• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2000.11b
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• pp.131-134
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• 2000

본 논문에서는 스테레오 좌.우 영상간의 휘도 불균형 보정에 관한 연구를 수행하였다. 좌영상과 우영상의 관계를 선형관계 $(I_L = aI_R +b)$로서 가정하고 휘도 불균형을 보정한 기존 알고리듬(global balancing)의 문제점을 분석하였다. 또한 이러한 문제점을 해결하기 위한 방법으로 두 가지 방법을 제안하는데 히스토그램 균일화를 통한 방법과 영상의 국부적 특징을 이용하여 선형변환을 적용하는 방법(local balancing)이 보다 정확한 변이벡터를 찾는 전처리 과정임을 모의실험을 통해 검증하였다.

• 제어로봇시스템학회:학술대회논문집
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• 1993.10a
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• pp.1123-1128
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• 1993

In this paper, utilizing the line balancing algorithm proposed to deal with various situations of automated assembly line, the optimal solution can be derived by the branch and bound method of analysis. By the application of line balancing algorithm to telephone assembly line, thoughput is improved by 3.38%. Therefore, in the proposed line, blicking phenomena were reduced and smooth line-flow was achieved, and uniform distribution of utilization rate of each machine is obtained.

• Journal of information and communication convergence engineering
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• v.7 no.2
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• pp.148-151
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• 2009

We consider the problem of optimizing the performance of a system with resources shared by non-cooperative users. The worst-cast ratio between the cost of a Nash equilibrium and the optimal cost, called Price of Anarchy, is investigated. It measures the performance degradation due to the users' selfish behavior. As the objective function of the optimization problem, we are concerned in a load balancing measure, which is different from that used in the previous works. Also we consider the Stackelberg scheduling which can assign a fraction of the users to resources while the remaining users are free to act in a selfish manner.

• Proceedings of the Korean Information Science Society Conference
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• 2000.04a
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• pp.151-153
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• 2000

본 논문은 분산 서버 시스템을 위한 Load Balancing Architecture를 제안한다. 이 구조는 기존에 구현된 클라이언트/서버 시스템을 그대로 사용하면서 규모를 확장할 수 있는 특징을 가지고 있다. Load Balancing Service가 동작하기 위해서는 서버의 성능과 구성상태에 대한 정보를 주고받는 것이 필요하다. 이를 위하여 본 논문에서는 Load Balacing Information Transfer Protocol을 제시한다. 본 논문이 제시하는 구조는 DCOM 및 EJB 등의 Component 서버에서도 사용되어서 확장성을 가지게 할 수 있다.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.30 no.3
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• pp.94-102
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• 2007

In this paper, we consider a line balancing problem in hybrid flowshops where each workstation has identical parallel machines. The number of machines in each workstation is determined in ways of satisfying pre-specified throughput rate of the system. To minimize the total number of machines in the systems, we propose five heuristic methods and one simulated annealing method. Extensive computational experiments found the superiorities of two heuristic methods and the meta-heuristic.

• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.243-246
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• 2002

In this paper, an advanced load balancing algorithm in nth order Hypercube distributed system has been proposed. The new algorithm uses centralized load-balancing to avoid blocking phenomenon and processor thrashing, and shows the results which makes loads to approach average value of loads. The new algorithm os compared with several other algorithm and it shows a merit in cost function value.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04d
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• pp.289-291
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• 2003

Peer-to-Peer Network에서의 object위치 정보의 배치 및 라우팅 방법인 Chord시스템은 node ID와 object ID생성에 있어서 SHA-1과 같은 해쉬 함수를 사용한다. Chord object위치 정보 관리에 있어서 해쉬에 의해 저절로 load-balancing을 기대하나 실험에 의하면 노드별 load에는 상당한 편차가 있음이 나타난다. 그러므로 이 논문에서는 각 node간 협력을 통하여 보다 효과적인 load-balancing을 제공하는 CLCS 기법을 제안한다.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2009.10a
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• pp.391-394
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• 2009

Asymmetrical and unbalanced features such as rotor blade of helicopter, actuator of hard-disk in personal computer are usually manufactured with composite materials. In this case, mass distributions and center of gravity of the parts are important because of their static balancing. Therefore in the manufacturing processes, it is needed to check out the exact data of weight and gravity center. In this study, it has been studied experimentally the balancing of laminated rotor blade by using multiple-point weighing method and lab-view system.

• ETRI Journal
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• v.29 no.2
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• pp.255-257
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• 2007

We propose an improved selective randomized load balancing (ISRLB) robust scheme under the hose uncertainty model for a special double-hop routing network architecture. The ISRLB architecture maintains the resilience properties of Valiant's load balancing and reduces the network cost/propagation delay in all other robust routing schemes.

• 제어로봇시스템학회:학술대회논문집
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• 1993.10b
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• pp.391-394
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• 1993

A new approach using a Hopfield type neural network to solve line balancing problems for manufacturing planning is proposed. The energy function of the network to evaluate solutions is composed of three terms;(a) an operation should be processed at one and only one workstation, (b) the precedence-relationship between two operations shoud be satisfied, and (c) the cycle-time of operations should be minimized. It is shown that the network can solve the line balancing problems but not always because of the difficulty to keep the precedence-relationship. Therefore, a method to keep the precedence-relationship by software logic is proposed and it is verified that the line-balancing prblems can be solved with high probability.