Volume 9, Issue 7 (2012) | American Journal of Applied Sciences

On Stability and Bifurcation of Solutions of Nonlinear System of Differential Equations for AIDS Disease

S. A.A. El-Marouf — 2012-04-24

American Journal of Applied Sciences, Published online: 24 April 2012; doi:10.3844/ajassp.2012.961.967

Problem statement: This study aims to discuss the stability and bifurcation of a system of ordinary differential equations expressing a general nonlinear model of HIV/AIDS which has great interests fr...

Community Development and its Influence on Community Policing

Abdul Hadi Sulaiman — 2012-04-26

American Journal of Applied Sciences, Published online: 26 April 2012; doi:10.3844/ajassp.2012.968.973

Problem statement: Undeniably communities around the world are facing numerous challenges in the development process and one of it is to ensure a safe community. To achieve this, community policing is...

Malaysia Youth Council (MBM) and its Relevance to Youth Development

Dzuhailmi Dahalan — 2012-04-26

American Journal of Applied Sciences, Published online: 26 April 2012; doi:10.3844/ajassp.2012.974.978

Problem statement: Malaysia Youth Council (MBM) which is also known as National Youth Council is a Non-Governmental Organization (NGO) accredited to represent the voice of youth generation in Malaysia...

Thermal Control of a Greenhouse by Variation in Ventilation Rate using a Fuzzy Parallel Distributed Compensation Controller with an RST Regulator in Each Rule

Elyes Feki — 2012-04-27

American Journal of Applied Sciences, Published online: 27 April 2012; doi:10.3844/ajassp.2012.979.987

Problem statement: The greenhouse has uncontrollable inputs that affect its climate, which arises the difficulty to regulate its inside temperature. The solution can be found using a multi-system appr...

A Price Hedging Model in Dynamic Market

Kuo-Wei Lin — 2012-08-03

American Journal of Applied Sciences, Published online: 3 August 2012; doi:10.3844/ajassp.2012.988.992

Problem statement: Pricing is a problem when a firm has to set a price for the first time. This happens when the firm develops or acquires a new product, introduces its regular product into a new dist...

Physico-Chemical Characteristics of Date Seed Oil Grown in Sudan

Rehab Salih Mahmoud Abdalla — 2012-05-05

American Journal of Applied Sciences, Published online: 5 May 2012; doi:10.3844/ajassp.2012.993.999

Problem statement: Studies were conducted on the physical-chemical properties of Sudanese date seed oil extracted from two date palm cultivars (Phoenix dactylifera L.) ALBarakawi and Alqundeila. The e...

Phyllanthus Amarus Facilitates the Recovery of Peripheral Nerve after Injury

Panakpaporn Wannannond — 2012-05-10

American Journal of Applied Sciences, Published online: 10 May 2012; doi:10.3844/ajassp.2012.1000.1007

Problem statement: Peripheral nerve injuries are associated with morbidity and outcomes of peripheral nerve repair are poor. Moreover, it can subsequently leads to economic or social disability. Recen...

Controller Based Observer in Switched System with Norm Bounded Uncertainty

Mongi Besbes — 2012-05-11

American Journal of Applied Sciences, Published online: 11 May 2012; doi:10.3844/ajassp.2012.1008.1013

Problem statement: This study discusses the robust stabilization of norm bounded discrete switched systems. Approach: The proposed method is using the second Lyapunov approach and the poly-quadratic f...

Determination of Heavy Metals and Other Elements in Artisanal Gold Mining Soils

S. Girigisu — 2012-05-14

American Journal of Applied Sciences, Published online: 14 May 2012; doi:10.3844/ajassp.2012.1014.1019

Problem statement: The possible exposure of heavy elements to life as a result of artisanal gold mining activities can be of great concern because of its associated effect on health. Approach: Soil sa...

A Novel Approach in Malignancy Detection of Computer Aided Diagnosis

S. Meenalosini — 2012-05-15

American Journal of Applied Sciences, Published online: 15 May 2012; doi:10.3844/ajassp.2012.1020.1029

Problem statement: Breast cancer is one of the most dangerous diseases that cause innumerable fatal in the female society. Early detection is the only way to reduce the mortality. Due to variety of fa...

An Investigation of Compressed Natural Gas Engine for Nitrogen Oxides Reduction

P. M. Diaz — 2012-05-15

American Journal of Applied Sciences, Published online: 15 May 2012; doi:10.3844/ajassp.2012.1030.1036

Problem statement: This study describes the use of Reformer Gas (RG) to alter NOx emission in a CNG-fueled HCCI engine. Comparison with diesel, natural gas has a very high octane number (≈120) and h...

Thermal Comfort Assessment-A Study Toward Workers’ Satisfaction in a Low Energy Office Building

Mohd Nafiz Shaharon — 2012-05-16

American Journal of Applied Sciences, Published online: 16 May 2012; doi:10.3844/ajassp.2012.1037.1045

Problem statement: The government of Malaysia has raised their concerns towards the issue of workers comfort and workspace quality in a Low Energy Office (LEO) building. New energy efficient building ...

Simplified Modeling, Analysis and Simulation of Permanent Magnet Brushless Direct Current Motors for Sensorless Operation

E. Kaliappan — 2012-05-16

American Journal of Applied Sciences, Published online: 16 May 2012; doi:10.3844/ajassp.2012.1046.1054

Problem statement: In this study, a simplified modeling and experimental analysis of Permanent Magnet Brushless DC (PMBLDC) motors for Sensorless operation using MATLAB/SIMULINK. This model provides...

