실리카흄을 흔입한 고강도 콘크리트 개발

홍창우,김태경,김경진,김성환,김남윤,심도식,이정호,윤청호,백민경,원치문,박제선,이주형,정경일 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

콘크리트 구조물이 대형화됨에 따라 설계단면이 증대되어 상대적으로 많은 경제적 손실을 부담하게 된다. 따라서 단면을 감소시키면서도 소요의 하중에 안전한 구조물을 건설하기 위해서는 우선적으로 구조물 건설에 기초가 되는 고품질, 고내구성의 고강도 콘크리트 개발이 절실히 요구된다 본 연구에서는 일정 시멘트비 및 혼화재 비율하에서 소요의 워커빌리티가 확보되는 고강도 콘크리트를 시간과 온도의 변화에 따라 증기 양생하여, 압축, 인장, 휨강도 뿐만 아니라 파괴특성을 실험적으로 연구하였다. 시료 제작시 시멘트 입자 사이의 공극 및 불연속 영역을 충전하여 고밀도화하기 위한 콘크리트용 혼화재로 시멘트 비표면적이 상당히 작은 초미립 분말인 실리카흄을 이용하였다. 또한 AE감수제 및 고성능 유동화제를 사용하여 혼화재의 첨가에 의하여 발생될 수 있는 워커빌리티의 감소를 방지하였다. 실험결과에 의하면 일정 양생 지속 시간하에서 온도의 증가에 따라 콘크리트의 압축, 인장 및 휨강도가 전반적으로 증가하였다. 동일하게 일정 온도하에서 양생 지속시간이 커짐에 따라 강도들이 증가됨을 알 수 있었다. 따라서 상대적으로 높은 온도와 긴 지속 양생 조건하에서 파괴에 대한 저항력이 크게 나타났다. The compressible, tensible, and flexibleresistance of the high strength concrete is analyzed by the experimentation in the present study. For the test, we cure several samples with the silica fume as a mixture being become dense the spaces between the particle of cement under the variation of both the temperature and the curing-interval. Then, the superplasticizer and the ezcon are also used to satisfy the required workability for construction. The compressible, tensible, and flexible resistances to a stress are increased as increasing the temperature and the time interval for the curing. Therefore it is concluded that the overal fractural and mechanical properties is improved by mixing the silica fume into the cement.

프로 축구선수의 손상 분석

이경태,송백용,양기원,김나민,김장렬,박성률 대한스포츠의학회 2000 대한스포츠의학회지 Vol.18 No.2

Purpose : We evaluated and analyze the injury of the professional soccer player which would be helpful data for prevention of injury. Materials and Methods : Thirty-four professional soccer players were followed prospectively for one year and obtained injury exposure rate. We divided the injuries according to the position of the players incurred average 10 injuries for one year and the injury exposure rate was 2.9/1000hours, mostly strains and sprains of the lowre extremities. According to the player's position, the injured area and injury mechanism were different, Defence-Fielder and Mid-Fielder were more vulnerable to injury, 43% and 41.8% respectively, and mainly thigh and ankle injury. But Forward injury was less frequent and mainly leg and knee injury. In Goal-Keeper, neck and upper extremity injury was pre-dominant. Acute traumatic injury was 93% and recovery time was average on day, however, chronic overuse injury was less frequent but much longer time was required for recovery. Conclusion : The overuse injury is preventable by improving the environment and training program so that more attention is required.

Community Sports Club 육성을 둘러싼 학교의 기능에 관한 연구

이길민,백경운,육영숙 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1

This aim of this study is to make clear the role(function) of schools in developing or materializing a comprehensive sports club. This study examines what type of relationship two organizations, the regional society and school system, should have, to develop a sports club, from the collective strategy perspective. The main results of this study is as follows: 1. The importance of a close interorganization relationship between the school system and the local society was proven. 2. Negotiation, compromise, and mutual interdependence were very important in developing an interorganizational relationship. 3. It is important that school plays a crucial role in the local community by taking a leadership when developing a general, regional sports club. For this reason, a reform on school system is in order.

