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.

複合生藥製劑의 止血作用및 摘出子官筋에 미치는 影響(第4) : 壽脾煎 및 歸脾양에 대하여 On Soo-Bi-Jeon and Kwi-Bi-Tang

殷載淳,李東熙,黃甲洙 又石大學校 1990 論文集 Vol.12 No.-

These experiments were conducted to investigate the pharmacological difference between Soo-Bi-Jeon and Kwi-Bi-Tang extract,, clinically used in gynecology, on the hemostasis and the contractile force of the isolated uterine muscle. For this purpose, the effects of the extracts on the bleeding time in mouse tail and prothrombin time in vitro were estimated. Forthermore, its activity on the isolated uterine muscle in rats were investigated. The results obtained were as following; The bleeding time and prothrombin time were significantly shortened compared with the control group in all samples, The uterotonic action produced by Kwi-Bi-Tang(Sample II), Sample III and IV (the same component crude drugs between not blocked by atropine (10^(-7)M) and cyproheptadine (10^(-7)M). but inlhibited by pretreatment of verapamil (10^(-7)M). On the oter hand, Soo-Bi-Jeon(Sample I) extract relaxed the uterine muscle.

전형적인 DISIDA scan 소견의 Rotor 증후군 1예

황의태,염동한,권지혜,임종주,최창수,김태현,김학철 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2

만성의 비용혈성 직접형 고빌리루빈혈증은 Rotor 증후군과 Dubin-Johnson 증후군의 특징적인 소견으로, Rotor 증후군은 드문 양성 유전성 질환이며, Dubin-Johnson 증후군과 감별을 필요로 한다. 본 저자들은 황달을 주소로 내원한 26세 남자 환자에서 고빌리루빈혈증에 대한 검사를 시행하여 담도폐쇄 소견없이 간담도 스캔상 전형적인 Rotor 증후군의 소견 즉, 강한 심장 배후방사능이 지속되면서, 간담도계의 조영은 지연 촬영에서도 관찰되지 않으며 신장으로의 배설이 계속 관찰되는 특징적인 소견과 정상 간조직 검사 결과로 Rotor 증후군으로 진단한 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Chronic nonhemolytic conjugated hyperbilirubinemia characterizes both Rotor and Dubin-Johnson syndromes. Rotor syndrome is a rare, benign familial disorder and needs to be differentiated from Dubin-Johnson syndrome. Cholescintigraphy is a simple and informative procedure for the diagnosis, which can differentiate Rotor syndrome from Dubin-Johnson syndrome. A 26-year-old man was admitted due to asymptomatic persistent jaundice. Physical examination revealed icteric sclera without hepatosplenomegaly. Laboratory findings showed increased serum bilirubin with direct bilirubinemia. Markedly decreased hepatic uptake and poor visualization of the gallbladder and biliary tract were shown in ^(99m)Tc-DISIDA scan. Histology of the liver showed no diagnostic abnormality without pigmentation. But, we report a case of Rotor syndrome that showed characteristic cholescintigraphic findings with normal urinary total coproporphyrin excretion.

영도구 자원봉사활동 활성화 방안 연구

류황건,김수정,이동은 고신대학교 영도발전연구소 2003 영도연구 Vol.5 No.-

The importance of volunteering service activity has greatly come to the front as a value to comprehensive politics, economy, society and culture and supplement. On 'the year of world volunteers', the organized 'Korea Commission' is in active service, and ahead of the 2002 Korean and Japanese World Cup, many efforts are being made for enacting 'the Support Law of Volunteering Service Activity' while the boom of volunteering activity is formed. The purpose of this study was to improve the volunteer activities in Yeongdo-Gu, Busan. The surveys were conducted by nongovernment organizations, religious organizations, elementary schools, middle schools, high schools, universities and individual volunteers. The statistical analysis was used descriptive statistics by using SAS 10.2 program. The results of these surveys are summarized as follows: First,a membership of Yeongdo-Gu Volunteering Service Center established in 1997 is 1,277(man 634, woman 643) and its roles are to network with welfare facilities, to enhance the participating rate of citizens, and to educate volunteers and so forth. Second, as a result of individual volunteers survey, the subject of analysis were a total 64 cases of 45(70.3%) male and 19(29.7) female, their occupations are students 32(50.8%), housekeeper 13(20.6%). Third, Volunteers were participating in various fields of volunteer including social welfare, environment, transportation, health, culture and art. Thus operation plans to activate Yeongdo-Gu Volunteer activities are proposed as follows. First, it is necessary for assurance of volunteering resource in community and volunteering network construction for efficiency management. Second, it is also necessary for assurance of training program for volunteer.

