• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.1C
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• pp.63-72
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• 2006

Due to rapid development of many cities in Korea, many public facilities are required to be built as well as complementary civil structures. Consequently, a number of tunnel constructions are currently carried out throughout the country, and many more tunnels are planned to be constructed in the near future. Tunnel excavation in a city often causes serious damage to above-ground structures and sewer system because of unexpected settlement. In order to prevent the destruction, the tunnel, which bypasses the center of a city, must be specially evaluated for its influence to other structure. In addition, since a slight disturbance of above-ground structure causes numerous public complaints and civil appeals, it must be approached with different method than the mountain tunnels. In this paper, the evaluation method using the Artificial Neural Network (ANN) has been studied. The method begins with an analysis of the minimal sectional area. If its result can be used to approximate the general influence of the whole section, the actual evaluation using ANN will take off. In addition, it also studies the construction management method which reflects the real time soil behavior and environment influence during construction using Geographic Information System (GIS).

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.7 no.2
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• pp.195-205
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• 2012

This study examines runaway youths at risk in a youths' shelter who are preparing for an independent life and both the facilitating and adverse factors to personal characteristics and independence of runaway youths at risk with the aim to grasp their recognition of independence and level of desire for it and find out necessary factors for a successful independence in multidimensional perspectives including the economic independence, educational independence, psychological independence, and social independence for their sound growth. This will provide the basis for desirable interventions for youths runaway youths at risk to prepare for an independent life. The findings of this study on the factors that affect the preparation for an independent life are as follows: First, as a result of analyzing the effect of micro-systematic factors on the preparation for an independent life, it turned out that problem-solving abilities and self-efficacy had influence on the preparation for a career Second, as a result of analyzing the effect of mesoscopic-systematic variables on the preparation for an independent life, it turned out that the preparation for a career were affected by whether to participate in independence preparation programs and institutional supports, and that career maturity of runaway youths at risk were affected only by the relationship with teachers and participation in independence preparation programs. Third, as a result of analyzing the effect of macro systematic variables on the preparation for an independent life, it turned out that the preparation for a career were affected by participation of the local community and service network, and that participation of the local community was an predictor variable that would affect a career maturity of runaway youths at risk. Fourth, as a result of analyzing ecological systematic variables that might affect the preparation for a career, it turned out that intervening variables and macro systematic variables had the most powerful influence on the preparation for a career among runaway youths at risk. It is necessary, therefore, to provide education programs organized by policies in order to develop problem-solving abilities and vocational capabilities so that runaway youths at risk, and to train and appoint more professional teachers at shelters. Programs for independence preparation need to be developed actively and practically in consideration of the characteristics of shelters, and the network with the local community for support also need to be established in utilization of the human resources and service programs of the community. With the understanding of leaving home of runaway youths at risk as the previous stage of an independence, there should be a housing support for their stable settlement in the perspective of housing welfare until become adults. In addition, there should be education specialized programs for occupation and careers to train runaway youths at risk as professionals including such areas as health, mentality, learning, and voluntary work for their sound growth.

• Journal of Korea Water Resources Association
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• v.56 no.6
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• pp.403-417
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• 2023

In this research, a methodology was developed for constructing an appropriate rainfall image database for estimating rainfall intensity based on CCTV video. The database was constructed in the Large-Scale Climate Environment Chamber of the Korea Conformity Laboratories, which can control variables with high irregularity and variability in real environments. 1,728 scenarios were designed under five different experimental conditions. 36 scenarios and a total of 97,200 frames were selected. Rain streaks were extracted using the k-nearest neighbor algorithm by calculating the difference between each image and the background. To prevent overfitting, data with pixel values greater than set threshold, compared to the average pixel value for each image, were selected. The area with maximum pixel variability was determined by shifting with every 10 pixels and set as a representative area (180×180) for the original image. After re-transforming to 120×120 size as an input data for convolutional neural networks model, image augmentation was progressed under unified shooting conditions. 92% of the data showed within the 10% absolute range of PBIAS. It is clear that the final results in this study have the potential to enhance the accuracy and efficacy of existing real-world CCTV systems with transfer learning.

