• Title/Summary/Keyword: 전개장치

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Study on the Total Analyses of Cake Filtration with Filtration-Permeation Method (여과-투과 방법에 의한 케이크 여과의 전체적인 해석)

  • Yim, Sung-Sam;Song, Yun-Min
    • Journal of Korean Society of Environmental Engineers
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    • v.29 no.1
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    • pp.74-81
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    • 2007
  • Using the new experimental method named "filtration-permeation", the average specific resistances which plays an important role in designing cake filtration apparatus and the development of cake filtration theory were measured in this study. By this new experimental method, two kinds of average specific resistances are measured. The one from the filtration is named 'filtration average specific resistance $\alpha_{avf}$, and the other from the permeation of particle eliminated water through the pre-formed cake is named 'permeation average specific resistance $\alpha_{avf}$. The "filtration-permeation" method is applied to three different kind of suspensions(i.e. particulate suspension, pre-flocculated suspension and macro-molecule suspension) to obtain filtration and permeation average specific resistances. A theoretical procedure of cake filtration is studied based on the values of permeation average specific resistance. With the study it was concluded that the influence of the sedimentation during particlulate filtration operation could not be ignored as commonly used. And the solid content of suspension, S, which also regarded usually as constant, changes during filtration of particles. It is also verified that the exact value of solid content of cake for floe filtration could not be obtained. These significant problems are all solved by our new "filtration-permeation" experimental method.

The Evolution of National R&D Performance Evaluation System in Korea during the Period of 1999-2013 (한국의 국가연구개발 성과평가(1999~2013) 전개와 특징)

  • Bae, Junghoe;Chung, Sunyang;Seong, Jieun
    • Journal of Technology Innovation
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    • v.22 no.4
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    • pp.165-198
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    • 2014
  • The national R&D performance evaluation system in Korea has been influenced by 'New Public Management' since the 1980s. The 1997 IMF crisis in Korea has necessitated the overhaul of S&T policy strategies in Korea. Reflecting this, effective distribution and utilization of S&T investment and resources has emerged as a crucial policy agenda, while expansionary investment in S&T maintained. During the period of 1999-2005, the R&D evaluation has been more focused on the input side and execution processes than on the results of R&D. Evaluation results were to be reflected in the budgeting of national R&D, but there were some disputes over how to make use of evaluation results between the budgeting ministry and the evaluation agency partly because they were two separate entities. After the advent of the new government(1998-2003) which advocated 'science and technology-oriented society', the national R&D evaluation system has evolved through a new legislation, the Performance Assessment Act, and the establishment of Science & Technology Innovation Agency to build up the unique framework for national R&D evaluation differentiated from the assessment system for general government investment programs. Most recently, due to 'Comprehensive Improvement Plan' in 2013, various components of national R&D evaluation seem to move on a new evolutionary track. For example, different types of evaluation are being developed and tried in accordance with differing evaluation goals, and the individual ministries and the research councils has got more enhanced autonomy and responsibility regarding R&D evaluation. So-called 'tailored' evaluation methods, taking into consideration the characteristics of programs and institutes / organizations to be evaluated, are now being tried. Competences of evaluation experts and agencies has also to be improved and strengthened.

A Study on Institutional Improvement for effective Operation of Korea's Free Economic Zone (한국의 경제자유구역의 효율적 운영을 위한 개선과제에 관한 연구)

  • Hong, Song-Hon;Lee, Jae-Young
    • International Commerce and Information Review
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    • v.13 no.2
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    • pp.235-258
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    • 2011
  • Our country is operating designating the 6 free economic zones. Korea has designated fixed areas as economic special zones and made their management and living conditions equivalent to the level of advanced countries they are to support. One-Stop Service for the administrative demands that require the assistance at a national level in foreign investment, education, finance etc. However, these free economic zones are modified by regional development projects rather than inviting foreign capital. For the free economic zones to be operated effectively, the following methods should be followed: first, active management support activities should be constructed for the purpose of attracting foreign capital, second, a business model specifically designed to attract foreign capital should be implemented, third and finally, the independence and professionalism for the free economic zones should be strengthened.

