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        검색결과 45

        21.
        2013.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        바이폴라막을 이용한 전기투석공정은 의약산업, 음식산업 등과 같은 고부가 가치산업에 이용되어 왔으며, 용액으로부터 산 또는 염기를 생산하거나 회수할 수 있는 공정으로 많은 각광을 받아왔다. 전기투석공정은 경제적이며 친환경적인 시스템으로 이온교환공정, 추출공정, 흡착공정과 같은 타 공정과의 복합화가 가능하다. 따라서 본고에서는 이온교환막과 이를 이용한 잠재성을 가진 응용분야에 대하여 조사하였다.
        4,500원
        23.
        2012.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        최근 들어 혼합된 수용액으로부터 이온성을 가지는 부류의 물질들을 분리하기 위한 갖가지 화학적 물리적 방법들이 이용되어 왔다. 그중 분리막 접촉기를 이용한 막 투과추출공정은 오폐수와 같은 오염물 안의 중금속, 탄화수소계열 물질들을 투과추출 공정에 의해 회수할 수 있기 때문에 의약, 석유화학, 화공분야에서 분리시스템 그리고 회수를 위한 대안으로서 각광받아 왔다. 또한 투과추출공정은 쉬운 구동, 낮은 에너지 소모, 낮은 운영비, 높은 선택도와 같은 장점을 가지고 있다. 따라서 본고에서는 투과추출공정용으로의 응용을 위하여 그동안 개발된 분리막의 몇 가지 예와 그들의 성능에 대하여 조사하였다.
        4,600원
        27.
        2012.03 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        Hydrogen is in the spotlight as an alternative next generation energy source for the replacement of fossil fuels because it has high specific energy density and emits almost no pollution, with zero CO2 emission. In order to use hydrogen safely, reliable storage and transportation methods are required. Recently, solid hydrogen storage systems using metal hydrides have been under extensive development for application to fuel cell vehicles and fuel cells of MCFC and SOFC. For the practical use of hydrogen on a commercial basis, hydrogen storage materials should satisfy several requirements such as 1) hydrogen storage capacity of more than 6.5wt.% H2, moderate hydrogen release temperature below 100˚C, 3) cyclic reversibility of hydrogen absorption/desorption, 4) non toxicity and low price. Among the candidate materials, Li based metal hydrides are known to be promising materials with high practical potential in view of the above requirements. This paper reviews the characteristics and recent R&D trends of Li based complex hydrides, Li-alanates, Li-borohydrides, and Li-amides/imides.
        4,000원
        28.
        2009.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The contra-sexual phenomenon that is recently focused is one of the new factors, which is focused when explaining the life style of progressive woman’s image and it is creating cultural category. Moreover, the contra sexual people that are rising as new consuming subjects are not simple primary consumers but their shopping culture and cultural tastes are giving effects to many people. Because of the tendency, marketer of consuming industry are making efforts to predict the changes of contra-sexual people’s shopping habits and tastes. Therefore, it is necessary to grasp contra-sexual phenomenon and research the fashion design aiming at that in order to predict woman’s fashion image in the future. Therefore, the study considered concept and characteristic of contra-sexual phenomenon and surveyed its example in the popular culture. And, the study analyzed the formative characteristic of contra-sexual fashion shown in the public cultures such as drama and movie. On the basis of the result, design was suggested by reflecting contra-sexual fashion characteristic under the concept of ‘Urban Splendor’. From the results above, it was possible to grasp the concept and characteristic of contra-sexual phenomenon, which appeared as a trend and understand new woman’s image and the fashion that has changed because of it. It is considered that the establishment of the foundation of contra-sexual phenomenon, which plays as an important variable in woman’s fashion, fashion accessory, cosmetic and advertisement field but it is hard to clarify, by analyzing the work aiming at contra-sexual phenomenon will be helpful for predicting the change of woman’s fashion in the future.
        4,500원
        30.
        2006.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        나노섬유란 1μm 이하의 섬유를 의미하며 멜트블로운(Melt blown), 복합방사, 분할방사, 전기방사 등의 방법으로 제조된다. 나노섬유는 초극세 섬유로서 섬유의 생성과 동시에 3차원의 네트워크로 융착되어 적층된 형태의 다공성 웹은 초박막, 초경량이며 기존 섬유에 비해 부피 대비 표면적비가 지극히 높고, 높은 기공도를 지니고 있다. 이러한 특성으로 인해 가스나 액체로부터 미세입자를 분리하는 고효율 초기능성 필터 소재로 활용될 수 있으며, 나노섬유로 구성된 필터는 여과 효율이 높고 공극율이 매우 높아 필터에서 발생하는 압력강하가 적다. 또한 공정의 적용이 용이하여 기존의 부직포 등의 소재에 코팅이 가능하므로, 나노섬유 필터는 기존 부직포 필터 시장의 대부분을 대체할 것으로 기대되어 진다. 본 총설에서는 나노섬유 필터의 연구개발 동향과 공업적 제조기술의 문제점 및 향후 시장성에 대해서 고찰하였다.
        4,000원
        31.