• The Southeast Asian review
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• v.27 no.4
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• pp.1-40
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• 2017

This study aims to examine the electricity/energy regime of Thailand, the largest energy-hungry country in the Mekong region. This study examined how the electricity/energy regime of Thailand has been shaped and changed up to the present, not only at the national level but also at the sub-regional level covering the Mekong region. Meanwhile, according to the Paris Agreement in 2015, which will get in to effect from 2020, developing countries as well as developed countries have been given voluntary responsibilities and reduction obligations in response to global climate change. Under the post 2020 Climate Change Regime, Thailand also needs to revise its existing electricity/energy policy. We reviewed the recent energy policy of Thailand and evaluated the possibility of transition to a sustainable energy system based on Energy Trilemma's analysis framework. And we examined the roles and impacts of the Thai civil society on the national power and energy planning as well as in the future climate change policy. As a result of the analysis, it can be seen that Thailand's electricity/energy regime has grown rapidly through the support of the West countries under the Cold War era. In particular, Electricity Generating Authority of Thailand(EGAT) played the key role in Thailand's energy policy. In addition, Thailand's geopolitical location and relatively high economic level compared to neighboring countries will continue to be of importance in the future construction of power grids in the region. Meanwhile, in the frame of Energy Trilemma, Thailand has still been vulnerable to environmental sustainability. Thai NGOs have resisted to as well as collaborated with the government to influence the existing electricity/energy policy in the various dimensions but their influence has weakened considerably since the coup in 2014. In conclusion, this study suggests to cooperate with government as well as civil society for sustainable energy transformation of Thailand and Mekong region.

• Journal of Fisheries and Marine Sciences Education
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• v.7 no.1
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• pp.14-30
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• 1995

한국(韓國)의 연근해어업(沿近海漁業)은 국내외 여건의 변화로 경쟁력(競爭力)을 잃어가고 있다. 따라서 구조개선(構造改善)을 통한 활로개척의 필요성이 강하게 대두되고 있으나, 중앙정부(中央政府) 차원의 어업여건(漁業與件) 개선은 장기간이 소요될 것으로 예상된다. 따라서 지방화시대(地方化時代)를 맞이하여 수산정책(水産政策)도 지방정책(地方政策)에 의한 지역적 특성을 가진 정책으로 발전시켜나갈 필요가 있다. 여기에서는 그런 차원에서 본토(本土)와는 지리적(地理的), 사회적(社會的), 경제적(經濟的)으로 상당히 독립된 특성을 가지고 있는 제주도(濟州道)에 있어서의 연근해어업(沿近海漁業)에 관한 각종 자료를 이용하여 어업의 현황을 분석하고, 나아가 생산성(生産性)을 보다 향상시킬 수 있는 어업구조(漁業構造)의 개선방향(改善方向)에 관하여 연구하였다. 그 연구결과(硏究結果)는 다음과 같다. 1. 제주도(濟州道) 연근해어업(沿近海漁業)의 실태(實態) 1) 어업인구(漁業人口)는 계속 감소하고 있으며 부녀자(婦女子) 비율이 뚜렷하게 높다. 2) 어선세력(漁船勢力)은 10톤이하의 소형선(小型船)이 꾸준히 증가되고 있으며, 10~50톤급의 증가률(增加率)도 매우 높다. 3) 어항(漁港)은 107개가 있으나 그중 80%는 비법정(非法定)의 소규모(小規模) 어항(漁港)이었다. 4) 어선어업(漁船漁業)은 연승(延繩) 유자망(流刺網) 채낚기 분기초망어업(焚寄抄網漁業) 등을 중심으로 이루어지고 있다. 5) 생산물(生産物)의 종류는 어류(魚類)가 주축을 이루고 있고, 대부분 고급(高級) 어종(魚種)이며, 가격은 상당히 높다. 6) 어선어업(漁船漁業)의 한어기(閑漁期)에 관광산업(觀光産業)과 연계하여 운영하고 있는 유어어업(遊漁漁業)은 상당히 발전할 소지를 가지 고 있다. 2. 문제점(問題點) 1) 어업인구(漁業人口)는 감소하는 반면 부녀자(婦女子)의 참여율은 높아 어선어업(漁船漁業)에 종사할 인력의 수급이 어려우며, 이것이 조업규모(操業規模)를 지속적으로 확대하지 못하는 요인이 되고 있다. 2) 어항시설(漁港施設)이 미비하여 어선어업(漁船漁業)의 규모를 확대시키기가 곤란하다. 3) 연근해어업(沿近海漁業) 어획물(漁獲物)의 판매를 위한 제도 및 시설이 소비환경(消費環境) 및 기호변화(嗜好變化)에 적절히 대응하지 못하고 있다. 4) 유어어선(遊漁漁船)의 운영기반(運營基盤)이 취약하여 활성화되지 못하고 있다. 5) 어업의 경쟁력 확보를 위한 기술교육(技術敎育) 및 연구(硏究) 지도체제(指導體制)가 취약하다. 3. 구조개선(構造改善)의 방향(方向) 1) 어업인력(漁業人力)의 안정적인 수급(需給)을 위하여 어민(漁民)의 정주환경(定住環境)을 개선하고, 어민후계자(漁民後繼者) 육성사업(育成事業)의 자금지원 수준을 향상시켜야 하며, 수산고등학교(水産高等學校) 졸업자(卒業者)를 수산계대학(水産系大學)에 일정 비율 정원외(定員外) 특예입학(特例入學) 시킴으로써 기술(技術)의 고도화(高度化)와 어촌 정착 동기를 높여 주어야 한다. 2) 어업인력(漁業人力) 감소에 대비하여 어선의 장비를 현대화, 생력화(省力化)하여 적은 인력으로도 운영이 가능하도록 유도하여야 한다. 3) 어업의 경쟁력 확보를 위해 어항시설(漁港施設)을 확충하고, 소비자(消費者)의 기호변화(嗜好變化)에 대응하여 위탁판매(委託販賣) 장소를 중심으로 종합어시장(綜合魚市場)을 개설해야 하며, 이와는 별도로 활어위판장(活魚委販場)을 시설하여 어획물(漁獲物) 부가가치제고(附加價値提高) 및 유통개선(流通改善)을 이루어야 할 것이다. 4) 유어어선(遊漁漁船)의 운영도 편의시설(便宜施設)을 확충하고 인공어장(人工漁場)의 조성을 추진하여 안정적인 부업으로 정착될 수 있도록 하는 노력이 필요하다. 5) 연구(硏究) 지도(指導)의 강화를 위하여 제주도(濟州道)에 소재하고 있는 연구(硏究) 지도기관(指導機關)을 적극적으로 활용함은 물론, 필요하다면 기관을 개편 증설하고, 어업인력(漁業人力)의 질적 향상을 위한 어민교육원(漁民敎育院)의 설립도 검토해 볼 필요가 있다.

