서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1994)

김재홍,안진균,정성재,김영태,김중환,김시영,이석종,이홍렬,서호석,김경훈,권혁진,정우권,고우석,이용석,안필수,오준규,오용섭 대한화학요법학회 1996 대한화학요법학회지 Vol.14 No.1

Background : In recent years gonorrhoea has been panendemic and remains one of the most common Sexually Transmitted Diseases in the world, especially in developing countries. Objective & Method : For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria Gonorrhoeae(PPNG), Ive have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1994, 168 strains of N. gonorrhoeae were isolated, among which 109 (64,9% ) were PPNG. Conclustion : Our results suggests that the prevalence of PPNG in Seoul is still increasing.

활동혈압에 의한 Cicletanine의 강압효과 판정

정태기,김현대,류재춘,최석구,유원상 인제대학교 1993 仁濟醫學 Vol.14 No.4

Prostaglandin 합성을 촉진하는 새로운 강압약인 cicletanine의 강압효과를 진료실 혈압과 24시간 활동혈압으로 평가했을 때 상당한 차이를 보여 그 이유를 검토해 보았다. To evaluate antihypertensive effect of cicletanine with both clinic and ambulatory blood pressure monitoring, 10 male hypertensive patients were administered cicletanine, a new antihypertensive stimulating prostaglandin synthesis, in 100∼200 mg daily for 12 weeks. The following were the results. 1.Mean of clinic BP decreased from 161/98 mmHg to 153/98 mmHg. 2.Mean of ambulatory BP changed from 140/91 mmHg to 153/99 mmHg. 3.Side reactions were mild, namely indigestion and constipation. 4.Discrepancy between clinic and ambulatory BP were discussed. In conclusion cicletanine revealed slight antihypertensive effect with clinic blood pressure, but failed to confirm it with ambulatory blood pressure.

RAPD와 핵 리보솜 DNA ITS2 염기서열에 의한 한국산 전나무속 식물의 유전적 변이 및 계통유전학적 분석

정용환,한상현,오유성,고미희,고석찬,김문홍,오문유 濟州大學校 基礎科學硏究所 2001 基礎科學硏究 Vol.14 No.2

We analyzed the genetic variation and phylogenetic relationship among fourteen taxa of GenusAbies distributed in Korea using random amplified polymorphic DNA (RAPD) and internal transcribed spacer (ITS) 2 sequences of the nuclear ribosomal DNA (rDNA). RAPDs were used for identification of selected taxa by amplification using single 10-mer primers of arbitrary sequence. Fourteen taxa were clearly classified with 10 arbitrary primers, which generated 102 useful polymorphic bands that were evaluated according to the presence or absence of the fragments of equal size. The genetic distance between A. koreana for. chlorocarpa and A. koreana for. rubrocarpa was 0.127, showing the closest among any other pairs. By comparing the base sequences in the ITS2 region of the nuclear rDNA, genetic relationship was assesed among selected taxa. It showed twenty six sites of point mutation (base substitution) in 243 base pairs (bp) of ITS2 region. The G+C contents of ITS2 region were ranged from 58.3% to 61.7%. The value of nucleotide divergence among selected taxa was ranged from 0.4% to 9.8%. These results showed that RAPD and ITS2 sequence analysis was a useful tool for elucidating phylogenetic relationship and selection of specific marker in Abies species.

體型과 有·無酸素的 運動能力에 關한 硏究

鄭石珍,金武泳 全北大學校 敎育大學院 1982 敎育論叢 Vol.2 No.-

Fifty randomly sampled male students (mean age 19 years) at Jeonbug National University in Jeonju city served as subjects in this study. These students were divided into three groups of 5 endomorphs, 36 mesomorphs, 9 ectomorphs according to Heath-Carter's anthropometric method. The one hundred meter dash and 2,000 meter distance run were adopted to measure aerobic and anaerobic motor ability respectively. To determinethe relationship of somatotype to motor ability and the differences of motor ability among somatotype groups, statistical analysis were used. The findings of this study are as follows: 1. The mean somatotype of college freshman was ectomesomorph. 2. Low realtionships existed between the first components of somatotype and aerobic and anaerobic motor ability. 3. The second and the third somatotype components were not related to erobic and auaerobic motor ability. 4. There were significant differences between aerobic and anearobic motor ability among somatotype groups. 5. Mesomorphs were superior to other endomorphs and ectomorphs in track records.

