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      • 地域施設 計劃에 關한 硏究

        孔章杓,金漢洙 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.10 No.1

        This study aims to investigate actual conditions of the supply of community facilities of cities in Korea and Japan, by surveying the number of facilities per unit population, and to obtains fundamental data for regional planning in Korea through comparative analysis. Followings are the results of above investigation ; 1) High correlations are found between population and number of facilities. 2) Facilities original unit are classified into four types according to the size of population and population density. 3) In general, facilities original unit and population per unit facilities stand higher level in Japan than in Korea, but some kinds of facilities stand almost the same level.

      • 敎育經營學의 硏究設計를 위한 模型構造의 硏究

        韓珙愚 慶熙大學校 1985 論文集 Vol.14 No.-

        Modern society has been formulated through economic development and thus industry and economic structure has been regarded as the backbone of modern society. When a society achieves a certain degree of development, the roles of the industrial entrepreneurship can play to drive economic development reaches a saturation point and then the prime role of economic development is passed to the educational system which provide new knowledge to the industry. In addition to this, when a society achieves such a high level of economic development that most of the members of the society can be satisfied with materials and services the industries can provide, it moves to a new stage of societal development called a post-industrial society.' In the post-industrial society, more emphasis is given to the betterment of quality of individual life including mental and spiritual aspect of life than to material provisions. In this case again the importance of education is more emphasized than any other social institutions since it is through education that individuals can improve his quality of life. Now in the latter part of the twentieth century already in the advanced industrial societies like the United States and the Western European countries education has occupied the largest proportion of the social investment and education has emerged to be the most important enterprise of the society. Though the quantity of the educational facilities and the size of the educational system has increased to meet the ever increasing social demand, however, the productivity of the educational enterprise is still staggering at the level of the past century. The low educational productivity may be attributable to the retarded development of educational management skills. In the industrial community, productivity or efficiency is regarded as the key factor for the good entrepreneurship. In the educational organization, however, still the management is mainly left to the hands of professional educators who are good as teachers or researchers but are not skilled to handle managerial work efficiently. To meet the demand of improving educational productivity a new academic discipline of the educational management has developed. In brief this new branch of academic descipline has been conceived to transplant the advanced 'know-how' of the business management into the educational system. There are many areas within the field of education where the same management techniques of business enterprises can be applied, ranging from educational planning, organization, evaluation and other policy making areas to the management of school system. The products of the educational system are educated men and those of the ordinary business firms are material goods or services. Thus there are natural limitations where the techniques developed in the businessarea can not be applied to the educational system. Therefore business management can not substitute educational management. Ⅱ The educational management is such a young discipline that even basic conceptual framework with which researches are to be conducted is not yet developed. The main purpose of this study is to put together various concepts, ideas and experiences in regard to the educational management which are scattered in the various books, articles and other literatures into one, attempting to formulate a skeleton of the discipline based on these fragmented bits of informations. Therefore, major effort was put to literature survey rather than to the rigorous analysis. To make the survey more comprehensive, the literatures of the adjacent fields of studies such as educational administration, sociology, psychology were also broadly scanned. This study is composed of five chapters. In the first chapter the outline of research design was introduced and the research techniques employed in this study were briefly discused. In chapter two, the very concept of educationa management was intensively analyzed. Here the concept was compared to the relatede concepts such as educational administration. Then in chapter three, various approaches available to tackle the problems of educational management were reviewed. Based on these a theoretical conceptual model for the study of educational management was constructed. Ⅲ Education being a common base of all functional substructure of the modern society, can not be separated from the social context. Educational management thus should be adjusted to ever-changing demands of the society. To make education more suitable to the demands of the contemporary society, those who are dealing with educational management should be sensible to the changing trends of social development. The discipline of educational management itself thus can not stand stand still; it should change continuously as the society moves ahead.

      • KCI등재

        AE기법 이용한 JLF/STS304이종재료의 최적 마찰용접조건에 관한 연구

        윤한기,이진경,이상필,공유식 한국비파괴검사학회 2003 한국비파괴검사학회지 Vol.23 No.2

        저방사화 페라이트강인 JLF는 핵융합로의 블랑켓과 같은 열교환기의 재료로써 유용한 재료이다. 이 재료의 광범위한 적용을 위해서는 JLF강과 다른 재료와의 접합기술의 개발이 중요하다. 최근 두 이종재료간의 접합에는 마찰용접이 많이 이용되고 있으며 본 연구에서도 JLF강과 STS304 간의 마찰용접에 의한 용접특성을 평가하였으며 특히 비파괴기법중의 하나인 음향방출 기법을 이용하여 두 이종재료간의 용접특성 및 최적의 용접조건을 평가하였다. 음향방출 파라미터중의 하나인 카운트와 사상수 등이 최적용접조건 및 용접품질을 평가하는데 유효한 파라미터들이었다. Japanese low activation ferritic steel(JLF) is a good material for the parts of heat exchanger such as blanket and diverter. At first, JLF was developed as a candidate for structural materials in nuclear fusion applications. However, the development of the jointing technique of JLF steel to other materials is important for wide applications of this material to the industry fields. Recently the jointing technologies including diffusion bonding, brazing, roll bonding, explosive bonding and hot iso-static pressing have been studied for the heterogeneous materials of JLF-1 steel(Fe-9Cr-2W-V-Ta) and stainless steel(STS304). Friction welding is one of the most popular welding methods for two different kinds of materials. In this paper, the JLF-1 steel was jointed to STS304 by friction welding method and the optimal conditions of the friction welding discussed. Acoustic emission was used as a nondestructive technique to evaluate the weld quality in processing.

