• Title/Summary/Keyword: Improvement of Product Safety

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Research on Ontology-based Task Adaptability Improvement for Digital Human Model (온톨로지 기반 디지털 휴먼모델의 작업 적응성 제고 방안 연구)

  • Kang, Su-Ho;Sohn, My-E
    • Korean Journal of Computational Design and Engineering
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    • v.17 no.2
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    • pp.79-90
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    • 2012
  • In digital virtual manufacturing simulation, Digital Human widely used to optimal workplace design, enhancing worker safety in the workplace, and improving product quality. However, the case of ergonomics simulation solutions to support digital human modeling, Optimal DHM (Digital Human Model) data needed to develop and perform DHM will collect information related to the production process. So simulation developer has burden of collecting information. In this study, to overcome the limitations of existing solutions, we proposed the ADAGIO(Automated Digital humAn model development for General assembly usIng Ontology) framework. The ADAGIO framework was developed for DHM ontology to support optimal deployment of digital virtual environment and in order to ensure consistency of simulation components that are required for simulation modeling was made of a library.

Design and Application of Accelerated Run-in Test for ECU Quality Improvement (ECU 품질 개선을 위한 Accelerated Run-in Test 설계 및 효과고찰)

  • Cho, Hyogeun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.22 no.4
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    • pp.145-151
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    • 2014
  • Modern vehicle has a lot of ECU(Electronic Control Unit) products to control many parts such as engine, transmission, brake, body and so on. ECU quality is one of important factors related to vehicle quality and driver's safety. Based on Bath-tub curve which presents failure rate during product lifetime, we designed and applied Accelerated Run-in Test into manufacturing line by simulating stress amount to ECU and developing the required software and efficient test equipment for mass production. This test makes ECU products stressed through electrical and thermal stresses under excessive driving condition, which induce potential initial failure of components in the ECU during production. The outcome until these days proved that Acceleration Run-in Test have reduced initial failure rates and increased quality of ECU products in the field outstandingly.

Cases Studies on Total Productive Management and Competitive Advantages

  • Li, Chang-Chung;Tsai, Ping-Chen
    • International Journal of Quality Innovation
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    • v.2 no.1
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    • pp.106-116
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    • 2001
  • The purpose of business strategy is to achieve competitive advantages which includes higher efficiency, better quality, more innovation and faster customer response. In other words, The business strategy is to build unique capability of lower cost and/or differentiation. In production aspect, unique capability means better production power with better performance at 3M(Man, Machine, Material) of input and PQCDSM (Product, Quality, Cost, Delivery, Safety, Moral) from output. The Total Productive management (TPM), a series of improvement activities focused on reduction of equipment loss, is a tool to establish business competitive advantages. In this paper, several domestic companies who won the Japan TPM Award have been studied. It is found that there is a strong cause-effect relationship between TPM and competitive advantages because. 1. TPM can change employees mindset effectively. 2. TPM can upgrade employees capabilities. 3. TPM can lead to excellent productivity.

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A Study on HVAC Parameter Monitoring System (Regarding Computer Validation) (HVAC 파라미터 모니터링 시스템에 대한 고찰 (Computer Validation 중심으로))

  • Kim, Jong-Gu
    • Proceedings of the SAREK Conference
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    • 2008.06a
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    • pp.90-95
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    • 2008
  • This article presents practical advice regarding the implementation and management of an impeccable Building Management System. The BMS was introduced to the series of computerized systems including manufacturing, storage, distribution, and quality control. Recently revised GMP regulation is requesting an improvement in drug product quality regulatory system by computer system validation. Quality is critical to guarantee the efficacy and the safety of drugs and is approved in the evaluation process after the audit trail application. HVAC parameter monitoring system will record the identity of operators entering or confirming critical data. Authority to amend entered data should be restricted to nominated persons. Any alteration to an entry of critical data should be authorized in advance and recorded with the reason for the change.

