Volume 9, Issue 2 (2012) | American Journal of Applied Sciences

Enhanced Production of Extracellular Alkaline Lipase by an Improved Strain of Pseudomonas aeruginosa MTCC 10,055

Deepali Bisht — 2011-11-24

American Journal of Applied Sciences, Published online: 24 November 2011; doi:10.3844/ajassp.2012.158.167

Problem statement: Lipases are industrially important enzymes having applications in numerous industries. For easy commercialization it is necessary to produce lipases at industrial level which could ...

Forecast and Performance of Wind Turbines

T. Ahilan — 2011-12-02

American Journal of Applied Sciences, Published online: 2 December 2011; doi:10.3844/ajassp.2012.168.176

Problem statement: Wind energy industry is a nonprofit organization that works hands-on with local and community based wind projects, providing technical support to create an understanding of wind ene...

Dihydroartemisinin-Stimulated Hyperplasia of Rat Lung Smooth Muscles

Utoh-Nedosa Uchechukwu Anastasia — 2011-12-08

American Journal of Applied Sciences, Published online: 8 December 2011; doi:10.3844/ajassp.2012.177.179

Problem statement: Dihydroartemisinin was shown to produce two types of inhibitory effects on the cardiac muscles of rats. It was also shown to stimulate haemopoiesis in the lungs, liver, spleen, inte...

Performance of Thin-Film as Wavelength Filter in Wdm-Pof Network

Mohd Syuhaimi Ab. Rahman — 2011-12-09

American Journal of Applied Sciences, Published online: 9 December 2011; doi:10.3844/ajassp.2012.180.185

Problem statement: Huge capacity for data transmission and bandwidth are becoming a need nowadays. High cost of implementation using optical fibers prevents utilization of the technology as wide as po...

The Influences of Connectors and Adaptors to Fiber-To-The-Home Network Performance

Mohammad Syuhaimi Ab-Rahman — 2011-12-09

American Journal of Applied Sciences, Published online: 9 December 2011; doi:10.3844/ajassp.2012.186.195

Problem statement: The reliability of the entire communications network was dependent on the reliability of each single element. Connector was important devices that can affect the performance of the ...

Compositional Analysis on Ancient Bricks from Candi Sungai Mas (Site 32/34), Bujang Valley, Kedah

Zuliskandar Ramli — 2011-12-12

American Journal of Applied Sciences, Published online: 12 December 2011; doi:10.3844/ajassp.2012.196.201

Problem statement: The significance of Kampung Sungai Mas as an importance archaeology site in Lembah Bujang was revealed in the year 1979 when a cannel was built along Kampung Sungai Mas area. During...

Complexity of Cocktail Party Graph and Crown Graph

S. N. Daoud — 2011-12-12

American Journal of Applied Sciences, Published online: 12 December 2011; doi:10.3844/ajassp.2012.202.207

Problem statement: The number of spanning trees τ(G) in graphs (networks) was an important invariant. Approach: Using the properties of the Chebyshev polynomials of the second kind and the linear alg...

Pulse-Width-Modulation DC Chopper using LabView Software

Mohammad K. Abuzalata — 2011-12-12

American Journal of Applied Sciences, Published online: 12 December 2011; doi:10.3844/ajassp.2012.208.212

Problem statement: This study concerns with designing of Pulse Width Modulation (PWM) techniques and analyzing of their waveforms to initiate a comparative numerical study. Approach: This study enable...

Framework for Managing the Very Large Scale Integration Design Process

Sabah Al-Fedaghi — 2011-12-13

American Journal of Applied Sciences, Published online: 13 December 2011; doi:10.3844/ajassp.2012.213.222

Problem statement: The VLSI design cycle was described in terms of successive states and substages; it starts with system specification and ends with packaging. At the next descriptive level, currentl...

Guanxi and Ethics-A Study of Chinese Management Behaviour

Jane Tung — 2011-12-13

American Journal of Applied Sciences, Published online: 13 December 2011; doi:10.3844/ajassp.2012.223.226

Problem statement: The concept of guanxi being a developing concept and used in the Chinese organizational management had been a topic of concern and interest as well for several authors to experiment...

