Volume 3, Issue 1 (2010) | American Journal of Engineering and Applied Sciences

Effect of Polypropylene Fibers on the California Bearing Ratio of Air Cured Stabilized Tropical Peat Soil

Behzad Kalantari — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.1.6

Problem statement: Peat soil is well known to deform and fail under a light surcharge load and is characterized with low shear strength, high compressibility and high water content. With the rising de...

Production Scheduling for Dispatching Ready Mixed Concrete Trucks Using Bee Colony Optimization

Sakchai Srichandum — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.7.14

Problem statement: This study proposed a systematic model of delivering Ready Mixed Concrete (RMC) that optimizes the schedule of dispatching RMC trucks. Approach: Firstly, the factors that impact the...

Application of Intelligence Based Genetic Algorithm for Job Sequencing Problem on Parallel Mixed-Model Assembly Line

A. Norozi — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.15.24

Problem statement: In the area of globalization the degree of competition in the market increased and many companies attempted to manufacture the products efficiently to overcome the challenges faced....

On-Chip Implementation of High Resolution High Speed Floating Point Adder/Subtractor with Reducing Mean Latency for OFDM

Rozita Teymourzadeh — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.25.30

Problem statement: Fast Fourier Transform (FFT) is widely applied in OFDM trance-receiver communications system. Hence efficient FFT algorithm is always considered. Approach: This study proposed FPGA ...

Spiral Wound Reverse Osmosis Membranes for the Recovery of Phenol Compounds-Experimental and Parameter Estimation Studies

G. Srinivasan — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.31.36

Problem statement: Reverse osmosis is increasingly used as a separation technique in chemical and environmental engineering for the removal of organics and organic pollutants present in waste water. T...

Seismic Response Evaluation of Moment Resistant Frame with Built-Up Column Section

Mohammad Ebrahimi — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.37.41

Problem statement: Moment Resisting Frame (MRF) is widely used as lateral resisting systems when sufficient ductility and deformability are to be met. Response of these structures is strictly dependen...

New Control Technique Applied in Dynamic Voltage Restorer for Voltage Sag Mitigation

Rosli Omar — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.42.48

The Dynamic Voltage Restorer (DVR) was a power electronics device that was able to compensate voltage sags on critical loads dynamically. The DVR consists of VSC, injection transformers, passive filte...

Fixed-Star Tracking Attitude Control of Spacecraft Using Single-Gimbal Control Moment Gyros

Sangwon Kwon — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.49.55

Problem statement: A cluster of small-sized Single-Gimbal Control Moment Gyros (SGCMGs) is proposed as an attitude control actuator for high-speed maneuver of small satellites. There exists a singular...

Anisotropy Influence of Cubic Solid on Dynamic Hertzian Contact Stiffness for a Vibrating Rigid Indenter

Jiayong Tian — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.56.63

Problem statement: Resonance-type microscopies have been widely used to evaluate the nanoscaled or microscaled surface elastic properties of materials by the resonance-frequency shifts of an oscillato...

Electrical and Optical Properties of N, N`-Bis (Inaphthyl)-N,N`-Diphenyl-1,1`-Biphenyl-4,4`-Diamine as Hole Transport Layer in Organic Light Emitting Devices

M. Y. Lim — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.64.67

Problem statement: The aim of this research was to study the electrical and optical properties of N, N`-bis(Inaphthyl)-N,N`-diphenyl-1,1`-biphenyl-4,4`-diamine (NPB) organic materials often used as ho...

Analysis of Comparison between Unconfined and Confined Condition of Foamed Concrete Under Uni-Axial Compressive Load

Mohd Zairul Affindy Abdul Rahman — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.68.72

Problem statement: Foamed concrete has become most commercial material in construction industry. People in industries were come out with the new mix design of foamed concrete to meet the specification...

Sustainability of Rainwater Harvesting Systems in Multistorey Residential Buildings

A. Rahman — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.73.82

Problem statement: The urban water supply systems in Australian large cities, which generally depend on large surface water reservoirs, are highly stressed due to rapid urban growth and severe drought...

Comparative Study of Different Underfill Material on Flip Chip Ceramic Ball Grid Array Based on Accelerated Thermal Cycling

Z. Kornain — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.83.89

Problem statement: This study mainly to study the effect of several commercial underfill materials to the reliability of HiCTE Flip Chip Ceramic Ball Grid Array (FC-CBGA) package due to Accelerated T...

Fuel and Greenhouse Gas Emission Reduction Potentials by Appropriate Fuel Switching and Technology Improvement in the Canadian Electricity Generation Sector

Farshid Zabihian — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.90.97

Problem statement: In recent years, Greenhouse Gas (GHG) emissions and their potential effects on global climate change have been a worldwide concern. According to International Energy Agency (IEA), p...

Single Beam Z-Scan Measurements of Nonlinear Refraction and Nonlinear Absorption Coefficients in Silver Nano-Fluid

Esmaeil Shahriari — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.98.101

Problem statement: The nonlinear refractive index and nonlinear absorption are two important optical phenomena which are extensively used in optical switching, optical limiting and labeling. Approach:...

Optimization of Cutting Parameters Based on Surface Roughness and Assistance of Workpiece Surface Temperature in Turning Process

Adeel H. Suhail — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.102.108

Problem statement: In machining operation, the quality of surface finish is an important requirement for many turned workpieces. Thus, the choice of optimized cutting parameters is very important for ...

