선인장 양심실 보조장치의 설계 및 임상적용을 위한 평가

민병구,박찬영,최재순,이혁수,황창모,김삼성,윤걸중,김종원,선경,이경갑,정종태,김원곤 제주대학교 인공심장이식연구소 2001 인공심장 연구 Vol.2 No.1

현재 개발되고 있는 맥동형 이식형 인공심장은 완전이식형 인공심장과 좌심실보조장치 뿐이다. 좌심실보조장치를 장착한 환자의 10~15%가 우심실의 보조를 필요로하고 완전이식형 인공심장의 장착을 위해서는 자연심장을 제거해야하는 상황에서 이식형 양심실보조장치에 대한 필요성이 대두되고 있다. 본 연구진은 완전이식형 인공심장으로 개발된 한국형 인공심장을 개선하여 양심 실 보조장치를 개발하였다. 양심실보조장치는 이동형 작동기식 미케니즘을 이용하고 있으며 에너지 변환장치와 감속기로 구성된 작동기와 혈액주머니, 그리고 내장형 제어기로 구성되어 있다. 선인장 펌프로 명명된 KAH350은 캐뉼라의 연결을 위한 커넥터를 포함하여 길이 177mm, 폭 164mm, 높이 67 이고 무게 780g이며 최대 심박출량은 5L/min 이다. 양심실보조장치로 개발된 선인장펌프는 좌심실보조장치로도 응용이 가능하다. 이식적합성과 생체적합성을 평가하기 위하여 좌심실보조장치로 5회, 양싱실보조장치로 6회의 동물실험을 수행하였다. 각각 최장 28일간 생존하였으며 11회의 동물실험중 장치의 결함에 의한 것이 3회 있었는데 이들은 모두 전자장치의 결함과 방수처리문제였다. 현재 이식적합성과 일박출량을 향상시킨 KAH400모델이 개발중이다. The types of pulsatile implantable artificial hearts that are on the way of development and have been developed are totally implantable artificial heart and implantable left ventricular assist device (LVAD). Approximately 10% to 15% of all patients Implanted with wearable VADs have required right heart support with another device. And it is reluctant to patient who should remove his or her own heart to be implanted with total artificial heart. These situations drive the development of implantable bi-ventricular assist device (BVAD). The Korean BVAD was develophed by modifying the moving actuator type Korean artificial heart. This electro-mechanical BVAD comprises actuator including energy converter and reduction gear train, blood sacs, and internal motor and energy controllers. The KAH350 which is named as 'Cactus Pump' is 177mm in length, 164mm in width, and 67mm in thickness including connectors and nuts. The weight and maximum cardiac output of Cactus Pump is 780g and 5L/min, respectively. The Cactus Pump that was developed as BVAD could be used as LVAD by attaching compliance caps on the 2 ports of one ventricle. The animal experiments were undergone 5 times for LVAD, and 6 times for BVAD. The best records were 28 days survival in both applications. There were 3 times of device failure and they were all associated with electrical connection and hermetic sealing. The KAH400 that has improved anatomical fitting characterisitcs and stroke volume is on development.

외이도 이물에 의한 경정맥구 손상 1예

박찬흠,소상훈,김형종,임현준 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.9

京畿西部地域 乳牛의 牛白血病 抗體陽性率에 대한 調査硏究

林贊燮,金泰鍾 건국대학교 동물자원연구센터 1992 動物資源硏究誌 Vol.17 No.-

This survey was carried out to detect the bovine leukosis virus antibody from 223 dairy cattle rearing in Western Kyeonggi area by the agar gel immunodiffusion test using bovine leukosis virus(BLV) glyco-protein antigens. Lymphocytes rates for total white blood cell(WBC) in the BLV antibody positive cattle were also determined with the blood cell analyzer and blood smear stained with Giemsa's standing. The results obtained from this survey were as follows : 1. The overall positive rate was 15.70% in 223 heads surveyed. 2. The infection rate was various depending on the surveyed area, 7.50% (3 heads out of 40 heads surveyed) in Incheon, 4.84%(3 heads out of 62 heads surveyed) in Northern Kimpo, 22.97%(17 heads out of 74 heads surveyed) in Southern Kimpo and 25.53%(12 heads out of 47 heads surveyed) in Siheung area. 3. In the hematological findings, lymphocytes rate(above 70%) for total WBC in the 35 BLV antibody positive cattle was observed at 11 heads(31.43%).

