• Title/Summary/Keyword: Area Effect

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

  • Hwang Jin-Wook;Lee Kwon-Hyuk;Jeong Dal-Sang;Kim Kwang-Soo
    • The Journal of Fisheries Business Administration
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    • v.36 no.1 s.67
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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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Effect of Contact Area on Friction and Wear Behavior in Atomic Force Microscope (원자 현미경을 이용한 접촉 면적에 따른 마찰 및 마멸 특성 분석)

  • Choi Dukhyun;Hwang Woonbong
    • Journal of the Korean Society for Precision Engineering
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    • v.21 no.12
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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.

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 (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))

  • Kim, So-Hee;Kim, Il
    • Journal of Fashion Business
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    • v.6 no.4
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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.

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

  • Yang, In-Tae;Kim, Jae-Cheol;Chun, Ki-Sun;Park, Jai-Kook
    • Journal of Industrial Technology
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    • v.23 no.A
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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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Analysis of the Relationship Between Land Cover and Land Surface Temperature at Cheongju Region Using Landsat Images in Summer Day (LANDSAT영상을 이용한 여름철 청주지역의 토지피복과 지표면온도와의 관계 분석)

  • Park, Jong-Hwa;Kim, Jin-Soo;Na, Sang-Il
    • Journal of The Korean Society of Agricultural Engineers
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    • v.48 no.5
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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.

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

  • Yoon, Yong-Han;Park, Bong-Ju;Kim, Won-Tae;Park, Sun-Young
    • Journal of Environmental Science International
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    • v.17 no.5
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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.

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

  • Park, Jong-Gwan
    • The Journal of the Korea Contents Association
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    • v.11 no.6
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    • pp.360-371
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    • 2011
  • This study dealt with the effect of the university in area development to Cheonan city. This study ran parallel literature investigation and actual proof investigation. Questionnaires 394 enforce frequency analysis in SPSS 15.0 versions. University positive effect on local community is smooth supply of human capital in local community, increase of regional income, improvement of area image by expanded education opportunities, supply of various university facilities in local communities etc. Contradictory effect is expansion of gap for areas that young persons in local community taken to education of good quality leave other local community, occurrence of conflict by collision of new culture and culture of area characteristic. Role of university for area development is role of help consultation, symbolic role, educational role etc. But the weighed role is leading role which university leads area development. Finally, the prompting methods of university for local community development .must accomplish interchange of operational mode with high quality human resources activating removal of manpower between arithmetic.

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

  • Lee Sun Jae
    • Journal of the Korean Society of Clothing and Textiles
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    • v.15 no.2 s.38
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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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Ecological Effect Area Research of DMZ using NDVI (식생지수를 이용한 DMZ의 생태적 영향권 조사)

  • Kim, Sang-Wook;Jeong, Jong-Chul
    • Journal of the Korean Association of Geographic Information Studies
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    • v.5 no.4
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    • pp.24-34
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    • 2002
  • The purpose of this study is to estimate the ecological effect of DMZ for development and conservation of this area. Because of the political reason, field research and estimation of the ecological effect using field data is very difficult. Then we carried out the estimation of the ecological effect using Landsat ETM+ and ancillary data of digital maps. Because of military disturbance and agricultural activity of common people, NDVI of DMZ was very low value except the interior area of DMZ. According to the distance of DMZ, the variance of NDVI didn't show the logistic curve. This result has the reason as follows. The developing force at level plane of west and middle area reached to DMZ and we could concluded in that case of east area had been effect of regular cutting for view.

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