Streptococcus anginosus 균혈증에 동반된 상완 골수염 및 주변부 연조직 농양 1예

한우진,조문숙,이정현,안홍대,윤규현,서종구,김진용,김수연,박윤수,서일혜,조용균 대한감염학회 2008 감염과 화학요법 Vol.40 No.5

Streptococcus anginosus is a normal flora found in multiple body sites and belongs to the Streptococcus milleri group, It has often been associated with pyogenic infection, such as periodontitis, endocarditis, pulmonary abscess and abdominal or cerebral abscess. Also uncommonly, it can cause osteomyelitis. A 42-year-o1d man was admitted due to gastric ulcer perforation. At 12th hospital day, left humeral osteomyelitis and soft tissue abscess developed, Streptococcus anginosus grew in blood culture, He was treated with intravenous penicillin and surgical debridement of the necrotic tissue which lead to a satisfactory result. We report a rare case of Streptococcus anginosus-induced humeral osteomyelitis and soft tissue abscess.

정신지체 학생의 구강실태 및 우식활성도에 관한 연구

한수경,김남순,조홍규,송호준,최충호,최남기 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.1

본 연구의 목적은 정신지체 학생의 구강건강 실태 및 치아우식 활성도를 평가하여, 학생들의 구강건강 증진을 위해 필요한 교육 방안을 모색하고, 실제적인 구강건강 관리 향상을 위한 기초 자료를 마련하고자 하는 것이었다. 광주광역시 소재 S 정신지체특수학교 유아부부터 고등부까지의 학생을 대상으로 조사를 실시하였다. 구강건강실태를 평가하기 위한 구강검사는 213명에 대해 시행하였으며, 치아우식활성도 검사는 197명에 대해 시행하였다. 치아우식활성도 평가를 시행한 197명의 정신지체 학생 중 우식활성이 고도인 학생은 33명(16.77%)으로 나타났으며, 13세 이하가 그 이상의 연령에 비해 치아우식활성도가 높았다. 치아우식활성도의 경중도와 치은염 유무와는 관련성이 없는 것으로 나타났다. 정신지체 장애학생의 치아우식활성도 경중과 치아우식경험지수와의 상관성을 평가한 결과, 치아우식활성도가 증가할수록 우식경험치율과 우식경험치지수가 높은 양상을 보였으며, 특히 유치의 경우 우식경험유치율 및 우식경험유치지수는 치아우식활성도와 높은 상관성을 보였다. The purpose of this study is to evaluate oral health status, caries-inducing bacterial activity of the mental retardation students, and developing motivation method for improving oral hygiene management by clarifying the relationship between caries- inducing bacterial activity and oral health status of mental retardation students. Caries experience indices, caries susceptibility test, gingival health evaluation, and oral hygiene management and oral health survey were performed. Results were as follows: 1. The DMFT index of disabled students(12 years) was 2.07. 2. The gingival inflammation was occurred more frequently in older ages. 3. There also was a high positive correlation between caries incidences and the results of caries-inducing bacterial activity test especially in deciduous teeth. This result suggested that the Dentocult SM mutans test as a caries activity test is a reliable method for measuring the status of dental caries in mental retardation students. Because it would motivate the mental retardation students to care more actively for their oral hygiene if they learn how much dental caries-inducing bacteria are living in their mouth by observing the bacterial colony on the cultured test strip, it can become a possibly efficient educational tool for the mental retardation students.

아토피피부염 소아 청소년에서의 정신병리와 양육태도 연구

홍강의,정재석,김규한 대한소아ㆍ청소년정신의학회 1999 소아청소년정신의학 Vol.10 No.1

탱크 모델에 의한 洪水 流出量 解析에 關한 硏究

洪昌璿,崔漢圭 江原大學校 産業技術硏究所 1983 産業技術硏究 Vol.3 No.-

This study aims at the determination of the coefficienties of runoff and infiltration affecting runoff. The rting curve is more available than the peak flood runoff to determine flood control plan of flood control reservoir and the volume of hydroelectric power plant, or to make multipurpose dam. In hydrologic analysis and design, it is necessary to develop relations between precipitatio and runoff, possible using some of the factors affecting runoff as parameters. In order to calculate the runoff discharge, the runoff process constituting elements are divided to the surface runoff, the subsurface runoff and the groundwater runoff. By comparing the computed hydrograph with the measured hydrograph, determinned the watershed TANK Model constant Varying the tank model constant for approximating the computed hydrograph to the measured hydrograph.

