동북아 피더네트워크의 Win-win전략에 관한 연구

장우준(Woo-jun jang),전찬용(Chan-Yong jeon),김태원(Tae-Won Kim),곽규석(Kyu-Seok Kwak),남기찬(Ki-Chan Nam) 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.3 No.1

최근 중국은 양산항을 개장하여 선사 유치를 위한 다양한 혜택을 제공하고, 일본은 "수퍼중추항만 육성계획“을 세워 항만의 효율성을 바탕으로 비용을 낮추려는 노력을 하고 있다. 또한 선박의 대형화에 의한 중심항만(Hub Port) 위주의 기항과 북중국의 대량 물량 발생지역에 대한 직기항 경향으로 동북아 항만간의 경쟁이 더욱더 치열해 지고 있으며 동북아 역내 피더네트워크 강화의 필요성이 제기되고 있다. 따라서, 본 연구에서는 유럽 피더네트워크 전략 사례를 바탕으로 동북아 피더시장 현황을 파악하고 동북아 피더네트워크 구조를 분석함으로써 동북아 역내 항만 및 선사간의 과당경쟁을 지양하고 서로 Win-Win할 수 있는 터미널의 전략적 활용, 선사간 제휴 확대, 항만간 협력 강화를 위한 구체적인 전략을 제시하였다. Recently, China opened Yangshan port and provides a variety of benefits for shipping companies. Japan plans to reduce logistics costs and improve efficiency through the established "super major ports" project. According to the "hub and spokes" system, the number of direct calls toward North-Chinese ports are increasing. This changing environment has negative effects on the amount of transshipment cargos in Korean ports. In order to make a hub port of a domestic port, it is necessary to develop northeast Asian feeder networks. Therefore, this paper analyzes the structure of northeast Asian feeder networks through the case study of European feeder networks strategy. Finally, we suggests the plans to reinforce feeder networks, which are strategic terminal operation, strategic alliances between shipping companies and port co-operation, for win-win strategy in the competitive northeast Asian market.

분류식 하수관거의 도시하수발생 및 하수수질에 관한 연구

원찬희,김종진 全北大學校 附設 都市및環境硏究所 1998 都市 및 環境硏究 Vol.13 No.1

This study was performed in order to estimate the domestic sewage quantities-qualities from separate sewer in Chonju. To investigate the domestic sewage quantities-qualities from separate sewer, sample were collected 2 times during this study period at thirteen points. Flow rate analysis demonstrates a major morning and evening peak between 07:00∼09:00 and 19:00∼22:00, respectively. The concentrations of BOD were in the range of 20∼150㎎/ℓ and 20∼112㎎/ℓ, respectively. The highest concentrations of BOD occurred in the point 5 at first survey. The concentrations of suspended solids were in the range of 18∼330㎎/ℓ and 13∼85㎎/ℓ, respectively. The pollution loading runoff after a rainy season decreased compared to that made before the rainy season. Comparisions with data for sewage plant influents show lower than expected inputs, from domestic sources, of many dilute water often regarded as having a mainly groundwater origin.

동진강 유역의 농업활동에 의한 수질변화와 실측부하량

원찬희,정팔진,김민정,현미희,박정훈,송재환 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2002 工學硏究 Vol.33 No.-

The entire duration of the research work was from December-2000 to July-2002. Site measurement were conducted during various season, in a dry season(December), in rainfall, in seed-sowing time and also collecting data from the rural public organizations related to water management was done and examined during the mid of research work. Generally, the Dong Jin River watershed contains small three Creeks, KoBu, DongJin(including JeongEup and ChilBo, WonPyong). It was further divided into 32 sub-watersheds which comprises of further 5, 18, 9 watersheds in the creeks respectively. Inflow loading to the river was calculated from measurement of general water quality and quantity and these field surveys were made thrice times in agricultural drainage channels, where fertilizers and pesticides leaching from the surface have an direct effect for the deterioration of the several creek and river. Estimation of contaminant loading has been done by using unit loading based on the notification No. 1999 - 143 of the Ministry of Environment. Most of estimated loading data reported during the research work were slightly higher when compared with the notification of the Ministry but they do not have any significant effect. It was assumed that sub-watersheds have considerable field survey loading data, which were affected due to non-point source pollution load as compared to point source. For investigation of surface rainfall ranging from .50㎜ during non-farming or .10 rainfall on the period of farming, BOD loadings in the field during farming showed slightly higher levels in comparison with discharge loadings, T-N also showed the similar trend as discussed earlier.

