• 한국융합학회논문지
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• 제9권4호
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• pp.209-222
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• 2018

컨설팅사는 컨설팅 재구매를 목적으로 컨설팅을 수행하고, 컨설팅 수진 중소기업에서는 컨설팅 품질에 따라 재구매 의도가 발생하는데, 본 연구는 컨설팅서비스품질에 따른 대응정도에 어떤 차이를 보이는지에 대하여 연구 하였다. 컨설팅 수진 중소기업 대상으로 설문 및 통계분석을 실시한 결과 컨설팅 서비스품질이 컨설팅 재 구매 의도에 영향을 미치고, 컨설팅 서비스대응성도 높아야 재 구매 의도가 발생을 확인하였다. 연구결과 컨설팅 서비스 품질이 높다 하더라도 환경변화에 따라 시의 적절하게 대응하지 않는다면 재 구매 발생이 어려움을 확인할 수 있었다. 즉 컨설팅사는 서비스대응성 강화를 위해 서비스 품질과 함께 변화하는 시장정보를 모니터링과 신속 대응시스템을 구축하여야 함을 확인할 수 있었으나, 이를 일반화 하기 에는 데이터 및 시간의 제약으로 연구의 부족함이 있으며, 컨설팅 재구매의도 증가위한 컨설팅서비스품질과 연계된 컨설팅 서비스 대응성 요인을 보완하는 연구가 필요하다.

• Korean Journal of Acupuncture
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• 제21권4호
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• pp.43-51
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• 2004

Objectives : In order to ensure safe acupuncture treatment, the quality of the needle tip is essential. But, there have not been so many studies about the quality of the acupuncture needle tip. For this reason we have been already reported about the quality of acupuncture needle tip in Korea using scanning electron microscope(SEM) in 2002, 2003. In order to compare than other society, we investigated the current condition of the tips of the acupuncture needles sold in Europe. Methods : We obtained the needles made by 7 companies, which are sold currently in Europe, and selected 50 pieces out of 100 pieces from each company by randomized methods. And then we observed the tip of each needle using a scanning electron microscope at ${\times}800$ magnification. Results and Discussion : We found that needles had several defects such as scratch marks on the surface, metallic scuff, lumps and irregularities of the needle tips, stubbed or malformed tips, tips of point off-center, peeled off coated tips, same as Korean needles. There was much difference on the quality of needles among the manufacturers, and some needles seem to need thorough quality control. Allowing for the high price, the quality of some needle in Europe generally are better than that of Korean needles. But some Korean needles hold a top position than European ones in quality. We want a good industrial standard to be made in acupuncture manufacturing fields in the near future, because the safety is not less valuable than the efficacy in medicine.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.262-265
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• 2003

제조업에서는 품질관리가 잘 이루어지고 있는 가운데 우리나라 건설업에서는 1996년에 성수대교의 파괴 1997년의 삼풍 백화점의 분괴, 그리고 올해에 들어서도 지하철의 대 화제 등 건설업에 관련된 사건들이 많다. 건설업에 있어서는 품질 관리에 어려움이 많고 제대로 이루어지고 있지 않다. 이것은 제조업에서는 타 업체와 경쟁하기 때문이다. 품질이 안 좋으면 제품이 안 팔리기 때문에 업체는 열심히 품질을 개선하려고 한다. 그러나 주문생산 일품생산의 건설업에서는 제품의 단일성, 복잡성 등의 제반문제와 함께 주문생산 등, 주문을 받기만 하면 일정 규준에 합격만 하면 되기 때문에 더 이상 품질개선에 노력을 기울이지 않는다. 품질을 개선시키기 위해서는 기술적인 측면과, 문화적, 교육적인 측면에 크게 나눌 수 있다. 이 논문에서는 교육적인 측면 특히 평가방식에 대해서 연구하였다. 건설업에서는 어떤 평가가 이루어지고 있으면 품질개선을 위해서는 어떤 평가가 시행되어야 하는지 제지하였다. 지금까지는 건설업의 특수성, 복잡성 때문에 품질평가가 도입되어지지 않았으나, 한국의 건설업의 제품의 질을 높이려고 한다면 지어진 제품의 품질을 평가함으로써 경쟁시키는 것이 유익한 방법이다. 건설업체들이 자사제품의 품질을 개선하려고 수수로 노력을 하게 될 것이다.

