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Yoon,Myong-O,Park,Jin-Kook,Kim,Choong-Ik,Ryou,Hong-Sun,Kim,Jin-Gon,Kim,Myung-Bae,Choi,Jun-Seok,Kim,Kwang-Il 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-
Fire characteristics of a typical apartment building in Korea was studied through full scale experiment and zone model simulation. The fire was ignited at the living room and allowed to spread to other parts of a single unit in a five storied apartment building. Various data including temperatures, species concentrations, and images were collected in the experiment. A zone model(CFAST) was used to analyze the same apartment building that represents the average households in Korea. The results were compared with a full scale experiments. While CFAST allows one compartment involved with fire, the experiment allowed the fire to spread to other compartments. Therefore, the comparison between experimental data and Zone-Model data is valid until the living-room fire spread to other parts of the apartment. Flashover occurred at approximately 380 seconds in a fire experiment, and at approximately 420 seconds in Zone-Model. Based on all of data between experimental data and Zone-Model data, it is concluded that the safe escape time is about 250 seconds.
한의진단명과 진단요건의 표준화 연구 III : 3차년도 연구결과 보고
최선미,양기상,최승훈,박경모,박종현,심범상,김성우,노석선,이인선,정진홍,이진용,김달래,임형호,김윤범,박성식,송태원,김종우,이승기,최윤정,신순식 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1
The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the third year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : - analyzing and differentiating of epidemic febrile disease - analyzing and differentiating in accordance with the Sasang constitution medicine based on four-type recognition - differentiation of disease according to pathological changes of Chong and Ren channels - standards for diagnosis of women's disease - standards for diagnosis of children's disease - standards for diagnosis of motor and sensor disturbance (-muscle. born, joint, etc.) - standards for diagnosis of neuropsychiatric disease - standards for diagnosis of five sense organ disease - standards for diagnosis of external disease The indivisual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name, notion of diagnosis pattern, index of differentiation of symptoms and signs, the main point of diagnosis, analysis of diagnosis pattern, discrimination of diagnosis pattern, prognosis, a way of curing a disease, prescription, herbs in common use, disease appearing the diagnosis pattern, documents. The standards for diagnosis of each disease was arranged by the diagnostic requirements in the following order : another name, notion of disease, the main point of diagnosis, analyzing and differentiating of disease, analysis of disease, discrimination of disease, prognosis, a way of curing and prescription of disease, disease in western medicine appearing the disease in oriental medicine, documents.
최양진,박상보,이병영,임윤수 한밭대학교 산업과학기술연구소 1994 논문집 Vol.2 No.-
It is very important to obtain wear resistant and high strength steel by addition a small amount of Boron. In this study, 4 melts of Boron added steel were according to it's content (0, 0.004, 0.006, 0.008%) Each melt were casted to Y-Block CO_2 mold respecitively, and its effects on the microstructure, mechanical properties and hardenability. The result obtained from this study are as follows. 1. Boron Carbide precipited on the grainboundary shows fine dispersion, but it has adverse influence on microstructure if the amount is over 0.004% 2. With increasing Boron content, the Boron-carbide volume fraction was increase.
진행된 HIV 감염 환자에서 십이지장의 미란성 병변으로 발현한 Mycobacterium genavense 감염 1예
진상만,박종선,김홍빈,오명돈,최강원,김희연,국윤호,김남중 대한감염학회 2007 감염과 화학요법 Vol.39 No.4
Mycobacterium genauense는 최근에 알려진 미코박테륨으로서, 식욕 부진, 체중 감소, 설사, 림프절 병증 등 파종성 Myocobacterium avium-intracellulare complex 감염과 유사한 임상상을 보이며, 위장관 침범을 잘 하는 것으로 알려져 있으나 아직 국내에서 증례는 보고된 바가 없다. 저자들은 진행된 HIV 감염 환자에서 십이지장의 미란성 병변으로 발현한 Mycobacterium genavense 감염 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. 환자는 상복부 동통과 발열, 설사로 내원하였다. 십이지장의 미란성 병변에서 시행한 조직검사에서 항산균이 가득 차있는 거품세포가 관찰되었으며, 이 검체에서 16S rRNA 유전자의 중합연쇄반응 검사를 시행하여 Mycobacterium genavense를 확인하였다. Mycobacterium genavense, first identified in 1990, is known as a pathogen that mimics disseminated Myocobacterium avium-intracellulare complex (MAC) infection with particular propensity for the gastrointestinal tract. In Korea, no case with the organism has been reported. Herein we report a case of Mycobacterium genavense infection that manifested with erosive lesion of duodenum in a patient with acquired immune deficiency syndrome. The patient presented with epigastric pain and fever, diarrhea. Duodenal biopsy showed histiocytic infiltration with numerous acid-fast bacilli. Identification of the mycobacterial isolate by the polymerase chain reaction restriction analysis of 16S rRNA gene revealed Mycobacterium genavense.
