• 제목/요약/키워드: the exterior

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시멘트 폴리머를 사용한 외장재용 결합재의 고온강도 특성 (High Temperature Compressive Strength of Polymer Cement Composite Apply for 3D Printing Exterior Materials)

  • 신현욱;송훈
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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    • pp.116-117
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    • 2019
  • 3D printing technology can be applied to various industries, and is trapped by major technologies that change existing manufacturing processes. 3D printing materials must satisfy designability, economy and productivity, and building materials are required to have strength and economy secured technology. 3D printing technology of construction field can be divided into structural materials and internal and external materials, and is mainly done by extruding and adapting. Particularly when it is applied as an exterior materials, it is mainly applied to an unstructured exterior materials and high accuracy is required. The exterior materials can be used as a cement composite materials, it is suitable also for a lamination type, and the role of a cement base composite material is important. In this research, we developed a cementitious base binder applicable as a 3D printing exterior materials, confirmed high temperature strength characteristics for application as an exterior materials of buildings and confirmed its possibility.

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Effects of Steel Fiber Reinforcement and the Number of Hooked Bars at R/C Exterior Joints

  • Choi, Ki-Bong
    • KCI Concrete Journal
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    • 제11권3호
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    • pp.181-189
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    • 1999
  • An experimental study was performed on the Pull-out behavior of 90-deg standard hooks from the exterior beam-column connections. the effects of the number of hooked bars and fiber reinforcement of the joint area were investigated with the following conclusions : (1) Under the pull-out action of hooked bars. the damage and cracking of joint area the number of hooks pulling out from a joint increases; (2) Substitution of the transverse column (confining) reinforcement with steel fibers at the joint region effectively reduces the extent of cracking in exterior joints caused by the pull-out of hooked bars; (3) The pull-out strength and post-peak ductility of hooked bars are adversely influenced by the increase in number of hooks pulling out from an exterior joint. Current hooked bar anchorage design guidelines may be improved by considering the effect of the number of hooked bars on anchorage conditions at the exterior joints; and (4) The strength and ductility of hooked bars under pull-out forces are positively influenced by substituting the conventional confining reinforcement of exterior joints with steel fibers . The application of steel fibers to the exterior joints is an effective technique for improving the anchorage conditions of hooked bars, and also for reducing the congestion of reinforcement in the beam-column connections.

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모듈러건축의 외장재 모듈정합설계 및 시공 (MC Design and Construction for Standardization of Exterior Materials of Modular Building)

  • 정준수;임석호;설욱제;백정훈
    • 대한건축학회논문집:계획계
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    • 제34권6호
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    • pp.31-37
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    • 2018
  • With the progress of national policy researches on the modular construction, many studies have been conducted regarding the standardization of interior building materials. However, studies on the standardization of exterior building materials are still insufficient, and there are no dedicated exterior materials for modular construction. In this regard, this study investigated the necessary of standardization through the analysis on 7 kinds of exterior materials used in general buildings and exterior building materials applied to modular apartment houses in order to establish design criteria for the standardization of dedicated modular exterior materials. Based on the analysis results, assembly reference plane in conjunction with inside dimensions was set, and panelizing standardized in five parts was proposed to solve the problem of low exterior material standardization rate. It also proposed elastic gasket and steel bracket details that can compensate for the fabrication errors of unit boxes and construction errors in stacking.

태음인(太陰人)의 표열증설사(表熱證泄瀉)에 관한 문헌연구(文獻硏究) (A Study on Tae-eumin Exterior Heat Syndrome Diarrhea)

