강력범죄 피해자의 외상 후 스트레스 증상 및예측요인에 대한 탐색적 연구

김태경(Kim, Tae­Kyoung),윤성우(Yun, Sung­Woo),이영은(Lee, Young­Eun),이새롬(Lee, Saerom) 한국피해자학회 2018 被害者學硏究 Vol.26 No.1

The aim of this study was to investigate the posttraumatic stress symptoms of violent crime and predictors to the symptoms. For this, we analyzed data of 473 victims registered to the integrated supporting center for violent crime victims who agreed to participate in the study. The results showed that more than 90% of victims experience significant PTSD symptoms, 30% of them were in extreme mental confusion that required medication or hospitalization. There was a significant difference in the severity of sequela according to gender, time since visiting to the center, pre-event adaptation level, and event type. Although the victim experienced more avoidance and hypervigilance symptoms than the family, the psychological distress experienced by the family was not less than that of the victim. Psychological sequela of the events were found to be more severe with more experiences of childhood trauma, lack of ego resilience, low level of perceived social support, strong dissociation tendency, and avoiding coping styles. A result of the stepwise regression analysis, avoidant coping style explained 10.6% of the total variance. Limitations and implications of this study were discussed.

다양한 휜 형상 방열판에 대한 최적해 비교

박경우 湖西大學校 工業技術硏究所 2005 工業技術硏究所論文集 Vol.24 No.-

Optimal values of the design variables for heat sink with 7 × 7 pin-fins are obtained for two different cross-sectional fin areas by integrating the computational fluid dynamics and mathematical optimization technology. In the pin-fins heat sink, the optimum design variables for fin height (h), fin width (D), and fan-to-heat sink distance (c) can be achieved when the thermal resistance (θ_(j)) at the junction and the overall pressure drop (Δ_(p)) are minimized simultaneously. To complete the optimization, the finite volume method for calculating the objective functions and SQP method for solving the constrained non-linear optimization problem are adopted.

개질 결합재의 노화 특성이 아스팔트 콘크리트의 강도특성에 미치는 영향

김광수,안경애,김성운,이상범,이순제 강원대학교 석재복합신소재제품연구센터 2001 석재연 논문집 Vol.6 No.-

아스팔트의 노화 진행 과정의 특성과 아스팔트 혼합물의 노화 특성과의 관계에 대한 국내에서의 연구는 거의 전무한 실정이다. 따라서 본 연구에서는 결합재인 아스팔트의 노화가 아스팔트 혼합물의 특성에 미치는 영향을 분석하였다. 결합재로 사용된 폴리머 3종류와 골재 두 종류, 두 가지 입도, 두 종류의 아스팔트를 사용하여 32종류의 혼합물을 제조하고, 이를 다시 노화 전, 단기노화, 장기노화 처리하였다. 각각의 개질ㆍ비개질 아스팔트혼합물의 노화 과정의 특성을 분석하기 위하여 회복탄성계수실험(MR)과 간접인장강도실험(ITS)을 수행하였고, 추출ㆍ회수 후 바인더 특성시험(침입도, 동점도, 절대점도, GPC)을 수행하였다. 이를 다시 SAS를 이용하여 통계 분석하였다. 혼합물 시험에서 노화가 진행되어 감에 따라 회복탄성계수 및 간접인장강도는 크게 증가했다. 그리고 밀입도가 갭입도보다 강도 특성에서 크게 나타났고, 폴리머간의 비교에서 송진을 개빌한 바인더를 사용한 혼합물의 특성이 가장 우수하게 나타나 상온에서 가장 효과적인 개질재임을 알 수 있었다. 바인더 시험에서 골재 종류가 노화시 물성에 심각한 요인임을 알 수 있었고, 입도는 점도변화에 큰 영향을 미치는 것으로 나타났으며 폴리머는 아스팔트 자체의 노화에 영향을 미치지 않는 인자임을 확인할 수 있었다. 또한 GPC를 이용한 LMS 측정으로 추출ㆍ회수없이도 바인더 물성을 어느 정도 예측 할 수 있는 가능성을 나타냈다. 본 연구 결과 아스팔트 혼합물의 노화특성은 골재 종류, 입도, 개질재의 종류, 바인더의 종류 등의 다양한 요인에 의해 영향을 받는 상태에서 바인더의 특성 변화만으로 혼합물의 강도 특성 변화를 추정하는데는 어려움이 있음을 알 수 있었다. Asphalt concrete is a mixed product of asphalt binder and aggregates. Asphalt binder characteristics in asphalt mixture are changed due to aging of binder. Since asphalt mixture becomes stiffer and brittle due to age hardening of binder, mechanical properties of asphalt concrete are also a function of binder characteristics. However, the correlation of mixture mechanical property with asphalt (binder) property is not well known. This study dealt with evaluation of physical properties of asphalt binder, including polymer modified asphalt (PMA), and mechanical properties of asphalt mixture. The measured physical properties included absolute viscosity, kinematic viscosity, penetration, and LMS (large molecular size). The mechanical property included resilient modulus, indirect tensile strength and stiffness index. Statistical analyses were carried out to find out the factor(s) having a significant effect on change of physical and/or mechanical properties of asphalt mixture due to aging. A relatively high correlation was found from each physical property with stiffness index.

