서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(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 menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. 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 64.5% in 1998.

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.

연령증가에 따른 혈압요소들의 좌심실비대 및 관동맥질환과의 관련성

박재석,박창규,박미영,박재형,김용현,나진오,신성희,서순용,홍순준,박성미,임홍의,김응주,서홍석,오동주,노영무 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

치환 페나실 벤젠 슬포네이트와 N, N-디메틸 아닐린 사이의 속도론적 연구

홍성완,한광래,이준경 又石大學校 1990 論文集 Vol.12 No.-

Kinetic studies of nucleophilic substitution reactions of phenacyl. benzeneslfonates(PBS) with N, N-dimethyl anilines(DMA) were conducted by conductometric method. Hammett and Broensted values were determined, in order to examine the transition state variations caused by changes in nucleophiles, substituents and indicated a relatively advanced bond-formation in the transition state. Application of potential energy surface(PES) and quantum mechanical(QM) models of transition state characterization lead us to conclude that the reaction proceeds via associative S_N2 mechanism. It was found that reactivity-selectivity principle(RSP) and Bell-Evans principle(BEP) held within the DMA series and hence constituted a good example of a thermodynamically controlled reaction series but are violated between two different reaction series with DMA and aniline.

스쿠버 다이빙시 안전수역과 해양수역의 변화에 따른 혈중 젖산농도 및 CPK량의 변화 비교

홍성준,이상학,김민환,김기운 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

For the comparative analysis of the blood lactate concentration of scuba diver according to change from safety zone to sea and of the change of amount of CPK while scuba diving, C university measured the blood lactate concentration and amount of CPK against middle level and debutant scuba divers. As a result, the following differences ranging from 1) to 4) were found in divers by each factor. 1) The blood lactate concentration and CPK amount of clivers out of safety zone were 2.68 and 225.70 respectively. They were out of sea area 3.70 and 337.90 respectively. The change in blood lactate concentration out of safety zone was higher than out of sea area and CPK amount was found higher from safety zone than from sea area. But to find what differences between the blood lactate concentration and CPK amount between safety zone and sea area, I implemented independent T-test against average differences, the significance of blood lactate was .092 while that of CPK amount was .312. Therefore, the blood lactate concentration and CPK amount were not significant in safety zone and sea area. In other words, there is no significant differences in change of blood lactate concentration and CPK amount of clivers in change from safety zone to sea area. 2) The average blood lactate concentration and CPK amount in 30 minutes after going out of safety zone were 2.04 and 259,80 respectively and the average blood lactate concentration and CPK amount in 30 minutes after going out of sea area zone were 2.28 and 377.60 respectively. The blood lactate concentration and CPK amount during 30-min rest after going out of safety zone were found higher in sea area. But to find what differences between the blood lactate concentration and CPK amount between safety zone and sea area in 30 minutes out of waters, I implemented independent T-test against average differences, the significance of blood lactate was .592 while that of CPK amount was .307. Therefore, the blood lactate concentration and CPK amount after 30 minutes were not significant in safety zone and sea area. In other words, there is no significant differences in change of blood lactate concentration and CPK amount of divers in change from safety zone to sea area. 3) During stabilization of divers, the average blood lactate concentration and CPK amount were 2.66 and 290.80 respectively, the average blood lactate concentration and CPK amount after going out of safety zone were 2.68 and 257.70 respectively and the average blood lactate concentration and CPK amount during 30 minutes after going out of safety zone were 2.04 and 259.80 respectively and the average blood lactate concentration and CPK amount after going out of sea area were 3.70 and 377.90 respectively and the average blood lactate concentration and CPK amount during 30 minutes after going out of sea area were 2.28 and 377.60 respectively. From the above results of higher concentration and CPK of divers going out of sea area, the sea environment gives more impact on divers. 4) The conclusion of each factor and rest is as follows: The significance of blood lactate concentration and CPK amount during stabilization and out of safety zone were .961 and .666 respectively. Therefore, there is no significance in divers resting and going out of safety zone. The significance of blood lactate concentration and CPK amount during 30 minutes of rest and out of safety zone were .083 and .683 respectively. Therefore, there is no significance during 30 minutes of divers resting and going out of safety zone. The significance of blood lactate concentration and CPK amount during stabilization and out of sea area were .035 and .514 respectively. Therefore, there is no significance in clivers resting and going out of sea area. The significance of blood lactate concentration and CPK amount during 30 minutes of rest and out of sea area were .292 and .507 respectively. Therefore, there is no significance during 30 minutes of clivers resting and going out of sea area.

