• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.3
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• pp.31-36
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• 2020

The LTE-R system is a system consisting of a packet network that provides all IP-based services. Continuous failures related to the platform safety gate and subsequent safety accidents related to passengers and safety gate workers continue. The secondary damage caused by the failure of the platform safety door and the related human life damage have emerged as a major social issue.. By linking the beacon system to the Long Term Evoluton-Railway (LTE-R) network, an LTE-based railway wireless network currently in operation or being installed, it precisely locates trains and provides standardized fault alerts to train crews. When entering into the station, ultimately we will decelerate the train and reduce the accidents of metropolitabn railroad traffic by securing safe driving.

• The Journal of Fisheries Business Administration
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• v.48 no.2
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• pp.67-82
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• 2017

The study intends to examine the effects of the fishing license system on fisheries resources in order to reduce the adverse effects of recreational fishing, such as fishery resource reduction and environmental pollution. In doing so, the research question of the study is to determine what factors influence anglers' willingness to support fishing licenses. Based on the extended theory of planned behavior, we further included explanatory variables such as recreation specialization and motivations besides anglers' attitudes, norms and self-efficacy towards the environment and proposed six research hypotheses. The data were collected through on-site and online surveys in Gwangju and Cheonnam province and a total of 337 effective questionnaires were collected for data analysis. Three different binary logit models were employed with the dependent variable of anglers'willingness to support fishing licenses to assess the effects of explanatory variables. Study results show that social norms, the level of recreation specialization, motivation factors related to environmental experiences positively affected anglers'willingness to support fishing licenses. However, anglers'consumptive orientation attitudes such as catching big fish, motivation factors related to activity general experience preferences and previous fishing experience had negative effects on the dependent variables. Study results indicate that public outreach and education programs are essential to successfully introduce the fishing license system. Managerial and policy-related implications are further discussed to make recreational fishing a more environment-friendly recreational activity. This study investigated the effects of diverse variables derived from anglers' social-psychological characteristics on their support for fishing licenses and suggest diverse policy-related and managerial implications.

• Fashion & Textile Research Journal
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• v.8 no.5
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• pp.496-504
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• 2006

This study was conducted for silver generation women, age 60 and more. Questionnaire was answered by the total 291 of women. Frequency analysis, t-test, ANOVA and Duncon-Test have been completed by using SPSS 12.0 tool. The conclusion of the study is below. First, silver generation women live in Seoul and South Gyeongsang Province. The data shows huge academic background gab among regions. Second, the following is the preferences found by 15 stimulants which expert groups identified based on demography. People in South Gyeongsang Province like default, tailored, three-button jacket more. People in South Gyeongsang Province prefer to Chanel jackets and people in their 70s prefer to it than in 60s, stand collar casual jacket for color and material, and the less they are educated, the more they like the jackets. And those who have less personal expenses tend to prefer to it. South Gyeongsang Province shows preference for semi polo-neck sweater. Highly educated did not show any preference for it. Women in their 70s tend to like blouses with round neckline. The data shows there is significant difference of preference for design, color and material for coloration vest between education levels. The less educated tends to like it. People in South Gyeongsang Province and those who live with their children are in favor with half sleeve jackets for colors and materials. All in Seoul and South Gyeongsang Province do not like three-quarter-length sleeve jackets because those jacket have wide and deep plunging neckline. The study showed people living in Seoul, in their 60s, highly-educated tend to favor polo shirts significantly. Seoul favor basic straight pants and people with any level of education excluding elementary prefer to it. The highly-educated and those who have a bigger allowance tend not to prefer to baggy trousers. In conclusion, Fifteen incentives (clothing design) for semi polo-neck sweaters, polo t-shirts, basic straight pants are more proper to silver generation women in their 60s, living in Seoul. Other designs are desirably applicable to customers on a national scale at middle prices.

