• 제목/요약/키워드: Area effect

검색결과 12,707건 처리시간 0.039초

수산종묘방류사업의 경제성 평가 (A Economic Effects of Fish Seed Release)

  • 황진욱;이권혁;정달상;김광수
    • 수산경영론집
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    • 제36권1호
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    • pp.121-138
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    • 2005
  • This study was conducted to investigate the economic effect of the release of seed flounder to the central area of the West Sea, which was analyzed into both direct and indirect effects. The results showed that based on the data collected from partial area, the economic effect of flounder seed release reached 6.97 times, average catch proportion was 32.27$\%$, and recapture rate was 11.26$\%$, suggesting that economic effect was very high. In addition, it was observed that the recapture rate was greatly higher than 2.05$\%$, that of Break-Even-Point. It was noted that the increased catch by the release of seed flounder resulted in the increase in commission of sales and the increase in sports fishing. Another economic effect observed were diverse including the increase in income of fishing village, elevated spirit to proper management of fisheries resources, maintaining of willingness to live in fishing village through activation of local fishing village, prevention of illegal fishing including capture of juvenile fish, and the increase in the supply of sea food of high quality. It is emphasized that although the investigation was conducted in the same area, the results will vary by size at release, time at release and other factors. Finally, there is a need to expand species and area of study for more active economic analysis incorporating natural sciences.

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원자 현미경을 이용한 접촉 면적에 따른 마찰 및 마멸 특성 분석 (Effect of Contact Area on Friction and Wear Behavior in Atomic Force Microscope)

  • 최덕현;황운봉
    • 한국정밀공학회지
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    • 제21권12호
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    • pp.167-173
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    • 2004
  • Recently, it has been reported that frictional behavior at nanometer scale can be different from that at macro scale. In this article, friction and wear tests were conducted using an AFM to investigate the effect of real contact area on the coefficient of friction and wear property. SiO$_2$, Hica, and SiGe were used in friction test and the AFM tip was Si$_3$N$_4$. The real contact area between an AFM tip and flat surface was calculated by the Johnson-Kendall-Roberts (JKR) theory. Wear specimen was Mica, and the diamond tip was used. We found that the coefficient of friction is constant below a critical area, but it is degraded over the area. Moreover, it is found that wear depth increased rapidly from a certain load and was degraded as a function of the number of the scanning cycles. Also, the range of scanning velocity used in this study had little effect on the wear depth.

온라인.오프라인 기업(企業)의 명성(名聲), 신뢰성(信賴性), 사업영역(事業領域) 유사성(類似性)이 신규(新規) 의류(衣類)브랜드 태도(態度)에 미치는 영향(影響) (The Effect of on-line and off-line Corporate Reputation, Credibility and the Similarity of Business Area on the Consumer's Attitude toward the Clothing Products with Brand)

  • 김소희;김일
    • 패션비즈니스
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    • 제6권4호
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    • pp.17-31
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    • 2002
  • This study is, to the special company with corporate brand, to investigate the effect of its reputation, credibility and the similarity of business area on consumer's attitude toward its clothing products. It is another topic of the study to reveal statistical significance in comsumer's attitude when naming new product with two different brand strategy. The major findings of this study can be summarized as follows. First, there was positive relationship between corporate reputation and consumer's attitude toward new brand and also between corporate credibility and consumer's that. Second, corporate credibility is proven to be grown in proportion to company's reputation. In other words, a corporate credibility is grown with a corporate reputation. Third, the influence of similarity or fitness of business area has a positive effect on a attitude toward new brand. The case of use the new brand name, the variable had low effect on attitude toward new brand, comparing to the case of use the existing brand name but seems to be statistically significant. Fourth, comparing to the inclination toward company's product based on brand name, strategy of supporting brand extension is more effective than that of new brand name on evaluating company's reputation, credibility and the similarity of business area. Fifth, the similarity of business area and the interaction of brand name on the basis of the strategy of use the existing brand name(;brand extension strategy) and new one have significant effect on the inclination to a brand. When participating a new business, it is more effective that a company is extending its business where the similarity of business area is growing. For the case of low similarity, the brand-new strategy is proven to be effective.