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The Settlement of Complication in Water Resources Project (수자원 사업분야의 갈등해결 방안)

  • Park, Joo-Bum;Kim, Man-Ki
    • Proceedings of the Korea Water Resources Association Conference
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    • 2007.05a
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    • pp.1645-1649
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    • 2007
  • 수자원사업분야 특히, 댐건설사업은 사업시행지역이 유역의 상류인 반면 댐건설의 편익은 주로 하류지역에서 발생하기 때문에 상류지역을 중심으로 극심한 반대가 상존하고 있는 실정이다. 상 하류 지역 주민과 지자체 간에도 댐건설에 대한 입장이 상충되고, 이런 갈등을 정치적으로만 해결하려고 함으로써 갈등의 해결보다는 오히려 새로운 갈등의 원인이 되기도 한다. 또한, 갈등해결을 위한 사회적 합의와 그 합의 결과에 대한 승복의 문화가 정착되지 않은 우리나라에서 갈등해결은 매우 어려운 실정이다. 지난 7년 동안 사회적인 찬반 논란의 중심에 있었던 한탄강홍수조절댐건설에 따른 갈등의 전개과정과 해결노력을 평가 분석하여 봄으로써 향후 수자원사업 분야의 갈등해결에 많은 도움이 될 것으로 본다. 한탄강홍수조절댐은 지난 1999년 결정 이후 2004년 1월부터 11월까지 대통령자문 지속가능발전위원회와 이해 당사자가 참여하는 중재적 갈등조정과정을 거쳤으나, 조정 결과에 대해 승복하지 않음으로써 당사자 합의에 의한 최초의 갈등조정 시도가 무산되었으나 그 해결 노력은 정당하게 평가 받을 만하다. 이후 한탄강댐건설사업은 정부에서 국무총리를 위원장으로 하는 임진강유역홍수대책특별위원회를 구성하여 이해 당사자를 배제하고 관련학회의 전문가 등으로 1년 동안 검증평가한 결과 2006년 8월 한탄강홍수조절댐과 천변저류지로 최종 대안을 제시하였으나, 댐건설 반대지역에서는 아직도 완전히 승복하고 있지 않는 실정이다. 결국 갈등을 해결하기 위해서는 사업계획 수립단계부터 이해 당사자들이 참여하는 협의회 운영으로 절차적 정당성을 확보하고, 한탄강홍수조절댐 갈등해결에 있어서 부족했던 사회적 합의와 승복문화가 정착되도록 제도적인 장치보완과 함께 성숙된 시민의식의 전환이 있어야만 할 것으로 사료된다. 외적으로 하천 유사량 산정과 관련된 많은 경험식들이 제시되고 있다. 하지만, 외국의 충적하천에 기초하여 개발되어진 유사량 공식들을 우리나라 하천에 무분별하게 적용하는 것은 위험스러우며, 유사량 산정 결과의 신뢰성을 높이기 위해서는 무엇보다 우리나라 하천의 지형, 수리, 수문학적 요소들이 유사 특성에 미치는 영향을 알아야 한다. 그러므로, 본 연구에서는 실측을 통한 유사량 값을 하천의 지형, 수리, 수문학적 요소들과 비교 분석하여우리나라 하천에 맞는 유사특성을 알아보고, 기타 총유사량산정 공식을 이용하여 실측한 유사량과 비교 분석하고자 한다.호강유역의 급격한 수질개선을 알 수 있다.世宗實錄) $\ulcorner$지리지$\lrcorner$(地理志)와 동년대에 동일한 목적으로 찬술되었음을 알 수 있다. $\ulcorner$경상도실록지리지$\lrcorner$(慶尙道實錄地理志)에는 $\ulcorner$세종실록$\lrcorner$(世宗實錄) $\ulcorner$지리지$\lrcorner$(地理志)와의 비교를 해보면 상 중 하품의 통합 9개소가 삭제되어 있고, $\ulcorner$동국여지승람$\lrcorner$(東國與地勝覽) 에서는 자기소와 도기소의 위치가 완전히 삭제되어 있다. 이러한 현상은 첫째, 15세기 중엽 경제적 태평과 함께 백자의 수요 생산이 증가하자 군신의 변별(辨別)과 사치를 이유로 강력하게 규제하여 백자의 확대와 발전에 걸림돌이 되었다. 둘째, 동기(銅器)의 대체품으로 자기를 만들어 충당해야할 강제성 당위성 상실로 인한 자기수요 감소를 초래하였을 것으로 사료된