벼 무논골뿌림栽培時 播種期 및 立毛數가 生育 및 收量에 미치는 影響

洪性澤,朴栽成,朴成圭,李尙榮,池在浚,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This study was conducted to establish the cultural techniques of the puddled-soil drill seeding of race (Oryza sativa L.), which is one of the efficient labor saving cultural methods, in the central part of Korea. Seoanbyeo was seeded at three times from April 10 to May 20 with the 20 day interval in 1994. The number of seedling stands per m2 at each seeding date were 50, 90, 130 and 170. The tillering characteristics, lodging characters, dry matter production, yield components and yield were investigated. The number of days to the maximum tillering stage was reduced at the later seeding date. It was 70, 55 and 25 days in seedings on April 10, April 30 and May 20, respectively. The critical effective tillering stage was also shortened at the delayed seeding. The higher the number of seedling stands was, the higher number of tillers, the shorter duration to the maximum tillering stage and the earlier critical effective tillering stage were resulted. The number of tillers was higher at the earlier seeding date. The number of tillers was increased in the order of 50, 90, 130 and 170 seedling stands per m2. The ratios of effective tillers were 53, 61 and 63% at seeding on April 10, April 30 and May 20, respectively. The ratios were not significantly different at April 10. But the ratios in seeding on April 30 and May 20 were reduced as the number of seedling stands was increased. The weight of stem base related to lodging was the highest with 2.01g/10 plants in the optimum seeding on April 30, while it was 1.59g/10 plants in the late seeding on May 20. It was also decreased as the number of seedling stands was increased. The dry weights at 30 days before the heading stage were increased at the later seeding, while the dry weight at the heading stage was the highest at seeding on April 30 which is considered as the adequate seeding time. The dry weights at 30 days before the heading stage were increased as the number of seedling stands was increased and they were increased up to 130 seedling stands per m2 at the heading stage. The length of panicle exsertion was shortened at the later seeding. The length of panicle exsertion was increased up to 130 seedling stands. but it was shorter at 170 seedling stands. The heading dates were later at seeding on April 30 and May 20 than at seeding on April 10. They were not remarkedly different among seeding dates at 50 seedling stands, it was earlier at the higher number of seedling stands over 90. The number of spikelets per panicle was decreased at the higher number of seedling stands. The ratio of ripened grains was higher at earlier seeding than at later seeding. It was not significantly different among the number of seedling stands at the same seeding time. Yields at seeding on April 30, April 10 and May 20 were 644, 624 and 551kg/10a, respectively. The seeding on April 30, the optimum seeding time, resulted the highest yield. Rice quality was decreased due to the increase of the green kerneled rice as the seeding date was delayed.

음성인식을 위한 음성신호와 인식 인수의 상관 모델링에 대한 연구

홍성준 대구산업정보대학 2000 논문집 Vol.14 No.2

Speech is one of the most natural communication tools for human beings. So everyone can use this tool easily without leaning. In the future, speech will be the new man-machine interface. However in order to use speech for the new man-machine interface, we must solve many of problems on the speech recognition. So that, this paper presents a speech modelling that reconstructs its signal by using of zero crossing interval and its energy, and makes research on the characteristics of the speech features - LPC, cepstrum coefficients, and LSF coefficients, for the speech recognition applications. Experiments indicate that the modelling speech signal shows better performance than non-modelling signal on the speaker independency, noise effects, and the stationarity of speech features in syllable interval. But also it indicates that the non-modelling signal takes better performance in the boundary characteristics between each syllables.

SF-36을 이용한 농촌 노인들의 건강상태 평가

전진용,김상아,박웅섭,오미경,홍윤미 관동대학교 의과학연구소 2001 關東醫大學術誌 Vol.5 No.1

This study was conducted to understand health status by general characteristic, and to find out relationship between the general characteristics and rural elderly's health status. Health status was measured using SF-36(Medical Outcome Study Short From 36). The finding of this study were as follow; Mean scores of health status by sex were higher in male on physical function, social function and role limitation-emotion. The elderly educated more reported good health on physical function, role limitation-physical, vitality, bodily pain and general health than did the elderly educated less. The elderly who have disease reported bad health on social function, mental health and general health. Therefore we reviewed the evidence that sex, education and illness are associated with health status in the elderly, and that specific public health service that related such condition should be considered for the rural elderly.

Au를 공침한 SnO₂후막센서의 가스 감응 특성

성정훈,강대원,이윤수,임준우,홍영호,이덕동 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

High selective and sensitive thick film type methane gas sensors were fabricated and their sensing characteristics for various hydrocarbon gases were investigated. Raw material, SnO_(2)/Au, prepared by coprecipitation was even grain size. SEM, TEM, BET and XRD analyses were carried out for investigation of surface morphology and crystalline structure. The thick film devices using the above materials exhibited high sensitivity to methane gas at the operating temperature of 400°C. The sensitivity of SnO_(2)/Au+Pd thick film devices to methane gas was higher than that to the other hydrocarbon gases such as iso-butane and propane. The optimal adding amounts of Au and Pd were 1wt.% and 3wt.%, respectively. The sensitivity, S, is defined as {(R_(A)-R_(G))/R_(A)}><100, which R_(A) and R_(G) are resistance in air and that in the gas ambient, respectively.

선형예측 부호화 방법에 의한 2.4kbps 음성 데이타 감축방식

洪星埈,楊天錫 대구산업정보대학 1991 논문집 Vol.5 No.-

The LPC-10 speech data compression algorithm is implemented with computer program and invested through computer simulation. The simulation results show that the algorithm provides relatively good quality at the transmission rate of 2.4kbps. According to the investigation of the effect of channel errors on the algorithm in digital mobile radio communication, the algorithm has the good quality below the bit error rate of around 5×10^(-3).