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이내현,오영일,이성열 대한기계학회 1994 대한기계학회논문집 Vol.18 No.12
To theoretically predict knock occurrence in S. I. engine as a function of engine design and operating parameters, transient local temperature and pressure, mixture density of flame front in combustion period are calculated. We next determined normal combustion period and auto ignition period of end gas using the prediction method on occurrence of spark knock which we suggested. We predict knock occurrence in S. I. engine by comparing consecutively normal combustion period with the auto ignition period of end gas in combustion period. Engine design and operating parameters such as compression ratio, engine speed, spark timing, inlet temperature and pressure are taken into account in this calculations. The predicted result are well matched with the experimental results in turbocharged engine. Therefore, this method will provide the systematic guideline for designing engines in view of knocking limits.
이내형 한국산업경영시스템학회 1979 공업경영논총 Vol.2 No.2
This thesis aimed at studying the development of the engineering manpower in industrial society today. In order to achieve the purpose, we must to be supported by its training to be based on the continuous government planning for the development of manpower It is proper that strategic management should be conducted for the vocational engineer training. In the view of the present situation, we dare assert that the following management should be followed ; 1. We believe that the motives of the engineer will be caused by the law of official rearing, 2. For the manager's concern, it is need for the system of accounting in the manpower to be established, 3. For the efficiency each other, it is urgent to take a trianqular position for the confidence through the value of rationalism above all mentioned words are concerned with having high morale and a normal act for the engineer.
아파트단지에서 아파트 층별 및 배치구조에 따른 도로교통소음 평가
이내현,선우영,조기철,조경덕,조일형,Lee Nae-Hyun,Sun Woo-Young,Cho Ki-Chul,Zoh Kyung-Duk,Cho Il-Young 한국환경보건학회 2006 한국환경보건학회지 Vol.32 No.2
The road traffic noise has been increasing broader effects on urban areas as well as rural areas because of rapidly increasing traffic volume and newly-constructed roads. 10 sites in building development areas were selected and the noise levels were measured by the apartment floors and by the various block plans of apartment complex. The results showed that the highest traffic noise level was obtained at the 5 and 7 floors on the apartment floors. On the basis of 7 floor with the highest level, the correction coefficient obtained from noise reduction by each floor and measurement point was -5.54 dB(A)(1st floors), -0.96 dB(A)(3rd floors), -0.38 dB(A)(5th floors), 0.00 dB(A)(7th floors), -1.98 dB(A)(l0th floors), -3.10 dB(A)(13th floors), -3.45 dB(A)(15th floors). The level of road traffic noise in the arrangement construction of right angle was about 3.0 dB(A) at N-4 point and 2.1 dB(A) at N-6 point lower than that of a plan figure, respectively. The results suggested that application of correction coefficient obtained by the apartment floor and by the arrangement construction can be improved in road traffic noise.
동일수준 조달을 고려한 다단계 분배시스템 운영에 관한 연구
이내형(Nae-Hyung Lee) 한국컴퓨터정보학회 2001 韓國컴퓨터情報學會論文誌 Vol.6 No.4
물적분배시스템의 운영에 있어서 발생하는 품절에 대한 대처방법으로서 동일단계의 측면 재공급 허용을 통한 시스템 운영방안을 제안함으로써 최적물류비용을 갖는 물적분배시스템을 설계하였으며, 또한 본 연구의 고려 대상인 중앙분배센터와 지역분배센터 사이의 수송비용관계, 지역분배센터 상호간 보충허용하의 물적분배시스템 운영에 관한 연구를 통하여 다중공급원 알고리즘을 개발하고, 기존의 단일 공급원가정하의 분배시스템과의 총운용비용에 대한 비교분석을 통하여 본 연구에서 개발된 알고리즘의 효율성을 입증하고, 또한 수치 예를 통하여 본 연구의 타당성을 검토하였다. Many of these studies represent a large scale distribution network with a unified formulation by using defined symbols. This can be evaluated as a valuable progress toward accomplishing of a systematic approach the area of distribution network. Unfortunately, transportation problem and inventory policy applied in these studies have an assumption of using an unique supplier for calculating the transportation cost among each distribution echelon. This assumption can cause many problems such that transportation problem is assumed as linear problem, too many number of distribution center are allowed to operate and many more.<br/> In order to overcome above unrealistic problems, we developed an algorithm of responding to customers' demand under the refill allowance of same level supply as a new constructional method of inventory distribution network. When backorders are happened in regional distribution center, this algorithm allows transferring finished goods to customer directly from vicinal Regional distribution center instead of existing central distribution center for quick response.