Quality management has become an pervasive philosophy in most sectors of business. Specific movements such as statistical quality control, quality circle, total quality management, and quality management system have become embedded in business organizations. Only the companies with competitive edge can survive in the competition in global market. KSA(Korean Standards Association) established in 1962 has launched all kinds of quality education, quality standard certification service for business, and KNQA(Korean National Quality Award) system. This article considers quality competitiveness excellent company award among KNQA. We performed a statistical analysis of audit data for quality competitiveness excellent company for three years, from 2015 to 2017. By using ANOVA and two sample t-tests, the average scores of 13 evaluation fields were significantly different depending on company size and type. We proposed ways to improve the current hall of fame system. We discovered that the average scores of 13 evaluation fields in the audit data according to years and hall of fame status were not significantly different. We also showed linear relationships among 13 evaluation fields by correlation analysis and obtained an estimated linear regression equation : Business Performance, which is a comprehensive index, as a dependent variable was significantly related to Customer Focus and Product Liability as regressor variables among 13 evaluation fields by regression analysis.

The International Organization for Standardization published ISO 9001 Quality Management System– Requirements in 1987 and has revised four times since then. ISO 9001:2015 is the latest edition. This latest edition has two most noticeable changes. The first major change of new edition focuses on performance with an emphasis on Risk-Based Thinking (RBT) to enhance the process approach. The new edition consists of ten clauses whose first three clauses are largely same as older edition but risks are clearly stated and stressed in last seven clauses, emphasizing on Plan-Do-Check-Act cycle at all levels in the organization. The second major change is that the new edition has the same overall structure as other ISO management system standards known as High Level Structure with Annex SL. In this article we aim to statistically analyze minor nonconformities found in different types of transition audits. We try to interpret the findings and summarize the implications of the statistical results.

The International Organization for Standardization published ISO 9001 Quality Management System – Requirements in 1987 and has revised four times since then. ISO 9001:2015 is the latest edition and organizations are supposed to obtain the certificate of the new version registration by late 2018. This latest edition has two most noticeable changes. The first major change of new edition focuses on performance with an emphasis on Risk-Based Thinking (RBT) to enhance the process approach. The new edition consists of ten clauses whose first three clauses are largely same as older edition but risks are clearly stated and stressed in last seven clauses, emphasizing on Plan-Do-Check-Act cycle at all levels in the organization. The second major change is that the new edition has the same overall structure as other ISO management system standards known as High Level Structure with Annex SL.In this article we pursue to explain the basic concept of Risk-Based Thinking and describe six steps of Risk-Based Thinking using a realistic example. We enumerate all possible risks that can be occurred in organizations and propose a specific risk management procedure that the quality managers of organizations can systematically implement.

In this study, UV irradiation reactors were used to eliminate 4 types of volatile organic compounds (VOCs) in various experimental conditions. The 4 types of VOCs used include acetone (AC), chlorobenzene (CB), dichloromethane (DCM) and methylbenzene (MB). An ozone producing low-pressure mercury lamp that emits UV irradiance at 254 nm and 185 nm was used. The tested operating conditions included UV light intensity, inlet VOCs concentrations, empty bed retention time (EBRT), background gas and relative humidity (RH) of the gas. Firstly, higher UV light intensity is confirmed to have higher VOCs removal efficiency (RE). Higher inlet VOCs concentration will result in lower VOCs RE, and the decreasing trends of different VOCs are not identical. At the same inlet VOCs concentrations, increasing the EBRT will result in a rise in VOCs RE, but a further increase in EBRT will bring about less enhancement in RE. Moreover, UV irradiation in oxygen has the highest VOCs RE compared with that in air and nitrogen gas (N2), indicating that photolysis and photooxidation are both important. Finally, there was no increase the VOCs RE at the increase in RH. All the experimental results indicate that an identical set of operating conditions should be applied when the removal capacities of different VOCs according to the UV irradiation amount are compared.

본 논문은 ISO에서 2008년 규격이 최근 2015년 규격으로 개정 발행됨에 따라 ISO인증이 필요한 조직들은 필수적으로 2018년 9월까지는 전환심사를 통하여 개정 인증을 받아야 한다. 2015년 개정 규격의 가장 중요한 특징은 리스크 기반 사고에 근거한다는 점과 2008년 규격의 5개 Sectors를 7개 Sectors로 확장하여 요구사항 들을 구체화시켜서 과거의 예방조치의 개념에서 리스크의 개념으로 전환하고 PDCA 싸이클속에 내재하는 품질경영시스템의 요소들을 시스템적으로 관리하는 것이다. 이에 따라 개정규격의 인증이 필수적인 여러 조직들 가운데서 동남지역에 위치한 제조업체들을 선택하여 제조업체 여러 가지 특성들에 대한 자료들과 개정규격의 적합성을 통계적으로 분석함으로써 그들의 관련성을 발견하고 개정규격이 용이하게 운용될 수 있도록 제안하고자 한다.