스포츠 행정평가에 관한 실증적 연구

육영숙,백경운,이길민 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1

The purpose of this study is to propose the importance of creating a master plan and the introduction of evaluation in the sport administration. Hense, there are two important issue: the systematization of the master plan, and to create the business evaluation of the business. The method of the research was as follows: we asked 72 local governments in Ibaraki prefecture to answer questionnaireas and then we conducted interviews. It was shown that the present condition isn't satisfactory in either of these issues. That is, most of the cities/towns/villages do not have a master plan of sport, and are not conducting evaluation on the result of the sports projects. Considering the result of the research, we propose a general master planning and a concrete method of evaluation(system model), understanding the inhabitant's needs.

데이터 글러브를 이용한 손 제스처 기반 3차원 게임 구현

유다연,권차욱,곽지민,백화현,김이조,차경애 대구대학교 정보통신연구소 2010 情報通信硏究 Vol.7 No.1

데이터 글러브(Data Glove)는 손 제스처를 정의하여 시스템을 제어하는 입력장치로 가상현실기술 및 교육, 의료, 산업분야에서 많이 사용되고 있다. 이는 가상현실 속에 존재하는 사물을 현실에서 제어하게 함으로써 사용자에게 마치 현실 세계의 사물을 제어하는 느낌을 주는 장점을 가지고 있다. 이에 본 논문에서는 이러한 데이터 글러브의 장점을 이용하여 3차원 게임에 적용시키는 방법을 제안한다. 먼저 데이터 글러브로 제스처를 정의하고, 트래커(Tracker)와 연동하여 시스템을 구현한다. 구현된 시스템을 실험하기 위해서 OpenGL로 인형 뽑기 게임을 구현하고 사용자가 데이터 글러브를 착용 후 정의된 제스처를 통해 게임을 제어하도록 한다. 본 논문에서 제안한 방법은 사용자들에게 좀 더 높은 몰입감을 제공하며, 향후 게임 산업 발전에도 많은 영향을 줄 것으로 기대한다.

이매방 살풀이춤의 ‘여형화(女形化)’에 대한 논의

김기화 ( Kim Ki-hwa ) 한국무용연구학회 2020 한국무용연구 Vol.38 No.1

우리는 이매방의 춤을 이야기할 때 ‘아름답다’, ‘교태적이다’, ‘농염하다’라고 표현한다. 이러한 수사(修辭)는 그의 춤이 다분히 여성적인 속성을 갖고 있기 때문에 붙여진 것이다. 본 연구는 이매방의 살풀이춤이 여형화의 양식체계로 구축되어 있음을 논의하였다. 춤에서 ‘여형화’란 남성이 여성의 모습으로 춤을 추는 형식, 혹은 양식이라고 할수 있다. 이매방의 춤은 다음과 같은 여형화의 특성을 보인다. 첫째, 이매방의 살풀이춤은 경극의 ‘화단’이나 가부키의 ‘게이세이’와 같이 화려하고 교태스런 배역 특성을 보인다. 둘째, 살풀이춤의 복식은 남성과 여성의 구분을 두고 있으되 상당히 장식적인 여성성을 지향하고 있다. 셋째, 이매방의 양성 지향적인 성 정체성은 탐미적인 미의식으로 확장되어 여형화 된 춤 양식 체계로 환원되었다. 넷째, 이매방 살풀이춤의 기법은 가공된 여성의 신체상을 기반으로 구축되었다. 즉, 응축된 근육의 밀도 높은 작용을 통해 신체를 ‘축소’하거나 ‘왜곡’하여 관능적이고 요염한 여성성을 신체상으로 구현하여 춤에 반영하였다. 이상으로 미루어 이매방 살풀이춤은 남성이 추는 여성의 춤, 혹은 기방춤을 전형 특성의 하나로 구축하고 있다고 하겠다. When we talk about Lee Mae-bang's Salpul-i chum, we use the expressions ‘beautiful’, ‘exciting’, and ‘congested’. This knowledge was attached because his dance has a feminine attribute. This study discussed that Lee Mae-bang's Salpul-i chum is constructed as Yeohyeonghwa's aquaculture system. First, Lee Mae-bang's Salpul-i chum exhibits gorgeous and cunning character, such as Peking Opera's 'Huā dàn' or Kabuki's 'Keisei'. In dance[chum], ‘Yeohyeonghwa’ can be said to be a form or style in which men dance in the form of women. Lee Mae-bang's dance shows the following characteristics of Yeohyeonghwa. Second, Salpul-i chum's costumes differentiate between men and women, but aim for a highly decorative femininity. Third, Lee Mae-bang's bisexual sexual identity has been stylized into a feminine attitude through aesthetic pursuit. Fourth, Lee Mae-bang Salpul-i chum's technique expresses the processed female body image. In other words, Salpul-i chum expresses the body of a sensual and fascinating woman by 'shrinking' or 'distorting' the body through the dense action of condensed muscles. In this regard, Lee Mae-bang is said to be constructing a male dance or gibangchum as one of the characteristics of Jeonhyeong[original form].

