Volume 4, Issue 7 (2007) | American Journal of Applied Sciences

Feedback of the Input Voltage in FDTC Control Using a Three-Level NPC-VSI

R. Zaimeddine — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.417.425

A new control structure for sensorless induction machine dedicated to electrical drives using a three-level voltage source inverter VSI-NPC is completely analysed. The amplitude and the rotating veloc...

Design of a Symmetrical Microstrip Bandpass Filter for S-Band Frequency Range

Mohd Fadzil Ain — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.426.429

A new type of microstrip bandpass filter is presented with a center frequency operation at 2.5GHz which lies in the S-band frequency range. The filter is designed to be much smaller compared to the sa...

Comparative Study by Electrochemical Impedance Spectroscopy (EIS) On The Corrosion Resistance of Industrial and Laboratory Zinc Coatings

Y. Hamlaoui — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.430.438

In this work, corrosion monitoring of Zn-based coatings is investigated through potentiodynamic and electrochemical impedance spectroscopy (EIS) methods. The first part of the study is devoted to galv...

Approximate Analytical Solutions For Time-Dependent Emden-Fowler-Type Equations By Variational Iteration Method

Khaled Batiha — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.439.443

The main objective of the current study was to solve the time-dependent Emden-Fowler-type equation with singular behavior. The technique used here was called the variational iteration method (VIM). Th...

Petrology, Geochemistry and Magnetization of Remah Volcano North Eastern Jordan

Mazen AL-Amaireh — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.444.448

Peridotite ultramafic mantle xenoliths are occurring abundantly in the Harrat Al-Shaam basaltic province. Jabal Remah volcano is located in the Jordanian parts of the plateau and contains considerable...

Mathematical Modeling for Shakedown Analysis of Offshore Structures

Mohammad Javad Fadaee — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.449.455

The shakedown analysis process of an offshore structure having elastic-plastic material presented. The finite element model of the structure has been developed first, and then a simple method has been...

The Fate of Non-Volatile Organic Chemicals in The Agricultural Environment

Mohammad A. Batiha — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.456.464

Multimedia dynamic model of the fate of non-volatile organic chemicals (NVOC) in the agricultural environment is described. The modeled environment, consisting of up to three major surfaces environmen...

Assessment of Canadian Regulations and Remediation Methods for Diesel Oil Contaminated Soils

D. G. Rushton — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.465.478

Diesel fuel released into the environment can contaminate ground water, degrade potable water supplies and cause the collapse of fisheries. They are toxic to both animals and humans and can affect the...

Custom Design of an Analogue Input Digital Output Interface Card for Small Size PLCs

Mohammad A.K. Alia — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.479.483

This paper describes the design and implementation of an interface card (IC) with analogue input and digital output, designed for use with small size PLCs, which do not support interface features. The...

Design and Performance of EPS Footing for Lightweight Farm Structure on Peat Soil

Mohammad Abdullah — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.484.490

The objective of this research project was to find a potential replacement for the conventional pile foundation principally for peat soil. It is fundamentally meant for lightweight and impermanent agr...

Petrology and Origin of Ultramfic Xenoliths from North Eastern Jordan Volcanoes

Hassan Al-Fugha — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.491.495

The distribution of major, minor and trace elements in the Cenozoic alkali basalt from north-eastern Jordan indicates a homogeneous lava flow from a mantle source. These basaltic rocks contain abundan...

Robust Flight Control Design for a Turn Coordination System with Parameter Uncertainties

Ari Legowo — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.496.501

This paper presents a method of robust control system design for aircraft flight control systems with the existence of uncertainty parameters such as stability and control derivatives resulted by para...

Removal of Pb⁺² Ions from Aqueous Solutions by Adsorption on Kaolinite Clay

Waid Omar — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.502.507

The adsorption potential of the kaolinite clay for the removal of lead ions from aqueous solutions was tested. The measured adsorption isotherms at the different temperatures 298.15 K, 308.15 K and 31...

ANN Based DSPIC Controller for Reactive Power Compensation

R.A. Jayabarathi — 2007-07-31

American Journal of Applied Sciences, Published online: 31 July 2007; doi:10.3844/ajassp.2007.508.515

In India with a power shortage of about 10% of installed capacity, the transmission and distribution losses are relatively high. One of the reasons for the large loss is the excessive reactive loads o...