• 수산경영론집
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• 제28권1호
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• pp.51-70
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• 1997

The fishing industry of Korea is now i a critical transitional stage. That is, broadly speaking, there are two dominant factors that constrain the further development of Korea fishey and effective competition in the international fishing industry. First of all, the global fishing industry has experienced many significant changes due to the execution of U.N, maritime law, the establishment of EEZ(the Exclusive Economic Zones), the increased roles of WTO(the World Trade Organization) as well as Korea being a member of OECD(the Organization for Economic Co-operation and Development). Second, the fishing industry of Korea is faced with the following domestic troubles, such as the icreasing fishing expenses, insufficient labor supply, and the collapse of traditional local co-operative organizations of fishing villages, etc. However, the demand for aquatic products of home consumers not only continues to increase but also is shifting to select more valuable species, completely ignoring the above-mentioned serious pressures incurred by the Korean fishery. To solve these problems and keep developing steadily, it is necessary for the fishing industry of Korea to adopt a more active and flexible development pattern in order to reset up the regional economic base in fishing villages nation-wide and make the exploitation of fishing resources balance. The paper gives an reconsideration to the primary alternatives facing the Korean fishery and its prospective roles in a realistic and far-sighted attitude. It may serve as an endeavour in seeking an outlet for the fishing industry of korea to advance forwardly and lastingly.

• Journal of Information Processing Systems
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• 제12권4호
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• pp.555-576
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• 2016

In the conventional clustering algorithms, an object could be assigned to only one group. However, this is sometimes not the case in reality, there are cases where the data do not belong to one group. As against, the fuzzy clustering takes into consideration the degree of fuzzy membership of each pixel relative to different classes. In order to overcome some shortcoming with traditional clustering methods, such as slow convergence and their sensitivity to initialization values, we have used the Harmony Search algorithm. It is based on the population metaheuristic algorithm, imitating the musical improvisation process. The major thrust of this algorithm lies in its ability to integrate the key components of population-based methods and local search-based methods in a simple optimization model. We propose in this paper a new unsupervised clustering method called the Fuzzy Harmony Search-Fourier Transform (FHS-FT). It is based on hybridization fuzzy clustering and the harmony search algorithm to increase its exploitation process and to further improve the generated solution, while the Fourier transform to increase the size of the image's data. The results show that the proposed method is able to provide viable solutions as compared to previous work.

• 환경영향평가
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• 제19권5호
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• pp.483-495
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• 2010

The passenger pigeon (Ectopistes migratorius) was a species of pigeon that was once the most common bird in North America. According to some ornithologists, the number of passenger pigeons is estimated as many as five to six billions at the time when the first Europeans arrived there. But this species became extinct in 1914. There were a multiplicity of causes in the extinction; first, the extension of telegraph lines and railroads into the Middle West of the USA beginning in 1850s, second, the loss of vast feeding, nesting, and roosting sites of the passenger pigeon due to the massive deforestation, third, the rapid population growth of the USA during nineteen century, fourth, the commercial exploitation of the species, and finally, the infirm and weak protective efforts. Some important lessons can be learned from the extinction of the passenger pigeon. First, it shows how much critical the public interest is for a successful conservational movement. Second, it illustrates the need for strong laws and practices in the protection of an endangered species from going extinct. Third, the fate of the passenger pigeon proves a very important principle in conservational biology. That is, for each species (bird or other animal) there is a minimum population to sustain the species. Ecologists generally believe that the extinction of the passenger pigeon was due to the loss of their numbers below the minimum owing to overexploitation.

• 수산경영론집
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• 제34권1호
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• pp.115-136
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• 2003

As of late, people who enjoy fishing as a pastime in Korea has dramatically increased on the back of the increased national income and 5-day working system being in place. In the past, people used to fish in inland waters, but fishing on the sea has also shown a steady increase. The expanded fishing community along with increasing types of fishing, however, led to destruction of ecosystem by littering the waters of both inland and sea with wastes and reckless exploitation of fish resources. Fishing activities are usually taking place in inland waters, or on the sea, which is, by definition, a common property, and side effects such as free riding and diseconomy are frequently observed occurring. In other words, everyone can use the property free of charge(except paying fishing lot), and littering the waters with pollutants and wastes stemming from fishing activities is currently rampant. In this context, this paper studies the necessity of introducing fishing license system and its feasibility in Korea from a perspective to improve the national welfare through policy measures based on 'polluter pays principle' to prevent further environmental pollution in the fishing lot and preserve fishery resources. Study shows that introduction of Recreational fishing license system is urgently needed, but it is concluded that it should take more time to implement the system so as to accomodate the differing interests of all parties involved including recreational fishing industry, while strengthening public relation activities to solicit for the people's understanding of the system to be introduced.