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An Empirical Study on Importance of Evaluation Factors for Improvement of Fire Emergency Medical Service (소방응급의료서비스 향상을 위한 평가요인의 중요도에 관한 실증적 연구)

  • Hwang, Dong-Wan;Kwon, Young-Hee;Kim, Jeon-Soo;Kang, Yun-Jin;Kang, Kyung-Sik
    • Journal of the Korea Safety Management & Science
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    • v.16 no.4
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    • pp.71-80
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    • 2014
  • This study is performed to determine the priorites of the evaluation factors for the improvement of fire emergency medical service by increasing it's efficiency to protect the people's lives effectively, and by recognizing it's mid-long term development. Based on the output of the analysis, the critical evaluation factors of the fire emergency medical services to be improved shall be identified, and shall be intended to use strategically for increasing the efficiency of all the activity in the EMT service, and also for providing the basic date to product and manage the good quality services. To calculate the priority of the evaluation factor for each level as shown on this study, AHP(anaysis hierarchy process) with pairwise comparison method is applied. According to the priority analysis for the evaluation factors in main category (evaluation zone), 'medical service professional aspect' is recognized as highest one, and 'service infrastructure aspect', 'service management aspect' are indicated in order. According to the priority analysis for the evaluation factors in evaluation index, 'professional personal arrangement' in the service infrastructure aspect, 'appropriateness and timeliness of emergency medical care' in the medical service professional aspect, and 'clinical training' in the service management aspect are respectively recognized as most important factors.

Research on Cosmetic Quality Perception and Satisfaction According to Consumer Characteristics (소비자 특성에 따른 화장품 품질 인식 및 만족도 연구)

  • Lee, Eun-Joo;Li, Shun-Hua
    • Journal of Convergence for Information Technology
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    • v.11 no.1
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    • pp.216-224
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    • 2021
  • This study analyzes the differences in perception of cosmetic quality (safety, stability, functionality, usability) and satisfaction according to consumer characteristics, targeting 317 men and women from their 18 to 50s who use cosmetics in Seoul and Gyeonggi Province, and the differences in effect of cosmetic quality perception on satisfaction according to side effects experience was analyzed. Among the cosmetic quality factors, the usability was satisfied, but the perception of safety, stability, and functionality was low, so overall quality improvement was necessary. In particular, the quality perception and satisfaction by men and 40s was low, so a customized solution was needed for this. In the order of usability and functionality, to both those experiencing or not side effect, had a significant positive effect on the satisfaction level, and the improvement of usability and functional awareness was the main factor that increased satisfaction. Improving product quality and supplementing factors that positively influence consumer perception are thought to be of great help in improving quality perception and satisfaction.

The quality improvement of Bulgogi using superheated steam and high hydrostatic pressure (과열수증기와 고압 처리를 이용한 불고기의 품질개선)

  • Kim, Eunmi;Seo, Sanghee;Choi, Younsang;Chun, Kihong;Lee, Eunjung
    • Food Science and Preservation
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    • v.24 no.5
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    • pp.593-599
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    • 2017
  • The objective of this study was to investigate the effect of superheated steam (SHS) and high hydrostatic pressure (HHP) techniques on the improvement of the quality of Bulgogi product during manufacturing process. Bulgogi product was treated with four different cooking/treatment process: conventional cooking (CC), SHS cooking (SHS), CC and then HHP cooking (CC-HHP), and SHS and HHP cooking (SHS-HHP) samples. SHS treated product increased moisture content, and decreased crude protein. Additionally, hardness, gumminess and shear force values were significantly different among the samples (p<0.05). In safety experiment after 14 days of storage at refrigeration temperature indicated that the bacterial population was lower in the case of SHS-HHP as compared to CC-HHP. Changes in texture during the storage periods at $10^{\circ}C$ for SHS-HHP was lowest values with compared to the initial, while shear force values for both tended to decrease with increasing storage period. The TBA and VBN values for SHS-HHP increased to 0.48 ($5^{\circ}C$)-1.68 ($10^{\circ}C$) mg MD/kg and 25.14 ($5^{\circ}C$)-45.14 ($10^{\circ}C$) mg%, respectively after 15 days of storage. Overall, it was found that the combination of SHS and HHP reduced microbial growth, thus leading to improved product quality and sanitation.

Evaluation of Smart Lighting User Experience in Smart Safety Living Lab (스마트안전 리빙랩에서의 스마트 조명 사용자경험 평가)

