한국산 총채벌레의 분포, 기주 및 분류학적연구

趙廣善,權五均,禹建錫 서울대학교농과대학농업개발연구소 1991 서울대농학연구지 Vol.16 No.2

본 연구는 우리나라 총채벌레의 분포 특성과 기주식물을 조사하기 위하여 1987년 6월부터 1990년 7월까지 공시작물을 대상으로 전국적으로 실시하였다. 본조사에서 얻어진 결과는 다음과 같다. 1. 벼에서 조사된 총채벌레는 벼총채벌레 : Stenchaetothrips biformis, 엉겅퀴총채벌레 : Thrips setosus, 중국관총채벌레 : Haplothrips chinensis, 벼관총채벌레 : H. aculeatus 대만총채벌레 : Franklinilla intonsa등 5종이었다. 2. 조미채소류에서는 고추, 마늘, 양파, 파, 참께 등에서 대만총채벌레 : Fr. intonsa등 9종이 조사되었으며, 하와이총채벌레 : Thrips hawaiiensis와 좀머리총채벌레 : Microcephalothrips abdominalis등 2종을 추가하였다. 3. 과채류에서는 파총채벌레 : Thrips tabaci등 7종이 조사되었다. 이들중 중국관총채벌레 : Hap. chinensis, 대만총채벌레 : Fr. intonsa는 조미채소류에서와 같이 기주범위가 넓었다. 4. 파총채벌레 : Thrips tabaci의 기주식물은 Allium속 등 24종으로 밝혀졌다. 5. 우리나라의 총채벌레분포상은 기지종과 미기록종 Thrips simplex등 8종을 추가하여 63종이며 전체의 약 77%가 총채벌레과에 속했다. This study was carried out investigate the fauna of thrips and their relationship to host plants throughout the country from June, 1987 to July 1990. The results of this study were as follows. 1. Stenchaetothrips biformis, Thrips setosus, Haplothrips chinensis, Haplothrips aculeatus, Frankliniella intonsa were found in the rice. 2. Eleven species including Frankiniella intonsa, Thrips hawaiiensis and Microcephalorthrips abdominalis were found in the seasoning fruit vegetables such as red pepper, garlic. onion, welsh onion and sesame. 3. Seven species including Thrips tabaci were found in the fruit vegetables, especially among them, the host range of Haplothrips chinensis and Frankiniella intonsa was very wide. 4. Thrips tabaci was found in 24 species of plants including Allium. 5. Eight species including Thrips simplex were recorded in this study, so the total number of recorded thrips was 63. 6. The fact was known from this study that Family Thripidae included 77% of total recorded thrips in Korea.

氣一固 流動層으로부터 微細粒子 流出에 對한 Freeboard높이에 미치는 영향

曺煐民,吳光重 울산과학대학 1986 연구논문집 Vol.11 No.2

Freeboard 높이를 변화시킬 수 있는 희분계 流動層을 사용하여 微細粒子 流出速度常數를 固體粒子들의 크기분포, freeboard 높이와 유동화 기체속도를 여러 가지로 변화시켜 연구하였으며 實驗的 결과를 해석하기 위하여 微細粒子들은 단지 氣體의 대류에 의해 수송된다는 간단한 모델이 가정되었다. 이 모델은 두 개의 변수를 고려했는데 하나는 기체의 대류에 의해 조정될 수 있는 微細粒子 수송에 필요한 한정된 높이와 다른 하나는 미세입자유출속도상수를 구하는 것이다. Using a batch fluidized bed with various high freeboard, this experiment was carried out in order to investigate the effect of the freeboard height on the elutriation rate Constant. In order to interpret the experimental results, a simple model was constructed by assuming that the fine particles were transported only by convection of gas. The model included two parameters; one was a critical height above which the transport of fine particles was controlled by convection of gas, and the order was the elutriation rate constant. The elutriation rate constant in multi-sized system below the T.D.H was correlated with freeboard height, relative gas velocity and particle diameter.

