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      • KCI등재

        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.

      • 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.

      • KCI등재

        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.

      • 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.

      • 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.

      • 회맹장 판막에 발생한 아니사키스증 1례

        이재익,박정하,김준영,조영완,진한영,강명주,정은욱,박석주,양성연 인제대학교 2006 仁濟醫學 Vol.27 No.-

        Anisakiasis refers to parasitic infestation by nematode larvae that belongs to the subfamily Anisakinae, and this condition is seen in people who eat inadequately prepared or raw salt-water fish. While gastric anisakiasis is commonly diagnosed by endoscopic technique, intestinal anisakiasis is rare because it is less common and the clinical and radiologic features are poorly understood. The authors report a case of human anisakiasis involving the ileocecal valve in 62-year-old man who had the history of eating raw cuttlefish.

      • 음식물쓰레기 관리의 최적화 방안 연구 : 창원, 마산, 진해시를 중심으로 Focused on Changwon, Masan, Jinhae City

        이명희,박증석,김종오,백병천 國立 麗水大學校 環境問題硏究所 1998 環境硏究論文集 Vol.1 No.-

        Limited landfill area and finance as well as a huge generation of waste, have called for systematic approaches towards potential cost savings. In this study, the management system of food wastes generated from the residential and commercial sources was considered in three citied; Changwon, Masan, and Jinhae city. Total thirteen alternatives were established and compared by applying the WRAP (Waste Resource Allocation Program). The following results were obtained: 1. While relatively small amounts were generated form the commercial sources such as cafeteria, restaurants, and market facilities, almost 80% of food wastes were generated from the residential sources. 2. Unit costs for food waste management in three cities were different according to their present situation, and the highest cost appeared in Jinhae city due to the most expensive construction of coastal landfill site. 3. Considering proper revenue, the whole conversion of food waste into animal feed was selected as the optimal alternative and represented 60% to 74% of management cost of the whole landfill alternative in all cities. Comparing the other alternatives, composting of food waste was more economical than the landfill alternative and the incineration was the most expensive alternative.

      • 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.

      • 네트워크 및 TCP 분석을 통한 TCP 공정성의 향상

        이정재,채현석,조태경,최명렬 漢陽大學校 工學技術硏究所 2002 工學技術論文集 Vol.11 No.-

        TCP Vegas는 TCP Reno에 비해 안정적이고 이로 인해 네트워크 자원을 보다 효율적으로 이용할 수 있다. 그러나 두 버전이 같이 사용되는 경우 TCP Reno에 비해 TCP Vegas는 일정하나 낮은 수준의 전송율을 보이고 있다. 본 논문에서는 TCP Reno와 Vegas의 공정성에 영향을 미치는 요소인 TCP Vegas의 알고리즘에서 사용하는 상수 요소인 α·β, TCP의 MSS, 라우터의 버퍼 크기에 의해 TCP Reno와 TCP Vagas의 공정성이 변화하는 모습을 시뮬레이션을 통해 확인하였으며, 이에 따른 향후 연구과제를 제시하였다. TCP Vegas are much more stable than those of TCP Reno, resulting in a much more efficient utilization of the network resource. But difference in performance in due to the fact that Teno vibrates in the high throughput level and Vegas almost stabilizes in the low level when those TCP versions are used in same network. We find out by simulation about α·β which is constant factor of TCP Vegas, MSS of TCP and router buffer size change the fairness of TCP Reno and TCP Vegas. So we proposed more studying about these factor which changes fairness of TCP Reno and TCP Vegas.

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