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주물공장에서 배출되는 플라이애시를 이용한 시멘트 벽돌의 강도특성에 관한 실험적 연구
진치섭,김희성,신동익 부산대학교 1995 生産技術硏究所論文集 Vol.48 No.-
본 연구는 주물공장 플라이애시의 물리적·화학적 특성을 규명하고 이를 이용한 시멘트 벽돌의 강도 특성을 실험적으로 규명하는 것이다 특히, 주물공장 플라이애시의 성분 분석 결과 분말도가 일반 화력발전소 플라이애시에 비해 3.5배 정도 크게 측정되었다. 이러한 물리적 성질의 차이가 포졸란 활성도와 워커빌리티에서 일반 플라이애시와 서로 다른 메카니즘을 갖게 된다. 시멘트 벽돌은 플라이애시를 시멘트 용적의 0 %, 5 %, 10 %, 15 %, 20 %, 25 %, 30 %, 35 %, 40 %, 45%, 50 % 만큼씩 대체한 각각의 경우에 대해 제작하여 치수, 흡수율 및 압축강도를 측정하였으며 측정 결과 플라이애시를 시멘트 용적의 45 % 까지 대체하여도 KS 규격에서 정한 시멘트 기준치를 만족하는 것을 알 수 있었다. This study dealt with the strength characteristics of cement bricks using casting foundry fly ash. For this purpose, fly ash was sampled Young-Hwa casting foundry and analyzed for physical and chemical properties. As analyzed results of fly ash, fineness of casting foundry fly ash was 3.5 times as much as that of thermoelectric power plant station. Because of this difference, it is expected that pozzolanic activity of concrete using fly ash of casting foundry will be different from another fly ash. Cement Bricks were tested to evaluate brick performance when 0 to 50 percent of the portland cement by volume was replaced with fly ash of casting foundry As a result, we found that the absorption and strength of bricks using casting foundry fly ash were over KS criterion when the fly ash replaced 5∼45 % of volume of cement.
허진,최원혁,조진혁,함영희,홍정범,정성규,김현,허동 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.2
Two men were admitted to hospital with flank pain, hematuria, which was diagnosised as ureteral stone. Elevation of aspartate aminotransferase (AST) without typical pattern of toxic hepatitis was observed. Careful history taking, several laboratory tests, abdominal and pelvis computered tomography was done. Findings from theses examinations supported the clinical diagnosis of ureteral stone complicated of exercised induced rabdomyolysis. Early recognization of rhabdomyolysis in clinical setting is important, because clinical manifestations have ranged from asymtomatic elevation of creatine kinase to acute renal failure which is a life threating medical emergency. Authors report two cases of exercised induced rhabdomyolysis initially admittied as ureteral stone managed with hydration
김윤진,이정규,박형숙,김동희,손용진 부산대학교 병원 암연구소 2008 부산대병원학술지 Vol.- No.23
Purpose: The proportion of centenarians has been increasing in many parts of the world, and the issues of longevity has been the subject of the research concern in recent years. We has conducted the first study with centenarians in Busan, 2006 and this is a follow-up study for prospective research of centenarians in Busan. Methods: The demographic database of Busan Centenarian Study existing in 2006 wasutilized for our studies. Twenty-five centenarians or a proxy were contacted and eight individuals agreed to have a direct interview using a questionnaire. Data were collected from May to June 2007. Results: Of the 2Scentenarians, 2(8%)were men and 23(92 %) were women. The average age was 101.3 years and the highest one was 106 years of age. The majority of the centenarians were living with family, most of those were living with their sons. Among 8 visited centenarians, there were 2 drinkers(2S%) but no one was smoking. Among them, 7 centenarians (87.5%) had regular eating pattern and, 3 centenarians(37.5%) participated social activities. Conclusions: The centenarian in Busan is likely to be healthy and they are living with their family. The centenarians study in Busan has important meaning to understand the health of centenarians.