• Journal of Aerospace System Engineering
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• v.14 no.3
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• pp.42-50
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• 2020

For calibration of the non-uniformity characteristics of the space-borne infrared (IR) sensor, a black body system shall provide estimated representative surface temperature at various reference temperatures by using the limited number of temperature sensors. The black body system proposed in this study has an I/F flange integrated on the rear side of the black body for installation of the heat pipe to transfer the residual heat after the black body heat-up. This design allows for obtaining a circular symmetric thermal contour of black body with low surface temperature gradient, leading to much easier representative temperature estimation. Additionally, this provides mechanically stable thermal I/F under launch and on-orbit environmental loads, as well as allowing a fail safe design by using the two heat pipes. Also, a highly accurate temperature estimation is possible even if the temperature sensors are attached on the surface on the rear side of the black body. The effectiveness of the thermal design of the proposed black body has been verified through the on-orbit thermal analysis. Based on the results, the representative surface temperature was estimated according to the number and position of the temperature sensors.

• Korean Journal of Optics and Photonics
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• v.16 no.5
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• pp.446-449
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• 2005

In a directional coupler, the design process requires repeated calculation of the characteristics of every changed structure, because it is generally difficult to expect the extinction ratio to be optimized over the entire variation of design parameters. In this paper, we systematically simulated the extinction ratio as a function of the design parameters, and analyzed the general tendency of that characteristic. In other words, we could find the generalized extinction ratio curve if the separation distance is normalized by the waveguide width. Here, the extinction ratio is shown to be increased as the normalized frequency (v) and the ratio (d) of the separation distance over the waveguide width were increased. For various structures with same ratio d, all corresponding extinction ratio curves as a function of v coincide with each other. We showed the usefulness of the generalized extinction ratio curve by applying it to the design and the fabrication of 1310/l550 nm demultiplexer, as it was convenient to design a shorter directional coupler with targeted extinction ratio from this curve.

• Journal of Soil and Groundwater Environment
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• v.14 no.4
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• pp.15-22
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• 2009

The remediation efficiency for a large scale petroleum-contaminated site was evaluated by using the Engineered Land-farming system which was consists of the following parameters; moisture & nutrient injector data, blower system, HDPE sheet and sump system. To enhance the degradation ability in the early stage, main nutrients such as nitrogen (N) and phosphorus (P) were adjusted for the site condition. As a result of the periodic tilling process, the concentration of contaminated soil was decreased to 348 mg/kg, which was lower than 500 mg/kg (regal standards) while satisfying remediation Efficiency of 82% (the maximum concentration of 1,893 mg/kg). The appropriate temperature range for an active operation was investigated between $28.9{\sim}35.6^{\circ}C$. For the contaminated soils having different initial concentration, the TPH (Total Petroleum Hydrocarbons) concentration was decreased evenly along with the CFU (Colony Forming Unit), moisture content and contaminant concentration after 38days of gratifying the legal standards of under 500 mg/kg.

• Journal of the Korea Convergence Society
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• v.12 no.12
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• pp.443-451
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• 2021

This study is a qualitative research using focus group interviews with disabled people and their families to understand the unmet healthcare needs perceived themselves and to analyze the experiences of 'The 2^nd pilot project for primary care for people with disabilities', from 9 to 17 February 2021. The subjects of the study was the disabled who can express their opinions (group 1) or the guardians of the subjects who can not express their opinions (group 2). The participants were interviewed for about 100 minutes for each group once or twice. As a result of this study, the factors regarding unmet healthcare needs were extracted in subject, provider, institutional, and socio-cultural aspects. Further, the factors resolved and unresolved by the pilot project were extracted. Based on the results, we can recommend that the expanded application to the visiting service, inclusion of doctors from various departments, multidisciplinary approach including physical or occupational therapists, minimizing disconnection among the hospitals and healthcare centers, improvement of service quality by collecting opinions from people with disabilities, and more publicity activities should be applied.

• The Korean Society of Law and Medicine
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• v.21 no.2
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• pp.3-33
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• 2020

Until recently the German and the South Korean medical associations reacted cautiously to the introduction of telemedicine between doctor and patient which is exclusively on the platform conducted. But the General Assembly of German Physicians voted to lift the ban on remote treatment with the amendment to Section 7 (4) MBO-Ä(Medical Association's Professional Code of Conduct) in 2018 and the situation has been fundamentally changed in Germany. From then until now 16 of 17 rural medical associations have changed their professional code to allow telemedicine. In addition the legislature started to prepare the basis for the introduction of the electronic health card (eGK) and the telematics infrastructure. So far, various laws such as Medicinal Products Act, Drug Advertisement Act and Social Code have been changed to support legalization of telemedicine and digitalization of health care. Unlike in Germany, the social circumstances such as excessive centralization of the big hospitals in Seoul and the resulting concern of small medical practices for profitability are the main obstacles to the introduction of telemedicine. However the German approach how to legalise the telemedicine and to prepare for legal and technical infrastructure is also interesting in South Korea. The discussions for and against the changes in the law and the telematics infrastructure attempted by the German government for several years indicate that not only lifting the ban on remote treatment, but also harmonization of all the related legal system could guarantee successful implementation of telemedicine.

