KAL기 추락에 의한 대량재해의 개인식별

강신몽,이원태,고영창,최상규,김윤희,이홍석,서재관,윤중진,이혜경,최득린,김종열,윤창육,변명식,이장홍 大韓法醫學會 1991 대한법의학회지 Vol.15 No.2

Individual identification is an important part in medicolegal field especially in mass disaster. At July, 27, 1989, KAL KE-803 was crashed on landing at Tripoli International Airport, Liba. The plane was caught in fire and sixty eight Koreans were sacrified. The majority of victims were severely charred and injured. The authors examed all dead bodies and successfully identified all the cases through visual, anthropological, odontological, radiological and pathological methods including fingerprint and blood typing.

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.

한 대학 신입생의 우울수준과 관련변인에 관한 연구

이명학,남해성,손석준,이정애,김병우 대한보건협회 1994 대한보건연구 Vol.20 No.2

1994년도 한 대학 1년생을 대상으로 8개항목의 생활만족지수(LSI-W) 그리고 20개항목의 우울지수(CES-D) 및 관련변인들을 조사하여 각각의 점수와 우울증의 유병률을 계산하고 서로간의 관련성을 조사하여 다음과 같은 결과를 얻었다. 1. 생활만족지수의 평균점수는 9.98이었고 비흡연군, 비음주군, 운동을 하는 군에서 평균점수가 유의하게 높았다(p<0.01). 2. 우울지수의 평균점수는 17.2였고 여학생에서 남학생보다 유의하게 높았고, 우울증의 유병률은 19.8%이었고 여학생에서 남학생보다 유의하게 높았다(p<0.01). 3. 우울증세 고위험군과 저위험군에 있어서 건강에 대한 본인의 생각과 본인이 인지하는 체중에서 차이가 있었으며, 생활만족지수, 가족수, 체중, 신장에서 유의한 차이를 보였다(p<0.05). 4. 우울지수와 생활만족지수, 연령, 종교활동기간, 신장, 체중등과는 음의 상관을 나타내고(p<0.01), 가족수, 수면시간, 경제수준과는 양의 상관을 보였다(p<0.01). 5. CES-D에 영향을 미치는 변수를 알아보기 위한 단계적 로지스틱 회귀분석에서 생활만족도, 성별, 건강에 대한 본인의 생각, 본인이 인지하는 체중, 흡연, 음주가 CES-D에 의한 우울증 발현에 있어서의 유의한 요인으로 나타났다(p<0.05). The questionnaire survey using the Center for Epidemiological Studies-Depression Scale(CES-D) and 8-items Life Satisfaction Index Well-being(LSI-W) and other variables was conducted to determine the prevalence of depression and to identify the correlation among CES-D and related factors. Study population was the whole freshman group newly enrolled in a university. The results were as follows; 1. Mean score of LSI-W was 9.98 and that score was higher in non-smokers, non-drinkers and exercise group (p<0.01). 2. Mean score of CES-D was 17.2 and the prevalence of depression was 19.8%. And those were significantly higher in female than in male(p<0.01). 3. Perceived health status, perceived weight, LSI-W, family size, weight and height were significant variables between high and low risk group of depression(p<0.05). 4. CES-D score was negatively correlated with LSI-W, age, duration of religious life, height, weight and po-sitively correlated with family size, sleeping time and economic status(p<0.01). 5. In the regression analysis significant predictors of the depression were sex, preceived health status, weight, smoking and drinking(p<0.05).

내분비계 교란물질의 검출계를 이용한 γ-HCH의 미생물에 의한 중간대사산물에 대한 내분비계교란 활성의 평가

이행석,박주석,조은민,문명숙,太田明德,류재천 대한상하수도학회 2003 상하수도학회지 Vol.17 No.1

To develop an efficient degradation system for Endocrine disruptors (EDs), it is necessary to have a good system to evaluate rapidly and accurately endocrine-disrupting activities of suspected chemicals and their degradation products. We previously constructed a co-expression system of GAL4 DNA binding domain (DBD)-human estrogen receptorβ ligand binding domain (hERβ LBD) and Gal4p transcriptional activation domain (TAD)-co-activator SRC1 in Saccharomyces cerevisiae with a chromosome-integrated lacZ reporter gene under the control of CYC1 promoter and GAL4 binding site (Upstream Activating Sequence, UAS). Expression of this reporter gene was dependent on the presence of estrogen or endocrine disruptors in the culture medium. Furthermore, the extent of transcriptional activation by those chemicals correlated with their estrogenic activities measured by other assay systems, indicating that this assay system is efficient and reliable for measuring estrogenic activity. We applied this assay system to measure estrogenic activity of microbial degradation products of γ-hexachlorocyclohexane (γ-HCH) by Sphingomonas paucimobilis. Among the γ-HCH metabolites, 2,5-dichlorohydroquinone (2,5-DCHQ) and chlorohydroquinone (CHQ) had similar estrogenic activities to the original chemical, but hydroquinone (HQ), a metabolite at later stage, had no activity at the concentration of 10^-4M, showing the necessity of evaluation of intermediate metabolites in microbial degradation systems.

