Volume 3, Issue 4 (2010) | American Journal of Engineering and Applied Sciences

Performance Evaluation of a Heavy Duty Chisel Plow at Various Tillage Depth and Forward Speeds

S. A. Al-Suhaibani — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.588.596

Problem statement: Tillage is a process of creating a desirable soil condition for seed germination and growth. The tillage of soil is considered to be one of the biggest farm operations as the tillag...

Elapse Time Factor on Induced Vegetative Moisture Uptake in an Unsaturated Soil

Muazu Mohammed Abdullahi — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.597.603

Problem statement: Soil consolidation is generally time dependent, therefore soil displacement as a result root water uptake is space and time dependent. The time-dependent nature of abstraction of gr...

Neural Network Change Detection Model for Satellite Images Using Textural and Spectral Characteristics

A. K. Helmy — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.604.610

Problem statement: Change detection is the process of identifying difference of the state of an object or phenomena by observing it at different time. Essentially, it involves the ability to quantify ...

Modeling and Analysis of MRR, EWR and Surface Roughness in EDM Milling through Response Surface Methodology

A.K.M. Asif Iqbal — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.611.619

Problem statement: Electrical Discharge Machining (EDM) has grown over the last few decades from a novelty to a mainstream manufacturing process. Though, EDM process is very demanding but the mechanis...

Reliability Assessment of Buckling Strength for Compressed Cylindrical Shells with Interacting Localized Geometric Imperfections

Jalal El Bahaoui — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.620.628

Problem statement: Elastic cylindrical shells are common structures in the fields of civil engineering and engineering mechanics. These thin-walled constructions may undergo buckling when subjected to...

Merging Autopilot/Flight Control and Navigation-Flight Management Systems

Khaleel Qutbodin — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.629.630

In this abstract the following commercial aircraft 3 avionics systems will be merged together: (1) Autopilot Flight Director System (APFDS), (2) Flight Control System (FCS) and (3) Flight Management S...

Modeling Method of a Low-Pass Filter Based on Microstrip T-Lines with Cut-Off Frequency 10 GHz by the Extraction of its Wave-Scattering Parameters from its Causal Bond Graph Model

Hichem Taghouti — 2010-11-04

American Journal of Engineering and Applied Sciences, Published online: 4 November 2010; doi:10.3844/ajeassp.2010.631.642

Problem statement: This study presented a jointly application of bond graph technique and wave-scattering formalism for a new realization called scattering bond graph model which has the main advantag...

Optimization of Mix Proportion of High Performance Mortar for Structural Applications

Cheah Chee Ban — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.643.649

Problem statement: Mortar mix is a major construction material in fabrication of ferrocement structural elements. However, there have been scarce amount of technical data available on suitable mix p...

Flexural Behaviors of Damaged Full-Scale Highway Bridge Girder Strengthened by External Post Tension

Sayan Sirimontree — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.650.662

Problem statement: Prestressed Concrete (PC) I section girder with Reinforced Concrete (RC) topping slab has been widely applied to long span bridge girders for several years. A bridge girder is sub...

VLSI Implementation of Novel Class of High Speed Pipelined Digital Signal Processing Filter for Wireless Receivers

Rozita Teymourzadeh — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.663.669

Problem statement: The need for high performance transceiver with high Signal to Noise Ratio (SNR) has driven the communication system to utilize latest technique identified as over sampling systems...

VHDL Modeling, Simulation and Prototyping of a Novel Arbitrary Signal Generation System

S. A. Abbasi — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.670.677

Problem statement: Arbitrary signal generators play an important role in many applications. Several different techniques utilizing both analog and digital approaches are being used for the generatio...

The Solar Tracking System by Using Digital Solar Position Sensor

Singthong Pattanasethanon — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.678.682

Problem statement: An optimal control on two axes and design for solar tracker which called altitude and azimuth is challenge. Approach: The phototransistor with the shade that blocks the screen was...

DFM of Strained-Engineered MOSFETs Using Technology CAD

T. K. Maiti — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.683.692

Problem statement: In this study, a systematic study based on Technology CAD (TCAD) was taken up for the design and Virtual Wafer Fabrication (VWF) of strain-engineered MOSFETs in Si CMOS technology...