• Mycobiology
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• 제46권1호
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• pp.13-23
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• 2018

Depending on the mode of nutrition exploitation, major fungal guilds are distinguished as ectomycorrhizal and saprotrophic fungi. It is generally known that diverse environmental factors influence fungal communities; however, it is unclear how fungal communities respond differently to environment factors depend on fungal guilds. In this study, we investigated basidiomycetes communities associated with Quercus mongolica using 454 pyrosequencing. We attempted to detect guild pattern (ectomycorrhizal or saprotrophic fungal communities) by comparing the influence of geography and source (root and surrounding soil). A total of 515 mOTUs were detected from root (321) and soil (394) of Q. mongolica at three sites of Mt. Jeombong in Inje County. We found that patterns of diversity and community structure were different depending on the guilds. In terms of alpha diversity, only ectomycorrhizal fungi showed significant differences between sources. In terms of community structure, however, geography significantly influenced the ectomycorrhizal community, while source appeared to have a greater influence on the saprotrophic community. Therefore, a guildbased view will help to elucidates novel features of the relationship between environmental factors and fungal communities.

• 한국실내디자인학회논문집
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• 제29호
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• pp.195-202
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• 2001

The stage facilities in the western culture originates in the scientifically planned Open Air Theater built in BC 3C and magnificent theaters built in the era of Rome. These buildings are the remains that reveal popularization of the play. Furthermore, the facilities continued to flourish in the medieval to the Industrial Revolution as stage art actualizing designers' imagination. Diverse systems developed in industrial technology have been transferred to the stage, and the balance between industrial and cultural art has been endeavored to be achieved. The conversion methods of the stage has been developing in various forms. Domestic stage setting arrangement techniques and material exploitation have also been developing. Therefore, in reality, it is very difficult to grasp the definite trend. Additionally, as for the stage system in Korea, plays are dependently directed by directors and stage artists. It is concluded that the current state should be understood based on actual examples to meet solve these problems. The purpose of the study is to provide basic data for stage facilities planning. To do this, how the stage system of large performance halls can be used in accordance with performance condition of the grounds in Korea and frequent scene changes is given a special attention. With this background, the surroundings of the stage and conversion system are examined.

• Structural Engineering and Mechanics
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• 제82권6호
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• pp.713-724
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• 2022

Effects of coal tensile strength and plow configuration on the coal fragmentation process was modeled by two-dimensional particles flow code (PFC2D). Three tensile strength values, 0.5, 1,5 and 3.5 MPa were considered in this numerical study. The cutters of plow penetrated in the coal for 4 mm at a rate of 0.016 m/s. According to the PFC manual, the local damping factor was 0.7. Three failure mechanism of coal during the fragmentation process by plow were modelled. The coal material beneath the cutters showed the elastic, plastic and fracturing behaviors in this analysis. In all the models, the plastic zone was fractured and some micro-cracks were induced but the elastic zone remained undamaged. It was observed that the tensile strength affected the failure mechanism of coal significantly and as it increased the extent of the fractured zone underneath the plow cutter decreased during the fragmentation process.

• 벤처창업연구
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• 제11권1호
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• pp.13-27
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• 2016

비즈니스 환경이 급변하는 현대사회에서 기업은 환경변화에 유연하게 대처할 수 있는 역량을 갖추고자 노력한다. 즉, 산업 변화에 따라 변화를 모색하지 않는 기업은 도태될 우려가 있기 때문에, 다양한 전략을 구사하여 기업의 성과를 달성하고자 한다. 또한 기업의 성과는 국가 경쟁력의 주요한 핵심 요소이며, 정부도 기업 성과 극대화를 위해 다양한 지원을 아끼지 않는다. 이에 본 연구는 혁신형 인증 보유 유무 및 보유 유형에 따라 성과 달성을 위한 기업의 전략과 정부의 정책에 차이가 있는가를 살펴보고자 한다. 기업의 전략 구성 노력을 크게 외부지식을 탐색하고 활용하는 정도로 구분하였고, 정부의 정책은 직접지원, 간접지원, 재정지원으로 나누어 살펴보았다. 기업의 성과는 혁신적인 관점의 기술성과와, 기업의 실질적인 성과인 매출액을 대리변수로 활용하여 경영성과를 분석하였다. 분석 결과, 혁신형 인증 보유 유무에 따라 성과에 영향을 미치는 변수가 상이한 것으로 나타났다. 또한 혁신형 인증 유형별로 기업의 성과에 영향을 미치는 변수가 상이한 것으로 나타났다. 기업은 환경에 따라 기술의 발달 및 변화속도가 달라지기 때문에 발생하는 문제들을 매번 자체적으로 해결하는데 한계가 있다. 이에 기업은 효과적으로 외부지식을 탐색 및 활용 할 수 있어야 하며, 장기적 관점에서 내부 지식뿐만 아니라 외부 지식 기반 및 수준도 고려해야 한다는 시사점을 얻을 수 있었다. 따라서 기업들이 처한 상황 및 혁신형 인증 유형별로 차별화된 행동 전략을 고려해야 기업의 성과를 달성할 수 있음을 알 수 있었다.

