서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)

김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3

Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we 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 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

Immobilization with Ketamine HCI and Tiletamine-Zolazepam in Cynomolgus Monkeys

Myung-cheol Kim,Sung-hyeok Hong,Soo-jin Lee,Young-suk Kim,Jae-il Lee 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

with Ketamine HCl and Tiletamine-Zolazepam in Cynomolgus MonkeysJae-il Lee, Sung-hyeok Hong, Soo-jin Lee, Young-suk Kim and Myung-cheol Kim*Laboratory of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, Daejeon 305-764, KoreaReceived March 4, 2003 / Accepted July 2, 2003J. Vet. Sci. (2003), 4(2), 187-191JOURNAL OFVeterinaryScience*Corresponding author: Myung-cheol Kim Laboratory of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, Daejeon 305-764, Korea Tel: +82-42-821-6757, Fax: +82-42-822-4216 E-mail: mckim@cnu.ac.kr

TDMA 셀룰라 시스템에서 개별-탭 계수를 이용한 적응 등화기에 관한 연구

홍성수,박래수,한현택,김학춘,정찬주,나상동 조선대학교 동력자원연구소 1995 動力資源硏究所誌 Vol.17 No.1

Demodulation wants to adaptive equalizer to minimize interference of intersymbol which generate in multipath fading channel results from signal time and variety multi propagation through channel in digital radio network systems. Therefore using transition ratio of transfer and receiver system and the number of forward and backward using existing individual taps, we study improvement algorithms which generated bit error ratio by signal in frequence select fading. We analysis and compare linear equalizer and decision feedback nonlinear equalizer. Proposed algorithm is more efficent in fading environment when compared of step size by channel character which estimated existing least square and ITLMS algorithm. In this paper, using ITLMS algorithm by decision feedback BER is reduced for intersymbol interference by narrowband TDMA multipath fading in invironment without individual tap weight overlay.

대학생들의 氣에 대한 의식 조사 연구

홍성균,이성수,안규동,이병국 순천향대학교 산업의학연구소 2001 순천향산업의학 Vol.7 No.1

Ki is emerging and getting popular as a new alternative therapy in new millenium. The purpose of this study was to investigate the understanding and experience of the Ki therapy for college students. 320(Male=138, Female=182) students were participate in this study. Study subjects were answered with prepared 8 questions for their personal opinion and experience about Ki therapy. Study variables about personal information such as sex, blood type, religion, health status, personality, parent's religion, parent' occupation and parent educational level were also collected. The results of this study were as follows; 1 Among all study students (n=320), 89% of students answered positively in the existence of Ki, whereas only 11% answered negatively. 2. Among all study students (n=320), 13% (n=41) of students had a chance to have a Ki therapy and among 41 students 93% of them had experienced real Ki in any kind of form. 3. Among 41 Ki experienced students, 32% of students felt a feeling of floating and flying, 25% of students felt a feeling of pulling from the back and 21% of students felt a feeling of warming and comfortable, 10% of students felt refreshment and 5% of students felt a feeling of dizziness, whereas only 7% of students did not feel anything from Ki therapy. 4. While 53% of students among 41 Ki experienced students experienced their Ki in Ki training center, 31% and 6% of students experienced in college or university and other place, respectively. 5. Among all study students, 89% of students thought that Ki therapy was useful and wanted to have Ki therapy in case of medical attention, whereas only 11 % of students did not want Ki therapy. 6. Among study students with positive thinking about Ki therapy, 24% and 23% of students thought Ki therapy useful for (endocrine and skin diseases) and chronic adult diseases such as hypertension, cardiac disease, diabetes and obesity, respectively, whereas 21% and 18% of study students thought Ki therapy useful for neuropsychiatric disease and digestive diseases, respectively. 7. Regarding to the reason of attraction of Ki therapy compared with other treatment methods, 51% of students answered that Ki therapy gave comfortable and easiness to mind and 42% of students answered that it did not need any kind of injection or medicine.

