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      • KCI등재

        지난 4년간 학회지 "신경정신의학" 심사 평가보고

        오병훈,권준수,남궁기,김승현,지익성,김창윤,하규섭,박원명,김성곤,오강섭,김정범,이수정,정한용,이창욱,박용천,이영문,김세주,이병욱 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.5

        Four Years Reports of "Journal of Korean Neuropsychiatric Association" during 2001 to 2005 were evaluated by 18 Editorial Board of Korean Neuropsychiatric Association. We investigated the articles to specific fields and rejection rate etc. by different section chiefs. Although several problems concerning review time duration and rejection guideline issues indicated but generally all reviewer processes proved relatively clear and concise criteria. Through these objective and systematic evaluation Processes, "Journal of Korean Neuropsychiatric Association" will develop a good journal.

      • KCI등재

        The Bioenergy Conversion Characteristics of Feedlot Manure Discharging from Beef Cattle Barn

        Seung-Yong Oh,Chang-Hyun Kim,Young-Man Yoon 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.6

        This study was carried out to assess bioenergy conversion efficiency by biogas and solid fuel production in the cattle feedlot manure discharged from beef cattle barn. Feedlot manure was sampled from the cattle farmhouse located in Yong-in, Gyeonggi during the mid-fattening stage, periodically. The chemical characteristics, BMP (Biochemical methane potential) and HV (Heating values) of feedlot cattle manures were analyzed. Total solid contents of cattle feedlot manure were in the range of 29.98~44.28%, and volatile solid contents were in the range of 23.53~24.47%. In the anaerobic digestion of cattle feedlot manure, the methane production potential has increased from 0.141 to 0.187 Nm<SUP>3</SUP> kg<SUP>-1</SUP> -VSadded. The methane production of fresh cattle feedlot manure showed the range 0.141~0.187 Nm<SUP>3</SUP> kg<SUP>-1</SUP> -Manure (average 0.047 Nm<SUP>3</SUP> kg<SUP>-1</SUP> -Manure), the LHVs (lower heating values) of the produced methane were in the range of 316~560 kcal kg<SUP>-1</SUP> -Manure (average 400 kcal kg <SUP>-1</SUP> - Manure). In the direct combustion of fresh cattle feedlot manure, the LHVs were measured in the range of 747~1,271 kcal kg<SUP>-1</SUP> -Manure (average 916 kcal kg<SUP>-1</SUP> -Manure), and LHVs of solid fuel which have the water content of 20% were in the range of 2,694~2,876 kcal kg<SUP>-1</SUP>-Manure (average 2,791 kcal kg<SUP>-1</SUP> -Manure). Then, the drying energy of average 443 kcal kg<SUP>-1</SUP> -Manure was consumed in the production of solid fuel which has a water content of 20%. Therefore, the direct combustion of cattle feedlot manure showed about 2.3 times higher LHV than the LHV of methane produced by anaerobic digestion. And LHV of solid fuel was about 6.0 times higher than the LHV of methane produced by anaerobic digestion. Then, the production of solid fuel presented more bioenergy conversion efficiency than the biogas production in the bioenergy use of cattle feedlot manure.

      • KCI등재

        The Bioenergy Conversion Characteristics of Feedlot Manure Discharging from Beef Cattle Barn

        Oh, Seung-Yong,Kim, Chang-Hyun,Yoon, Young-Man 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.6

        This study was carried out to assess bioenergy conversion efficiency by biogas and solid fuel production in the cattle feedlot manure discharged from beef cattle barn. Feedlot manure was sampled from the cattle farmhouse located in Yong-in, Gyeonggi during the mid-fattening stage, periodically. The chemical characteristics, BMP (Biochemical methane potential) and HV (Heating values) of feedlot cattle manures were analyzed. Total solid contents of cattle feedlot manure were in the range of 29.98~44.28%, and volatile solid contents were in the range of 23.53~24.47%. In the anaerobic digestion of cattle feedlot manure, the methane production potential has increased from 0.141 to $0.187Nm^3kg^{-1}-VS_{added}$. The methane production of fresh cattle feedlot manure showed the range $0.141{\sim}0.187Nm^3kg^{-1}$-Manure (average $0.047Nm^3kg^{-1}$-Manure), the LHVs (lower heating values) of the produced methane were in the range of $316{\sim}560kcalkg^{-1}$-Manure (average $400kcalkg^{-1}$-Manure). In the direct combustion of fresh cattle feedlot manure, the LHVs were measured in the range of $747{\sim}1,271kcalkg^{-1}$-Manure (average $916kcalkg^{-1}$-Manure), and LHVs of solid fuel which have the water content of 20% were in the range of $2,694{\sim}2,876kcalkg^{-1}$-Manure (average $2,791kcalkg^{-1}$-Manure). Then, the drying energy of average $443kcalkg^{-1}$-Manure was consumed in the production of solid fuel which has a water content of 20%. Therefore, the direct combustion of cattle feedlot manure showed about 2.3 times higher LHV than the LHV of methane produced by anaerobic digestion. And LHV of solid fuel was about 6.0 times higher than the LHV of methane produced by anaerobic digestion. Then, the production of solid fuel presented more bioenergy conversion efficiency than the biogas production in the bioenergy use of cattle feedlot manure.