• Journal of Korean Society of Transportation
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• v.20 no.4
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• pp.213-222
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• 2002

교통사고가 중요한 사회 문제로 대두되어 정부는 교통안전대책의 실질적인 추진 방안으로 "교통사고 잦은 곳"과 "위험도로" 개선사업을 제시·시행하고 있다. 이에 "교통사고 잦은 곳" 개선사업은 추진현황에 따라 각 년도별 기본 개선계획의 평가 및 경제적 타당성에 대한 효과분석이 이루어지고 있다. "위험도로"'의 경우 모든 사업을 건설교통부 산하 국도유지사무소에서 진행을 하고 있으나, 광범위한 사업으로 인한 업무과중 및 개선사업비 조달 등의 문제로 개선된 현황의 체계적인 효과분석이 이루어지지 못하고 있는 실정이다. 이에 따라 본 연구에서는 "위험도로" 개선사업에 대한 효과분석을 수행하여 보다 비용-효율적인 개선사업이 될 수 있는 기반을 마련하고자 한다. 이를 위해 전체 위험도로 구간 중에서 '광주국도유지사무소' 및 '순천국도유지사무소' 관할 구역 내의 "위험도로"로 선정(1995년)된 도로구간 중 1999년 이전에 도로개선공사가 완료된 후 현재 교통소통이 원활하게 진행되는 18개 도로구간을 연구 대상으로 선택하였다. 선택되어진 18개 구간에 대한 도로개선공사 전후의 교통사고건수 및 교통사고율을 효과척도로 삼고 각 사고에 대한 소요비용을 기준으로 경제성 평가를 실시하였다. 이를 근거로 "위험도로" 개선사업에 대한 타당성조사 및 효과분석을 실시한 결과 "위험도로" 개선사업의 타당성이 입증되었다. 연구 분석결과가 전라도 권역의 사업을 중심으로 진행되어져 전국적인 개선사업에 대한 대표성을 가지고 있다고 볼 수는 없으나, 체계적인 분석을 통한 개선사업의 효과를 구체화 할 수 있는 대안을 제시할 수 있을 것으로 사료된다. 더불어 공사 완료된 도로구간에 대한 상세한 공사비 내역과 다수의 개선방안별 자료가 갖추어지면 위험도로의 사고율과 개선방안별 상관관계를 관련 비용을 중심으로 도출함으로서 비용-효율적인 개선 방안을 제시할 수 있을 것이다. 또한 비용-효율적인 개선 방안을 기반으로 한 각각의 사업 투자우선 순위 결정방안에 관한 지속적 인 연구가 요망된다.

• Journal of Korean Society for Geospatial Information Science
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• v.20 no.1
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• pp.83-91
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• 2012

Crown density, which is defined as the proportion of the forest floor concealed by tree crown, is important and useful information in various fields. Previous methods of measuring crown density have estimated crown density by interpreting aerial photographs or through a ground survey. These are time-consuming, labor-intensive, expensive and inconsistent approaches, as they involve a great deal of subjectivity and rely on the experience of the interpreter. In this study, the crown density of a forest in Korea was estimated using KOMPSAT-2 high-resolution satellite images. Using the image segmentation technique and stand information of the digital forest map, the forest area was divided into zones. The crown density for each segment was determined using the discriminant analysis method and the forest ratio method. The results showed that the accuracy of the discriminant analysis method was about 60%, while the accuracy of the forest ratio method was about 85%. The probability of extraction of candidate to update was verified by comparing the result with the digital forest map.

• Journal of the Korean Society of Costume
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• v.54 no.4
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• pp.1-14
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• 2004

This study suggests the popular culture theory as a basic framework to find out the characteristics of contemporary fashion show meeting the popular culture, and describes that the show is the popular culture of this generation. The culture is the way of our life unifying the world at common area of human being. The popular culture is to subdivide it into the public culture that shares aesthetic taste, and to borrow each other and develop it mutually because of the collapse of dichotomous boundary with high quality culture, and to represent the people’s thought and behaviour expanding their areas. The author has examined the characteristics of popular culture of modern fashion show by four collections, that is, commercialism, mass media, political relationship and interaction, etc： Firstly, at the commercialism, the fashion show combines it with other genre organically to do mass production and sales and produces cultural consumption goods supplying a lot of sight-seeing. Secondly, at the mass media, the image of contemporary fashion show has been spread out with mass media such as fashion magazines, cable TV and Internet beyond time and space to produce advertisement effects and makes new fashion and bring democratic culture. Thirdly, at political relationship, the fashion in its peak can make a big stream of wealth, so that it plays important roles under governmental regulations in this era and governments make efforts to support and develop it. Lastly, at interaction, the fashion show shares media functions to let users participate in the program and to exchange information as a feedback to influence each other.

