파라콰트 중독에서의 항산화치료

권운용,조유환,송형곤,김명천,이중의,서길준,윤여규 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Background: Paraquat causes severe tissue toxicity when ingested, but has no effective treatment modality. We have shown that high dose vitamin C has effective antioxidant activities against the paraquat intoxication in a previous animal experiment. This study was designed to evaluate the effect of antioxidant therapy with high dose vitamin C and vitamin E in human cases of paraquat intoxication. Methods: From August 1999 to August 2001, 19 paraquat intoxication patients who visited the emergency department of the Seoul National University Hospital and the Kyounghee University Hospital were enrolled to this study. They were devided into two groups, a control group(9 patients) and a study group(10 patients). The control group received only conservative managements including gastro-intestinal decontaminati-on. The study group received conservative managements plus the antioxidant therapy which was composed of vitamin C 24 gm/day intravenously and 20 gm/day orally, and vitamin E 1.6 gm/day orally. Results: In the study group, 5 of 10 patients(50%) survived, but all patients of the control group died(p=0.003). There were no significant differences in age, sex, and usage of gastric lavage and activated charcoal between the two groups. Difference in ingested amount of paraquat between the two groups could not be analyzed due to the inexact and subjective measuring methods based on patients' histories. Conclusion: Antioxidant therapy with high dose vitamin C and vitamin E is effective in vival rate in paraquat intoxicated patients.

쓰레기埋立場 造成事業의 葛藤管理方案

강성권,김형빈 東亞大學校 大學院 1999 大學院論文集 Vol.24 No.-

This research is dirtted at presenting policy at examining the problems involved in the creation of waste disposal sites through a case study of Seokdae, Eulsuk-do and Saenggok landfills in Pusan Metropolitan City. The analysis of landfill creation work based on the variables above revealed the following problems. First, policy planning stage. The standards of aelecring location were obscure and objective and accurate information was not provided. Commitments to area development support were ont duly implemented, which resulted in citizens' disbelief in the location selection committee. Second, Construction stage. Construction was not carried out properly according to the executive draft, which resulted in further resistance and conflict with the resident consultants. Third, Operation stage. The neglect of safety diagnosis of the facilities resulted in sewage infiltration, contamination of the watershed and aquafer. This resulted in crop damge. Lack competent manpower and adequate finance is also still a problem. Fourth, Post Management stage. Stable use of the landfills was not guaranteed. Reutilization plans for the were not set up even after operation.

폐경기 여성에서 호르몬 대치 요법시 병행 투여된 프로제스토젠 투여 방법에 따른 골대사의 생화학적 지표에 미치는 영향

이권해,강선영,임경빈,이해혁,구도형,이석민 순천향의학연구소 1998 Journal of Soonchunhyang Medical Science Vol.4 No.1

Purpose : To evaluate the impact of added progestogen on biochemical markers of the bone turnover undergoing hormone replacement therapy in the postmenopausal women. Materials and Methods : There are 71 postmentopausal women who are divided into three groups (Group I, Group II, Group III). Group I(continuous combined)is given conjugated equine estrogen (CEE, 0.625mg, day 1-30) plus medroxyprogesterone acetate (MPA, 2.5mg, day 1-30), Group II(unopposed estrogen) is given conjugated equine estrogen (CEE, 0.625mg, day 1-30) plus medroxyprogesterone acetate (MPA, 5mg, day 1-12). And there were measured serum osteocalcin, serum total alkaline phosphatase and urinary deoxypyridinoline excretion before starting hormone replacement therapy and 12 months later. Results : The serum osteocalcin, serum total alkaline phosphatase and urinary deoxypyridinoline excretion significantly decreased after hormone replacement therapy (Group, I, II, III). And there was no significance in decreases in biochemical markers of the bone turnover among three groups. Conclusions : It was concluded that the impact of added progestogen on the biochemical markers of the bone turnover undergoing hormone replaced therapy in postmenopausal women was not significant than nothing added group. Thus we concluded that progestogen was not impact on decreasing on the biochemical markers of the bone turnover in postmenopausal women undergoing hormone replacement therapy.

