Volume 5, Issue 2 (2008) | American Journal of Applied Sciences

Gamma Radiosensitivity Study on Chili (Capsicum annuum)

Shairul Rizdiyandi Omar — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.67.70

Induced mutation by gamma irradiation has been found to be a very useful technique for crop improvement. Apart from this, the proper use of induced mutation in plant breeding has become a profitable a...

Improvement of Nuclear Track Density Measurements Using Image Processing Techniques

A. Mostofizadeh — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.71.76

The well known edge detection methods were applied to evaluate accuracy and precision of nuclear track densitometry of polycarbonate detector. All measurements carried out in two cases of before and a...

JTst- An Automated Unit Testing Tool for Java Program

Kamal Zuhairi Zamli — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.77.82

Software testing is an integral part of software development lifecycle. Lack of testing can often lead to disastrous consequences including lost of data, fortunes, and even lives. Despite its importan...

Tactile Distinction of an Artery and a Tumor in a Soft Tissue by Finite Element Method

Ali Abouei Mehrizi — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.83.88

Tactile detection of a tumor and an artery in a tissue and distinction of a healthy artery from a stenotic artery, using finite element method, are presented. Four 2D models of tissue have been create...

Convergence Ratio Profile for Optimal Control Problems Governed by Ordinary Differential Equations with Matrix Coefficients

O. Olotu — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.89.92

The geometric convergence ratio, the main focus of a discretized scheme for constrained quadratic control problem was examined. In order to allow for the numerical applications of the developed scheme...

A New Quantum key Distribution Protocol

Essam Al-Daoud — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.93.96

A new quantum key distribution protocol is proposed. The suggested protocol has two advantages. First: whenever an eavesdropper is present, the error rate increases obviously. Second, the eavesdropper...

Control of Hybrid Systems With Independent Continuous and Discrete Goals

M. De la Sen — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.97.105

This paper deals with the control of a class of perfectly modelled linear hybrid systems which consist of two, in general coupled, subsystems one being continuous -time while the second one is digital...

An Assessment of Compressive Size Effect of Plane Concrete Using Combination of Micro-Plane Damage Based Model and 3D Finite Elements Approach

M. Labibzadeh — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.106.109

In recent years, the material behavior dependence of laboratory concrete specimens built with the same concrete mixture under the same load conditions to their geometrical sizes is well established. T...

Computational Simulation of Fuel Nozzle Multi Holes Geometries Effect on Direct Injection Diesel Engine Performance Using GT-POWER

Rosli Abu Bakar — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.110.116

The computational model simulation development is use the commercial computational fluid dynamics of GT-POWER 6.2 software were specially development for internal combustion engines performance simula...

Impact of Takeoff Angle of Bucket Type Energy Dissipater on Scour Hole

Nor Azlina Alias — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.117.121

Scour holes formed downstream of bucket type energy dissipater may affect the safety and stability of the structure. In this study, a physical model is employed to study the impact of takeoff angle of...

Experimental and Theoretical Analysis of a Novel Flexible Membrane Tactile Sensor

Goldis Darb Emamieh — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.122.128

In this study, we report the development of a new multi tactile sensor, capable of detecting 2D surface texture image, measuring contact-force, and identifying the difference between stiffness of sens...

Fabrication of a Capacitance-Based Tactile Sensor with Biomedical Applications

Ali Tavakoli Golpaygani — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.129.135

The design, modeling, and testing of a flexible tactile sensor and its applications are presented. This sensor is made of polymer materials and can detect the 2D surface texture image and contact-forc...

Design of Low Phase Noise SIPC based Complementary LC-QVCO for IEEE 802.11a Application

Harikrishnan Ramiah — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.136.141

The paper presents the design of a source injection parallel coupled (SIPC) quadrature voltage controlled oscillator (QVCO), realized in a complementary architecture, which is usually preferred in low...

The Preparation and Investigation of Magnetic Properties of Magnesium Zinc ferrites

A. Rittidech — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.142.145

Mg0.7Zn0.3Fe2O4 (MZF) is a ferrites material, displaying interesting magnetic properties. It has a wide range of magnetic coils and electronic devices. In this research, MZF ceramics was prepared by s...

The Gaussianity Evaluations of Malaysian Stock Return Volatility

Chin Wen Cheong — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.146.151

We study the distribution of standardized returns by using various frequencies data. The empirical standardized returns are obtained by using the unobserved and observable daily volatility. Our empiri...

Finite Element Analysis of Frictional Contact Problem During the Process of Metal Working

Nicolae Pop — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.152.157

The quasistatic contact problem with dry friction, contributes to the achievement of a numerical model for the simultaneity of different kinds of viscoplastic, incompressible materials forming. Starti...

Minimization of Multiple-Valued Decision Diagrams Based on Matrix Computation

Omid Kavehie — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.158.164

This paper proposes a new algorithm to simplify the multiple valued logic (MVL) decision diagrams. This algorithm is based on a new level coupling rule. By changing the designer’s perspective toward...

Thermal Diffusivity of Carbon Pellets (CPs) Treated with KOH

M. Haydari — 2008-02-28

American Journal of Applied Sciences, Published online: 28 February 2008; doi:10.3844/ajassp.2008.165.168

In this work thermal diffusivity of carbon pellets (CPs) treated with different percentage level of KOH has been studied. Thermal diffusivity measurements were carried out at room temperature by using...