$Si_3N_4/SiC$ Nano Composite의 제조

이수영,이한섭,Lee, Su-Yeong,Lee, Han-Seop 한국기계연구원 1993 硏究論文集 Vol.23 No.-

$Si_3N_4/Sic$. nano-composites were fabricated by hot-pressing, gas pressure sintering. The composites contained up to 50 wt. % of SiC. The mechanical properties such as strength, toughness, and hardness of the composite are compared each other. The flexural strength of the composites was improved significantly by introducing fine SiC particles into $Si_3N_4$ matrix, while the fracture toughness was not improved. The increase in flexural strength is attributed to the formation of uniformly elongated $\beta -Si_3N_4$ grains as well as the reduction of grain size.

축출 우선순위 트래픽 제어 메카니즘의 성능 분석에 관한 연구

이수영,이혁진,오민웅,박광채 조선대학교 동력자원연구소 1994 動力資源硏究所誌 Vol.16 No.2

본 논문에서는 다중의 우선순위를 지원하는 통신망에 확장시켜 적용할 수 있는 Markov chain을 이용한 축출 우선순위 트래픽 제어 메카니즘의 해석방법을 제안하였다. 제안한 해석방법을 전체 버퍼의 크기, 트래픽 세기, 우선순위 트래픽의 혼합비 등을 가변하면서 두개의 우선순위를 지원하는 ATM 망에 적용한 결과 트래픽 세기가 0.5∼0.8일 때 전체 버퍼의 크기가 25정도이면 서비스 품질을 만족하였다. 그러나 다중 우선순위 제어에서는 할당된 우선순위의 수와 우선순위 트래픽의 혼합비 등이 손실에 많은 영향을 미친다는 것을 알 수 있었다. 또한 기존의 해석방법에 비하여 간단하면서도, 비교적 정확한 결과를 얻었으며 임의의 우선순위를 지원하는 통신망에 신축성있게 적용할 수 있음을 알았다. 제안한 해석방법은 시뮬레이션 전용언어인 SIMSCRIPT II.5로 시뮬레이션을 수행하여 결과의 타당성을 강조하였다. In this paper, we propose the analysis method of extended push-out priority traffic control mechanism which can be applied to the network supporting multiple priorities, using Markov chain. When proposed analysis methods are applied to ATM networks with two priorities as varying buffer size, traffic intensity and mixing ratio of priority traffics, as a result, it satifies the quality of service when the buffer size is 25 in traffic intensity 0.5∼0.8. But, in the case of multiple priority control mechanism, the number of assigned priorities and the mixing ratio of traffic affect the loss probability. Also we get very simple and more exact results compared with conventional analysis method and know that the proposed analysis method is flexibly applied to the network with multiple priorities. To verify the proposed analysis method, we perform the simulation using the SIMSCRIPT II.5 simulation package.

신장이식 환자들의 면역억제제 복약에 대한 이해도 및 이행도에 관한 조사

이수영,이주연,김경희,한현주,박경호,이병구,조남춘 한국병원약사회 1998 병원약사회지 Vol.15 No.1

Survey on comprehension and compliance of immunosuppressant medication was conducted in 97 kidney transplant recipients at the organ transplant clinic in Seoul National University Hospital from Septemer 23 to October 25, 1996. Medication teaching and patient counseling pharmacist consulted with patients by direct or telephone communications and checked medical records of them to find whether the patients understand about their medications, such as drug name, the reasones of medications, side effects, etc. From the present survey, it was noticed that noncompliance was 9.7%, which was lower percent than that of other reports or other diseases. Also the compliance was not effected significantly by ages(p=0.46) or duration of post-transplantation(p=0.148). The most of patients understood well about immunosuppresants which were administered to them, such as the drug name(98%), dosage form and content(96%) and variable adverse effects, but they didn't understand about the importance of therapeutic drug monitoring(TDM) of cyclosporine and blood sampling condition (fasted). Also they understood well about the risk of the co-administration of other drugs(98%) and 47% of them knew that the reasons of risks were resulted from drug interaction. From the results of present study, it was found that noncompliance of immunosuppresants was low percent, but in order to maximize long-term renal allograft survival, the pharmacists must instruct the organ transplant patients about various informations which they didn't understand, such as TDM and drug interactions.