• Journal of Korean Philosophical Society
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• v.105
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• pp.291-320
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• 2008

이 글은 2004년 충남대학교 국사학과 한국학술진흥재단 기초학문지원 마을사연구의 공동연구 작업에 의한 연구 성과물이다. 연구 대상 마을인 충남 논산시 노성면 병사리는 17세기 호서지역의 3대거족의 하나인 파평윤씨노종오방파(坡平尹氏魯宗五房派)가 세거했던 마을이다. 이 마을의 대표적인 유학자로는 우암(尤庵) 송시열(宋時烈)과 40년 동문사이인 노서(魯西) 윤선거(尹宣擧)와 그의 아들인 명재(明齋) 윤증(尹拯)이 있고, 그 외 파평윤씨노종오방파의 유서와 전통을 이어갈 수 있도록 토대를 닦은 동토(童土) 윤순거(尹舜擧) 등이 있다. 그리고 이 글의 주제 인물인 둔옹(鈍翁) 윤지(尹指)는 동토(童土) 윤순거(尹舜擧)의 아들이다. 특히 윤지(尹指)는 동토(童土) 선생의 서자로 태어났지만 명재(明齋) 윤증(尹拯)의 뒤를 이어 노종오방파(魯宗五房派)의 종중서당(宗中書堂)인 종학당(宗學堂)의 사장(師長)을 지낸 인물이다. 적서의 차별이 엄연함에도 불구하고, 파평윤씨노종오방파(坡平尹氏魯宗五房派) 자제들의 교육을 총책임지는 막중한 소임을 맡았던 것이다. 그 결과 그가 사장(師長)으로 있는 동안 수많은 과거 급제자들을 배출하였을 뿐만 아니라 선대에 이루어 놓은 가학적 전통을 후세에 전할 수 있는 매개자 역할을 훌륭하게 수행했다. 그러나 그동안 윤지(尹指)의 사장(師長)으로서의 생애와 학문 활동에 대해서는 전연 알려지지 않은 채 베일에 가리어져 왔다. 그러던 중 그의 대표저서인 "둔옹집(鈍翁集)" 이 그의 사후 200 여년 이 지난 1916년에 8대 족손 윤구병(尹龜炳) 윤혜병(尹惠炳) 등에 의해 간행되었다. 이에 그의 학문이 세상에 알려질 수 있는 계기가 되었던 것이다. "둔옹집(鈍翁集)"은 "연소천지문답(演小天地問答")과 동몽문답(童蒙問答) 등 두 편으로 구성된 문집인데, "연소천지문답(演小天地問答)"은 4권 1책, 약 13만 여자 분량으로 그 주요 내용은 한의학과 관련된 내용이 주로 되어 있고, 동몽문답(童蒙問答)은 1권 1책 약 7,600여 자 분량으로 주역(周易)의 기본 구성원리인 음양오행설을 자문자답의 형식을 빌려 소개하고 있다. 이 글의 전반부는 둔옹(鈍翁) 윤지(尹指)의 생애를 소개한 후 중반부 이후부터 그의 음양오행에 대한 이해를 소개하였다. 그리고 파평윤씨노종파 3人(윤선거(尹宣擧) 윤증(尹拯) 윤지(尹指))의 주역 이해를 통해 그들의 가학의 일단을 엿보았다. 다만 이글은 둔옹(鈍翁) 윤지(尹指) 연구의 효시(嚆矢)로써 그의 철학의 구체적인 내용 보다는 그의 생애와 개략적인 학문 활동을 소개하는 것에 초점을 맞추었다. 차후 그의 철학의 핵심이 담겨져 있는 "연소천지문답(演小天地問答)"은 장차 한의학 분야 전공자와의 공동연구를 통해 소개해야 할 것이다.

