• 한국농촌건축학회논문집
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• 제12권1호
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• pp.49-56
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• 2010

This paper is aimed to clarify field technique of non-educated constructors in timber structure of korean-style secondary station(Gong-So) on the annex of catholic church. The main object of this study is Sin-Sung and Su-Bun secondary stations which post-lintel structure was 2high columns(Go-Ju) 5beams(Ryang) in Jeon-Buk area of Korea. We reached the following conclusion. Firstly, these secondary stations are required a lots of space for number of persons with the introduction of basilica plane. These plans have different intervals in the layout. Secondly, they constructed the holy space by using high columns(Nae-Jin-Go-Ju). The former problems of plan layout are sloved by reinforcement and replacement eaves and rafter of logitudinal. Thirdly, the elements showed the natural feature such as irregular wooden floor, arch-type head pentrating tie and a ceiling. In the end, we knew that non-educated constructor had found a way in the problem for accepting unreasonable work.

• Annals of Clinical Neurophysiology
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• 제1권2호
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• pp.99-105
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• 1999

Background and Objectives : The Motor evoked potentials (MEP) study may be useful in the evaluation of the degree of impairment in the motor nervous system and in the determination of the prognosis. The purpose of this study is to evaluate the status of central nervous system in acute and subacute state of cerebral ischemia by comparing the changes of MEP in the initial and follow-up study. Methods : Twenty patients with hemiparesis caused by ischemic stroke were recruited for this study. We tested MEP within 7 days and followed-up after 14 days after symptom onset. The cerebral motor cortex area, cervical area for upper extremity and lumbar area for lower extremity were stimulated by transmagnetic stimulator. The central motor conduction time(CMCT) was measured with the difference in MEP caused by stimulating the vertical area and spinal area. The CMCT of hemiparetic patients were classified into three groups-normal, delayed, and no evoked MEP groups. Results : The CMCT in hemiparetic side of acute ischemic stroke patients were singnificantly delayed (P < 0.05) compared with the control group. The CMCT of hemiparetic side in the follow-up study showed no sinificantly difference in comparison to the control group. The prognosis of motor improvement was better in the groups of delayed MEP than the groups of no evoked MEP. Conclusion : The CMCT of hemiparetic and contralateral sides were delayed in acute ischemic stroke, compared with control group and were returned to normal boundaries in subacute state. But in the most cases with no MEP response in the initial study, also showed no MEP response in the follow-up study. The recovery occurred in the subacute state in cases with mild hemiparesis, whereas recovery did not occur in the subacute stage in case with severe hemiparesis.

• 공업화학
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• 제24권6호
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• pp.668-671
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• 2013

본 연구에서는 정수기용 필터로 사용되는 활성탄 블록을 압출 방법으로 제조할 경우 활성탄 블록의 비표면적에 영향을 미치는 고분자 바인더의 특성에 관하여 고찰하였다. 고분자 바인더로 사용되는 Polyethylene의 입자 크기를 변화하여 그에 따른 활성탄 블록의 비표면적의 변화 및 수용액상에서 염소 이온의 흡착 특성을 연구하였다. FE-SEM을 이용하여 PE의 입자 크기 및 입자의 모양을 분석하였으며, 질소 흡 탈착을 이용하여 활성탄 및 활성탄 블록의 비표면적을 측정하였다. 비표면적 측정결과 원료 활성탄은 $1186(m^2/g)$, PE 바인더의 입자크기가 $200{\mu}m$일 때 $444(m^2/g)$, $20{\mu}m$일때 $940(m^2/g)$로 측정되었으며, 필터 성능을 확인하기 위하여 염소 흡착 실험을 실시하여 정수 성능을 평가하였다.

• 조명전기설비학회논문지
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• 제20권10호
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• pp.35-40
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• 2006

이 논문에서는 주파수 가변형 무선 personal area network(PAN) 통신시스템 및 단말에 적용이 가능한 응용 회로로써, 탭계수(tap coefficient) 회로를 가변시련 수 있는 전류모드 아날로그 finite impulse response (FIR) 필터를 제안한다. 가변되는 7-tap FIR 필터의 동작은 컴퓨터 모의실험으로부터 확인하였고, $0.8[{\mu}m]$ CMOS 공정기술을 사용하여 0.0625-step 탭계수 회로가 제작되었다. 제안된 FIR 필터는 탭계수의 길이와 계수를 가변시킬 수 있기 때문에 주파수 가변형 무선 PAN통신 시스템 및 단말기에 적용 가능한 유용한 특성을 갖는다.

