• 경영과학
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• 제26권1호
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• pp.7-20
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• 2009

The framework of "blue ocean strategy (Kim and Mauborgne, 2005)" applies to not only business firm level but also region or regional industry level. The paper suggests an approach of survey-based blue ocean strategy formulation. The result from survey on customer group and non-customer group gives information on positions of value curves for regions on strategy canvas and hints on how to reposition the focal region's value curve for both increases in value for customers and decreases in cost for local government, i.e., value innovation. In the context of rafting industry in Korea, this study shows the process how blue ocean strategy can be formulated with results from the survey on customers and business people in rafting industry. Relative positions of value curves on strategy canvas and importance scores for strategy elements provides the local government in region A with implications on which elements to raise or to reduce to create "blue ocean" in rafting industry under fierce inter-region competition.

• 자원ㆍ환경경제연구
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• 제16권3호
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• pp.427-449
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• 2007

본고는 수자원이 가지는 휴양가치를 분석하되 한탄강에서 시행되는 래프팅을 분석사례로 하여 수자원의 양, 즉 수량과 수질이 각각 래프탱이라는 대표적 수상 휴양행위로 인한 편익에 어떤 영향을 주는지를 평가하고자 한다. 본고는 선행연구들과는 달리 실제로 수자원을 휴양목적으로 활용하는 행위를 면밀히 검토하여 이를 반영하는 수자원 특성별 그리고 관리방안별 가치를 추정하며, 분석모형으로는 통상적인 조건부로짓모형은 물론 대안선택에 있어 보다 신축성을 부여하는 다항프로벗모형 (multinomial probit model)도 함께 사용한다. 본고는 대안선택행위에 대한 분석결과를 이용하여 수량 및 수질을 포함하는 래프팅 특성별 가치를 도출한다.

• 한국재료학회지
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• 제33권10호
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• pp.406-413
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• 2023

This study used optical and scanning electron microscopy to analyze the surface oxidation phenomenon that accompanies a γ'-precipitate free zone in a directional solidified CM247LC high temperature creep specimen. Surface oxidation occurs on nickel-based superalloy gas turbine blades due to high temperature during use. Among the superalloy components, Al and Cr are greatly affected by diffusion and movement, and Al is a major component of the surface oxidation products. This out-diffusion of Al was accompanied by γ' (Ni₃Al) deficiency in the matrix, and formed a γ'-precipitate free zone at the boundary of the surface oxide layer. Among the components of CM247LC, Cr and Al related to surface oxidation consist of 8 % and 5.6 %, respectively. When Al, the main component of the γ' precipitation phase, diffused out to the surface, a high content of Cr was observed in these PFZs. This is because the PFZ is made of a high Cr γ phase. Surface oxidation of DS CM247LC was observed in high temperature creep specimens, and γ'-rafting occurred due to stress applied to the creep specimens. However, the stress states applied to the grip and gauge length of the creep specimen were different, and accordingly, different γ'-rafting patterns were observed. Such surface oxidation and PFZ and γ'-rafting are shown to affect CM247LC creep lifetime. Mapping the microstructure and composition of major components such as Al and Cr and their role in surface oxidation, revealed in this study, will be utilized in the development of alloys to improve creep life.

• 한국수정란이식학회:학술대회논문집
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• 한국수정란이식학회 2006년도 The 6th Intermational Symposium on Developmental Biotechnology
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• pp.4-4
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• 2006

• 해양환경안전학회지
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• 제19권2호
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• pp.155-163
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• 2013

최근 일부 연구자들은 9세기 장보고 휘하의 신라인들이 항해에 나침반과 첨저선을 이용하여 동북아 해역을 자유롭게 항해하였다고 주장하고 있다. 그러나 항해에 나침반이 이용된 것은 중국이 11세기이고, 유럽이 12세기이다. 게다가 우리 선조들은 평저선을 사용하였다는 것이 학계의 중론이다. 이 논문은 중국 주산군도에서 흑산도를 잇는 동중국해 사단항로(서해남부 사단항로)의 이용 시점에 관하여 해양기상학적 관점에서 재검토해 보려는 시도이다. 이를 위해 고대 동중국해 사단항로에 관한 이제까지의 연구성과를 정리한 뒤, 동중국해의 해황(海況)을 바람과 해류, 안개를 중심으로 살펴보고, 뗏목으로 동중국해를 항해함으로써 장보고 선단이 동중국해 사단항로를 이용하였음을 입증하였다는 주장을 비판적으로 재구성해 보았다. 분석 결과 6 7월 해황은 동중국해 사단항로의 범주 항해가 가능함을 보여주고 있지만, 그것도 기상 조건이 아주 유리했을 경우에 한하여 한정적으로 가능했음을 확인하였다. 뗏목 탐사의 경우 제시된 항로도와 실제 선위간 이동경로와는 다소 상이하였고, 속력 또한 1.7 2노트 내외로 빠르게, 그것도 직선에 가깝게 이동한 것으로 분석되어 아주 이례적이었음을 확인하였다. 결론적으로 명확한 사료와 확실한 근거가 없는 한 동중국해 사단항로는 1068년 이후 주항로로 이용되었다는 설이 견지되어야함을 재확인하였다.