• 산업경영시스템학회지
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• 제42권4호
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• pp.203-210
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• 2019

Recently, a number of researchers have produced research and reports in order to forecast more exactly air quality such as particulate matter and odor. However, such research mainly focuses on the atmospheric diffusion models that have been used for the air quality prediction in environmental engineering area. Even though it has various merits, it has some limitation in that it uses very limited spatial attributes such as geographical attributes. Thus, we propose the new approach to forecast an air quality using a deep learning based ensemble model combining temporal and spatial predictor. The temporal predictor employs the RNN LSTM and the spatial predictor is based on the geographically weighted regression model. The ensemble model also uses the RNN LSTM that combines two models with stacking structure. The ensemble model is capable of inferring the air quality of the areas without air quality monitoring station, and even forecasting future air quality. We installed the IoT sensors measuring PM2.5, PM10, H2S, NH3, VOC at the 8 stations in Jeonju in order to gather air quality data. The numerical results showed that our new model has very exact prediction capability with comparison to the real measured data. It implies that the spatial attributes should be considered to more exact air quality prediction.

• 한국환경과학회지
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• 제25권3호
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• pp.361-371
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• 2016

Ministry of Environment has been operating water quality monitoring network in order to obtain the basic data for the water environment policies and comprehensively understand the water quality status of public water bodies such as rivers and lakes. The observed water quality data is very important to analyze by applying statistical methods because there are seasonal fluctuations. Typically, monthly water quality data has to analyze that the transition comprise a periodicity since the change has the periodicity according to the change of seasons. In this study, trends, SOM and RDA analysis were performed at the Mulgeum station using water quality data for temperature, BOD, COD, pH, SS, T-N, T-P, Chl-a and Colon-bacterium observed from 1989 to 2013 in the Nakdong River. As a result of trends, SOM and RDA, the Mulgeum station was found that the water quality is improved, but caution is required in order to ensure safe water supply because concentrations in water quality were higher in the early spring(1~3 month) the most.

• 복식
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• 제64권3호
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• pp.93-107
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• 2014

This study examines the differences in store service quality and relationship benefits according to clothing consumption values. This study has collected data from adult consumers in their 20s to 60s via offline and online surveys. A total of 459 survey responses were used for the final analysis. The results of this study were as follows. First, clothing consumption values were composed of 4 factors: emotional, conspicuous, individuality, and practical value. In light of the tendency of consumers' clothing consumption values, consumers have been grouped into 3 consumption groups: hedonic, practical, and practical symbolic. Second, consumers considered price policy product quality, salesperson, product assortment promotion, and convenience of store service quality in the order of importance. Regarding the relationship benefit, consumers considered psychological benefit, economic benefit, informative benefit and social benefit in the order of importance. Third, regarding the importance in service quality for clothing consumption value group, practical symbolic consumption group and practical consumption group considered price policy quality service more important than hedonic consumption group, and practical symbolic consumption group considered product assortment quality, promotion service, salesperson service, convenience of store service more important than other groups. Fourth, regarding the importance of relationship benefits for the clothing consumption value groups, practical symbolic consumption group considered informative benefit and social benefit more important than other groups. The practical symbolic consumption group and practical consumption group considered psychological benefit more important than the hedonic consumption group.