  • 정용재;박성식
    • 사상체질의학회지
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    • 제22권2호
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    • pp.16-27
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    • 2010
  • 1. Backgrounds: There are a lack of comprehensive study on Taeeumin Exterior Heat syndrome diarrhea(表熱證泄瀉). Thus, The author examines the content of various literatures related to Tae-eumin Exterior Heat syndrome diarrhea. 2. Methods: Literature examination is used Lee, Je-ma's writings and Sasang Constitutional Medical doctor's writings. Syndrome examination is used Tae-eumin's study on Syndrome of DonguisusebowonGaboGu-bon("咸山沙村東醫壽世保元甲午舊本") and Donguisusebowon("東醫壽世保元") and treatises of the academic world. 3. Results: and Conclusions: 1) "Profuse sweating and reddish and difficult urination"(汗多而小便赤澁) is regard as Taeeumin Interior Febrile Disease(裏熱病). 2) There is no possibility of a misprint about Taeeumin Exterior Heat syndrome diarrhea. Taeeumin Exterior Heat syndrome diarrhea is engaged in both the Exterior and Interior(表裏俱病). 3) It is difficult to prescribe GalgeunHaegi-Tang(葛根解肌湯) instead of Galgeunnabokja-Tang(葛根蘿葍子湯). 4) Tae-eumin Exterior Heat syndrome diarrhea is formed in the early period and absorbed into Donguisusebowon ("東醫壽世保元") in the latter period. "Profuse sweating and reddish and difficult urination" is estimated to be added in the latter period.

소음인(少陰人) 표병증(表病證) 인식의 발전과정을 통한 "소음인 범론(少陰人 泛論)"의 재해석 연구 - 갑오본(甲午本)과 신축본(辛丑本)을 중심으로- (The Study on the Reinterpretation of "Soeumin Bumron(少陰人 泛論)"through Development of Soeumin Exterior Disease in Sasang Constitutional Medicine(SCM))

  • 이지현;권오일;김윤희;황민우
    • 사상체질의학회지
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    • 제23권1호
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    • pp.24-32
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    • 2011
  • 1. Objectives: This research was proposed to reinterpret "Soeumin Bumron(少陰人 泛論)"through development of Soeumin exterior disease in Sasang Constitutional Medicine(SCM). 2. Methods: We chronically compared the conceptions, symptoms, mechanisms and treatments of Soeumin exterior disease from "Donguisusebowon-GabObon(東醫壽世保元甲午本)"(DGO) to " "Donguisusebowon-ShinChukbon(東醫壽世保元辛丑本)"(DSC) 3. Results and Conclusions: (1) The classification standard of Soeumin exterior disease was different in DGO and DSC. (2) Soeumin exterior disease classified Taeyang Disease(太陽病), Yangmyoung Disease(陽明病) in DGO and Ulkwang-syndrome(鬱狂證), Mangyang-syndrome(亡陽證) in DSC. (3) Based on the changes of understanding about Soeumin exterior disease from DGO to DSC, we attempted to reinterpret "Soeumin Bumron(少陰人 泛論)" in view of DSC. In view of DSC, the classification standard of Soeumin exterior disease focused on Warm Yang Qi(陽煖之氣), Healthy energy(保命之主) of Soeumin.

공공청사 리트로핏 설계 시 외부 수평 차양 장치에 따른 에너지 소비량 절감 방안 (The Reduction of Energy Consumption by the Exterior Horizontal Shading Device during Design for the Retrofit of Public Buildings)

  • 어진선;장지훈;이승복;김병선
    • KIEAE Journal
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    • 제17권2호
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    • pp.29-34
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    • 2017
  • Purpose: Recently, significant heat loss through the window takes place in buildings. Nevertheless, there exists little literature concerning the exterior horizontal shading devices and the design criteria are not clearly settled yet. Applying the exterior horizontal shading devices is more efficient as compared to the interior shading devices in that solar radiation can be directly blocked before passing through the window or the envelope. The purpose of this study is to reduce the internal load by designing the exterior horizontal shading devices and verify the degree of reduction in energy consumption. Method: This study aims to reduce energy consumption in cooling and heating through proposing proper length and shape of the exterior horizontal shading devices in public buildings. In the process, actual energy data and the Design Builder simulation program are utilized. In addition, economic aspect is considered to figure out the optimal length of the exterior horizontal shading devices that maximizes efficiency. Result: As a result, the proper length and shape of the exterior horizontal shading devices are provided as follows: 1) Energy consumption in cooling and heating is minimized when the exterior horizontal shading devices are designed as 0.5m*2. 2) Electricity bill is the lowest when the exterior horizontal shading devices are designed as 3.3m*2. The gap between maximum and minimum electricity bill is about 7.8~14%.