고출력 펄스 레이저로 증착된 유기필름

홍진수,채희백,안성기,박해윤 순천향대학교 기초과학연구소 2001 순천향자연과학연구 논문집 Vol.7 No.2

유기발광 응용에 성공적으로 사용되어 새로운 물질을 개발할 때 기준으로 사용되는 Alq_3와 TPD필름을 기존의 증착법(열증착법과 스핀코터 기술)을 대체할 수 있는 고출력펄스레이저로 합성하였다. 펠릿 타겟은Q-스위칭 Nd:YAG 레이저의 532 nm와 355 nm를 사용하여 2&10^-6 Torr압력 하에서 용발시킨다. 슬라이드 유리 위에 증착된 필름은 유기발광 디바이스에 사용될 가능성이 있는지 알기 위해 다음과 같은 조사를 하였다: PL,AFM, 흡수 스펙트라, XRD. 355 nm 레이저로 유기필름을 증착하면 532 nm 경우의 필름보다 결합이 적고, 특히 열증착 필름보다 스트레스를 덜 받는다는 사실을 알 수 있다. 또한 타겟의 구조가 Alq_3 다를지라도 레이저 증착법으로 합성된 Alq_3 필름은 열증착과 동일한 구조를 갖는다는 사실을 알 수 있다. 어느 레이저를 사용하건 증착된 필름은 결정구조를 확인할 수 없을 정도로 비정질을 이룬다는 사실을 알 수 있다.

자동차 공조용 핀형 열교환기의 성능특성에 관한 연구

홍경한,전상신,이승재,박찬수,권일욱,김재열,김병철,하옥남 한국공작기계학회 2004 한국생산제조학회지 Vol.13 No.4

Fin-tube type(Fin-type) heat exchanger has been tested in order to replace the heat exchanger of parallel flow type(P.F-type) which is now widly used in automobile air conditioning system. The following conclusions are drawn by the comparison of the characteristics of the heat exchangers. Evaporator and condenser capacities and COP(Coefficience of performance) were varied as with the compressor speed, outdoor air temperature and air flow rate changed, which much influenced on the characteristics of the air conditioning system. Evaporator and condenser capacities were increased with increasing compressor speed and outdoor air temperature. Evaporator and condenser pressures of Fin- type were decreased by 7% and 5% respectively compared with those of P.F-type. The COP of Fin-type was decreased with increasing outdoor air temperature and compressor speed. The COP of P.F-type was decreased by 14% compared with that of Fin-type.

