• International Journal of Reliability and Applications
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• v.2 no.3
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• pp.161-187
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• 2001

Starting with the meaning of the word quality, diverse concepts connoted by the term are examined. Instead of a bathtub curve, the desirable shape of a failure rate covering the entire life of a good product, which might be called hockey-stick line, is introduced. From the hockey-stick line and the definition of reliability, two measurements are extracted. The terms reliability, failure rate, product life, and durability are explained. From the customer's standpoint, the concept of product quality is classified in five factors, according to related technology: performance, reliability, conformance to specifications, customer perception, and fundamentals advantage. The correlation of the five factors for a first-class product is discussed, Since the market share of a company is determined as the competition result of its product value, defined as product quality and price, the market share increase is derived mathematically from the increment of product value. The market share increase, $\Delta$S, can be calculated from the present market share, S, and the oriented relative value increment of new product, R, to the current product in the same company for the same market target: $\Delta$S : $\Delta$(1-S). R/(1+S.R). Finally, the importance of separating warranty cost from the profit equation for the durables is explained.

• Journal of the Institute of Convergence Signal Processing
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• v.11 no.4
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• pp.278-288
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• 2010

In this paper, we carried out quality assessment and analysis of stereoscopic 3D Television pictures according to ITU-R contribution and recommendation by rating scales using DSCQS (Double-Stimuli Continuous Quality Scale) method. The evaluation results show that overall quality and sharpness of stereoscopic pictures revealed almost no difference compared to cases of mono pictures as to natural outdoor scenes, graphic images, and indoor scenes (about 3.0 above ~ 4.0), but depth perception and sensation of reality of stereoscopic images exhibit better quality performance over mono images as indicated more than 4.0 out of 5.0 grade. Evaluation results should be considered as human factors such as disparity when shooting and/or editing 3DTV.

• Journal of Broadcast Engineering
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• v.17 no.2
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• pp.223-236
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• 2012

We develop a video processing method that allows the more advanced human perception oriented video coding. The proposed method necessarily reflects all influences by the rate-distortion based optimization and the human visual perception that is affected by the visual saliency, the limited space-time resolution and the regional moving history. For reflecting the human perceptual effects, we devise an online moving pattern classifier using the Hedge algorithm. Then, we embed the existing visual saliency into the proposed moving patterns so as to establish a human visual perception model. In order to realize the proposed human visual perception model, we extend the conventional foveation filtering method. Compared to the conventional foveation filter only smoothing less stimulus video signals, the developed foveation filter can locally smooth and enhance signals according to the human visual perception without causing any artifacts. Due to signal enhancement, the developed foveation filter more efficiently transfers the bandwidth saved at smoothed signals to the enhanced signals. Performance evaluation verifies that the proposed video processing method satisfies the overall video quality, while improving the perceptual quality by 12%~44%.

• Quality Improvement in Health Care
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• v.23 no.2
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• pp.37-54
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• 2017

Objectives: The purpose of this preliminary study was to identify the nurses' perception regarding disclosure of patient safety incidents (DPSI) and to evaluate the effectiveness of education for DPSI. Methods: DPSI education was conducted for nurses majoring in clinical nurse specialist at an university. Before and after the education, the nurses made a questionnaire to evaluate the perception of DPSI. The questionnaires were divided into four categories: first, overall perception of the DPSI; second, recognition evaluation of the DPSI using hypothetical case, third, opinion on legal and nonlegal measures for facilitating the DPSI; and fourth, socio-demographic factors. The Wilcoxon signed rank test was performed on the DPSI questionnaire response to compare the perceptions before and after the education. Results: A total of 10 nurses participated in the education. DPSI education showed the possibility of improving the overall perception, necessity, effect, obstacle, and promotion method of DPSI, although there were also several responses where there was no statistical significance. In particular, DPSI education led to statistically significance change in the perception of obstacles for DPSI. For example, the number of respondents who agreed to the item "DPSI will increase the incidence of medical lawsuits." was 7 before education but decreased to 3 after education (P-value: .025) Furthermore, nurses' perception of DPSI from this study was generally positive regardless of education. Conclusion:In the future, it will be necessary to carry out DPSI education and training and to evaluate its effectiveness for more nurses.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.6
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• pp.877-888
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• 2002

Price is a product attribute, which is determined by the function of the producing cost and profit. It is also identified as one of the most important components of the marketing mix. For consumers, price is an always-existing cue, definite evaluation criteria, and easily accessible information in the purchasing process. Considering the concept of the clothing-price in a comprehensive perspective encompassing economic, psychological and marketing perspectives, a theoretical model was developed. The model includes souses and dimensions of price perception and related behaviors. Souses of price perception were: the actual retail price at selling point, the internal reference price and external reference price. The dimensions of price perception included sacrifice perception, economic value perception, inference, savings perception and price as information perception. Clothing price related behaviors that flowed these dimensions were: low price consciousness, value for money consciousness, price-quality inference, price-prestige inference, sale proneness and price mavenism. An empirical study was conducted to validate the theoretical model. A questionnaire was developed and data were collected from 680 adult women living in Seoul, Korea. Confirmatory factor analysis as well as exploratory factor analysis results showed that theorized price related behaviors were successful classifications.

