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Mo 화학기상증착에 있어서 불순물 농도에 미치는 증착조건의 영향
배상석,서성교,홍은식,김승모,조미정,한혜정,이두성,김세훈,민석홍 국립7개대학공동논문집간행위원회 2001 공업기술연구 Vol.1 No.-
The thermal decomposition process of Mo(CO)_6 on chemical vapor deposition was investigated by analyzing the effects of deposition temperature, pressure, and reaction gas on the phase change of deposited films. Mo_2C was deposited at or below 350℃ due to the incompleteness of thermal decomposition of Mo(CO)_6, but Mo films was successfully deposited at 400℃ or higher temperatures. The variation of deposition pressure did not change the dependence of decomposition process on deposition temperature. The activation energy of surface reaction was 5.8 ㎉/mole.
李晶模 한국항공대학교 1986 論文集 Vol.24 No.-
Most pilots in the general aviation are familiar with winter conditions in their particular area, after a distance of a few miles may change the environment enough to present new problems to an inexperienced pilot. Even though experienced pilot who has served many years within warm area, sometimes, meets unexpected flight problems when he fly into the wintery weather area. These problems can be critical factor of the accidents or of hazardous event for the safety flying. Not only inexperiencing of the pilots there could be some other reasons creating them. This paper is to deal with examination by reference to the every winter operating procedures of the light aircraft and to the anticipated gap in the keeping of pilot proficiency in relation to the winter flying matters of the aircraft operating manuals. And the paper is emphasizing that the winter flying subject should be appeared positively somewhere in the pilot training courses and should be inserted to the every aircraft operating manual as a section.
李晶模,金七永 한국항공대학교 1989 論文集 Vol.27 No.-
GNP 上昇에 따라 사람들이 要求하는 交通서비스 질은 높아지고, 他 交通手段과의 競爭을 度外視한 상태에서는 시대흐름에 따라 變貌하는 交通市場需要를 充足할 수 없는 것이다. 국토면적이 좁은 우리나라의 경우, 道路産業의 發達과 鐵道産業이 高速化에 對應하여 航空交通 發展은 어렵게 되어있다. 따라서 交通需要增加 추세와 他 交通手段에 대한 敎通政策 등을 分析하여 需要變化에 따라 伸縮性있게 대처하기위한 不定期 및 一般航空機의 航空交通體系를 硏究하여 航空交通의 發展方向을 도출하였다. The service qualities of transportation must be raised with G.N.P inereasement because most people prefer to more comfortable and higher class transportation means. And the time is more worthy for a high - income people than another. In these circumstances air transportation have been developed remarkably. But it is doutful that air transportations are able to maintain a superior position in competitive transportation market because advanced high way expresses and super railroads are under the rapid improvement conditions. This paper is to deal with analysis the increasing tendency of transportation demands and other transportation policies, and suggestions for improvement of domestic air transportations.
Anisakids larvae의 형태학적 분류 : 해산어류 및 두족류를 중심으로 On the Marine fishes and Cephalopoda
이정훈,정영모,한성용,손성원 慶南大學校 附設 基礎科學硏究所 1995 硏究論文集 Vol.7 No.-
In order to study classification of the morphological features and types of anisakids larvae eight species of marine fishes and two cephalopoda purchased in the near southern sea in Korea, were investigated and classified into the morphological characteristics of each type of the larvae, and the following results were obtained on the basis of the methods of Berland(1961), Koyama et al(1969) and Chai et al(1986). 1. Anisakis(typeⅠ) larva: The length and width of nematode are 14.2∼26.4mm and 0.22∼0.51mm respectively. The anterior region has well-developed boring tooth. Tail is 0.09∼0.12mm and the tip of tail has a globular form and well-developed a mucron. 2. Terranova (type A) larva: The length is 24.5∼34.1mm and longest among anisakids larvae. Width is 0.50-0.84mm, and intestinal cecum had reached one-third of anterior larva of ventriculus, and the worm has three lips at anterior end, and had boring tooth on the lips. The tail is 0.08∼0.12mm and has well-developed a mucron. 3. Raphidascaris spp. larva: The nematode was 8.20∼8.42mm in length and 0.21∼ 0.29mm in width. The anterior region has boring tooth. Especially, the genital organ was developed. The tail is 0.11∼0.12mm and has well-developed mucron at the tip of it. 4. Contracaecum(type A) larva: The nematode was 6.8∼9.4mm in length and 0.09∼ 0.15mm in width. The lips were depressed. The Anterior region do not have boring tooth. The tail is 0.08∼0.09mm relatively short and has about 15∼30 micro-spines and mucron at its terminal portion. 