• Title/Summary/Keyword: quality-in-use

Search Result 10,785, Processing Time 0.044 seconds

Wine Quality Classification with Multilayer Perceptron

  • Agrawal, Garima;Kang, Dae-Ki
    • International Journal of Internet, Broadcasting and Communication
    • /
    • v.10 no.2
    • /
    • pp.25-30
    • /
    • 2018
  • This paper is about wine quality classification with multilayer perceptron using the deep neural network. Wine complexity is an issue when predicting the quality. And the deep neural network is considered when using complex dataset. Wine Producers always aim high to get the highest possible quality. They are working on how to achieve the best results with minimum cost and efforts. Deep learning is the possible solution for them. It can help them to understand the pattern and predictions. Although there have been past researchers, which shows how artificial neural network or data mining can be used with different techniques, in this paper, rather not focusing on various techniques, we evaluate how a deep learning model predicts for the quality using two different activation functions. It will help wine producers to decide, how to lead their business with deep learning. Prediction performance could change tremendously with different models and techniques used. There are many factors, which, impact the quality of the wine. Therefore, it is a good idea to use best features for prediction. However, it could also be a good idea to test this dataset without separating these features. It means we use all features so that the system can consider all the feature. In the experiment, due to the limited data set and limited features provided, it was not possible for a system to choose the effective features.

Comparison of the Unbiasing Constants in Connection with Variable Control Charts (계량형 관리도와 관련된 불편화 상수의 비교)

  • Ahn, Haeil
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.37 no.4
    • /
    • pp.134-144
    • /
    • 2014
  • With the advent of lean-six sigma era, an extensive use of analytic tools such as control charts is required in the field of manufacturing. In relation to statistical quality control (SQC) or process control (SPC), the Korean standards have undergone a meaningful change. In this study, the theoretic backgrounds for evaluating the control limits in connection with the variable control charts are examined in view of better understanding the related constants and coefficients. This paper is intended to help the quality control practitioners understand the mathematical backgrounds by comparing related quality control constants and also to encourage them to make use of and to take the advantage of the variable control charts which are very useful for implementing the concept of lean-six sigma in many industrial sites.

Impact of Quality Management Practices on Suppliers' Quality Performance: Empirical Evidence from Korean Automotive Parts Suppliers

  • Park, Seung-Wook;Kim, Youn-Sung;Chan, Peng
    • International Journal of Quality Innovation
    • /
    • v.7 no.1
    • /
    • pp.206-222
    • /
    • 2006
  • Recent research on quality management systemically explored the use of quality management practices and performance. The consequences of using quality practices have not been consistently confirmed despite an increasing number of published empirical studies. The results of empirical studies of quality practices and performance are mixed. This study examines which quality management practices indicate high-, medium-, and low-performance under the TQM framework using MANOVA and multiple discriminant analysis (MDA). To measure quality management practices, this study used the Malcolm Baldrige National Quality Award (MBNQA) framework. Based on a survey of 490 suppliers from eleven different industries in Korea, the results revealed that the high performing group surpasses the medium and low performing groups in process management, employee empowerment, employee education and training, and employee satisfaction. Furthermore, the high and medium performing groups exceed the low performing group in human resource planning and evaluation, strategic deployment, leadership system, and senior executive leadership.

The prophylactic uses of antibiotics for the prevention of surgical site infection and the effects: The 3-year experience in a tertiary hospital (수술 예방적 항생제의 사용 현황 및 관리전후 효과)