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A Study on M. Scheler's Theory of Perception (막스 셸러의 지각론 연구 - 활력적 충박과 감각지각의 관계 연구 -)

  • Kum, Kyo-young
    • Journal of Korean Philosophical Society
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    • v.130
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    • pp.23-45
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    • 2014
  • It can be said that Scheler's theory of perception is the theory of drive-conditioned perception, in more detail the theory of drive-motoric conditions of perception. Scheler tells us that Immanuel Kant and Ernst Mach were mistaken in their assumption that sensations are purely receptive and primary in all experience. He claims that sensations are not primary but subsequent to a subliminal attention of vital drives(called 'Vor-Liebe und Vor-Interesse' by him). And because sense perception cannot take place without a vital energy of drives that account for the ongoing activity of perception, no object can be perceived unless it stimulates movement in an organism which exercises a count-movement against objects and thereby resisting objects. According to Scheler, an order of foundation such as the preexistence of images prior to perception; the priority of perception with regard to functions of senses; the priority of sense functions with regard to sensations has to be kept in mind. And it has to be kept in mind that the essence of life is pre-empirical, is pure becoming(Werden) and unbecoming(Entwerden), a process in which its two empirical sides are not yet separated. Then it is easy to see that perception is conditioned by vital drives. The drive-conditioned theory of perception is also supported by the fact that the motility of an organism determines its sensory apparatus, an organism has an alphabet of senses that can serve as signs of luring and noticing objects that are meaningful for its drive-motoric behavior. For example a lizard remains undisturbed by a gun shot but runs away from the slightest noise in the grass.

A Study on Jin Tai Quan Zhuan (金臺全傳): A Narration in the Form of a Xylographic Book (한국 소장 『김대전전(金臺全傳)』의 판본과 서사 연구)

  • Kim, Myung-Sin
    • Cross-Cultural Studies
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    • v.41
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    • pp.85-112
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    • 2015
  • This article studies The Complete Story of JinTai(金臺全傳), a Korean and Chinese xylographic book, and wishes to makes a case for the value of this work. The Complete Story of JinTai, is an anonymous Xia-Yi (俠義) novel from the late Qing Dynasty. The oldest edition is at Nanjing Rare Book Library. This work was published in 1881 when Emperor Guangxu (光緖) ruled China. Currently, a copy of this book is at the Kookmin University Rare Book Library, however, it is somewhat different in form from that in the Nanjing Library. But it is almost the same story. The Complete Story of JinTai narratives the life story of the hero, Jintai (金臺). Jintai's appearance, alliance, ordeal, contribution, and return proceed sequentially, thus, the story gradually explicates Jintai's heroic aspects. Jintai is a young hero. Exceptionally, he married an official dancing girl. He values honor, hangs out with friends, slays a wicked villain, to the defense of the country, and eventually becomes a king. The hero of more than 500 is categorized as conductor, strategist, activist, intuitive type. They are from Geumsan Mountain, took a pledge of brotherhood, and try to resolve a national crisis. The remarkable Jintai fights wicked enemies and does battle with the villains in many conflicts.

Characteristics of Wave Response in a 'Y' Shape Water Channel Resonator Using Resonance of Internal Fluid (내부유체 공진을 이용한 'Y'자 수로형 공명구조물내 파도응답 특성)

  • Kim, Jeongrok;Cho, Il Hyoung
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.31 no.3
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    • pp.170-179
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    • 2019
  • In this study, the wave responses in a 'Y'shape water channel resonator for amplifying wave energy of a low density has been investigated. A water channel resonator is composed of the long channel and wave guider installed at the entrance. If the period of the incident waves coincides with the natural period of the fluid in a water channel resonator, resonance occurs and the internal fluid amplifies highly to a standing wave form. In order to analyze the wave response in a water channel resonator, we used the matched asymptotic expansion method and boundary element method. The both results were in good agreement with the results of the model test carried out in the two-dimensional wave tank of Jeju National University. Wave guider has an optimum length and installation angle according to the period of the incident wave, and especially effective in enhancing the amplification factor in a period range deviated from the resonance period. It is expected that the wave energy can be effectively extracted by placing the point absorber wave energy converter at the position of anti-node where the maximum wave height is formed by the internal fluid resonance.