• Korean Parent-Child Health Journal
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• v.10 no.2
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• pp.136-146
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• 2007

Purpose: The purpose of this study was to provide fundamental data in ensuring a high quality of nursing needed by hospitalized child's mother through research of the mother's perception of uncertainty and nursing need concerning child's hospitalization. Method: 173 hospitalized child's mothers at G hospital in Busan are questioned. The tools used in this study are PPUS(Parent's Perception of Uncertainty Scale) and the nursing need of hospitalized children's mother. The data was analyzed by SPSS/PC program. Results: 1) The perception of total uncertainty for the hospitalized child's mother showed average 2.37 and the nursing need showed very high level, 3.37. 2) The perception of uncertainty in accordance with general character of the hospitalized child's mother shows non significant difference 3) Significant correlation indicated between the perception of uncertainty of hospitalized children's mother and nursing need. Conclusion: It is to be desired to prepare a program which can raise the level of perception developing a method that is able to practically assess and manage the level of perception of hospitalized children's mother.

• Korean Journal of Occupational Health Nursing
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• v.33 no.2
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• pp.47-54
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• 2024

Purpose: This study aims to identify the level of subjective noise perception among School Meal Facility Workers and analyze the relationship between subjective noise perception and insomnia, as well as the factors affecting insomnia. Methods: School meal facility workers were surveyed from November 1 to December 31, 2021, and 717 people were selected as participants for the study. Using SPSS/WIN 25.0, t-test, x² test, and multiple logistic regression analysis were conducted. The Korean Insomnia Severity Index (ISI-K) was used to evaluate insomnia. Results: The variables that showed significant differences in insomnia in general characteristics, health-related characteristics, subjective health perception, and subjective noise perception of the study participants were mental disorders such as subjective health perception, work stress, depression, etc., gastrointestinal disorders, and subjective noise perception, among which subjective health perception, mental disorders such as depression, and subjective noise perception were analyzed as factors influencing insomnia. Conclusion: To improve the quality of insomnia and sleep among school meal facility workers, there is a need to improve healthcare, emotional management, and noisy work environments.

• The Journal of the Korea Contents Association
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• v.22 no.10
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• pp.615-626
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• 2022

At present, there are a lot of theoretical studies on the theme of tea industry brand construction, but in the survey, it is found that the theory that can study the tea industry brand from the perspective of brand equity is extremely lacking. This paper takes Rizhao Green tea as the research object, focusing on the influencing factors of Rizhao Green tea brand equity from the perspective of consumers and the relationship between various factors. The results show that the brand equity of Rizhao Green tea is composed of brand awareness, regional association, quality perception and brand loyalty. There is a certain correlation between each dimension and has an impact on brand equity. There is a significant correlation between brand awareness and regional association. Brand awareness has no significant impact on quality perception. Regional association has a significant positive impact on quality perception and brand loyalty. Brand awareness and quality perception have a significant positive impact on brand loyalty. The research results can provide theoretical basis and practical guidance for the construction of Rizhao Green tea brand assets while making up for the lack of theoretical research in this field.

• Journal of Korean society of Dental Hygiene
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• v.11 no.6
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• pp.863-870
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• 2011

Objectives : It examines influence of satisfaction with dental esthetics upon quality of life related to oral health after examining the satisfaction with dental esthetics and the quality of life related to oral health according to subjective perception. Methods : The subjects who have experience of dental esthetics from June 2010 to August 2010 in 50 places of hospitals and clinics with dental esthetics in Seoul, which were selected with convenience sampling, the structured questionnaire was widely distributed to 315 people who agreed to research. After making the subjects respond with self-reported method, data was collected. 298 copies except 17 copies were used in the final analysis. Results : The better in the perceived general health group led to the higher satisfaction with orthodontic treatment(p=0.001). There was significant difference even in satisfaction with dental bleaching(p=0.030). The better in the perceived general health group led to the higher quality of life related to oral health(p=0.002). The subjective perception was indicated to have relationship with satisfaction at dental esthetics or quality of life related to oral health. The satisfaction with orthodontic treatment(${\beta}$=2.142, p=0.038) was indicated to be relevant factor of having influence upon quality of life related to oral health. Conclusion : As a result of analyzing partial correlation analysis by having subjective perception as control variable, the satisfaction with orthodontic treatment and the life quality related to oral health showed positive correlation.

• Journal of Korean Society of Rural Planning
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• v.23 no.4
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• pp.75-90
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• 2017

The study was intended to identify the effect of the rural development projects (comprehensive improvement of the seats of Eup and Myeon and regional unit comprehensive development projects) on the quality of life in rural areas against local residents living in areas subject to those projects by means of structural equation modeling based on covariance structure analysis. The result indicated that perception factors affecting the quality of life for residents in rural areas by the projects included 'improvement in spatial environment', 'increase in vitality of rural areas', and 'promotion of community activities.' It was also suggested that 'improvement in spatial environment' and 'increase in vitality of rural areas' have significantly positive effect on the quality of life for residents in rural areas while the former has relatively higher correlation. In comparison between comprehensive improvement of the seats of Eup and Myeon and regional unit comprehensive development projects, it was analyzed that all the perception factors of the comprehensive improvement of the seats of Eup and Myeon have effect on the quality of life for residents in rural areas indicating that comprehensive improvement of the seats of Eup and Myeon is more effective than regional unit comprehensive development projects in promoting the community activities. It means that existing rural development projects have been promoted to improve spatial environment rather than improving the quality of life for residents in rural areas. Thus, it is considered that the rural development projects in future should seek for a sense of community so that they can induce voluntary participation by local residents.