• 유공압시스템학회:학술대회논문집
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• 유공압시스템학회 2010년도 춘계학술대회
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• pp.126-131
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• 2010

In order to improve the life and reliability of fluid components used in the Automotive, Hydraulics and Aerospace industries, the cleanliness of the system parts and components before their assembly into the system is being addressed. The measurement of components and parts cleanliness is related to contaminant collection, analysis and data reporting and ISO Standard are continually being developed to control procedures. This Paper explains the processes in these standards and explains how similar procedures have been adapted to suit the requirements of the respective Industry. It also gives guidance and recommendations on the implementation of these standards, so that best use can be made of them.

• 한국식품조리과학회지
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• 제21권2호
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• pp.155-162
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• 2005

The purpose of this study was to identify factors associated with sanitation and cleanliness regarding the importance of family restaurant employees in the Ulsan and Busan areas. Accordingly, this study conducted a suey questionnaire consisting of 28 measures of food-service as well as major subject descriptors. From the results, the frequency, descriptive, factor, correspondence analysis, major findings and marketing implications could be summarized as follows: First, 6 factors were extracted: cooking and control factor, food and tableware handling factor, personal cleanliness condition factor, purchase and receiving factor, unit food material store factor and Kitchen utensil sanitation factor. KMO and Bartlett' stest statistics showed that the data fitted the factor analysis well. Results of factor analysis, average variance extracted estimates and shared variance showed that the convergent and discriminant validity of 6 factors are supported and Cronbach's alpha showed that the internal consistency of the 6 factors was supported. Second, correspondence analysis indicated that statistically significant relationships existed between some of the family restaurant employee sanitation and cleanliness factors and the family restaurant enterprise.

• 드라이브 ㆍ 컨트롤
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• 제9권2호
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• pp.28-38
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• 2012

Monitoring of system cleanliness levels and counting of particulate contaminant are fundamental to achieving hydraulic system reliability as any departure from the specified cleanliness level is often a precursor to future failures. On-line monitoring of cleanliness levels has the advantage of giving data both very quickly and accurately as environmental influences are eliminated. In this way, corrective actions can be promptly implemented. Most on-line instruments are sensitive to system conditions to a greater or lesser extent, but Automatic Particle Counters (APCs) working on light extinction principles are especially sensitive to the presence of optical interfaces caused by such conditions as fluid mixtures, emulsions, free water and air bubbles. These conditions give erroneous data and can result in drawing incorrect conclusions, wasting maintenance time and ultimately, reduced user confidence in cleanliness monitoring. This paper describes such conditions and shows how the correct selection of the analysis technique can result in reliable cleanliness level data.

• Child Health Nursing Research
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• 제7권2호
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• pp.149-160
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• 2001

The purpose of this study was to explore the health and illness concepts of hospitalized children. The subjects were 129 hospitalized children from 3 to 12 years old in one general hospital. Data were collected through semistructured interviews by authors. This study was conducted from Jun. 1, 2000 to Dec. 31, 2000. Data were coded and categorized by content analysis. The results were as follows : 1. Perceived health concept were physical well-being, food, exercise, powerfulness, emotional stability, obeidence, cleanliness, sleep and ability of social adaptation. 2. Perceived health behavior to maintain health were food, treatment, exercise, cleanliness, obeidence, sleep, emotional stability, power-fulness and psychological stability, physical well-being. 3. Perceived prevention of illness were food, cleanliness, treatment, exercise, obedience, sleep, powerfulness, psychological stability, emotional stability, recreation and ability of social adaptation. 4. Perceived causes of illness were illness, trauma and food. 5. Perceived treatment of illness were treatment, sleep, rest, food, obedience, emotional stability, psychological stability, cleanliness, exercise and powerfulness.

• Korean Chemical Engineering Research
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• 제47권6호
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• pp.688-694
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• 2009

PCB의 먼지 제거용 세정제로 사용되는 스프레이형 세정제를 선정하여 이에 대한 청정도를 평가하였다. 친환경적인 대체 세정제를 채택하기 위해서는 세정제의 세정성, 환경성, 경제성을 평가하여 체계적인 선정절차에 의거하여 도입 및 적용하여야 한다. 객관적이고 효율적인 세정성 평가방법의 정립이 현시점에서 매우 중요하다. 본 연구에서는 여러 세정성 평가 방법들 중 표면관찰평가법인 SEM-EDX(Scanning Electron Microscopy/Energy-Dispersive X-ray) 분석과 적외선열화상카메라(THERMOVISION A20 model)를 이용하여 청정도를 평가하였다. CT-2770 모델의 사운드카드를 $2{\times}2cm$로 잘라내어 스프레이 세정 전과 후의 청정도를 SEM의 이미지 분석을 통해 관찰할 수 있었고 EDX의 성분분석을 통해 먼지의 제거율을 정량화할 수 있었다. 컴퓨터의 P4T-E 모델의 마더보드와 IPC-A-36 모델의 기판을 사용, 오염물로 먼지와 철가루를 사용하여 열화상카메라로 세정 전, 후의 상온과 $50^{\circ}C$ Oven에 방치된 시간의 차이에 따른 온도의 변화를 비교하였다.

