신한옥의 파라메트릭 부재설계와 알고리즈믹 설계변환

박수훈(Park, Soo-Hoon) 대한건축학회 2013 대한건축학회 학술발표대회 논문집 Vol.33 No.1

서비스 실패 및 고객불만이 기업의 재무성과에 미치는 영향에 관한 실증적 연구

박수훈(Soohoon Park),이윤숙(Younsuk Lee),신호정(Hojung Shin) 한국생산관리학회 2011 한국생산관리학회지 Vol.22 No.1

본 논문에서는 서비스 실패 및 고객불만과 기업의 재무성와의 관계를 조사하였다. 공시된 미국 항공사 자료를 바탕으로 독립 변수인 정시운항률, 결항률, 수하물 취급문제, 항공권 초과판매의 서비스 실패와 고객불만이 종속변수인 기업의 ROA와 ROS에 미치는 영향력을 살펴보았다. 분석에는 PCSE(Panel Correlated Standard Error)패널자료 분석법을 사용하였다. 분석 결과 결항과 고객불만은 기업의 재무성과에 부정적인 영향을 미치는 것으로 나타났다. 특히, 고객불만 변수는 시간차를 두고 재무성과에 부정적인 영향을 주는 것으로 나타났다. 이 결과는 고객불만이 제기 되었을 때 적절한 보상 및 회복 활동이 이루어지지 않은 방치된 불만은 향후 서비스 선택 시 고객의 서비스 전환을 촉진시키고 이는 궁극적으로 기업의 재무성과에 부정적인 영향을 준다는 것을 시사한다. In this study, we explore the effects of service failures and customer complaints on the financial performance of service firms, analyzing the panel data from the U.S. airline industry. We collect the data from the Department of Transportation and the Bureau of Transportation Statistics. Specifically, the independent variables under investigation are arrival on-time, flight cancellation, mishandled baggage, over-sales, and customer complaints. Firm performance as a dependent variable is measured by both ROA and ROS. The statistical association between the independent and the dependent variables are established by a PCSE (Panel Correlated Standard Error) estimation method. The results show that service failures and customer complaints affect the financial performance negatively in general, but not all the failures demonstrate such a negative association with firm performance. In addition, the results indicate that the lagged impact of customer complaints are stronger on the firm performance than the current effect, implying that the negative influence of customer complaints intensifies in the future.

RFID 시스템의 통신 거리 증대를 위한 전파흡수체 개발

박수훈(Soo Hoon Park),김동일(Dong Il Kim),윤상길(Sang Gil Yoon),유건석(Gun Suk Yoo),정인성(In Seong Jeong) 한국전자파학회 2009 한국전자파학회논문지 Vol.20 No.3

본 논문에서는 RFID Tag가 금속판에 접근할 때 통신 거리가 감소되는 RFID 시스템의 통신 거리 증대를 위한 전파흡수체를 개발하였다. 먼저 자성 손실 재료인 Amorphous 금속 분말과 지지재인 CPE(Chlorinated Polyethylene)를 이용하여 조성비별 전파흡수체 샘플을 제작하고, 이 전파흡수체 샘플로부터 구한 재료정수를 이용하여 전파흡수능이 서로 다른 전파흡수체를 각각 설계?제작하였다. 이와 더불어 개발된 전파흡수체를 적용하여 금속에 의해 특성이 열화되는 RFID 태그 안테나의 특성 개선 효과 및 실제 RFID 시스템의 통신 거리 변화를 실험적으로 검토하였다. 그 결과 조성비가 Amorphous metal powder:CPE=80:20 wt.%이고, 두께가 4 ㎜인 전파흡수체가 금속판으로 인해 통신 거리가 0.8 m인 실제 RFID 시스템의 통신 거리를 5.2 m까지 증대시킴을 확인하였다. In this paper, we designed and fabricated the EM wave absorbers for preventing the reduction of the communication range when RFID Tag is approached to a metal plate. The EM wave absorber samples were fabricated with difference composition ratios of Amorphous metal powder and CPE, the absorption abilities of which were simulated by substituting different thicknesses of the EM wave absorbers. Then the EM wave absorbers are manufactured based on the simulated results. By using the EM wave absorbers, we have confirmed the improvement effect of RFID tag antenna and the increase of communication range of RFID system. As a result, it was cleary shown that the communication range of RFID system is improved by adopting the EM wave absorber with the composition ratio of Amorphous metal powder:CPE=80:20 wt.% and the thickness of 4 mm. Thus, it was confirmed that the proposed EM wave absorber can increase the communication range of RFID system from 0.8 m to 5.2 m in UHF band.

도시주거지역 거주성 및 거주성능의 평가 및 관리도구 RPMS의 구현과 활용제안

박수훈(Soo-Hoon Park),이상현(Sanghyun Lee) (사)한국CDE학회 2010 한국CDE학회 논문집 Vol.15 No.1

People evaluate urban residential regions quite frequently and sensitively, considering issues such as locations or ease of use of in-site facilities or nearby urban facilities, and those results are bound to be reflected to real estate costs quite immediately. However, there have been frequently recurring questions regarding objectivity of evaluations in terms of results and methods reflected on indexes such as land costs for various reasons. RPMS -Residence Performance Management System- which targets currently in most cases on urban residential areas, suggests instrumental methodology of objective approach toward sensitive urban residence performance evaluation. This paper explains and suggests instrumental utilization of RPMS and its implementations, evaluation methodology and quantitative way of evaluation. In terms of implementation we explain issues such as adding target locations into new residence planning sites, quantification of properties on evaluation indexes of residential performance and/or habitability in terms of checklists, formulas for evaluation, delicate adjustment of evaluation results by setting weights on evaluation indexes, as well as reports on results. Research on appropriate weights and weight settings regarding evaluation indexes, however, exceeds the range of this paper so that this paper focuses on explaining residence performance evaluation and management methodology.