草汀時調에 나타난 Modernity

임종찬 釜山大學校 1991 人文論叢 Vol.38 No.1

Choieong's early Sijo showed these characteristics, 1) By using one of the traditional oriental poetic strategies, the joining of poetry and picture, he devised a cubic, sensational sijo form, from a different aspect, influenced by the modernist's trend popular in the contemporary literary world. This is one of the main characteristics that distinguish the sijo in the period of enlightenment(개화기), that of Yukdong and Nosan, from the other sijo forms. 2) As to the embodiment of image, Chojeong's sijo is of the same style as karam's but Chojeong's sijo differs from karam's in that a historical meaning underlies chojeng's, unlike karam's, and moreover it shows on external imitation of the object. Hereby a historical meaning we wean to instil to wake up the national soul. In his later sijo works we can find these characteristics, 1) Compared with the former sijo, these arose an expansion of the subject. 2) In his later sijo works, insread of centering on the external discription, he created works centering on the deepening of meaning more than those of the external description. 3) In his later work. as a result of empasizing on the deepening of meaning, these appeared the poetic world of abstract, non-materialization. Finally, Chojeong can be said to be one of the enegetic sijo poets who have tried to evlutionize sijo through many times of experiments on its form.

구ㆍ미주 관광객의 인구 특성요인과 기대 요인에 따른 만족도에 관한 실증적 연구 : 한국 관광기념품 구매와 관련하여 In relation to purchasing Korean Tourism Souvenirs

박명찬,고종원 한국관광정보학회 2001 觀光情報硏究 Vol.- No.9

The purpose of this paper can be said to analyze the satisfaction and preference of Europe and the Americas tourists visiting Korea to local tourism souvenirs using data their population characteristics factors and expectation factors before purchasing. As the paper process, the bibliographic research on related data issued by the authorized research institution for the country's inside and outside and empirical research by the distribution and collection of questionnaire for the purpose of showing the desires of Europe and the Americas tourists to Korean souvenirs products were performed in parallel. The contents of this research are summarized as below. As mentioned above, this paper is divide by two parts, the relevance between the population factors and satisfaction degree to Europe and the Americas tourists and the connection between the satisfaction degree and expectation degree to them. Among variables of Korean souvenirs such as art, originality, design and price, etc., Overall Europe and the Americas consumers are made clear as dissatisfied with art and originality of Korean souvenirs. Except these factors, other factors are classified with the scope of satisfaction to Americans. So For the sales increasing to Europe and the Americas consumers, these inferior factors have to be invested, researched and developed using the government's supports and related firms' core capabilities. such as marketing mix. Finally, in case of the relevance of satisfaction after purchasing and expectation before purchasing by Europe and the Americas consumers. All factors like design, packaging, price, variety, art, originality are satisfied with them as showing positive significance between them. So this result lets us think that Korean souvenirs have international competition to Europe and the Americas tourists. Therefore, the firm will keep the increasing intensity of global competition.

定冠詞에 關한 硏究

김종찬 聖潔大學校 人文科學硏究所 1998 人文科學論叢 Vol.3 No.-

Abstract This thesis aims to discover the principles governing the use of the definite article by comparing the definite article(the) with the zero article(ø) This thesis begins first by making clear the concept of language, the concept of distinctiveness in language, and the principles, ie, the principle of maximum perceptual separation and the principle of maximum ease of articulation, governing the distinctiveness. According to Ladeforged, lingustic processes can be explained by the principle of maximum ease of articulation and the principle of maximum perceptual separtaion The principle of maximum ease of articulation states that the speaker, one of two parties to utterance, would like to convey meaning with the least articulatory effort. At the same time, the principle of maximum perceptual separation states that the listener would like to be able to understand the meaning with the least possible effort. From the conceptual viewpoint of sign, it follows that the priciples above are replaced by the principle of maximum conceptual separation and the principle of economy. This thesis arrives at the conclusion that the use of the definite article should be governed by the principle of maximum conceptual separation and the principle of economy.

