Quantitative Analysis on Air-Dispensing Parameters for Manufacturing Dome Lenses of Chip-on-Board LED System

Jeon, Eun-Chae,Lee, Je-Ryung,Je, Tae-Jin,Choi, Doo-Sun,Ham, Young-Bog,Lee, Eung-Sug,Choi, Sang-Kyu,Kim, Hwi Korean Society for Precision Engineering 2014 International Journal of Precision Engineering and Vol.15 No.11

A COB(chip-on-board) LED(light emitting diode) system has advantages such as low cost and good heat dissipation. LED chips are bonded on PCB(printed circuit board) directly without packaging process in case of COB LED systems. Dome lenses made of polymeric resin are generally covered on the bonded LED chips by air dispensing for preventing mechanical damage and making white light. However, it is hard to control the shape of dome lenses precisely due to viscosity of the polymeric resin. We analyzed the relationship of the shape of dome lenses and experimental conditions of the air dispensing in this study. We introduced a new parameter, air pressure * dispensing time, whose physical meaning is impulse per unit area, and obtained much clear relationship of dispensing parameters and shape parameters of the dome lens. This relationship was similar to viscoelastic behavior. The aspect ratio (height over diameter) was increased as the new parameter increased, and was converged to a certain value. The maximum aspect ratio could be calculated by Young's equation of contact angle.

자연산 점몰개, Squalidus multimaculatus Hosoya et Jeon의 새인두흡충, Clinostomum complanatum (Rudolphi, 1814) 감염

박명애 ( Myoung Ae Park ),서정수 ( Jung Soo Seo ),정승희 ( Sung Hee Jung ),최희정 ( Hee Jung Choi ),전은지 ( Eun Ji Jeon ),지보영 ( Bo Young Jee ),이완옥 ( Wan-ok Lee ),우승호 ( Sung Ho Woo ),이은혜 ( Eun Hye Lee ) 한국어병학회 2011 한국어병학회지 Vol.24 No.2

경상북도 영덕군의 하천에 서식하는 점몰개 spotted barbel gudgeon (Squalidus multimaculatus Hosoya et Jeon)의 근육에서 새인두흡충 Clinostomum complanatum (Rudolphi, 1814)의 피낭유충이 발견되었다. 감염된 점몰개는 "yellow grub"인 기생충의 피낭유충으로 인해 표면이 울퉁불퉁하게 보였으며, 수면위에 힘없이 유영하였고 일부 폐사한 개체도 발견되었다. 분리된 탈낭유충의 형태는 혓바닥 모양이었으며, 크기는 2.85~5.89 mm×0.8~1.99 mm였다. 어체당 1~98 개의 피낭유충을 분리하였으며 평균 감염수는 25개로 나타났다. 특히, 성어크기인 평균 7 cm 정도의 점몰개는 100% 감염되어 있었다. 본 연구는 한국의 자연수계에 서식하는 어류에서 C. complanatum 의해 질병이 발생하고 폐사가 일어난 첫 보고이다. The metacercariae of Clinostomum complanatum (Rudolphi, 1814) were isolated in the whole body muscle of wild freshwater fish, spotted barbel gudgeon (Squalidus multimaculatus Hosoya et Jeon) from the local river in Yeongdeok, Gyeongsangbuk-do, Korea. The infected fish with bumpy body surface by "yellow grub" showed erratic swimming behavior and some fish were died. The isolated excysted metacercariae were tongue shaped and 2.85~5.89 mm × 0.8~1.99 mm in size. 1~98 metacercariae were isolated in individual fish and mean infection intensity was 25. All examined adult spotted barbel gudgeon sizing 7 cm in body length were infected. This is the first report of disease outbreak and mortality caused by C. complanatum infection in wild freshwater fish in Korea.

Decompression Sickness 환자에서 발생한 Livedo Reticularis 1예

전영민,이지범,송은섭 대한피부과학회 1999 대한피부과학회지 Vol.37 No.6

Livedo reticularis is a mottled bluish discoloration of the skin which occurs in a netlike pattern and is not a diagnosis in itself, but is a nonspecific reaction pattern. It may be classified as idiopathic and secondary livedo reticularis. Decompression sickness can occur during decompression after diving into deep sea water or during a rapiid ascent from sea level, and is one of the many causes of the secondary livedo reticularis. We report a case of livedo reticulris which developed in a patient with decompression sickness. A biopsy from the purpuric patch revealed an unusual histopathologic finding that resembles those of bullae and sweat gland necrosis in drug induced coma.