GIS와 RS를 이용한 전철역의 영향권 분석 (Analysis on Effects Area of Subway Station Using GIS and RS)

  • 양인태;김재철;천기선;박재국
    • 산업기술연구
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    • 제23권A호
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    • pp.93-100
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    • 2003
  • Population concentration phenomenon of city needs large-scale ride, and It is important elements that develop the circumference but, it is difficult to evaluate effects that ride gets land utilization change. Therefore, this research evaluates change and effect of land utilization as political to subway station that is main ride of Seoul City, and chose standard and position for right place arrangement of electric railway station. Research contents analyzed subway station effect area interior and external land utilization change taking advantage of GIS's buffer function and RS's classification technique, and decide precedence at subway station establishment and chose position of subway station for effect area outside area.

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LANDSAT영상을 이용한 여름철 청주지역의 토지피복과 지표면온도와의 관계 분석 (Analysis of the Relationship Between Land Cover and Land Surface Temperature at Cheongju Region Using Landsat Images in Summer Day)

  • 박종화;김진수;나상일
    • 한국농공학회논문집
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    • 제48권5호
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    • pp.39-48
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    • 2006
  • The objective of this research was to find an indirect method to estimate land surface temperature (LST) efficiently, using Landsat images. Agricultural fields including paddy fields have long been known to have multi-functions beneficial to the environment and ecology of the urban surrounding areas. Among these functions, the ambient temperature cooling (ATC) effect is widely acknowledged. However, quantitative and regional assessment of such effect has not been performed. Thermal remote sensing has been used over urban areas to assess the ATC effect, Thermal Island Effect(TIE), and as input for models of urban surface atmosphere exchange. Here, we review the use of thermal remote sensing in the study of paddy fields and urban climates, focusing primarily on the ATC effect. Landsat satellite images were used to determine the surface temperatures of different land cover types of a $44km^{2}$ study area in Cheongiu, Korea. The results show that the ATC is a function of paddy area percentage in Landsat pixels. Landsat pixels with higher paddy area percentage have much more cooling effect. The use of satellite data may contribute to a globally consistent method for analysis of ATC effect.

공원녹지의 토지피복비율과 기온간의 요인분석 (Factor Analysis of the Relation Between Land Cover Ratio of Green Spaces and Temperature)

  • 윤용한;박봉주;김원태;박선영
    • 한국환경과학회지
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    • 제17권5호
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    • pp.485-491
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    • 2008
  • The present study examined the relation between land cover condition and temperature in various types of urban green spaces. The diagram of temperature distribution showed that high-temperature zones are formed around paved areas, and low temperature zone around planted areas and grassy areas. Even in planted areas where low-temperature zones were formed, temperature was different according to hierarchical structure. That is, temperature was relatively low in areas covered with arbor + sub-arbor. With regard to land cover ratio, the increase of planted areas and grassy areas had an effect on the fall of temperature and the effect was higher in order of planted areas and grassy areas. On the contrary, paved areas and bare areas had an effect on the rise of temperature. According to the results of factor analysis, in case of the highest temperature, planted area and grassy area were put together into a factor lowering temperature, paved area and temperature into a factor raising temperature, and bare area alone into a factor of low significance. In case of the lowest temperature, grassy area and bare area were put together into a factor, and the validity of the factor analysis was proved by the analysis of urban heat islands. An increase in the number of trees by height was effective in lowering temperature, and the effect was high in order to arbor and sub-arbor, and the source of coldness in planted area was tall trees.