5. Contracaecum (Type A') larva: The nematode was 17.5∼24.4mm in length and 0.22∼0.27mm in width. The lips were depressed and the anterior region does not have boring tooth as the type of Contracaecum A. The tail whose length was 0.20∼0.31mm was very long and had about 7∼12 minutes spines at its terminal portion. 6. Contracaecum (Type C) larva: The worm was 13.6∼35.2mm and 0.28∼0.60mm in size, and the lips were depressed and the anterior region does not have boring tooth. The tail did not have mucron, as the type of Contracaecum A, A'. 7. Contracaecum(Type C') larva: The worm was 10.2∼14.8mm and 0.15∼0.22mm in size, and had boring tooth as the type of Contracaecum A, A' and C. The tail was 0.08∼0.09mm and relatively short. In addition, it did not have mucron at its terminal portion. 8. Contracaecum (Type D) larva: The worm was 12.0∼19.8mm and 0.16∼0.25mm in size, and had boring tooth as the type of Contracaecum C'. The tail was 0.11∼0.16 and had small mucron at its terminal portion. 9. Contrecaecum (Type D') larva: The worm was 7.10∼16.5mm and 0.14∼0.25mm in size, and had boring tooth as the type of Contracaecum C' and D. The tail was 0.11∼0.16mm, and covered with sheath, as the type of Contracaecum D but did not have a mucron.
모정욱,심운택,이태용 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.2
The purpose of this study was to investigate school children's monthly incidence rates and causes of accident. The number of studied subjects were 279 school children. The results were as follows: 1. Average monthly incidence rate of accident for male was 17.8 per 100 persons, and that of female was 12.7. That of the 6th grade was 32.7, and the 1st grade was 5.6, and March was the highest in incidence rate of studied months. 2. The accidents occured most frequently in the 6th grade and relatively low in the 1st grade. 3. The presence of parents, their occupation, and education and monthly income of household were not affected school children's accident. 4. Time required and distance from house to school were concerned to children's accident. Walking was relatively lower than other way in the way of transport from house to school. 5. The majority sites of injury were legs & arms. 6. Most of injured children treated at the medical institute.
이륙시 항공기 ENGINE 소음분포에 관한 연구 : 소형 비행기를 중심으로
李晶模 한국항공대학교 1991 論文集 Vol.29 No.-
경제발전과 GNP증가에 따라 여러 교통수단중 특유의 장점을 지닌 소형항공기의 수요가 증가 되면서 새로운 소형비행장 건설이 요구되고 있으며 이로 인하여 소형항공기의 소음영향도 새로운 문제로 부각되고 있는 추세이다. 본 연구는 비행기 소음이 Peak치를 나타내는 이륙시 엔진소음을 실측하여 활주로 부근의 소음분포를 분석 평가 하였으며 소형비행장 건설 및 운영에 필요한 소음영향평가 자료로서 도움이 될 것을 기대한다. With the increase of GNP the demand for small aircraft and the needs for small airfield increase considering small aircraft have peculiar merits. Owing to this, noise influences against small aircraft stand out in new problems recently. This paper attempt to take the accurate measurements of the engine noise levels of small airplane on the takeoff leg in which peak noises are produced. And the paper also analyzed and evaluated the distributions of engine noises made out on the basis of these measurements. It is to deal with materials for valuations of noise influences planning small airfield are being built or operated.
李晶模,朴溶寒 한국항공대학교 1985 論文集 Vol.23 No.-
Although most of the aircraft pilot understand that the accurate and practical flight performance can finally be determined by the air density they have tendency to neglect the recognition and the application of the density altitude as a measuring scale of the air density affecting directly to the actual flight performance. Probably this tendency is caused by the complexity of applying process of the D A factor for the actual flight and their general idea of thee resultant errors which would be small amount being negligible for the safety flying. This paper is to deal with examination dy reference to the applying method of the density altitude for the flight and to the anticipated errors of flight performance in relation to the computing process of the density altitude and is emphasizing the importance of density altitude for the pilot.