학교 문화예술교육 정책의 내용 계열성에 관한 연구

김영순,전영은 한국문화교육학회 2011 문화예술교육연구 Vol.6 No.4

이 연구의 목적은 김대중 정부부터 이명박 정부에 이르기까지 학교 문화예술교육 정책의 내용 관련 계열성을 분석하여 학교 정책의 변화추이를 제시하는 데 있다. 이 연구에서는 문화정책백서, 문화예술교육정책백서, 문화향수 실태조사 및 문화예술교육 정책 관련 각종 연구보고서 등을 활용하여 김대중 정부, 노무현 정부, 이명박 정부의 학교 문화예술교육의 내용들을 파악하였다. 먼저 계열성을 분석하기 위하여 두 가지 분석 준거를 제시하였다. 그 다음으로 각 정부의 학교 문화예술교육 정책에 대하여 살펴보았으며, 학교 문화예술교육을 위하여 시행한 사업을 구체적으로 기술하였다. 김대중 정부의 학교 문화예술교육 사업은 교과 시간의 예술교육, 재량시간, 방과 후 교육, 강사풀제 등이 있었으며, 노무현 정부의 학교 문화예술교육 사업은 교과 시간의 예술교육, 예술강사 지원사업, 학교-지역사회 연계 문화예술교육 시범사업, 문화예술교육 선도학교 지원사업, 문화예술분야 교원 전문성 강화 지원, 예술꽃씨앗학교 지원사업, 방과 후 교실 지원, 학교축제지원, 폐교활용 지원 등이 있었다. 또한 현 이명박 정부의 학교 문화예술교육 사업은 교과시간의 예술교육, 예술강사 지원사업, 예술꽃씨앗학교 지원사업, 문화예술교육 선도학교 지원사업, 특별강사제도 운영, 문화예술분야교원 전문성 강화 지원, 초등학교 바둑교실 지원사업, 문화예술교육기회 확대사업, 명예교사 운영사업, 소외계층 아동청소년 문화예술교육 지원사업, 유아문화예술교육 지원사업 등을 시행하였다. 이 연구는 각 정부의 학교 문화예술교육 정책 내용 관련 계열성을 교과시간의 예술교육, 예술강사 지원사업, 문화예술분야 교원 전문성 강화 지원, 문화예술교육 선도학교 지원사업 등 네 가지의 사업을 각 정부 정책의 내용에 따라 중복, 차이, 강조, 발전, 확대의 개념으로 분석하였다. The purpose of this study is to analyze how Korean Arts and Culture Education of School Policy Contents from the Kim Dae-jung government to Lee Myung-bak government are changed. The sequence will be examined by analyzing the Arts and Culture Education of School of Kim Dae-jung government to Lee Myung-bak government. Above all, the Arts and Culture Education of School Business and Policy Contents will be mainly studied. First of all, this study will be deal with two forms that present sequence analyze methode of each government Arts and Culture Education of School Policies. The criterion of the analysis of the sequence are repetition, difference, emphasis, development, and expansion. This study is analysed on the each government policy contents of the books published by Ministry of Culture, Sports and Tourism(MCST), Korea Arts and Culture Education Service, Korea Culture and Tourism Institute, particularly the Culture Policy white paper from 2001 to 2009, 2006 Arts and Culture Education Policy white paper.

자궁내막에 발생한 점막 연관 림프조직 (MALT) 림프종 1예

전균호,조현진,박성균,김천복,김대연,김종혁,김용만,김영탁,목정은,남주현 대한부인종양 콜포스코피학회 2003 Journal of Gynecologic Oncology Vol.14 No.4

Non-Hodgkin's 림프종의 약 40%는 결절외(extranodal) 림프종으로 대개 위장관에서 발생하며 이들 중 점막 연관 림프조직(mucosa-associated lymphoid tissue: MALT)에서 기원한 림프종은 MALT 림프종으로 분류된다. 위 외의 부위에서 원발성으로 발생하는 MALT 림프종은 매우 드물지만 실제 거의 모든 신체 장기에 발생하는 것으로 알려져 있는데, 가장 흔한 부위인 위 외에도 폐, 갑상선, 침샘, 눈물샘에 발생하고, 드물게 안구, 유방, 방광, 신장, 흉선 등에도 보고된 바 있다. MALT 림프종은 오랜 기간동안 원격 전이하지 않고 국소 병변으로 남아 있는 특징이 있어 치료 방향 또한 국소 병변의 치료에 집중되며, 예후도 림프절 기원의 림프종에 비해 양호한 것으로 알려져 있다. 본 저자 등은 자궁 내막에 원발성으로 발생한 MALT 림프종 1예를 경험하였기에 문헌 고찰과 함께 이를 보고하고자 한다. Mucosa associated lymphoid tissue (MALT) lymphoma can rarely develop primarily in extranodal sites other than stomach which is the most common site for it. Other rare primary sites are small intestine, colorectum, esophagus, lung, thyroid, salivary gland, lacrymal gland, breast and skin. MALT lymphoma represents a distinct clinicopathologic features: it is usually localized to their original site for a long time and shows much more favorable prognosis than lymphoma at other site, but some MALT lymphoma can arise simultaneously or successively in different organ or give rise to another MALT lymphoma of other organ and can be multifocally disseminated or recurred. We report a very rare case of high grade B-cell lymphoma of mucosa associated lymphoid tissue (MALT) of the uterine endometrium, which was confirmed by immunohistochemical assay.

