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      • 퍼지이론을 이용한 구획배치 평가 기법에 관한 연구

        김수영,신성철,박준규,박정기 부산대학교 생산기술연구소 2000 生産技術硏究所論文集 Vol.58 No.-

        본 연구는 선박의 내부 공간에 대한 여러 구획 배치안들 중에서 최적의 배치안을 찾기 위해 배치안들을 평가하는 것을 목적으로 한다. 이런 공간에 대한 구획 배치 고려사항에 영향을 주고 컨트롤하는 두 가지 요소는 기능 구획간의 연관성과 공간이 위치하게 되는 환경이다. 여러 배치안들을 평가하기 위한 단계에서 수식화 하기 어려운 각종 설계 정보 및 이들 간의 상관관계를 파악하고 처리하기 위하여 퍼지 이론을 적용하는 기법을 제안한다. This study is objective to layout evaluation to find an optimal layout of the some compartment layouts in internal spaces of ship. In this compartment layout considerations about spaces, two factors which control and affect are association between functional compartments, and environment that space is located. At level to evaluate some layouts, we suggest method that applies to fuzzy theory to conduct and understand every design informations difficult formulating and their relationship.

      • 고온·알칼리성 Bacillus sp.의 Catabolite Repression 저항성 변이주로부터 Cellulase 및 Xylanase의 생산

        최수철,정영철,강갑석,심기환,성낙계 慶尙大學校 1990 論文集 Vol.29 No.2

        고온·알칼리성 cellulase 및 hemicellulase 생성 미생물을 분리할 목적으로 pH 10.3의 PY-CMC배지에서 55℃로 3회 연속 직접배양하여 효소 생성능이 우수한 20여균주를 분리하였고, 그 중에서 2개균주를 최종 선정하여 균학적 성상을 조사한 결과 고온·알칼리성 Bacillus속과 거의 일치하였다. 선정, 동정된 고온·알칼리성 Bacillus sp. F204와 F1020은 α-1, 4-glucose 등에서는 효소 생합성이 왕성하였으나, glucose와 같은 단당류에서는 효소가 전혀 유도되지 않았는데, 이 두 균주는 carbon catabolote repression을 받고 있었다. 2-deoxy glucose는 야생주에서는 강력한 repressor로 작용하였고, 야생주의 catabolite repression을 해제 시키는데 antimetabolite로 작용한다는 것이 밝혀졌다. NTG(500㎍/㎖, 50℃, 20∼60분)와 UV(2분) 처리후 2-DG(20mM)에 직접배양하여 강력한 catabolite repression resistant strain인 M-211과 M-367을 분리하였다. M-211과 M-367은 2-DG를 energy원으로 이용하였으며, glucose에 대하여 CMCase는 1.5%, avicelase 및 xylanase는 약 1.0%까지 저항성을 보였다. 또한 두개의 변이주의 효소 활성은 CMCase 2배, avicelase 1.5배 및 xylanase3배의 증가를 보였으며, 각 효소생합성을 위한 gene expression은 cAMP-independent transcription을 하는 것으로 나타났다. Cellulase and xylanase synthesis of thermophilic alkalophilic Bacillus sp. F204 and F1020 isolated in our lab, were repressed by glucose and induced by compounds structurally related to α-1,4 linkage (avicel cellulose and xylan et. al.). Catabolite repression-resistant mutants were obtained through treatment of NTG(500㎍./㎖), UV(2 min) and enrichment culture in 2-deoxy glucose (20 mM) containing PY-glucose on the wild type strain. T재 catabolite repression resistant mutants were not repressed by glucose and produced cellulase complex and xylansase when in grown in the presence of 1.0% glucose and 30mM 2-DC, which were repressors in wild type. Enzyme production was greater with the mutants (CMCase of 2 times, avicelase of 1.5 times, xylanase of 3 times) than with the wild type strains under various test conditions. T재 mutants M-211 and M-367 were potential catabolite repression resistant mutants and their gene expression was cAMP independent transcription.

