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琴東赫,鄭春植,朴勝濟 成均館大學校 科學技術硏究所 1987 論文集 Vol.38 No.1
Adsorption equilibrium moisture content for short grain rough rice of Akihikari variety were determined at 20, 30, 40 and 50℃ and relative humidities ;ranging from 46.3 to 90.9 percent. A static method of equilibrium was used by suspending 16g of samples in jars with different saturated salt solutions. Triplicated samples were used for all trials. A new quadratic equation was proposed to correlate the EMC data and compared with Henderson, Chung-Pfost, and Day-Nelson equations. The goodness of fit of each equation was evaluated by determining the "Error Mean Square(EMS)". Quadratic equation gave the smallest EMS value followed by the Henderson equation.
박금주 ( Park Keum Joo ),홍지형 ( Hong Ji Hyung ),조주식 ( Cho Ju Sik ),최원춘 ( Choi Won Choon ) 한국농공학회 2001 한국농공학회 학술대회초록집 Vol.2001 No.-
This study was carried out to investigate the filtering performance of using fresh compost as a biofilter. Three biofilter vessels were made using fresh compost as a biofilter media. A mixtures of dairy manure, soy sludge, rice hulls and sawdust were composted in a pilot scale reactor of 605L to generate the ammonia emission. The ammonia emission from the compost reactor was passed through three biofilters and collected in the boric acid trap to measure the ammonia emission. Filtering performance was influenced by the depth of biofilter media. Efficient filtering effect was acquired for the depth above 40 cm.
제금련,하광원,성락선,이종필,박상용,정영자,조창희,조소연,이춘길 식품의약품안전청 2001 식품의약품안전청 연보 Vol.5 No.-
국내 생산 한약재의 생산관리지침작성을 목적으로 작약, 황기, 구기자 등 한약재 생산지의 토양오염도, 수질오염포 및 지역에 따른 성분편차를 알아보기 위하여 생산지의 토양, 수질, 성분분석을 실시하였다. 토양오염도 측정을 위하여 카드뭅, 비소, 납, 6가크롬, 구리, 아연, 수든, Af안, 페놀 등 8개 성분을 측정한 결과 모두 기준치 이하였다. 수질오염도 측정을 위하여 수소이온농도, 화학적산소요구량, 염소이온, 비소, 수은, 페놀, 6가크롬, 테트라클로로 에틸렌, 질산성 질소, 카드윰, 시안, 유기인, 납, 트리클로로 에틸렌 등 14항목을 측정한 결과 검사항목 14개 성분에서 대체로 기준치 이하였다. 그러나 작약재배지역인 전람 화순지역의 쑤질검사에서 질산성질소와 COO의 항량애 기준치를 약간 상회하였고, 한 개 지역의 토양에서 pH값이 높게 나타나 알카리성향을 리는 것으로 나타났다. 작약의 패오니플로린 성분에 대한 지역간 편차는 거윽 나타나지 않았다. 구기자의 베타인 성분에 대한 지역간 편차도 작약의 경우와 마찬가지로 거의 일짙한 양상을 나타내었다. 우수한약재 생산관리지침 작성을 위한 설은에 대한 결과는 별도로 첨부하였다 This study was accomplished to establish the Good Agricultural Practice guideline(GAP)for the medicinal plants cultivated in Korea. For three items of Paeoni albiflora, Astragalus membranaceus, Lycium chinense by main producing district, the standard of the soil and the water contamination and the deviation of main compound of medicinal plants by regional groups was investigated. In all 8 items of soil contamination test;Cd, As, Pb, Cr^(+6), Cu, Zn, Hg, CN, phenol, all values of them were in below to their standard level. For analysis of water contamination, most of 14 items as follows pH, COD, cloride ion, As, Hg, Phenol, Cr^(+6), tetrachloro ethylene, NO₃-N, Cd, CN, organic phosphorus, Pb, trichloro ethylene were detected by lower than their own standard level. However, in the water quality test of Whasoon area in Chonnam province, concentration of Nitrogen and COD were highly detected more than its standard level and soil of another area, indicated alkaline character by pH 9.2. There was no variation between producing district in paeoniflorin content of Paeoni albiflora. And the betaine contents in Lycium chinense was similarly appeared.
