• Culinary science and hospitality research
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• 제13권3호
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• pp.137-147
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• 2007

This study aims to provide the preliminary information for developing a local marine product brand of Busan by investigating consumers' preference and behavior when they choose marine products. The results of the study confirm the importance of branding local marine products. Subjects think a brand of marine products plays an important role in their choice of marine products and has positive relationships with credibility, taste, price premium of products. The results also show that consumers' satisfaction with a marine product brand can be significantly influenced by its taste, package design, and price. When asked about developing a new Busan marine product brand, more than 80% of subjects answer that they are likely to purchase its products and even more respondents think developing a brand has a positive impact on the economy of Busan area.

• Proceedings of the Korean Vacuum Society Conference
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• 한국진공학회 2014년도 제46회 동계 정기학술대회 초록집
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• pp.375-375
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• 2014

Layered semiconductor materials can be a promising candidate for large-area thin film transistors (TFTs) due to their relatively high mobility, low-power switching, mechanically flexibility, optically transparency, and amenability to a low-cost, large-area growth technique like thermal chemical vapor deposition (CVD). Unlike 2D graphene, series of transition metal dichalcogenides (TMDCs), $MX_2$ (M=Ta, Mo, W, X=S, Se, Te), have a finite bandgap (1~2 eV), which makes them highly attractive for electronics switching devices. Recently, 2D $MoS_2$ materials can be expected as next generation high-mobility thin-film transistors for OLED and LCD backplane. In this paper, we investigate in detail the electrical characteristics of 2D layered $MoS_2$ local bottom-gated transistor with the same device structure of the conventional thin film transistor, and expect the feasibility of display application.

• Proceedings of the Korea Technology Innovation Society Conference
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• 한국기술혁신학회 2000년도 추계 학술대회(The 2000 Autumn Conference of korea Technology Inovation Society)(한국기술혁신학회)
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• pp.45-67
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• 2000

Broadband access technologies plays an important role in the national information infrastructure. In the evolution path of the information infrastructure, the relative economics of alternative access technology is the most critical determining factor. In this paper, we discuss the economics of local loop access technologies of existing technologies, such as, ADSL, HFC, and new PLC. To do this, we suggest appropriate configuration of access network system and its associated numerical equations. To modelize access network system and drive the numerical equations, we consider the DS (Double Star) and the T&B (Tree ＆ Brench) architecture and analyse the adequate block diagram of each access system for each technology We introduce the density of subscriber as a key variable and the equation of allocating optimal number of cell in a service area. We analyze the relative economics of local loop architecture in two different situations, that is, urban and rural. From the empirical implementation, we found that for the case of urban area, where the cost of cable and infrastructure is not necessary, there is not much difference in the cost per one subscriber. However, for the case of rural region, we found that there is remarkable difference in the cost per one subscriber among technologies. Therefore we conclude that the economics of local loop architecture is depend on the density of subscriber and existing network infrastructures. we hope that this paper contribute to the optimal technology selection of consmer, technology Providers, and government.

• Journal of Korean Society of Rural Planning
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• 제19권4호
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• pp.283-291
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• 2013

In this paper, in order to clarify the effect and characteristics of rural women enterprise in rural areas, AWATAKE Restaurant at Kita Ward, Kobe is taken as a case study, and its management and operation condition, and the effects towards the region are analyzed. As a result, it can be concluded that: 1) according to the local employment and purchase of local food products, the economic effect towards the area shows a returning 73% of the gross sales to the area, 2) lifestyle technology which is empowered by women and food culture which is used as a start in the enterprise activities, are functioning as new workplace to cultivate technologies own by the women, moreover, members have never decreased, and most of them stayed for as long as 10 years, 3) however, the average age of the members are high and decreasing, leaving a new task on how to encourage participation of young members, 4) lastly, rural women enterprise is easy to manage, and also received cooperation from family in the members' working environment.

• Journal of Korean Society of Water and Wastewater
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• 제27권1호
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• pp.11-20
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• 2013

This Study includes the information of integrated discussion and economies of scale on local governments' sewerage treatment plant through translog function based on the reality reports of sewerage treatment plant operation published by Ministry of Environment and sewerage statistics data from 2005 to 2010. Based on analysis results from the data of 35 local governments in Jeollanamdo and Jeollabukdo, which are selected as pilot project areas of sewerage facility integration by Ministry of Environment and have low percent of sewered population, it shows the existence of economies of scale. The economies of scale on sewerage treatment show the loss of approximately 22,211 thousand ton/day in sewage treatment, it is 1.7 times compared to the average treatment amount of 35 local governments as of 2010. It means the economies of scale can be achieved by lowering operation cost along with large scale integration in installation, operation and maintenance due to the features of sewerage industry as one of network industry.