Optimization of the Geometrical Parameters of a Solar Bubble Pump for Absorption-Diffusion Cooling Systems

N. Dammak — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.693.698

Problem statement: The objective of this study was to optimize the geometrical parameters of a bubble pump integrated in a solar flat plate collector. Approach: This solar bubble pump was part of an...

Value Engineering Application in Highway Projects

Amiruddin Ismail — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.699.703

Problem statement: Each year, a major part of revenues spent on Investing in sector development plans and State infrastructures filled with clear reduce costs and done on time Projects leading to hi...

Seasonal Variation of Soil Resistivity and Soil Temperature in Bayelsa State

John Tarilanyo Afa — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.704.709

Problem statement: Due to the climatic variation for the year and it's sever harmattan during the month of December to March with the high keraunic level (80-90) in the areas, it was necessary to kn...

Error Vector Normalized Adaptive Algorithm Applied to Adaptive Noise Canceller and System Identification

Zayed Ramadan — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.710.717

Problem statement: This study introduced a variable step-size Least Mean-Square (LMS) algorithm in which the step-size is dependent on the Euclidian vector norm of the system output error. The error...

A Methodology for the Selection of Micro-Assembly Techniques

Dario Antonelli — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.718.722

Problem statement: The study addressed the problem of selecting the appropriate microassembly techniques according to the micro-part features. Actually, in the micro-domain, the choice of the correc...

Ceppo Morelli Block-Falls Probability Study to Support the Decision of Excavating a by-Pass Tunnel

S. Longo — 2010-11-05

American Journal of Engineering and Applied Sciences, Published online: 5 November 2010; doi:10.3844/ajeassp.2010.723.727

Problem statement: In this article, some important aspects linked to the new Ceppo Morelli (Piemonte, Italy) future by-pass tunnel construction were considered. Approach: The article concerned a mou...

Analysis of Interregional Commodity Flows

Wirach Hirun — 2010-11-22

American Journal of Engineering and Applied Sciences, Published online: 22 November 2010; doi:10.3844/ajeassp.2010.728.733

Problem statement: Commodity Flow Survey (CFS) was launched to collect comprehensive freight flow data throughout the kingdom of Thailand. The survey’s database is the most complete collection of c...

Effect of Wall Roughness and Concentration of Clay on Erosion in the Hole Erosion Test

Kissi Benaissa — 2010-11-22

American Journal of Engineering and Applied Sciences, Published online: 22 November 2010; doi:10.3844/ajeassp.2010.734.739

Problem statement: Internal soil erosion is a real threat for hydraulic infrastructures. In its final stage it develops in piping involving the formation and progression of a continuous void inside ...

Effect of Cycle Duration and Phasing on Thermomechanical Fatigue of Dog-Bone Specimens Made form Steel

Achegaf Zineb — 2010-11-30

American Journal of Engineering and Applied Sciences, Published online: 30 November 2010; doi:10.3844/ajeassp.2010.740.748

Problem statement: Lifetime of standard dog-bone specimens made form steel as affected by phasing between thermal cycles and strains cycles and by cycle duration in thermomechanical fatigue is assesse...

Investigation of Abutment Displacement of a Full Height Integral Bridges in Dense Granule Backfill

M. H. Alizadeh — 2010-11-30

American Journal of Engineering and Applied Sciences, Published online: 30 November 2010; doi:10.3844/ajeassp.2010.749.756

Problem statement: In this study, the behavior of abutment wall in full height frame integral abutment bridges was investigated. It was seen that the effect of backfill soil resistance on behavior o...

On-Chip Implementation of Pipeline Digit-Slicing Multiplier-Less Butterfly for Fast Fourier Transform Architecture

Yazan Samir Algnabi — 2010-11-30

American Journal of Engineering and Applied Sciences, Published online: 30 November 2010; doi:10.3844/ajeassp.2010.757.764

Problem statement: The need for wireless communication has driven the communication systems to high performance. However, the main bottleneck that affects the communication capability is the Fast Fo...

A Simplified Analytical Modeling of the Hole Erosion Test

Mohammed Bezzazi — 2010-11-30

American Journal of Engineering and Applied Sciences, Published online: 30 November 2010; doi:10.3844/ajeassp.2010.765.768

Problem statement: Internal erosion occurs in soils containing fine particles under the action of high pressure gradients that could result from water discharge. This phenomenon can yield in its fin...