오렌지 껍질로부터 분리된 프라보노이드의 화학요법 감작효과
최철익,변익건,차윤정,김선필,민영돈,유진철,송재경 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2
Background and Objectives : The overexpression of P-glycoprotein (Pgp) or multidrug resistanceassociated protein (MRP) confers multidrug resistance (MDR) to cancer cells. MDR cells could be sensitized to anticancer drugs when treated concomitantly with a chemosensitizer. In this study, orange peel have been screened for the development of chemosensitizers reversing MDR. Materials and methods : Expression of Pgp in AML-2/WT and AML-2/D100 were determined using western blot analysis and RT-PCR. Candidates for chemosensitizers were isolated, purified from orange peel using sephadex LH-20 column chromatography and silica-gel column chromatography, whose structure was determined using ^1H-NMR, ^13C-NMR, ^1H-^1H-COSY, 13C-NMR, EI-Mass, IR. Chemosensitizing effect of NP-28 on AML-2/DX100 over expressing Pgp and MRP was determined by the MTT assay. Membrane toxicity was evaluated by the RBC hemolysis test. Antioxidant effects were examined by using a fluorescence probe (2’-7’-dichlorofluorescein diacetate). Results : A potent candidate, NP-28, has a flavonoid nucleus with some methoxy moiety. NP-28 is believed to have high therapeutic index, being non-transportable inhibitor and possibly, of inhibiting other efflux pumps such as MRP and antioxidant effects. NP-28 is also unlikely to be a substrate of Pgp. NP-28 did not increase Pgp levels. Conclusion : NP-28 has a Chemosensitizing effect to reverse Pgp-mediated MDR by increasing the intracellular accumulation of drugs. Furthermore, they do not increase expression of Pgp, which can allow a long term use without the concern about Pgp activation. NP-28 is anticipated as an ideal second-generation flavonoid chemosensitizer and/or possibly other therapeutic agents by further investigation.
인장력을 받는 CT형강 고력볼트 접합부의 감소계수 U값에 관한 연구
윤성호,김진숙,김원식,신영록,김보영,최문식 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
The purpose of this experimental study is to investigate the validity of code equation and table to calculate the reduction coefficient for effective net area in the limit state design code of steel structure and offer the basic research data for the effective net area of tee shape members in tension. The experimental tests were performed by loading the specimens through the flange with high strength bolt. Length of connection, number of bolt and the eccentricity are the parameters in test. According to result, the failure loads in test is less than predicted loads and it well showed when the predicted loads are based on reduction coefficient of the table in code. The lateral buckling of stem occurred in the members with big eccentricity and it reduce the failure loads. Therefore, we thought that an additional tests and research on the factors of effective net area is required.
최진용,윤광식 공주대학교 방재연구센터 1998 공주대학교 방재연구센터 논문집 Vol.2 No.-
Occurrence of agricultural disasters such as drought and flood is increasing due to erratic global weather conditions. Geographic Information System (GIS) is efficient tool for spatial analysis and utilized for develoment of agricultural disaster management systems systems which enhance understanding of severity and restoration of damage by disasters. In this paper, characteristics of several agricultural disaster are reviewed and examples of GIS applicaition for disaster. Preparedness and management systems of Korea and other countries are introduced.
How Young Consumers Perceive Firms’ Environment, Social, and Governance (ESG)
Choi,Woo Jin,Yoon,Ho-Jung 한국상품학회 2021 商品學硏究 Vol.39 No.6
Demand for ESG is surging. However, not many are known regarding how consumers perceive firms’ ESG. To fill this gap in the literature, the current research seeks to explore how firms’ ESG is perceived by the young generation as well as to explore how the young generation perceive South Korean firms from the ethical perspective. For this purpose, we surveyed ninety-two respondents (35.8% male; Mage=23.5) and they completed the survey. In the survey, respondents indicated their perception regarding South Korean firms’ ethical business management and South Korean firms’ ESG management. Most respondents said ESG would be important (88%) and helpful to achieve competitive advantage (81.5%). However, interestingly, almost of respondents (46.7%) said that ESG would be helpful to maximize productivity. Rather, 92.4% of respondents perceived that ESG would be helpful to enhance firms’ images. In addition, they also perceived that the importance of ESG would become great in the future (85.9%) enough to make a significantly positive impact on firms’ productivity (72.8%). In addition to these findings about ESG, we further investigated how this young generation perceived the ethical business climate among South Korean companies. The results show that only 17.3% of respondents said South Korean business is ethical and 70.6% thought ethical problems would be a problem in the future. While the investigation for South Korean consumers’ perception of ESG and ethical business is not many, our work makes a significant theoretical contribution by providing empirical evidence on this issue. Our results are also managerially meaningful by being a reference to South Korean companies as well as global companies who are interested in the Korean market.