• 품질경영학회지
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• 제39권4호
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• pp.527-542
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• 2011

The importance of service industry in national economy is getting increasing due to current trend of aging society and increasingly desire for better quality of life. However, the level of labor productivity in domestic service industry is lower than Japan and Germany that are typically strong in manufacturing industry. Difficulty of process control and measurement in accordance with variability and intangibility which are features of service industry, is considered as the cause of this poor labor productivity in Korea. This study aims to present managerial implications by calculating sigma levels on branch bank service quality and suggesting the quality dimensions of banks can be checked through a gap comparison between the sigma level on service quality in the whole banks and service quality in each bank. Quality level presented by the KS-SQI is applied to the measurement method that Yoo Han Joo and Song Kwang Seok suggested in 2006. Spss18.0 is used as an analysis tool. As a result of factorial analysis, 7 dimensions of service quality in KS-SQI can be divided into new 3 dimensions of service quality. This study also suggests that width and number of questions in previous questionnaire shall be extended. The whole of the bank service quality level is evaluated 3 sigma. The research help banks to figure out their service quality level through gap comparison objectively.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2010년도 춘계학술대회 논문집
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• pp.525-526
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• 2010

• 한국대기환경학회지
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• 제5권2호
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• pp.84-96
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• 1989

To evaluate the short term air pollution dispersion model, the diffusion experiment was conducted on the flat terrain near Chuncheon. Sulfur hexafluoride $(SF_6)$ gas was used to determine the horizontal spread of plume $(\sigmay)$ for calculated by CRSTER model. Results show that CRSTER model underestimates $\sigma$y because averaging time adjustment is not applied to calculate the $\sigma$y. The scheme that can estimate the atmospheric stability more accurate than Turner method, was presented.

• 대한안전경영과학회지
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• 제7권4호
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• pp.141-163
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• 2005

The international SPICE (Software Process Improvement and Capability determination) Project ISO/IEC 15504(SPICE : Software Process Improvement and Capability determination) is an emerging International Standard on SPA(Software Process Assessment). A prime motivation for developing this standard has been the perceived need for an internationally recognized software process assessment framework that pulls together the existing public and proprietary models and methods. A SPICE assessment can be considered as one of representative SPA model since assessors assign ratings to indicators and metrics to measure the capability of software process. But this models doesn't provide a systematic measurement procedures and dynamic method for SPI(Software Process Improvement). Through the evaluation of SPICE is capable of providing a substantiated basis for using the notion of capability, as well as providing information for nacessary improvements to the standard using 6sigma process. As a result, this paper propose a measurement procedure and guidelines for application of 6sigma process to guarantee the reliability in SPI and suggest the structure to support SPI on overall organization.

• 정보처리학회논문지D
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• 제13D권3호
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• pp.415-424
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• 2006

CMM/CMMI를 이용하여 프로세스를 정립하고 더 나은 프로세스로 개선하려는 조직이 국내외적으로 많이 늘고 있다. 그러나 SEI에서 제시하는 CMMI와 IDEAL은 각각 프로세스 성숙도와 개선에 초침을 맞춰 우수 프랙티스(Best Practice)들을 나열하고 권고하고 있지만, 구체적인 구현방법이나 도구들에 대해서는 다루고 있지 않다. 이에 본 논문에서는 6시그마의 프로세스 개선 방법인 DMAIC 과정과 여기서 사용되는 다양한 도구 및 통계적 방법들을 프로세스 개선영역 식별과 문제도출 및 문제우선순위 파악에 적용하는 방법을 제시하였다. 제시된 방법은 프로세스의 내용에 대해서는 CMMI를 기반으로 하며 개선의 기법으로서는 6시그마를 이용함으로써, CMMI를 기반으로 프로세스의 구현을 시작하려는 조직이나, 구체적인 개선 방법이 필요한 조직, 체계적인 개선사항의 식별 및 정량적 개선결과의 파악이 필요한 조직에서 활용될 수 있다.