      • 韓國女性의 閉經에 關한 硏究

        閔富基,丘秉參,李壽鍾 고려대학교 의과대학 1983 고려대 의대 잡지 Vol.20 No.3

        The climacteric that is sometimes associated with symptomatology, is the phase in the aging process of women marking the transition from the reproductive stage of life to the nonreproductive stage. During this climacteric phase, physiologic and sexual function is decreased of lost. The menopause is defined the cessation of menstruation for consecutive 12 months. The age of onset of menopause may make a difference by the individual women, and moreover it does appear to depend on various factors; socioeconomic status, cultural background, genetic, and health status. In the same country, the age of menopause does not appear significant difference for generation as being shown in that of menarchal age initiating menstruation. But it is influenced by racial, geographic, climate, and natural factors. In the advanced country, it has been studied about information of closely static results for people’s health status. The study is attempted for understanding of physiology of women, in sexual & maturated phase and menopausal status. Furthermore, it is indicated for the clinlcal diagnosis, family planning, and health status of the people. The author noted the following results about the age of onset of menopause, indicating the reproductive physiology of women, 3378 cases living on various area in Korea. 1. With observation of menopausal age of 6 areas in Korea, the mean age is 48.8 yrs. In Seoul (range 38-59 yrs. Frequent occurring age 46-49 yrs.), 48.2 yrs. In Kyungki area, (range 41-55 yrs., frequency 47-49 yrs.), 49.1 yrs. At Kangwon (range 38-57 yrs., frequency 47-51 yrs.), 8.2 yrs. In Choongchung(range 38-56 yrs., frequency 48-51 yrs.), 47.4 yrs. At Kyongsang (38-55 yrs. 45-50 yrs.), and 48.2 yrs. In Junla area (38-59 yrs., frequency 47-50 yrs.). 2. With persentile distribution of menopausal age according to distinction of age, onset of menopause is occurred in 5% at age 45, 80% at age 50 and 98.4% at ge 55. The mean age of menopause is noted 47.6 yrs. 3. By the observation of menopausal age according to distinction of parity, the mean age of menopauses 47.8 yrs. (range 38-57 yrs., frequency 45-57 yrs.) at multiparity, 47.9 yrs. at primiparity (range 38-54 yrs., frequent 45-49 yrs.), 48.2 yrs. at para 2 (range 38-60 yrs., frequency 48-56 yrs.), 47.7 yrs. and 47.9 yrs. at para 3 and para 4 or more group (range 38-60 yrs., frequency 46-50 yrs. at both group). And therefore, there is tend to lowering of menopausal age at para 4 or more groups than other groups. 4. In relation with the menopausal age and cohabitation with a family, the mean age is noted 46.8 yrs. at single group, 47.5 yrs. at group of living with a husband, and 48.5 yrs. at group of living with children. And therefore, menopause is occurred earlier in the single group than the other groups. And there is a significant difference in menopausal age between the single group and the other groups. 5. in relation with the education and the menopausal age, the mean age was noted 47.4 yrs. at no-educational group, 47.6 yrs. at primary educational group, 46.8 yrs. at middle school. There is tend to rising of mean menopausal age at primary educational group than middle school. 6. There is no significant difference for onset of menopausal age among the 6th decades, 7th decades and 8th decades at the postmenopausal women. The mean ages of the 6th decades 7th decades and 8th decades of the postmenopausal women were noted at 48.2 yrs., 48.1 yrs., and 48.0yrs., respectively.

      • 토끼의 기관지내 Bleomycin주입으로 유발된 폐간질병변의 방사선학적 및 조직학적 연구

        은충기,박수성 중앙대학교 의과대학 의과학연구소 1984 中央醫大誌 Vol.9 No.3

        The author has undertaken an experimental study inducing pulmonary interstitial lesion with bleomycin in rabbit. Bleomycin was instilled intrabronchially in single dose. 0.5㎎ and 1.0㎎ instillation of bleomycin in 0.05㏄ normal saline solution per 100g of body weight constitute bleomycin group A and B respectively, while 0.05㏄ instillation of normal saline constitutes a control group. Roentgenologic and histologic findings of pulmonary lesion from 2nd day to 56th day after intrabronchial instillation of bleomycin or saline solution were analyzed. The results were as follows: 1. Roentgenologic findings of bleomycin group included the increased density of variable patterns changing from alveolar density to mixed alveolar and interstitial density with lapse of time and heart shift to affected side in later stage, while those of control group were normal. 2. Histologic findings of bleomycin group were changed from inflammatory reaction to interstitial fibrosis with lapse of time. Adenomatosis, focal emphysema and bronchiolectasis appeared too. Minimal infiltration of macrophage in alveolar spaces was seen in control group. 3. Roentgenologic findings changing from alveolar density to mixed alveolar and interstitial density with lapse of time were correlated relatively well with histologic findings changing from the early inflammatory reaction in alveolar lumen and septa to the late interstitial fibrosis.

      • 死六臣의 思想과 文學 硏究

        徐首生,金文基 慶北大學校 東洋文化硏究所 1979 東洋文化硏究 Vol.6 No.-

        Sa Yuk Sin (six great sacrificed loyalists) are a incarnation of loyalty, because they censured immorality of King Se-Jo(世祖) who fled his nephew, King Dan-jong(端宗), and fought for King Dan-Jong's reinstatement. As Baekchon(白村) Kim Mun-Ki(金文起), a great loyalist, was also loyal to his principle and died for his Lord's reinstatement, we must adore him as loyal as Sa Yuk Sin. And so, we may call them Sa Chil Sin(死七臣) (seven great sacrifced loyalists). The characteristics of Sa Chil Sin's thoughts and their literary works are summarized as following. (1) They practiced the principle of loyalty itself, for they died to correct immorality and unjustice. (2) They made effort actively to establish the moral society on the basis of In(仁), the oriental humanism, and the equality of all the people. (3) They sacrificed themselves to preserve their integrity and wished for the peace of their nation than their welfare. (4) The spirits of their loyalty is eminently expressed on their chinese poetry and Sijo(時調). (5) They expressed their minds chiefly with four-to-eight line verses of chinese poetry, especially Sung Sam-Mun and Lee Gae wrote well with Jeolgu(絶句, chinese quatrain), and Park Paeng-Nyeon wrote well with Yulsi(律詩). (6) The subjects of Sijo(時調) written by them are mostly loyalty. And they symbolized the ideas of loyalty by comparative poetic dictions.