Providing Fairness to Mobile Workforces in an Automated Task Allocation Process: A Semantic Multi-agent Approach

Arash Mousavi — 2012-05-16

American Journal of Applied Sciences, Published online: 16 May 2012; doi:10.3844/ajassp.2012.1055.1062

Problem statement: Mobile Workforces (MW) unlike computational resources of an automated system are active but not passive entities. Therefore, an automated resource allocation system that deals with ...

Sentence Annotation based Enhanced Semantic Summary Generation from Multiple Documents

A. Kogilavani — 2012-05-17

American Journal of Applied Sciences, Published online: 17 May 2012; doi:10.3844/ajassp.2012.1063.1070

Problem statement: The goal of document summarization is to provide a summary or outline of manifold documents with reduction in time. Sentence extraction could be a technique that is employed to pic...

Lipid Profile and Antioxidant Enzymes in Normal and Stressed Rat Fed with Palm Olein

Eqbal M.A. Dauqan — 2012-05-18

American Journal of Applied Sciences, Published online: 18 May 2012; doi:10.3844/ajassp.2012.1071.1078

Problem statement: The objective of the study was to evaluate the effect of Red Palm Olein (RPO) and Palm Olein (PO) on lipid profile and antioxidant enzyme in normal and stressed rat. Approach: Thirt...

The Coastal Current of the Andaman Sea Revealed by Reprocessed Observations

Sakharin Suwannathatsa — 2012-05-22

American Journal of Applied Sciences, Published online: 22 May 2012; doi:10.3844/ajassp.2012.1079.1084

Problem statement: The surface currents in the Andaman Sea are observed and quantified by many studies in opposite of the local coastal current that is unclear. Knowing the contributor to this local c...

Home Stay Accommodation for Tourism Development in East Coast Economic Region

Md. Anowar Hossain Bhuiyan — 2012-05-24

American Journal of Applied Sciences, Published online: 24 May 2012; doi:10.3844/ajassp.2012.1085.1090

Problem statement: Home stay program provided tourists multi ethnic life condition with cultural experiences and economic well beings for the local people. Malaysian home stay program differed from th...

Properties of Chitosan Nanoparticles Formed Using Sulfate Anions as Crosslinking Bridges

Mayyas M.A. Al-Remawi — 2012-05-28

American Journal of Applied Sciences, Published online: 28 May 2012; doi:10.3844/ajassp.2012.1091.1100

Problem statement: The preparation of new simple Chitosan nanoparticle delivery system is very important and could have many applications particularly in pharmaceutical field to be used as a drug deli...

An Optimal Load Sharing Technique For Grid Computing

D. Ramesh — 2012-05-29

American Journal of Applied Sciences, Published online: 29 May 2012; doi:10.3844/ajassp.2012.1101.1106

Problem statement: Grid and Cloud Computing is the fast growing industry, in which the grid computing shares the resources in the organization in an effective manner. Resource sharing requires more op...

An Alternative Graph Cut Algorithm for Morphological Edge Detection

P. Radhakrishnan — 2012-05-29

American Journal of Applied Sciences, Published online: 29 May 2012; doi:10.3844/ajassp.2012.1107.1112

Problem statement: Image analysis has some basic importance of edge detection. Characterize the object boundaries are helpful for object segmentation, registration and identification in a scene. There...

Ising Model for Conductive Percolation in Electrically Conductive Adhesives by Considering Random Arrangement of Conducting Particles

Mora — 2012-05-30

American Journal of Applied Sciences, Published online: 30 May 2012; doi:10.3844/ajassp.2012.1113.1123

Problem statement: Thermodynamically, particles in composites will arrange in a way such that the Helmholtz free energy is minimized. However, even a single structure has the lowest free energy, it sh...

GC-MS Analysis and PLS-DA Validation of the Trimethyl Silyl-Derivatization Techniques

Kamalrul Azlan Azizan — 2012-06-04

American Journal of Applied Sciences, Published online: 4 June 2012; doi:10.3844/ajassp.2012.1124.1136

Problem statement: Comparison and validation analysis of the conventional and power-adjusted Microwave-Assisted (MA) techniques of TMS derivatization using Gas Chromatography-Mass Spectrometry (GC-MS)...

Tunnel Static Behavior Assessed by a Probabilistic Approach to the Back-Analysis

Claudio Oggeri — 2012-06-04

American Journal of Applied Sciences, Published online: 4 June 2012; doi:10.3844/ajassp.2012.1137.1144

Problem statement: The steps of the validation procedure of the project of a tunnel are briefly illustrated in this study, starting from the geological and structural surveys on the excavation walls a...

Extraction of Ca (II) and Mg (II) from Hydrochloric Acid Solutions by N, N-Dioctyl-1-Octan Ammonium Chloride in Methyl Isobutyl Ketone

Arben Haziri — 2012-06-08

American Journal of Applied Sciences, Published online: 8 June 2012; doi:10.3844/ajassp.2012.1145.1149

Problem statement: Amines as organic molecules are able to form complexes with metals ions and this is the reason why we can use them to extract metals ions from hydrometallurgical solutions. Approach...