도시공원의 이용후 평가에 기초한 공원의 개발지표 설정 : 부산광역시 암남공원을 사례로 Case Study of Amnam Park in Busan City

박승범,김승환,남정칠,강영조,이기철,김석규 동아대학교 환경문제연구소 1999 硏究報告 Vol.22 No.2

The purpose of this study is to investigate the prime factors that affect to user postoccupancy evaluation of activities and facilities in urban parks, to classify those factors, to find out factors about them, and then to suggest important indicators in the urban park planning, design, and development. The survey research was done using the self-administered questionnaire method by 435 peoples in the Busan City who participated in recreational activities in the Amnam Park. The Analysis of the data primarily consists of two phase: The first analysis was dealt an exploratory factor analysis which identified major factors involved in user postoccupancy evaluation with reacreational activities and facilities in Amnam Park by the SPSS(Ver.6.0) program and the second analysis was used to investigate the factors affected to user postoccupancy evaluation in the urban park by the Regression Analysis. According to the factor analysis, user postoccupancy evaluation of facilities in urban parks concerning the 20 variables, 5 prime factors by the staistical values were considered. The factor analysis showed that user postoccupancy evaluation of activities in urban parks concerning the 11 variables, 3 prime factors by the staistical values were analysed. Postoccupancy evaluation in the urban park by the Regression Analysis suggested that the two varlables as 'the directions of park development' and 'companies with the personal specific characteristics' are significant in addition to the some variables presented in user postoccupancy evaluation with reacreational activities and facilities in Amnam Park by the factor analysis. Furthomore the analysis models were identified as having significant effects on the factor and regression analysis. Overall fits of both models were very good. These significant relationships indicate important factors and variables that should be considered in planning, design, and development of the urban parks. Therefore, development direction of the h a m park has to be analyzed as significant factors concerning user postoccupancy evaluation in a systematic way, recognized as important variables for planning process. The urban park has to be fully designed and established in the planning process not by the decision-maker's subjective evaluation but by user postoccupancy evaluation.

파트너십에 의한 지하철 입구 공간의 쌈지공원 설계 및 시공

김승환,강현우,손용욱,박승범,남정칠,이기철,차민준 東亞大學校 建設技術硏究所 2009 硏究論文集 Vol.32 No.2

A pocket park is valued in securing green space in downtown and improving urban view in the aspect of natural and environmental values, and it signifies a lot as the center of local residents’ community and harmony as well. Since subway exits and surroundings that have high portions in taking up street space due to lack of green space in downtown aren't made full use of, valuable pocket park place. Dangni Pocket Park of subway exits is a park completed with cooperative works and partnership by students, specialists, administrative organizations, businesses and civilian organizations, etc. without support of special budget. The study site was finally chosen to the space between exit No.1 of Dangni subway station, after analyzing the surrounding circumstances, availability and accessibility of the space among the several subway station exits of Saha, Dangni, and Hadan Station in Busan Metropolitan city. For the designing process, The Citizens organization for Million Amenity Park performed the planning and project proceeding, and 19 design drafts were proposed during the class of landscape architecture in Dong-a University. Design review panel members discussed to select the best draft in practical and authentical, and the related experts reviewed and revised to present the final design plan. The construction was conducted was performed under the cooperation between the civil, authorities, and industrial organizations, among which Saha District office managed for the waste treatment and maintenance matters. The graduates of landscape architecture department of Dong-a University and related industrial enterprises supplied landscape materials and related labors, were supported by 20 members of GPM, one of clubs of Dong-a University volunteered durig the most of construction progress, completing the Pocket Park of subway exits through partnership.

국립공원 3개 저수지에 서식하는 생태계교란 어종의 서식양상과 먹이생물, 어류상에 미치는 영향

박승철 ( Seung-chul Park ),이광열 ( Kwang Yeol Lee ),최광식 ( Kwang-seek Choi ),한미숙 ( Mee-sook Han ),고명훈 ( Myeong-hun Ko ) 한국어류학회 2021 韓國魚類學會誌 Vol.33 No.2

