• Title/Summary/Keyword: interior-point method

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A Reason of Reckless Development and Method of Improvement (난개발 발생원인 분석과 개선방안)

  • Lim, Myung-Gu
    • Journal of The Korean Digital Architecture Interior Association
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    • v.7 no.1
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    • pp.7-13
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    • 2007
  • Virtues and advantages of urban areas would be tarnished if benefits and convenience of the cities were overwhelmed by the logics of selfish development and reckless expansion. Reckless development, which is not limited to a certain point of time and space, has become a social and environmental problem for a long period of time, taking advantage of legal and administrative loopholes. In the metropolitan area surrounding the capital, especially Yongin, where semi-agricultural zones have been developed recklessly, serious problems have already emerged including the lack of infrastructure, environmental contamination, destruction of scenic landscapes, encroachment of good farmland and forest and invitation of natural disasters. This study assumed all these problems as the consequence of the inadequacy of the legislative system and analyzed the causes. The study also suggests some countermeasures. Most of all, a "planning-first, development-later" practice should be brought into place so that various experts could participate for a detailed planning. Public development should also be expanded so that beneficial public facilities could be set up in the first place. A system for reasonable development charges should also be come up with. In this process, the role of the administrators becomes yet more important for a long-term, systematic planning of future cities, accompanied by public housing developments.

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A Study on the Characteristics of Exhibition Space Planning in Museums Desinged by Richard Meier (리차드 마이어의 뮤지엄건축 전시공간구성 특성에 관한 연구)

  • Lee Sung-Hoon;Park Yong-Hwan
    • Korean Institute of Interior Design Journal
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    • v.15 no.4 s.57
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    • pp.97-105
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    • 2006
  • Richard Meier has earned his recognition by developing his unique design approach and keeping consistency in design concept in museum architecture over the years of his practice. The purpose of this study is finding common characteristics of the exhibition space spatial organization based on actual site visit analysis. This study will mainly focus on the museums Richard Meier designed between 1979, which is the year he started, until 1997 which is the year Getty Museum opened. For the purpose of this study, Museum of Applied Art, Frankfurt(1979-85), High Museum of Art, Atlanta(1980-83), Museum of Contemporary Art, Barcelona(1987-95), and The J.Paul Getty Museum(1984-1997) have been selected for analysis. This study will reveal fundamental characteristics of Richard Meier's architectural philosophy through his early residential projects and give background information of the 'white architecture' Close analysis will continue by reviewing four museums selected specifically for this study and focus more from the point of issues such as; 1)applying various axis in space programming, 2)symbolic significance of exhibition space, 3)hierarchy of each space, 4)design elements and characteristics of the exhibition space. Furthermore, quantitative research on exhibition space organization will be done by Space Syntax theory method. The result of the study will be a significant data in designing a modern museum.

Automatic Calculation of Interior Volume of Refrigerator by Hole Filling Algorithm (분해모델과 구멍 메움 알고리즘을 이용한 냉장고 내부 용적의 자동 계산)

  • Park, Raesung;Fu, Jianhui;Jung, Yoongho;Park, Mingeun
    • Korean Journal of Computational Design and Engineering
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    • v.22 no.1
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    • pp.59-69
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    • 2017
  • Internal capacity of a refrigerator is an important indicator for design and purchasing criteria. The components facing the internal space may have holes or gaps between parts. In traditional way, design engineers manually remodeled the parts to fill the holes and the gaps for enclosed boundary of the internal space. Then they calculated internal volume by subtracting the assembly of parts from its enclosing volume. However, filling holes and gaps is not an automated process requiring a plenty of labor and time. In this research, we have developed a voxel-based method to estimate the internal volume of a refrigerator automatically. It starts transforming all components facing the interior space into voxels and fills all holes and gaps automatically by the developed hole-filling algorithm to form a completely closed boundary of the assembly. Then, it identifies the boundary voxels that are facing to the internal voxels with any part of the component. After getting the intersection points between the boundary voxels and the surfaces of components, it generates the boundary surface of triangular facets with the intersection points. Finally, it estimates the internal volume by adding volume of each tetrahedron composed of a triangle of boundary surface and an arbitrary point.