A Study on Technological Forecasting for Promising Alternative Technologies Using Fisher-Pry Modification Model (Fisher-Pry 수정모형을 활용한 유망대체기술 예측에 관한 연구)

  • Hong, Sung-Il;Kim, Byung-Nam
    • The Journal of the Korea Contents Association
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    • v.19 no.5
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    • pp.104-114
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    • 2019
  • In the global market competition, countries and businesses are actively engaged in technology prediction activities to maximize their profits by attempting to enter and preempting the core technology of the future. In this paper, we propose a growth model based on patent application trends to predict the time to replace a product with a promising new technology to dominate the market. Although the Fisher-Pry model that Bhargava generalized to predict the emergence of promising alternative technologies was relatively satisfactory compared to the original Fisher-Pry model, it was difficult to predict the replacement rate behavior properly due to a parameter problem. The application of the Fisher-Pry Modification Model in the form of a quadratic equation through the patent trend analysis of the optical storage system for the purpose of verifying the time alternative to the light storage technology has resulted in satisfactory verification results. It is expected that small and medium-sized companies and individual researchers will apply this model and use it more easily to predict the time to replace the market for promising replacement technologies.

Joined in the government-owned handicraft industry during the Joseon Dynasty Job type and role (조선시대 관영수공업에서 입사장(入絲匠)의 직무 유형과 역할)

  • KIM, Serine
    • Korean Journal of Heritage: History & Science
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    • v.54 no.2
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    • pp.216-239
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    • 2021
  • Inlay (入絲), a poetic technique of digging grooves in the surface of crafts and decorating them with metal materials, was used throughout the royal daily routines, ceremonies and government officials of the Joseon Dynasty. The government-owned handicraft industry in the Joseon Dynasty was composed of craftsmen belonging to central and local government offices and was operated mainly by government-owned craftsmen. The inlay craftsman was transferred to the central government office and was in charge of inlay poetry for crafts. The current records of Korean inlay craftsmen are concentrated in the state-owned handicraft industry. In the state-owned handicraft industry, the government offices of inlay craftsmen can be divided into Kongjo (工造), Sangeuiwon (尙衣院), and the military. Here the election of a temporary government office for airspace is added. The government offices and military inlay craftsmen who use inlay crafts are assigned, and the inlay craftsmen are placed separately in the temporary office where the fine division of labor is developed. It can be made by utilizing craftsmen. The operation of these production systems was indispensable in pre-modern Korean society, where crafts had to be produced by hand. In this paper, we investigated the roles and job types of craftsmen in the state-owned handicraft industry during the Joseon Dynasty, focusing on inlay craftsmen. Although the details applied to the characteristics and materials of the field, labor supply and demand, etc. are different, Korea pursued crafts for various purposes through craftsmanship within the framework of the basic state-owned handicraft policy . The institutional equipment for implementation was almost common. We believe that adding and analyzing some literature records and relics will help us to study the crafts of the Joseon era in more detail.

The Change of the Theory of Reading in the Later Joseon Period (조선후기 독서궁리론과 지식의 변화)

  • Kim, Moon-yong
    • (The)Study of the Eastern Classic
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    • no.32
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    • pp.159-187
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    • 2008
  • This article aims to investigate the change of theories of reading and its historical meaning in the later Joseon period. Three scholar who left major theories of reading are mainly analyzed for the sake of it. Park, Se-chae(1631-1695) was a Neo-Confucianist who had the theory of reading named Dokseo-Gungliron(讀書窮理論). It was totally based on the scheme of Neo-Confucianist instruction and concentrated on mastering the moral principles with relishing the sentences of the Confucian Canons. Jeong, Yak-yong(1762-1836) was a Practical learning scholar and then criticized the moral-centric theory of reading of Neo-Confucianism. He valued much of the Confucian Canons but also focused on erudite reading so as to enlarge practical knowledge. Hong, Gil-ju(1786-1841) was a stylist and presented a severe criticism against Neo-Confucianist theory of reading as much. He thought that what we could realize with reading are the principles of the individual, not of the whole. The change of theories of reading in the later Joseon period as above reveals us the fact that the intellectual history of that period was in the process of dynamical change.