특수 콘크리트를 이용한 공원시설 관련 제품에 관한 연구

박봉우,김진아,신애란,전병건 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

본 연구는 특수 콘크리트를 사용하여 공원시설 관련 제품을 생산하기 위한 기초 자료를 얻을 목적으로 수행하였다. 현재 국내에서 생산하여 사용되고 있는 공원 관련 시설물을 대상으로 소재에 대한 선호도와 소재의 특성을 우편을 통한 설문 조사를 하였다. 설문의 결과 가장 선호하는 소재는 목재, 인조목, 철금속, 비철금속, 석재 등의 순서로 나타났다. 재료 별 특성은 12개 공원 관련 시설과 7개 시멘트 콘크리트 제품을 대상으로 재료별로 10개 항목에 대한 특성을 조사하여 matrix로 나타내었다. 이렇게 조사된 결과를 토대로 하여 공원 관련 제품 생산을 위한 시험적인 모델로 특수 콘크리트를 사용한 블라드와 콘크리트 판넬의 모형을 제시하였다. The purpose of this study was to obtain basic information in order to produce of park facility products using by special concrete. This study made a survey of preference and character of the raw materials on park facility products throughout the country by mail questionnaire. As a result, the ranking of preference on raw materials were wood, imitation wood made from cement concrete, steel, and nonferrous metal. Also, the 10 characters of raw material on the 12 items of park facility products and 7 items of cement concrete products investigated and their results showed by matrix. Based on these results we suggest the pilot models of bollard and concrete panel for pedestrian using special concrete.

한국 핸드볼 경기의 내용분석과 미래방향 : Content Analysis and Future Directions

박천조,백상서,채병준,안길영 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This study is to investigate the researches with handball game by research domain and methodological aspects during its 10years (1990-2000). As results of analyzing methodological structure, characteristics of subjects by research domain and the number of articles statistical techinics by years. 1. the researches of handball games need longitudinal study with academic arena in accordance with the globalization trends. 2. The number of case and representative is to provide academic suport therefore it is nesessary to provide effect size for handball games for identify susficious questions sample sizes for students and professors in the field of measurement & evaluation 3. It is proud to acculately need to test methodological research domains in order for performing handball related researches journal to be acknowledged by scholars in other parts of the world. the focus must be on equality rather than on quantity.

소아에서 외상성 질식 증후군에 대한 임상적 고찰

박승현,최승필,나병호,황주일,나석주,전해명,김세경 大韓應急醫學會 1996 대한응급의학회지 Vol.7 No.1

Traumatic asphyxia has often been described as a rare clinical syndrome characterized by cervicofacial cyanosis and edema, multiple petechiae, and subconjunctival hemorrhage after a severe crush injury of the thorax or upper part of the abdomen. The pathogenesis of traumatic asphyxia is that after compression of the chest or upper abdomen, intrathoracic pressure increased suddenly. Blood is forced out of the right atrium through the valveless innominate and jugular veins into the head and neck. This sudden increased thoracic pressure in small venules and capillaries causes rapid dilation and minute hemorrhages producing the petechiae often seen. Treatment is supportive and should be focused on the associated injuries. The prognosis for traumatic asphyxia is very good despite the alarming initial physical appearance. If the patient survives the initial insult, the prognosis is excellent. Neurologic sequale may be permernant. We experienced five case of the traumatic asphyxia, and its clinical and pathophysiologic features are discussed. Increased awareness of this syndrome by emergency physicians will result in better reporting ad understanding of its clinical implications.

