MPC860을 이용한 라우터 실현

송인근,황주원 우송대학교 2003 우송대학교 논문집 Vol.8 No.-

In this paper, we implement router for home networkings using MPC860 board. We install cross compile enviroments to support debugging mode for MPC860 board and choose Linux for OS in embedded systems. We also perform Linux porting focused on Linux kernel using Network File System and Ramdisk. As the results of this implementation, it is shown that PCs can exchange their data and obtain all of served internet services through router. Since our router has only one port, the results of test cannot satisfy sufficiently. It is also expected that time delay and overload in traffic handling will be reduced by means of increment of port number and enlargement of memory capacity for MPC860 board.

다구찌 실험계획법을 이용한 드라이 선삭가공의 최적 가공조건 선정

송춘삼,김준현,김주현 한국공작기계학회 2003 한국공작기계학회 추계학술대회논문집 Vol.2003 No.-

Recently, various efforts to make more speedy and precision machine tool to improve productivity and also various efforts to solve environmental problem are going on, so that dry cutting in manufacturing industry, which needs environmental conscious design and development of manufacturing technique, is becoming a very important assignment to solve. Because dry cutting does not use cutting fluid, we need other methods that can be used instead of cutting fluid, which does cooling, lubricating, chip washing, and anti-corrosion. Especially, because turning is a continuous work, the consideration of tool life and surface roughness due to continuous heat and poor lubrication is important. The purposes of this paper are the consideration of how well the compressed air can work instead of cutting fluid, and also the development of the method to select the optimum machining condition by the minimum numbers of experiments through the Taguchi method.

Dextran Sulfate가 마우스에 있어서 결핵 및 Listeria Monocytogenes 감염에 미치는 영향

송경원,김주덕 최신의학사 1980 最新醫學 Vol.23 No.11

해외투자와 '삼변적' 산업정책: 1980년대 일본의 대동남아시아 해외투자정책

송주명 서울대학교 국제지역원 1997 국제지역연구 Vol.6 No.3.4

본 논문은 일본과 동남아시아 사이의 비대칭적 관계구조를 심화시킨 일본정부의 대외경제정책, 특히 해외투자정책의 특징을 분석할 것이다. 이 해외투자정책은 '삼변적' 산업정책이라고 부름직한 것으로서, 일본정부와 국내기업, 그리고 현지활동을 개시한 일본계 자회사, 나아가서는 현지투자대상국 정부와의 관계속에서 전개된 일관된 산업정책을 의미한다. 이 정책과정은 전통적으로 산업정책적 관계를 유지해 오던 일본의 국가-산업관계가 해외투자라는 계기를 통해 국제화되는 양상을 잘 보여 준다. 본 논문은 다음과 같은 논점을 중심으로 전개된다. 첫째 1980년대 일본기업들의 동남아시아에 대한 해외투자(이하 동남아시아 지역투자)는 투자지역의 선택면에서 기업자율적인 투자였다기보다, 양지역간의 전략적인 관계를 배경으로 산업정책적 구조속에서, 그리고 그 정책네트워크에 의해 유도되었다. 둘째 일본기업의 안정적 현지적응을 위해 일본정부는 산업정책기제(행정지도 및 보조금체계)를 통해 일본계 자회사의 현지활동에 개입했다. 섯째 일본정보는 본국경제의 원활한 구조조정-고도화된 국내생산과 표준화품해외생산의 분업적 통합-과 현지생산의 원활화를 위해 현지의 경제정책에 갱비했을 뿐만 아니라 독특한 산업정책체계를 이식하려 함으로써 투자대상국 정부의 정책선택지를 구조적으로 제약했다. 이러한 논점들은 1980년대 일본기업들의 동남아시아 지역 투자가 본국정부정책과의 '결탁'적 틀하에서 전개되었으며, 그 만큼 투자대상지역인 동남아시아는 독자적 발전전망보다는 일본 국가이익의 하위범주에 포섭되는 구조적인 문제에 직면함을 보여줄 것이다. This paper is analyzing the characteristics of Japan's foreign economic policies, particularly foreign direct investment policies in the 1980s that had deepened the asymmetric relations between Japan and the Southeast Asian nations. These policies, which can be called 'trilateral' industrial policy, indicate the coherent industrial policies pursued in the relations between Japan's government and domestic industries, and Japan-based subsidiaries in the ASEAN, and finally the ASEAN governments as the host government. The processes of the policies may demonstrate that with the large-scale foreign direct investment of private corporations in the 1980s, Japan' state-industry relation characterized as the industrial policy relation was also positively internationalized. This paper argues three points as follows. First, Japan' FDI in the ASEAN during the 1980s was politically induced within the framework of Japan's industrial policy and by its networks rather than voluntarily evolved in the respect of choosing the host countries. Second, Japan's government guided the operation of Japan-based subsidiaries with the mechanisms of the industrial policy(administrative guidance and subsidy systems, etc.) for their smoothe adaptation in the region. Third, for the successful transformation of its own domestic economy(the upgrade of domestic production and the promotion of FDI of the standaridized production) and the facilitation of the local production of Japan-based subsidiaries, Japan's government gave rise to structural restrictions in the ASEAN government's option of the policies by intervening in the local economic policies as well as by trying to transplant Japanese industrial policy to this region. These arguments show that FDI of Japanese corporations in the ASEAN during the 1980s was promoted within the framework of the 'collusion' with its home-country's policies, and for this reason the ASEAN economies, as a base of foreign production/export deeply dependent on Japan's national interest, may face serious structural problems.