      • 地域醫療施設의 供給水準에 關한 硏究 : 韓國과 日本의 比較分析

        金漢洙,孔章杓 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.10 No.1

        The purpose of this study is to acquire basic data of relief from interregional gap when planner establishes supplement program of Medical facilities trough relative analysis of Medical facilities in Korea and Japan. The result is this : 1. In Medical level, region exists 1-2 Medical facility is 「Rural form」and region exist more than 3 medical facility is 「Urban form」. 2. We know that Korea medical service level is lower than Japan's. 3. Establish clear-cut lines of Minimum unit of population in Medical facilities. 4. By taking advantage of theoretical Model, result of Analysis present a method of assess medical service facility in relation to population size.

      • 증발 표면적 증대를 위한 수적 분리기 특성에 관한 연구

        모종근,공태우,이광영,정효민,정한식,서정세 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-

        The purpose of this research is to obtain the characteristics of water-vapor separator for improving the evaporative surface. The experimental system is constituted with water vapor generator, vapor storage tank, laser source for visualization and camera for photography. The efficiency of water-vapor separator can be varied by the kinds of the inside materials. Thus, in this report, we introduced the three kinds of materials with wire scrap, wire brush and sponge. As the experimental results, the wire brush was showed the best efficiency with 185 g/hr.

      • KCI등재후보

        산업장 근로자의 표준체중치

        정종학,강복수,김석범,사공준,이정길,한구웅 大韓産業醫學會 1989 대한직업환경의학회지 Vol.1 No.1

        산업장 근로자의 건강증진과 노동력보존에 기여할 목적으로 경상북도 구미시에 소재하는 구미공단내의 20-29세 산업장 근로자 10,407명(남자 6,201명. 여자 4,206명)을 대상으로 1985년의 정기 신체 검사 자료로 부터 성별. 연령별 평균신장, 평균체중 및 신장과 체중간의 상관관계와 회귀방정식을 구하고 이들을 이용하여 신장별 표준체중과 이상체중의 범위를 구했으며 신장과 체중으로 BMI를 산출하였다. 20대 근로자의 평균신장은 남자가 168.2±5.61cm였고 여자는 155.9±5.26cm였고 평균체중은 남자가 61.4±6.56kg, 여자는 52.4±6.00kg이었다. 신장과 체중간의 상관계수는 남자의 경우 +0.541이었고 회귀방정식은 Y(체중)=0.637Ⅹ(신장)-44.975였으며 여자는 상관계수가 +0.559였고 회귀방정식은 Y(체중)=0.637 Ⅹ(신장)-46.898 이었다. 신장별 표준체중은 신장이 155cm일때에 남녀 각각 53.0kg, 51.8kg 이었으며 165 cm 일때는 59.3kg, 58.2kg이었고 175cm일때에 65.6kg, 64.6kg이었고, 정상체중의 범위는 신장이 155cm일때에 남자는 47.5-58.5kg, 여자는 46.9-56.8kg, 165cm일때는 남자는 53.8-64.8kg, 여자는 53.2-63.2kg, 175cm일때에 남자는 60.1-72.1kg, 여자는 59.6-69.6kg으로 평가되었으며, 비만은 신장이 155cm 일때에 남자는 64.1kg이상, 여자는 61.8kg이상, 165cm일때는 남자는 70.3kg이상, 여자는 68.2kg이상, 175cm일때에 남자는 76.7kg이상, 여자는 74.5kg 이상으로 평가되었다. 성별. 연령별 BMI는 남자가 21.7±1.95였고 여자는 21.6±2.05였고 Garrow의 BMI 분류방식에 따른 desirable range에 속하는 근로자는 남자가 75.9%였고, 여자는 71.3%였다. To contribute to promotion of health and preservation of labor power of Korean laborers, the body height and body weight were measured for 10,407 workers(6,201 male, 4,206 female) in the age group of 20-29, engaged in manufactures in the Gumi industrial complex, Gumi city, Kyungpook province. The above data were extracted from the 1985 periodic examination chart for calculation of the mean body weight, mean body height, correlation coefficient and regression equation between weight and height, standard body weight, body mass index(BMI) and distribution of laborers within Garrow's classification of BMI by age and sex group. Mean body height of 20-29 age group was 168.2±5.61 cm for male and 155.9±5.26 cm for female. Mean body weight of 20-29 age group was 61.4±6.56 kg for male and 52.4±6.00 kg for female. Correlation coefficient and regression equation of 20-29 age group were +0.541 and Y(Wt)=0.632X(Ht)-44.975 for male and +0.559 and Y(Wt)=0.637X(Ht)-46.898 for female. Standard body weight of 20-29 age group was 53.0 kg at 155 cm, 59.3 kg at 165 cm, 65.6 kg at 175 cm for male and 51.8 kg at 155 cm, 58.2 kg at 165 cm at 64.6 kg at 175 cm for female. Range of normal body weight of 20-29 age group was 47.5-58.5 kg at 155 cm, 53.8-64.8 kg at 165 cm, 60.1-72.1 kg at 175 cm for male and 46.9-56.8 kg at 155cm, 53.2-63.2 kg at 165 cm, 59.6-69.6 kg at 175 cm for female. Range of obesity of 20-29 age group was 64.1 kg and over at 155 cm, 70.3 kg and over at 165 cm, 76.7 kg and over at 175 cm for male and 61.8 kg and over at 155 cm, 68.2 kg and over at 165 cm, 74.5 kg and over at 175 cm for female. Body mass index(kg/m²) of 20-29 age group was 21.7±1.95 for male and 21.6±2.05 for female, 75.9% of male laborers and 71.3% of famale counterparts fall in the desirable range of BMI by Garrow's classification.