Kim, Jong-Choon,Kim, Jin Young,Yeom, Seok Ran,Jeong, Bo Yoon,Hwang, Hey-Zoo,Park, Keum-Joo,Lee, Seung-won WILEY-VCH Verlag 2008 Proteomics Vol.8 No.17
<P>In a previous study, we examined the physiological responses of male Sprague–Dawley rats over a 4-week exposure to concrete and clay cages. No general toxicological changes were observed in rats exposed to either of the two cage types in summer. Under winter conditions, however, various general toxicological effects were detected in rats housed in concrete cages, although rats housed in clay cages showed no such effects. The infrared thermographic examination indicated that skin temperature in the concrete-housed rats was abnormally low, but not so in the clay-housed rats. We examined proteomic changes in the serum of rats housed in winter in concrete and clay cages using two-dimensional differential in-gel electrophoresis and mass spectrometry/mass spectrometry. Five proteins were identified and quantitatively validated; all were cold stress-induced, acute phase proteins that were either up-regulated (haptoglobin) or down-regulated (alpha-1-inhibitor III, alpha-2u globulin, complement component 3, and vitamin D-binding protein) in the concrete-housed rats. These results suggest that the 4-week exposure to a concrete cage in winter elicited a typical systemic inflammatory reaction (i.e. acute phase response) in the exposed rats.</P>
액체로켓의 연소안정을 위한 유량공급에 관한 실험적 연구
박희호,김유,조남춘,금영탁,Park, Hee-Ho,Kim, Yoo,Cho, Nam-Choon,Keum, Young-Tag 대한기계학회 2002 大韓機械學會論文集B Vol.26 No.6
In liquid rocket engine, propellant feed rate is proportional to approximately square root of the pressure difference between injector head and combustion chamber. This ΔP depends on the engine design, but in general on the order of 50psi. However, during ignition period, especially for the pressurized feed system, combustion chamber pressure is almost atmospheric and large ΔP causes over flow of propellants which may lead to catastrophic accident due to hard start. Hard start may be prevented by applying cavitating venturi or/and two step ignition. In cavitating venturi, evaporated propellants near the venturi throat become chocked and flow rate depends on only upstream condition. In two step ignition propellants are supplied to the liquid engine in two different flow rate. First step, to avoid hard start, small amount of propellants are supplied to build up chamber pressure in safe zone, then full propellants to ensure design pressure. In this study, both cavitating venturi and two step ignition method were used for the hot test and hard start problem was completely solved.
Assessing Quality and Risk of Bias among Experimental Studies in Clinical Nursing
Jae Sim Jeong,Kyung Choon Lim,Jeong Soon Kwon,Chan Yeong Kwak,Kyung Hee Kim,Sung Jae Kim,Kyung-sook Lee,Kwang Ok Park,Joo Hyun Kim,Keum Soon Kim,Kyoung Eun Lee,Eul Soon Kim,Myoung Ae Choe 한국간호과학회 2011 한국간호과학회 학술대회 Vol.2011 No.10
정재심(Jeong, Jae Sim),임경춘(Lim, Kyung Choon),권정순(Kwon, Jeong Soon),곽찬영(Kwak, Chan Yeong),김경희(Kim, Kyung Hee),김성재(Kim, Sung Jae),이경숙(Lee, Kyung-Sook),박광옥(Park, Kwang Ok),김주현(Kim, Joo Hun),김금순(Kim, Keum So 한국근거기반간호학회 2018 근거와 간호 Vol.6 No.1
Purpose: This study was conducted in order to explore quality assessment tools applicable to research in the nursing area and to suggest the results of applying such tools in assessing the quality of experimental studies in nursing. Methods: We selected three experimental and 119 quasi-experimental studies with control groups in the Journal of Korean Clinical Nursing Research. We applied Cochran collaboration’s tool for assessing the quality of randomized controlled studies. Also, items developed by researchers were applied for assessing the quality of experimental studies in nursing. Results: Three studies (2.5%) used an adequate randomized sequence generation and two of them concealed the allocation sequence. The 63.1% of the studies applied blinding and 51% of the studies did not have missing values, or had insignificant missing values. In addition, 85.2% were not likely to report selectively, and 36.1% were assessed to have raised the risk of bias. Conclusion: Many studies had too a high risk of bias to be used as evidence-based data in the designs and methods of experimental studies. We found that it is necessary to inquire into research designs, methods, and quality assessment tools desirable for evidence-based practice in nursing.