둔산도시 오픈스페이스 축의 현대적 활성화 방안

박수훈,임현택 대한건축학회지회연합회 2012 대한건축학회지회연합회 학술발표대회논문집 Vol.2012 No.1

윤증고택의 BIM 부재모델링과 꺾음부의 구축적 특성

박수훈(Soo-Hoon Park) (사)한국CDE학회 2013 한국CDE학회 논문집 Vol.18 No.1

The Yoon Jeung residence is a well-known and prototypical aristocratic house example showing typical and interesting characteristics of the traditional houses in the middle region of Korea. When it comes to understanding the architectonic characteristics of a Korean traditional house, it was not easy to actually capture the compositional and/or constructional knowledge of the building even though it is a wooden building with many wooden members showing their compositional relations. Now with the help of the BIM tool, the Building Information Modeling tool, we could actually be able to compare and analyze each member and their compositional relations. In this paper we examine the unique traditional composition method used in extending the building’s structural sections utilizing the bended-joint characteristics of traditional buildings with exemplar case of the Yoon Jeung residence. Thereby we examine those relationships among three major compositional parts namely the plan based spatial compositions, the upper wooden compositions and the roof forms so as to specify the building’s typical characteristics with reasonably acceptable causes. The inner and outer block of the residence are handled with their bended-joints with more detailed knowledge of categorization by way of joint relationships among members.

건축설계지식을 이용한 도면의 설계개념 해석

박수훈(Soo-Hoon Park) (사)한국CDE학회 2005 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2005 No.1

BIM에 기반한 한국전통건축 원형의 곡형부재 응용

박수훈(Soo-Hoon Park) (사)한국CDE학회 2012 한국CDE학회 논문집 Vol.17 No.6

This paper starts with an approach to Korean traditional building design using BIM tool as a design methodology where Korean traditional buildings show some difference rather as weaknesses in handling curves and curved members and the construction. BIM design tools, that are adequate in treating modern architectural design vocabularies, show some disadvantages not having necessary elements and components as building libraries. In this paper we build our own libraries adequate to the proper assembling way of Korean traditional buildings. In contrast to the diverse use of straight building members, Korean traditional buildings show rare use of curves and/or curved members in their assemblage. Moreover, in the case of a circular plan, mostly a circle is interpreted in terms of polygons such as square, hexagon or octagon. In this paper, we examine Gwanram-Jung in Changduk Palace, which is probably the only example in Korea showing a use of curves and/or curved members in assemblage. We try to interpret the case as an incomplete prototype and apply in a modern way to complete a circular plan in terms of circular arcade.

입도에 따른 Flake Sendust 전파 흡수체의 특성 분석

박수훈(Soo Hoon Park),김동일(Dong Il Kim),최동한(Dong Han Choi),김성연(Seong Yeon Kim) 한국전자파학회 2008 한국전자파학회논문지 Vol.19 No.9

본 논문에서는 연자성 금속 분말인 sendust를 flake화 과정을 통하여 형상과 입도를 변화시켜 전파 흡수체를 제작하고, 그 특성을 분석하였다. 먼저 attrition milling에 의해 입도를 달리한 세 종류의 flake sendust 분말과 지지재인 CPE(Chlorinated Polyethylene)를 이용하여 전파 흡수체를 제작하고, 이 전파 흡수체로부터 재료 정수를 계산하여 입도에 따른 변화를 조사한 후 전파 흡수능을 측정하여 비교ㆍ분석하였다. 그 결과 평균 입도가 140 ㎛ 인 flake sendust 분말로 제작된 전파 흡수체가 와전류 손실의 감소(복소비 투자율 증가)와 입자간의 정전 용량의 증가(복소비 유전율 증가)에 기인하여 고주파 대역에서 우수한 전파 흡수능을 보임을 확인하였다. In this paper, we analyzed the characteristics of the EM wave absorber which was fabricated by using Flake Sendust (soft metal magnetic powder). The Flake Sendust was made of 3 different granularity by attrition mill. First, we have fabricated 3 kind of EM wave absorbers using the Flake Sendust and CPE(Chlorinated Polyethylene) and measured the S-parameters of the EM wave absorber. The complex relative permittivity and permeability were calculated from the measured data and the variations according to a change of granularity were researched. As a result, it was confirmed that the EM wave absorber using flake Sendust with the 140 ㎛ average granularity has outstanding absorption ability in high frequency range(C band) for the reduction of eddy current loss(increase of permeability) and the increase of space charge polarization(increase of permittivity).

한옥의 에너지성능 분석에 따른 알고리즈믹 설계변형

박수훈(Soo-Hoon Park) (사)한국CDE학회 2013 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2013 No.1

The main purpose of this paper is to suggest and validate a design process called FBS model of design process by Gero so that it proves to be working in a rather complicated tasks such as producing design variations based upon and in the feedback of building energy performance calculations. A neo-hanok design called ShiSeup-Dang (SSD) is chosen as the design prototype to be transformed and the structural design variables are described using a BIM tool called Revit Architecture. Starting from this prototype model, we convert this to energy performance analysis tools such as DIVA for Rhino and Ecotect so as to derive design Behavior variables in terms of solar access energy performance of the SSD. These derived design variables and values work as feedbacks for the design transformation using algorithmic modeling tools such as Grasshopper in Rhino3D. The result shows several cases of design transformations and variations in the sense that it improves the building energy performance through the design refinement methods adapted in this paper.