Repairing and Strengthening of an Existing Reinforced Concrete Building: A North Cyprus Perspective

Hakan Yalciner — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.109.116

Problem statement: Inadequate attention during design and construction of some of Reinforced Concrete (RC) buildings in North Cyprus has raised questions about the performance level of these existing...

Mobile Phone Base Station Radiation Study for Addressing Public Concern

Aiman Ismail — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.117.120

Problem statement: The proliferation of mobile phone base stations had increased concerns from the public on the radio frequency radiation hazards that might come from them. The world wide public conc...

Electronic Design Automation Using Object Oriented Electronics

Walid M. Aly — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.121.127

Problem statement: Electronic design automation is the usage of computer technology and software tools for designing integrated electronic system and creating electrical schematics. Approach: An appro...

AC Analysis of PEO₁₀LiCF₃SO₃ Polymeric Material for Memory Storage Application

Mahmoud Z. Iskandarani — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.128.132

Problem statement: Intelligent systems that need to accurately represent human brain requires analogue devices such as a neural switch that processes decision signals and can actually remember the mad...

Confined High Strength Concrete Columns: An Experimental Study

Jagannathan Saravanan — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.133.137

Problem statement: An experimental study on GFRP confined high strength concrete columns has been carried out with a view to evaluate its performances under uni-axial compression in terms of load and ...

A Novel Transporting System Model for Oil Refinery

Razman Mat Tahar — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.138.143

Problem statement: Oil refineries are widely used to store various liquids and gases. Petroleum products are in high demand. Oil companies have abundant resources of petroleum products in pipelines an...

A Dynamic Voltage Restorer for Voltage Sag Mitigation in a Refinery with Induction Motors Loads

Tarek I. El-Shennawy — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.144.151

Problem statement: ANRPC is a refinery based in Alexandria, Egypt. The plant was subjected to several shutdowns due to tripping of large induction motors, either by under voltage or by over current re...

Energetic Performances Study of an Integrated Collector Storage Solar Water Heater

O. Helal — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.152.158

Problem statement: Although that the interest attributed to the solar energy remains relatively limited, we attend today to the conception of several installations using the sun as energy source among...

Simulation of Airflow and Aerodynamic Forces Acting on a Rotating Turbine Ventilator

A.S. Farahani — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.159.170

Problem statement: Rotating turbine ventilators were generally found in most countries. They were simple in structure, light in weight and cheap to install. It was quite surprising that, the aerodynam...

Low-doping Effects of Nanostructure ZnO: Sn tin films annealed at different temperature in Nitrogen ambient to be applied as an Anti-reflecting coating (ARC)

H. Abdullah — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.171.179

Problem statement: The focus of this research is to discover the significant influences of substituting low concentration Sn at Zn-site as an Anti-Reflecting Coating (ARC) for Zn1-xSnxO compound. The ...

Reflectivity of Reflectarrays Based on Dielectric Substrates

M. Y. Ismail — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.180.185

Problem statement: Reflectarrays provide a low cost and low profile solution for antennas required for high gain applications but their use is restricted in some applications due to the narrow bandwid...

A Study of Sugarcane Leaf-Removal Machinery during Harvest

Sopa Cansee — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.186.188

Problem statement: Sugarcane leaf-removing tools could help speed up sugarcane harvest and reduce contamination. Moreover, leaf-removal machinery can solve the problems of sugarcane burning and worker...

A Novel Low-Power CMOS Operational Amplifier with High Slew Rate and High Common-Mode Rejection Ratio

Ismail Nabhan — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.189.192

Problem statement: High speed operational amplifier is always an on-going research topic since major high speed application are needed. Approach: A two-stage operational amplifier (op amp) is designed...

Identification of Instabilities of the Chip Formation and It's Prediction Model During End Milling of Medium Carbon Steel (S45C)

Md. Anayet U Patwari — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.193.200

Problem statement: Chip shape and size varied widely in machining operations. Undesirable chip formation had a detrimental effect on surface finish, work-piece accuracy, chatter and tool life. Approac...

Hardware Implementation of Truncated Multipliers Using Spartan-3AN, Virtex-4 and Virtex-5 FPGA Devices

Muhammad H. Rais — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.201.206

Problem statement: The development cost for Application Specific Integrated Circuits (ASICs) are high, algorithms should be verified and optimized before implementation. The Digital Signal Processin...

Modification Approach of Fuzzy Logic Model for Predicting of Cutting Force When Machining Nickel Based Hastelloy C-276

Basim A. Khidhir — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.207.213

Problem statement: Most Nickel based Hastelloy C-276 is a difficult-to-machine material because of its low thermal diffusive property and high strength at high temperature. Machinability considerati...

Fiber Optic Sensors for Transportation Infrastructural Health Monitoring

Chin Chang — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.214.221

Problem statement: Monitoring the health of transportation infrastructures is currently reliant on transportation maintenance teams. Scheduled and periodic inspections on most of the infrastructures a...

Rating of Spur Gear Strength Using Photoelasticity and the Finite Element Method

Konstandinos G. Raptis — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.222.231

Problem statement: Toothed gears are some of the most used machine elements for motion and power transmission between rotating shafts. This fact induces the need for improved reliability and higher en...

A Review of Constitutive Models for Rubber-Like Materials

Aidy Ali — 2010-03-31

American Journal of Engineering and Applied Sciences, Published online: 31 March 2010; doi:10.3844/ajeassp.2010.232.239

Problem statement: This study reviewed the needs of different constitutive models for rubber like material undergone large elastic deformation. The constitutive models are widely used in Finite Elemen...