깔뱅에 있어서의 경건의 개념

이수영 장로회신대학교 1995 敎會와 神學 Vol.27 No.-

情報都市의 經濟社會와 空間構造

이수영 부산대학교 사회과학대학 1993 社會科學論叢 Vol.12 No.1

The developed world of today is still in transition from an industrial to an information economy where information becomes the most important commodity. The introduction of ever more powerful information into the manufacturing process substitutes this technology, based on robotics and automation, for labor and traditional energy-intensive capital. Another involves the substitution of knowledge and intelligence for some material and energy resources, thus achieving the more efficient design of products, greater knowledge of their markets, and tighter planning and operation of their production and distribution processes. These two changes are also facilitating the shift to increased quality, diversity, and "personalization" of the products involved. One consequence of automation is a reduction of employment in manufacturing industries. The shift to information economy is facilitating much greater informality in the spatial organization of activities, with the formation of multiple center in metropolitan areas combined with greater spatial integration of commercial, residential, and recreational activities. Much greater speeds and capacities for moving information, people, and goods are allowing better coordination of commercial activities and greater integration of production, communication, and information processing, leading to increasing integration of functions within the urban system. There is greater freedom in locational choice for individuals who seek urban, rural or recreational amenities; for some non-routine functions such as research, design, and education, the locational sequence of cause and effect is being reversed, as jobs follow people into high amenity areas. Yet the transition has its negative side. Greater income disparity, rising unemployment through the mismatch of jobs and skills, alienation in the working environment and in society generally, and other social problems in the community and metropolitan areas: all these bring inexorable demands for more institutions and procedures to engender greater security and community support. Thus, as well as changing and ameliorating old urban problems, the transition is generating new ones. Telecommunications networks are facilitating the global organization of industry, the rise of global markets for finance, securities, and commodities, and further growth of cities at the hubs of these information networks. These high-speed networks, consisting of both telecommunications and high-speed personal transportation, are becoming the new trade routes of the twenty-first century. Resources are shifting to the information based industries, which in turn are attracted to the global cities at their nodes. And the traditional global trade centers-New York, London, Tokyo, and Paris- have so far emerged as the most significant nodes of these information exchange. The present concerns for international cooperation spring from the contamination of our atmosphere, land, and water by industrial and urban wastes, while their impacts on climate change are likely to prove even more significant. Urban activities involving transport, the heating and cooling of buildings, and the fuelling of production processes, are major contributors to this global warning or "greenhouse effect". Yet the new technology also offer the potential for controlling the green house effect: through new forms of emission control, the substitution of more efficient transport and energy forms, the use of telecommunication to substitute for some travel, and the application of information systems to conserve materials and energy. Life in the twenty-first century can be expected to be richer in information and knowledge, and more recreationally diverse; a wider range of lifestyles and living environments will become possible. Cities in the twenty-first century will characterized by much greater rates of change, set in motion by the increasing speed of development of new technologies. The urban future, however, contains a number of major paradoxes; increasing information but increasing uncertainty; increasing diversity of lifestyles but differences in income and opportunity between the information-rich and the information-poor, both locally and globally; increasing efficiency and quality in production of goods and services but increasing constraints on energy and resources. Limited forays into predicting the form and structure of early twenty-first century cities are both possible and necessary. We can identify present trends, work them through to their "logical" conclusions, and thus develop a framework within which we can anticipate problems and develop solutions for future cities. There is no one agreed approach to assessing the impact of new information technologies on spatial from; rather, they demonstrate the value of pursuing many different methods, which individually amy detect some facet of the urban future, and which complement each other in building up a synthetic picture of the twenty-first century city.

發展途上 都市의 管理向上

이수영 釜山大學校行政大學院地方行政硏究所 1994 地方과行政硏究 Vol.6 No.1

간(肝) 지방(脂肪) 침윤(浸潤)에 대한 초음파(超音波) 소견(所見)과 혈액(血液) 생화학적(生化學的) 검사(檢査)의 상관관계(相關關係)에 관한 연구(硏究)

이수영,문수형,이화숙,김경희,김강석,Lee, Soo-Young,Moon, Soo-Hyung,Lee, Hoa-Suk,Kim, Kyeong-Hee,Kim, Kang-Seuck 한국생명보험의학회 1985 保險醫學會誌 Vol.2 No.1

In medical selection of Daehan Education Insurance, We doubted that 140 cases(male 117 cases, female 23 cases) might have the fatty infiltration of the liver by ultrasonography. We examined the weight and the hypertension of 140 patients by biochemically analyzing the blood extracted under fasting according to the age-distribution. The results are as follows: 1. 90% out of them had body weight than normal subject. 34.29% out of them were hypertension patients and most of them were $30{\sim}39's$ and $40{\sim}49's$. 2. As compared with the normal subjects in serum lipid value, HDL cholesterol value was low, but total cholesterol, Triglyceride, phospholipid and total lipid value were significantly high. Especially the statistical value of Triglyceride was very significantly high. 3. Total abnormal rate of sGOT value in Liver function test is 34.43% and the mean value of it is 66 unit and the abnormal rate of sGPT value is all 3.14% and the value of it is 70 unit. 4. The abnormal rate of Alkaline phosphatase value is 9.29% and the abnormal rate of total Bilirubine value is 14.29%. As HBsAg positive rate is 2.14% and HBs Ab positive rate is 31.43%, the positive rate of HBsAg represents Lower positive rate than Korean mean value. 5. The abnormal rate of the fasting blood glucose is 15.00% and the abnormal rate of Blood sugar pc 2hrs is 30.71%. 6. The abnormal case of protein, Albumin, Globulin, BUN, craetinine and Hemoglobin value was not found to any of them and in the above liver function test except serum lipid value, the rate not showing the abnormal value represents 45.3%(male) and 52.17%(female).

