林土의 有機物의 分解速度와 無機養料의 垂直分布에 關한 考察

金遵敏,張楠基,鄭玩鎬 서울대학교 교육대학원 학술연구회 1966 論文集 - 서울대학교 교육대학원 Vol.3 No.-

Kim Choon Min, Chang Nam Kee and Chung Whan Ho: Decomposition rate of plant residue and the vertical distibution of mineral nutrients in the woodland soil. The relationship between decomposition rate of litter and the amount of mineral nutrients dispersed to the soil horizons were studied on the oak and pine forest stand. The results are as follows: 1. Decomposition rate of litter was highest in the F horizon of the oak stand, however in the pine stand it was highest in H horizon. 2. The correlation coefficients between decomposition rate and humus, organic carbon, moisture content, calcium, phosphorus, and nitrogen in the pine stand are; 0.90, 0.98, 0.76, 0.98, and 0.88, in oak stand; 0.97, 0.93, 0.92, 0.97, 0.74 and 0.73. 3. Factors which affect the decomposition rate of litter are humus, organic carbon, moisture content, calcium, phosphorus and nitrogen. 4. Among the variables, PH, moisture content and phosphorus under the oak and pine forest showed significant differences in each horizon. 5. C/N ratio of pine stands is higher than that of oak stands studied. 6. The vertical distribution of mineral nutrients is highly related with the amount of humus accumulated on top soil.

移用·充足 연구에 대한 批判的 考察· : 放送媒體를 中心으로

全煥盛 청주대학교 사회과학연구소 1984 한국사회과학연구 Vol.2 No.-

The purpose of this study is to review critically the uses and gratifications approach focusing on its conceptual and methodological problems. As is well known, uses and gratifications research is audience centered, asking what people do with mass media than what the mass media do to people. It can be summarized as concerned with the social and psychological origins of needs, which generate expectations of media exposure, resulting in need gratifications and other consequences, perphaps mostly unintended ones. In recent years this uses and gratifications approach to the study of mass media has become one of the dominant theoretical frameworks for inquiry into audience orientations. But it has at the same time come under some serious criticism for structural, theoretical, and methodological weaknesses. Major critical points to that approach can be sumerized as follows; 1. The uses and gratifications approach has some tautological shortcomings of functional theories in general. 2. The approach concentrate on the individual-as-system rather than individual-within-a-system. 3. The approach is taken to task as fundamentally 'atheoretical', as being more a research strategy or hueristic than a theory. 4. The approach fail to provide any systimatic linkages between media gratifications and their social and psychological origins. 5. The approach does not defined concepts such as 'functional', 'use' 'gratifications' 'need' and 'motive', clearly. 6. The approach has a number of problems with the notion of the 'active audience, including a great deal of variance in meaning for the term, a tendency to treat activity as an either/or matter, and fails to recognize that activity might vary across both media and time. Swanson argues that audience activity should be defined only in terms of the assignment of meaning-selectivity during interpretation as opposed to selective exposure or selective attention. 7. The uses and gratifications approach relies on self-report data. Inherence, this method forces respondents to treat all exposure as the result of deliberate choice ignoring possible roles of habit, social expectations, causal encounters, etc., and risks eliciting conventional beliefs about media use because it demands a degree of awareness and analytical ability that respondents may not have. Also it is subject to distortion because of its retrospective nature, and. provides no independent evidence for the existence or importance of respondent-identified needs or gratifications. From the several critics outlined above, it is evident that further development of a theory of media gratifications depends, first, on the clarification of its relationship to the theoretical traditions on which it so obviously draws and second, on systematic efforts toward conceptual integration of empirical findings. For the theoretical development, following priority issues have to be studied in the future; 1. Typologies of Audience gratifications 2. Relevant theory of social and psychological needs. 3. Sources of media gratifications 4. Relationship between gratifications and media attributes. 5. Media attributes as perceived or intrinsic 6. The social origins of audience needs and their gratifications. 7. The versatility of sources of need satisfaction.

