Volume 9, Issue 3 (2012) | American Journal of Applied Sciences

Speech Compression for Noise-Corrupted Thai Dialects

Suphattharachai Chomphan — 2012-01-09

American Journal of Applied Sciences, Published online: 9 January 2012; doi:10.3844/ajassp.2012.278.282

Problem statement: Dialects of Thai are quite different in the speaking styles. Environmental noises play an important role in corrupting the communication speech quality. Two factors affect the cod...

Malware Detection Based on Hybrid Signature Behaviour Application Programming Interface Call Graph

Ammar Ahmed E. Elhadi — 2012-01-09

American Journal of Applied Sciences, Published online: 9 January 2012; doi:10.3844/ajassp.2012.283.288

Problem statement: A malware is a program that has malicious intent. Nowadays, malware authors apply several sophisticated techniques such as packing and obfuscation to avoid malware detection. That...

Secure Hybrid Mode-Based Cryptosystem

E. S. Ismail — 2012-01-12

American Journal of Applied Sciences, Published online: 12 January 2012; doi:10.3844/ajassp.2012.289.292

Problem statement: A cryptosystem provides two parties; a sender and a receiver to communicate interactively via an insecure channel in which, the sender is able to send any confidential message, do...

Thai Expressive Speech Processing Technology: A Review

Suphattharachai Chomphan — 2012-01-12

American Journal of Applied Sciences, Published online: 12 January 2012; doi:10.3844/ajassp.2012.293.299

Problem statement: The studies on Thai expressive speech or emotional speech have been conducted for years. Most of them are expected to analysis the characteristics of Thai expressive speech. However...

Exploring Optimal Topology and Routing Algorithm for 3D Network on Chip

N. Viswanathan — 2012-01-12

American Journal of Applied Sciences, Published online: 12 January 2012; doi:10.3844/ajassp.2012.300.308

Problem statement: Network on Chip (NoC) is an appropriate candidate to implement interconnections in SoCs. Increase in number of IP blocks in 2D NoC will lead to increase in chip area, global interco...

Bitrate Scalability for Multi-Pulse Based Code Excited Linear Prediction Speech Coder

Suphattharachai Chomphan — 2012-01-14

American Journal of Applied Sciences, Published online: 14 January 2012; doi:10.3844/ajassp.2012.309.312

Problem statement: The bitrate scalability is an important functionality that is defined in the Moving Picture Expert Group (MPEG-4) requirements. Since the traffic in a communication network varies...

Design of Tree Structure in Context Clustering Process of Hidden Markov Model-Based Thai Speech Synthesis

Suphattharachai Chomphan — 2012-01-14

American Journal of Applied Sciences, Published online: 14 January 2012; doi:10.3844/ajassp.2012.313.320

Problem statement: In HMM-based Thai speech synthesis, the tone degradation due to the imbalance of training data of all tones. Some distortion of syllable duration is obviously noticeable when the sy...

The Study of Evacuation Times from the Multiplex Theatres

Khanitha Songsakulchai — 2012-01-17

American Journal of Applied Sciences, Published online: 17 January 2012; doi:10.3844/ajassp.2012.321.326

Problem statement: The suniqueness of the Theatres in the Bangkok Metropolitan Area lies in the multiplex theatres. The enactment of law requires the theatre's entrepreneur to show the calculation l...

Residual Chromium in Leather by Instrumental Neutron Activation Analysis

S. Okoh — 2012-01-17

American Journal of Applied Sciences, Published online: 17 January 2012; doi:10.3844/ajassp.2012.327.330

Problem statement: Most tanning processes employ the use of chromium sulphate. For chromium tanned leather, finished products may contain high amount of residual chromium. This may pose some health ha...

A Unique Novel Approach for Design and Analysis of A Robust Decentralized Self-Tuning Fuzzy PI Controller for a Multi Input Multi Output Process

P. Sujatha Therese — 2012-01-17

American Journal of Applied Sciences, Published online: 17 January 2012; doi:10.3844/ajassp.2012.331.336

Problem statement: In the real world most of the controlled processes in industries are Multi-Input Multi-Output (MIMO) in nature.They have more than a single controlled variable that should be mani...

The Effects of Batch Reactor Extraction on Antioxidant Activity from Scurulla atropurpurea

Siti Irma Rahmawati — 2012-01-17

American Journal of Applied Sciences, Published online: 17 January 2012; doi:10.3844/ajassp.2012.337.342

Problem statement: The main active compounds of benalu teh’s include alkaloids and flavonoids, therefore antioxidant of it has big potential to develop. In the context of extraction, the traditional...

International Competitiveness of Korea Service Industry

Yoon-Doo Kim — 2012-01-21

American Journal of Applied Sciences, Published online: 21 January 2012; doi:10.3844/ajassp.2012.343.349

Problem statement: This study examines the competitiveness of Korean Service Industry through the empirical analysis based on the comparative advantage index and suggests the policy implications from ...

Analytical Study of High Pitch Delay Resolution Technique for Tonal Speech Coding

Suphattharachai Chomphan — 2012-01-23

American Journal of Applied Sciences, Published online: 23 January 2012; doi:10.3844/ajassp.2012.350.353

Problem statement: In tonal-language speech, since tone plays important role not only on the naturalness and also the intelligibility of the speech, it must be treated appropriately in a speech coder ...

Investigating the Critical Clearing Time of Power System with the Exact Medium Transmission Line Model

Prechanon Kumkratug — 2012-01-23

American Journal of Applied Sciences, Published online: 23 January 2012; doi:10.3844/ajassp.2012.354.357

Problem statement: The exact medium transmission line model consists of the resistance, series reactance and shunt capacitance. Most of previous research studies show the critical clearing time of sin...

Improvement of Tone Intelligibility for Average-Voice-Based Thai Speech Synthesis

Suphattharachai Chomphan — 2012-01-24

American Journal of Applied Sciences, