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.

대한민국 자동차 번호판에서 블록 이진화 기법을 이용한 문자 인식 기법

장인태, 이슬기, 우효정, 안재형 충북대학교 컴퓨터정보통신연구소 2012 컴퓨터정보통신연구 Vol.20 No.1

In this paper, the image binarization method using standard specifications of the vehicle license plate to recognize characters on the plates is proposed. The global binarization method that had a threshold over entire image pixels cannot acuratelly binarize in case that local average brightness are varied to each plates characters regions. The proposed method uses the characters regions in the standard specifications of the korean vehicle license plates as binarization blocks. For installed cameras on national roads and parking areas, the computer simulation results showed average characters recognition rate about 5% higher than the otzu global binarization method.

Pyridostigmine과 Neostigmine의 골격근이완계 길항 효과에 관한 연구

우현제,신용섭,김태관,이정은,최세진 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.2

This present study was undertaken to observe the effects of pyridostigmine and neostigmine of heart rate and it's antagonistic effect on pancuronium in 62 patients during general anesthesia. We obserived the effect of pyridostigmine and neostigmine with atropine and glycopyrrolate of heart rate, appearance of arrhythmia, time required for returning of spontaneous breath an sustained tetanic response and effect on the amount of secretion in oral cavity and trachea. The result are as follows: 1. The incidence of bradycardia was the highest in the group of atropine and neostigmine i. v. administration together, and the lowest in the group of glycopyrrolate and pyridostigmine i. v. administration together. 2. The incidence of tachycardia was the highest in the group of atropine and pyridostigmine i. v. adminstration together, and the least in the group of glycopyrrolate and pyridostigmine i. v. administration together. 3. Among the experimental cases, only one showed arrhythmia which is PVD. 4. The time required for returning of spontaneous respiration was 4.6-6.1 minutes range in all groups. 5. The group of glycopyrrolate administrated showed the greates antisialogue effect.

축구 활동이 비만 초등학생의 혈중 지질에 미치는 영향

전태원,박익렬,엄우섭,이동기,우재홍,김경래,김은경,서한교,전병환,김광준,정진욱,박성태 서울대학교 체육연구소 2002 서울大學校 體育硏究所論集 Vol.23 No.2

The purpose of this study is to investigate the effect of Soccer playing in Plasma Lipids in Elementary Obesity Student. Subject for this study were consisted of 16 male(exercise group : 8, non-exercise group : 8), who were over 25% of body fat. Exercise group played soccer 3 times per week, one time was 90 minutes. Weight, % body fat, total cholesterol, high density lipoprotein cholesterol, low density lipoprotein cholesterol, triglyceride, c-ratio were measured at three time periods before exercise begin, and 5 and 8 weeks. The results were summarized as follow: Exercise group decreased significantly more than non-exercise group about weight, % body fat, total cholesterol, low density lipoprotein cholesterol, triglyceride, c-ratio. And Exercise group increased significantly more than non-exercise group about high density lipoprotein cholesterol. In conclusion, the regular aerobic exercise(soccer playing) for 10 weeks has great effects on control of serum lipid which is related to the increase well-being(reduced coronary heart disease, hyperlipidemia, hypertension, obesity et all.) in elementary obesity male student.