  • Yang, Jiyeon;Kim, Moon-Sook;Kim, Yu-Jeong;Lee, Eun-Bong
    • Quality Improvement in Health Care
    • /
    • v.18 no.1
    • /
    • pp.71-78
    • /
    • 2012
  • Background : The objective of this study was to examine the effect of management system for the appropriate prophylactic use of antibiotics in surgical patients at a tertiary hospital from 2007 to 2010. Methods : We collected clinical data of three different surgical procedures(colectomy, heart surgery, hysterectomy) for three months of 2007 and 2010, respectively. The number of total cases was 245(137, 54, 54) in 2007, 240(133, 42, 65) in 2010. We measured the rate of use of inappropriate prophylactic antibiotics, administration within 1 hour prior to the incision and the antibiotics prescription days after surgery. To evaluate the effectiveness of the management system, the results of the two groups(Group1=2007, Group2=2010) were compared by t-test, chi-square test or Fisher's exact test. Result : The rate of Aminoglycoside uses decreased drastically from 11.4% to 0.8%(P<.001). The selection of 3rd/4th Cephalosporin dropped from 11.8% to 5.8%(P=.020). The combination of antibiotics decreased from 27.8% to 11.7%(P<.001). The antibiotic prescription rate on discharge declined from 11.8% to 2.5%(P<.001) and the number of antibiotics prescription days after surgery was shortened from 4.2 days to 2.3 days(P<.001). No significant difference in the rate of administration within 1 hour between two groups was found. Through 3-year management, 5 out of 6 measures were significantly improved(except the administration within 1 hour). The rate of surgical site infection decreased from 2.4% to 1.3%(P=.504). Conclusion : The findings demonstrate that the management system for the prophylactic use of antibiotics in surgical patients was effective in decreasing the rate of surgical site infection during 3 years.

  • PDF

A Study on Purchase Motives at Internet Shopping Mall and Post-Purchase Satisfaction of Cosmetics (인터넷 쇼핑몰에서의 화장품 구매동기와 구매 후 만족에 관한 연구)

  • Kim, Hyun-Jeoung;Lee, Myoung-Hee
    • Journal of the Korean Society of Costume
    • /
    • v.57 no.3 s.112
    • /
    • pp.78-89
    • /
    • 2007
  • The objectives of this research were to investigate the relationships between purchase motives and post-purchase satisfaction of cosmetics at internet shopping malls, and to reveal how cosmetic purchase motives and demographic variables influence to the post-purchase satisfaction. Subjects were 202 females in Seoul who had experiences of cosmetic shopping at internet. Five dimensions of cosmetic purchase motives at internet shopping malls were derived by factor analysis: 'information provision', 'service/quality', 'time saver', 'use convenience', and 'economical efficiency'. Consumers showed relatively high cosmetic purchase motives at internet shopping malls because the prices of on-line shopping mall products were cheaper than those of off-line, and because it was easy to compare various products at internet shopping malls. The motive of 'information provision' had significant positive relationships with the satisfaction of price, quality, color, volume, and skin suitability of cosmetics. The motive of 'time saver' and 'use convenience' had positive relationships with the satisfaction of price and quality. The motives of 'service/quality' and 'use convenience' were higher in career women than in college women. The middle class consumers and the consumers who use internet more had a high 'information provision' motive in shopping cosmetics at internet. The post-purchase satisfaction of cosmetics was influenced most by the experience postscripts and next by economical efficiency, frequency of access to the internet cosmetic malls, and social class(-) in order.

An Empirical Study on the Website Quality Factors Affecting Revisit Intent in Domestic Online Shopping Malls (재방문의도에 영향을 미치는 쇼핑몰 웹사이트 품질평가요인에 관한 실증적 연구)

  • Hong Il-Yoo;Kim Dong-San
    • Korean Management Science Review
    • /
    • v.23 no.1
    • /
    • pp.43-61
    • /
    • 2006
  • This research is an empirical investigation into the dimensions determining the website quality of domestic online shopping malls. A research model that has been formed to find the website quality dimensions is based on DeLone and McLean's information system success model that we adapted to fit the B2C electronic commerce environment by incorporating existing research on IS service quality and website quality. The model incorporates three quality dimensions including the information quality, system quality and service quality, and an attempt was made to empirically examine the relationship between variables of these dimensions and the revisit intent. The results of the study revealed that five quality-related variables were found to importantly contribute to the user's intent to revisit a site : the information accuracy and relevancy, system reliability, ease of use, and on-line support. The paper concludes that the three quality dimensions can serve as a useful framework to evaluate the quality of online shopping mall websites in an attempt to improve the website revisit rate.