Quality has been one of the critical issues in modern industry. Korean government has performed quality competitiveness assessment targeted on manufacturing industry, construction industry, and public service sector since 1997. Korean government first asks for them to evaluate quality competitiveness by themselves. An expert group consisted of faculty members in universities assesses the results of the self-evaluated quality competitiveness. The audit data assessed by the expert group are finally reevaluated in public and the ministry of trade, industry, and energy confers a title for best enterprise every year. We statistically analyze the final audit data for quality competitiveness assessment in 2014. We aim to figure out the characteristics based on business size – large-size company or small and medium-size company, the ownership-public or private company, the types of business, and the level of quality competitiveness. The results of data analysis are summarized and the implications are stated.

The Ministry of Environment established a data base platform called environmental statistic portal. From there we collected environmental statistics including sulfurous acid gas, fine dust, carbon monoxide, nitrogen dioxide, household waste, domestic waste, construction waste, the number of factories, the amount of waste water, the amount of organic matter, etc. We collected the number of tuberculosis (TB) patients from National Health Service in Korean Statistical Information Service. We consider the number of TB patients and environmental statistics as a dependent variable and predictors, respectively. A multiple regression analysis is performed to find out significant predictors that affect the number of TB patients. A deep analysis is done to discover the relationship between significant predictors and the dependent variable depending on national district areas, i.e. Gu or Goon, by use of a multivariate analysis and a covariance analysis.

We designed a dual type stick from a universal design point of view for the aged who need walking sticks. The dual type stick is a differentiated walking stick different from the existing walking sticks because it is a walking assistance device with stability and convenience that can be used for flatland gait and step gait for the aged. This research as one of the processes of capstone design is conducted by utilizing 3D rendering, 2D design, stress analysis using inventor according to stick materials, and a 1/4 scale mock-up product.

In product process it is agreeable to testify and reflect the customer's needs in design and function and to create attractive quality factor effectively. In this study used KANO model to catch the excellent quality factors in SmartPhone and aimed to help design. We made a survey and performed customer factor analysis.

기업은 환경변화에 살아남기 위한 경영전략의 일환으로 녹색경영시스템의 운영에 대한 중요성이 부각되고 있다. 기후변화와 환경오염 문제가 관심사로 등장함에 따라 녹색경영시스템 운영에 대한 추세를 다루었으며 녹색경영시스템 인증시스템 구축 기업을 대상으로 요구사항에 대하여 특성을 분석하였다.

International Organization for Standardization has recently published ISO 9001:2008 which is the basic requirements for a quality management system that an organization must fulfil to demonstrate its ability to consistently provide products that enhance customer satisfaction and meet applicable statutory and regulatory requirements. Not many empirical researches based on ISO 9001:2008 have been done up until now. In this article we outline transitional features for ISO 9000 quality management system (QMS) since its first publication in 1987. In order to effectively maintain ISO 9001:2008 QMS certification and continuously enhance quality management activities, we perform statistical analysis for the minor nonconformity data generated from follow-up audits for subcontractors of shipbuilding industry based on ISO 9001:2008 requirements. A Kruskal-Wallis test is used to show relationships between the minor nonconformity data and three classification criteria: the type of business, the size of business, and the number of follow-up audits.

This study attempts to identify whether Phenethylamine (PTA), having a similar smell to fish malodor, is appropriate as a replacement of Trimethylamine (TMA). In a continuous measurement test, the odor intensity of both reagents TMA and PTA measured within 5 minutes showed between 0.4~0.7, indicating a dramatic reduction in olfactory sense, while the measurement test conducted after olfactory recovery did not represent much decrease. The result shows that both TMA and PTA have odors that stay long, but are judged to be inappropriate as a replacement as they stimulate the olfactory sense of the panel and give direct impact on the panel"s next judgement.

Two study were carried out to get basic data to improve the olfactory odor estimation method. The first study was to observe the odor intensity of reagents used to select the panel in Korea and Japan. And the second study was to compare the ratio of successful applicants of panel selection between Korea and Japan. As a results, it was observed that the average odor intensity of panel selection reagents in Korea is 3.8 degree and the one of Japan 1.8 degree. As the ratio of successful applicants of Japan method 88% is higher then the one of Korea mothed 30%, it was estimated that Korea method is more strict than Japan method.

We consider a mixed model with covariates considered as fixed effects and a random factor. In this paper, we consider methods for constructing confidence intervals on measures of variability in repeatability and reproducibility study to the mixed model with fixed effects and random effects. Computer simulation is used to determine how well confidence intervals maintain the stated confidence level and compare confidence interval lengths for the methods. A numerical example is considered to illustrate the confidence intervals proposed.

대학과 기업이 신뢰와 협력을 기반으로 산학협력 사업을 통한 기술개발 확대와 산업기술인력 양성을 위한 전략은 국가 경쟁력 확보차원에서 매우 중요하다. 국민소득 2만불로 향하고 있는 시점에 필요한 소프트한 동력은 전문적이며 창의적인 산업기술인력 확보다. 본 연구는 정부는 다양한 산학협력사업과 산업기술인력 정책을 살펴보고 대학과 기업의 역할을 제시하고자 한다.