Investigation of the Critical Clearing Time of Power System with Synchronous Machine Model Including Saliency

Prechanon Kumkratug — 2011-12-21

American Journal of Applied Sciences, Published online: 21 December 2011; doi:10.3844/ajassp.2012.227.230

Problem statement: Most of synchronous generator applied in power system is the salient pole type. Most of previous researches use non-salient model to evaluate the critical clearing time. Thus the re...

Hot Resistance Estimation for Dry Type Transformer Using Multiple Variable Regression, Multiple Polynomial Regression and Soft Computing Techniques

M. Srinivasan — 2011-12-22

American Journal of Applied Sciences, Published online: 22 December 2011; doi:10.3844/ajassp.2012.231.237

Problem statement: This study presents a novel method for the determination of average winding temperature rise of transformers under its predetermined field operating conditions. Rise in the winding ...

Flow Based Algorithm

T. Karpagam — 2011-12-22

American Journal of Applied Sciences, Published online: 22 December 2011; doi:10.3844/ajassp.2012.238.239

Problem statement: Network topology design problems find application in several real life scenario. Approach: Most designs in the past either optimize for a single criterion like shortest or cost mini...

Analysis of Elastic-Plastic Contact Performance of Rigid Sphere Against a Deformable Flat-Effect of Strain Hardness

V.C. Sathish Gandhi — 2011-12-26

American Journal of Applied Sciences, Published online: 26 December 2011; doi:10.3844/ajassp.2012.240.245

Problem statement: The present study considers an elastic-plastic contact analysis of a rigid sphere with a deformable flat (Rigid Sphere-model) using finite element analysis. The effect of tangent mo...

A Simplified Two-Dimentional Unit Cell Model for Analyzing the Transverse Shear Stiffness of Three-Dimentional Truss-Like Core Sandwich Beam

Suphattharachai Chomphan — 2011-12-26

American Journal of Applied Sciences, Published online: 26 December 2011; doi:10.3844/ajassp.2012.246.249

Problem statement: In structural analysis using finite element software, a complex three-dimensional model affects the speed of calculation time. A simplified two-dimensional model should be used for ...

Study on Optical Constants and Refractive Index Dispersion of Neutral red Doped Polymer Film

Hussain A. Badran — 2011-12-26

American Journal of Applied Sciences, Published online: 26 December 2011; doi:10.3844/ajassp.2012.250.253

Problem statement: The some optical constants polymer thin film with red dye 3-amino-7-dimethylamino-2-methyl phenazine (NR) as the guest material and Polyvinylpyrrolidone (PVP) as the host material w...

A Review on Clustering and Outlier Analysis Techniques in Datamining

S. Koteeswaran — 2011-12-26

American Journal of Applied Sciences, Published online: 26 December 2011; doi:10.3844/ajassp.2012.254.258

Problem statement: The modern world is based on using physical, biological and social systems more effectively using advanced computerized techniques. A great amount of data being generated by such sy...

A Control of Fundamental Frequency Contour for Hidden Markov Model-Based Thai Speech Synthesis

Suphattharachai Chomphan — 2011-12-26

American Journal of Applied Sciences, Published online: 26 December 2011; doi:10.3844/ajassp.2012.259.264

Problem statement: In the conventional HMM-based speech synthesis system for Thai, there is no control of fundamental frequency control in the synthesis stage. The tone correctness of the synthesized ...

Preparation-Properties Relation of Mn-Cu Hopcalite Catalyst

Ardita Mele — 2011-12-26

American Journal of Applied Sciences, Published online: 26 December 2011; doi:10.3844/ajassp.2012.265.270

Problem statement: The Mn-Cu hopcalite catalyst was used for the conversion of CO to CO2 at low temperatures. It was the catalyst of choice in the gas masks for respiratory protection in mines, aircra...

Thai Speech Phonology for Development of Speech Synthesis: A Review

Suphattharachai Chomphan — 2011-12-27

American Journal of Applied Sciences, Published online: 27 December 2011; doi:10.3844/ajassp.2012.271.277

Problem statement: To implementation of the Hidden Markov Model (HMM)-based Thai speech synthesis system, it is necessary to understand the phonology system for a language. Without the phonological in...