• The Journal of Asian Finance, Economics and Business
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• 제5권4호
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• pp.101-105
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• 2018

Price discount is one of the commonly used promotion strategies to increase sales and revenue. If a discount is perceived before the purchase (i.e., pre-purchase discount), consumers are likely to perceive it as a potential gain. If it is noticed after making a regular-priced purchase (i.e., post-purchase discount), consumers may develop negative emotions and attitudes. Based on the rising transparency and omnipresence of price and discount information through web and mobile platforms, we attempt to tackle an understudied topic on the negative effect of post-purchase price discount. Specifically, post-purchase discount information may increase consumers' perception of monetary loss, which may affect consumers' decision to return the product, potentially increasing the operating costs borne by retailers. Based on a close scrutinization of the current market environment and previous academic literature, we suggest a novel conceptual framework to understand consumers' perception, attitude, and behavior (perception of loss, willingness to return) upon perceiving various formats of discount promotion (absolute value vs. percentage discount) posterior to the purchase of a product. We also look at the effect of price level (low-priced vs. high-priced). For marketing practitioners, we intend to suggest optimal promotion formats that can alleviate consumers' negative perceptions and prevent additional operation costs.

• 한국치위생학회지
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• 제14권1호
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• pp.25-32
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• 2014

Objectives : The purpose of this study was to investigate the oral hygiene status before and after the dental hygiene care performance to patients by the dental hygienists. Methods : Subjects were 55 adults visiting to dental clinics in Chungnam. The patients agreed to undergo a dental hygiene care performance. A skilled dental hygienist provided dental hygiene care performance including periodontal status, halitosis and oral hygiene status. Results : The periodontal pocket depth was compared before and after the performance. The depth dropped from 4.02 mm to 2.81 mm, and the value of halitosis dropped from 45.78 bbv to 35.76 bbv. The O'Leary index of the patients dropped form 49.37 to 32.84, and all the differences were statistically significant. Conclusions : Proper use of oral hygiene supplies and regular dental checkup can prevent periodontal diseases. This study will provide the useful information of the effective application of dental hygiene care performance.

• 한국위성정보통신학회논문지
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• 제11권2호
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• pp.48-54
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• 2016

최근 비선형 시청행위 확산에 의해 고정형TV, 웹TV 등에서 VOD 서비스의 소비가 증가하고 있다. 그러나 현재 VOD 시스템은 VOD 콘텐츠 생성부분을 제외한 모든 부분이 시스템적으로 자동화되어 있다. 따라서 본 논문에서는 VOD 콘텐츠 생성부분을 자동화하는 방법에 대해 제안하였다. 이를 위해 지상파방송 프로그램의 장르별 구성형태를 분석하였다. 분석결과 프로그램의 시작지점인 광고에서 프로그램으로 전환되는 시점과 프로그램의 종료지점인 프로그램에서 광고로 전환되는 시점에 페이드-인 페이드-아웃 효과로 블랙프레임이 규칙적으로 존재함을 확인하였다. 이를 바탕으로 방송프로그램의 각 프레임에서 RGB 값을 이용하여 블랙프레임을 실시간으로 검출하였고, 이를 통해 VOD 파일 자동생성과 광고 교체에 적용 가능하도록 하였다.

• 한국산업보건학회지
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• 제17권2호
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• pp.131-143
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• 2007

The purpose of this study was to compare the ground reaction forces and plantar pressure variables among three different safety shoes (Type 1: ergonomically designed and high quality shoes, 2: curved and cushioned safety hoes, and 3: regular safety shoes) and to find the effect of insole during walking. Ten healthy subjects were recruited for this study. The ground reaction force was measured using a 3 dimensional motion analysis system. Plantar pressures were measured Pedar Mobile foot pressure scan system. The ground reaction force variables were not significantly different among three different shoe types and insole conditions. After insertion insole, plantar pressure distributions were improved. These results suggest that the type 1 safety shoes was superior than other safety shoes in the statistics, and applying insole could be a possible method to prevent fatigue of lower extremity and musculoskeletal disorders. Further studies are needed to find the effect of ergonomically designed safety shoes design and insole on practical value prevention of musculoskeletal disorder, fatigue and satisfaction of workers.

• The Journal of Korean Physical Therapy
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• 제23권3호
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• pp.37-42
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• 2011

Purpose: The principal objective of this study was to evaluate the power output of ultrasound in Korean clinics and compare the value with Korean and global standards. Methods: A total of 69 units were measured for ultrasound power output. The normal range of power output level was ${\pm}30%$ of the output set according to KFDA standards. Device model, manufacturer, ERA, and BNR were obtained via simple questionnaires. A portable ultrasound power meter was used for output measurement. Results: 37 machines, with reported ERA values, were assessed for power output per unit area. Of these machines, 13 (37.14%) were considered to be compliant with US FDA standards at 0.5, 1.0, 1.5, $20W/cm^2$ and 18 (51.43%) were considered within KFDA standards. The remainder of the machines were outside the standard error and evidenced irregular output levels, even though most of them were the same model. Conclusion: Appropriate ultrasound intensity is incredibly important for safety and effective use. Therefore, the KFDA standards regarding ultrasound may require revision in light of global standards, including BNR and ERA additionally, attention should be paid to regular calibration for safe use in clinical practice.