• 품질경영학회지
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• 제48권1호
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• pp.51-68
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• 2020

Purpose: The primary objective of this research is to develop the optimal operating conditions as well as their associated design spaces for a Cryogenic Submerged Arc Welding(SAW) process by improving its quality and productivity simultaneously. Methods: In order to investigate functional relationships among quality characteristics and their associated control factors of an SAW process, a stepwise design of experiment(DoE) method is proposed in this paper. Based on the DoE results, not only a multi-dimensional design space but also a safe operating space and normal acceptable range(NAR) by integrating statistical confidence intervals were demonstrated. In addition, the optimal operating conditions within the proposed NAR can be obtained by a robust optimal design method. Results: This study provides a customized stepwise DoE method (i.e., a sequential set of DoE such as a factorial design and a central composite design) for Cryogenic SAW process and its statistical analysis results. DoE results can then provide both the main and interaction effects of input control factors and the functional relationships between the input factors and their associated output responses. Maximizing both the product quality with high impact strength and the productivity with minimum processing times simultaneously in a case study, we proposed a design space which can provide both acceptable productivity and quality levels and NARs of input control factors. In order to confirm the optimal factor settings and the proposed NARs, validation experiments were performed. Conclusion: This research may provide significant contributions and applications to many SAW problems by preparing a standardization of the functional relationship between the input factors and their associated output response. Moreover, the proposed design space based on DoE and NAR methods can simultaneously consider a number of quality characteristics including tradeoff between productivity and quality levels.

• 산업경영시스템학회지
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• 제40권3호
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• pp.27-37
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• 2017

As the global uncertainty of manufacturing has increased and the quality problem has become global, the recall has become a fatal risk that determines the durability of the company. In addition, as the convergence of PSS (product-service system) product becomes common due to the development of IT convergence technology, if the function of any part of hardware or software does not operate normally, there will be a problem in the entire function of PSS product. In order to manage the quality of such PSS products in a stable manner, a new approaches is needed to analyze and manage the hardware and software parts at the same time. However, the Fishbone diagram, FTA, and FMEA, which are widely used to interpret the current quality problem, are not suitable for analyzing the quality problem by considering the hardware and software at the same time. In this paper, a quality risk assessment model combining FTA and FMEA based on defect rate to be assessed daily on site to manage quality and fishbone diagram used in group activity to solve defective problem. The proposed FTA-FMEA based risk assessment model considers the system structure characteristics of the defect factors in terms of the relationship between hardware and software, and further recognizes and manages them as risk. In order to evaluate the proposed model, we applied the functions of ITS (intelligent transportation system). It is expected that the proposed model will be more effective in assessing quality risks of PSS products because it evaluates the structural characteristics of products and causes of defects considering hardware and software together.

• 기본간호학회지
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• 제11권3호
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• pp.317-326
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• 2004

Purpose: This study was done to identify correlations between fatigue and quality of lift in clinical nurses. Method: A sample of 294 nurses working in 3 general hospitals answered a questionnaire containing Yoshitake's fatigue scale and WHOQOL-BREF. Data were analyzed using t-test, ANOVA and Pearson correlation coefficients. The SPSS/WIN 11.0 version program was used. Results: The score for level of fatigue was 2.11 (52.7%) and quality of lift, 2.89 (57.8%). The level of fatigue was highest in the physical domain followed by psychical and nervous-sensual domain in that order. There were statistically significant differences in scores of fatigue depending on the nurse's age, marital status, career, position, health status and present illness. Quality of life had the highest score in the social domain followed by physical, overall, psychological, and environmental domain in that order. There were statistically significant differences in scores on quality of life depending on nurse's age, marital status, career, position, health status and present illness. Conclusion: The relationship between fatigue and quality of lift revealed a significant negative correlation. Based on this study, nursing administrators need to reduce the level of nurse fatigue by providing various programs, which improve quality of life.

• KIEAE Journal
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• 제15권1호
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• pp.5-12
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• 2015

Recently, natural disasters have unexpectedly occurred at various places in the world and the countermeasure of them become the social issues. Many of victims in disasters need temporary residential facilities above all things and many of researches have been conducted in order to develop simple, safe, and economic designs of them. Moreover, indoor thermal comfort and air quality must be considered in the facilities against a disaster, because clean and healthy space should be provided to the suffered victims. In this research, in order to estimate the indoor environment of the developed modular building for disaster preparation, CFD simulation was conducted in the various condition. In this paper, indoor air quality such as the age of air, the concentration of $CO_2$ was estimated by the case study