• 한국의류산업학회지
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• 제12권2호
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• pp.233-239
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• 2010

The purpose of this study was to determine the effect of compression clothing on the body shape of the human subjects. Thirty seven healthy females being overweighted with local adiposity on the buttocks and legs between the ages of 20's to 50's were used as the human subjects for the study. The selected subjects wore the compression clothing during 60 days by 8 hours a day. At the start(T0), after 30(T30) and after 60 days of treatment(T60), a cutaneous echography was measured on the right trochanter area of each volunteer in order to assess the thickness of the subcutaneous fatty tissue. At the start(T0), after 30(T30) and after 60 days of treatment(T60), the body weight of each volunteer was taken and the instrumental variations of skinfold measurements of the abdominal fold and inner thigh circumference of the waist, hips and thigh were conducted. The results show that the echography and weight loss of subjects were reduced to 8.34% and 2.08% after 60 days, respectively. Moreover, the skinfold of subjects was also reduced. Finally, skin elastometry of subjects increased.

• 유통과학연구
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• 제17권9호
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• pp.25-33
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• 2019

Purpose - The purpose of the study was to seek to find out what factors having differences between paid membership customers (Costco membership) and general customers in retail industry. Since Costco operates differently from other conventional retailers, which is expected to have a substantial impact on consumers' preference of retail stores. Research design, data, and methodology - The survey conducted covered 1,000 adults in their 30s~50s living in Goyang and Gwangmyeong where Costco runs stores to determine the effects of Costco's local market-entry from consumer perspectives. 500 respondents were surveyed in each region and those working in the retail sector were excluded to ensure the objectivity of the answers. Results - Costco members in Goyang considered the price, bulk purchasing, and membership benefits as important criteria when choosing their retail store. On the other hand, as for Gwangmyeong, the non-member group's prominent characteristic was that they considered accessibility including travel distance and location and in-store amenities including food court services as important criteria for decision-making. Conclusion - Unique business model of Costco shows a statistically significant difference in terms of consumer awareness. the feature of Costco served as an critical criteria for consumers in their purchasing decision. Moreover, Bulk packaging purchases at Costco results in a strong supplementary relationship with neighborhood supermarkets.

• 한국의류산업학회지
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• 제11권1호
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• pp.6-13
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• 2009

The purpose of this study is to analyze the sensibility of the compound fashion image of contemporary fashion. The specific objectives were to analyze 1)the structure of meaning about fashion sensibility on 2)the difference of fashion sensibility by categories on 3)the difference of fashion sensibility by demographical aspects on 4)the consumer sensibility on the compound fashion image. For collecting data 55 stimulus and questionnaire which consisted of bi-polar 21 pairs adjective scale were contributed 675. The results were summarized as following : 1. Factors of fashion sensibility consist of estheticism, activeness, personality and feminity. And the meaning of fashion sensibility is young and personalty. 2. The man/woman and the past/present are highly estimated personality, the main/subcultural is activeness and the local/global is feminity of fashion sensibilities. 3. gender and age have high difference of the compound fashion image so they are important variance for fashion sensibilities. 4. Preference, purchase and quality are highly influenced by estheticism, pleasure is influenced by personality. The results of this study will be utilized in the clothing design for accepting customers' specific fashion sensibility about compound fashion image.

• 대한조선학회논문집
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• 제48권1호
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• pp.1-7
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• 2011

Cavitation is the formation of vapour bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapor pressure. Various types of cavitations are generated on the propeller blades. As cavity bubbles passing the blade are forced to oscillate in size or shape and come to collapse, they cause very strong local acoustic waves in the fluid and radiate noise. Comparing the Sound Pressure Level(SPL) before and after cavitation, SPL increases 2dB per 1 knot increase in ship speed above the cavitation inception speed(CIS). Consequently, the CIS is an important criteria to design silent propellers. In this work, experimental measurements of radiated noise according to various types of cavitations from the model propeller are carried out in a large cavitation tunnel and their acoustical characteristics are extensively investigated.

• 한국재료학회지
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• 제21권7호
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• pp.364-370
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• 2011

Currently, there are two main issues regarding the development of core technologies in the automotive industry: the development of environmentally friendly vehicles and securing a high level of safety in the event of an accident. As part of the efforts to address these issues, research into alternative materials and new car body manufacturing and assembly technologies is necessary, and this has been carried out mainly by the automotive industries. Large press molds for producing car body parts are made of cast iron. With the increase of automobile production and various changes of design, the press forming process of car body parts has become more difficult. In the case of large press molds, high hardness and abrasive resistance are needed. To overcome these problems, we attempted to develop a combined heat treatment process consisting of local laser heat treatment followed by plasma nitriding, and evaluated the characteristics of the proposed heat treatment method. From the results of the experiments, it has been shown that the maximum surface hardness is 864 Hv by the laser heat treatment, 953 Hv by the plasma nitriding, and 1,094 Hv by the combined heat treatment. It is anticipated that the suggested combined heat treatment can be used to evaluate the durability of press mold.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2004년도 하계학술대회 논문집 Vol.5 No.2
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• pp.1283-1287
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• 2004