본 연구는 국립공원 내 생태계교란 어종 배스와 블루길의 도입에 따른 영향을 파악하기 위해 2020년 금계지, 삼가지, 내장지에서 조사를 실시하였다. 금계지에서는 7과 11종 1,221개체가 채집되었고, 배스는 우점종 (96.3%), 블루길은 소수 (0.3%) 서식하고 있었고, 배스는 주로 밀어 (IRI, 37.2%)와 잠자리목(25.6%), 뱀잠자리목 (11.6%), 배스 (7.0%) 등을 섭식하였다. 삼가지에서는 5과 10종 854개체가 채집되었고, 배스는 우점종(60.8%)으로 주로 새우류 (33.6%)와 잠자리목 (34.4%), 밀어(21.2%), 피라미 (6.1%) 등을 섭식하였다. 내장지에서는 7과 13종 1,075개체가 채집되었고, 블루길은 우점종 (38.1%), 배스는 우세종 (9.5%)으로 나타났으며, 블루길은 주로 물벼룩류 (IRI, 77.5%)와 파리목 (9.8%), 새우류 (4.0%) 등을 섭식하였고 배스는 주로 밀어 (73.3%)와 새우류 (21.2%) 등을 섭식하였다. 금계지와 삼가지의 배스는 10여 년 전에 도입된 것으로 추정되고, 도입 이후 대부분의 어류는 개체수가 급격히 감소하였다. 내장지의 블루길은 20여 년 전에 도입된 것으로 추정되며, 도입 이후 상대풍부도가 점점 증가하여 40%대에 도달하였고, 배스는 5~6년 전에 도입되었고 도입 이후 자생 어류의 종수와 개체수가 급격히 감소하였다. 마지막으로 국립공원 내 배스와 블루길의 서식현황 및 관리방안에 대해서 논의하였다. This study was conducted to elucidate the impact of invasive species, Micropterus salmoides and Lepomis macrochirus in Geumgyeji, Samgaji and Naejangji reservoirs of National Parks, Korea in 2020. In the Geumgyeji, 1,221 individuals of 11 species in 7 families were collected including M. salmoides (relative abundance, 96.3%) and L. macrochirus (0.3%), M. salmoides fed mainly on Rhinogobius brunneus (IRI, 37.2%), Odonata (25.6%), Megaloptera (11.6%), and M. salmoides (7.0%). In the results of Samgaji showed that 854 individuals of 10 species in 5 families were collected including M. salmoides (60.8%), and M. salmoides fed mainly on Decapoda (shrimp, 33.6%), Odonata (34.4%), R. brunneus (21.2%), and Zacco platypus (6.1%). In the Naejangji showed that 1,075 individuals of 13 species belonging to 7 families were collected including L. macrochirus (38.1%) and M. salmoides (9.5%), and L. macrochirus fed mainly on Branchiopoda (77.5%), Diptera (9.8%), Decapoda (4.0%) and M. salmoides fed mainly on R. brunneus (73.3%), Decapoda (21.2%). M. salmoides of Geumgyeji and Samgaji were apparently introduced more than a 10 years ago. The fish population declined rapidly since the introduction of M. salmoides. L. macrochirus of Naejangji was introduced more than 20 years ago, which increased its relative abundance to 40%. M. salmoides was introduced five to six years ago, and the fish species and population declined rapidly since the introduction of M. salmoides. Finally, we discussed the inhabitat status and management of M. salmoides and L. macrochirus in the National Park.

Development of a Mobile Application, "Wild Flowers of Bukhansan National Park (version 1.0)", for Identification of Plants in Bukhansan National Park

Kim, Sang-Tae,Lee, Seung-Yeon,Kim, Seung-Chul,Byun, Hye-Won,Lee, Sang-Tae,Kim, Mu-Yeal,Hong, Seok-Pyo,Chung, Young-Jae,Park, Ki-Ryong,Lee, Chung-Hee,Lee, Joong-Ku,Heo, Kyeong-In,Lee, Ji-Ye,Lee, Eun-Je National Science Museum of Korea 2011 Journal of Korean nature Vol.4 No.3

We developed the educational purpose mobile application, named "Wild Flowers of Bukhansan National Park (version 1.0)", aiming for easy identification of wild flowers for students and visitors in the park. When visitors find a flower or part of plant in the park, visitors can search for its name utilizing the pictures and characters provided in their own smartphone mobile devices or tablet PCs. The application provides pictures of wild flowers in the park and character-based searching system based on 12 diagnostic features (e.g., growth form, leaf arrangement, flower symmetry, petal color, petal number, sepal number, etc). We adopted the complete floristic survey of Chung and Lee (1962) and added species that we confirmed their distribution in the park during the development of this application. In summary, number of vascular plants in this park was estimated to be 428 taxa including 100 families, 280 genera, 327 species, 1 subspecies, 50 varieties, and 5 formas. We provided a total of 588 pictures representing 358 taxa and each taxon includes multiple pictures in many cases. Included identification quizzes can be an efficient educational tool as well as fun activity for students and visitors who are learning plant species in Korea. Our next step will include GPS function in the application for indicating visitor's location and for providing previously reported sites of the species that we interested in the map of the park. The future application which includes GPS function will be a valuable tool for the monitoring of rare plants, plant researches related to the climate changes, etc. We currently provide Korean iPhone version only, and English version and both of android versions will be serviced soon.