• Journal of The Korean Society of Integrative Medicine
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• 제5권3호
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• pp.71-82
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• 2017

Purpose : This qualitative study aimed to determine the health problems and thoughts regarding health promotion of residents of the community. Method : Eighteen residents living in S-gu (local area) located in Busan city and health professionals working in health-related workplaces in the area were selected as participants. Focus groups were extracted and composed, and a focus group interview was conducted for six months from November 2015 to April 2016. Data were analyzed using a phenomenological method outlined by Colaizzi. Result : There were 187 significant statements derived from the data obtained from focus group interviews. These statements were categorized into 33 meaning units based on the researcher's interpretation. Thirteen themes were derived from the derived meaning units and finally categorized into five theme clusters: "People who are trapped in," "Health is what you make yourself," "Pathetic health problems in our community," "Finding solutions to health problems," and "Shortcuts to healthy community." Conclusion : The study results can be applied to the identification of a community health problem and the construction of a long-term health promotion system. In future research, it will be necessary to conduct an experimental study on various programs and approaches for promoting community health, which reflects the solutions to the health problems in the community.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• 제15권5호
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• pp.439-445
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• 2003

The purpose of this study is to suggest the improvement strategies for exhaust performance in composite kitchen hoods. The Exhaust only hood, the 2-way compensating hood and the 3-way compensating hood were selected, and the laboratory experiments were performed to compare the local exhaust efficiency and the indoor temperature distributions according to the variations of the hood type and supply/exhaust air velocity. The results of this study can be summarized as follows. The compensating hood has better performance than exhaust only hood in the aspect of local exhaust efficiency and temperature distribution. The 3-way compensating hood shows the best performance when the supply air velocity is about 2.7 m/s, and the 2-way compensating hood at the supply air velocity of 3.5 w/s. In the same exhaust rate condition, if the exhaust area of the hood is increased and therefore the exhaust velocity is lowered, the supply air velocity is also lowered to get the optimum performance. The optimum exhaust velocity range of the commercial kitchen hood which derived from this study is 0.48 ∼ 0.55 m/s.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 한국해양공학회 2004년도 학술대회지
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• pp.242-246
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• 2004

Effects of circumferentially local wall thinning on the fracture behavior of pipes were investigated by monotonic four-point bending. Local wall thinning was machined on the pipes in order to simulate erosion/corrosion metal loss. The configurations of the eroded area included an eroded ratio of d/t= 0.2, 0.5, 0.6, and 0.8, and an eroded length of I = 10 mm, 25 mm, and 120 mm. Fracture type could be classified into ovalization, local buckling, and crack initiation depending on the eroded length and eroded ratio. Three-dimensional elasto-plastic analyses were also carried out using the finite element method, which is able to accurately simulate fracture behaviors excepting failure due to cracking. It was possible to predict the crack initiation point by estimating true fracture ductility under multi-axial stress conditions at the center of the eroded area.

• Journal of Sensor Science and Technology
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• 제13권1호
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• pp.56-65
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• 2004

In this paper, we proposed the detection algorithm of microcalcification based on region growing method with contrast and edge sharpness in digital X-ray mammographic images. We extracted the local maximum pixel and watershed regions by using watershed algorithm. Then, we used the mean slope between local maximum and neighborhood pixels to extract microcalcification candidate pixels among local maximum pixels. During increasing threshold value to grow microcalcification region, at the maximum threshold value of the contrast and edge sharpness, the microcalcification area is decided. The regions of which area of grown candidate microcalfication region is larger than that of watershed region are excluded from microcalcifications. We showed the diagnosis algorithm can be used to aid diagnostic-radiologist in the early detection breast cancer.

• Transactions of the Korean Society of Mechanical Engineers A
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• 제26권4호
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• pp.731-738
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• 2002

To understand failure behavior of pipe thinned by flow accelerated corrosion, in this study, the pipe failure tests were performed on 102mm-Sch.80 carbon steel pipe with various local wall thinning shapes, and the failure mode, load carrying capacity, and deformability were investigated. The tests were conducted under loading conditions of 4-points bending and internal pressure. The experimental results showed that the failure mode of thinned pipe depended on magnitude of internal pressure and thinning length as well as loading direction and thinning depth and angle. The variation in load carrying capacity and deformability of thinned pipe with thinning length was determined by stress type appled to the thinning area and circumferential thinning angle. Also, the effect of internal pressure on failure behavior was dependent on failure mode of thinned pipe, and it promoted crack occurrence and mitigated local buckling at thinned area.