• 벤처창업연구
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• 제12권3호
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• pp.163-176
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• 2017

4차 산업혁명과 창조경제라는 화두가 지배하고 있는 오늘날의 경영환경하에서 중소기업들은 지속가능한 성장을 위하여 혁신역량 확보에 많은 노력을 기울이고 있다. 특히 혁신역량 혹은 혁신성과를 창출하기 위하여 중소기업들은 조직의 양면적 특징, 즉 탐색과 활용이라는 양면성에 관심을 기울이고 있다. 이에 본 연구에서는 국내 중소기업들을 대상으로 혁신성과를 창출할 수 있는 핵심 요소로서 조직의 맥락적 양면성을 고찰하고 이들 양면성을 자극하고 촉진하는 요인과 혁신성과간의 관계를 발견하기 위하여 실증분석을 실시하였다. 이를 위해 조직내 맥락적 양면성의 선행요인으로 대표적 경영혁신 기법이자 전사적 차원의 혁신 활동인 품질관리관행을 채택하였으며, 양면성의 결과변수로 혁신성과(급진적/점진적 제품혁신)을 설정하여, 일련의 회귀분석을 실시하였다. 연구 결과, 품질관리관행인 품질분임조활동은 조직의 두 가지 맥락적 양면성 즉, 탐색과 활용 모두에 정(+)의 영향을 미치는 것으로 나타났으며, 맥락적 양면성은 혁신성과에도 정(+)의 영향을 미치는 것으로 나타났다. 그리고 맥락적 양면성은 품질분임조활동과 혁신성과간의 관계를 완전매개하고 있는 것으로 나타났다. 이상의 연구결과는 중소기업의 혁신성과를 달성하기 위해서는 맥락적 양면성의 확보가 필수적이며, 맥락적 양면성을 촉진 또는 자극하기 위해서는 품질분임조와 같은 품질관리활동이 반드시 선행되어야 함을 시사하고 있다.

• 수산경영론집
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• 제36권3호
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• pp.119-139
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• 2005

The purpose of this paper is to provide information that will help both fishing industry and fisheries authority understand the principals of individual transferable quota(ITQ) fishery management. Theoretical frameworks and primary features of ITQ fishery managemenet are the assignment of exclusive property rights for harvest of common - property fisheries resources. An ITQ fishery management is fundamentally different from the conventional fishery management and it gives an individual fisherman the right to catch a specified quantity of fish, his quota. With ITQ, fisherman's quotas are transferable, in whole or in part. An ITQ is a property with certain rights of use, namely, the right to catch a given quantity and species of fish in a specific location during a specific period of time. The right is exclusive in the sense that no one else has the right to use the quota without the owner's permission. The property may be assigned, traded, and exchanged; i.e., the owner has the right to transfer an ownership to others. An ITQ fishery management leads to both economic efficiency and resource conservation. Motivations to overexploit stocks and to overcapitalize should be lessened because fishermen no longer have to compete for limited resources. There are significant positive net benefits and advantages with ITQ fishery management than without. The potential benefits and advantages of ITQ fishery management include increased profits, economic stability, improved product quality, safer working conditions, less gear conflict, elimination of the race - to - fish phenomenon, less by - catch, less gear loss, improved investment climate, mitigation of market gluts, waste reduction, addition to fisherman's wealth, and compensation for fisherman exiting the fishery. As an independent observe to Red Crab Trap Fishery some of the benefits, problems, and effects, an ITQ fishery management in Red Crab Trap Fishery is still far from to be implemented. Many different and difficult aspects (biological, socioeconomics, administrative) are involved considering the implementation of ITQ fishery management in Red Crab Trap Fishery. Among other fishery management tools, the implementation of ITQ fishery management in Red Crab Trap Fishery is considered to be the best in achieving the better conservation of fisheries resources and their more economic and rational exploitation. Korean fisheries authority should pay great attention to the experience of the economic effects of the ITQ fishery management in Red Crab Trap Fishery in the hope of being able to implement at least some of those experiences into the Korean fishery management.