-identification. This paper reviews color invariance of color spaces by diagonal model and explores the suitability of each color space in the application of person re-identification. It also proposes a method for person re-identification based on a histogram refinement technique and some fusion strategies of color spaces. Two public datasets (ALOI and ImageLab) were used for the suitability test on color space and the ImageLab dataset was used for evaluating the feasibility of the proposed method for person re-identification. Experimental results show that RGB and HSV are more suitable for the re-identification problem than other color spaces such as normalized RGB and log-chromaticity. The cumulative recognition rates up to the third rank under RGB and HSV were 79.3% and 83.6% respectively. Furthermore, the fusion strategy using max score showed performance improvement of 16% or more. These results show that the proposed method is more effective than some other methods that use single color space in person re-identification.

대학 강의실 좌석이용형태에 관한 연구 (A Study on Preference of Lecture Room by Seating Layout)

  • 소갑수;박민혁;김승제
    • 교육시설 논문지
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    • 제20권4호
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    • pp.3-10
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    • 2013
  • Basic precondition for effective curriculum on learning activities to take place, the internal and external environment of the school facilities, improve the environment of the classroom space and etc. Specifically, the use of classroom space, hardly learners improve their academic motivation to achievement tend to concentrate within the party regularly scheduled class hours. Physical environment surrounding them is giving considerable impact for behavioral psychological and bodily change of the learners. In this study, we are focused on the form of the learner in the general classroom space and classroom environment that can increase the learning effect will be examined. Consequently, What is appropriate classroom environment for learning increase the concentration of elements are presented.