Volume 5, Issue 7 (2008) | American Journal of Applied Sciences

Low-Noise High-Accuracy TOF Laser Range Finder

Shahram Mohammad Nejad — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.755.762

This paper presents a new low-noise high-accuracy laser range finder based on the Time-Of-Flight (TOF) method. A Q-switched Nd:YAG laser at 1064 nm as a source and a SLIK avalanche photodiode as a det...

Short-Term and Medium-Term Load Forecasting for Jordan's Power System

I. Badran — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.763.768

Several electric power companies are now forecasting electric loads based on conventional methods. However, since the relationship between loads and factors influencing these loads is nonlinear, it is...

Direct Model Reference Adaptive Controller Based-On Neural-Fuzzy Techniques for Nonlinear Dynamical Systems

Hafizah Husain — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.769.776

This paper presents a direct neural-fuzzy-based Model Reference Adaptive Controller (MRAC) for nonlinear dynamical systems with unknown parameters. The two-phase learning is implemented to perform str...

A Password-Based Key Derivation Algorithm Using the KBRP Method

Shakir M. Hussain — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.777.782

This study presents a new efficient password-based strong key derivation algorithm using the key based random permutation the KBRP method. The algorithm consists of five steps, the first three steps a...

Design and Development of Decision Making System Using Fuzzy Analytic Hierarchy Process

Chin Wen Cheong — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.783.787

This article aims to develop a fuzzy Multicriteria Decision Making (MCDM) tool that equips with Analytic Hierarchy Process (AHP) framework to help users in semi-structured and unstructured decision ma...

Configurable Multirate Filter Banks

Ali Al-Haj — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.788.797

Multimedia communications require efficient and real-time implementations of multirate digital signal processing systems. The backbone structures of multirate systems are digital multirate filter ban...

Assessment of Suspended Sediments Concentration in Surface Waters, Using Modis Images

Mobasheri Mohammad Reza — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.798.804

Remote sensing from air-borne and space-borne sensors have proved to be a useful method for Suspended Sediment Concentration (SSC) estimation as it provides an instantaneous and synoptic view of suspe...

A Control Strategy for Photovoltaic-Solid Polymer Electrolysis System Based on Surface Temperature of PV Panel

Riza Muhida — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.805.810

Processes to produce hydrogen from solar photovoltaic powered water electrolysis using solid polymer electrolysis are reported. An alternative control of maximum power point tracking method based on a...

Homotopy Perturbation Method and Variational Iteration Method for Solving Zakharov-Kuznetsov Equation

B. Ganjavi — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.811.817

This article investigates a nonlinear dispersive Zakharov-Kuznetsov ZK (3, 3, 3) equation. This equation governs the behavior of weakly nonlinear ion-acoustic waves in plasma comprising cold ions and ...

Robust Decentralized Load Frequency Control Using Multi Variable QFT Method in Deregulated Power Systems

Seyed Abbas Taher — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.818.828

The Load Frequency Control problem has been a major subject in electrical power system design/operation and is becoming more significant recently with increasing size, changing structure and complexi...

A Dynamic Resource Synchronizer Mutual Exclusion Algorithm for Wired/Wireless Distributed Systems

Ahmed Sharieh — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.829.834

A mobile host has small memory, relatively slow processor, low power batteries, and communicate over low bandwidth wireless communication links. Existing mutual exclusion algorithms for distributed sy...

A Multi-Objective HPSO Algorithm Approach for Optimally Location of UPFC in Deregulated Power Systems

Seyed Abbas Taher — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.835.843

This paper presents the application of hybrid particle swarm optimization technique to find optimal location of unified power flow controller to achieve optimal power flow. Objective function in the O...

Fuzzy Assignment Procedure based on Categories' Boundaries

George Rigopoulos — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.844.851

We presented a procedure for multicriteria assignment problems. Assignment to a category is based on the comparison between an action and categories’s boundaries. Boundary is represented by the leas...

New Analysis for The FGM Thick Cylinders Under Combined Pressure and Temperature Loading

K. Abrinia — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.852.859

An analytical solution for computing the radial and circumferential stresses in a FGM thick cylindrical vessel under the influence of internal pressure and temperature is presented in this paper. It h...

The Role of R and D and Business Performance in Korean Electronics Companies

Woosik Kim — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.860.865

This study examines the electronics industry in Korea with two points of view; management activity and research and development (R and D) activity for reviewing effectiveness and analyzes effects of R...

Experimental Investigation of Single Pass, Double Duct Photovoltaic Thermal (PV/T) Air Collector with CPC and Fins

M. Ebrahim Ali Alfegi — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.866.871

The temperature of photovoltaic modules increases when it absorbs solar radiation, causing a decrease in efficiency. This undesirable effect can be partially avoided by applying a heat recovery unit ...

Quality of Life in Hematologic Cancer Patients: A Randomized Clinical Trial of Low Dose Naltrexone Versus Placebo

Mohammad Ali Seifrabiei — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.872.875

This study aimed to investigate its effect on hematologic cancer patients. This was a randomized controlled trial assessing quality of life in patients with hematologic malignancies from a single inst...

Effects of Creative, Educational Drama Activities on Developing Oral Skills in Primary School Children

Abdulhak Halim Ulaş — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.876.880

A research study was carried out to determine whether native language teaching courses that utilize creative drama activities are more efficient in developing oral communication skills in primary scho...

On Studying Spatial Patterns and Association Between these Patterns of Mortality and Prosperity in Malaysia

Faisal G. Khamis — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.881.890

In this study, we examined the geographical distribution (the spatial structure) of mortality and prosperity in Malaysia. In addition we proposed an approach to investigate the association between clu...

Hydrochemical Differentiation of Salinisation Process of the Water in Endoreic Semi-Arid Basin: Case of RÃ©mila Basin, Algeria

Houha Belgacem — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.891.895

The aim of this study is to determine and treat a hierarchical basis of the various mechanisms responsible for the space variation of the water quality in a endoreic semi-arid basin. The water chemist...

DSP-128:Stream Cipher Based On Discrete Log Problem And Polynomial Arithmetic

Khaled M. Suwais — 2008-07-31

American Journal of Applied Sciences, Published online: 31 July 2008; doi:10.3844/ajassp.2008.896.904

DSP-128 is a new multithreaded stream cipher based on the intractability of the Discrete Logarithm Problem (DLP) with key size of 128-bit. The design of DSP-128 is divided into three stages: Initializ...