      • KCI등재후보

        율피, 솔잎, 호프의 아세톤 추출물의 항산화작용

        오승희,김용욱,김명애 한국식생활문화학회 2004 韓國食生活文化學會誌 Vol.19 No.4

        The extracts 70% acetone from chestnut inner shell, pine needle and hop flower were added to soybean oil, lard, soybean oil-water emulsion and lard-water emulsion in order to test the antioxidant activity compared with α-tocopherol, respectively. Induction period was determined by Rancimat and the antioxidant activities were recorded in the order of pine needle〉chestnut inner shell〉hop〉tocopherol in the soybean oil, and in the order of tocopherol〉chestnut inner shell〉pine needle〉hop in the lard treatment. These three extracts showed similar high antioxidant activity by peroxide value test in soybean oil, soybean oil-water emulsion, lard and lard water emulsion, respectively. The chestnut inner shell extract would be the highest antioxidant agent among the extracts tested in this study. Ellagic acid of chestnut inner shell and flavanol of pine needle would increase the antioxidant activity according to analysis result of polyphenol compound, respectively.

      • ESO기법을 이용한 신뢰성 기반 형상 최적설계

        오영규,박재용,황승민,임민규,박재용,한석영 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

        This paper presents a reliability-based shape optimization (RBSO) using the evolutionary structural optimization (ESO). An actual design involves uncertain conditions such as material property, operational load and dimensional variation. The deterministic optimization (DO) is obtained without considering uncertainties related to uncertainty parameters. However, the RBSO can consider the uncertainty variables because it has the probabilistic constraints. In order to determine whether the probabilistic constraint is satisfied or not, simulation techniques and approximation methods are developed. In this paper, the reliability-based shape design optimization method is proposed by utilizing the reliability index approach (RIA), performance measure approach (PMA), single-loop single-vector (SLSV), adaptive-loop (AOL) are adopted to evaluate the probabilistic constraint. In order to apply the ESO method to the RBSO, a sensitivity number is defined as the change in the displacement. Numerical examples are presented to compare the DO with the RBSO. The results of design example show that the RBSO model more reliable than deterministic shape optimization.

