전시-P-91 : Costs and Productivities of Forest Biomass Harvesting Operations in the US

( Han Sup Han1 ),( Sang Kyun Han ),( Du Song Cha ),( Nam Hun Kim ) 韓國木材工學會 2013 한국목재공학회 학술발표논문집 Vol.2013 No.-

조강성 혼화제 종류에 따른 콘크리트의 물리적 특성

한천구,한민철,노상균 청주대학교 산업과학연구소 2009 産業科學硏究 Vol.26 No.2

The purpose of this study is to compare and analyze the physical properties of concrete in connection with the recent trends to reduce construction periods, in order to increase early-strength of the concrete where the various kinds of liquified early strength concrete agent are used. As for the experiment plan in two levels such as the W/C 30, 50 %, which the standard air entraining water reducing agent(The following P) was intermixed as the plain, the early-strength agent of MAS serial(The following A), the AE reducing agent of early-strength type of the polycarbonic acid serial(The following B) and the naphthalene+lignin serial(The following C) were selected to change them into 4 levels, so that total 8 levels might be included in the experiment. According to the results, the setting time accelerated as the B was fastest and followed by A and C. And as for the compressive strength, the strength development of A recorded 115 %, B recorded 95% and C recorded 80 % of the plain mixture respectively when they were compared with the plain mixture at one day of age, but in the case of 3 days of age, a recorded 103 %, B recorded 104 % and C recorded 110 % of the plain mixture respectively. On the other hand, when A was added the air content increased by 2 %, so it is judged that the compressive strength of A would more than by 10% in consideration of the fact that the compressive strength fell off by 4~6 % when the air content increased by 1 %.

제주 돼지의 사육개선을 위한 기초조사 연구

한성욱,김형균,강태숙 제주대학교 1971 논문집 Vol.3 No.-

. The raising and feeding of swine in outhouses(Toilet) arose long ago and become a habit or custom for excrement control. The primary reason for practice is that most Cheju people simply do not like to tauch human feces. As a result of swine living in outhouses (Toilet) there is a great danger to humans of infection with cysticercus cellulosae from eating improperly cooked pork. Farmers do not recognize the offet of cysticercus cellulosae on human beings and must receive adequate education. We can slowly eliminate this problom by teaching and re emphasizing the unsanitary conditions and economic loss arising from this practice of W, C swine raising. The local governments and educated citizens as well as know ledgeable farmers must give continuous instruction and guidance in sanitary practices if we are to alter and eliminate swine feeding in the toilet 1. In Cheju-do the family does not include married children, thus the families are necessarily smaller than the mainland and the number of pigs at any house depends upon number of peoples in the family thus it is usually impossible to feed more than one pig since human feces are utilized as pig feed. 2. Since farmers have only a small amount of feed and feces and aware that the growth rate during a pig's first year is greater than its growth rate during the second year thus indicating a highly efficient utilization of feed during the first year, the farmers usually sell the pig within the first year. 3. Since there is a shortage of sanitary pig feed in Cheju-do greater use should be made of the waste products left over from sweet potato starch production. 4. The primary reason for raising the pig in the toilet is that about 90% of the people do not like to touch human feces out of habit. 5. The first objective in improving the feeding of Cheju swine is the instruction of farmers in the sanitation and health problems and econmic loss involved in raising pigs in the toilet because about 50% of the farmers are ignorant of even the existence of cysticercus cellulosae and its due effect on human beings.

空域의 自由와 空域主權

韓成均 건국대학교 1979 學術誌 Vol.23 No.1

After the World War II, notable development of the international aviation not only has constituted an important part in international relations legally, but also it has become a recent channel of the international culture and economy. Emerging of the jet-engine system of the 1960' improved the international aviation in quality any more than the marine and land traffic. In such a striking evolution of international aviation, some theoretical grounds arose on the scale of control of Aviation Law upon the international law on the view point of Air-Space Sovereignty and incident problems. Especially the termination of two principles, sovereignty and liberty of aviation, changed the functions and definitions of national sovereignty, and economic elements emerging from the theories of the federalist status and of the liberty of international aviation changed the definition of territorial sovereignty to that of economic right. In spite of the fact that there are so many factors on the functional change, it is difficult to control the international aviation. It would be only possible to solve the difficulties by the interest-cordination of each nations. But from the promulgation of the Treaty of Chicago up to date, commercial exchange by the system of mosaic minglement made it indispensable to keep the regular air service from the practical control of the enterprise and member-state. On the viewpoint of legislation, bilateral-treaty is necessary to supplement the faults of multistage treaties. Thus it is international trend to strengthen the space-sovereignty for their national interest. Through the World War ll, each nation had protested the exclusive space-sovereignty, but after the Paris treaty, in spite of the evolution of international aviation and its liberty, it became in fact desirable to define the absoluteness of the space-sovereignty.

空域主權 成立의 史的 考察 : 1910年부터 1916年까지

韓成均 건국대학교 1976 學術誌 Vol.20 No.1

Since the 19th century the legal status of space gradually began to change as new problems of international law developed among the international society. Especially from the 20th century the enlargement of aviation needed a clearer legal status for the control of outer space and international aviation. Many thesises in the field of legal status of space including those of Fauchille who was the forerunner of specialist in space law were published. But it was after the Paris' International Aviation Association of 1910 that the national public interest in international aviation appeared clear. Also after the Paris' International Aviation Treaty of 1919 the national aviation sovereignty approved this project. Since the airplane's utilization as a weapon rose through world war I, the ten period from 1910 to 1919 is considered as a very important period for the establishment of space sovereignty. The purpose of this study is to describe historically how the legal status of space established from 1910 to 1919. To describe it, this study will explain historically the national aviation treaty and its background according to the view of scholars and the decisions of international lawmakers of many countries.

