소셜 빅데이터를 활용한 도시공원 인식 비교 분석 연구: 양재시민의숲과 서서울호수공원을 대상으로

박상훈(Park, Sang-Hun),안영아(An, Young-A) 한국도시행정학회 2021 도시 행정 학보 Vol.34 No.4

In this study, two parks located in similar residential areas were selected as case subjects for the analysis of social big data analysis occurring online. For this purpose, the applicability of social network analysis is to be checked as a method of analyzing the perception of urban parks and identifying differences in characteristics and use of individual parks. The analysis is based on big data, and as the core of the study is keyword analysis, a part of the ‘emotional information analysis method’ registered by the author in the patent was used. As a result of the analysis, it is judged that Yangjae Citizens Forest and West Seoul Lake Park are being used as walking spaces where you can experience and feel the seasons. West Seoul Lake Park mainly uses the parks facilities and park contents on a family basis. On the other hand, Yangjae Citizens Forest is interpreted as showing a relatively wide range of use for not only family but also friends, and it is used in connection with the surrounding environment such as Yangjaecheon Stream, Dullegil, and restaurants in addition to park facilities. These research results suggest that it is necessary to develop and operate programs in consideration of the characteristics and hours of use of park users in the operation and management of urban parks.

TCD를 이용한 두개강내 동맥류의 예후 예측 가능한 New Scale(NS) Score System

박상훈,박종운,박현선,현동근,하영수,Park, Sang Hoon,Park, Chong Oon,Park, Hyeon Seon,Hyun, Dong Keun,Ha, Young Soo 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.8

Objective : By conducing a review of clinical outcomes for patients with aneurysm treated using current microneurosurgical techniques and intensive care unit management, we speculated that grading systems based only on clinical condition or CT finding after admission failed to provide a significant stratification of outcome between individual grades of patients, because these systems did not include the factor for postoperative vasospasm. We hypothesized that postoperative blood flow velocity could have a significant impact on outcome prediction for patients surgically treated for intracranial aneurysms. Methods : We conducted a analysis on patient- and lesion-specific factors that might have been associated with outcome in a series of 55 aneurysm operations performed with measurements of blood-flow velocity with transcranial Doppler ultrasonography(TCD). In the new scale(NS) score system, 1 point is assigned additionally for the case with Hunt and Hess(H-H)/World Federation of Neurological Surgeons(WFNS) Grade IV or V, Fisher Scale(FS) score 3 or 4, aneurysm size greater than 10mm, patient age older than 60 years, blood-flow velocity higher than 120cm/sec, and posterior circulation lesion. By adding the total points, a 6-point scale score(score 0-6) is obtained. Results : Age of patient, size of aneurysm, clinical condition(H-H grade and WFNS), FS score, and blood flow velocity(TCD 1day after operation) were independently and strongly associated with long-term outcome. When NS scores were applied to 55 patients with at least 6 months follow-up, the correlation of individual scores with outcome was strongly validated the retrospective findings. Conclusion : It was speculated that TCD could be used to assess postoperative vasospasm and to monitor noninvasively the patients with aneurysmal SAH. This NS score system is easy to apply, divide patients into groups with different outcome, and is comprehensive, allowing for more accurate prediction of surgical outcome.

펠티어 냉난방시스템 최적화 기술에 관한 연구

박상훈,정수진,박영우,박유경,송범중,Park, Sanghoon,Jeong, Soojin,Park, Youngwoo,Park, Ukyung,Song, Beomjung 한국교통대학교 융복합기술연구소 2013 융ㆍ복합기술연구소 논문집 Vol.3 No.1

This study is concerned with air-conditioning system in use of thermoelectric device. It is introduced that the well designed structures for better cooling & heating performance with high efficiency. And also it is performed that the system performance test of four types trial products for the use of hybrid commercial vehicle. System performance is affected by many component parts, especially heat sink design & power control method. It is applied that dual extrusive fin tube with buffer zone for the effective radiating of circulating liquid in tube. And also it is applied that power supply method with constant-current system. It is attained that system cooling capacity is 1.2kW, COP is 0.95.

중소기업 기술보호지원제도에 대한 이용자와 정책담당자의 인식차이 분석

박상훈,조남욱,Park, Sanghoon,Cho, Namwook 디지털산업정보학회 2017 디지털산업정보학회논문지 Vol.13 No.1

As the risk of technical leakage is increasing, technology protection support systems for small and medium-sized businesses have gained attention. This paper analyzed the perception gap of the user and policy-maker regarding technology protection support systems. First, to identify key elements of technology protection support systems and construct measurement factors, interviews with experts are conducted. Then, surveys are conducted to analyze the perception differences between the users and policy-makers. Factor analysis and ANOVA have been utilized to analyze survey results. The result shows that the perception gaps exist in the following areas: management system, cost reduction, copyright protection, customer satisfaction, leakage prevention, and awareness. To enhance the effectiveness of technology protection support systems, this paper suggests technology protection support systems should be customized in terms of the company's size and type of busines.