The design rules are being more strict with requirement of operation speed and development of IC industry. For this reason, required minimum line-width has been narrowed under sub-micron region. As the length of minimum line-width is narrowed, local and global planarization are being prominent. CMP(Chemical-Mechanical Polishing), one of the planarizarion technology, is a process which polishes with the ascent of chemical reaction and relative velocity between pad and wafer without surface defects. CMP is performed with a complex interaction among many factors, how CMP has an interaction with such factors is not evident. Accordingly, the studies on this are still carrying out. Therefore, an examination of the CMP phenomena and an accurate understanding of compositive factors are urgently needed. In this paper, we will consider of the relations between the effects of temperature which influences many factors having an effect on polishing results and the characteristics of CMP in order to understand and estimate the influence of temperature. Then, through the interaction of shown temperature and polishing result, we could expect to boost fundamental understanding on complex CMP phenomena.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.458-464
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• 2008

The objective of this paper is to seek an alternative to figure out appropriate ways since difficulties lie in the introduction of LRT system to be operated by governments and self-governing local governments in the country. This situation can act as a main cause of breakdown in domestic railway industry by deepening of outflow of national wealth and technological dependency. Policy makers are required to get awareness of justification and necessity of Project management such as project strategy, goals, operating budgets, risks, investment revenue prior to preparing the outline of the introduction of LRT system shall consider securing budget in light of performance, reliability, and safety withe the help of system engineering activities during the entire project cycle such as design, construction, quality management, and commissioning before mapping out the basic plans for LRT project. In view of the current domestic conditions, the first time within the country, Seoulmetro is training professional as trust education of specialist training about LRT system, SE and PM education. This study leads to participating in PM/SE business by human power who finished from education of domestic specialist for LRT introduction corporation and businesses, it is published for introduction of specialist education and business revitalization.

• 인간식물환경학회지
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• 제21권6호
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• pp.493-500
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• 2018

The distribution of standing wreaths has reached about 7.1 million per year and the size of the standing wreath market is estimated to be at least 700 billion won. Among them, 20 to 30 percent are estimated to be reused, resulting in damage to flowerfarms' sales of 110 to 160 billion won per year. Due to the unique characteristics of conventional 3-tier standing wreaths in terms of transportation and installation, companies that lack design expertise have monopolized local distribution markets, and the issue of illegally using standing wreaths has been raised. These issues have highlighted the need for developing new designs and establishing a distribution system to expand the consumption of flowers. This study was carried out to identify consumers' perception of reused standing wreaths and the current systems introduced to prevent the distribution of reused standing wreaths such as the real-name standing wreath production system, the authenticity certificate system, and new standing wreaths. The results of a consumer survey showed that consumers' perception of reused standing wreaths has been high and that reused standing wreaths need to be actively regulated to establish fair trade order and protect consumers' rights. Although the effectiveness of the real-name system, the authenticity certificate system, and new standing wreaths was found to be insufficient, the introduction of these systems was essential and necessary for continuous promotion through broadcasting media.

• 한국해양공학회지
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• 제32권6호
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• pp.458-465
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• 2018

Ice-going ships such as icebreakers, icebreaking tankers, and icebreaking LNG carriers are subjected to wave loads in open water and ice loads in ice-covered water. In terms of the ship's structural design, the local ice load is important. The fatigue failure due to repeated ice loads is also important. ISO 19906 specifies the assessment of the fatigue limit for a polar offshore structures. In addition, Lloyd's Register refers to fatigue damage based on ShipRight FDA ICE. In ShipRight FDA ICE, the fatigue damage indices due to wave and ice loads are simply presented as 0.5 for each load. It also states that the sum of the two fatigue damage indices should not exceed one. This study calculated and analyzed the fatigue damage index and fatigue life considering ARAON's voyage schedules and the assumed Antarctic voyage based on data measured during the Arctic voyage of ARAON in 2010.

• Journal of Sport and Applied Science
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• 제5권1호
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• pp.11-15
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• 2021

Purpose: Swimming industry is improving faster than the other types of sport industries and populations of participating swimming are promptly increasing. Lack of recognition of fire safety in swimming facilities is issues related-studies has only recently begun to pay attention. This study is to review and extract fire safety factors for managing swimming pool. Research design, data, and methodology: The study reviewed related-ordinances, governmental documents, and studies discussing safety management of sport facility. Given the literature review, the study produced an initial construct presenting items and factors including fire safety elements and experts' review were conducted to ensure conceptual validity. Finally, the study generated the final factors and subitems representing fire safety elements for swimming pool management. Results: The study confirms factors and elements as follows: the study identifies fire safety equipments as first factors presenting fire extinguisher' place, its proper run, check list and so forth, Second factor is warning system including fire warning equipment, its proper operation, sprinkler and its proper operation, switch and lamp of emergency panel and their proper run and so on. Third factor is evacuation system including a fire exit, exit sign, broadcasting equipment, and their proper operation, and so on. The other factors are an electronic equipment and its subelements, gas management including safety management of LPG, gas valve, pipe, and fire prevention facility including a fire door and its proper operating. Conclusions: Regarding safety management of swimming pool, further discussions and implications were made, and future directions for related-studies were discussed.