HgCdTe 제작 다이오드 어레이의 열처리에 따른 전기적 특성

이정환,권순석,김명녕,이상래,황문구 大田産業大學校 2001 한밭대학교 논문집 Vol.18 No.-

This paper is investigated on the study of uniformity improvement and electrical characteristics for the 1×128 diode array used Hg^0.7Cd^0.3Te. The electrical characteristics were measured for the device manufactured by several different annealing processes and temperatures being discrepant from existing method of annealing processes and temperatures. The results of uniformity were improved from 60∼80[%], the rate of existing uniformity, to 99[%]. The results obtained from analyzing and examining the characteristics of current-voltage(I-V) and capacitance-voltage(C-V) are following. First, the reverse current show 6[㎁] or so. It is seemed to be resulted from the decrease of direct tunneling and trap tunneling of the device. Second, when the input bias voltage is zero, the maximum value of reverse resistance show 12[GΩ], and the mean value of reverse resistance show 5[GΩ]. Third, it is shown that the voltage of the maximum value of resistance is shifted 0.1[V] to the reverse direction.

물-공기 계면에서 긴 사슬 양 말단 작용기 분자인 α,ω-13,16-Dimethyloctacosanedioate Dimethylester(C_30DME)의 거동에 관한 연구

이정근,손대원,이관수,송석호,김현명,정선호 한양대학교 자연과학연구소 2001 自然科學論文集 Vol.20 No.-

물-공기 계면에서 표면압력의 증가에 따른 C30DME 분자의 구조 변화를 살펴보았다. 표면압력(π)-표면적(A) 등온선을 통해 표면적이 줄어들 때 C30DME 분자가 선형으로부터 역 U 자형 구조로 변하는 것을 확인하였다. C30DME의 역 U 자형 구조의 형성을 확인하기 위하여 Surface Plasmon Resonance (SPR)와 ellipsometry를 이용하여 Langmuir-Blodgett (LB) film 의 두께를 측정하였고 이 두께는 C30DME 분자의 역 U 자형 구조의 높이와 일치함을 관찰하였다. 또한 Atomic Force Microscope (AFM)을 이용한 표면 거침도 측정의 결과는 선형으로부터 역 U자형 구조로의 구조적 변화가 불연속이라는 것을 보여주었다. We investigated the conformational change of C30DME molecule with an increase on surface pressure at the air-water interface. The surface pressure (π)-area (A) isotherm indicates that the structure of C30DME changed from linear to reverse U-shape as the surface area was compressed. In order to confirm the formation of reverse U-shape, we examined the thickness of Langmuir-Blodgett (LB) film by a surface plasmon resonance (SPR) and an ellipsometry. The result of surface roughness measurement using an atomic force microscope (AFM) showed that the conformational change from linear to reverse U-shape is discontinuous.

주변 토지이용을 고려한 농촌마을 소하천 표준 단면 설계 : 농촌 주민의 하천 이용 형태를 중심으로

이춘석,박명안 진주산업대학교 건설기술연구소 1998 건설기술연구소보 Vol.1 No.-

The purpose of this study was to propose standard designs for the ecological improvement of rural streams. According to the survey about ecological conditions of rural streams of 10 rural villages (sept., 1996), the streams could be classified into three divisions(upstream, inner village, downstream), and the average width of streams was 9m, and the height of banks 3.1m. The slopes of basin were 7.33%, 2.67%, 1.39% at upstream, inner village, downstream respectively. The survey about the residents' usage of stream and the preferred activities(June, 1997) showed that the streams were most frequently used for the supply of agricultural water(39%) and for the washing(15%) and for the recreation and rippling(10%), etc.. First of all, three standard plans were designed presenting upstream, inner villages, and downstream, and then three standard sections were made based on each plan. Upstream was designed to be used for the recreational activities in summer and the major stream bank materials were base rock and existing boulders with the least artificiality. As the streams in the residential area were expected to be used and visible frequently, the most facilities for the streamside activity such as waterfront, water holes, shallows, water levels, walk, etc. were concentrated in this part with some artificiality. The downstream were designed for the agricultural use such as water supply, preparation of work and some break during the work.