주거건물의 냉방 부하 패턴에 따른 구체축열시스템 운전 방안

박상훈,여명석,유미혜,이유지,정웅준,김광우,Park, Sang-Hoon,Yeo, Myoung-Souk,Yoo, Mi-Hye,Lee, Yu-Ji,Chung, Woong-June,Kim, Kwang-Woo 한국주거학회 2012 한국주거학회 논문집 Vol.23 No.2

Compared to Packaged Terminal Air Conditioning Systems, Radiant Cooling Systems have the advantage of energy saving and thermal comfort. Thermally Activated Building System (TABS) is one of the radiant heating and cooling systems. The main difference between TABS and other radiant systems lies in the usage of the time-lag effect of storing heat energy in the concrete. Current energy usage in summer time is concentrated within a specific time by using Packaged Terminal Air-Conditioner (PTAC). Due to the time-lag effect of TABS, energy usage can be distributed to other time zones. To maximize this effect, it is important to determine the appropriate operating mode, which for TABS is dependent upon the cooling load generated by the occupancy schedule. In this study, occupancy schedules are determined for various residential types. The operating modes of TABS for these residential types are estimated by using a dynamic computational simulation method. The results indicate that the operating modes of TABS can be determined by residential type and occupancy schedule. The load handled ratio by TABS is set up differently according to the cooling load profile obtained from residential type and occupancy schedule. By using TABS, energy consumption could be reduced by 20% compared to PTAC.

최소 제곱 무요소법을 이용한 적응 기법에 관한 연구

박상훈,권기찬,윤성기,Park, Sang-Hun,Gwon, Gi-Chan,Yun, Seong-Gi 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.9

An h-adaptive scheme of first-order least-squares meshfree method is presented. A posteriori error estimates, which can be readily computed from the residual, are also presented. For elliptic problem the error indicators are further improved by applying the Aubin-Nitsche method. In the proposed refinement scheme, Voronoi cells are utilized to insert nodes at appropriate positions. Through numerical examples, it is demonstrated that the error indicators reveal good correlations with the actual errors and the adaptive first-order least-squares meshfree method is effectively applied to the localized problems such as the shock formation in fluid dynamics.

국내 대형복합재난의 재난대응체계 개선방향

박상훈,Park, Sang-Hun 한국건설관리학회 2018 건설관리 : 한국건설관리학회 학회지 Vol.19 No.1

음대수 함수를 이용한 회전체를 위한 곡면 설계 도구의 구현

박상훈,임인성,Park, Sanghun,Ihm, Insung 한국컴퓨터그래픽스학회 1996 컴퓨터그래픽스학회논문지 Vol.2 No.1

Many efforts for finding smooth curves and surfaces satisfying given constraints have been made, and interpolation and approximation theories with the help of computers have played an important role in this endeavour. Most research in curve and surface modeling has been largely dominated by the theory of parametric representations. While they have been successfully used in representing physical objects, parametric surfaces are confronted with some problems when objects are represented and manipulated in geometric modeling systems. In recent year, increasing attention has been paid to implicit algebraic surfaces since they are often more effective than parametric surfaces are. In this paper, we summarize the geometric properties and computational processes of objects represented using implicit algebraic functions and explain of the implementation of design tools which can design curves and surfaces of revolution. These surfaces of revolution are played an importance role in effective areas such as CAD and CAM.

중소기업 맞춤형 기술보호 수준평가 모델 연구

박상훈,조남욱,Park, Sanghoon,Cho, Namwook 디지털산업정보학회 2017 디지털산업정보학회논문지 Vol.13 No.2

In today's highly competitive environment, the importance of technology protection cannot be overemphasized. To evaluate technology protection competency of Small and Medium-sized Enterprises(SMEs), Government has conducted surveys every year but its effectiveness is still in question. To enhance the effectiveness of technology protection for SMEs, a customized evaluation model of technology protection competency has been suggested in this study. Surveys are conducted to measure the relative importance of evaluation areas that can be influenced by the size and type of business. The analysis shows that there exists significant differences between evaluation areas. This study suggests that the effectiveness of technology protection can be enhanced by utilizing a customized evaluation model depending on the size and type of business. Also, the proposed model can be used for SMEs to identify and enhance their weakness in technology protection. Overall, it is expected that the proposed model can be effectively used to protect valuable technologies in various SMEs.

창호 일체형 환기 시스템의 환기 성능 평가 방법 연구

박상훈,Sanghoon Park 인천대학교 도시과학연구원 2024 도시과학 Vol.13 No.1

This study is a preliminary study to establish the criteria for evaluating the performance of the window-integrated ventilation system. This study analyzed various references that can evaluate the performance of the ventilation system and established the evaluation method. In addition, the performance evaluation method was quantitatively evaluated by conducting a pilot experiment to verify and supplement the performance evaluation method of the ventilation system. The performance of the ventilation system was categorized into ventilation, air quality, airtightness, noise, visibility and view according to the evaluation category. In particular, according to the ventilation and air quality evaluation, it was found that the indoor carbon dioxide concentration can be reduced by about 14 % when the window-integrated ventilation system is applied. The ventilation performance evaluation method and experimental data of this study will serve as basic data for subsequent studies to establish comprehensive performance evaluation criteria for similar ventilation systems.