• Journal of Plant Biotechnology
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• v.38 no.2
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• pp.117-124
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• 2011

Considering that the world population is expected to total 9 billion by 2050, it will clearly be necessary to sustain and even accelerate the rate of improvement in crop productivity. In the 21st century, we now face another, perhaps more devastating, environmental threat, namely climate change, which could cause irreversible damage to agricultural ecosystem and loss of production potential. Enhancing intrinsic yield, plant abiotic stress tolerance, and pest and pathogen resistance through agricultural biotechnology will be a critical part of feeding, clothing, and providing energy for the human population, and overcoming climate change. Development and commercialization of genetically engineered crops have significantly contributed to increase of crop yield and farmer's income, decrease of environmental impact associated with herbicide and insecticide, and to reduction of greenhouse gas emissions from this cropping area. Advances in plant genomics, proteomics and system biology have offered an unprecedented opportunities to identify genes, pathways and networks that control agricultural important traits. Because such advances will provide further details and complete understanding of interaction of plant systems and environmental variables, biotechnology is likely to be the most prominent part of the next generation of successful agricultural industry. In this article, we review the prospects for modification of agricultural target traits by genetic engineering, including enhancement of photosynthesis, abiotic stress tolerance, and pest and pathogen resistance associated with such opportunities and challenges under climate change.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.30 no.2
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• pp.163-171
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• 2012

High resolution satellite images have been used for building and road system analysis, landscape analysis, and ecological assessment for several years. However, in high resolution satellite images, shadows are necessarily cast by manmade objects such as buildings and over-pass bridges. This paper develops the shadow extraction procedures in urban area including various land-use classes, and the extracted shadow areas are evaluated by a manually digitized shadow map. For the shadow extraction, the Canny edge operator and the dilation filter are applied to make building edge buffer area. Also, the object-based segmentation was performed using Gram-Schmitt fusion image, and spectral and spatial parameters are calculated from the segmentation results. Finally, we proposed appropriate parameters and extraction rules for the shadow extraction. The accuracy of the shadow extraction results from the various assessment indices is 80% to 90%.

• Tuberculosis and Respiratory Diseases
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• v.53 no.3
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• pp.344-348
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• 2002

Acute mediastinitis is a life threatening disorder that causes severe morbidity in affected patient. We experienced a case of acute mediastinitis in a 56 year-old man as a result of swallowing a fish bone (order Perciformes, Family Pomacentridae). Conservative treatment, including starvation therapy and the injection of antibiotic drugs, were successful in treating this patient. Although the optimal treatment for acute mediastinitis remains controversial, it is important to choose the appropriate strategies when encountering cases of acute mediastinitis.

• KIEAE Journal
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• v.4 no.2
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• pp.29-36
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• 2004

Designing outdoor lighting on landmarks has been activated in Korea since 2002 World Cup. And outdoor lighting has been important method to create nighttime activities. Especially, historic buildings which are illuminated by outdoor lighting expresses cultural beauty of the heritages in the region. Therefore, this study aims to analyze the outdoor lighting effect of historic buildings with particular reference to four historic buildings - Namdaemun, Kwanghwamun, Changanmun and Paltalmun. For the purpose, luminance of outdoor lighting are measured. Outdoor lighting of the historic buildings were mainly illuminated by the floodlights. In addition, up-lighting and accent lighting were used for expressing the bracket structure. Basements and rooflines are emphasized by floodlighting, and they represented the night image of historical buildings. For the subjective evaluation on the outdoor lighting of historic buildings, outdoor lighting images of four historic buildings - Namdaemun, Kwanghwamun, Changanmun and Paltalmun were photographed. Questionnaire surveys were conducted by hundred and twenty university students of architectural department And collected papers were statistically analyzed by SPSS. Factors that shows outdoor lighting images of historical buildings are as follows; atmosphere, clearness, intimacy, modelling. On the question of general impression of outdoor lighting, Kwanghwamun has got the most satisfactory responses and the next is Changanmun and Namdaemun, Paltalmun. Major variables which related to the 'general impression' of outdoor lighting for historic buildings have been 'dignity', 'match', 'elegance', 'beauty' in the order.