소성수축균열 제어를 위한 폴리프로필렌 섬유 보강 시멘트 복합체의 특성

원종필,박찬기 건국대학교 농업자원개발연구소 2000 農資源開發論集 Vol.22 No.-

Plastic shrinkage is likely to occur when the rate of evaporation exceeds the rate at which the bleeding water rises to the surface. Plastic shrinkage clacking occurs at the exposed surfaces of freshly placed concrete due to consolidation of the concrete mass and rapid evaporation of water from the surface. This leads to the tensile stress and concrete surfaces may crack. This so-called shrinkage clacking is a major concern for mortar and concrete, especially for flat structural such as pavement, agricultural roads, slabs for industrial factories and walls. One of the method to reduced the adverse effects of shrinkage cracking is to reinforce concrete with randomly distributed fibers. The contribution of polypropylene fiber to the plastic shrinkage crack reduction potential of concrete and its evaluation are presented in this paper. The results of tests of the polypropylene fiber reinforced concrete were compared with plain concrete. Results indicated that polypropylene fiber reinforcement showed an ability to reduce the total area and maximum crack width significantly(as compared to plain concrete) .

현훈 환자 Neuron Specific Enolase의 임상적 의의

김원주,김선곤,유철형,김원찬,김용덕,최영철,이명식 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

청신경종의 크기에 따른 어지러움의 양상 및 전정기능 검사의 특징

정원호,홍성화,조양선,김성민,장병찬,최재연,이승진 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.1

한국산 Camptorhinus속 성충과 유충에 관한 연구

원대성,이찬용,김종국 江原大學校 森林科學硏究所 2005 Journal of Forest Science Vol.21 No.-

본 연구는 Camptorhinus속의 유충 1종과, 국내미기록종 Camptorhinus dorsalis 성충의 형태적 특징을 기술하였다. This study was carried out to describe the morphological features of adult of Camptorhinus dorsalis(new to Korea)and larva of Camptorhinus sp.

새만금수역의 일차생산력에 관한 연구

원찬희,김종신 全北大學校 附設 都市및環境硏究所 2000 都市 및 環境硏究 Vol.15 No.1

Saemankeum Construction Plan, constructing a 33km tide embankment, is a project that builds 28,300ha land and 11,800ha artificial lake. Since there is a high potential that eutrophication could appear at Saemankeum Lake, its construction has attracted a lot of attentions from academic circles as well as the government. Thus, this study is to estimate the primary productivity in Saemankeum area. To investigate the primary productivity, sample were collected 7 times from May to November in 1998 at seven points. The results were as follows ; The concentrations of Chlorophyll-a in this study area were in the range of 5.3∼46.2㎎/㎥. Mean primary productivity in Saemankeum area was estimated to be 161.6∼990.2㎎C/㎡/d which is wuite similar value to the recent results from the Korea. The highest production rate was found at October in 1998. Therefore, trophic level of the study area was ranged as mesotrophic level by Linkens' Method.

도시쓰레기 처리·처분을 위한 발생원별 쓰레기 배출특성에 관한 연구 : 전주시를 중심으로

원찬희,김종신,김민정 全北大學校 附設 都市및環境硏究所 1997 都市 및 環境硏究 Vol.12 No.1

This paper was on the physico-chemical properties of municipal solid wastes generated from Chonju. Each waste sample was analyzed to obtain physical composition, proximate analysis, chemical composition and heavy metal composition, proximate analysis, chemical composition and heavy metal composition. These characteristics were compared with those of residential and commercial area in Chonju. The densities of solids wastes were largely different for each sampling site and the average densities of wastes from high rise apartment building area and commercial area were 0.247ton/㎥ and 0.177ton/㎥, respectively. The average physical composition of wastes from residential area were food waste 54.4∼57.9%, paper 16.9∼17.9%, vinyl plastics 13.1∼9.3%, while that of commercial area was food waste 49.7%, paper 33%, vinyl plastics 7.0%. The average moisture contents of waste from row-rise detected dwellings and high rise apartment building and commercial area were 32.2%, 35%, 35.6% and the volatile solids were 52.8%, 45%, 44.9%, respectively. The average chemical composition of wastes from residential area were carbon 50.1%, hydrogen 6.2%, while that of commercial area was carbon 51%, hydrogen 6.5%.

소규모 하수처리를 위한 도시 및 농촌하수 특성비교

원찬희,김종신 全北大學校 附設 都市및環境硏究所 1998 都市 및 環境硏究 Vol.13 No.1

This study was carried out in order to estimate the domestic sewage quantities-qualities from combined sewer in Iksan and Hameol. To investigate the domestic sewage quantities-qualities from combined sewer, sample were collected 2 times during this study period at ten points. Flow rate analysis demonstrates a major morning and evening peak between 08:00∼10:00 and 19:00∼22:00, respectively. The concentrations of BOD were in the range of 23∼340㎎/ℓ and 28∼318㎎/ℓ, respectively. The highest concentrations of BOD occurred in the point 1. The concentrations of suspended solids were in the range of 18∼330㎎/ℓ and 13∼85㎎/ℓ, respectively. The pollution loading runoff after a rainy season decreased compared to that made before the rainy season. Comparisions with data for second survey show lower than first survey, from domestic sources, of many dilute water often regarded as having a mainly groundwater origin.