      • MUTYH Association with Esophageal Adenocarcinoma in a Han Chinese Population

        Kong, Feng,Han, Xue-Ying,Luan, Yun,Qi, Tong-Gang,Sun, Chao,Wang, Jue,Hou, Hua-Ying,Jiang, Yu-Hua,Zhao, Jing-Jie,Cheng, Guang-Hui Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.11

        Adenocarcinoma of esophagus (AE) is a complex disease, affected by a variety of genetic and environmental factors. Much evidence has shown that the MutY glycosylase homologue (MUTYH) plays a key role in the pathogenesis of many cancers. However, there have been no reports on influence on AE in the Han Chinese population. The objective of this study was to investigate this issue. A gene-based association study was conducted using three single nucleotide polymorphisms(SNPs) reported in previous studies. The three SNPs (rs3219463, rs3219472, rs3219489) were genotyped in 207 unrelated AE patients and 249 healthy controls in a case-control study using polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). The results revealed that the genotype distribution of rs3219472 differed between the case and control groups (OR=1.66,95%CI=1.11-2.48, P=0.012), indicating that an association may exist between MUTYH and AE. These findings support a signifcant role for MUTYH in AE pathogenesis in the Han Chinese population.

      • SCISCIESCOPUS

        Diversity of Coded Beamforming in MIMO-OFDM AF Relaying Systems With Direct Link

        Kong, Han-Bae,Song, Changick,Ahn, Minki,Lee, Inkyu IEEE 2015 IEEE Transactions on Vehicular Technology VT Vol.64 No.8

        <P>This paper investigates the diversity order of beamforming schemes in frequency-selective multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying channels with a nonnegligible direct link between the source and the destination. In this system, orthogonal frequency-division multiplexing and bit-interleaved coded modulation schemes are adopted to exploit multipath diversity. Due to a nonconvex property of the problem, the optimal performance of flat-fading MIMO relaying channels, which is imperative to derive the diversity order, is still unknown. To this end, we first identify upper and lower bounds of the signal-to-noise ratio (SNR) of the flat-fading channels, which lead to upper and lower bounds of diversity order of coded beamforming in frequency-selective channels. Then, we establish the diversity order as a closed form by showing that these bounds are tight. In addition, our analysis provides an insightful guideline for code constructions to achieve a proper diversity gain of the system. The accuracy of our analysis is validated through simulation results.</P>

      • SCISCIESCOPUS

        Shaping-Power-Constrained Transceiver Designs for MIMO AF Relaying Systems With Direct Link

        Han-Bae Kong,Changick Song,Haewook Park,Inkyu Lee IEEE 2015 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS Vol.14 No.1

        <P>In this paper, we propose new relay transceiver designs based on the minimum mean square error (MMSE) criterion for amplify-and-forward multiple-input-multiple-output (MIMO) relaying systems with direct link. Since each antenna element is equipped with its own power amplifier, a norm power constraint, which restricts the transmit power with the expected norm of the transmit signal vector, is not suitable for practical systems. Therefore, we consider a shaping constraint (SC), which imposes a limit on the shape of the transmit covariance matrix. The SC includes several power constraints such as the peak power constraint and the per-antenna power constraint as special cases. To this end, we first derive the optimal structure of the MMSE relay transceiver under the SC. Then, by introducing an upper bound of the mean square error, we provide closed-form relay transceiver solutions. Due to limited bandwidth of the feedback channel, perfect channel knowledge at the transmitter may not be feasible. Thus, we also propose a quantized relay transceiver design based on Grassmannian codebooks for a limited-feedback scenario. From simulation results, it is confirmed that the proposed relay transceiver techniques demonstrate a significant performance improvement compared with conventional schemes.</P>

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