공동주택단지 사례분석을 통한 외부보행로 평가 연구 (A Study on the exterior pedestrian passages evaluation through case studies of multi-family housing complex)

  • 김성용;박정은;이효원
    • KIEAE Journal
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    • 제8권1호
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    • pp.61-70
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    • 2008
  • This paper is focused on studying a pedestrian passage that forms exterior space of the housing unit on diverse prerequisites and convenience of residential environment regards to plans for Multi-family Housing Complex. The paper explores the actual usage of a pedestrian passage installed in Multi-family Housing Complex and examine whether the nature-friendly space that includes the exterior pedestrian passage of the housing unit is being applied variously on a pedestrian passage. In order to obtain an analysis of the current status on case study unit, the study has prepared an analyzing tool for the environment in use for the exterior pedestrian passage and was able to construction problematic points by applying the obtained data. Thanks for the analysis, a comprehensive evaluation on the plans for the pedestrian passage was implemented through correlation with a green tract of land, living space and the exterior pedestrian passage installed in Multi-family Housing Complex.

공동주택 외부소음에 대한 실내소음도 평가에 관한 고찰 (Study on evaluating the interior noise about exterior noise of Apartment house)

  • 박영민;김경민
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2014년도 추계학술대회 논문집
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    • pp.848-851
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    • 2014
  • In a small territory like South Korea, the only alternative to accommodate people in a big city is building apartment house. Exterior traffic noise is not inevitable as the apartment house is set up on wayside or main road is newly established near the area. As the request for quiet environment increases for a better quality of life recently, the exterior noise is considered to be resolved. This study shows the present condition of exterior noise of apartments and reviews a need for the improvement by comparing and analyzing the regulations of main country. Finally, considered the evaluating the interior noise in the apartment house.

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치매노인을 위한 시설의 옥외공간에 관한 연구 -미국의 사례를 중심으로- (Exterior Environments for the Elderly with Dementia in the U.S.A.)

  • 곽인숙
    • 가정과삶의질연구
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    • 제21권3호
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    • pp.1-13
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    • 2003
  • The purpose of this study is to understand the importance of exterior environments and to identify the design guidelines for the therapeutic garden for cognitively impaired seniors with Alzheimer's disease and related dementias. The data was collected from 4 Adult Day Care Centers, 2 Nursing Homes, & 1 Assisted living in the U.S.A. from 2001 to 2002 by interview and the floor plan about the outdoor space. Although some may believe that patients with Alzheimer's disease and related disorders are unresponsive to environment, evidence shows that environments especially designed for cognitively impaired seniors can maintain or increase their level of functioning. The use of specially designed exterior environments nay have in reducing incidents of aggressive behavior, and contributing significantly to a wanderer management program. The checklist includes 6 dimensions: safety environment, various sensual stimulations, social interactions, wandering, privacy, and support orientation and reality. The results indicated that the exterior environment have to support wandering behavior, orientation and reality.

COMMUTING ELEMENTS WITH RESPECT TO THE OPERATOR Λ IN INFINITE GROUPS

  • Rezaei, Rashid;Russo, Francesco G.
    • 대한수학회보
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    • 제53권5호
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    • pp.1353-1362
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    • 2016
  • Using the notion of complete nonabelian exterior square $G\hat{\wedge}G$ of a pro-p-group G (p prime), we develop the theory of the exterior degree $\hat{d}(G)$ in the infinite case, focusing on its relations with the probability of commuting pairs d(G). Among the main results of this paper, we describe upper and lower bounds for $\hat{d}(G)$ with respect to d(G). Here the size of the second homology group $H_2(G,\mathbb{Z}_p)$ (over the p-adic integers $\mathbb{Z}_p$) plays a fundamental role. A further result of homological nature is placed at the end, in order to emphasize the influence of $H_2(G,\mathbb{Z}_p)$ both on G and $\hat{d}(G)$.