대학이 지역발전에 미치는 영향 -천안시를 중심으로- (An Analysis on the Effect of the University in Area Development)

  • 박종관
    • 한국콘텐츠학회논문지
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    • 제11권6호
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    • pp.360-371
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    • 2011
  • 이 연구는 천안지역을 대상으로 대학이 지역발전에 미치는 영향을 다루었다. 본 연구는 문헌조사와 실증분석을 병행하였다. 설문지는 유효한 133부만을 SPSS 15.0버전으로 빈도분석을 실시하였다. 대학이 지역사회에 미치는 긍정적 효과는 지역사회에 원활한 인적자본의 공급, 지역소득의 증가, 교육기회 확대로 인한 지역 이미지 개선, 각종 대학시설의 지역사회에 제공 등이 있다. 부정적 효과는 양질의 교육을 받은 지역젊은이들이 다른 지역으로 떠나면서 생기는 지역격차의 확대, 지역고유의 문화와 새로운 문화의 충돌로 인한 갈등발생이 있다. 지역발전을 위한 대학의 역할은 보조 자문 역할, 상징적 역할, 교육적 역할 등 여러 가지가 있다. 그러나 가장 중요시 되는 역할은 대학이 지역발전을 주도적으로 이끌어나가는 선도적 역할이다. 마지막으로, 지역 사회 발전을 위한 대학의 활성화 방안은 산학간 인적자원의 이동을 활성화 시켜 고급인력과 운영방식의 교류를 이루어나가는 것이다.

$\cdot$미 대학생 및 교포 대학생간의 의복태도에 관한 비교 연구 (A Study on the Comparison about Clothing Attitude among Korean-American Students and Korean Student resident in the United States)

  • 이선재
    • 한국의류학회지
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    • 제15권2호
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    • pp.173-187
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    • 1991
  • The purposes of this study were to investigate the clothing attitude of college living in different culture area and to find out the critical factors which have an effect on their attitude. Samples subjected to this study were 774 college students consisted of 368 Korean students living in Seoul, 286 American students and 120 Korean students resident in New York. Clothing attitude was Measured by questionnaires composed of four variables; Clothing Attitude, the aspect of clothing habit, self·esteem and demographic variables. The statistical data were analyzed by t-test, $x^{2}-test$, ANOVA, Duncan multiple range test, Factor analysis, multiple regression analysis. The results of the study were as follows: 1. There was significant difference in all clothing attitude variables except expression of personality and personal satisfaction according to culture area. 2. There was significant difference in factors which have an effect on clothing attitude according to culture area. 2-1) Clothing attitude of Korean students were more affected by self-esteem than that of American students and Korean students resident in N.Y. 2-2) Clothing attitude of Korean students were more affected by sex, grade, major and income than that of American students and Korean students resident in N.Y. 3. The most influential variables on clothing attitudes of college students turned out to be self-esteem and cultural area. Other variables such as sex, major and income had some effect on clothing attitude such as sex, major and income had some effect on clothing attitude. 4. There was significant difference in the aspect of clothing habit according to culture area. 4-1) There was significant difference in all aspect of clothing wearing variables according to culture area; clothing wearing motives, influence by reference group about dress, dress accord- ing to uses. 4-2) There was significant difference in all of clothing buying behavior variables according to culture area; the factor on clothing selection, the place of clothing buying.

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식생지수를 이용한 DMZ의 생태적 영향권 조사 (Ecological Effect Area Research of DMZ using NDVI)

  • 김상욱;정종철
    • 한국지리정보학회지
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    • 제5권4호
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    • pp.24-34
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    • 2002
  • 본 연구의 목적은 DMZ 지역의 개발과 보전적 전략에서 생태적 평가를 수행하는데 있다. 군사적인 이유에 의해 연구지역을 현장조사하고 이를 바탕으로 생태적인 평가를 수행하기 어렵다. 때문에 본 연구에서는 Landsat ETM+ 위성영상 자료와 수치지도의 보조 자료를 이용하여 DMZ의 생태적 평가를 수행하였다. 생태적 영향권 조사를 위해 식생지수 가운데 하나인 NDVI값을 이용하였으며, 본 연구시점의 DMZ는 DMZ 내부를 제외하고는 식생활력도가 군사적 교란, 민간인의 영농활동 등으로 매우 낮은 값으로 나타났다. 또한 DMZ을 기준으로 설정한 거리별 식생지수값의 변화는 로지스틱한 형태로 표현되지 않고 있다. 이는 서부 및 중부지역의 평야지대의 경우 개발압력이 민통선지역에까지 이르렀으며, 동부지역의 경우 정기적인 사계청소의 영향이라 판단된다.

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