Volume 2, Issue 2 (2009) | American Journal of Engineering and Applied Sciences

Cost-Effective Fabrication of Self-Made 1×12 Polymer Optical Fiber-Based Optical Splitters for Automotive Application

Mohammad Syuhaimi Ab-Rahman — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.252.259

Problem statement: Multimode fiber cables can conduct many light rays and can operate free of disruption and with a greater bandwidth than a wireless connection. However, due to a slight variation in ...

Intermittent Aeration in Biological Treatment of Wastewater

H. Doan — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.260.267

Problem statement: E-coating process is widely used to provide a protective coating layer on metal parts in the automotive and metal finishing industry. The wastewater from the coating process contain...

Diesel Engine Convert to Port Injection CNG Engine Using Gaseous Injector Nozzle Multi Holes Geometries Improvement: A Review

Semin — 2009-04-30

American Journal of Engineering and Applied Sciences, Published online: 30 April 2009; doi:10.3844/ajeassp.2009.268.278

The objective of this study was to review the previous research in the development of gaseous fuel injector for port injection CNG engine converted from diesel engine. Problem statement: The regular d...

Improving Reliability and Productivity of an Aluminum Extruder by Implementation of Direct Torque Control Technology

Mazouz A. Salahat — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.279.284

Problem statement: The linear motor drive is widely used in driving an extrusion puller in an aluminum extrusion industry. The main disadvantage of this drive is manual and step-wise torque control. T...

Optical Nonlinear Proreties and Optical Limiting Effect of Metanil Yellow

R. K. Rekha — 2009-06-18

American Journal of Engineering and Applied Sciences, Published online: 18 June 2009; doi:10.3844/ajeassp.2009.285.291

Problem statement: The third order nonlinear optical properties of organic polymers are used in high speed telecommunication, optical limiters and optical computers. The purpose of the study was to de...

Characterization and Evaluation of Algaof Kaolin Deposits of Yemen for Industrial Application

Aref A. AL-Shameri — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.292.296

Problem statement: The Barat-Algaof kaolin deposits are characterized and evaluated for its potentials as an industrial raw material. Approach: This research studied the total mineralogical compositio...

Electrical and Magnetoresistive studies Nd doped on La-Ba-Mn-O3 Manganites for Low-field Sensor application

H. Abdullah — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.297.303

Problem Statement: Electrical and magnetoresistive properties of the Nd doped (La1-xNdx)0.5Ba0.5MnO3 type samples with 0 ≤ x ≤ 1.0 had been prepared using the solid state reaction. These ma...

Identification of Flutter Derivatives of Bridge Decks in Wind Tunnel Test by Stochastic Subspace Identification

T. Janesupasaeree — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.304.316

Problem statement: Flutter derivatives are the essential parameters in the estimations of the flutter critical wind velocity and the responses of long-span cable supported bridges. These derivatives c...

Low-Cost Encoding Device for Optical Code Division Multiple Access System

Mohammad Syuhaimi Ab-Rahman — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.317.323

Problem statement: Instead of using Fiber Bragg Grating (FBG) to develop the coded spectrums, which consist of expensive elements, the grating also are highly sensitive to environmental changes and th...

Effect of Corrosion Damage on the Ductility Performance of Concrete Columns

J. Revathy — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.324.327

Problem statement: An experimental investigation was carried out on reinforced concrete columns with corroding reinforcement to assess the residual strength and ductility performance of columns. Appro...

Inverse Sine Phase Detector Phase Locked Loop Associated with Modified Multi Band LC Quadrature Voltage Controlled Oscillator for Wireless Communication Systems at 0.9, 1.8, 2.4, 3.5 GHz

Mahmoud Abdellaoui — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.328.336

Problem statement: In this study and in consequence of the restricted performance of the multi standard wireless receiver utilizing the classical architectures, we proposed and presented a new archite...

Low Power Phase Locked Loop Frequency Synthesizer for 2.4 GHz Band Zigbee

Nesreen Mahmoud Hammam Ismail — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.337.343

Problem statement: Wireless communication systems are required for many applications. There are different standards for these systems. IEEE 802.15.4 defines the communication system standard for zigbe...

On the Use of Rolling Element Bearings' Models in Precision Maintenance

Ioannis S. Zotos — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.344.352

Problem statement: Rolling element bearings form a very important part of machinery. The increasing demands on their continuous reliable operation under diverse environments make maintenance a very im...

Optimal Location of Static Var Compensator Device for Damping Oscillations

M. W. Mustafa — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.353.359

Problem statement: Static Var Compensators (SVC) devices are used to improve voltage and reactive power conditions in AC systems. An additional task of SVC is to increase transmission capacity as resu...

Determination of Kinetic Correction Coefficient of Fluid Flow Using a Generic Multiple Orifice Physical Scale Model Structure

Emmanuel M. Adigio — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.360.364

Problem statement: Diesel particulate filters are fast becoming integral parts of diesel engines, light and heavy duty, due to their potential in the reduction of particulate matter from exhaust gases...

Indoor Characterisation using High-Resolution Signal Processing Based on Five-Port Techniques for Signal Input Multiple Output Systems

Smari Mouheddin — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.365.371

Problem statement: The development of wideband mobile communication systems requires a deep knowledge of the characteristics of the indoor mobile radio channel. The characterization of the indoor mult...

Protection for an Immediate Split Structure of Tree-Based EPON Architecture-Ideal Condition Analysis

Mohammad Syuhaimi Ab-Rahman — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.372.380

Problem statement: Ethernet Passive Optical Network (EPON) was proposed to overcome the bandwidth bottleneck at the Access Networks due to its simplicity, cost effective and wide spread deployment. A ...

