평면선형의 편구배에 대한 안전성 검토 : 고속의 도시부 가로를 중심으로

임채문,박준,홍익상,박영환 대구대학교 과학기술연구소 1999 科學技術硏究 Vol.6 No.1

This study investigates fitness of horizontal alinement design elements that has been used in Korea. Those elements are analyzed in consideration of road environment, drivers' characteristics, and traffic condition. In addition, reformed superelevation formula is produced to be fit to the conditions in Korea by considering horizontal alinement design elements on the base of 'AASHTO'. The results are summarized as follow 1. According to drivers' cognition analyzed by Factor analysis, drivers regard that road safety and horizontal alinement elements are the most important facts. 2. Superelevation value which is produced from radius of road curve in research area is shorter than standard superelevation value. Therefore, we should revise and supplement the standard superelevation in aspect of drivers' safety. 3. Superelevation value analyzed by 85 percentile running speed shows higher value than critical superelevation value used in Korea. So, we should upgrade the critical superelevation value.

가로특성에 따른 용량 및 속도 Model 구축

임채문,공창환,이영우,홍익상 大邱大學校 科學技術硏究所 1998 科學技術硏究 Vol.5 No.3

The purpose of this study is to develop a simulation model to estimate the capacity and the speed, which are applicable in the urban street transportation planning, for interrupted traffic flow which is influenced by the signalized intersection, and to compare the model with the existinw models.

효과적인 FMEA 실시를 위한 준비

임익성 남서울대학교 2005 남서울대학교 논문집 Vol.11 No.2

FMEA(Failure Mode & Effect Analysis) has been widely used in various types of industry. Recently its effectiveness had been proven after it was introduced to the QS 9000 requirement. However, still the effectiveness of FMEA is quite unclear because it is difficult to measure it This research suggest the preparation for the effective FMEA implementation.

서비스업의 품질개선 기법에 관한 연구

임익성 남서울대학교 2008 남서울대학교 논문집 Vol.14 No.2

As the percentage of the service industry is increased, an importance of service quality is getting more interested in. A numerous quality improvement technique could be applied to the service industry. In this paper, the service improvement model which combines the blueprint, FMEA, and FTA is presented. In addition, this paper explains how and when to use each different tools or technique. Advantage of this suggested approach is expecially useful when identification of the service failure is difficult or is related to human errors. Key Words : FMEA, FTA, Human errors, Blue print

내구성 분석과 관련 기법들

임익성 남서울대학교 2008 남서울대학교 논문집 Vol.14 No.2

Reliability technique has been widely used in product life cycle process in order to reduce failure rate and/or extend product life. Understanding the importance of concept of the reliability and durability plays vital role in design engineering process. The purpose of this research is to review the both reliability program and durability analysis techniques which is used in product design phase. The procedures for the reliability program is explained followed by detailed steps of the dormancy analysis for better understanding. Key Words : reliability, durability, dormancy, failure rate

담낭종양에서 CD24의 역할

임성철,이용,김동출,강길,변익건,박정희,최석민 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.2

CD24 is a small heavily glycosylated glycosylphosphatidylinosito-linked cell surface protein, which is expressed in hematologic malignancies as well as in a large variety of solid tumors, It appears to function as a ligand of PUselectin, an adhesion molecule that is present in activated platelets and endothelial cells. The authors aimed to evaluate CD24 protein expression in adenoma and adenocarcinoma of gallbladder to correlate to clinicopathologic data. The staining- was evaluated as stainability (negative, weak-, moderate-, strong-positive) and staining' patterns (membranous vs. intracytoplasmic) for statistical analysis. A highly significant association of cytoplasmic CD24 expression with adenocarcinoma compared to the adenoma of gallbladder was demonstrated. The present study demonstrates that CD24 was abundantly expressed on adenocarcinoma rather than on adenoma, but it was not statistically significant, Interrelation between the stainability or intracytoplasmic staining of CD24 and lymph node metastasis was not statistically significant. The authors conclude that CD24 is involved in tumorigenesis of gallbladder mucosa and intracytoplasmic expression of CD24 is an important molecular marker for malignant transformation.