佛獨 行政의 特異性과 유럽 聯合

이수영 부산대학교 사회과학대학 1997 社會科學論叢 Vol.16 No.1

French public administration has recently been involved with the concepts of efficiency, user involvement, accountability, speedy decisions, responsiveness and so on. Surrounded with a number of conflicting demands, bureaucrats feel uneasy. How can better quality be achieved when scare human resources or political pressures hinder the recruitment of qualified personnel? How can efficiency be improved when legal rules or the veto from labor unions prevent the giving of rewards to hardworking employees? Civil servant are now paying the price of sweeping change affecting the relationship between state and civil society. Sectoral and local demands are invading field services whose technical expertise is now challenged by private business or by local authority staffs. Traditional sources of administrative legitimacy, such as public service or general interest, are still strong, but civil servants have lost their privileged social status. These trends could be analyzed as a democratization process, a standardizing mechanism adjusting French public administration to EU integration and the pluralistic political market. From another perspective, social structures in the higher civil service ranks remain untouched and that elites' networks are more closely linked than ever. It is hard to predict whether the traditional separation-confusion cycle between polities and public administration will give way to another statist interpretation of political life or to a real policy-centered model implying some kind of politicized managerialism. Change dynamics can be found in building administrative rationales that articulate professional perspectives and social understanding of what a good civil service is supposed to be. This means that public administration change is triggered by external and internal pressures. French administrative modernization policy was triggered by a clear political will from 1988. Nevertheless, this reform would be inoperative without structural changes that allowed civil servants to change their career strategies and professional values. Micro changes produced by pressures from private business, politicans or voluntary associations, cannot involve macro structural changes without translation features. This process is operated through channels allowing specific information to circulate between policy-markers and civil servants. The implicit function of public administration in social and political arenas are important. As long as French public administration offered a promotional way for the middle class and a counterweight to political instability, civil servants were highly motivated to defend themselves against competing social groups and demands through administrative law and professional rules. When there was governmental stability during the Fifth Republic, they could heighten their expertise in policy-making, devoting less attention to legal safeguards. When political stability and social consideration disappeared in the 1980s. they realized that they were supposed to behave as common wage-earners do. Most of significant traits of the German administrative system can be found in other countries, too. In all western democracies, administration is bound by law. Nevertheless, peculiar German trait is the legalistic approach of the administrative culture. When political control breaks down, role understanding and decision-making behavior might be different in Germany than in the US or the UK. The existence of administrative courts and the predominantly juridical training are also leaving their imprint. Probably more distinctive is the historical development of the relationship between politics and administration in Germany. In contrast to the Anglo-Saxon heritage, German bureaucracy preceded democracy. This has had a lasting impact on the importance attributed to expertise and the low degree of lateral mobility between politics and administration. Also, only the public offices at the top are elective or staffed with appointed political executives. Aspects of parliament-executive relationships display the "strong state tradition", i.e., the tradition of a strong civil and military bureaucracy ; for instance, the lack of comprehensive access of parliamentary investigation committees to government records. Similarly, the absence of a freedom of information act could be perceived from the perspective. There is subtle resistance to the public sector reform. Germans settled for middled-range fiscal planning instead of PPBS and the bureaucracy never experienced a shake-up in recent years. Privatization did not become so important as it had in other countries. Closely connected with and resulting from these elements of the administrative culture is the absence of bureaucrat-bashing by politicians. On the contrary, leading politicians of all parties have repeatedly appreciated the excellent work of the federal bureaucracy in drafting the unification treaty with East Germany ad the service that 25,000 Western bureaucrats are doing in the East. This does not, of course, exclude the criticism of "the state apparatus" and "bureaucracy" among the intelligentsia in the universities. Party-politicizing the personnel policy in administration is not a new phenomenon in Germany, but the extent to which it has been done during the last two decades and its candid admission is new. On the one hand, the blame for this is put on the politicians ; on the other hand, it might be asked if this tendency, together with the academization and professionalization of politicians, their predominant legal training and civil service background, does not contribute to a further bureaucratization of politics.

Adaptive learning based on bit-significance optimization of the Hopfield model and its electro-optical implementation for correlated images

이수영,심창섭,장주석,신상영 대한전자공학회 1989 대한전자공학회 학술대회 Vol.1989 No.1

89년 사상투쟁, 그 실천적 귀결

이수영 경기대학교인문대학중어중문학과 1990 大陸風 Vol.1 No.-