후천성 양측성 오타 모반양 반점과 이토 모반양 반점을 동반한 전신성 후천성 멜라닌 세포증

이경문 ( Kyung Moon Lee ),백승주 ( Seung Ju Back ),이영 ( Young Lee ),서영준 ( Young Joon Seo ),박장규 ( Jang Kyu Park ),이증훈 ( Jeung Hoon Lee ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.11

Dermal melanocytosis is histologically characterized by the presence of ectopic melanocytes in the dermis. Mongolian spots, nevus of Ota, nevus of Ito and blue nevus are the most common types and these are usually present at birth or in early childhood. However, it has been reported that several types of dermal melanocytosis could appear in adult life. We report here on an unusual case of acquired dermal melanocytosis occurring in a 51 year-old female. She had bilaterall brownish or slate-bluish pigmented patches on the face and the posterior auricular, supraclavicular, scapular and back areas. The skin biopsy specimen taken from the upper back revealed scattered, darkly pigmented, spindle-shaped cells and dendritic cells containing abundant golden brown pigment in the dermis. (Korean J Dermatol 2008; 46(11): 1543∼1547)

Quality Characteristics of Red Ginseng-Chungkukjang Prepared with Various Bacillus sp. Isolated from Traditional Chungkukjang

Kyung-Ok Shin,Yoo-Kyung Jung,Ye-Kyung Lee,Bum-Ho Park,Kyung-youn Back,Sang-Il Lee,Soon-Dong Kim 동아시아식생활학회 2006 동아시아식생활학회 학술발표대회논문집 Vol.- No.-

A Three-Dimensional and Sensitive Bioassay Based on Nanostructured Quartz Combined with Viral Nanoparticles

Lee, Jong-Hwan,Kim, Jung Suk,Park, Jin-Seung,Lee, Wonbae,Lee, Kyung Eun,Han, Sung-Sik,Lee, Kyu Back,Lee, Jeewon WILEY-VCH Verlag 2010 Advanced Functional Materials Vol.20 No.12

<P>An effective mask-free method for fabricating high-aspect-ratio pillarlike nanostructures over a large area of a quartz surface via a simple O<SUB>2</SUB> and CF<SUB>4</SUB> two-step reactive ion etching (RIE) procedure is developed. The nanostructured quartz surfaces are successfully combined with the engineered viral particles derived from hepatitis B virus capsid, yielding a novel 3D assay system with attomolar sensitivity, which has great potential for use in sensitive and early detection of various disease markers.</P> <B>Graphic Abstract</B> <P>Nanostructured quartz surfaces are densely covered with probe antibodies in a controlled orientation via engineered viral nanoparticles, leading to the preparation of a 3D assay system. The successful application of this nanostructured quartz-based assay system to highly sensitive detection of disease markers is reported. <img src='wiley_img_2010/1616301X-2010-20-12-ADFM200902054-content.gif' alt='wiley_img_2010/1616301X-2010-20-12-ADFM200902054-content'> </P>

Hepatoprotective Effects of Allium cepa Linn Extract on Acetaminophen-induced Liver Damage in Mice

Kyung-Jin Lee,Deok-Song Kim,Eun-Sun Seo,Gun-Chang Ryu,Jin Huh,Jong-Sun Kim,Myung-Suk Ra,Seong-Uk Wui,Back-Jin Jeong,Dong-Woo Nam,Jong-Eun Chin,Jong Bin Lee 한국식품과학회 2003 Food Science and Biotechnology Vol.12 No.6