L1210 세포증식에 대한 Glycyrrhizin의 억제작용 기전

殷載淳,徐龍勳,權鎭,柳東和,吳贊鎬,蘇俊魯,全焄,黃甲洙 우석대학교 의약품개발연구소 1996 藥學硏究誌 Vol.1 No.-

The purpose of this research was to investigate the mechanism of inhibitory action of Glycyrrhizin(GZ) on the proliferation of mouse leukemia cell-line, L1210 cells. The cytotoxic activity was tested using a colorimetric tertrazolium assay(MTT assay), the apoptosis was tested using flow cytometry. Nitric oxide(NO) production form mouse peritoneal macrophage was tested using a Griess method and the phagocytosis of human polymorphonuclear cells was tested using a lucigenin chemiluminescence. GZ ingibited the proliferation of L1210, BALB/c 3T3 cells and mouse thymocytes at 50 ug/ml/ GZ did not affect nitric oxide production from mouse peritoneal macrophages in vitro, but ingibited nitric oxide production from lipopolysaccharide and y-interferon treated macrophages. Macrophages of GZ-administered mice accelerated NO production. The proliferation of L1210 cells apoptosis of L1210 cells were induced by co-culture with macrophage of GZ-administered mice. The apoptosis of L1210 cells were induced by co-culture with macrophage of GZ-administered mice. GZ increased the phagocytosis of human polymorphonuclear cells. These results suggest that GZ inhibit the proliferation of L1210 cells not only as a direct cytotoxic agent o tumor cells, but also by the enhancement of NO production and phagocytic activity.

병원 근로자들의 고용형태에 따른 직무 스트레스와 삶의 질의 관계

전은숙,이강숙,이선영,유재희,홍아름 大韓産業醫學會 2009 대한직업환경의학회지 Vol.21 No.1

목적 본 연구는 병원에 종사하는 정규직 비정규직 근로자의 직무스트레스와 삶의 질 수준을 파악하고 직무스트레스와 삶의 질과의 관련성 및 삶의 질에 영향을 미치는 요인을 규명하기위해 수행되었다 방법 자기기입형 설문조사를 실시하였으며 정규직 172명 비정규직 189명이 최종 분석하였다 일반적 특성과 한국인 직무스트레스 측정도구-단축형 (Korean occupational stress scale short form) 삶의 질 측정을 위한 도구 WHOQOL-BREF를 사용하였다 결과 정규직에 비해 비정규직에서 직무스트레스 수준이 높았다 정규직은 직무요구도와 직장문화의 항목에서 비정규직은 직무자율성 직무불안정성 보상부적절의 항목에서 직무스트레스 요인이 유의하게 많았다 삶의 질수준은 정규직 근로자에서 유의하게 높았으며 심리적 영역 사회적 영역 생활환경 영역에서 비정규직보다 유의하게 높은 수준을 보였다 결론 정규직과 비정규직 근로자의 직무스트레스 요인과 삶의 질 수준은 달랐다 고용형태를 막론하고 직무스트레스는 삶의 질에 부정적인 영향을 미치고 있었으며 비정규직은 직장문화로 인한 스트레스 요인이 많을수록 삶의 질이 낮았다 따라서 병원근로자의 삶의 질 향상을 위하여 적절한 관리 혹은 프로그램이 제공되어야 할 것이며 특히 비정규직 근로자의 직무스트레스를 일으키는 요인들에 대한 적절한 관리가 필요할 것이다 Objective This study was conducted to evaluate the relationship between job stress and quality of life for hospital workers by type of employment Methods Data were obtained for 361 workers in a large hospital 172 of whom were categorized as typical workers defined by permanent employee and 189 of whom were categorized as atypical workers defined by fixed term contraction Job stress was assessed using the Korean Occupational Stress Scale Short Form and the World Health Organization Quality of Life-BREF Questionnaire Results Atypical workers had significantly higher scores for job related stress in the domains Of insufficient control over work job insecurity and lack of reward in the workplace compared with typical workers who had higher scores for stress in the domains of job demands and occupational climate Test scores also indicated that typical workers had a significantly better quality of life than atypical workers especially in terms of mental health social relationships and environment Conclusion These findings suggested that factors contributing to job-related stress were different between typical and atypical hospital and typical workers are likely to have a better quality of life

