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자가 심낭편을 이용한 대동맥판 폐쇄 부전의 수술적 교정;1례 보고 (Surgical Repair of Aortic Incompetence using Autologous Pericardium - A Case Report -)

  • 우석정
    • Journal of Chest Surgery
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    • 제25권10호
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    • pp.1157-1160
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    • 1992
  • Aortic valve repair with the use of tailored autologous pericardial extension to the native cusp was performed in one patient with rheumatic aortic valve incompetence. The patient was a 10-year-old girl with Grade II aortic regurgitation and tiny postoperative recannalization of the patent ductus arteriosus. The left aortic coronary cusp appeared to be a little thickened and a cicatrical shortening of the distance between the free edge of the cusp and its annular attachment. A semilunar shaped patch of autologous pericardium, treated with glutaraldehyde solution[6 minutes in 0.6% solution] was sutured along the free edge of the left coronry cusp. Postoperative recovery was uneventful. Echocardiography 8 months later showed Grade I aortic regurgitation. She is now conducting as usual life.

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대학의 지식재산권 관리규정 상 학생의 공동발명 처리에 관한 연구 (Study of the Treatment for Student Co-invention in the Intellectual Property Management Code at Universities)

  • 나동규
    • 한국산학기술학회논문지
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    • 제15권11호
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    • pp.6669-6675
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    • 2014
  • 대학에서 교수의 연구활동을 통해서 창출되는 발명은 직무발명으로서 그 발명에 대한 특허 받을 권리는 대학의 산학협력단에 승계되고, 교수는 그 대가로 정당한 보상을 받을 권리를 갖는다. 교수의 연구활동은 교수가 단독으로 수행하는 경우보다는 대부분이 학생의 직 간접적인 기여나 참여를 통해 수행된다. 대학에서 학생의 발명자 기여분은 직무발명으로 취급될 수도 있지만, 경우에 따라서는 교수의 직무발명과 달리 자유발명으로 취급될 수도 있다. 따라서 학생의 특허 받을 권리에 대한 산학협력단의 일방적인 승계는 향후 학교와 학생 간의 분쟁의 여지를 발생시킨다. 이에 본 연구에서는 학생의 발명자 기여분에 대한 처리에 있어서 전국 80개 대학의 지식재산권 관리규정을 조사한 후 문제점을 확인하고 이에 대한 바람직한 방향을 제시한다.

A Joint Effort between Academia and Industry in the Eastern Part of Kagawa Prefecture in Japan

  • Sato, Kazuishi;Okajima, Kunihiko;Nakajima, Ken-Ichiro
    • 공학교육연구
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    • 제15권4호
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    • pp.14-20
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    • 2012
  • The Regional Cooperative Development Center (RCDC) at Tokushima Bunri University was established in 2005. The role of the RCDC is to make a social contribution and to assist in the development of human resources. The RCDC has made contributions to society by organizing meetings to facilitate the exchange of technology, holding public lectures, supporting joint research projects, providing technical assistance for manufacturers, making available the free use of equipment owned by the university and so on. Additionally, the RCDC has put much effort into giving undergraduate students internship opportunities at industries in the eastern part of Kagawa Prefecture (the TOSAN area) in Japan. The RCDC also trained a contracted researcher from a small company about the creation of intellectual property, including how to conduct a patent prior art search, how to prepare a patent specification, etc. The RCDC has worked in partnership with industry, Sanuki City Society of Commerce and Industry and Higashi-Kagawa City Society of Commerce and Industry in order to revitalize local communities.

Direct Open Venous Drainage: An Alternative Choice for Flap Congestion Salvage

  • Park, Su Han;Choi, Woo Young;Son, Kyung Min;Cheon, Ji Seon;Yang, Jeong Yeol
    • 대한두개안면성형외과학회지
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    • 제16권3호
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    • pp.143-146
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    • 2015
  • In this report, we present a scalp defect reconstruction with lateral arm free flap. We highlight the difficulty in obtaining a recipient vein and the venous drainage managed through an open end of the donor vein. A 52-year-old woman presented with a pressure sore on the left scalp. A lateral arm free flap was transferred to cover this $8{\times}6cm$ defect. The arterial anastomosis was successful, but no recipient vein could be identified within the wound bed. Instead, we used a donor venous end for the direct open venous drainage. In order to keep this exposed venous end patent, we applied heparin-soaked gauze dressing to the wound. Also, the vein end was mechanically dilated and irrigated with heparin solution at two hour intervals. Along with fluid management and blood transfusion, this management was continued for the five days after the operation. The flap survived well without any complication. Through this case, we were able to demonstrate that venous congestion can be avoided by drainage of the venous blood through an open vessel without the use of leeches.