      • 잎담배 生産과 栽培環境과의 關係에 關한 解析的 硏究 : 第十二報 移植 및 被覆方法이 잎의 形質에 미치는 影響 VII. Influence of Planting and mulching Mathods on the Leaf Characteristics of Flue-cured Tobacco

        盧載榮,南基桓,李鶴洙 충북대학교 엽연초연구소 1978 煙草硏究 Vol.5 No.-

        This experiment was conducted to study the effect of planting and mulching methods on the some characteristics of the flue-cured tobacco leaf. The results obtained are summerized as fellows. 1.Plant type was changed according to planting time and mulching methods. As the plant type of early plating and mulching plot was changed to conical shape, so the light condition received of the plot was improved. 2.As the weight of unit leaf area and percentage of dry matter were high and dried up leaf ratio, leaf area contraction ratio and proportion of midrib were low in earley setting plot, so the leaf quality was good. But weight of a leaf and LAI were small. 3.In the view of leaf quality among the diffent leaf position, the lower and middle leaves of the non-temporary planting plot were especially good. 4.To increase the yield and to improve the leaf quality, it seems desirable to improve the leaf quality by early setting and to increase LAI by increasing the number of leaves.

      • KCI등재

        대전광역시 양축농가의 축분뇨 관리 실태 및 VOCs 농도 조사

        이봉덕,이수기,오홍록,허정민,정기철,김성복 충남대학교 농업과학연구소 2005 농업과학연구 Vol.32 No.1

        This study was carried out to investigate the style of livestock house, concentration of malodorous substances of livestock feces and livestock houses in Daejeon area. Among the livestock houses investigated, as most of cow pens(94.5%) have sawdust or chaff on the bottom, there was no leakage of feces out of pen. Most pig pens adopted slury style, but some of them currently use buffering material on the bottom. It is thought that there will be no possible contamination leakage. When it comes to hen house, all the broiler house use litters on the bottom and all the layer house use scrapper. It is also thought that there will be no possible contamination leakage. 3 out of 12 deer pens used buffering material on the bottom, 10 places were maintained in a traditional method, and 7 places left possibility of contamination leakage considering whether the roof was installed or not. The contents of ammonia, amine and volatile fatty acid in fresh feces were lower compared to rotten feces, but the concentration of sulfur-containing matter - hydrogen sulfide, methylmercapthan and ethylmercapthan were higher compared to rotten feces. In the case of malodorous ingredient in livestock houses, only small amount of ammonia and hydrogen sulfide were detected in pig pen and hen house, and other ingredients were not detectable. And those who are engaged in animal husbandry reacted negatively to the use of feed additives for decreasing malodor. In conclusion, it is not worrisome that contamination can be leaked out of animal raising facilities. But if we take into consideration that the point of investigation time is wintry season, there should be more considerate attitude. And feed additives for decreasing malodor need establishing criteria in the manufacturing process.

      • 경량 고강도 Mg-Zn계합금의 조직과 내식성에 관한 연구

        안효준,남태현,임수근,안인섭,허보영,김기원 慶尙大學校 1995 論文集 Vol.34 No.1

        The purpose in this study is to develope of high strength and corrosion reistant Mg-Zn system alloys by controlling microstructures and by adding of Cu elements. To produce optimum tesile strength,it is imperative to obtain effective grain refinment during casting. Optimal condition for grain size refining effect was obtained at the minmum composotion of 2wt% Cu or 1.5wt%So addition to Mg-6wt%Zn alloy.Age hardening behavior was experimented at the optimal compositions of the Mg-6wt%Zn, Mg-6wt%Zn-2wt%Cu and Mg-6wt%Zn-1.5wt%Si. The hardeness increment due to age hardening was at the Mg-Zn-Si alloy system. The improvement of corrosion resistanece by the addition with Cu is related to and increasing Zn/Cu ration in the intermatallic particles in the Mg-Zn system.Further improvements obtained by T6 treatment are related to the properties of the Mg-Zn phase,whih acts as a corrosion barrier by precipitating along the grainboundaries.Filiform corrosion observed soon after pit initiation and cellular form of pit propagation later in chloride media are explained in terms of solid solution matrix structure and the properties of air formed oxide.The information obtained from the fundamental research work is utilized in suggesting ways of improving the corrosion resistance of commercial AZ91.

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