한국 국립공원 산림생태계의 수목 탄소저장량 평가

이상진,박홍철,박관수,김현숙,이창민,김진원,심규원,최승운,Lee, Sang-Jin,Park, Hong-Chul,Park, Gwan-Soo,Kim, Hyoun-Sook,Lee, Chang-Min,Kim, Jin-Won,Sim, Gyu-Won,Choi, Seung-Woon 한국환경복원기술학회 2022 한국환경복원기술학회지 Vol.25 No.3

The purpose of this study is to quantitatively evaluate the amount of carbon storage for trees in forest ecosystem to support the foundation for carbon neutrality implementation in Korea National Park. It targeted 22 national parks designated and managed as national parks in Korea, and conducted research on forest trees in the terrestrial ecosystem among various natural and ecological carbon sink. The survey and analysis method followed the IPCC guidelines and the National Greenhouse Gas Inventory in Korea. The amount of tree carbon storage in the forest ecosystem of Korea National Park was confirmed to be about 218,505 thousand CO₂-ton and the amount of carbon storage per unit area was 570.8 CO₂-ton per hectare. Compared to 299.7 CO₂-ton per hectare, the average carbon storage per unit area of the entire Korean forest, it was found that about twice as much carbon was stored when assuming the same area. In other words, it means that the tree carbon storage function of the national park is about twice as high as that of the average tree carbon storage function of entire Korean forest. It has great implications in Korea National Park not only provides biodiversity promotion and exploration services as a national protected area, but also performs excellent functions as a carbon sink.

광대역 접속망에서 멀티미디어 응용의 동적 QoS 지원

박승철 한국기술교육대학교 2006 論文集 Vol.13 No.1

Recently various multimedia applications based on H.323, SIP, and RTSP, for examples, have been emerged, and they require different QoS(Quality of Service)s according to the dynamically established sessions. Effective support of dynamic QoS for multimedia applications in the access networks is very important because it can help to utilize the bottlenecked resources of the access networks more efficiently. Multimedia applications can be serviced in the P2P(Peer to Peer) environment as well as in the ASP(Application Service Provider) environment, and their dynamic QoS requirements need to be properly supported in accordance with the service environments. In this paper, we propose several dynamic QoS support solutions for multimedia applications in the DiffServ-enabled broadband access networks. They are Direct DiffServ, Admission-based direct DiffServ, Indirect DiffServ, and Hybrid DiffServ solutions. We will also discuss how each solution can be appropriately applied to the corresponding service and network environments.

上水處理에서 HCO₃濃度가 凝集效果에 미치는 影響에 關하여

朴永圭,李哲熙,曺秉樂,朴勝吉 嶺南大學校 環境問題硏究所 1982 環境硏究 Vol.2 No.1

In this paper is presented the effect of ?? concentration on the efficiency of the turbidity removal by flocculation with alum or ferric sulfate. It is confirmed that pH range of the optimal flocculation conditions for the raw water contained the initial ?? concentration of 80mg/1 is expanded to 5-8 or 4-6, res-pectively, by treating with alum and ferric sulfate as a coagulants. The residual turbidity treated water is also decreased to 2NTU with alum and to 4NUT for the case of ferric sulfate. The determined agglomeration rate constant, K₁, and erosion rate constant, K₂, for floc are as follows; coagulants agglomeration rate constant erosion rate constant (initial ?? conc.) K₁ K₂ alum(80mg/1) 0.29 0.3 ferric sulfate(40mg/1) 0.35 0.26 Here is discussed the number of the reactor for the continuous flow needed to treating below 5NTU and also discussed treated watar quality which is predicted from kinetic model by using agglomeration rate constant, K₁, and erosion rate constant, k₂.