베체트 장질환의 외과적 치료 성적

김기흥,박규주,양한광,박재갑,김상준,이건욱,최국진,김진복 대한대장항문학회 1997 Annals of Coloproctolgy Vol.13 No.3

폐도자기로부터 제조된 재활용 소지의 소결특성

황규홍,한현근,김상우,이종국 조선대학교 생산기술연구소 2007 生産技術硏究 Vol.29 No.1

As increasing the porcelain as a home ware, the amount of waste porcelain is increased in factory or at home every year. It is very important to recycle the waste porcelain from environmental and economic point if views. Recycling of porcelain body to batch composition can be reduced the manufacturing cost of porcelain by production of raw materials and dropping of sintering temperature about 150~200℃. In this study, we prepared porcelain ceramics by mixing recycled waste ceramic raw materials and normal ceramic raw materials. The waste ceramic raw materials were recycled by crushing and ball milling waste porcelain bodies. The recycled ceramic raw materials after milling have a mean particle size about 22-40 ㎛ with irregular shape and narrow particle size distribution. Shrinkage and sintered density of compacts from recycled ceramic batch composition increased with increasing sintering temperatures, however the sintered density was independent on the amount of the recycled ceramic raw materials. The batch composition containing 30% of recycled ceramic raw materials showed the highest sintered density. Sintered density was decreased over the temperature of 1200℃ due to the creation of cracks on surface and in bulk. It may be concluded that sintering temperature can be reduced in the processing of porcelain body by adding of recycled ceramic raw matehals to normal batch composition.

고콜레스테롤혈증 환자 진료의 질 향상을 위한 임상 지침 리마인더(Reminder)와 추적 관리지의 효과

조한규,박혜순,조홍준 한국의료QA학회 1997 한국의료질향상학회지 Vol.4 No.2

Background : Hypercholesterolemia is a major independent risk factor of coronary heart disease. Practice guidelines for management of hypercholesterolemia had been made in several developed countries. This study was undertaken to assess the effect of practice guideline reminders and flow-sheets to improve the quality of management of hypercholesterolemia. Methods : Practice guideline reminders and flow-sheets based on National Cholesterol Education Program Adult Treatment Panel Ⅱ guidelines, were placed on the office desks of outpatient department of family medicine at the Asan Medical Center. Before this intervention, we educated he doctors to use these reminders and flow-sheets. The charts of all patients who had cholesterol levels greater than or equal to 240㎎/㎗ during 4 months before and after introduction of reminders and flow-sheets, were reviewed retrospectively We compared the performances of physicians about management of hypercholesterolemia between pre-intervention period and post-intervention period. Results : The detection rate of hypercholesterolemia in post intervention period was increased to 83.2% compared by 715% in pre-intervention period. Risk factor analysis for coronary heart disease increased significantly from 16.9% to 68.7%. Adequacy of management was 19.2% in pre-intervention period and 78.0% in post-intervention period. It showed statistically significant improvement in management of hypercholesterolemia. Conclusion : This study suggested that practice guideline reminders and flow-sheets were the effective methods in improving the quality in management of hypercholesterolemia.