만성 간염과 간경변증의 고해상 초음파 소견

정덕환,구봉식,최종철,박병호,남경진 동아대학교의과대학 1997 동아의대학술지 Vol.9 No.2

스치로폴 粒子를 使用한 輕量벽돌에 관한 實驗的 硏究 Ⅱ

朴春根,姜丙熙 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.1

The purpose of this experimental study is to analyze the physical character of the lightweight cement brick to be mixed the polystyrene beads. The results of experiment is as follows. 1. The more the grading of polystyrene beads is small and it is lean mixture, the thermal conductivity is low value than the specimen which polystyrene beads is not mixed. 2. The coefficient of water absorption is low value in any case than the reasonable coefficient of water absorption of the general cement brick. ("A" class, 9% and less) 3. The compressive strength of post-baking is reduced value than pre-baking and if it is rich mixture, its width is increased, and the more the mixture factor of polystyrene beads is increased, the more its width is reduced.

모발의 모간부에서 미토콘드리아 DNA 분석

박기원,전병원 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

폴리아믹산을 함유한 에폭시 수지의 기능화

박병천,이성길,이용택 慶熙大學校 材料科學技術硏究所 1997 材料科學技術硏究論集 Vol.10 No.-

Epoxy resin based upon the N,N'-diglycidylaniline was modified with poly(amic acid)(PAA). Prior to aromatic amine cure, the possible reactions in the epoxy resin/PAA blends were investigated used FT-IR and inherent viscosity techniques with the addition of 4,4'-diamino-3,3'-diethyldicyclohexylmethane(3DCM) as hardener. PI-modified epoxy(GAYA) blends were prepared by IPNs method. IR, TGA, DSC, DMA, TMA and UTM are used to measured the thermal and mechanical properties. Thermal stability increasing with increasing PAA content in blends. Lowering Tgs with increasing PAA content in blends are observed except for the blend modified with thermoplastic. Improvement of the impact strengths in J/M in the range 920∼2,412 are observed for blends and the improvement of the impact strength is closely related to the content of PAA in blends. A rough surface was observed by SEM examination on the propagation surface of the impact specimen, while a smooth surface is observed on the unmodified epoxy specimen. The morphological observations suggest the PAA segment may act as a toughening agent in the epoxy networks, thus contributing to the impact improvement of the blends.