원격 서버관리를 위한 입력정보 처리에 관한 연구

박경배,이승철 중앙대학교 기술과학연구소 2000 기술과학연구소 논문집 Vol.30 No.-

본 논문에서는 원격 서버관리를 위한 지식기반 시스템을 구축하고 지식기반 시스템으로의 실시간 입력정보 처리에 관한 연구를 수행하였으며 그 응용으로서 지식기반 시스템을 이용한 원격 서버의 웹 traffic 분석 사례를 보였다. 예에서는 원격 서버에 요청되는 client의 서비스 요청율과 그에 대한 원격서버의 서비스 time 등을 지식기반 시스템이 내재된 supervisor computer로 전송하고 지식기반 시스템이 이를 입력정보로 원격 서버의 traffic 상황을 진단하는 방법을 취했다. 이에 수반되는 주요 연구내용으로 서버 시스템 관리, 지식기반 시스템, traffic 모델, UNIX 네트워크 프로그래밍 및 TCP/IP datagram 구조 등을 포함한다. 본 논문에서는 GNU/Linux 기반에서 지식기반 시스템을 개발하였고, 전문가 시스템 개발 tool인 CLIP[10][11][12]를 사용하였으며 tcpdump[13]를 이용하여 원격 서버의 웹 traffic 데이터를 수집하였다. traffic 데이터의 분석과 데이터 전송에 이용된 프로그램은 자체 개발한 프로그램을 사용하였다. In this study, the real time information processing technique for the input of a knowledge-based system for a remote server is investigated. Web traffic analysis for the remote server is also performed. The knowledge-based system resides in the supervisor computer. For the Web traffic analysis, the service request rate and the service time of the remote server are transferred to the supervisor computer. These informations are supplied to the knowledge-based system. The knowledge-based system analyzes these data and diagnoses the traffic states of the remote server. In implementation, service request rate of the clients required for remote server and service time of remote server are transferred to a knowledge-based system loaded in supervisor computer. Using these data a knowledge-based system diagnoses Web traffic states of remote server. The knowledge-based system is developed using CLIPS in the GNU/Linux. The CLIPS is an expert system development tool. The traffic data are collected using tcpdump in the remote server. Further research is needed in the analysis and modelling of the service patterns and rates.

병원과 지역사회에서 메티실린 내성 황색 포도상구균(methicillin-resistant Staphylococcus aureus) 감염의 임상 분자역학 연구