工業敎育大學 敎育改善에 관한 硏究(Ⅲ)

宋周鎬,李昌岬,洪元杓,孟琦錫,任洪彬,李廷玟,李載元,李來烈,權五憲,金振淳,李文洙 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.1

This paper aims at providing a concrete plan to improve technical and vocational teacher education in the College of Industrial Education of Chungnam National University. It is intended to propose a practical four-year regular and short-term course. Also, the estimated required facilities is included in this study as well as their management. The main conclusions and recommendations are summarized as follows; 1) The numbers of students enrollment should be reduced to 220 students which is the approximate number of future demand. 2) In order to offer to the students a broader education and to cope with the increase/decrease in demand of technical and vocational teacher within a specific field, the 8 department existing at the present (Department of Architecture Engineering Education, Civil Eng. Educ., Metallurgical Eng. Educ., Mechanical Eng. .Educ., Electrical Eng. Educ., Electronic Eng. Educ., Industrial Chemistry Educ. and Industrial Technology Educ.) would be combined into 5 (Department of Construction Engineering Education, Mechanical Eng. Educ., Electrical Eng. Educ., Industrial Chemistry Educ. and Industrial Technology Educ.). 3) The short-term course program is recommened to provide additional training and education to those candidates who already have experience in technical fields to meet an occasional demand. 4) It is necessary to add the Teaching Profession Section in the administrative organization of the College.

저장용기 및 저장온도에 따른 김치의 품질변화

송주은,김명선,한재숙 동아시아식생활학회 1995 동아시아식생활학회지 Vol.5 No.2

맛있는 김치의 저장기간을 연장시키기 위하여 여러가지 저장용기와 저장온도를 달리하여 각 군마다 5포기씩의 김치를 담그고 각각에 The effects of storage containers and storage temperatures on Kimchi quality were investigated. The results were summarized as follows : 1. Pabix, poly ethylene-back+plastic container, tupper-ware were much better than crock, stainless steel, and plastic container in keeping Kimchi. However, there was no significant differences between containers in the sensory test for Kimchi. 2. Kimchi stored at 18±2℃ was the most delicious, which revealed pH 4.30, acidity 0.45-0.50%, and salt concentration 3.10wt% in the 4th days after storage whereas sensory score for Kimchi quality was very low in the 12th days after storage. 3. PH in Kimchi stored at 5℃ after fermentation at 18±2℃ was slowly decreased as compared to the Kimchi stored at 18±2℃ after fermentation. 4. PH and acidity showed no significant changes after 90 days storage when Kimchi was stored at -5℃ or -80℃ were compared to that of the Kimchi stored at 18±2℃, but texture score of Kimchi stored at -5℃ or -80℃ after fermentation at 18±2℃, but texture score of Kimchi stored at -5℃ or -80℃ were compared to that of the Kimchi stored at 18±2℃ after fermentation. 5. In the group of Kimchi stored at 10℃, immediately after pickling it took 48days until the best conditions which were pH 4.30 and acidity 0.45-0.50% were matched. 6. The most promising method in keeping good taste and good quality of Kimchi was to store Kimchi at 5℃ after 4days fermentation at 18±2℃. And, for long period preservation of Kimchi, it took would be effective to store at -80℃ after fermentation at 18±2℃.

