ANALYSIS OF FIRE CHARACTERISTICS IN APARTMENT BUILDING THROUGH FULL SCALE EXPERIMENT AND ZONE MODEL SIMULATION

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.

번호이동성제도 시행 이후의 소비자 행동에 관한 실증분석

윤충한,정준호 한국정보사회진흥원 2006 정보화정책 Vol.13 No.2

우리나라 이동전화시장의 공정한 경쟁을 위해 도입된 번호이동성 제도는 제도 시행이후 시장에 여러 가지 긍정적인 변화를 가져온 것으로 판단된다. 제도 시행이후 가입전환은 증가하였으며, 시장점유율의 차이는 줄어들고 허핀달지수는 지속적으로 내려가고 있는 등 시장구조에 상당한 변화가 일어나 이동전화시장이 더 경쟁적인 상태로 변화하고 있음을 보여 준다. 본 연구는 집계변수 측면에서 확인되는 이러한 이동전화시장의 변화가 번호이동성으로 소비자들의 선택이 더욱 용이해지고 가입전환에 드는 비용이 줄어들어서 발생하는 현상인지를 직접적으로 확인하기 위해 소비자선택모형을 이용하여 시장의 번호이동성제도의 효과를 실증적으로 분석하였다는 점에서 의의가 있다. 관측되는 가입전환의 증가 현상이 실제로 번호변경에 따르는 비용으로 오랫동안 가입전환을 하지 못했던 소비자들이 대거 번호이동하였기 때문에 나타났다는 본 연구의 실증분석 결과는 전환비용과 번호이동제의 효과 분석에 많은 시사점을 준다.

흙댐의 密度變化에 의한 壓密 沈下에 대한 硏究

尹忠燮 건국대학교 1986 論文集 Vol.23 No.1

This study was carried out for the settlement and camber of earth dam by the density changes. The testing material was taken five kinds of soil used as banking material and it was compacted by 100, 95, 90, 85 and 80% compaction degree. The results of the settlement of earth dam whose height ranges from 10m to 50m are as follows 1. The more the fine particle (n) increases, the higher the liquid limit (wL) and the lower the dry density (rd) becomes as follows: wL = 10.47+0.32n rd = 2.22-0.0052n rd'= 2.394-0,01647 wL 2. The higher the optimum moisture content (Wo) becomes, the lower the density becomes as follows: rt = 2.68-0.028Wo rd' = 2.578-0.04Wo 3. Most of the consolidation occurs immediately by loading and the more the fine particle increases, the lower the co-efficient of consolidation becomes. 4. The more the fine particle increases and the lower the compaction degree (D) becomes, the lower the pre-consolidation load becomes but on the contrary the compression index becomes higher. Those values are from 0.013 to 0.169. 5. The more the consolidation load (P) increases, the lower the coefficient of volume change (mv) becomes with mv= ap-b 6. The more the lead increases, the higher the settlement ratio (U) becomes with U= (0.6∼1.35)P0.4 7. The more the fine particle (n) increases, the more the settlement of dam occurs with U = anb and 60-80% of the settlement occurs under construction. 8. The camber of dam has higher value in condition that it has more fine particle, poorer compaction and higher Height of dam. In the dam design, twice value of Table 7 is required.

貴金屬·寶石加工産業의 經營實態와 國際競爭力 分析 : 裡里 貴金屬·寶石加工團地를 中心으로 Focusing on Iri Jewellery & Gems Export Industry Park

尹忠沅,崔宇琮,尹錫玩,卞在權 全北大學校 1988 論文集 Vol.30 No.-

Jewellery & gems industry has been developed with the beginning of ancient human history as all the mankind have a fancy for precious metals and stones regardless of the times and nationality. Historically, Korean also had an excellent workmanship from the ancient era and shipped it, as a tribute, to the neighboring countries. However, our deposits of gold and silver had been almost dried up, especially owing to a lot of excavation during Japanese imperialist rule, And precious stones have not been discovered in Korea except a small quantity of crystal. Therefore, Korea cannot but depend on the processing industry of jewellery and germs by importing the unworked gold, diamond and other precious stones from overseas countries. By the way, recent overseas market of jewellery & germs is very extensive and the value added of the industry is much larger than other industries. So jewellery & gems processing industry is regarded as the most important field in the advanced countries. All the more, the industry is typical of labor-intensive one and is more suitable to the nations whose people are deft-handed. From those points, it is quite appropriate to Korea. Recognizing this facts, Korean government had set up a Jewellery & Gems Export Industry Park in Iri city ten years ago. The bonded industry park has much contributed to export promotion and regional economic development. But there are a lot of room for improvement if we would obtain the anticipated results. So we researchers have studied and analyzed the following points to find some ways for improving the Iri Jewellery & Gems Export Industry Park. ① the history of precious metals & gems industry in both overseas countries and Korea. ② international production status of unworked precious metals & stones, and structure of international trade. ③ business status of exporting companies in Iri Jewellery & Gems Export Industry park; general circumstances, exprot & import structure, employment policy, production & skill, purchasing materials (the unworked stones ) and marketing etc.