• 수산해양기술연구
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• 제34권2호
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• pp.105-116
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• 1998

This paper, examines the relationship between water temperatures and fishing conditions of common squid by the squid angling fishery from June to September in 1993-1995. The condition of the common squid fishing largely depended on the fluctuation of water temperature in the coastal area of Gampo. Monthly mean water temperatures during June m September in 1993 and 1994 were relatively higher than those in 1995 in Gampo area. But the values between July and August in 1995 were about 5$^{\circ}C$ lower than those in 1993 and 1995. Coefficients of variation (CV) of water temperature showed the lowest value during July ~ September in 1993, however, the highest value was observed in July and August in 1994. Catch per unit effort (CPUE ; kg/angling) showed a peak with 73.7kg in 1993 when the CV was low. On the other hand, the lowest CPUE of 39.6kg was observed in 1994 when the CV was high. It was concluded that the high stability of water temperatures and the weak strength of cold water have caused the good fishing conditions of common squid.

• 한국조경학회지
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• 제26권1호
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• pp.51-58
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• 1998

The opening of an event in a given geographical area may be defined as an innovation. Visitors to the event adopt the innovation; therefore, their visitation patterns since the opening can be regarded as a diffusion process. Bass' model of diffusion process was applied to analyzing weekly visitation of Kwang-ju Viennale. Parameters of the Bass' model were estimated by regression analysis, and then reviewed in terms of applicability. Actual estimation of event visitation was implemented by calculation of the three parameters of the model based on the actual data. After comparing estimated value with actual value, it was concluded that Bass' model is applicable to estimating event visitation as far as it is the only prediction method available at this point.

• 대한조선학회 특별논문집
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• 대한조선학회 2009년도 특별논문집
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• pp.87-92
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• 2009

CSR for bulk carrier has been required 25 years operation life in North Atlantic condition. As the fatigue life requirement of ship structure is increased it is necessary to study to satisfy the fatigue life which is much severe. Therefore from the fatigue analysis, especially fatigue strength for double bottom & lower stool connection area is not enough. To satisfy the fatigue life, it needs to increase double bottom strength or insert thicker plate. In this study, the consideration though structure modification have been doe with 81K bulk carrier and to find the solution of fatigue problem.

• The Korean Journal of Ecology
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• 제13권2호
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• pp.101-130
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• 1990

The forest vegetation of Mt. Halla national park area. Cheju island, Korea, was classified into six associations in three alliances and two associations in unidentified alliances by Z-M school method as follows: Unidentified alliance Saso-Abietetum Koreanae assoc. nov. Acero-Quercion mongoliae Kim et Yim 1988 Hepatico-Quercetum mongolicae assoc. nov. Saso-Carpinioin laxiflorae all. nov. Saso-Carpinetum laxiflorae assoc. nov. Daphniphyllo-Carpinetum tschonoskii assoc. nov. Asaro-Quercetum serratae assoc. nov. Rhododendro-Pinion densiflorae Kim et Yim 1988 Saso-Pinetum densiflorae assoc. nov. pinus thunbergii community Unidentified alliance Ardiso-Torretum nuciferae assoc. nov. Among them one now alliance and seven new associations were found and marked with "nov."

• Journal of Chest Surgery
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• 제13권2호
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• pp.154-157
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• 1980

A twenty three year old, Primigravida and 32 week pregnant woman who has been complained dyspnea, chest pain, nausea and vomiting was admitted to this chest surgical department on Feb. 19, 1979. Physical findings were those of acutely ill appearance, decreased thoracic excursion and absence of breath sounds in the left hemithorax. Roentgen examination of the chest revealed reticular cystic densities in the left, particularly in lower lung field with collapse of the left lung. Correction of the diaphragmatic hernia was carried out with reduction and repair of the hernia through transperitoneal approach. On exploration, the defect of the diaphragm was 12 x 12 cm in size and was located posterolateral area of left diaphragm. Hernia contents were stomach, spleen, omentum and splenic flexure of large bowel. The baby was normal full term spontaneous delivered at 36th POD. Diaphragmatic hernia complicated by pregnancy is a rarity and mortality is extremely high. Therefore, the literatures have reviewed and the case is reported.

• 대한공간정보학회지
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• 제2권2호
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• pp.117-124
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• 1994

본 연구는 인공위성을 이용한 3차원 위치결정 방법인 GPS를 이용하여 광주시 일원의 소수의 측지 및 지적 삼각점 도근점을 관측하여 WGS 84 data를 경 위도 좌표계로 변환시켜 GPS data의 신뢰성을 검증하고 차후 좌표측량시 GPS 도입시 제기되는 문제점을 파악하고져 하였다.