유동층을 이용한 탈황제의 마모특성에 관한 연구

오광중,김형국,최은화,조기철 부산대학교 환경문제연구소 1999 環境硏究報 Vol.17 No.1

For the efficient energy use and the protection of environmental pollution, attrition characteristics, depending on the component and the condition of sorbent for the purification of fuel gas, were analyzed by a fluidized-bed tester. Results of these studies can be summarized follows. 1) When Mn-based sorbent(M, MT, MFT) prepared with varying addictives and induration conditions was compared in terms of particle size distribution and AI(Attrition Index), MT and MFT possessing TiO2 and Fe203 had much higher attrition resistance than M. Attrition resistance of M, MT and MFT increased as bentonite contents and induration temperature increased, when bentonite contents induration temperature were changed from 2 to 5% and from 1000 to 1100℃, respectively. Therefore when powdery catalysts are prepared, the attrition rate can be considerably affected by the controls of addictive, binder and induration temperature. 2) Attrition tests using MT1100-5 were performed under the conditions that particle size distribution was uniform and had much more over +270mesh and under -325mesh. AI due to attrition was 8.83, 21.54 and 1.67%, respectively. Thus, initial particle size distribution showed a great influence on both produced fines distribution and attrition loss. Therefore, the size distribution of particles injected initially and the particle size that carried over showed be considered to reduce the loss of particulate materials and the replacement cost due to attrition. 3) An experiment using MT1100-5 sorbent was also carried out to predict AI as a function of time and particle size distribution during 23hr. AI of prepared sorbent was 4.54, 7.73, 9.08, 11.35 and 12.48 after 1.5, 3, 5, 9 and 23hr. respectively. Thus, it was shown that the amount of produced fines during the same time was shorten with the increase of time. The operating condition of dust capturing equipment and the rate of powder exchange needs to be considered because most of the fines due to fluidization of particulate material was generated at initial operation.

전로제강 슬래그(BOF-Slag)를 이용한 고온탈황에 관한 연구

오광중,정덕영,최성원,조상원,손병현 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.51 No.-

고온 석탄연료가스의 탈황에 BOF-Slag의 이용가능성을 실험해 보았다. BOR-Slag의 온도, 유량, 탈황제의 특성등이 H₂S 제거효율에 미치는 영향을 조사해 본 결과, 최적의 H₂S 제거효율은 700℃에서 이루어졌고 입자크기가 작을수록 황포집능은 향상되었으나 0.214-0.631mm에서는 큰 영향이 발견되지 않았다. 조업온도 800℃이상에서는 탈황제의 응집으로 내부물질전달저항이 증가하여 탈황제의 반응성이 저하되었다. Experiments have been made to test the practical feasibility of using BOF-Slag to desulfurize hot coal-derived fuel gas. In this study, the effects of particle size, temperature, flow rate and sorbent characteristics on the H₂S removal efficiency of BOF-Slag were investigated. Experimental results showed that the removal efficiency of H₂S was optimum when the temperature was about 700℃ and the smaller sample size, the better sorbent capacity had and the sample size in the range of 0.214∼0.631mm didn't influence. When the temperature was above 800℃, the reactivity of sorbent has lowered because agglomeration of sorbent increased intraparticle transport resistance.

소각로 배출원별 입경분포 및 이온성분과 방지시설효능에 관한 연구

조상원,정종현,김봉기,오광중 부산대학교 환경문제연구소 1995 環境硏究報 Vol.13 No.-

This study was to comprehend the effect by investigating the particulate size and ingredient, examining the each process size distribution and analyzing all kinds of the ions in incinerator. Incinerating the wood in the absence of control devices, the peaks appeared in coarse particle and it had trimodal distribution. Also in the presence of control devices, the best efficiency appeared in fine particel. Cl?? and SO₄², were mostly distributed in fine particle area and in coarse particle area respectively. In the case of synthetic resin incineration, the size distribution had the peak at both 0.865㎛ and 4.2㎛. In the presence of control devices, peak appeared at 5.95㎛ and the collection efficiencies of Cl??, SO₄², Ca², Na??, K?? were high. Incinerating the leather without control devices, the size distribution had the peak at both 2.58㎛ and 5.95㎛. The leather incineraton had the same collection efficiency as sythetic resin incineration. The coarse particle collection efficiency was high. It is adquate to use the above control devices, together with high efficiency collector like bagfilter. To select the adequate control devices, it is required to investigate the size distribution before establishing control devices.

동일한 혈관 내에 발생한 이식형 약제 주입기 카테터의 위치이상

오대석,김영재,김명훈,조광래,임세훈,이정한,이근무,정순호,신치만 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-

저자들은 56세 여성 환자의 왼쪽 쇄골 하 정맥에 시행한 이식형 약제주입기 카테터의 삽입 후 발생한 비정상 위치에 대한 증례를 보고하고자 한다. 카테터의 끝은 환자의 늘 어진 가슴, 체위, 신체의 움직임, 카테터의 유동성 등의 영향으로 천자된 정맥 내에서 견인되고 뒤쪽으로 이동하였다. 환자는 어떠한 증상도 호소하지 않았지만 비정상 위치의 카테터는 심각한 합병증을 유발할 수 있기 때문에 제거되었다. 따라서 시술자는 약제주입기 삽입 전에 환자의 신체 상태와 단순 흉부 촬영상을 확인하고 카테터의 비정상 위치가 발생할 수 있는 위험 징후를 알아차려야 하겠다.