        2005.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In these days, there is doubt about the effectiveness of ISO-9000 and ISO-14000 which are generally introduced in korean corporation by the consensus and even by corporations themselves. In order to find out the reason about the doubt, we should unterstand the present situation, and concider what countermeasure shall we take. It's obvious that if there is no doubt about the effectiveness and availability for quality system authenticated and verified by the international, then all the authentication can be made from that excellent system. In that case, it is necessary to find out wheather it only exists in Korea or it genally exists internationally. This thesis considers the problems and try to search for a system management project and measure which is suitable for Korea.
        5,100원
        32.
        2005.05 구독 인증기관 무료, 개인회원 유료
        In these days, there is doubt about the effectiveness of ISO-9000 and ISO-14000 which are generally introduced in korean corporation by the consensus and even by corporations themselves. In order to find out the reason about the doubt, we should understand the present situation, and consider what countermeasure shall we take. It's obvious that if there is no doubt about the effectiveness and availability for quality system authenticated and verified by the international, then all the authentication can be made from that excellent system. In that case, it is necessary to find out whether it only exists in Korea or it generally exists internationally. This thesis considers the problems and try to search for a system management project and measure which is suitable for Korea.
        4,600원
        34.
        2000.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        5,200원
        36.
        2023.05 서비스 종료(열람 제한)
        With the evolution of industrial structure and industrialization in developing countries, some trade has become intra-industry between developing and developed countries. The level of intra-industry trade between China and South Korea has also become an essential indicator of the country’s economic development and industrialization. Since the establishment of diplomatic relations between China and South Korea in 1992, bilateral trade between China and South Korea has steadily developed, and the “Belt and Road” initiative proposed by China in 2013 and the official signing of the China-South Korea Free Trade Agreement (FTA) in 2015 have provided a good platform for the development of trade between China and South Korea. In 2017 South Korea proposed in 2017, South Korea proposed the “New North Policy”, and China and South Korea agreed to dovetail the “Belt and Road” and the “New North Policy” to achieve a superior development of China-Korea trade. However, there are still problems, such as trade imbalance and a need for a two-way flow of investment between the two sides. This paper examines the existing problems in developing China-Korea import and export trade through developing China-Korea intra-industry trade in the new era. It suggests accelerating the sustainable development of China-Korea trade from the perspectives of strengthening trade communication between the two sides and accelerating Chinese enterprises’ investment in Korea.
        37.
        2020.02 서비스 종료(열람 제한)
        Since the formation of competency theory in 1970s, this theory has greatly promoted the development of human resource management theory and practice. Based on the literature retrieval of CNKI and with the help of the visual analysis tool of CNKI, this study organizes, summarizes and analyzes the track, characteristics, current situation and trend of competency research. It is found that since the beginning of this century, especially in 2010, the research results of competency have been on the trend of blowout, the number of research results has increased linearly, the research field has gradually expanded, and the research methods have become more rich and varied. The basic research on the concept, characteristics, structure and role of competency has been basically completed, and the construction of competency models for different industries and posts has also made great progress. The relationship between competency and related factors has gradually entered the researchers' vision. At present, researchers have strong interests in the relationship between competency and its pre and post factors, as well as its mechanism. At the same time, the vision of competency research has gradually expanded from employees to groups, organizations, enterprises and even national global talent cultivation. However, when competency research is in the ascendant, some scholars have pointed out the limitations of competency on performance prediction through empirical research, calling for a higher level of interpretation of human resource management theory.
        38.
        2017.06 KCI 등재 서비스 종료(열람 제한)
        Sustainable development is no longer an option, but a requirement. Under this awareness, UN adopted 17 goals for a new sustainable development agenda on September 2015, named ‘Sustainable Development Goals(SDGs)’. The Korean Society of Rural Planning(KSRP) is established on July 1994 for the sustainable development of rural areas. On the purpose to quantitatively analyze the research trend of KSRP’s publications with the viewpoint of SDGs, the qualitative documents of 17 SDGs and 771 publications were mathematically transformed into vectors and the similarity was numerically measured with the ‘Vector Space Model(VSM)’. The results show that ‘Sustainable cities and communities(SDG 11)’, ‘Zero hunger(SDG 2)’, ‘Life on land(SDG 15)’ and ‘Responsible consumption and production(SDG 12)’ have strong relationships with KSRP, while those of ‘Affordable and clean energy(SDG 7)’, ‘Peace, justice and strong institution(SDG 16)’ and ‘Gender equality(SDG 5)’ are weak. It is also found that the relationships of KSRP publications with ‘energy’ and ‘climate change’ issues(SDG 7, 13) were greatly increased during the period of 1995-2016, in spite of their weak relationships.
        39.
        2016.10 서비스 종료(열람 제한)
        Recently, wind turbine industry have received more attention than before. Many countries including South Korea focus on the offshore wind turbine because of its geographical advantage. However, domestic technique level is much lower than that of advanced countries such as Europe. In this study, analysis on development trend of offshore wind turbine and design standard in Europe is carried out to develop the original design standard.
        40.
        2015.10 서비스 종료(열람 제한)
        The purpose of this study is to analyze the trend of domestic and foreign steel plate shear wall (SPSW) systems. The investigated countries were three, such as Korea, Canada, and U.S. The full scale or scale down specimens were preponderantly investigated. The details and performances of all specimens were compared for each other.
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