• Korean Security Journal
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• no.51
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• pp.153-170
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• 2017

The purpose of this study is to rediscover the operation of anti-terrorism system focusing on the system approach and crisis management approach for counter terrorism in Korea. According to the results of this study, it is required to establish a link between open systems and integrative system focusing on functional linkage of counter-terrorism systems, and cooperative measures with private sectors in the dimension of governance activation. Further, it is necessary to prepare legal foundations for the cooperation with private sectors and then promote open consciousness transformation through the partnership with private security for anti-terrorism activities. In addition, in its preventive stage, it is required to prepare legal systems related to biochemical terrorism for stronger regulations through crisis-managerial approach. Next, in its preparatory stage, it is necessary to prepare education and enact named Terror Prevention Day for increasing terror safety consciousness, and then extend citizen reporting reward systems to enable citizens to participate and become interested voluntarily in terror prevention. Also, it is essential to establish the substantial training system for preparing for terror occurrence. Moreover, in its response stage, it is urgent to construct networks between related institutions to manage field and spot responses with integrative management systems through information sharing. Furthermore, in its restoration stage, it is indispensible to prepare long-term management systems for injured persons and families of the deceased from terror incidents.

• Journal of Energy Engineering
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• v.24 no.4
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• pp.192-199
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• 2015

Under the economic banner of "self-reliance," North Korea has focused on hydro and thermal power as its main energy supply sources. However, in the face of extreme energy penury caused by machinery and material supply instability in the wake of the collapse of the former communist block as well as equipment aging and deterioration due to floods and other disasters, North Korea and international aid organizations are increasingly turning their attention toward energy source diversification. In particular, renewable energy is recognized as the best strategic energy source for North Korea and it is a decentralized energy option that is suitable in light of North Korea's power distribution networks and its pursuit of self-reliance. Biogas can contribute to improving the human rights situation of North Koreans in conjunction with an increase in food production. For this reason, renewable energy is the most promising option for an energy source that is likely to secure humanitarian aid from international organizations such as the Food and Agricultural Organization (FAO) and the World Food Programme (WFP). However, the implementation of such humanitarian aid has been hampered by rising concerns about the diversion of provided energy materials for military purposes and the disguised introduction of dual use items strategic materials as well as UN Security Council resolutions and sanctions of the international community against North Korea's military provocation, including nuclear tests and missile launches. This paper explores the possibility of solving this dilemma and proceeding with the humanitarian aid to North Korea by evaluating the potential for sanction and the risk of diversion of the possible products for biogas-related aid on the basis of the list of UN-sanctioned items.