  • Jo, Eun-Ji;Ryu, Do-Hyeon;Kim, Kwang-Jae;Lee, Gi-Hyun;Yun, Jung-Min;Cho, Jung-Hyun;Jeon, Kwang-sik;Lee, Ji-Yeon
    • Journal of Korean Society for Quality Management
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    • v.50 no.4
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    • pp.679-700
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    • 2022
  • Purpose: Smart lighting adjusts brightness and color temperature according to weather, the user's activity, mood, etc. This study performed user experience(UX) evaluation of smart lighting in a living lab. The purpose of evaluating UX and analyzing the evaluation results is to improve user-friendliness and market competitiveness of smart lighting Methods: A living lab is a virtual or physical space where various stakeholders participate to develop, verify, and evaluate products, services, or systems in a real-life environment. In this study, an environment of using smart lighting was established in the Smart Safety Living Lab. Subjects performed UX evaluation after interacting freely with smart lighting in the Smart Safety Living Lab. Results: As a result of UX evaluation, it was confirmed that UX was overall excellent and subjects were satisfied with setting a desired indoor mood through smart lighting. However, operating the switch of smart lighting may be difficult due to its complexity, and it is needed to improve some functionalities such as the brightness range provided by smart lighting. Conclusion: This study is expected to contribute to establishing the way of UX improvement of smart lighting. This study is also expected to contribute to developing smart lighting as a high-quality product by reflecting the subjects' needs and UX derived in a real-life environment.

Analysis of studies on the by-products of the Broussonetia kazinoki Siebold or Broussonetia papyrifera (L.) Vent. (닥나무 부산물에 대한 문헌 연구)

  • Lee, Nam-Hun;Ha, Hye-Kyung;Lee, Ho-Young;Jung, Da-Young;Choi, Ji-Yoon;Choi, Young-Jae;Jeong, Seung-Il;Shin, Hyun-Kyoo
    • Korean Journal of Oriental Medicine
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    • v.14 no.1
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    • pp.49-58
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    • 2008
  • Objective : To provide information about the accessory product of Broussonetia kazinoki Siebold or Broussonetia papyrifera (L.) Vent by analyzing old books of oriental medicine, domestic/international papers and related patents Methods : Old books related to the accessory product in the field of oriental medicine were reviewed. Research papers regarding the pharmacological activity of the by-products were reviewed and analyzed. Patents about the residual products were examined and classified by year and subject Results : Seven kinds of by-products from Broussonetia kazinoki Siebold or Broussonetia papyrifera (L.) Vent has been used as medicines in oriental medicine. Recently, anti-oxidating, anti-cancer, anti-mutagenic and anti-inflammation activity of the residual product of these plants has been investigated through scientific research. There were 19 patents related with the accessory products of these plants, which were in the subjects of functional cosmetics, anti-inflammation, cleansing goods, hair restorers or improvement of learning ability. Further investigations about the activity of these plants are needed in bone metabolism, water balance and hemostasis in the future. Conclusion : Residual products from these plants is being used in various ways. However, more studies on the efficacy and mechanism, as well as safety, of these plants should be conducted precisely in the future.

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The Effects of Consumers' Recognition and Information Searches Comparative to Private Brand(PB) Products on Consumer Dissatisfaction (유통업체 브랜드(PB)제품에 대한 소비자인식과 비교정보탐색이 소비자불만에 미치는 영향)

  • Ma, Mi-Young;Cui, Ming;Bae, Yoon-Shin;Seo, Mi-Hye;Na, Seung-Bok;Lee, Seung-Sin
    • Journal of Families and Better Life
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    • v.32 no.2
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    • pp.99-116
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    • 2014
  • Domestic PB products have emerged and been distributed by hypermarkets, department stores, convenience stores, as well as TV home shopping channels and Internet shopping malls. However, the fierce competition among the distributors due to the emergence of the PB products have caused the diversion of consumers' recognition to be reduced weight and volume as well as had the effect of misleading consumers about the prices. The width of the PB product price's up and down is larger than the width of the NB product. Thus, following consumers' purchases of PB products, there has been an increasing number of consumer complaints. In order to research consumers' recognition of PB products and to examine how consumers' recognition and information search comparative to PB products affect consumers' dissatisfaction, an online survey targeted consumers with experience purchasing PB products. This study was conducted and analyzed using SPSS 19 Statistics. The findings can be summarized as follows. Even though more consumers who frequently purchased and used the PB products, the more they compared with information search comparative to the NB product and then purchased the PB product. We investigated the result that the relevant variables of consumer complaints have some relative influence in the purchasing of PB products. There will be a higher probability o the group having high recognition about price and safety not making consumer complaints in comparison with the probability of other consumers making complaints after the purchase of a PB product. Therefore, based on the results of this study, companies need to build a system so that they can figure out consumers' needs in order to prevent the occurrence of consumer complaints related to the products of distribution companies' brands. By means of the system, it is also necessary for companies to collect consumer complaints and analyze them by category. Then they eventually should develop a consumer-centered management system which may contribute to quality improvement, product development and the reduction of consumer complaints.