이동 애드 혹 네트워크에서 QoS를 지원하는 AODV 라우팅 프로토콜

吳世德,趙榮泰,丁燦赫,金玄郁,李光培,姜景仁,朴京培,文泰洙,郭承郁,河載承 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-

Abstract - In this paper, we propose a bidirectional mobile Ad Hoc routing protocol based on AODV(ad-hoc on-demand distance victor routing) with QoS(quality of service) support. At presence, wireless mobile communication focuses on how to efficiently support mobility of users more than QoS guarantee. However, in order to satisfy requirement of various applications which have been or will be served, QoS guarantee between end point is a very important issue. The existing AODV routing protocol is implemented to use only BE (Best Effort) service. However, actual wireless mobile environment requires to reduce a waste of communication resources and meet with the real-time change of data paths by setting up routes with QoS support, considering available communication resources at each node in advance. Therefore, in this thesis, we propose an adaptive QoS support method using hello message in order to rapidly meet with the change of available communication resources and to smoothly perform route maintenance. For performance evaluation, we analyzed the average date reception rate. At that time, we used evaluation parameters such as node's mobility -stop time, hello message period, and packet priority, considering the node's mobility and the number of best effort/QoS data flows. As results, we found that with our proposed method the average data reception rate was increased 16.3% for 0 mobility-stop second case and 4.7% for 300 mobility-stop second case.

천연두 백신 접종 후 발생된 급성 심근염 1예

박옥성,김종환,이광욱,윤성훈,강동구,이승욱,조상기 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Acute myocarditis complicating coronary vasospasm after smallpox vaccination is very rare complication that can be generally developed within less than 30 days after vaccination. Clinically and biochemically, this disorder is often mimic and highly suggestive of acute myocardial infarction. We report 21 years old man that had a history of a smallpox vaccination 3 weeks ago and prodromal symptoms(fever, malaise etc) a few days ago. hIe visited to our hospital because of abrupt onset of severe substernal chest pain, dyspnea and diaphoresis. At admission, electrocardiography was ST elevation in lead Ⅰ, aVL, V4, V5, and V6. The CK-MB level was 68 U/L, LDH level was 760 U/L, Troponin-Ⅰ was 24.64 ng/㎖, and Troponin-T was positive. 2D-echocardiograpy was normal left ventricular function, Clinically we presumed this disorder as acute myocardial infarction and we promptly performed the coronary angiography and revealed focal spasm in distal left coronary artery territory without critical stenosis in both coronary arteries. We diagnosed this disorder as coronary vasospam complicating acute myocarditis that is different with acute myocardial infarction, and we prescribed nitroglycerin and nifedipine. After discharge, he is now well without any symptoms and has been following up monthly at our outward department for 6 months.

[논문]비소로 오염된 토양의 고형화에 관한 연구

오방일,노경환,조기철,정영헌,오광중 부산대학교 환경문제연구소 2004 環境硏究報 Vol.22 No.-

A Study on the Solidification of Soi1 Contaminated by Arsenite

부산·경남지역의 토양오염물질간의 상관도에 관한 연구

주유연,조상원,오광중,손병현 부산대학교 환경문제연구소 1994 環境硏究報 Vol.12 No.-

It appeared over all regions expect common life area that the pollutants level of soil heavy metals in Pusan and kyoung-Nam Province, was higher than the standard on in agriculture area. Especially, Atmosphere and waste area appeared much high and it necessitates monitoring these areas continually. Where we analyzed pollutants level of heavy metals in paddy soils in correspondence with Pusan, Ulsan, and Yangsan region, the order of Pb and Cd concentration were Yangsan 〉 Pusan 〉 Ulsan, the order of Cu and Zn were Yangsan 〉 Ulsan 〉 Pusan, the order of Hg and As were Ulsan 〉 Yangsan 〉 Pusan respectively. It appeared the whole concentration of heavy metals expect Hg and As were the highest ones in Yangsan. So, it was thought that special management should be needed. The analysis of correlation between heavy metals in soil showed that the correlation level between Cd and Pb, Cu and Pb and Zn, Hg and As was high in agricultural area and the correlation level between Zn and Pb, Cd and Hg, Cd and Cu was high but the one between Cd and As was low in atmosphere area. And the correlation between Pb and Cd, Hg and Zn, Hg and Cu was high but the one between Hg and Cu was low in waste area and the correlation level between As and Pb, As and Zn was slightly high but the one between Cd and Cu is low in water area.