그람양성구균에 대한 Teicoplanin과 Vancomycin의 시험관내 항균력

최태열,김경숙,전용관,서일혜,김정욱,이웅수,안정열,김홍석,정재용,최효선,김덕언,유진우 대한감염학회 1994 감염 Vol.26 No.1

An increasing frequency of methicillin resistant S. aureus(MRSA), methicillin resistant coagulase negative staphylococci(MRCNS) and Enterococcal infection have been observed in recent years. Teicoplanin is a new glycopeptide antibiotic obstained from the Actinoplanes teicomycetius. The molecular structure and spectrum of antimicrobial activity of teicoplanin is simillar to those of vancomycin, and has been reported to have an excellent in vitro and in vivo effect against various gram-positive infections. Therefore, we evaluated the in vitor susceptibility of gram positive cocci, such as, S. aureus, coagulase negative Staphylococci(CNS), and Enterococci to teicoplanin and vancomycin. The total 253 strains consisted of MSSA(40), MRSA(53), MSCNS(47), MRCNS(48), and Enterococci(65). They were assayed by disc diffusion and agar dilution. During the study, 57% of S. aureus and 49% of CNS showed resistance to methicillin. The inhibitory diameter of teicoplanin was 15-20mm in MSSA, 12-19mm in MRSA, 13-24mm in MSCNS, 11-23mm in MRCNS, and 15-22mm in Enterococci respectively, and showed sensitivity in all but 8 strains(3.2%). The range of the minimum inhibitory concentration (MIC) of teicoplanin to MSSA, MRSA, MSCNS, MRCNS and Enterococci were 9.12-2.0㎍/ml, 0.25-2.0㎍/ml, & 0.25-32㎍/ml, 0.12-1.0㎍/ml respectively. One case of S. haemolyticus was resistant to teicoplanin (32㎍/ml) by the agar dilution method. Eight minor (3.2%) and one major(0.4%) error was observed when the MIC and disk diffusion data were correlated with teicoplanin. As for vancomycin the inhibitory diameter was 17-21mm in MSSA, 15-21mm in MRSA, 18-26mm in MSCNS, 18-25mm in MRCNS, and 16-22mm in Enterococci respectively. The range of the MIC of vancomycin to MSSA, MRSA, MSCNS, MRCNS, and Enterococci were 0.25-1.0㎍/ml, 0.25-4.0㎍/ml, 0.5-2.0㎍/ml and 0.5-2.0㎍/ml respectively. One minor error (0.4%) was seen with the vancomycin disk. The MIC90 of MSSA and MRSA exhibited the same results in teicoplanin (1.0㎍/ml, 1.0㎍/ml), and vancomycin(2.0㎍/ml, 2.0㎍/ml). MSCNS and MRCNS exhibited greater MIC90 with teicoplanin(4.0㎍/ml, 8.0㎍/ml) than vancomycin(2.0㎍/ml, 2.0㎍/ml). Incontrase Enterococci were more susceptible to teicoplanin(0.5㎍/ml) than to vancomucin (2.0㎍/ml). Results from this analysis indicated that both teicoplanin and vancomycin were very excellent for gram positive infections, especially those resistant to methicillin.

무선랜용 Q-대역 0.25㎛ pHEMT MMIC 저잡음증폭기 설계

최우성,이원조,권태운,최재하 울산대학교 2002 공학연구논문집 Vol.33 No.1

본 논문에서는 무선랜용 수신 시스템의 첫 단에 쓰이는 Q-대역 2단 MMIC 저잡음 증폭기를 설계하였다. 설계된 증폭기의 이득은 10.312±0.5㏈, 잡음지수는 2.677㏈이다. 입력 정재파비 VSWR_in = 1.072이고, 출력 정재파비 VSWR_out = 1.055이며, 1㏈ 이득압축점은 5.824㏈m IIP9는 13㏈m이다. 이번 저잡음 증폭기 설계에 사용된 pHEMT는 HP-EEsof사의 각각 0.25㎛×50㎛ 크기의 2-finger 루트모델이다. 제작을 위한 레이아웃은 칩사이즈가 1,800×1,500㎛이다 칩사이즈를 고려해서 바이어스딘의 λ/4 라인은 구부려서 구성하였으며 1단과 2단은 50Ω 정합을 하였다. In this paper, the design of Q-band 0.25㎛ pHEMT MMIC 2-Stage Low Noise Amplifier for Wireless LAN is discussed. The LNA has a gain of 10.312±0.5㏈ and a noise figure of 2.677㏈. An input VSWR of the LNA is 1.072 and an output VSWR of the LNA is 1.055. 1㏈ gain compression point of the LNA is 5.824㏈m and IIP of the LNA is 13㏈m. In this paper, HP EEsof's pHEMT 2-finger ROOT Model of 0.25㎛×50㎛ is used. The layout chip size for manufacturing is 1,800㎛×1,500㎛. To reduce the size, a curved shape is adapted for λ/4-line realization. The first and second stage are matched to 50Ω.