특허 데이터에 기초한 지식창출활동의 공간분석 (The Spatial Analysis of Knowledge Production Activities Based on Korean Patent Data)

  • 이희연;김홍주
    • 한국경제지리학회지
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    • 제9권3호
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    • pp.318-340
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    • 2006
  • 지난 10여년 동안 새로운 내생적인 경제성장의 동력으로서의 지식창출활동에 대한 관심이 크게 고조되면서, 지식기반경제에서 지식창출을 측정하는 지표로서 특허의 중요성이 더욱 부각되고 있다. 선진국의 경우 지식창출활동은 공간상에 특정지역으로 집중되거나 클러스터를 형성하는 것으로 분석되고 있다. 본 연구는 1981-2000년 동안 국내 특허 데이터를 토대로 하여 지식창출활동의 성장에 따른 공간분포패턴을 분석하는데 목적을 두었다. 등록된 특허 원시자료를 데이터베이스로 구축하여 공간통계와 지리정보체계를 활용하여 지식창출활동 패턴의 공간적 연관성을 분석하였다. 우리나라의 경우 지식창출량의 68.5%가 단지 상위 10개 도시에 집중되어 있을 정도로 매우 불균등하게 지식창출활동이 이루어지고 있으며, 지식창출활동의 공간분포 패턴은 유의미한 공간적 자기상관을 보이는 것으로 나타났다. 실제로 서울과 수원을 중심으로 하는 지식창출량이 많은 H-H형 클러스터는 수도권내에서만 형성되어, 지식창출활동의 확산은 공간의 제약성을 받고 있는 것으로 나타났다.

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정삼투-무삼투압차(△𝜋≤0) 법 역삼투 해수 담수화 및 고농도 NaCl 용액의 삼투압 근사식 (Forward Osmotic Pressure-Free (△𝜋≤0) Reverse Osmosis and Osmotic Pressure Approximation of Concentrated NaCl Solutions)

  • 장호남;최경록;정권수;박권우;김유천;서찰스;김낙종;김도현;김범수;김한민;장윤석;김남욱;김인호;김건우;이햇빛;치앙페이
    • 멤브레인
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    • 제32권4호
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    • pp.235-252
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    • 2022
  • 무삼투압차 역삼투압(Δ𝜋= 0)은 KAIST H. N. Chang 명예교수가 2013년 발명, 2014년 미국 특허 출원, 2018년 특허 취득(US 9,950,297) 해수담수화기술. Chang 등의 RO 기술은 삼투압 조정조와 저압 역삼투압의 2 챔버로 구성. Chang 등은 소금물을 비롯한 모든 수용액은 물과 용질(소금)로 완전 분리 가능 주장. 삼투압차 조정조, 저압 역삼투압조 2 챔버로 구성됨. 고농도 용액의 삼투압은 1908년 미국화학회지 출간된 MIT G. N. Lewis식 이용. 두 번째 특허(US 10,953,3367)에서 RO가 10~12 bar 저 삼투압차 수행 가능 증명. 세 번째 특허(Korea 10-2322755, 해외 출원 중) Singularity ZERO 활용하면 기존 RO에 비해 물은 50% 추가, 막 면적은 1/3, 이론에너지는 1/5, 동일 용량의 S-ZERO 기술은 기존 RO 건설비의 50~60%로 예측됨.