• 한국염색가공학회지
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• 제25권4호
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• pp.303-313
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• 2013

Alkali hydrolysis of sea-island PET 0.02denier microfiber were compared to those on the fabrics of the 0.06denier microfiber. In the dissolution of the sea component out of sea island type ultra-microfiber, it is important to determine the optimum division and divided material. Weight reduction of sea island ultra-micro sea island fiber was faster than regular PET about 10 times. Also 0.2denier sea-island ultra-micro sea island fiber has better color fastness (washing, friction, and daylight) than 0.06denier level sea-island ultra-microfiber. In this study, 0.2denier ultra-micro sea island fiber shows the possibility of high value product.

• 한국해안해양공학회지
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• 제7권2호
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• pp.135-140
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• 1995

쇄파감쇠과정을 포함한 파랑변형이 규칙파에 의해 관찰되었다. 파랑변형의 기초data를 얻기 위해 사면경사 1/20 및 1/10을 step에 연결한 지형을 설치하여 실험을 실시하였다. 쇄파 후 파고는 감소하기 시작하여 쇄파점으로부터 임의의 거리에 일정한 값을 나타낸다. 본 연구는 안정파고에 관한 일반식을 가지고 신파랑변형모델을 제안한다. 모델은 실험치와 비교하여 급격한 수심변화에도 쇄파 전후의 파랑특성을 잘 설명함을 알 수 있었다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 E
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• pp.1770-1772
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• 1998

This study is concluded under by investigation about the lighting environment on a blackboard in elementary, middle, high school of inchon metropolitan. 1. The illumination was approximated to standard value in the side of quantity by the result of the Mimistry of Education's command. However, the uniformity of illuminescence was relatively increased. 2. In order to raise the blackboard lighting, we installed local lighting fixture for blackboard but most of schools are directly adopted to the way of sticking to the blackboard and the lower part of the blackboard is not effective. So that it is desirable of teacher and students to put the local lighting in front of the higher part of the blackboard or install in setting the perfect diffusion light from the ceiling. 3. Deviation of luminance is also more groat when local lighting exist for blackboard. And, regardless of local lighting, luminance of blackboard in side of window, from direction of floor is high because of regular reflected light. Therefore a curtain or blind must be installed pertinently.

• 대한화장품학회지
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• 제24권3호
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• pp.89-95
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• 1998

The aim of this study is to elucidate the anti-microbial activity and anti-oxidative activity of water-soluble chitosan with a molecular weight of 5,000-200,000. Water-soluble chitosans have demonstrated a regular anti-microbial activity on the tested strians by the paper disk method. In the MIC (Minimum Inhibitory Concentration) test, CC-01 (MW=5,000) with the lower MW showed the higher MIC value than the higher MW chitosan. The MW of chitosan increase, the MIC decreases. MICs of 4 chitosans(CC-02∼CC-05) against S. aureusTCC 65389, E coli ATCC 8739, p. aeruginosa, ATCC 9027 and C. albicans ,ATCC 10231 were 7.0-39.O$\mu\textrm{m}$, whereas MICs of chitosans against A. niger were over 2.OmM. Formula containing chitosan showed higher anti-microbial activities than the formula made with the chemical preservatives(Methylparaben 0.2％ and Imidazolidinyl Urea 0.3％). Among 5 water-soluble chitosans, CC-03(MW=92,163) showed the most potent anti-oxidative activity (IC$\sub$50/ : 0.2mM). In conclusion, the water-soluble low molecular weight chitosan could be served as natural preservatives and antioxidant in cosmetics.

• 복식문화연구
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• 제22권2호
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• pp.198-208
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• 2014

The purpose of this study was to investigate the demand for functional elements of sports climbing shirts. Questionnaire survey data were collected from adult (n=53) and adolescent (n=55) sports climbers. The questionnaire explored respondents' sports climbing activities and need for functional design features of sports climbing shirts. Their design preferences and purchasing value were also investigated. The results showed that respondents regarded ergonomic design and the use of intelligent material as important elements of expert-level sports climbing shirts. Compared to adolescent, adult respondents were more susceptive to functional design elements such as suitability for climbing motions and ease of dressing or undressing. Also, adult sports climbers were more likely than adolescents to prefer shirts that are tightly fit at the chest. Neither adults nor adolescents favored shirts design that is tightly fit at the neck or armpit. The regular shirts length not covering hips and sleeve length ending at the wrist were preferred. The collar stand should not hit the chin. Adult climbers preferred ergonomically designed sleeves on the back shoulder. Adults and adolescents had different preferences for the front neck zipper length. Adults preferred long front zipper length at chest. These findings suggest that sports climbing shirts should have functional features to prevent interference with climbing movements and improve convenience and stability.