관개수원에 따른 논에서의 영양물질 배출 특성

황하선,공동수,신동석,전지홍 한국물환경학회 2004 한국물환경학회지 Vol.20 No.6

Field experimental study was performed to examine characteristics of nutrient export from paddy rice fields with irrigation practices. Experimental fields with surface-water and ground-water irrigation were monitored and analyzed during rice culture period. The water balance showed that outflow generally balanced the inflow showing that about half (58∼68%) of total outflow was lost by surface drainage. Water and nutrient export are more in surface-water irrigation paddy than in ground-water irrigation paddy. The reasons might be more irrigation water available and easy to use in surface-water irrigation. If irrigation water reduced, it could result in reduction of nutrient export in paddy rice fields, which can save water and protect water quality. However, deviation from conventional standard practices might affect the rice yield and further investigations are necessary.

경상분지 남동부에 분포하는 화강암질암의 광물학적 특징

황병훈,이준동,양경희,옥수석 한국광물학회 2004 광물과 암석 (J.Miner.Soc.Korea) Vol.17 No.4

경상분지 남동부에 분포하는 화강암질암은 야외산상 및 암석기재적 특징에 따라 크게 세 그룹으로 나눌 수가 있다. 즉, 그룹Ⅰ은 마그마혼합의 영향을 받은 암체로 염기성 미립 포유암 및 염기성광물 집합체를 다양하게 함유한다. 그룹Ⅱ는 낮은 압력하에서 형성된 천소관입암의 특징을 나타내며, 그룹Ⅲ은 A-형 화강암류의 특징을 보인다. 화강암질암의 광물학적 특징을 각 광물에 대하여 암상별로 살펴본 결과, 그룹에 따라 장석의 용리온토 및 흑운모의 성분 등에서 비교적 체계적인 성분변화를 보여주었다. 각섬석의 경우, 그룹Ⅰ의 암상들은 칼식-각섬석 영역에 속하며 각섬석 지압계에 의한 추정압력은 0.4~2.8 kb에 해당되었다. 그룹Ⅱ에서는 각섬석이 거의 산출되지 않았고, 그룹 Ⅲ의 각섬석은 알칼리-각섬석 영역의 리베카이트에 해당되었다. 흑운모의 화학조성은 비교적 그룹별로 군집을 잘 이루며, 그룹Ⅰ에서부터 그룹Ⅲ의 철질-앤나이트까지 연속적인 변화양상을 보여주었다. 사장석은 지역 및 암상별로 뚜렷한 차이를 나타내지 않으며, 대체로 알바이트, 올리고클레이스, 그리고 안데신의 영역에 해당된다. 그룹별로 퍼타이트 지온계에 의한 용리 온도를 검토한 결과, 그룹Ⅰ은 대체로 300~400℃ 정도이며, 그룹Ⅱ의 등립질화강암과 그룹Ⅲ의 알칼리장석화강암은 500~600℃ 정도로 높게 나타났다. Granitic rocks in the southeastern Gyeongsang. Basin can be classified into three groups. The group Ⅰ contains various mafic microgranular enclave (MME) and/or mafic clot which implies magma mixing or mingling. The group Ⅱ show the feature of shallow depth emplacement at low pressure, and the group Ⅲ is characterized by A-type granite implying extensional tectonic environment. Mineralogical characteristics of the granitic rocks have showed systematic variations in perthite exsolution temperatures and biotite compositions according to their rock facies, although they do not show any distinctively different trend in geography and textures or rock facies. Amphiboles from Group Ⅰ are calcic-amphibole and they were formed at 0.4~2.8 kb in pressure based on the amphibole geobarometry. Amphiboles from group Ⅲ are riebeckite, whileas amphiboles were not observed in Group Ⅱ The chemical composition of biotite defined in clusters showing a continuous spectrum between group Ⅰ to ferric-annite of group Ⅲ. The composition of plagioclase generally plotted in albite, oligoclase, and andesine area without any distinctive differences among their geography or rock facies. The exsolution temperatures by perthite geothermometry are calculated as 300~400℃ in Group Ⅰ, and 500~600℃ in equigranular granite of group Ⅱ and alkali-feldspar granite of group Ⅲ.