Site-directed Mutagenesis에 의한 RBP(Ribose Binding Protein)의 #5-Ala의 치환과 rbsB103 복귀 돌연변이의 분리

정환웅,백광희 경희대학교 유전공학연구소 1995 遺傳工學論文集 Vol.7 No.-

Ribose-binding protein (RBP) of E coli function in the periplasm as a component of a high affinity transport system for ribose and as a primary receptor for chemotaxis toward ribose. A mutant (rbsB103) in the signal sequence of RBP has a defect in the export of the protein to the periplasm. The intragenic suppressors for rbsB103 were isolated genetically. One of them had a change at 5th amino acid of RBP. In order to assess the role of the 5th amino acid in the transport of rbsB103, we substituted the alanine of 5th position with various amino acids by site-directed mutagenesis. The mutants replaced by Arg, Asp, Pro, or Ser at 5th amino acid of RBP can suppress the defect of protein transport.

大邱達城公園 入場客의 行態

李奐基 啓明大學校 産業經營硏究所 1980 經營經濟 Vol.12 No.1

The pourpose of this study is to present the various data for better establishment of tourism geographical policy as well as to contribute to the improvement of park-planning, landscape gradening, and facilities and management of parks in implementing the urban park project. To analyze and identify the behavior pattern of the visitors of Dalseong Park,, the actual research on the characteristics and the distributions of the tourists has been emphasized. The details of the actual research on the visitors of Dalseong Park is as follows: 1) Research period: 14-20 May, 1979(one week-since the number of the visitors in the time marked the highest in the year) 2) Research method: personal interviews and written questionaires. 3) Selection of sujects: Rendom sampling method. 4) Number of respondents: 558 persons. In order to prove the process of changes and regional distributions of the visitors: some data and additional informations provided by the Office of Dalseong Park and the Park Division of Daegu City have been utilized in drawing the diagrams and maps. The summary of the examination on the behavior pattern of the visitors is as follows: 1) 73.3% of the total visitors are youth -most of the males are in twenties while the females are in teens. By measures above citioens, young or old, man or woman would be able to rest and eojoy their leisure time in the pleasant surrouodings and would make a park an urban-resource to play a part of a??tracting sight-seers to Daegu.