李明烈,朴貞淑,李柱烈,金忠模,洪石淳 조선대학교 기초과학연구소 1992 自然科學硏究 Vol.15 No.1
Actindia chinensis의 一般成分, 遊離糖 및 amino acid 組成狀態를 알아보기 위하여 HPLC 등으로 분석, 定量한 結果는 다음과 같다. 1. 粗蜜白質量은 2.77%, 炭水化物量은 11.97%이었다. 2. 遊離糖으로는 glucose, fructose, sucrose 및 maltose가 檢出되었으며 과육부에는 fructose, 껍질부에는 sucrose 및 maltose가 많이 함유되었다. 3. 과육질 및 껍질부에서 17種의 總 및 유리 amino acid이 검출되었는데 과육부에는 isoleucine 191.52mg/100g, glutamic acid 160.93mg/100g, 껍질부에는 g1utamic acid 203.36mg/100g, aspartic acid 168.46mg/100g으로 가장 많이 함유되어 있으며, 必須 아미노산 量은 껍질부가 528.23mg/100g으로 과육부 (350.90mg/loog)보다 약 1.5배 정도 많았다. 4. 遊離 아미노산 量은 과육부 (136.89mg/loog)가 껍질부 (120.55mg/100g)에 비해 다소 많았으며 他 과일에 비하여 histidine, arginine量이 많았다. Approximate compositions, and contents of free sugars and amino acids of edible and nonedidle portion in Kiwi fruit 〔Actindia chinensis planch〕were analyzed by HPLC. The results were as follows; The contents of protein and sugars in kiwi fruit were 2.77% and 11.97%, respectively. Glucose, fructose, sucrose and maltose were detected and fructose was rich in edible portion, and sucrose and maltose in nonedible portion. 17 kinds of total amino acids were detected in edible and nonedible portion. The contents of isoleucine(191.52mg/100g) and glutamic acid (160.93mg/100g) in edible portion, and glutamic acid (203.36mg/100g) and asparatic acid (168.48mg/100g) in nonedible portion were high. Total amounts of essential amino acids of nonedidle portion (523.23mg/100g) were rich than that of edible portion (350.90mg/100g). Free amino acids were contained 136.89mg/100g in edible portion and 120.55mg/100g in nonedible portion. Histidine and arginine were found in abundance, compared to other fruits (orange and strawbeery).
Rieger syndrome : 증례보고 A CASE REPORT
이홍모,김정욱,장기택,이상훈,한세현,김종철 大韓小兒齒科學會 2003 大韓小兒齒科學會誌 Vol.30 No.4
Rieger syndrome은 눈의 전안방 기형과 치아결손을 특징으로 하는 희귀한 유전질환으로 두 개안면 이상과 체성기형을 동반하기도 한다. Rieger syndrome은 상염색체 우선유전(autosomal dominant inheritance)되며, 발생빈도는 약 200,000분의 1이고, Paired-like homeodomain transcription factor2(PITX2)의 변이가 이 질환과 연관이 있는 것으로 보고되고 있다. 본 증례는 Rieger syndrome으로 진단 받은 4세 7개월 된 여아에 대한 것으로, 양안에 다동공증과 후태생환을 보이고, 측모두부계측에서 상악골 열성장이 나타났으며, 상악유측절치와 더불어 다수의 영구치 결손이 방사선 상에서 관찰되었다. 이 증례를 통하여 Rieger syndrome 환아의 구강 및 두 개안면의 소견을 관찰하고, 관련 문헌을 고찰하여 다소의 지견을 얻었기에 보고하는 바이다. Rieger syndrome is a rare, autosomal dominant gentic disorder characterized by malformation of the anterior chamber of the eye(goniodysgenesis) coincident with hypodontia. It may also be accompanied by a spectrum of dental, craniofacial and somatic anomalies. Mutations in paired-like homeodomain transcription factor2(PITX2) are associated with the syndrome, and its frequency in the general population has been estimated to be 1 : 200.000. In the present case, the patient, 4 year 7 month-old female, had posterior embryotoxon and polycoria. The maxilla was retrusive in cephalometric radiography. She had congenital missing on #52, #62 and some tooth germs of permanent tooth were not detected in panoramic radiography. The purpose of this paper is to report the dental and craniofacial findings and review the pertinent literature through this case.