박정원,이종섭,송준영,김철현,엄중식,정희진,김우주,박승철 대한화학요법학회 2002 대한화학요법학회지 Vol.20 No.2

목적 : 국내에서 1990년대 이후 중요한 병원균으로 대두되고 있는 methicillin-resistant S. ureus(MRSA)는 주로 입원환자에서만 분리되는 것으로 알려져 있으나, 최근들어 지역사회에서도 퍼져있는 것으로 알려지기 시작하였다. 이에 병원획득 및 지역사회획득 MRSA의 임상역학 및 분자역학적 연구를 통하여 획득요인, 병원과 지역사회 획득 균주간의 교류 양상등을 규명하고자 하였다. 방법 : 1998년 1월부터 12월까지 고려대 부속 구로병원에서 임상검체로부터 분리된 S. aureus 균주중에서 MRSA 균주의 빈도를 구하였고, 이중 1998년 10월 1개월 동안 분리되었던 42균주에 대하여 지역사회획득 균주와 병원획득 균주로 나누고, 임상역학적 조사를 하였다. 지역사회 획득 18주와 병원획득 22주에 대하여 PCR 방법으로 mecA 유전자를 확인하였고, PFGE를 시행하여 균주의 클론형(clonal type)을 결정하고 이 결과에 준하여 덴드로그램 분석을 시행하여 분자적 친밀도를 결정하였다. 결과 : 1998년 1년간 분리된 총 1,587주의 S. aeureus 균주중 73.8%(1,163주)가 MRSA 였다. 1998년 10월 1개월 동안 임상자료의 고찰이 가능하였던 MRSA 감염환자 42명 중 20명이 지역사회획득 환자였고, 병원획득 환자가 지역사회획득 환자보다 항생제사용 과거력(17 vs 5, p=0.001), 기저질환의 존재(18 vs 8, p=0.002) 등이 통계적으로 의미있게 높았다. 지역사회획득환자가 이루(7/20[35.0%] vs 2/22[9.1%] ; p=0.041)와 밀접한 관계가 있음도 확인하였다. 분자생물학적연구가 진행된 40주의 MRSA 균주는 모두 mecA 유전자 양성이었고, 18주의 지역사회획득 균주에서 총 8가지의 PFGE 클론형이 존재하였으며 A형이 가장 많았다(7/18, 38.8%). 22주의 병원획득균주에서는 6가지의 클론형이 존재하고 A형이 가장 많았으며(15/22, 68%), 15주의 지역사회획득 균주(83.3%)가 21주의 병원획득균주와 공통적인 클론형을 공유하고 있었다. 결론 : 지역사회 획득 MRSA는 주로 이루나 창상부위에서 많이 분리되는 반면 병원획득 MRSA는 객담에서 많이 분리되고 또한 당뇨병을 가진 환자에서 감염을 잘 일으키는 것으로 밝혀졌다. PFGE 분석 결과 원내감염은 단일균주에 의한 유행양상을 보였고, 지역사회에서도 같은 형의 균주에 의한 감염빈도가 가장 높음을 보여 MRSA 균주가 지역사회로 유입되어 지역사회내 MRSA 감염의 발생에 기여했을 것으로 사료된다. Background : Until recently, methicillin-resistant Staphylococcus aureus (MRSA) infection has been acquired primarily in hospital settings. During the late 1990s, the incidence of community-acquired MRSA infections has been increased in this university hospital. This retrospective study evaluated the clinical features and risk factors for community-acquired MRSA infection compared with hospital-acquired MRSA infection; and molecular relatedness of MRSA strains determined by pulsed-field gel electrophoresis(PFGE). Method: MRSA isolates collected from patients during October of 1998 were classified as community-acquired("community') or hospital-acquired("hospital") cases. MRSA infections were defined as hospital-acquired if organisms were isolated > 48 hours after admission to the hospital or isolated from patients with a history of admission to a hospital within the last 3 months. A comparative analysis of risk factors for community MRSA compared with hospital MRSA was performed. mecA gene PCR and PFGE of MRSA isolated was used as a tool of strain identification and molecular typing. Result : During one month, there were 42 patients with MRSA infection or colonization. Of 42 patients with MRSA isolates, 22(52%) were hospital cases and 20(48%) were community cases. Previous exposure to antibiotics(17 vs 5, p = 0.001) and presence of underlying diseases (18 vs 8, p = 0.002) were more common in hospital cases than in community cases. MRSA were more frequently isolated in otorrhea specimens from patients with otitis media in community cases compared with hospital cases. Of the 40 MRSA isolates subjected for PFGE typing, 18 were community isolates and 22 were hospital isolates. There were 8 distinct PFGE types among the 18 community isolates and type A was the most common clonal type (7/18, 38.8%). 22 hospital isolates were of 6 distinct PFGE types, and type A was dominant clonal type (15/22, 68%). PGFE subtyping indicated that 15(83.3%) of 18 community MRSA strains were clonally related with that of 21 hospital MRSA strains. Conclusion : Our results suggest that hospital MRSA strains may have disseminated in the community setting. PFGE subtyping support the finding that MRSA is circulating beyond nosocomial settings in the regional community.

한계 입력 내에서 단축 경로를 갖는 로봇 매니퓰레이터의 퍼지 강인 제어기의 설계

박재형,김승철,최부귀 東亞大學校 附設 情報通信硏究所 1999 情報通信硏究所論文誌 Vol.7 No.1

불확실한 모델과 외란을 가진 로봇 매니퓰레이터를 제어하기 위해, 비선형 강인 제어기가 적합하다. 본 논문에서는 불확실한 로못 매니퓰레이터의 제어에 강인 제어기를 적용할 때 발생하는 입력 토크의 포화를 해결하기 위한 알고리즘을 제안한다. 이 알고리즘은 퍼지 논리를 이용하여 초기의 경로를 바탕으로 새로 생성된 단축 경로를 생성하는 것이다. Robot manipulators are operated under model uncertaily, and their dynamics are highly nonlinear. To control them, nonlinear robust controllers are appropriate, but they need high torques so that actuators such as acuating motors can face torque saturation. In this paper, a new scheme is presented to achieve fast tracking in the presence of torque saturation. The scheme generates a new reduced path based onthe initial desired path using a fuzzy logic. Numerical examples are shown to validate the proposed controller using an uncertain two degree-of-freedom underwater robot manipulator.