차량 시뮬레이터를 이용한 적응순항제어시스템의 성능 평가

남형권,이운성 국민대학교 생산기술연구소 2003 공학기술논문집 Vol.26 No.-

Adaptive Cruise Control (ACC) system can automatically adjust the headway-time and driver vehicle's speed between a driver vehicle and a preceding vehicle. Driving simulator a is virtual reality tool that allows Driver-In-the-Loop Simulation in a laboratory. This paper addresses driving behavior with Adaptive Cruise Control (ACC) system using driving simulator. Participants with different driving styles have driven the simulator with and without ACC through a highway route. Participants are divided by Driving Style Questionnaire (DSQ)-Focus, Speed and Total DSQ scores. Driving behavior in terms of average headway-time, lateral position of a car, and head and gaze movement has been investigated.

圓孤形 變斷面 ARCH의 面內挫屈에 關한 硏究

盧瑩住,權泰鼎 嶺南大學校 工業技術硏究所 1985 연구보고 Vol.13 No.1

Accoding to need long span structure, Because structure members of the arch use to long member compare with the cross section area, Buckling will occur in these case, and that when member use varying cross section due to economize on materials, Buckling will occur rapidly and easily. Therefore arch is broken down owing to buckling after all ultimately. Some model of similar type Arches of varying cross section selects concretely and the critical load of these model obtains with Energy Mehtod and Simpson's rule for In-plane Buckling. We have to secure the safety factor for In-plane buckling of Arches in consideration from some angles. In view of the results above 1) The magnitude of critical load of each model is A>B>C>D 2) D Model has no effect of varying cross section in buckling 3) The arch which is constant radius is profitable varying cross section in case of α=75˚-90˚ 4) In identical span arch of constant cross section and varying cross section. The Arch is Stabile when RISE SPAN ratio is 1/5-1/4. 5) The critical load of all varying cross section Arch can obtain with the graph easily.

피질이형성증과 동반된 난치성 간질의 외과적 치료

김형일,김연희,이민철,정애자,권지현,최하영,Andre Palmini 啓明大學校 醫科大學 1995 계명의대학술지 Vol.14 No.2

The advent of neuroimaging technique has enabled the accurate diagnosis of structural abnormalities associated with intractable epilepsy. Among these, neuronal migration disorders(NMDs) or cortical dysplasias(CDs) involving cerebral cortex are increasingly recognized as a major cause of intractable epilepsy. CDs are expressed as variety of forms depending upon the time of injury to the developing nervous system. CDs are highly and intrinsically epileptogenic. It is crucial to completely resect the epileptogenic zone in focal CDs for better seizure outcome. Hemispherectomy or multilobar resection is preferred for hemimegalencephaly. Callosotomy can be chosen in the diffuse CDs who have intractable drop attacks. However, resective surgery can benefit the selected patients with diffuse CDs if localizing information persists.

학교안전사고와 성격 특성과의 관계 : 충동성과 내·외향성을 중심으로 with special reference to impulsivity and extroversions-introversion

이형엽,권봉안,이영애 한국안전교육학회 2002 한국안전교육학회지 Vol.5 No.1

The school constitutes an environment of great concern for public health as it is the location of occurrence of a major proportion of injuries sustained by adolescent. The aim of the study were to investigate in effect of personality factors of middle school student on safety-accidents in school. For these aims, five targets were established: (1) how to gender and location effects safety-accidents in school. (2) how to motor skill effects safety-accidents in school. (3) how to extroversions-introversion in personality effects safety-accidents in school. (4) how to impulsivity effects safety-accidents in school. (5) how to impulsivity and extroversions- introversion interacts safety-accidents in school. The number of participants were 495(man=234, female=261), who took part in physical classes. The results were as follows: (1) 24.6 percent of responded student have experienced safety-accidents in school during 1 year period. (2) boys shows higher rates of safety-accidents in school than girls. (3) safety-accidents in school have taken place mai y indoors, (4) the main causes of safety accident in school are student factor (5) the case of impulsivity effects safety-accidents in school (6) the case of extroversions-introversion had no effects.