누설전류 특성이 향상된 다결정 실리콘 박막 트랜지스터의 제작 및 특성에 관한 연구

황한욱,황성수,김동진,김용상 명지대학교 대학원 1997 대학원논문집 Vol.1 No.-

We have fabricated a LDD structured polysilicon thin film transistor with low leakge current and the optimized LDD length has been obtained. The device performance is improved by hydrogen passivation process. The on/off current ratio of poly-Si TFT's with 0.5 ㎛ and 1.0 ㎛ LDD length is much higher than that of conventional structured device due the decrease of leakage current. The optimized LDD length may be between 0.5 ㎛ and 1.0 ㎛ from the experimental data such as on/off current ratio, threshold voltage and hydrogenation effect.

중등학교 평준화 정책과 과열 과외

황수연,이동직 경성대학교 2000 論文集 Vol.21 No.2

The secondary school equalization policy in Korea was initially adopted to curb excessive out-of-school studies of the junior and senior high school students. It failed to accomplish its goal in this regard, however Rather, that policy exacerbated the excessiveness of out-of-school studies. We explain why in this paper.

반사형 마이크로 디스플레이 액정 내 이온의 움직임과 DC 오프셋 전압에 미치는 영향

황성희,김강백,신동수 한양대학교 이학기술연구소 2006 이학기술논문지 Vol.9 No.-

반사형 마이크로 디스플레이인 liquid crystal on Si (LCoS) cell 내에는 전극으로 쓰이는 Al 과 ITO 사이의 일함수 차이에 의해 built-in voltage가 존재한다. built-in voltage는 flicker, image sticking 현상 등을 야기시키므로, 이를 상쇄키기 위하여 DC offset voltage를 가해주어야 한다. liquid crystal (LC) 내부의 이온이 전기장에 따라 운동하며, 시간이 지남에 따라 이온의 농도도 변화하기 때문에 DC offset voltage는 시간에 따라 변화시켜야 한다. 이번 논문에서는 이온의 움직임과 charge screening 효과에 따른 DC offset voltage의 변화를 시간의 함수로 측정하였다. The built-in voltage exists in the reflective liquid crystal on Si (LCoS) cell due to the work-function difference between the Al and ITO layers. Since the built-in voltage can cause flicker and image sticking phenomena, DC offset voltage should be applied to cancel it. As ions in the liquid crystal (LC) cell migrate under the electric field and the ion concentration itself varies with time, the DC offset voltage needs to be changed over time. In this paper, we present the change of the DC offset voltage as a function of time, which is caused by the ion motion and the charge screening effect.

순차적으로 도우핑한 드레인을 가지는 다결정 실리콘 박막 트랜지스터의 특성 및 수소화 효과

황성수,김동진,황한욱,김용상 명지대학교 대학원 1997 대학원논문집 Vol.2 No.-

We have fabricated a novel gradually doped drain(GDD) structured poly-Si thin-film transistor. The GDD poly-Si TFTs reduce a fabrication process step, compared with the conventional LDD poly-Si TFT. without LDD implant by employing taper etched Si0_2 film instead of LDD implantation mask. The leakage current of GDD device is reduced two orders of magnitude from 21.52×10 exp (-9) A to 0.14×10 exp (-9) A in OFF state while keeping the ON current to be almost identical to that of the non-LDD poly-Si TFT's After 5 hours hydrogen passivation, the ON/OFF current ratio is increased by four times of magnitude, and the device characteristics, such as threshold voltage, subthreshold slope and leakage current, are improved remarkably.