메타디식을 이용한 메타추론에 관한 지식표현방법

박경우,배상현 조선대학교 기초과학연구소 1994 自然科學硏究 Vol.17 No.1

Expert system, having knowledge of human being and Know-how, subsitudes computer for highly judgement and operation of Expert. This is a applicative part of artificial intelligence in computer operation. This paper is show Knowledge-Representation Method for Meta-Reasoning to us. Meta-Reasoning is reasoning about reasoning and reasoning about knowledge structure of reasoning. In using Expert system program, I research using Meta-Knowledge in behalf thinking: logically pursuitable goal. This papers present shows the knowledge-Representation Method for Meta-Reasoning using Meta-Knowledge in Expert system.

종격동 종괴를 의심케한 우대동맥궁 1례

김만우,백학연,정춘해,장경식,홍순표,조건국,김종진 朝鮮大學校 附設 醫學硏究所 1987 The Medical Journal of Chosun University Vol.12 No.1

Developmental anomalies of the aortic arch, commonly known as vascular rings, are relatively rare congenital vascular anomalies which can compress the trachea and esophagus. One routine chest film of a patient who was checked and hepatoma-diagnosed in Internal Medicine, Chosun University Hospital left the room for doubt of mediastinal mass. But no subjective symptoms for the mass was told by the patient. This is to report our experience of a patient having right side aortic arch with aberrant left subclavian artery, as proved by diagnosis, but none of congenital heart disease. This right side aortic arch with aberrant left subclavian artery is the most frequent type among right aortic arch, the anomaly of which is usually detected from the incidental suspicion for mediastinal mass at routine chest film; because no symptoms are accompanied therewith.

수면관련 호흡장애 환자의 MMPI 및 SCL-90-R 반응 특성

김경우,윤석준,양창국,한홍무 한국정신신체의학회 2002 정신신체의학 Vol.10 No.1

Headed Reinforcement를 사용한 철근콘크리트 깊은 보의 전단거동

강경훈,이우진,김수봉,서수연,윤승조,김성수 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

Generally, headed reinforcement offers several advantages over straight bar or hooked bar anchorages to develop reinforcement in concrete members. The purpose of this study is to investigate the shear behaviors of reinforced concrete deep beam with headed reinforcement. Five deep beam specimens are designed to study the anchorage capacity of headed reinforcement as well as the contribution of H-bar and V-bar to the shear. Two anchorage types, standard 90-degree anchorage and headed reinforcement, are considered in design. From the tests, it is shown that In the test results, headed reinforcement is able to replace standard 90-degree anchorage as the anchorage method. The evaluation on the contribution of H-bar and V-bar in current design code for deep beam shows that the former is overestimated 75% and the latter is overestimated 17%.

레진시멘트의 접착 내구성에 관한 연구

조민우,박상혁,김종률,최경규 대한치과보존학회 2007 Restorative Dentistry & Endodontics Vol.32 No.4

XML/EDI기반 건설물류관리시스템

남경우,서용칠,구교진,현창택 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

Logistics in construction project includes purchase, procurement and transportation on the network consisting of contractor, subcontractor, supplier, manufacturer, carrier and so on. Collaborations and integrations among the each participants play a key role. It is necessary that we take advantage of recent information technology in order to optimize logistics and achieve collaborative integration. The use of extensible markup language(XML) has been continued increasingly in recent years. This research aims at presenting conceptual Logistics system based on XML/EDI. Various participant in construction project will have more efficient and malleable Logistics atmosphere.

인체 간 Microsome에서의 우슬 추출물의 Cytochrome P450 약물 대사효소에 대한 억제작용

김경아,이지숙,박히준,김진우,김창주,심인섭,한승무,임사비나 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2003 東西醫學硏究所 論文集 Vol.2003 No.-

Objective : Achyranthes bidentata radix (Usul) has been used as anti-arthritic, antiallergic, antidiuretic and so on Recently extracts of Achyranthes bidentata radix have shown anti-inflammatory and cancer preventive effects in vitro and in vivo. Methods : We therefore evaluated the inhibitory potential of ehtanol extracts of Achyranthes bidentata radix on cytochrome P450(CYP) isoforms-catalyzecd reactions, which relate to causes of cancer and inflammation, including CYP1A2, CYP2C9, CYP2C19, CYP2E1, CYP2D6, CYP2C8, and CYP3A4, using human liver microsomal preparations. Results : The extracts showed weak or negligible inhibitory effects on CYP2C9-catalyzed (S)-warfarin 7-hydroxylation, CYP2C19-catalyzed S-mephenytoin 4-hydroxylation, and CYP2D6-catalyzed dextromethorphan O-demethylation with each IC50 over 1750 g/㎖, respectively. However, it showed relatively significant inhibitory effect on CYP1A2-catalyzed phenacetin O-deethylation and CYP2E1-catalyzed chloizoxazone 6-hydroxylation with IC50s of 970.5 g/㎖ and 821.4 g/㎖, respectively. Conclusions : These results suggest that extracts of Achyranthes bidentata radix have inhibitory effects on CYP-catalyzed reactions, expeciallyCYP1A2 and CYP2E1, in human liver microsomes. These effects appear to relate to anti-inflammatory and cancer prevention following decrease of reactive oxygen species formed by CYP, especially CYP1A2 and CYP2E1, by Achyranthes bidentata radix. However, further evaluation is necessary to demonstrate and to confirm its effects in human.