      • KCI등재

        모 제약회사 근로자들의 직업성 천식 유병률과 약제 분말 노출수준

        오성수,최용휴,김은아,이영목,장재길,유장진,박승현,김태균,정수영,김규상,강성규 大韓産業醫學會 2006 대한직업환경의학회지 Vol.18 No.2

        목적: 제약회사에서 직업상 천식의 유병 규모를 파악하고 작업공정에 대한 작업환경 측정을 통해 제약회사의 약제 분말에 대한 노출수준을 평가하고자 하였다. 방법: 제약회사에서 약제 분말에 노출되는 근로자를 대상으로 천식을 선별하기 위하여 설문조사 및 진찰, 혈액검사, 폐기능 검사 그리고 피부단자시험을 실시하였고, 각 부서별 공정에 따라서 총분진과 항생제 또는 효소제 분말에 대한 작업환경 측정을 실시하였다. 직업상 천식이 의심되는 근로자에 대하여 기관지과민성에 대한 검사(메타콜린을 이용한 비특이 기관지유발시험)와 약제 분말 기관지유발시험을 실시하여 확진하였다. 결과: 설문조사 및 진찰에서 작업 관련 천식 증상이 있는 근로자는 11명(34.4%)이었고, 약제 분말을 이용한 피부단자시험에서 1+ 이상 반응을 보인 근로자 10명(31.2%)이었다. 비특이 기관지유발시험 결과 8명(25.0%)이 양성(PC20 ≤16 mg/ml)이었다. 약제 분말 기관지유발시험을 통해 직업상 천식으로 확진된 근로자는 5명(15.6%)이었다. 작업환경 측정에서 원료를 충진하거나 투입하는 작업 그리고 정립작업에서 약제 분말에 대한 노출이 많았다. 결론: 제약회사에서 직업상 천식은 주로 제조공정 중 약제 분말에 노출된 근로자에서 발생하여, 증상 및 직업성 천식의 유병률이 높았다. 따라서 원료를 충진 또는 투입하는 작업과 정립작업 등 제조과적에서 약제 분말 노출을 줄이기 위한 세심한 주의가 필요하여, 약제 분말을 취급하는 근로자에 대해서는 천식 증상 조사뿐 아니라 정기적으로 피부단자시험, 비특이 기관지유발시험 등을 실시하여야 할 것이다. Objectives: After the investigation of one worker with occupational asthma, we surveyed the preva- lence of occupational asthma and the exposure level of pharmaceutical dust of 32 workers in a pharmaceutical company. Methods: Thirty-two of the 90 employees participated in the survey which consisted of questionnaire, blood sampling, spirometry and skin prick tests with 8 common allergens as well as 9 antibiotics and 2 enzymes. Various indices of the working environment were also measured. Subjects who had a symptom suggestive of work-related asthma or positive skin prick test were further investigated by PC20 methacholine. Nine subjects who had a PC20 result of 16 mg/ml or less (n=7) or had work-related symptoms and positive skin prick test (n=2) were referred to undergo a specific bronchial provocation test to phar- maceutical dust in an academic allergic disease center. Results: Eleven of 32 workers (34.4%) had a work-related symptom suggestive of occupational asthma. Ten (31.2%) showed positive skin prick test. 8 (25.0%) had a PC20 result of 16 mg/ml or less (indicative of significant bronchial hyperresponsiveness), and 5 (15.6%) had a positive result on the specific bronchial provocation test. Exposure levels of stuffing, input of raw materials and screening process were relatively high. Conclusions: This survey showed that pharmaceutical workers have an increased risk of occupational asthma. Although pharmaceutical factories maintain a relatively good working environment, careful control of respiratory tract exposures, especially during stuffing, input or raw materials and screening process, is important to prevent occupational asthma. Pharmaceutical workers need to undergo regular skin prick and methacholine bronchial provocation tests, as well as asthmatic symptom survey, to ensure the early detection and prevention of occupational asthma.

      • KCI등재

        한국인 양극성 장애와 5-HT_2A Receptor Gene Promoter-1438A/G Polymorphism과의 연관성 연구

        오승용,지익성,이영호 대한신경정신의학회 2001 신경정신의학 Vol.40 No.1

        연구목적: 최근 5-HT□수용체 유전자 promoter의 -1438A/G 다형성이 보고되었고, 이러한 -1438A/G 다형성이 기분장애와 연관이 있는지 알아보려는 연구가 시도되고 있다. 저자 등은 -1438A/G 다형성이 한국인 양극성 장애의 발병에 있어서 유전적 요인으로 작용하는지 알아보기 위하여 본 연구를 시행하였다. 방법: 양극성 장애 환자 120명과 정상 대조군 120명을 대상으로 중합효소 연쇄반응을 이용하여, 5-HT□ 수용체 유전자 promoter -1438A/G 다형성의 유전자형과 대립유전자의 빈도를 비교하였다. 결과: 1) 양극성 장애 환자군의 5-HT□수용체 유전자 promoter -1438A/G 다형성의 유전자형은 A/A 14(12%), A/G 66(55%), G/G 40(33%), 정상 대조군의 유전자형 A/A 30(25%), A/G 59(49%), G/G 31(26%)로 양군간에 유의한 차이가 있었다. 2) 대립유전자의 빈도는 양극성 장애 환자군에서 A 0.39, G 0.61, 정상대조군에서 A 0.49, G 0.51로 양군간에 유의한 차이가 있었다. 결론: 5-HT□ 수용체 유전자 promoter -1438A/G 다형성이 한국인 양극성 장애의 발병과 연관이 있을 수 있다는 가능성을 제시한다. Objectives : This study was designed to investigate the association between 5-HT□ receptor gene promoter -1438A/G polymorphism and bipolar disorder in a Korean population. Methods : 5-HT□ receptor gene promoter -1438A/G polymorphism were typed with Po-lymerase Chain Reaction in 120 patients with bipolar disorder and 120 normal controls. Results : The distributions of the genotype in the bipolar disorder with A/A, A/G, G/G were 14(12%), 66(55%), 40(33%), and in the controls were 30(25%), 59(49%), and 31(26%). The allele frequencies of the bipolar disorders with A and G were 94(39.2%), 146(60.8%), and in the controls were 119(49.6), and 121(50.4), respectively. There were significant differences in genotype distributions and allele frequencies of -1438A/G between patients with bipolar disorder and normal controls. Conclusion : These results suggest that 5-HT□ receptor gene promoter -1438A/G poly-morphism may be related to the development of bipolar disorder in a Korean population.

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