Volume 2, Issue 5 (2005) | American Journal of Applied Sciences

Morphing Mechanisms Part 1: Using Iterative Learning Control to Morph Cam Follower Motion

Nonglak Phetkong — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.897.903

This study introduces the concept of morphing mechanisms. Mechanisms are normally designed for specific operating conditions and once they are built one may wish to use them under different operating ...

Morphing Mechanisms Part 2: Using Repetitive Control to Morph Cam Follower Motion

Nonglak Phetkong — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.904.909

This research utilizes the repetitive control approach in morphing a high-speed cam mechanism so that its output displacement tracks the desired output trajectory. The main objective is to reduce the ...

Displacement of Boron from the Silicon Crystal Nodes by Interstitial Si Atoms During Implantation and Annealing

M. Jadan — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.910.913

The process of boron displacement from the nodes into interstitial positions of interstitial Si atoms in silicon (Watkins effect) on the conditions of implantation and annealing has been investigated ...

Thermodynamic Analysis of an Absorption/Compression Refrigeration System Using Geothermal Energy

L. Kairouani — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.914.919

This article presents the potential use and exploration of geothermal energy for cooling applications using a combined absorption/compression system. The considered system uses R134a for the compressi...

Currency Substitution in Turkey

Ismail H. Genc — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.920.925

We investigated whether the recent depreciations in the Turkish currency (Lira) resulted in the currency substitution away from Lira by using quarterly data over the period from 1987:1 to 2000: 2 with...

Model for Load Balancing On Processors in Parallel Mining of Frequent Itemsets

Ravindra Patel — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.926.931

The existence of many large transactions distributed databases with high data schemas, the centralized approach for mining association rules in such databases will not be feasible. Some distributed al...

Different Methods for Pion-nucleus Optical Potential

S. A.E. Khallaf — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.932.938

Elastic and inelastic cross-sections for pion scattering on 12C at pion kinetic energy ranging from 50 to 260 MeV are computed using three independent methods of π± -nucleus optical potential, the 3...

Effects of the Mass Transfer Process in Oil Spill

Fabián Betancourt — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.939.946

A revision of the models used to study the behavior of the mass loss processes associated with petroleum spills on water and to compare those models with experimental data. The processes of mass trans...

Study of the Optical and Physical Roles of a Dielectric Laser Dye Solvent Which Affects on the Dye Laser Operation

Riyad A.M. Ghazy — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.947.955

It is well known that when the pump laser beam incidence on the laser dye liquid it will be absorbed. This absorption tends to heat the laser active medium, which is the laser dye solution. In view of...

Implementation of a Novel Concatenated FEC by RS and Irregular Turbo Codes on OFDM Systems

A. Shanmugam — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.956.960

Code Division Multiple Access (CDMA) performs well in a multi-cellular environment where a single frequency is used in all cells. Code Division Multiple Access (CDMA) has severe problems associated wi...

Determination of Zinc, Cadmium, Lead and Copper in Kakade, Anise, Cumin, Caraway Black Pepper Extracts Using Differential Pulse Anodic Stripping Voltammetry with Hanging Mercury Drop Electrode

Z. R. Komy — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.961.968

An extraction and sensitive differential pulse anodic stripping voltammetric (DPASV) method at a hanging mercury drop electrode (HMDE) is described for the determination of Zn, Cu, Pb (mg g1) and Cd (...

Improving the Quality of Ceramic and Cemented Carbide Cutting Inserts by Diamond Grinding

Tareq Ahmad Abu Shreehah — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.969.975

The machining of hardened steel and other difficult-to-cut materials require high quality and progressive cutting tools to meet the growing requirements for increasing productivity, improving tool lif...

A Study for Allocating Resources in Research and Development Programs by Integrated Subjective and Objective Decision Method

Chun-Chu Liu — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.976.979

A decision model is developed to help managers select the most appropriate sequences of plans for product Research and Development (R and D) projects that have strict constraints on budget, time, and ...

Investigation into Waste Management on Construction Sites in South Western Nigeria

O. O. Akinkurolere — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.980.984

This study aims to report investigation into the problem of waste management on construction sites in South Western Nigeria and to unveil inherent dangers material wastage poses to the construction In...

Consumer's Acceptability Estimation of Cold Preserved Malaysian Freshwater Patin

A. S. Mokhtar — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.985.988

The study presents an attempt to correlate the consumer acceptability of Malaysian Patin fish with the storage time and temperature. A batch of typical fresh fishes was cut into regular slices (sample...

Effect of Gamma Irradiation on the Structure Diffusion Coefficient of Co-Zn Doped Ferrite

Dalal Mohammed Hemeda — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.989.992

A series of the ferrite system Co0.6Zn0.4MnxFe2-xO4 with (x = 0.7, 0.8, 0.9 and 1) were prepared by general ceramic method. The X-ray diffraction patterns confirmed the formation of the cubic single p...

Minimization of Load Oscillations in Travelling Mechanisms of Cranes

Kamal Khandakji — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.993.995

The paper presents an analysis of suspended load (cargo) oscillations in traveling mechanisms of cranes. A special control algorithm has been developed in order to get minimum cargo oscillations in mi...

Revisiting Share Market Efficiency: Evidence from the New Zealand Australia, US and Japan Stock Indices

Christopher Gan — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.996.1002

This study aims to re-examine the market efficiencies in New Zealand Stock Exchange (NZSE) and Australia Stock Exchange (ASX) stock indices to investigate whether Groenewold’s[1] findings still hold...

Numerical Analysis of Pressure Pulses in the Jerk Fuel Injection Systems

R. A. Baker — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.1003.1007

Computer software has been developed and described in the present study of thorough parametric analysis and design of a mechanical diesel fuel injection system. The method is based on the numerical so...

Improving the Gas Instantaneous Water Heaters Performances

Nasir Kloub — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.1008.1013

This study presents a study of a theoretical and practical investigation of the gas Instantaneous (Tankless) water Heaters performance. The results allow us to obtain realistic values of the control s...

Performance Comparison between Structural Element of Building Systems in Malaysia

M. R. Abdul Kadir — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.1014.1024

The Industrialized Building System (IBS) was introduced in Malaysia in 1966, but it failed to establish itself on a continuous basis though there has been a sustained large market for residential proj...

Mathematical Model of 4-Quadrant DC Electric Drive with 6-Pulse Dual Converter

Kosmas Zdrozis — 2005-05-31

American Journal of Applied Sciences, Published online: 31 May 2005; doi:10.3844/ajassp.2005.1025.1027

Mathematical model simulating the operation of DC electric drive hoisting mechanism has been developed. The study illustrates the capabilities of the developed model for investigation both normal and ...