B형 간염바이러스 항원 preS 및 S부위가 안정적으로 발현되는 CHO세포주 선별

정성균,한만덕,정대균 경희대학교식량자원개발연구소 2007 硏究論文集 Vol.26 No.1

In order to develop vaccines against HBV, 10 different plasmids expressing various regions of hepatitis B surface antigen (HBsAg) were constructed, first. Then, CHO cells were transfected with the plasmids and examined their HBsAg expression levels. We then established CHO transfectants expressing dhfr and HBsAg using pIEsp2878-dhfr plasmid and treated them with methotrexate (MTX). Finally, we selected IY-CHO-2 and IY-CHO-11 cell lines showing the amplified expression of HBsAg containing pre-S2 and S region. These cell lines expressed expected correct size (about 1 kb in lengte) of HBsAg mRNA.

모바일로봇 장애물회피 제어

심병균,Nguyen Huu Cong,김준홍,조창제,한성현 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

This paper achieves a research about avoidance of obstacles avoidance based on ultrasonic sensor. The performance of the proposed obstacle avoidance robot controller in order to determine the exact dynamic systems modeling system that uncertainty is difficult for nomadic controlled robot direction angle by ultrasonic sensors throughout controlled performance tests. In additionally, this study is an in different ways than the self-driving simulator in the development of ultrasonic sensors and unmanned remote control techniques used by the self-driving robot controlled driving through an unmanned remote controlled unmanned realize the performance of factory automation.

진공차단기용 영구자석형 엑추에이터 최적설계

김한균,김중경,이정근,한성진 東亞大學校附設 情報技術硏究所 2005 情報技術硏究所論文誌 Vol.13 No.1

The vacuum interrupter operated by permanent magnet actuator(PMA) gives outlook on improved characteristic, higher reliability and cost price reduction as well as the feature of simple structure and few component. For the anlysis and design of permanent magnetic actuator, not only electric, magnetic and mechanical phenomena but also material properties should be taken into account. Aim of the present paper is modeling of permanent magnet actuator(PMA) used in medium voltage distribution systems and remodeling by permanent magnetic. Coupled finite element method is used to analysis the modeling and we compared with previous PMA model and improved PMA model.

위선암에서 p53, c-erbB-2, 그리고 DNA ploidy의 상관관계에 관한 연구

강상균,양승하,김대중,김의한,곽현수 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.2

Gastric carcinoma is the most common malignant tumor in korea and many oncogenes have found in gastric carcinoma. The relation between the expression of p53 and c-erbB-2 and the prognosis of patient in gastric adenocarcinoma have studied recently, but it is controversy. To evaluate correlation between the pathologic findings including prognostic factors and the expression of p53 and c-erbB-2, and DNA ploidy, we have performed immunohistochemical staining using 83 cases adenocarcinoma and flow cytometry with 56 cases. The results were as follows; 1) The expression rate of p53 was 45.8% in gastric adenocarcinoma. Differentiated, intestinal, advanced, and lymph node metastatic cases showed higher expression rates than poorly differentiated, diffuse, and non-metastatic cases, without statistically significance. 2) The expression rate of c-erbB-2 was 62.6% in gastric adenocainoma. c-erbB-2 was related to differentiated and intestinal types. Advanced and metastatic cases showed higher expression rates of c-erbB-2 than early and non-metastatic cases, but there was not statistic significance 3) Gastric adenocarcinoma showed correlation of DNA diploidy with poorly differentiated type and aneuploidy with differentiated. 4) DNA diploidy and aneuploidy showed correlation with c-erbB-2 negative and postive cases respectively, but correlation between DNA ploidy with p53 expression was not proved. Above results showed that p53 and c-erbB-2 may be related poor prognosis but there was no statistic significance. DNA aneuploidy and diploidy showed correlation with c-erbB-2 expressed and non-expressed cases, respectively, but not with p53 expression.

Rocuronium의 애별투여방법이 모지내전근의 이완에 미치는 영향

최영균,김승수,이원진,조광래,이상은,김영환,임세훈,이정한,이근무,정순호,김영재,신치만 인제대학교 2009 仁濟醫學 Vol.30 No.-

Objective : There are controversies in pnmmg technique of rocuronium whether it can or can't shorten the onset time. We want to compare the effects of two different priming doses and intervals of rocuronium. Materials and Methods : After giving propofol, 50 patients were randomly assigned to 5 groups. Group I received a placebo, followed 3 min later by rocuronium 0.6 mg/kg. Priming doses and intervals of Group II, Ill, N, V were 0.06 rng/kg and 2 min, 0.12 mg/kg and 2 min, 0.06 rug/kg and 3 min, 0.12 mg/kg and 3 min, respectively. Total dose of rocuronium was 0.6mg/kg. Train of four (TOF) count or ratio and 1st twitch height of TOF (T1) were monitored with 15 secondsintervals. TOF ratio of each groups just before bolus injection, duration for TOF count to reach zero and duration for Tl to reach 95% depression after bolus injection were compared. Results : Duration for TOF count to reach zero and duration for Tl to reach 95% depression after bolus injection were decreased in priming groups compared to Group 1 (P < 0.01) In group V, significant depression of TOF ratio just before bolus injection was seen (P < 0.05). Conclusion : Priming technique with rocuronium is effective method to shorten the onset of neuromuscular block. But priming dose of rocuronium itself could cause hypoxia and aspiration in awake patients and should be used carefully. Priming dose of rocuronium 0.06 mg/kg and 2 minutes interval maybe relatively safe method.