소아복벽원심성 지방위축증 2예

윤정빈,허충림,김낙인 경희대학교 1997 慶熙醫學 Vol.13 No.4

정신과 연구대상 환자의 동의능력에 대한 조사

윤충한 大韓神經精神醫學會 1993 신경정신의학 Vol.32 No.2

This study was designed to evaluate the competence of psychiatric research subjects and then to identify the possible relationship between the competence and demographic and clinical characteristics of the research subjects. The subjects were 61 schizophrenics who had been admitted to Yong-In mental hospital and had participated in two clinical studies. Thirteen questions to evaluate the competence to give an informed consent were presented to them and the author interviewed patients. The main results were as follows. 1) Thirty six point one % said they had been asked for an informed consent, and 29.5% said that they had participated in the research voluntarily. 2) Only a few patients understood the contents of the informed consent. 3) The rate of the patients who were convinced of confidentiality was 45.9%. 4) Some patients agreed with the clinical studies being done in the hospital setting, but many patients showed the negative attitudes toward their being research subjects. 5) The patients aged 30-39 years showed much concern for the possible risk of research. Patients with lower level education seldom participated voluntarily. 6) In Brief Psychiatric Rating Scale(BPRS), the patients who thought that there had been no informed consent showed higher total scores and higher thought disturbance cluster scores. The involuntary participants showed higher thought disturbance and higher paranoia cluster scores. The patients who understood the procedure of the research showed higher anxiety-depression cluster scores. The results suggest that the most schizophrenic patients do not understand the contents of the informed consent. More efforts to explain the contents of the informed consent are expected for the schizophrenic patients.

정신분열병에서 Haloperidol과 Glycine 병용투여의 효과

윤충한,최소현,곽상곤,배석주,강윤형 용인정신의학연구소 1994 용인정신의학보 Vol.1 No.2

ATHB12, an ABA-lnducible Homeodomain-Leucine Zipper (HD-Zip) Protein of Arabidopsis, Negatively Regulates the Growth of the Inflorescence Stem by Decreasing the Expression of a Gibberellin 20-Oxidase Gene

Ora Son,허윤선,김윤경,이현정,김성한,김미란,남경희,이명석,김부용,박종범,박정안,이석찬,Atsushi Hanada,Shinjiro Yamaguchi,이인정,김승기,윤대진,Eva So¨derman,천충일 Sookmyung Women's University Research Institute of 2010 여성과 건강 Vol.6 No.1

말초혈액 단핵구와 단핵구 유래 세포주 THP1에서 FcrR 자극에 의해 유도되는 염증반응의 조절기전

윤강순,윤석란,이충은,김형순,변광호 大韓免疫學會 1993 大韓免疫學會誌 Vol.15 No.-

Regulation mechanisms of inflammatory responses induced by FcrR stimulation in human monocytes and monocytic cell line THP1 were investigated. Release of arachidonic acid, which is the precusor for inflammatory mediators, was induced by FcrR stimulation with its ligand human IgG or with anti FcrR mAbs. This response was further increased when FcrR was cross-linked with in-soluble anti-IgG-agarose and soluble anti-IgG Fc specific Fab fragments. These phenomena were shown in both monocyte and THP1. Oxidative burst activity, resulting from generation of reactive oxygen speices, was also induced by FcrR stimulation and further enhanced by cross-linking of Fcr R. Induction mechanisms of inflammatory responses caused by PMA or FcrR stimulations were then examined by measurements of release of arachidonic acid and oxidative burst activity. The results demonstrate that monocytes utilize different signaling pathways for FcrR or PMA stimulation. Signaling mechanism of PMA stimulation is especially dependent on Ca}+/calmodulin dependent kinase in arachidonic acid release, but not in oxidative burst activity. Meanwhile, signaling pathways of FcrR are dependent on tyrosine kinase but independent of protein kinase C both in the release of arachidonic acid and oxidative burst activity. The results suggest that in monocytes, there is a not only functional but also mechanistic link between arachidonic acid release and oxidative burst activity induced upon FcrR stimulation. Distinct signaling pathways seem to be operating in transformed monocytic cell line THP-1 cells, and no mechanistic link was found between arachidonic acid release and oxidative burst activity induced after FcrR stimulation.

求償貿易去來의 契約慣行에 관한 考察 : 東歐諸國과 對應購買去來를 中心으로 Focusing on Counterpurchase Transaction with East European Countries

尹忠沅 全北大學校 1989 論文集 Vol.31 No.-

From the middle of 1970s, the importance of countertrade practices in East-West trade has grown as the foreign trade organizations in Eastern countries insisted more often on linking purchase contracts in the West with the simultanous or deferred export of their own products. In this situation, the ability and willingness to countertrade is crucial to the success of many Western companies' export plan. However, countertrade commitments often means that they have to get involved in complicated and risky business, unlike other general types of foreign trade. Therefore, this study examines mechanism of countertrade, in Chap. Ⅱ, categoriaing the defferent types which might be useful not only for purely academic reasons but also because of the very practical value, and shows the main difference of contracting practices by type. And in Chap. Ⅲ, problems concerning the use of the concepts describing the various types of countertrade are shown because there is a considerable degree of confusion between international trade organizations, countries and countertrade experts. Chap. Ⅳ shows the major issues that arise in the course of making a contract and the best case outcome from the point of view of the Western party to countertrade negotiations. Main issues cover separation of contracts, countertrade ratio, selection and quality of countertrade goods, time period for fulfilment of countertrade obligations, pricing, distribution, and non-performance penalties etc. Chap. V discusses some legal context in which countertrade take place, considering instrument of public international law that comes closest to regulating countertrade-GATT and IMF.