韓國에 있어서의 먼지진드기에 關한 硏究

康晳榮,朱鼎均 대한의학협회 1975 대한의학협회지 Vol.18 No.12

보일러 효율향상을 위한 초음파 발생장치의 개발

박정일,이석규,이호균,박준호 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1

This paper describes the development of ultrasonic generator to enhance the combustion efficiency of the domestic boiler based on the cavitation property of ultrasonic wave. The following procedure shows the proposed energy-saving-precess of the boiler. (1) vibrate the BLT(Bolted Langevin Transducer) type ultrasonic vibrator. (2) amplify the vibrating energy using resonance principle through the designed hem installed before the injection nozzle. The proposed ultrasonic device is designed to produce smaller fuel particles to be mixed homogeneously with air, which finally reduces the fuel consumption of the boiler.

벼의 혹명나방의 성 유인 물질의 합성과 생물활성시험

강석구,박정민,이정운,고현관 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.2

벼의 혹명나방의 성 유인 물질인 (Z)-13-옥타데센-1-올 아세테이트를 새로운 방법으로 합성하였다. 즉, 1-헥신의 리튬 음이온을 보호된 12-브로모-1-도데칸을 THP 에테르와 반응시켜, 13-옥타데신-1-올 THP에테르를 만든후 Lindlar 촉매에 의한 수소화 반응을 시켜 (Z)-13-옥타데센-1-올 THP에테르를 얻는다. 산촉매하에서 보호기를 제거한 후 피리딘 용매하에서 무수아세트산을 반응시켜 최종 생성물인 (Z)-13-옥타데센-1-올 아세테이트를 좋은 수율로 얻었다. 농촌진흥청의 곤충과와 공동으로 상기에서 합성된 성 유인 물질을 이용하여 혹명 나방의 숫컷에 대한 성 유인 효과를 실험해본 결과 성 유인 작용이 있는 것으로 나타났다. A new method is described for the synthesis of (Z)-13-octadecen-1-ol acetate(1), the sex pheromone of the Rice Leaf Folder moth. Lithium acetylide of 1-hexyne was alkylated with 12-bromo-1-dodecanol THP ether. 13-Octadecyn-1-ol THP ether was stereoselectively reduced over Lindlar catalyst(Pd/BaSO_4) to give (Z)-13-octadecen-1-ol THP ether. (Z)-13-octadecen-1-ol THP ether was deprotected and acetylated with acetic anhydride and pyridine to afford the final product, (Z)-13-octadecen-1-ol acetate. Biological activity test of the synthetic compound, (Z)-13-octadecen-1-ol acetate was tested in the field using polyethylene capsules as containers. The numbers of moths trapped with pheromone vials were counted.

자이로 안정화 플랫폼의 정밀제어를 위한 적응 마찰 보상

윤석영,박정일 嶺南大學校 工業技術硏究所 1997 工業技術硏究所論文集 Vol.25 No.1

This paper presents a new adaptive friction compensation technique for stabilized platform of a first order plant with nonlinear friction. Nonlinear friction torque is a major source of tracking and stabilization error in precision pointing servo systems. The proposed compensator is composed of nonlinear feedback controller and reference model of a plant without torque friction. Gains of friction compensator are adaptively adjusted to variation of the friction torque of plant. Simulation result shows that the proposed compensator can significantly reduce the nonlinear factors.

해녀콩(Canavalia lineata)의 자엽에서 Concanavalin A의 특성 및 양적 변화

고석찬,허인옥,고정군 제주대학교 1993 논문집 Vol.37 No.-

. The properties of concanavalin A(Con A) was investigated in the mature seeds and the quantitative changes of Con A was studied in the cotyledons during germination and growth of Canavalia lineata. Con A was isolated from the crude extract by Sephadex G-50 in mature seeds and the isolated Con A was separated as four subunits with molecular weights of 30 kD, 21 kD, 17 kD and 11 kD by SDS-PAGE, but Con A subunits with 21 kD, 17k/d and 11kF did not have immunoaffinity for 30kD subunit. About 75㎍ of Con A agglutinated 50μ1 of 1% human erythrocytes and Con A was bound to horseradish peroxidase. Con A subunit with 30kD decreased rapidly 8 days after sowing and the subunits with 17 kD and 11kD decreased remarkably 12 days after sowing, indicating that Con A is hydrolyzed by proteases at late stage of germination.

한글 처리를 위한 文字多重防送 시스템의 說計에 관한 硏究

金正錫,金容得 亞洲大學校 1986 論文集 Vol.9 No.-

In this paper, we studied the design of the Teletext system which was used for the process of the Hangul in Korean broadcasting system. At present Teletext system, the Hangul has been processed using DRCS, but in this study we used the Hangul synthesis program for the saving of the TV display time of data and the memory size.