VHDL을 이용한 유도전동기의 속도제어

박형준,권영안 釜山大學校生産技術硏究所 2002 生産技術硏究所論文集 Vol.61 No.-

최근에 VHDL을 이용한 ASIC 회로설계 기술이 개발되면서 전용 프로세서의 설계가 용이하게 되어 많은 분야에서 응용되고 있다. 본 논문은 VHDL을 이용한 ASIC 회로설계 기술을 유도전동기의 송도제어에 응용하는 연구로서 유도전동기 구동시스템의 제어부를 효율적으로 설계하고 one-chip으로 구현하는데 목적을 두고 있다. 이를 위해 유도전동기의 속도제어 방식인 슬립제어의 동작레벨을 기술하고 시뮬레이션하여 동작을 확인한 후, 회로를 합성하고 최종적으로 FPGA를 이용하여 속도제어 ASIC을 제작하였다. 본 논문에서 제시된 유도전동기의 속도제어 시스템은 시뮬레이션과 실험을 통하여 그 타당성을 입증하였다. The ASIC chip design for the speed control of an induction motor has been a subject of increasing interest since an effective system-on-a-chip design methodology is developed. This paper investigates the design and implementation of the ASIC chip for the speed control of an induction motor using VHDL which is a standarded hardware description language. The presented system is implemented using a simple electronic circuit based on FPGA. The overall drive system for the speed control of an induction motor is verified through the simulation and experiment.

아급성기 대량 재해 지역에서의 의료 지원 : '99 대만 지진 의료 지원을 중심으로

송형곤,강보승,송근정,정연권 대한응급의학회 2000 대한응급의학회지 Vol.11 No.3

Background: There was a powerful earthquaken(Richter Scale 7.6) In Tiawan, on Sep.21, 1999. We supported the organized medic긴 services in that area during 5 days. Methods: We made the protocol and analyzed the results prospectively. Results: We took care of a total of 708 patients from sep. 23 to sep. 27. Traumatized patients related to the earthquake were 245(34.6%), and most of them had minor injuries. Two hundred thirty-nine(239, 33.8%) patients visited us for medical disease related to living in a group. There were 29(4.1%) patients who complained of neuropsychiatric problems due to the post-earthquaken stress. Because the condition of the patients was so bad, 18(2.5%) were transferred to receive more medical services. Conclusion: In disaster area, organized medical services have two different roles, especially in the subacute stage. One is responsibility for real emergency medical care, and the other is medical care of non-emergency patients.

응급의료 헬리콥터를 이용한 환자이송에 대한 고찰

송형곤,김병철,송근정,정연권,신백효 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

Background: The first EMS helicopter was introduced to Korea in 1996 and from Dec. 1. 1997, it was used for transporting emergent patients. Authors, here upon, report the transporting experiences. Methods: From Dec. 1, 1996 to Dec. 31, 1997, Samsung Medical Center's EMS helicopter was used for air evacuation of critically ill patients. The patients data prospectively analyzed. Result: A total of 65 patients were transported. Male to female ratio was 1.95:1. The mean transport time was 64.1 min(10 - 160 min). Majority of the evacuated patients was surgical patients (General Surgery : 16, Orthopedic surgery : 10, Neurosurgery : 6, Internal medicine : 13, Pediatrics : 3, and others : 3). Twenty-one of the 65 patients transported were admitted to ICU and 31 did not require ICU care. During the air evacuation, one physician and one nurse trained for air evacuation attended the patients. No medical problems or deaths developed during the air evacuation period. Conclusion: The first EMS helicopter was introduced to Korea in 1996. From Dec. 1, 1996 to Dec. 31, 1997, Samsung Medical Center's EMS helicopter was used for air evacuation of critically ill patients. The patients data reported.