Geometric Optimization of Three-Phalanx Prosthesis Underactuated Fingers using Particles Swarm Algorithm

Somar M. Nacy — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.381.387

Problem statement: One are now interested to investigate the optimum design procedure for a finger driving mechanism to have a good configuration of the finger for its utilization in hand prosthesis. ...

Robust Position Controller for a Permanent Magnet Synchronous Actuator

Chams-Eddine Feraga — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.388.392

Problem statement: The present study investigated with the application of a robust control scheme to improve the performance of a simplified indirect field oriented for small power surface mounted Per...

A Fast Series Active Filter using Sliding Mode Control to Correct and Regulate Unbalance Voltage in Three-Phase System

Theerayuth Chatchanayuenyong — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.393.398

Problem statement: A Sliding Mode Controller (SMC) with fast reference voltage generation to correct and regulate unbalance voltage in three-phase system was proposed. Approach: The compensation algor...

Backscattered Acoustic Energy by Monobubbles Experimental Approach and Statistical Study of the Attenuation

Ali Khelil — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.399.406

Problem statement: As the number of air bubbles in the sea is very high, they are so many acoustic diffusers who make illegible the recordings the purpose of which is to quantify the alive bodies. The...

Numerical Study on the Performance Characteristics of Hydrogen Fueled Port Injection Internal Combustion Engine

Rosli A. Bakar — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.407.415

This study was focused on the engine performance of single cylinder hydrogen fueled port injection internal combustion engine. GT-Power was utilized to develop the model for port injection engine. One...

Analysis of the Tunnel Boring Machine Advancement on the Bologna-Florence Railway Link

M. Cardu — 2009-09-30

American Journal of Engineering and Applied Sciences, Published online: 30 September 2009; doi:10.3844/ajeassp.2009.416.420

Problem statement: The high-velocity railway link between Bologna and Firenze (Italy) is today under construction and several tunnels have to be excavated for this purpose, some of these using TBMs. A...

Hot Machining of Hardened Steels with Coated Carbide Inserts

M. A. Lajis — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.421.427

Problem statement: The benefits of easier manufacture of hardened steel components can be substantial in terms of reduced machining costs and lead times compared to the traditional route involving mac...

Design of Garbage Sorting Machine

Stephen Kwasi Adzimah — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.428.437

Problem statement: Domestic waste collection, sorting and disposal are major problems in many developing countries such as Ghana. It is an undeniable fact that the environment has been engulfed in fil...

Degradation of High Voltage Polymeric Insulators in Arid Desert's Simulated Environmental Conditions

Yasin Khan — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.438.445

Problem statement: High Voltage (HV) polymeric insulators are replacing ceramic insulator commonly used for HV outdoor networks due to their ease of handling, reliability and cost. However, their lon...

Iterative Numerical Method of Gate Turn-Off Thyristor: Comparative Study Between Si and SiC

S. M. Zahim — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.446.450

Problem statement: Silicon (Si) has long been the dominant semiconductor of choice for high-power, high-temperature and high-frequency device applications. However, recently, wide bandgap semiconducto...

Utilization of Soft Wood Wastes as a Feed Stock to Produce Fuel Ethanol

Adnan M. Khalil — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.451.455

Problem statement: The current research investigated the utilization of soft wood waste as a feedstock to produce a value-added product-fuel ethanol. Approach: The main issue in converting soft wood w...

A New Method for Accuracy Assessment of Sub-Pixel Classification Results

H. Emami — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.456.465

Problem statement: Classification accuracy assessment is the main stage of information extraction to evaluate the performance of a classifier. According to the output's classifiers (thematic map/fract...

Basic Theoretical Backgrounds of the Engineering Design Procedure of a Drying Plant

Jamil Sami Haddad — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.466.470

Problem statement: This study was made to reduce energy consumption and increase productivity of drying process in many industries, to achieve the required aim, design arithmetic methods and choose th...

Cooperative Sensing in Cognitive Radio Networks-Avoid Non-Perfect Reporting Channel

Rania A. Mokhtar — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.471.475

Problem statement: Cognitive radio is a candidate technology for more efficient spectrum utilization systems based on opportunistic spectrum sharing. However, a common assumption regarding cognitive r...

Geologic Mapping of United Arab Emirates using Multispectral Remotely Sensed Data

Maged Marghany — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.476.480

Problem statement: Geological studies are requiring standard methods and procedures to acquire precisely information. However, traditional methods might be difficult to use due to highly earth complex...

An Original Geometric Programming Problem Algorithm to Solve Two Coefficients Sensitivity Analysis

Abbas Y. Al-Bayati — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.481.487

Problem statement: It has been noticed by Dinkel and Kochenberger that they developed sensitivity procedure for Posynomial Geometric Programming Problems based on making a small changes in one coeffic...

Implementing a Vector Controller Using 68k Processors

Mohammad Bagher — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.488.493

Problem statement: This study described the design of a 3-phase AC Induction Motor (ACIM) vector control drive with position encoder coupled to the motor shaft. Approach: It was based on free scale's ...

Priority and Random Selection for Dynamic Window Secured Implicit Geographic Routing in Wireless Sensor Network

Zurina Mohd Hanapi — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.494.500

Problem statement: Sensor nodes are easily exposed to many attacks since it were deployed in unattended adversarial environment with no global addressing and used for critical applications such as bat...

Femtotechnology: Nuclear Matter with Fantastic Properties

A. A. Bolonkin — 2009-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2009; doi:10.3844/ajeassp.2009.501.514

Problem statement: At present the term 'nanotechnology' is well known-in its' ideal form, the flawless and completely controlled design of conventional molecular matter from molecules or atoms. Such a...