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물류시설 수요조사에 관한 연구 (광명물류시설을 중심으로)
김태석,윤의식,강경식 대한안전경영과학회 2007 대한안전경영과학회 학술대회논문집 Vol.2007 No.04
최적의 효율적이고 경쟁력 있는 물류시설을 조성하기 위해 수요업체(화주)를 대상으로 입지, 임대면적, 임대조건, 임대가격, 건물의 배치, 건물의 구조, 교통처리계획, 부대시설 등에 관한 다양한 의견을 사전에 수렴, 물류시설 건립에 반영할 필요성이 대두되고 있다. 조사를 위한 시간과 비용이 과대하게 발생하는데 이러한 비효율적인 조사를 보다 효율적으로 정리하고 더 나아가 투자자의 신속하고 정확한 의사결정을 지원하기 위해서 간단하게 몇 가지의 요소만으로 사전에 진단하고 정확한 의사결정을 할 수 있는 도구의 필요성이 대두된다. 즉, 기존에는 상기에서 언급한 '수요자 접근법'을 이용하여 진행하여 왔는데, 거점적인 측면과 시설적인 측면의 요소를 반영한 새로운 "요인비교법"을 도출하였다.
Design of Network-based Game using the GoF Design Patterns
김태석,김종수 한국멀티미디어학회 2006 멀티미디어학회논문지 Vol.9 No.6
In the network-based game where it uses the Internet infrastructure, the implementation is possible with the various methods. Such Applications are developed in the multi-tired architecture. There are many cases for the server to be separated from the hardware or the software. In this case, a lot of applications make the distributed process possible and are made as the multi-tiered architecture to develop the reusability of the existing software module. Especially, it is mostly general to separate for the case of a database server to a new tier. One of the important points of multi-tiered server side applications is security and because of this, it is difficult to share the related data about the design skill. Using design patterns, it gives help in reusing the existing written-code for the design of the game that needs a lot of money and time. Design Patterns are related to the software reuse. For the development of more efficient games, if well-defined design patterns are provided to the developers, then it would make more easy advanced game API and make possible the framework for the game development based on the API.Through the analysis of the general network-based game currently servicing in the Internet, in this paper, we discuss how to implement a business logic tier using database system among the server side architectures. The main objective of this article is to show an efficient APIs(Application Programming Interfaces) design method which can be used to manage the data that must be saved to the database system among the packets that client/server have to be exchange.
Nonlocal Spin Transport in Lateral Spin Valves with Multiple Ferromagnetic Electrodes
김태석,이현우,이병찬 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.2
We study the nonlocal spin transport in a lateral spin valve with multiple ferromagnetic (FM) electrodes. When two current-injecting and two spin current-detecting electrodes are all ferro-magnetic, the number of possible nonlocal spin signal states is four at maximum. In reality, this number is reduced,depending on the inter-probe distance and the relative magnitudes of the spin resistances. Our theoretical results are in agreement with recent experiments of spin injection into anAlisland,a carbon nanotube,and graphene.