생쥐 대장 평활근 세포에서 내향 정류성 칼륨 전류의 특성 연구

이은주,김명,정명섭,조향훈,김기훈,하현철,김준수,최석,전제열 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Objectives: K^(+) channels play an important role in regulating cellular excitability. The aim of this study was to know whether or not inward rectifier K^(+) channel exists in colonic smooth muscle cells. Methods: Mouse colonic smooth muscle cells were isolated using collagenase, and then we recorded their membrane currents using a whole-cell patch clamp technique. Results: With 90 mM K^(+) in bath, hyperpolarization-induced inward currents from -120 mV to 20 mV with 400 ms duration at a holding potential of -10 mV showed rapid activation, inactivation and inward rectification. The inactivation showed single exponential time course. Reduction of external K^(+) to 60 mM decreased the amplitudes of the currents in whole test voltage range and shifted the reversal potential to more negative potential. The inactivation process and peak currents of hyperpolarization-induced inward currents were not affected by removing external Na^(+). External Ba^(+) blocked hyperpolarization-induced inward currents by dose-dependent manner and pure Ba^(+)-sensitive currents showed strong inward rectification. Cs^(+) also suppressed hyper- polarization-induced inward currents. Ba^(+) and Cs^(+)-induced inhibitiOn of hyperpolarization-induced inward currents was voltage-dependent, and the extent of inhibition increasing with membrane hyperpolarization. Conclusions: These results suggest that inward rectifier KU channels may exist in proximal colonic smooth muscle and may play an important role in regulating membrane potential.

RED 게이트웨이에서의 응답 메시지 처리 알고리즘

이상민,채현석,최명렬 漢陽大學校 工學技術硏究所 2001 工學技術論文集 Vol.10 No.-

본 논문에서는 RED 게이트웨이간의 전송률을 최대로 유지하며 종단에서 실제로 처리되어 전송되는 패킷의 양을 늘릴 수 있는 응답 메시지 처리 알고리즘을 제안한다. 본 논문에서 제안한 응답메시지 처리 알고리즘을 RED 게이트웨이에 적용하여 패킷의 손실을 줄이고 전송 효율을 높였으며, 모의 실험을 통해 성능의 향상을 확인하였다. 일련의 모의 실험에서는 응답메시지 처리 성능을 분석하고, 차후의 연구 방향을 제시한다. 본 논문은 네트워크 NS-2 시뮬레이터를 사용하여 다양한 TCP 버전의 조합과 RED 게이트간의 연결속도와 게이트의 개수에 변화를 주어 모의 실험 하였다. This paper proposes an act message processing algorithm to increase the throughput at the end of the telecommunication node, when it uses RED gateway to include various TCP versions with keeping the highest throughput between two RED gateways. This paper shows the results in Kbytes/s from a series of simulation experiments designed to analyze the performance of ark message processing algorithm. Using the ns-2 simulator, the simulation results have been conducted by changing the link speed between two RED gateways using the combination TCP Vegas and TCP NewReno.

造景樹木의 葉內 硼素含量分布

李在奭,崔明子,金貞淑 대구효성 가톨릭대학교 1994 연구논문집 Vol.48 No.1

The distribution of boron on 98 different species of woody landscape plants which belonged to 38 different families were investigated. The soils used were Daegu Series developed out of Residiuum of Shale which is commonly found in Bongduk-dong, Daegu City and Hayang-eup, Kyungsan-gun, Kyungpllk Province. Some of the results obtained are summerized as follows : 1. Among the tested palnts, 33 species including European holly contained comparatively ow level of boron and 53 ones such as apple tree required medium level of boron for the normal growth. On the contrary, the rest of 9 species including Manshurian fullmoon maple accumulated much high level of boron for the normal growth. 2. Among the tested plants, tree of heaven contained the highest level of boron(90.4±0.15ppm) while arrow bamboo contained the lowest one(5.3±0.79ppm) 3. No significant correlation between the single leaf area and the boron content of the leaves was recognized when the area of the single leaf is less than 100㎠ but highly significant correlation(r=0.769**) between above two characters was recognized when that is over 100㎠/leaf. 4. when the tested plants were classified by the content of boron in the leaves, the rate of plants having the contents of 5∼10ppm, 10∼20ppm, 20∼30ppm, 30∼40ppm, 40∼50ppm, 50∼60ppm, and over 60ppm were 1%, 35.8%, 29.6%, 23.5%, 5.1%, 2.0%, and 3.0% respectively. 5. No significant correlation(r=0.072) between the content of boron in the soils naturally developed out of Shale and the content of boron in the leaves tested was recognized.