전시회의 참가동기에 대한 중요도 - 성취도분석 : 한국과 중국 전시컨벤션센터를 중심으로

주현식,박송애 동의대학교 경제경영전략연구소 2005 經濟經營硏究 Vol.3 No.1

The purposes of this study were to examine exhibition attendees' motivation of by the provide exhibition attendees' in terms of importance and performance. Data were collected from the self-administered questionnaires of 180 overseas attendees in the four international exhibition held in dalen and simsu, China from 6 Januarly to 28 February 2005 and self-administered questionnaires of 186 domestic attendees in the two domestic exhibition held in Bexco busan, Korea from 1 April to 15 April 2005. The 28 items for measuring exhibitiontion exhibition attendees' motivation. The major findings were that there are significant differences between importance and performance in Korean exhibition attendees' motivation & Chinees exhibition attendees' motivation . The I-P matrix for Korean exhibition attendees' motivation & Chineesas shows major strengths and weaknesses. Among its major strengths are Special information & Ability enhance, New Study learning need, attendees inter-change. usually & Job subsistence rhythm change, usually & Job get rid of stress, exhibition development experience, exhibition interest & sadness, company with joyful time motivatio dimensions are its major weaknesses It is important for the exhibition attendees' motivation that weaknesses are addressed and strengths are emphasized in promotional efforts. The results of this study could be used to improve the Convention center's competitiveness.

뇌 경막하 축농

송준석,하은주,이종수,이승재,박효일 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.12

Subdural empyema is relatively uncommon condition. characterized by purulent collection in the subdural space. Having presented a fulminating clinical course with very high morbidity and mortality. it is conconsidered as a neurosurgical emergency. In recent years, the mortality of subdural empyema has significantly diminished due to rapid diagnosis, aggressive antibiotic therapy and timely surgical intervention. The condition remains a diagnostic challenge ; CT scanning cannot be relied upon although the use of intravenous contrast and more modem scanner has improved the diagnostic yield. MRI offers earlier and more accurate diagnosis of computed tomographically suspected lesion. We report cases of subdural empyemas. which were diagnosed with MR and operaton. We treated one case successfully and the other postoperative case unsuccessfully owing to a delayed diagnosis.