서울의 PPNG 발생 빈도(1990)

김재홍,김한중,노영석,김영태,김중환,황규홍,이정덕,백승철,김건우,조상현,김준영,김석민,김영호,김상순,이승한,김방순,전덕규,하상근 대한화학요법학회 1992 대한화학요법학회지 Vol.10 No.2

The prevalence of PPNG among pretreated gonorrhoeae cases isolates at the VD clinic of Choong-ku Public Health Center in Seoul has been studied and reported annually since 1981. In 1990, 162 strains of N.gonorrhoeae were isolated, among which 80 were PPNG. The prevalence of PPNG in Seoul showed increased tendency till 1987, thereafter, it has been stationary.

Euglena gracilis Z에 의한 CO_2 고정화

이재우,박봉선,손태일 中央大學校 食糧資源硏究所 2002 食糧資源硏究所 論文集 Vol.14 No.1

The Biological carbon dioxide fixation using microalgae has been known as an effective carbon dioxide reduction technology. With many environmental factors influencing microalgal productivity, the desirable CO^2 concentration and cultivation factors were investigated using a green algae, Euglena gracilis. It has the high protein and vitamin I to be used as fodder. In batch culture, initial pH, temperature and carbon dioxide concentration in the optimum cultivation condition were pH 3.5, 27℃ and 10%, respectively.

도시지역 한방의료이용자의 질병양상 조사연구

강영우,조태현,김병하,남철현,조남춘,안창수,이재홍 慶山大學校 保健福祉硏究所 1997 保健福祉硏究 Vol.1 No.-

To provide the basic data for improving of curative measures in oriental medicine and for developing of health education and preventive program after understanding of classification of diseases in oriental medicine users, questionnaire interview was carried out with city dwellers, over 20 years old, selected randomly in big cities from 2nd Oct. to 11th Nov. 1995. The results were summarried as follows: 1. In the general characteristics of subjects, the highest portion of each part was 61.2% of female, 25.5% of thirties, 28.5% of high school graduate, 63.3% of middle class and 11.8% of lower class in economic status. 31.9% was housewife, 73.5% was merried and 55.1%, 38.1% came from big or small cities each. 2. By 21 classification of diseases, 19.7% was blood disorders, 17.6% was pregnancy & delivery complications and 15.2% was endorine & nutritional disorders. 3. As for age 22.6% of endocrine & nutritional disorders in twenties, 20.8%, 28.1%, 27.8% of blood & defence mechanism disorders in thirties, forties, sixties each and 24.9% of pregnancy & delivery complications in fifties were the higher than the other groups. 4. By educational level, 47.8%, 30.5% of blood & defence mechanism disorders in uneducated and middle school graduate were the higher than the other groups. 5. As for occupation, 20.8%, 32.9% of blood & defence mechanism disorders in housewives and sales each, were the higher than the other groups. 6. By economic status, 20.2% of blood & defence mechanism disorders in middle and high class, were the higher than the other groups. 7. By marital status, 21.3% of endocrine & nutritional disorders in singles, 22.0%, 25.7% of blood disorders in having partners, were the higher than the other groups. 8. As for living areas, 18.2% of pregnancy & delivery complications in big city dwellers, 21.3% of endocrine & nutritional disorders in town dwellers were the higher than the other groups. The distribution of diseases in oriental medicine users wes very different by chracteristics according the results. So It's important and essential project to improve curative technics and to develop.

수치해석을 통한 오븐건조 작업에서의 칼라 강판 온도예측

이태우,이경우,최민석,이덕재 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.4

Paint coating process on steel sheet has to be carried out for producing prepainted steel sheet by continuous process. After coating process, drying processes are needed. Temperature control of oven system directly affects on the product quality, such as, a coherence of coating and state of surface. In this study, heat transfer coefficients were calculated by 3-dimensional heat flow analysis from hot wind of nozzle to steel sheet and values of PMT(Peak Metal Temperature) of steel sheets were predicted by adapting that value to 2-dimensional analysis and using the coefficients. Conditions of numerical analysis were obtained from orthogonal arrary which is known as Taguchi method. Coefficients of heat transfer coefficient equation were derived from the second order regression model. By comparing numerical analysis with experimental results, the accuracy of numerical analysis was verified. Moreover we analyzed the effect of various conditon of factors, such as velocity and thickness of steel sheet, temperature of hot wind and the type of steel sheet. (Received December 17, 2003)