환경친화적 물류활동이 물류관리 성과에 미치는 영향

홍상태,강경식,김현수 韓國海運物流學會 2006 해운물류연구 Vol.48 No.-

兒童行動目錄(CBCL)에 의한 國民學生의 行動問題 調査

홍강의,송혜양,김중술,홍경자,박성수 大韓神經精神醫學會 1988 신경정신의학 Vol.27 No.2

This is an epidemiological study of emotional/behavior problems in Korean elementary school children(total 2,399 : 1.236 boys, 1,163 girls) by empolying Children's Behavior Check List(CBCL) developed by Achenbach and Edelbrock(1983), to which 3 problem items were added for this study. A test-retest reliability of CBCL was was assessed by computing the Spearman-Browm correlation and the average correlation among items was. 72. The interparent agreeement was also assessed and the average correaltion between mother and father was. 62. The study subjects were drawm by stratified sampling from 5 schools in Korea ; 3 schools (A, B, C) from Seoul, one school(D) from a medium size city one school (E) from a rural town. School C is located in upper/middle-upper class residential area, School A and D in middle class, and School B and E in lower-middle/lower class. The present paper reports the prevalence of behavioral/emotional problems in relation to sex, grade, locality and socioeconomic variables. Some of the major findings were as follows ; 1) The mean total problem score excluding 3 additional items was 27.28 and did not differ significanthy according to sex and locality(Seoul vs non-Seoul), However, the mean total problem scores were significanthy different from school to school. The lowest score was observed in children of School C(22.15), higher scores for School B(30.89) and E(30.64) and in-between scores for the School A(27.58) and D(25.47). Father's education also had significant effect on the total problem scores : 31.46 for elementary of less 27.79 for middle and high school and 23.05 for college or more. As for to the grade, mean total score was lowest for the first graders(22.12), increasing up until 4th grade(29.83), then decreasing for 5th graders(26.81) and then relatively high score for the 6th graders(29.81). 2) Examination of each 122 problem items revealed that prevalence rate ranged from 2.1% to 61.7% : less than 5% for 13% items, 5-10% for 18 items, 10-20% for 31 items, 20-30% for 25 items, 30-40% for 15 items, 40-50% for 13 items, more than 50% for 7 items. Although sex did not make any difference in total problem scores, examination of the prevalence of each item revealed that 47 problem items were significanthy different between sexes : 26 items were more prevalent in boys and 21 items in girls. The items more prevalent for boys were externalizing problems such as hyperkinetic, aggressive and other behaviors and 21 items, more prevalent for girls were internalizing problems such as emotional and psychosomatic problems. School grade had significant effect in 47 items, only 3 of which showed lower prevalence in the younger children and the prevalence of 39 items were higher in older children. Significant differences were observed in 83 items, and 94 items, respectively according to school and father's education that could be considered to reflect socioeconomic status and it was reavealed that the lower the status, the higher the prevalence in most items. Items more common in upper class tend to be more anxiety-tension related(internalizing) and items more common in lower class tend to be more aggressive, hyperactive and other behavioval problems(externalizing). 3) Brief cross-cultural comparisons between the current study and other studies reported in the literature revealed major differences in several areas. The total problem score for Korean children was much higher than those of American and Dutch children, but lower than those of Canada and Chile. Although most of other studies reported higher total problem scores for boys, than for girls there was no sex difference in total problem score for Korean children. This was reflected in the finding of an almost equal numbers of items(26 for boys, 21 for girls) being more common than the other sex. Analyses by grade(age) also indicate major differences between Korean and American-Dutch children ; In contrast to the finding that total problem score was higher and larger number of items were more common for younger children in American and Dutch studies, they were higher for older children in Korean study. Socioeconomic variables seems to exert far more significant effect on the total score and the prevalence of each items in Korean study, when compared with American and Dutch studies. Further analyses of the data including a comparison with a clinic sample are deferred to another paper and so are the factor analysis results of 122 items into emotional/behavioral syndromes.

鮟鱇網 漁具漁法의 改良에 關한 硏究 Ⅴ : 展開帆의 性能

洪聖根,宋之浩,趙鳳坤,朴鍾洙 군산대학교 1981 群山水産專門大學 硏究報告 Vol.15 No.1

We have been developed improved stow net and operated with it in the field. In order to study on the efficiency of otter sail of the improved stow net, we made a model experiment in a circular water tank. The findings are as follows. 1.In proportion to increase water velocity, the height of canvas o.s get lower, the decided fromula is obtained as h(%) = 77.7v-0.087 2.Resistance of otter sail is higher than board type. The hydrodynamic pressure is not perpendicular to the o.s, but inclination backward. 3.The decided formula of developing force, and resistance of otter sail is obtained as table 3. 4.Developing force is 15 to 25% of all resistance of fishing gear, resistance of otter sail is 12-18% and hydrodynamic efficiency is about 1.35. 5.Center of hydrodynamic pressure is 0.38 from the fore edge of otter sail and it may use Helmholtz's formula as it is. 6.The most effective angle of attack is about 26˚, the shearing coefficient at the time is 0.7 and the drag coefficient is 0.5. 7.To increase or decrease the buoyancy and weight of otter sail have not influenced distinctly. 8.Aspect ratio is the most effective in 2.5. 9.The joining position of fore bridles have not influenced on the efficiency of otter sail.