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일반적 흐름생산방식에 있어서의 동적 작업 배정에 관한 연구
안명호,이종태 동국대학교 산업기술연구원 1997 산업기술논문집 Vol.9 No.-
A scheduling problem can be characterized as predictive or reactive. Predictive scheduling deals with problems with deterministic process times and routes. On the other hand, reactive scheduling assumes the problems process times and routes as given in a dynamic environment. In this paper, the general dynamic n jobs and M machines flow shop scheduling problem is considered where each job is processed on machines by its own sequence but all the jobs have the same direction of work flow. Jobs are released by an interarrival distribution and have random processing times. A heuristic dynamic dispatching algorithm is presented, where the primal target is to minimize the idle time. Specifically, a waiting job in a station has the first dispatching priority if it can minimize the potential idle time of the next machines in the process sequences of the job and another job which is in the same station and is a candidate for the next dispatching. The presented algorithm has been compared with some priority dispatching algorithm by simulation, varing number of machines and queue capacity.
한국 자동차산업의 특허 출원과 가격 차별화가 산업내무역에 미치는 영향
안명호,최재영 한국통상정보학회 2023 통상정보연구 Vol.25 No.4
This study examines the impact of patent applications and price discrimination on intra-industry trade in the automotive industry across 45 countries, encompassing Korea and OECD members. To address this, 237 items, classified by the customs office under the HS code at the 6-digit level, were categorized into vehicles, electrical and electronic, and other categories. Panel fixed-effects and random-effects models were employed. The findings suggest that patent applications in the vehicles sector exert a negligible influence on intra-industry trade. Conversely, the electrical and electronic sector, gaining prominence due to the proliferation of trends in autonomous driving and electrification, demonstrates a positive effect on intra-industry trade. This is attributed to the growing global demand for Korean products and the expanded use of imported goods at a level equivalent to domestic products to satisfy the diverse demands of domestic customers. To sustain and enhance competitiveness in the electrical and electronic sector, a concerted effort is essential, encompassing not only corporate-level strategic decisions but also governmental policy endeavors, including legal and regulatory reforms and the establishment of integrated governance systems.