병재배 폐톱밥을 이용한 양송이 복토재료 개발에 관한 연구

김홍규,이희덕,김용균,한규홍,문창식,김홍기 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-

애느타리 병재배후 탈병한 톱밥을 3월 중순 퇴적하여 부숙시킨 결과 퇴적기간에 따른 폐톱밥의 부숙정도는 퇴적 30일이후에 가장 컸으며 부숙 소요일수는 최소 48일이었다. 퇴적 기간에 따른 폐톱밥의 pH 및 총 질소 함량은 부숙이 진전됨에 따라 증가하는 경향이었고 총 탄소 및 C/N율은 시간이 경과함에 따라 감소하는 경향이었다. 식양토에 부숙이 완료된 톱밥을 부피 비율로 10, 30, 50%씩 첨가하여 복토 재료로 사용한 결과 30% 첨가시 식양토 단용 처리보다 A. bisporus 균사 생장이 촉진되고 초발이 소요일수가 5일 빠르며, 수량에 있어서도 28% 증수되었다. After bottle culture of Pleurotus ostreatus, sawdust was taken out from the bottle and accumulated in the middle of March, and then composted. As the result, Y value was decreased rapidly 30 days after composting, and it was decreased slowly after 30 days. It is considered that 118 days is required for composting, however, it is possible to use for casing material after at least 48 days composting. The pH and total nitrogen content of sawdust based on composting period had tendency to increase as composting was processed. Total carbon and C/N rate had tendency to decrease as time went on. Based on the rate of 10, 30 and 50%, each sawdust was added to clay loam used as casing material for culturing A. bisporrus. Among various treatments, the mycelial growth of A. bisporus was more favorable in the treatment of 30% sawdust than in the single treatment of clay loam. Based on the date necessary for primodium formation of A. bisporus, the primodium formation in the treatment of 30% sawdust was reduced to about 5 days as compared with that of any other treatments When 30% sawdust was added to clay loam used as casing material for culturing A. bisporus, the yield of its fruiting body was increased to 28%.

폐굴껍질을 혼입한 콘크리트의 기초적 성질에 관한 실험적 연구

어석홍,이형진,황규한 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-

The purpose of this study is to investigate the fundamental properties of concrete mixed with crushed oyster shells(OS) as coarse or fine aggregates. For this purpose, five reference mixes with W/C ratios of 0.4∼0.6 at intervals of 0.05 were considered. The replacement proportion of OS was varied with ratios of 0, 10, 30, 50 and 100% by volume of fine or coarse aggregate in the reference mixes. OS was washed and crushed for using as aggregates. New chemical reaction between crushed OS aggregate and and cement paste was tested through XRD and SEM analysis. The compressive and flexural strength properties were considered. Strength tests were carried out at the ages of 1, 3, 7, 14, and 28 days. The variation of workanility, air content and density, drying shrinkage of the specimens with different proportions of OS were also studied. Finally, the hollow concrete block using OS as a substitute material for fine aggregate was made for testing the application of OS. Experimental results showed that any new chemical reaction did not occur due to mixing crushed OS in ordinary concrete. The workability and strengths decreased with increase in proportion of OS. The same trend was observed in density and unit weight, but air content increased due to the inherent shape and texture of OS, which showed a possibility to produce light weight concrete with low strength by using OS as coarse aggregates for concrete. Tests on hollow concrete block showed that the compressive strength and absorption ratio were satisfied with quality requirements when the fine aggregate was substituted with OS up to 50% in volume.

平面式 太陽熱集熱機를 利用한 紅蔘乾燥

張奎燮,金相達,洪淳根,尹漢敎 한국응용생명화학회 1982 Applied Biological Chemistry (Appl Biol Chem) Vol.25 No.3

密閉式물 交換太陽 熱集熱乾燥製置를 利用하여 紅蔘을 乾燥할때의 集熱效率, 乾燥效率. 乾燥特性 및 製品의 品質을 各各 調査하였다. 乾燥其間은 太陽熱集熱製置를 利用한 것이 慣行法보다 3分의 1程度를 더 短 할 수 있었다. 乾燥其間中集熱機의 最大效率은 14.42% 最低效率은 4.73%였고 乾燥效率은 集熱製置를 利用한 것이 28.34%, 對照區가 13.45%로서 純粹乾燥效率은 14.89%이었다. 紅蔘의 乾燥率曲線은 減率乾燥期만을 나타내었으며, 이 때의 式은 Y=50.7023t.-014138 이었다. 乾燥紅蔘의 色度는 慣行法과 比較하여 더 높았으며, diphenylpicryl hydrazyl 遇元能도 같은 傾向을 보였다. A closed solar collector drying system by water exchange was evaluated for the drying of ginseng. The thermal efficiency of solar collector, drying efficiency, drying characteristics and product quality were investigated. The drying period was reduced by one-thirds in comparison with typical method. The maximum and minimum thermal efficiency of the solar collector during drying period were 14.42%, and 4.73%, respectively. The drying efficiency of solar collector and control system showed 28.34%, and 13.45%, respectively: net drying efficiency being 14.8%. The drying rate curve of red ginseng showed only falling rate period, and its equation was Y=50.7023t.^(-0.4138) The brown color intensity of red ginseng was higher in solar collector drying system than in typical method, and reductivity by diphenyl picryl hydrazil solution in red ginseng extract showed similar result to brown color intensity.