• Journal of Convergence for Information Technology
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• v.12 no.3
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• pp.85-107
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• 2022

This study is to analyze the induced effect, network connectivity, and network visualization of the water transportation industry on the overall economy in relation to all industries. For this, various inducement coefficients of the water transportation industry are analyzed using industry linkage analysis and unit structure matrix, and network visualization analysis is performed using network connectivity and NetDraw using Ucinet 6 that utilizes unit structure matrix and inverse matrix function. As a result of the study, analysis results of input coefficient, production inducement coefficient, value-added inducement coefficient, and inter-industry chain effect were presented as various inducement coefficients in the water transportation industry. content was presented. Through this study, the current position and status of the water transportation industry and its relationship with all industries were confirmed, and the strategic relationship with which industries it should be presented was presented. In the future, it is necessary to further analyze the current status and trends of various induced effects, connectivity (centrality), and network visualization analysis using industry-related analysis published since the 2000s.

• Journal of Distribution Science
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• v.7 no.4
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• pp.47-56
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• 2009

The purpose of this study is to present an alternative improving the efficient and reasonable of the physical distribution system management is influenced by many factors. Therefore, the study depends on the documentary method and survey method to achieve the purpose of this study. The major components of a physical distribution system are refers to as elements, include warehouse·storage system, transportation system, inventory system, physical distribution information system. The factors used in this study are ① factor of product(quality·A/S·added value of product·adaption of product·technical competitive power to other enterprises), ② factor of market(market channel·kinds of customer·physical distribution share), ③ factor of warehouse·storage(warehouse design·size·direction·storage ability·warehouse quality), ④ factor of transportation(promptness·reliability·responsibility·kinds of transportation·cooperation united transportation system·national transportation network), ⑤ factor of packaging (packaging design·material·educating program·pollution degree measure program), ⑥ factor of inventory(ordinary inventory criterion·consistence for inventories record), ⑦ factor of unloaded(unloaded machine·having machine ratio), ⑧ factor of information system (physical distribution quantity analysis·usable computer part), ⑨ factor of physical distribution cost(sales ratio to product) ⑩ factor of physical distribution system(physical distribution center etc). The implication of this study can be summarized as follows: ① In firms that have not adopted a systems integrative approach, physical distribution is a fragmented and often uncoordinated set of activities spread throughout various functions with function having its own set of priorities and measurements. ② The physical distribution is recognized as more an important strategic factor than a simple cost reduction factor, ③ It can be used a strategic competition tool to enterprise.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.17 no.6
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• pp.89-104
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• 2022

Entrepreneurship by seniors who have accumulated skills and expertise in the industrial field is very important from a social point of view. This study aimed at seniors to find out the major start-up capabilities of seniors in an economic situation where instability factors and uncertainties are amplified due to the social structure of jobs that has changed due to COVID-19 during the 4th industrial revolution and the rapidly progressing high interest rates and global supply chain problems. The purpose of this study was to empirically verify how variables affect entrepreneurial intention. In addition, from the perspective of mindset, which is the individual psychological characteristic of pre-entrepreneurs, we tried to empirically verify whether growth mindset and fixed mindset have a significant effect on senior entrepreneurship intention. The psychological characteristics of founders were approached from the perspective of mindset, and an attempt was made to apply them to the field of entrepreneurship and to obtain practical implications. This study empirically analyzed the effects of growth mindset, fixed mindset, technical competency, network competency, and funding competency, which are components of mindset, on senior entrepreneurial intention, and verified the mediating effect of entrepreneurial efficacy. As a result of the empirical analysis, it was verified that growth mindset and technological competency had a positive (+) effect on entrepreneurial intention. In addition, it was verified that the mediating effect of entrepreneurial efficacy was significant in the influence of growth mindset and technological competency on entrepreneurial intention, and it was verified that growth mindset and technological competency are important variables in senior entrepreneurship. The study results provide the following policy implications. In order to activate senior entrepreneurship, first, to maximize the effect of founder education, programs such as customized entrepreneurship education that match the growth mindset characteristics, which are the psychological characteristics of founders, are needed. Second, it is required to expand the base of technology startups by expanding government support, such as expanding low-interest policy financing, for senior startups with technological capabilities and expertise. Third, it is necessary to provide institutional support for starting a business, such as providing a start-up program even before retirement, so that the expertise and technology accumulated by seniors can be linked to start-ups even after retirement.