여행속도에 따른 Q-V관계식 산정에 관한 연구

임채문,정우영,공창환,홍익상 대구대학교 과학기술연구소 1995 科學技術硏究 Vol.2 No.1

The purpose of this study is to estimate a suitable traveling speed model based on using the traffic data collected by test-vehicle traveling method and the data on road geometric and operating characteristics. The conclusions of this study are as follows. In travel speed model(Q-V), regression model (V=9.635+0.0169L - 0.00045Q - 2.1926N, R²=0.76) the important independent variables are speed is closely related with distance, traffic volume and the number of traffic lane, form the result of speed-flow regression analysis, link travel speeds are influenced by link distance, traffic volume, and the number of lanes. As expectedly by the most significant factor influencing link travel speeds. The changing of traveling speed according to section distance is appeared large. According to the result of analysis of travel speed and traffic density model(Q-K), as according the that density increases the travel speed is decreases, on the other hand travel speed increases, the density decreases. The speed equation (u=68.72e^(-k/22.6)) is derived by form the Q-K relationships founded form the study, traffic volume increases as traffic speed increase up to the critical traffic density. If traffic volume decreases when traffic density is abduce the critical traffic density. Using Q-V equation estimated by regression analysis and Q-K equation estimated by density, Traffic value test was accomplished by computer program(TRANPLAN). There were difference between too test, however, the deviation was small. On case of using program, the application extent we considered, is between 25Km/h - 60Km/h. Traffic volumes obtained from TRANPLAN are governably 10% larger than traffic volume estimated form Q-K model. However the difference of the critical traffic density bow Q-K model and TRANPLAN, are relatively small. It is desirable to reduce traffic volume by 0.7∼9% over all, speed range when TRAPLAN is applied in Q-K relationship.

재제조와 중소기업형 환경보고서 가이드라인에 관한 연구

임익성,장무경 남서울대학교 2010 남서울대학교 논문집 Vol.16 No.1-1

환경에 대한 관심이 점점 높아지면서 국제표준화기구에서 제정한 환경경영에 관한 국제규격인 ISO14001을 인증을 받는 기업들이 증가하고 있다. 본 연구에서는 우리나라 환경경영보고서의 현 주소를 파악한 후 대기업과 중소기업의 환경경영보고서 가이드라인의 차이점을 살펴보았다. 우리나라 중소기업의 환경경영보고서는 기업의 실정을 감안하여 대기업과 달리 약화되어 차별화되어 있다. 환경경영에 기여할 수 있는 커다란 축의 하나는 재제조 및 재활용 이기 때문에 이것들에 대한 개념 및 현 주소를 살펴보았다. 본 연구의 목적은 환경경영가이드라인의 현 상태를 정리해서 현재 전세계적으로 추진되고 있는 그린혁명과 연계하여 환경경영에 기여할 수 있는 방향을 찾는것이며, 또한 향 후 우리나라 기업의 환경경영을 정량적으로 평가 및 기여할 수 있는 그린비율의 새로운 측도 방향을 제시하였다. Key Words : Envrionmental Report Guideline, Green Ratio, ISO14001, Remanufacturing

PS 시스템구축 및 실행절차에 관한 연구

임익성 남서울대학교 2005 남서울대학교 논문집 Vol.11 No.1

Most of the product contains the potential risk within it. Negligence of a Safety Program could cause a serious financial harm to the business as well as legal aspect. This research reviews the Product Safety Program Construction Methodologies and procedure in order to protect the potential risk environment.

식품업종의 품질 향상 방안 연구

임익성 남서울대학교 2005 남서울대학교 논문집 Vol.11 No.2

Quality improvement methodology for the food industry, whose size are small compare to the other manufacturing industry, is proposed. Research is based on the HACCP 7 steps followed by format tables in order to find out the possible potential hazard that might exist during the purchase of raw materials through the manufacturing process.