A Study on Organistic Line Extension on Digital Space - Focus on NOX digital space - (디지털 공간에 나타난 선의 유기체적 확장성에 관한 연구 - NOX 디지털 공간을 중심으로 -)

  • Yu, Mi-Yeon;Yoon, Jae-Eun
    • Korean Institute of Interior Design Journal
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    • v.17 no.3
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    • pp.148-155
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    • 2008
  • The following research focuses on the formation method of digital space by organistic line extension among various digital formation methods. The paper reflects on the meaning and concept of today's digitalism which enables the application of complex organistic system on space through advanced technology. It also explores the concept of a line in topology which differs in assumptive meaning from traditional Euclidian geometry. The findings of the research are that first, digital space is not optimized, but is a tentative formation in process. A digital space encompasses characteristics such as infinity, possibility, potential, asymmetry, and the force of virtuality such characteristics are expressed through a moving surface constantly changing with direction. Second, a digital space formed by line extension is inseparable and durable since no measurement or dimension is predetermined. Furthermore, its sense of direction and flexibility gives it a feeling of a living organism. Third, a Euclidian methodology called 'NURBS' is being developed to express such a dynamic digital space; this is reflected through three elements, control point, weights, and knots to effectively reflect the characteristics of virtuality. The opportunities of digital space are infinite, and the possibilities of formation methods likewise vast.

A Study on Startup-Characteristic of Sensorless Controlled IPMSM Employing Sliding Mode Observer (슬라이딩 모드 관측기를 이용한 IPMSM의 센서리스 제어의 기동특성에 관한 연구)

  • Kim, Sang-Hun;Kwon, Soon-Jae;Kim, Marn-Go;Jung, Young-Seok
    • The Transactions of the Korean Institute of Power Electronics
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    • v.16 no.1
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    • pp.38-43
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    • 2011
  • This paper presents the improvement of start-up characteristic of sensorless controlled IPMSM(Interior Permanent Magnet Synchronous Motor) with SMO(Sliding Mode Observer). It is difficult to utilize the rotor position information at starting point for the back EMF estimation based sensorless control. For this reason, open loop control is normally used during start-up period. However, changing from open loop to closed loop control might bring a problem on the transient characteristics for difference load conditions. To solve this problem, we add another rotor angle controller. Simulation results and experimental results are presented to verify proposed method.

Improved depth map generation method using Vanishing Point area (소실점 영역을 이용한 개선된 Depth-map 생성 기법)

  • Ban, Kyeong-Jin;Kim, Jong-Chan;Kim, Kyoung-Ok;Kim, Eung-Kon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.10a
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    • pp.357-359
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    • 2010
  • In monocular images that are used to determine the depth of the vanishing point, the buildings, roads and buildings, such as outdoor video or hallway with room inside for the interior structure, such as the vanishing point in the video is a very strong depth cue. Depth map using the vanishing point in the three-dimensional space, the two-dimensional imaging is used to restore the structure. But if there is a vanishing point vanishing point in the video also depends on the location of the relative depth of different ways to express that need. In this paper we present images of a vanishing point with respect to the improved depth-map was created. Proposed an area where the loss of seven points and areas defined as areas along the proposed direction of different depth.

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A semi-automated method for integrating textural and material data into as-built BIM using TIS

  • Zabin, Asem;Khalil, Baha;Ali, Tarig;Abdalla, Jamal A.;Elaksher, Ahmed
    • Advances in Computational Design
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    • v.5 no.2
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    • pp.127-146
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    • 2020
  • Building Information Modeling (BIM) is increasingly used throughout the facility's life cycle for various applications, such as design, construction, facility management, and maintenance. For existing buildings, the geometry of as-built BIM is often constructed using dense, three dimensional (3D) point clouds data obtained with laser scanners. Traditionally, as-built BIM systems do not contain the material and textural information of the buildings' elements. This paper presents a semi-automatic method for generation of material and texture rich as-built BIM. The method captures and integrates material and textural information of building elements into as-built BIM using thermal infrared sensing (TIS). The proposed method uses TIS to capture thermal images of the interior walls of an existing building. These images are then processed to extract the interior walls using a segmentation algorithm. The digital numbers in the resulted images are then transformed into radiance values that represent the emitted thermal infrared radiation. Machine learning techniques are then applied to build a correlation between the radiance values and the material type in each image. The radiance values were used to extract textural information from the images. The extracted textural and material information are then robustly integrated into the as-built BIM providing the data needed for the assessment of building conditions in general including energy efficiency, among others.