• Journal of Biosystems Engineering
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• 제42권3호
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• pp.136-146
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• 2017

Purpose: This paper presents an appropriate wrapping method by analyzing the pressure distribution applied to a bale surface, along with the change in pressure according to an increase in the number of film layers in rice straw bales, which account for 74% of the total bulky feed supply in Korea. Methods: A model with the shape of an actual bale was fabricated to analyze the distribution of surface pressure in bale wrapping, and the pressure was measured. Experiments were conducted to analyze the pressure using eight different layer numbers (2, 4, 6, 8 10, 12, 14, and 16 layers) at five wrapping speeds (27, 29, 31, 33, and 35 rpm). Results: The maximum pressure applied to a circular bale by the film occurred at the center of the end of the bale, whereas the minimum pressure occurred at the center of the bale side. An extreme value ratio between the minimum and maximum pressures was distributed as 8.5-56.6%, which was improved with an increase in rotation speed. The an uneven pressure distribution occurred because the number of film overlaps was 8.24-times greater at the center of the bale's end than at the center of the ba le side. At a level 5 rotation speed, the minimum pressure was $P_{LV5-M1}=0.0625{\sigma}^2+36.173{\sigma}-36.753$ ($R^2=0.9845$) at $M_1$, and the maximum pressure was $P_{LV5-M6}=5.5552{\sigma}^2+41.05{\sigma}-39.071$ at $M_2$, revealing a correlation of $R^2=0.9983$. Conclusions: To replace four layers with six layers, 2-4 layers were added only to the side of the bale, and the minimum pressure at $M_1$ was then improved from that at four layers to that at six layers, and the amount of film consumed for 4-6 layers was reduced by 84.6%.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2007년 추계학술발표대회 개요집
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• pp.100-102
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• 2007

• 기술혁신학회지
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• 제7권3호
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• pp.641-656
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• 2004

L Company is producing the second sept pin, Shadow Mask which is the chief part of CRT in W, Monitor. Inside of the CRT pan, Shadow Mask leads the electronic beam to express the three primary colors; red, green, blue, and it is the core part to embody the colors. In the etching process, it produces this part with manufacturing by eroding the iron chloride. Even though the iron chloride is harmless to human body. it is necessary to diminish the amount of it on the view of preservation of environment. In addition, by studying the method of the dispossed liquid process, cutting down the manufacturing cost is a necessary task on the aspect of reconsideration of competitive business. This study shows the case that through the six sigma innovation activity, it reforms the following the former processing flow, and it reduces the amount of it by improving the efficiency of the iron chloride. By rationalization of the standard requirement cooperative company, it could cut down the manufacturing cost in the cooperative company, so it could promote the common profits.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.353-358
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• 2003

최근 건설공사의 효율화 및 생산성 향상을 위한 다각적인 노력이 시도되고 있으며 이의 일환으로 린건설 및 JIT등의 혁신적인 프로세스 개선기법 등이 도입되고 입다. 하지만, 일회적이고 장기성을 갖는 건설산업의 특수성을 고려하였을 때 건설공사의 효율화에 대한 개념 및 활용대상이 개개인의 시각에 따라 다양해 질 수밖에 없으며 세부작업단위의 효율화에 대한 목표 및 개선수준의 설정도 구체성이 미흡하여 그동안 연구되었던 효율화 기법의 성과가 가시화되지 못하고 있는 실정이다. 건설공사의 효율화를 쥐해서는 세부단위작업별로 달성목표를 정량화하여 프로세스 개선활동을 펼칠 수 있는 여건을 마련하는 것이 무엇보다 중요하다. 본 연구에서는 이와 같은 목표아래 최근 제조업분야에서 전개되고 있는 전사적인 경영혁신기법인 6시그마 활동을 건설공사 효율화개념에 접목시킴으로서 건설공사 프로세스 개선 및 생산성향상에 대한 합리적 방안을 모색하고자 한다. 이를 위하여 본 논문에서는 기존의 프로세스 개선기법들을 비교 고찰하고 6시그마 개념 적용의 당위성과 건설공사의 6시그마 적용을 위한 기본 추진전략을 제시한다. 아울러, 표준적인 세부단위작업 사례분석을 통해 6시그마 개념을 적용하여 기존의 프로세스를 개선해 봄으로써, 건설자원 등의 버퍼(buffer) 관리 등에 있어서 개선목표 설정을 시그마 개념에 기반하여 제시하고 이러한 시그마 수준의 향상에 따라 건설공사의 성과가 향상될 수 있음을 시뮬레이션을 통하여 검증하고자 한다.

• 품질경영학회지
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• 제32권3호
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• pp.216-233
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• 2004

The real estate management includes not only the brokerage, property management, development, investment and consulting which are related to real estate handling, but also the human resources who deal with the real estate business. The level of management quality of Korean real estate business is rather poor. This paper deals with management innovation of real estate management using Six Sigma methodology The main focus of this Paper is to develop strategy Planning, and is to select critical success factors for each strategy to make an advanced management system for real estate business. This paper is a case study, and the target company for this innovation is ERA-Korea Company. Seven strategies are proposed, and for each strategy several critical success factors are suggested. Through this case study, the authors hope that a management quality model for real estate business is proposed, and an improved management method can be adopted in the other real estate companies.