미국이민 한국노인의 우울 및 건강상태 분석

전은영,김숙영,,김귀분 노인간호학회 2005 노인간호학회지 Vol.7 No.2

Purpose: The purpose of this study was to analysis of depression and health status in Korean-American elderly. Method: This was a descriptive study. The subjects comprised 151 elderly aged 65 years or over living in U.S.A. The instruments used for this study were the Short form Geriatric Depression Scale by Sheikh and Yesavage(1986) and the Geriatric Depression Scale Short Form Korea by Wares and Sherbourne(1993). The data were analyzed using frequency, t-test, ANOVA, and Pearson correlation. Result: In Korean-American elderly, 71.5% of subjects had depression. Pearson correlation analysis revealed that depression had a statistically significant negative correlation with health status. And elderly with depression were more decreased on health status than the others. Analysis of depression according to demographic characteristics showed that there were statistically differences for education level and type of income source. Analysis of health status according to demographic characteristics showed that there were statistically differences for education level, spouse existence, and type of income source. Conclusion: It is concluded that more than half of Korean-American elder had depression. Therefore social support and health promotion program were recommended as the nursing interventions in order to reduce depression in Korean-American elderly.

기능성 생식, 다이어트식 및 장개선제가 비만개선에 미치는 영향

전태일,전은자,김창성,이주용,안홍석,임병우,최영숙,박웅채,박동기 建國大學校附設農業資源開發硏究所 2001 農資源開發論集 Vol.23 No.-

Obesity is defined as an excess of body fat and is closely related to diabetes, hypertension and heart disease. Dietary cure has been paid attention as a method for preventing from or curing obesity. The effect of some food products developed in this laboratory, such as, functional saengsik (Health & Joy saengsik), diet food (Health & Joy diet meal) and intestine function activator (Cell-pa, commercial name) on curing and protecting from obesity were investigated. Diet program was applied to 31 adults (Males 22, Females 9) with above 120% body mass index (BMI). After diet program was applied, body weight, body fat and fat weight decreased by 1, 4.8 and 4.5% (p<0.01), HDL-cholesterol increased by 3.6% and LDL-cholesterol and atherogenic index decreased by 6.6 and 7.7% (p<0.05). Consequently, the food products developed in this laboratory effectively reduced the obesity.

남한 내 북한이탈주민들의 3년간 사회의식 변화 및 생활 만족도에 대한 추적연구

전우택,유시은,조영아,홍창형,엄진섭,서승원 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.3

Objectives : The aim of this study was to examine the change in attitudes and satisfaction level of North Korean defectors in South Korea over a 3 year period (2001-2004). Methods : In our first study in 2001, a total of 200 detectors were interviewed. In the follow up study after 3 years, 151 defectors were re-interviewed by an in-person interview. Results : The level of satisfaction to the governmental support policy to defectors decreased significantly. However, the general level of satisfaction increased slightly (from 3.52 to 3.56 ; 5-score scale). This shows that North Korean defectors are stably adapting to South Korean society. The level of satisfaction significantly correlated with the defectors' confusion of the different value systems, the defectors' understanding of the South Korean people, satisfaction with their physical and mental health, and the Prejudice of South Korean people to defectors. In terms of the attitudes, the type of schooling, the military service and the communist party membership in North Korea were not related to the change in attitude. However, there was a significant correlation with gender and age. Women showed a greater change in attitude compared to men. Older people had difficulty in understanding the South Korean people, but they showed little psychological affiliation to North Korea. Moreover, they showed a high level of satisfaction with the economic situation in South Korea and had an optimistic viewpoint for their future than younger people. Even though many defectors attended churches, religion was not associated with the level of satisfaction or their change in attitude. Conclusion : The factors that influence the level of satisfaction and attitudes of North Korean defectors have changed over 3 years. Therefore, the government, nongovernmental organizations (NGOs) associated with defectors and the churches need to be more sensitive to these changes and make plans to support the adaptation of defectors to South Korean society.