A Study on Emotional Characteristics expressed in Toyo Ito's Design Works (이토 도요 공간 디자인에 나타난 감성적 표현 특성에 관한 연구)

  • Park, Su-Jeong;Suh, Swoo-Kyung;Oh, Young-Keun
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2005.05a
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    • pp.69-74
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    • 2005
  • Despite the advancement of knowledge and techniques, architectural design has been developed by similar method and science as the logical tool since the development of Le Corbusier's 'module'. However, in the new millenium emotional design has become a key issue and today is the turning point regarding new method for designing human space. While architecture discipline of the West focused on logic, Japan based its origin in eastern discipline has developed a unique design concept called 'metabolism' and advanced it very effectively. Since its development of the unique concept, Toyo Ito has become one of the most Influential architect in and out of Japan who devoted his design career in developing new space concept. This study is specifically focused on Ito's project by finding characteristics of his projects and analyze emotional design factors by using 5 analytical tool - experiencing the space, five senses, landmark, sequence, and scale. Ito's work between 2000-2004, such as Sendai Mediatheque, showed more visible sign of emotional design characteristics compared to the works done in 1990's. Because of the analytical studies researching those emotional design characteristics and methods, the future advancement in new space design will be possible with great success. The result proves that continuing proper analysis and research in design method will assist in approaching new space design method into more advanced realm in very efficient time period with more definite design elements to accomodate and fulfill human needs in given space.

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Minimization of Packet Delay in a Mobile Data Collector (MDC)-based Data Gathering Network (MDC 기반 데이터 수집 네트워크에서의 패킷지연 최소화)

  • Dasgupta, Rumpa;Yoon, Seokhoon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.16 no.4
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    • pp.89-96
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    • 2016
  • In this paper, we study mobile data collector (MDC) based data-gathering schemes in wireless sensor networks. In Such networks, MDCs are used to collect data from the environment and transfer them to the sink. The majority of existing data-gathering schemes suffer from high data-gathering latency because they use only a single MDC. Although some schemes use multiple MDCs, they focus on maximizing network lifetime rather than minimizing packet delay. In order to address the limitations of existing schemes, this paper focuses on minimizing packet delay for given number of MDCs and minimizing the number of MDCs for a given delay bound of packets. To achieve the minimum packet delay and minimum number of MDCs, two optimization problems are formulated, and traveling distance and traveling time of MDCs are estimated. The interior-point algorithm is used to obtain the optimal solution for each optimization problem. Numerical results and analysis are presented to validate the proposed method.

A study on the characteristics of color application indicated from urban housing complex - A Forcuse on the Kirchsteigfeld Housing Complex in Potsdam City - (도시주거단지에 나타난 색채사용특성에 관한 연구 - 독일 포츠담시 Kirchsteigfeld 주거단지를 중심으로 -)

  • Lee, Seon-Min;Lee, Min-Seok
    • Korean Institute of Interior Design Journal
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    • v.16 no.6
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    • pp.250-257
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    • 2007
  • Characteristics of color application indicated from Kirchsteigfeld is presented the various points of view to be preserved urban housing color. It had been handled as environmental color by view point of community and connectivity rather than color scheme of single housing. First, color to be consisted of basis for urban entirely as background color in urban housing complex has been indicated the bright and cheerful feelings and expressed to be introduced mostly from the single color system. Second, characteristics to be inhibited strongly from housing complex had been indicated by restricted four types of color, formulated the overall context and change through accent and the change from disposition of principal and the accessary of color scheme. In this case, it was not regular formulation, but as a whole category view, it could be provided by orderly regularity system strictly Particularly it had been applied as a whole for lightness change by single color, introduced the different color of building to be centered or remained by a visual point. This had been formed to introduction of color by stand points of housing group not introduction to color by sole concept of building. Third, emphasizing of morphologic feeling by using of difference of lightness, it could be indicated the mild and comfortable stereo-type sensibility from the overall types of housing, we could understand for formation of color code by lightness of slightly differences. Fourth, it had been taken the convenient adaptation method for maintenance of simple graphic system as a environmental color. It has considerable advantage for sustainability of color to indicate on finishing material, form and detail in architecture, as the sole separated color not to be complicated when to be painted over and again or managed continuously.