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Propagation of uniform and profiled electromagnetic beams through apertures with binary amplitude transmission and random phase distributions at the far field (Fraunhofer limit) is investigated, and simulation results based on two approaches, (a) using the Fresnel-Kirchhoff diffraction integral directly, and (b) using a split step propagation concept whereby the aperture or phase screen is placed...
Many face recognition techniques have been developed during the past decades but the problem remains challenging, especially recognizing non-biological entities or avatars. Local Binary Pattern (LBP) method is one of these techniques which has shown its superiority in recognizing faces. The original LBP operator mainly thresholds pixels in a specific predetermined window based on the gray value of...
In this research, an optimization of monthly tilt angle for solar panels for five main sites in Malaysia is conducted. The optimization method is based on the Liu and Jordan model for solar energy incident on a tilt surface. As a result, applying the monthly optimum tilt angle, increases the collected yields of the PV module/array in Kuala Lumpur, Johor Bharu, Ipoh, Kuching and Alor Setar by 5.03%,...
Application of the viable technologies in the new millennium has discovered successfulness in reducing undesirable problems related to power system operation. The advent of computational intelligence methods are mostly assisting to achieve high efficiency for controlling the changing of sophisticated process flow in industrials. Congestion problem in power system is a crucial issue as it leads to...
This article proposes a discrete particle swarm optimization (DPSO) for solution of the shortest path problem (SPP). The proposed DPSO adopts a new solution mapping which incorporates a graph decomposition and random selection of priority value. The purpose of this mapping is to reduce the searching space of the particles, leading to a better solution. Detailed descriptions of the new solution and...
Capacity Benefit Margin (CBM) plays an important role in available transfer capability (ATC) computation. CBM is a transmission capability margin reserved by load serving entities to meet the generation reliability requirements. In recent years, there are several methods developed to compute the CBM. However, the methodologies do not consider the reliability of an interconnected system in the CBM...
In recent years, there are several methods developed to compute the CBM. However, the methodologies do not consider the reliability of an interconnected system in the CBM determination. This paper presents the computation of CBM considering the reliability of an interconnected system. It is important to consider the reliability of an interconnected system in the CBM determination because the interconnected...
This paper presents the design and construction of voltage acceptability curves for fluorescent lighting systems. It is derived from mathematical representation of actual light output variations of fluorescent lamps (FLs) during voltage sags and a predefined malfunction criterion called the light standard. Light standard may be thought of a standard based on a minimum acceptable light output, below...
In component-based software systems (CBSSs), software designers need to decide about decomposition level (level of granularity) which involves component sizes and the number of components. In these systems, decomposition level is important due to its major impacts on reliability. However, the basis to choose the decomposition level of a CBSS has not been addressed adequately in the existing research...
A signature is the writerpsilas self representation. It contains many features; one of it is its baseline. The information contained in the baseline is known to be used as a precondition for subsequent handwriting or signature recognition algorithms and many researches regarding it has been done using off-line data. This research focuses on identifying the signature baseline by applying the concept...
This paper proposed a fast and accurate computational method to determine the available transfer capability (ATC) in a power system. The methodology utilizes the curve fitting technique so-called as the cubic-spline interpolation technique that is incorporated into the Ralston's method in order to provide fast and accurate estimation of ATC. The Ralston's method is used to predict the two trajectory...
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