• 수산해양교육연구
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• 제27권2호
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• pp.556-565
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• 2015

The purpose of this study is to research on founding of the department of marine leisure industry in fisheries high school. Research methods were used a survey district, students and teachers in fisheries high school and industry human are 353 people in the target. The results of this research are as follows. First, the ratio in favor of making the marine leisure industrial department had more than 81%. The second, teachers and industry people selected core factors include oceanography, water leisure, leisure diving, commercial diving, lifeguard, rafting. Finally, subject for the department of marine leisure industry in fisheries high school are fisheries shipping industry basis, understanding of the ocean, marine leisure tourism, underwater technology, navigation, seamanship, maritime laws regulations, heat engines and aquatic organism.

• KIEAE Journal
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• 제9권5호
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• pp.77-84
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• 2009

This study was initiated by the fact that Kangwon Land and large sized resorts was failed the financial benefit to the local residents. This research analyzed the best important tourist resource among the main tourist resource by perception interviewing local residents and related professionals. This study shows that the leisure resource was most important resource field in Jeong-Seon. So more attention to the leisure resources and investment them. Among natural attraction resources 'Hwa-Ahm cave and Hwa-Ahm mineral water' is estimated to have most potential for the strategic financial support. In leisure sector 'High One resort' is judged to be more important attraction resource by professionals but a case of local residents 'Dong-gang Rafting' and 'Rail Bike' were estimated more important resources rather than 'High One resort;. Lastly, in cultural resources, although the importance is a bit behind natural attraction and leisure resources, 'Jeong-Seon 5th day market' and 'Araree village' should be the core linking other related cultural resources. In order to activate tour industry and development of Jeong-Seon area, it is necessary to find identify of regional owned attraction resources and to build tourist attraction infra structure by selecting core bases of existing major attraction points and linking other various resources to those core bases.

• 수산해양교육연구
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• 제29권2호
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• pp.526-536
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• 2017

This study intended to understand similarity of image between games and position of image attribute perceived by consumers according to the games of marine sports using MDS (Multidimensional Scaling). Through the foregoing, this study aims to provide preliminary data for establishing marketing strategies for games of marine sports by accurately understanding images of marines sports perceived by consumers. For survey targets, this study selected students of K University located in Gyeonggi-do as a population, and extracted samples using convenience sampling out of non-probability sampling methods targeting 200 students who showed intention of participation in this study, and total 188 sheets of questionnaire were used as final data excepting 12 sheets that are filled up unfaithfully or considered unreliable. For data processing, this study conducted Frequency Analysis, Descriptive Statistical Analysis, Reliability Analysis, MDS (Multidimensional Scaling) and Multiple Regression Analysis, and study results show that water ski and wakeboard(.602) have the most similar image attribute, indicating that image attributes of scuba diving and water ski(2.031) are positioned farthest with each other. As for image attribute, image attribute of water ski has appearance and progressiveness, windsurfing has an image attribute of positive, scuba diving has an image attribute of negation, and marin rafting has an image attribute of friendliness.

• ALGAE
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• 제34권2호
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• pp.91-97
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• 2019

Chilean species of marine macroalgae with amphitropical distributions oftentimes result from introductions out of the Northern Hemisphere. This possibility was investigated using haplotype data in an amphitropical red macroalgae present in Chile, Callophyllis variegata. Published sequence records from Canada and the United States were supplemented with new collections from Chile (April 2014-November 2015). Specimens of C. variegata were amplified for the 5′ end of the cytochrome c oxidase subunit I gene (COI-5P) and the full length nuclear internal transcribed spacer region. Haplotype networks and biogeographic distributions were used to infer whether C. variegata was introduced between hemispheres, and several population parameters were estimated using IMa2 analyses. C. variegata displayed a natural amphitropical distribution, with an isolation time of approximately 938 ka between hemispheres. It is hypothesized that contemporary populations of C. variegata were established from a refugial population during the late Pleistocene, and may have crossed the tropics via rafting on buoyant species of kelp or along deep-water refugia coincident with global cooling, representing a rare case of a non-human mediated amphitropical distribution.

• 원예과학기술지
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• 제32권5호
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• pp.614-622
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• 2014

Melons (Cucumis melo L.) are generally grafted onto Cucurbita rootstocks to manage soilborne pathogens such as Monosporascus root rot and v ine decline (MRR/VD) and Fusarium wilt. However, g rafting onto Cucurbita rootstocks reportedly results in the reduction of fruit quality. In this study, the resistance to MRR/VD, yield, and fruit quality of melons grafted onto melon rootstocks were evaluated under greenhouse conditions. Eight melon rootstocks (R1 to R8) were used and the inodorus melon 'Homerunstar' was used as scion. Melon rootstocks R1 to R6 were selected based on resistance to MRR/VD under greenhouse conditions. Non-grafted 'Homerunstar' and plants grafted onto squash interspecific hybrid 'Shintozwa' rootstock (Cucurbita maxima D. ${\times}$ C. moschata D.) served as controls. Grafted melons were cultivated in the greenhouse infested with Monosporascus cannonballus during two growing seasons (summer and autumn). The responses to MRR/VD, yield, and fruit quality differed depending on the rootstocks and growing season. The melons grafted onto 'Shintozwa' exhibited less severe disease symptoms and higher survival rates than non-grafted melons in both seasons. While the melon rootstocks in the summer cultivation did not increase the survival rate compared to non-grafted melons, the melon rootstocks R1 and R2 in the autumn cultivation led to higher survival rates. The melon rootstocks resistant to MRR/VD increased the percentage of marketable fruits and marketable yields. Grafting onto the melon rootstocks caused little or no reduction of fruit quality such as low calcium content, fruit softening, and vitrescence, especially in lower-temperature autumn season. Accordingly, these results suggest that grafting onto the melon rootstocks may increase the tolerance to MRR/VD and the marketable yield without a reduction of fruit quality.