• Cross-Cultural Studies
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• v.46
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• pp.411-434
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• 2017

With emphasis on various local cultures to confront the Western central culture, Ngugi wa Thiong'o proposes them 'to move horizontally' so as not to repeat the oppressive culture of the West. We need not only dialogues between dominant languages and peripheral languages, but also between marginal languages. With respect to this point, Ngugi thinks that translation itself could be very effective. Ngugi wants to stimulate writing and speaking in marginalized languages and promote translation as a means of making these languages visible. He regards translation as a conversational tool among languages and cultures in the multicultural global community. As is already well known, his determination to write his later works only in his native Gikuyu language has a great meaning in his anti-colonial as well as anti-neocolonial movement. Its proof is his recent effort to cooperate with Jalada Africa. Simon Gikandi criticized the English translation of Matigari as a denial of cultural hegemony of Gikuyu language and its subordination to the global cultural market. However, the concept of 'thick translation', helps us move from Gikandi's doubt of the 'epistemology of translation' to a meaningful strategy of postcolonial translation. Facing some of the scholars' doubts related to his over-stressing language problem, Ngugi points out that the world has managed to function well through translation: the possibility of translation between cultures and translation as a mediating tool for communication nationally as well as internationally. Based on this two-sided solution of translation, he believes that we can overcome the opposition between relativity and universality, center and periphery, and the dominant and the subordinate.

• Cross-Cultural Studies
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• v.42
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• pp.107-129
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• 2016

In modern history, there have been several kinds of continental unions or supranational politico-economic unions in the world, such as the United Nations, the European Union, the Union of South American Nations, the African Union, etc. Modern thinkers proposed many pan-isms on their continental base, for example, Pan-Arabism, Pan-Latin Americanism, Pan-Asianism, Pan-Celtism, etc. What is the most common in these pan-isms is that a continental union would be a politico-economic system to overcome the limits of the modern state-nation and to realize a long and happy relationship between member nations and continents. However, the concept of a supranational union differs from that of cosmopolitanism, in that the former presupposes the common cultural and historical heritage in the concerned region or continent. Ngugi wa Thinog'o' Pan-Africanism implies two keywords that are connected to his concepts such as 'decentralization' and 'African languages.' Pan-Africanism supposes that Africa may gain benefits from the union of African nations under the umbrella of anti-colonial efforts to down size the Euro-American influences. Moreover, using African languages enhances self-reliance and self-imagination among the African people. For in the former colonial regimes, the European colonial languages, such as English, French, or Portuguese, were central to the dissemination of European culture and modernity. Ngugi asserts that the African peripheralized languages could reinstate the African cultural heritage and propose an alternative to the Western modernity.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.4
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• pp.293-302
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• 2019

This study systematically analyzed computer-based driving intervention programs for seniors, to provide the academic background for driving intervention for seniors. Articles published from January 2009 till December 2018 were researched and analyzed. 'PubMed, Google Scholar, and Science Direct' were used to search articles published overseas, and 'RISS, KERIS, and KISS' searched for articles published in Korea. Based on the inclusion and exclusion criteria, totally 359 papers were retrieved, and 10 articles were finally analyzed; 8 articles (80%) were evidence level I, and 2 articles (20%) were evidence level III. Amongst the computer-based interventions, driving simulators (70%) were the most common, followed by two video image training (20%) and one Nintendo Wii program (10%). In most studies, driving simulators trained the cognitive and visual abilities of seniors and enhanced their abilities to cope with risk situations under various simulated circumstances. Other interventions were also reported to have a positive effect. For evaluating elderly drivers, the driving performance evaluation using a driving simulator was the most common; in addition, evaluations of attention, space-time ability, cognitive function, risk perception, depression and anxiety were also commonly used. We believe that it is appropriate to employ computer-based driving intervention programs for seniors to train and evaluate various domains. We expect that these interventions can be used as an effective tool for safe driving.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.570-578
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• 2019

In this era of big data, a variety of government organizations are trying to create new added value via Information Integration. Therefore, several projects related to government agencies' information sharing have activated system connection/integration. The risk factors of system operation, however, have increased as the volume of Information Integration System grows. The interference in information sharing is predicted to affect the operation of the agencies, and the issue will grow even worse with massive impact on civil society when the agency operation is interrupted due to system failures in terms of infrastructure, software, data quality, and security. Diverse studies related to the maintenance of Information System have been conducted, but there is currently no evaluation framework for the operational system of Information Integration between various government agencies. In this respect, this study distinguishes each of the Information System components, Data, IT, People, Process, systematizes with Plan-Do-See, and finally presents a maturity model for Information Integration. Nine derived processes were analyzed through interview and questionnaires from Information Integration System officials, further suggesting maturity stage applying CMMI. This model allows diagnosis of the maturity level of an Information Integration System, and is expected to be utilized as resource for improving organizational processes.