In this paper, we present a mechanism to fly a swarm of UAVs with the aim of establishing a wireless backbone over a pre-specified area. The backbone is aimed at connecting intermittent wireless-signal-emitting mobile ground stations (GSs), comprising rescue teams and survivors. To this end, we present a decentralized behavior-based cooperative control architecture to search for unknown GSs and...

In this paper, an (s, S) policy is determined by using a simulation-optimization approach for periodic review inventory system at pharmacy department of major hospital in Thailand. The simulation, which imitates the behavior, constructed on spreadsheet, while cyclic coordinate method with golden section search adopted as optimization algorithm. Solutions policy's parameters from algorithm are e...

Fagan inspections are a structured review of software development documents that consists of individual preparation, a meeting and rework by the author of the document. The meeting is used to log the defects found in preparation and to search for more defects. The effectiveness and efficiency of the meeting is often low as compared to that of the preparation. This paper describes the results of...

This paper is concerned with the problem of the asymptotic stability of the characteristic modelbased golden-section control law for multi-input and multi-output linear systems. First, by choosing a set of polynomial matrices of the objective function of the generalized least-square control, we prove that the control law of the generalized least square can become the characteristic model-based ...

We consider the discrete time Kalman and Lainiotis filters for multidimensional stochastic dynamic systems and investigate the relation between the golden section, the Fibonacci sequence and the parameters of the filters. Necessary and sufficient conditions for the existence of this relation are obtained through the associated Riccati equations. A conditional relation between the golden section...

Different methods are available for simultaneous optimization of cross-section, topology and geometry of truss structures. Since the search space for this problem is very large, the probability of falling in local optimum is considerably high. On the other hand, different types of design variables (continuous and discrete) lead to some difficulties in the process of optimization. In this articl...

A blind dereverberation method based on power spectral subtraction (SS) using a multi-channel least mean squares algorithm was previously proposed. The results of isolated word speech recognition experiments showed that this method achieved significant improvement over conventional cepstral mean normalization (CMN). In this paper, we propose a blind dereverberation method based on generalized s...

The generation of natural and photorealistic images in computer graphics, normally make use of a well known method called ray tracing. Ray tracing is being adopted as a primary image rendering method in the research community for the last few years. With the advent of todays high speed processors, the method has received much attention over the last decade. Modern power of GPUs/CPUs and the acc...