糖尿病 集團檢診에 대한 費用效果分析

천병렬,박재용,감신,이경은 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.2

대구 지역의 일개 종합병원에서 실시한 1992년 건강 검진 결과 중, 20세 이상인 성인들을 연구 대상자로 하여 근로자 검진과 공무원 검진 자료에서 당뇨병 집단검진 항목 중 요당, 공복혈당 그리고 식후혈당 검사 결과와 공무원 검진 자료에서 성, 연령, 신장, 그리고 체중에 관한 자료를 수집하여 분석하였다. 당뇨병 집단검진의 효율성을 비용효과분석 기법으로 비교하기 위하여 기존의 근로자 검진 방법과 공무원 검진 방법, 기존의 근로자 검진 방법에서 2차 검사 항목 중 요당 검사를 제외한 대안 (A), 공복혈당검사만 직장에서 실시하는 대한 (B), 식후혈당검사만 직장에서 실시하는 대안 (C), 공복혈당검사를 직장에서 실시하고 음성자에게 식후 혈당검사를 직장에서 실시하는 대안 (D), 식후혈당검사를 직장에서 실시하고 음성자에게 공복혈당검사를 직장에서 실시하는 대안 (E), 그리고 요당검사만 직장에서 실시하는 대안 (F)에 대해 당뇨병 유소견자당 투입 비용을 산출하였다. 각 대안별 유소견자당 투입 비용은 기존 근로자 검진 방법이 37,767원, 기존 공무원 검진 방법이 50,441원, 대안 (A)는 37,433원, 대안 (B)가 27,645원, 그리고 공복혈당 음성일 때 식후혈당 양성인 비율을 2%로 고정한 경우의 대안 (C)가 28,541원, 대안 (D)가 38,458원, 그리고 대안 (E)는 38,488원이었다. 그런데 대안 (F)의 경우 양성예측도가 93%인 경우 유소견당 투입 비용이 18,689원으로 가장 적었지만, 양성예측도가 20%일 때는 88,106원으로 가장 많았다. 양성예측도가 64% 이상일 때 대안 (F)가 가장 비용효과적이었다. 결국 대안 (B)와 대안(F) 둘 중 하나가 가장 효율적인 검진 프로그램으로 생각되며 이는 요당 검사의 양성예측도에 의해 달라질 것이다. To evaluate the efficiency of the diabetes mellitus screening program, the records of screening examinations for general workers and official workers at a general hospital in Taegu city were analysed. Six alternatives of the diabetes mellitus screening program were compared in terms of cost-effectiveness. The screening program I which was already used in the examination for general workers, screening program II for official workers, alternative program (A) which was the same method as screening program I without urine sugar test for the second examination in a hospital, alternative program(B) with the test for fasting blood sugar(FBS) in a worksite, alternative program (C) with the test for postprandial blood sugar(PPBS) in a worksite, alternative program (D) with the first test for FBS and the second test for PPBS of negatives for FBS test in a worksite, alternative program (E) with the first test for PPBS and the second test for FBS of negatives for PPBS test, and alternative program (F) with the test for urine sugar in a worksite. To compare the cost-effectiveness between alternatives, the cost (Won) per positive detected for diabetes mellitus (cost-effectiveness ratio) was calculated. The cost per positive detected was 37,767 Won for screening program I, 50,441 for screening program II, 37,433 for alternative program (A), 27,645 for alternative program (B), and if it was assumed that the positive rate for negatives of FBS would be 2.0%, 28,541 for alternative program (C), 38,458 for alternative program (D), 38,488 for alternative program (E). However, that for alternative program (F) was varied with the positive predictive value(PPV) of urine sugar test for diabetes. The cost per positive detected was lowest(18,689 Won) when PPV when PPV was 93%, whereas, highest (88,106) when PPV was 20%. The critical value of PPV was 64%. The alternative program (F) was most efficient when PPV was 64% or more. Considering the prevalence for diabetes mellitus, PPV for urine sugar test, and feasibility of screening examination, alternative program (B) will be proved as the most efficient screening program. In conclusion, either program(B) or program(F) will be the most efficient method for screening a large population depending on the positive predictive value of fasting urine sugar test.

체육 서비스조직의 리더십유형과 직무만족 및 조직유효성 간의 관계

천길영,남궁완,최병학,박효찬,홍승달,정석현 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of the study was to examine the relationship among style of leadership, job satisfaction, and efficacy of sport service organization. In order to achive this purpose three reaserch questions were established. Participants for this study were 300 of 23-50 overaged public workers. Of participations valid data were 279. They completed a modified inventory of the style of leadership, job satisfaction and efficacy of sport service organization. More details, style of leadership Scale modified by Ahn(2000), job satisfaction by Ahn (2000) and efficacy of sport service organization by Kim(2001) were using after remodifing scale to investigate the purpose of this study. Results were analysed in quantitative approaches. Data were collected through self-administered survey. The most three meaningful results of the study were as follows; First, there was influenced to relationship between style of leadership and job satisfaction. Second, there was influenced to relationship between style of leadership and efficacy of sport service organization. Third, there was influenced to relationship among style of leadership, job satisfaction, and efficacy of sport service organization.

Mesh형 내부전극을 사용한 2중 원통형 오존발생기의 온도 의존특성

전병준,이상근,송현직,박원주,이광식 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.1

Nowadays, environment pollution caused by development of industrial society becomes a serious social problem. So, ozonized gas is suggested as a counter plan against the problem. In this paper, a double cylindrical type ozonizer has been designed and manufactured to improve ozone yield by cooling external electrode. The ozonizer equipped with three electrodes(central, internal and external electrodes) and two gaps. Discharge and ozone characteristics are described in this paper by varying flow rate( Q ) of oxygen suppling gas, temperature of cooling gas and supplied voltage.