전공의들의 직업적 유해인자 및 직업만족도

송혜란,김진하,변주현,이광영,이덕희,김호찬 大韓産業醫學會 2003 대한직업환경의학회지 Vol.15 No.3

목적: 전공의는 여러 유해인자에 노출되어지고 있으며 과중한 업무로 인한 수면 부족에 시달리고 있다. 본 연구는 전공의의 건강상태의 기초 자료를 제공하고 향후개선 방안을 도출하기 위하여 시행하였다. 방법: 연구대상은 2000년 3사관학교와 국군군의학교에 입소한 전체 1,316명 중 전공의 수련과정 없이 입대한 의사와 치과의사, 한의사를 제외한 881명을 대상으로 설문지를 배포하여 784부(회수율: 89.0%)를 회수하고 이중 분석이 가능한 704(79.9%)명의 자료를 최종 분석하였다. 결과: 월평균 당진횟수는 레지던트 1년차에서 19회 정도이었다. 당직 시 평균 수면시간은 레지던트 1년차에서 4시간미만 이었다. 수련기간 동안 전공의의 20%이상에서 방사선, 레이저, 살균소독제, 마취가스, 항암제에 노출되었으며 예방대책은 방사선과 레이저의 노출의 경우 35%정도를 제외하고는 10%내외로 조사되었다. 연구대상자중 91.1%에서 수련기간 동안 주사침이나 시술에 의해 손상을 입었으며 그 중 본인이 감염된 경우는 HBV 2.3%(4명), HCV 0.6%(1명)으로 조사되었다. 응답자의 28.4%에서 자신의 직업에 불만족 하였으며 96.5%가 과중한 업무부담을 느꼈고 69.5%가 동일한 임금수준에서 직업을 바꾸고자 한다고 응답하였다. 결론: 전공의는 수련기간 동안 물리적, 화학적, 생물학적 유해인자에 노출되고 있었으나 이에 대한 보호나 예방대책은 거의이루어지지 않고 있었으며 과중한 업무부담으로 수면부족을 초래하여 가장 중요한 환자 진료에 지장을 받고 있었다. 수련기간 동안 대다수가 의사로서 직업에 대한 흥미를 가지고 있었으나 업무부담과 진료이외의 업무 등으로 소득과 조건이 비슷하다면 다른 직업을 선택하고자 하였다. 이상의 결과를 토대로 전공의들을 위한 유해인자의 보호대책 및 예방대책을 마련하며 과중예방대책이 마련되어야 하고 업무환경개선 및 업무로 인한 건강장해에 대한 정당한 보상이 향후에 마련되어야 할 것이다. Objects: Residents are exposed to various hazards and harassed by sleep dificiency due to overwork. This study was performed to outline the health condition of residents and develop the ways of improving it. Mehtods: A questionnaire was distributed to 881 army doctors who enrolled at the Korea Third Military Academy and The Armed force Health Service School in 2000 with the exception of medical doctors who joined the armed service without going through intern and resident periods, dental and oriental medical doctors. 784(89.0%) of the 881 questionnaires were resident of which 704 cases (79.9%). This should actually be 89.0% were regarded for analyses as being reliable data. Results: More than 20% of residents were exposed to radiation, laser, disinfectants, anesthetic gas, and anticancer drugs during their training periods with preventive neasures for each of these hazards taken in about 10% of the cases of the lesser hazards but in about 35% for the hazards from radiation and laser. 91.1% of residents had experience of needlestick injuries during theirtraining periods with over 36.3% being exposed to patients with infection during that time. The cases contracting HBV and HCV diseases due to pricking are 2.3% and 0.6% respectively. The average number of night duties per month during a one-year resident's period was about 10. The average sleeping time on duty during a one-year residents was less than 4 hours. 28.4% of respondents were not satisfied with their occupation, 96.5% delt tired from overwork and 69.5% wanted to change their occupation to another that would pay the same salary. Conclusion: Residents are exposed to harmful physical, chemical and biological factors, but the preventive care seldom undertaken. In addition, their overwork brings about lack of sleep which causes them problems when giving medical treatment to patients during their training periods. Despite the resident's interest in an occupation as a doctor, many intend to select other occupations if they can receive the same salary. According to the above results, preventative systems and measures should be prepared with environmental improvements for residents, and proper rewards for their overwork should be accomplished

압축공기를 이용한 건식 선삭가공의 절삭특성

송춘삼,김주현 한국공작기계학회 2005 한국생산제조학회지 Vol.14 No.1

The purposes of using cutting fluid during cutting have been cooling, lubricating, chip washing, and anti-corroding. However, the present manufacturing industry restricts the use of cutting fluid because cutting fluid contains poisonous substances which are harmful to the human body. Therefore dry cutting becomes an unavoidable assignment, and a lot of researches have studied cutting methods without using cutting fluid. Because dry turning is a continuous work, tools life is reduced by continuous heat generation and surface gets rough due to reduced lubrication, so it is important to consider these situations. In this paper, the way of selecting the optimal machining condition by the minimum number of experiments and the effectiveness of using compressed air in high hardness materials through Taguchi method have been found. Dry cutting using compressed air showed better cutting characteristics than normal dry cutting with respect to by cutting force, tool wear, and surface roughness. Also, the optimal machining condition for dry cutting using compressed air could be selected through Taguchi method.