Quality Assurance and Performance Evaluation of PET/CT (핵의학 영상장비 PET/CT의 정도관리와 성능평가)

  • Lee, Byeong-Il
    • Nuclear Medicine and Molecular Imaging
    • /
    • v.42 no.2
    • /
    • pp.137-144
    • /
    • 2008
  • Positron emission tomography-computed tomography (PET/CT) provides both functional and anatomical images of high quality non-invasively with better precision in localization than PET alone. Increase in the use of PET/CT, coupled with increasing concerns about the quality of medical services accrued the demands for accurate evaluation of system performance and quality assurance. Thus, well designed programs for performance evaluation and quality assurance are needed. Widely used protocols for performance evaluation of PET are the methods proposed by National Electrical Manufacturers Association (NEMA) in 1994 and 2001. In addition, in order to maintain high quality of PET/CT images, quality assurance programs including periodic (daily, monthly, and yearly). Therefore, in this article, the methods and present state of performance evaluation and quality assurance of PET/CT are reviewed.

Use of Probiotics in Dairy Industry to Improve Productivity and as an Alternative to Antibiotics (낙농산업에서 항생제 사용의 문제점과 프로바이오틱스의 활용을 통한 생산성 향상)

  • Seo, Yeongeun;Yoo, Yoonjeong;Yoon, Yohan
    • Journal of Dairy Science and Biotechnology
    • /
    • v.39 no.2
    • /
    • pp.63-67
    • /
    • 2021
  • Antibiotics are widely used to improve productivity in the dairy industry. However, the inappropriate use of antibiotics causes the deterioration in the quality of dairy products undergoing fermentation and maturation. Hence, probiotic use is emerging as an alternative to curb the increased utilization of antibiotics. Probiotics are defined as "living microorganisms that, when administered in appropriate amounts, confer health benefits on the host." They may improve host disease resistance by regulating intestinal microflora balance and promote animal growth and development. In the dairy industry, probiotics have been studied to increase milk production by improving digestion in dairy cows, enhance the content of dairy components such as milk fat and protein, reduce the risk of mastitis in cows, and increase calf weight. Thus, the use of probiotics can improve the production and safety of dairy products. However, some probiotics are still unstable during storage and have low quality and safety issues. Therefore, to reduce the use of antibiotics in the dairy industry, probiotics should be developed and produced considering the above-mentioned problems.

A Study on the design method of the intermediate-zone of the mu1ti-family housing (집합주거에 설정되는 매개영역의 계획수법에 관한 연구)

  • 김길순;이현희
    • Korean Institute of Interior Design Journal
    • /
    • no.23
    • /
    • pp.124-131
    • /
    • 2000
  • In the nowadays years our city's housing environment which progresses rapidly social-economical development is posited the role in the nowadays multi-family housing brings about the individualism of the nowadays city, and makes muddy neighborhood meaning, and the quality of the nowadays city dwelling house environment becoming worse. This study was started with the cognition of the need of intermediate-space, in the our life in the neighborhood city. Intermediate-spaces, has same meaning to come into the action of consciousness of the neighborhood. For the improvement of the quality of city housing, we should cleary recognized the individual territory after we set the proper in intermediate-zone in the multi-family housing. Therefore, this study inquires ito the meaning of intermediate-zone, and catches the formation technique of intermediate-zone and the method of plan through the investigation of the use cases of the multi-family housing which is established intermediate-territory. and then I analyze the role of the formative space by this method. By this method, I grope for the effect of the use through the alternative plan of the design method of the intermediate-zone. If the methods of play use the role in the nowadays multi-family housing, high quality will build up.

  • PDF

Towards a "better" University: the Use of the EFQM Model in a UK Higher Education Institution

  • Blackmore, Jacqueline;Douglas, Alex
    • International Journal of Quality Innovation
    • /
    • v.4 no.2
    • /
    • pp.1-15
    • /
    • 2003
  • This paper examines the use of the EFQM Model in H.E. Institutions in the UK and offers a case study of how one University used the Excellence Model as a means to change the way it operated. It identifies and discusses the critical success factors for a university utilizing the Model, in particular Leadership (criteria 1), People Management, particularly with regard to performance evaluation (criteria 3), having key processes in place (criteria 5) and the identification of the correct key performance results for its various stakeholders (criteria 9).