• 한국식생활문화학회지
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• 제28권2호
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• pp.195-203
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• 2013

The aim of this study was to provide strategic implications for the coffee market in which competition got severer through IPA analysis based on the attributes of selection of a specialized franchise coffee shop. The results of a positive analysis conducted with undergraduates in their twenties were as follows: According to the evaluation of the importance of the attributes of selection of a specialized coffee shop, the most important were 'cleanliness and hygienic facilities inside the shop (6.09)' and 'taste and quality of the menu (coffee) (6.09)'. According to the performance analysis, those showing the highest performance were 'brand image (4.92)' and 'cleanliness and hygienic facilities inside the shop (4.92)'. According to the result of IPA analysis, what customers regarded as being the most important were 'taste and quality of the menu (coffee)', 'kindness of the staff', and 'cleanliness and hygienic facilities inside the shop', and, in fact, they showed great performances as well. However, 'price of the menu (coffee)' was regarded as being important but did not indicate a great performance; therefore, they showed dissatisfaction with it. Although they did not think 'environment around the shop', 'brand image', 'brand recognition' or 'interior size and scale of the shop' were important, the attributes did not appear to show great performances. Therefore, we need constant maintenance strate gies regarding the fact that consumers are considered to be very important for evaluation, and should make efforts to change the price in advance.

• 대한기계학회논문집B
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• 제31권5호
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• pp.457-466
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• 2007

A numerical and experimental study on the evaluation and the prediction of cleanliness level in the mini-environment system was carried out. Using the concept of local mean air-age (LMA) and effective flow rate, the new direct method for estimating the mini-environment was developed and compared with the previous performance index of airflow pattern characteristics. It was found out that the airflow pattern analysis is a restricted method to estimate the real performance of the mini-environment. The reason is that the airflow pattern cannot predict the effect of the increment of the ventilation rate on the cleanliness level in the mini-environment. While LMA is capable of showing the effects of the contaminant accumulation caused by turbulent intensity, eddy, and the increment of the effective flow rate. This result showed that LMA is more exact and effective performance index than the previous one like the airflow pattern characteristics.

• 동아시아식생활학회지
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• 제21권4호
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• pp.609-624
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• 2011

The purpose of this study was to examine the physical environmental factors in coffee shops which determine customer brand loyalty, and to investigate the mediated effects of customer satisfaction and emotional responses on the causal relationship between the physical environmental factors and brand loyalty. A sample of 400 coffee shop customers was collected from Seoul and Gyeonggi in March, 2011 through a self-administered questionnaire. 351 of 400 subjects were used for validity and reliability analysis. 12 outliers were removed from the analysis, and 339 subjects were used to derive the results. Multiple linear regression and stepwise regression were conducted after the construct validity and reliability. The results can be summarized as follows: (1) Physical environmental factors in coffee shops consists of 5 dimensions such as facility aesthetics, cleanliness, ambiance, layout, and internet environment. (2) Facility aesthetics, ambiance, and internet environment had an influence on brand loyalty. (3) The effects of cleanliness and layout on brand loyalty, were not significant on multivariate analysis. However, the relationship between cleanliness and brand loyalty was mediated by emotional responses and also the relationship between layout and brand loyalty was mediated by customer satisfaction. (4) The mediating effects of customer satisfaction were higher than those of emotional responses.

• 한국식품조리과학회지
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• 제15권4호
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• pp.327-337
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• 1999

This study was conducted on a sampling of 700 mixed college students from seven different schools nationwide by written questionnaire to evaluate the value system of convenience foods among Korean college students. Korean students put value on the following categories of convenience foods in order; convenience, taste, price, appearance, appliance to daily life, variety, locality, nutritional value, originality, improvement required, cleanliness and tradition. Significant differences between the sexes occurred in categories as cleanliness and convenience, since females considered convenience foods as convenient but not so clean (safe to eat). This study also conducted factor analysis on 24 individual convenient foods. Noodles laid emphasis on nutritional value; where refrigerated foods, ready to eat (RE) side dishes, on-the-spot kimbab, and sandwiches focused on cleanliness. Noodles. cereal, and instant soup focused on price. Frozen pizza, noodles, retort, RE meat, ham, fish cakes were dependent on locality and traditionality. Noodles, instant food, and packed kimchi scored highly on convenience. Frozen fried rice, retort, instant porridge, instant rice, RE meat, cereal, instant soup, and RE side dishes on consumption on a regular basis. Cereal, refrigerated foods, and RE side dishes laid emphasis on taste. Noodles, instant rice, cereal, ham, and RE side dishes focused on variety. Retort, RE meat, ramen, cereal, ham, and on the spot sandwiches looked to originality, while canned foods was recognized as ‘needing improvement’.

• 한국의류학회지
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• 제37권2호
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• pp.202-212
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• 2013

Outstanding service quality is a crucial factor to increase customer revisits, to increase customer revisits, to create new customers through positive word-of-mouth marketing and increase profits; in conjunction, the physical environment of department stores have a firsthand impact on customer purchasing behavior. This study examines the physical environment dimensions of department stores in China and the causal relationship with the physical environment, service environment, internal responses and store loyalty. The subjects in this study were male and female adults who finished the shopping the Lotte and Wangfujing Department Store located in Beijing. All participants were over the age of 20 and a one-on-one survey was conducted to gather data from October to November 2011. Data from 424 respondents were analyzed: in addition, AMOS factor analysis and path analysis were used. The results were as follows. First, physical environment factors consist of exterior aesthetic attraction, convenience, cleanliness and an interior aesthetic attraction. Second, exterior aesthetic attraction, convenience and cleanliness affect the overall service environment perception. Third, the service environment exercised an influence on internal responses, and internal responses impacted store loyalty. Fourth, a comparative analysis was made over Korean and Chinese department stores in China to check the research model. In Wangfujing Department Store, exterior aesthetic attraction, cleanliness and convenience had a statistically significant impact on service environment perceptions. In Lotte Department Store, the perception of service environment was under the statistically significant influence of all physical factors (exterior aesthetic attraction, interior aesthetic attraction, convenience and cleanliness). The findings of this study are helpful for Korean Department stores that plan to make inroads into China to formulate efficient service environment strategies tailored to local consumer characteristics.