급성 바이러스간염의 간침생검조직소견

정환국 대한의학협회 1973 대한의학협회지 Vol.16 No.12

텔리비젼 뉴스의 社會的 現實構成 機能에 관한 연구 : 연구경향과 문제점 및 대안적 방안을 중심으로

全煥盛 서강대학교 언론문화연구소 1989 언론문화연구 Vol.7 No.-

장애인의 소득분배구조와 근로연계 소득지원방안 연구

유완식 한국장애인고용촉진공단 고용개발원 2007 장애와 고용 Vol.17 No.2

본 연구는 장애가구의 소득분배구조와 장애인의 노동공급행위를 실증적으로 분석하여 장애가구의 빈곤 실태를 밝히고, 장애인의 고용증대를 수반하는 근로연계 소득지원방안을 제시하고자 하는 것이다. 이러한 연구는 현행 장애인 의무고용제도가 안고 있는 일하는 장애인의 저소득문제를 해결하기 위한 실증적 근거를 제공하기 때문에 근로연계 급여제도(in-work benefit system)에 관한 사회복지정책에 있어서 중요한 의미를 갖는다. 장애가구의 소득분배구조를 분석한 결과 2005년 현재 5분위 소득계층의 최하위 20%에 속하는 장애가구 비중은 39.0%, 소득의 차이를 고려한 FGT지수로 측정한 빈곤규모는 장애가구의 10.8%에 해당하는 0.1084로 나타나 모두 비장애인의 2배에 달했고, 2001년 이후 이러한 차이는 개선되지 않고 있는 것으로 나타났다. 장애인의 소득에 대한 노동공급행위는 비보상임금효과와 비보상임금탄력성이 각각 -1.6023, 3.9114로 추정되었다. 장애인의 유보임금수준이 낮아 저소득 상태에서도 소득효과가 대체효과를 능가하여 임금상승은 노동공급을 감소시킬 뿐만 아니라 근로소득도 함께 감소시키는 것으로 나타났다. 또한, 국민기초생활보장대상자에게 지급하는 기초급여의 노동시장참가율과 노동공급효과는 각각 0.00018, 0.0828로 추정되어 기초급여가 장애인의 경제활동참가나 노동공급을 억제하지는 않는 것으로 나타났다. 이러한 결과는 향후 장애인의 고용증가를 억제하지 않고 저소득문제를 개선하기 위해서는 근로소득을 급여표준으로 하는 소득지원정책보다는 근로소득과 노동시간을 급여표준으로 하고, 노동시장 참가자에 대한 급여감소율을 낮추는 것이 바람직한 것으로 요구되었다. Income support for low income families is on the top of the political agenda in Korea. In-work benefit are characterized by making eligibility conditional on working. This paper proposes in-work benefit schemes for low income workers with disabled people in korea. According to the analysis with KLIPS (Korean Labor & Income Panel Study) pooling data from 2003 to 2005, the effect of wage rate on labor supply was significant and negative. It turns out that adding conditioning benefit receipt on working for at least a specific amount of time to earning income tax credit is the most sufficient work incentive and cost efficient reform.

CSPAM: 닫힌 빈발 시퀀스 패턴을 위한 효과적인 가지치기 전략

황환규 강원대학교 정보통신연구소 2009 정보통신논문지 Vol.13 No.-

Sequential pattern mining finds all of the frequent sequences satisfying a minimum support threshold in a large database. However, when mining long frequent sequences, or when using very low support thresholds, the performance of currently reported algorithms often degrades dramatically. In this paper we present a novel algorithm, CSPAM (Closed Sequential PAttern Mining), using only closed frequent sequences which are small subset of very large frequent sequences. When systematically exploring the search space of closed frequent sequences, we present two novel pruning strategies, which prune the unpromising parts of search space effectively. The experimental results show that the proposed method outperforms the previous algorithms.

첨가제 변화에 따른 반도체용 수지성형물의 물성변화

김환건 서경대학교 1996 論文集 Vol.24 No.-

The physical properties of epoxy molding compound(EMC) according to the change of additives have been investigated in order to study the relationship between the change of content and grade of additives in EMC for semiconductor encapsulation, and physical properties of EMC. The flexural strength and flexural modulus as mechanical properties were measured, and thermal expansion coefficient, temperature of glass transition(Tg), and thermal conductivity as thermal properties, and spiral flow as moldability have been investigated to see the change of physical properties of EMC. In case of the content change of additives, carbon black, wax, and curing catalyst, the change of spiral flow as moldability is represented remarkably, comparing other physical properties. The change of modifier grade makes sharp differences in all physical properties of EMC, so that the optimization of modifier should be required for target devices to obtain best quality of EMC.

1920-1940年代 韓國 侍人들의 精神的 志向性의 考察 : 詩語에 나타난 '불'의 이미지를 中心으로

朴煥瑢 圓光大學校大學院 1982 學位論叢 Vol.8-1 No.-

Image is one of the central structure of poetry. Image of poets is a sign rather than a symbol, and the sign represents beings of present, past, and future, about things, happenings, and conditions: Image has an intention. According to theory of Poetic Imagination of a French scientific philosophist and metaphysician of imagination, Gaston Bachlard, this thesis intends to study the mental intention of Korean important poets from 1920s to 1940s through 'fire' image. As a result of study, we can see that reverie before fire has three directions by means of the chance of time; direction toward past, toward present, and toward future; reverie of recollection andrecurrence (So-Weol Kim, Jee-Yong Cheong), reverie of present diffusion(Yo-Han Choo, Jeong-Joo Seo),and reverie of transcen-dence (Yong-Wun Han, Doo-Jin park). This intends to study about intention of poets through 'fire' image symbolized by language in interrelationships of Korean poetry that plays a role of bridge between Korean modern poetry and Korean contemporary poetry.