발생원별에 따른 PAHs 배출특성

박찬구,윤중섭,김민영,손종열,모세영 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.3

The results of individual PAH source profiles that can be applied to receptor model are as follows. The sum of 16 PAH concentrations was 391.41 ng/S㎥ in a tunnel. Phenanthrene was the most abundant compound among 16 PAH, and then pyrene, fIuoranthene, anthracene, and naphthalene can be seen in elevated contents. 11,056.61 ng/S㎥ of 16 PAH concentrations in BC oil boiler was two times higher than 6,582.57 ng/S㎥ of those in LNG boiler. Naphthalene was the most abundant compound in both facilities. Phenanthrene, anthracene. and acenaphthylene were the second dominant compound group in order from both facilities. BC oil boiler had relatively high concentration of pyrene compared to LNG boiler that had high concentration of fluorene and did not detect pyrene. The sum of 16 PAH concentrations emitted from MSW incinerators after APCD (air pollution control device) was three times higher than those from MSW incinerators bcfore APCD. However, the concentrations of more than 4-ring PAH compounds (e.g., benzo (a)anthracene) before APCD were higher than those after APCD. This fact implies that PAHs generated by combustion process are eliminated in APCD and they are continuously produced in stack or atmosphere by PAHs precursors.

다변량해석기법을 이용한 만경강水系의 水質評價

오연찬,이남도,김종구 한국환경과학회 2004 한국환경과학회지 Vol.13 No.3

This study was conducted to evaluate water quality in the Mankyung River using multivariate analysis. The analysis data which was surveyed from January 1996 to December 2002 in Mankyung river was aquired by the ministry of environment. Twelve water quality parameters were determined on each survey. The results were summarized as follow ; Water quality in the Mankyung River could be explained up to 74.90% by four factors which were included in loading of organic matter and nutrients by the tributaries(43.28%), seasonal variation(10.40%), loading of pathogenic bacteria by domestic sewage of Gapcheon (12.41%) and internal metabolism in river(8.81%). The result of cluster analysis by station was classified into three group that has different water quality characteristics. Especially, Iksan river was appeared to considerable water quality characteristics against other station. In monthly cluster analysis, three group was classified by seasonal characteristics. Also, in yearly cluster analysis, three group was classified. It is necessary to control the pollutant loadings by domestic sewage and livestock waste for water quality management of Mankyung river.

曺雲時調와 민족정신

임종찬 釜山大學校 1989 人文論叢 Vol.35 No.1

Abstract This research can be concluded as follows. First, Cho-un's sijo works are mostly ones that reflect his personal experiences and, further, the common experiences of Korean people. Second, Cho-un's jangsijo works show themselves to be a sort of free verse. This means that he emphasized the Korean soul in his works unlike the literary world then where most of the poets are concerned with the production of the western - style free verse. Third, Cho-un's suggested the possibility of writing a new type of tour sijo. He pointed out two facts : One is that the traditional tour sijo is not a pure one ; another is that by visiting historic sites in Korea he interpreted the present situation newly in a historical context to evoke the Korean Soul. Lastly, grasping that the traditional sijo had not been intimate with the reader, Cho-un's created a new type of sijo which are easily accepted by the reader while Cho-un created sijo works to evoke Korean soul in the reader.

분뇨처리장의 공정개선에 의한 처리효율 향상에 관한 연구

이찬원,김승현,김창수,문성원,전홍표,윤종섭 한국환경과학회 2004 한국환경과학회지 Vol.13 No.6

There is a need to improve the efficiency of the existing sanitary treatment facilities, because the effluent standard becomes more stricter and septic sludge increased. Thus, operating processes of sanitary treatment system in M city changed with installation of additional facilities. Process modifications were as follows: Dilution water was added to the next process after primary aeration tank. Some secondary sedimentation sludge was recycled to primary aerator so that most of the organics were stabilized in primary aeration tank under automatic control of dissolved oxygen. The line of effluent from dewatering process flowing to the activated sludge tank was changed to the primary aerator. The primary sedimentation sludge line was linked to a thickener. Polymer was added to the activated sludge tank. The effluent of primary aerator and aerobic digester was recycled from the 5th to the 1st sector. As consequencies of above process modifications, the improvement of removal efficiency was achieved as BOD 54%, COD 42%, SS 61%, T-N 39%, and T-P 12%, respectively.