Types and Health Hazards of Fibrous Materials Used as Asbestos Substitutes

  • Park, Seung-Hyun
    • Safety and Health at Work
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    • 제9권3호
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    • pp.360-364
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    • 2018
  • Asbestos has been banned in many countries but many countries, including developing countries, are still using asbestos or materials containing asbestos. Substitute materials have been studied and developed over a long period of time because of the hazards of asbestos, and many people have recently shown interest in the hazards of substitute materials. However, comprehensive information about the types of asbestos substitutes, their use and health hazards, and references for the protection for the health of workers is limited. The purpose of this study is to provide people in the related industries with information on the types and health hazards of fibrous materials that can be used as asbestos substitutes. According to the patent resources from the United States and Europe, fibrous materials have been used to develop asbestos-free products since before 1980. Recently, the health hazards of asbestos substitutes have been assessed and many additional researches are required. However, only some of the substitute materials have been assessed for health hazards, and health hazard data has not been sufficient in many cases. Therefore, efforts should be made to minimize workers' exposure to substitute materials that do not contain asbestos.

CoQue - 케이블타이 구조를 이용한 휴대폰 거치대 디자인 (CoQue - Designing New SmartPhone Cradle with Cable Tie Structure)

  • 김신;김소영
    • EDISON SW 활용 경진대회 논문집
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    • 제4회(2015년)
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    • pp.491-495
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    • 2015
  • Currently, selfie stick, a monopod take selfie photographs, got its popularity. Cradle used to connect selfie stick and smartphone usually uses electric force of spring to get smartphone fixed. But, using electric forces makes it hard to attach and detach smartphone from the cradle and gives possibility of smartphone falling down. CoQue suggests new solution of smartphone cradle by using cable tie (patent number US 8407863 B2) instead of electric force. It will give more easy and stable way of using selfie stick.

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Bayesian Regression Modeling for Patent Keyword Analysis

  • Choi, JunHyeog;Jun, SungHae
    • 한국컴퓨터정보학회논문지
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    • 제21권1호
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    • pp.125-129
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    • 2016
  • In this paper, we propose an efficient dynamic workload balancing strategy which improves the performance of high-performance computing system. The key idea of this dynamic workload balancing strategy is to minimize execution time of each job and to maximize the system throughput by effectively using system resource such as CPU, memory. Also, this strategy dynamically allocates job by considering demanded memory size of executing job and workload status of each node. If an overload node occurs due to allocated job, the proposed scheme migrates job, executing in overload nodes, to another free nodes and reduces the waiting time and execution time of job by balancing workload of each node. Through simulation, we show that the proposed dynamic workload balancing strategy based on CPU, memory improves the performance of high-performance computing system compared to previous strategies.

로이 풀러의 무대 의상에 관한 연구 (A Study of Costumes in the $Lo{\ddot{i}}e$ Fuller's Dance)

  • 최유진
    • 복식문화연구
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    • 제16권5호
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    • pp.878-890
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    • 2008
  • As a pioneer of modem dance, $Lo{\ddot{i}}e$ Fuller($1869\sim1928$) was important because she introduced a free style dance using a new style of stage costumes. Also, $Lo{\ddot{i}}e$ Fuller was an important motif in $fin-de-si{\grave{e}}cle$, French arts, posters, sculptures, and so forth. This study aimed to clarify the characteristics of Fuller's dance and costumes, and to analyze the modernism in both. To better understand Fuller's dance, this article talks about research on Fuller's career, dance, and Fuller's own biography. Stage costumes, letters for patent, and photographs were are also studied. The most important elements of Fuller's dance were her costumes and the electric lights which could make free style expressions a fantastic representation of dance. To clarify the modernity of Fuller's dance, first of all, this study researched Fuller's career in dance and then analyzed representations of Fuller's dances in visual arts; posters, sculptures and lastly, the characteristics of Fuller's stage costumes. As a result, this article analyzed characteristics of Fuller's dance in three points. First, Fuller used sculptures of silk cloth's drapery to express physical movements and actions. Second, Fuller used lighting and electrical effects that had just been developed in the late 19th Century. Third, Fuller made an application for patents against stage costume and stage mechanisms for her original shows. This study focused on $Lo{\ddot{i}}e$ Fuller's stage costumes which played a main role in expressing fantastic sculptures for the first time in costume, visual arts, and dance studies. This study clarifies the characteristics of the stage costumes in Fuller's dance and is estimated as pioneering and fundamental research.

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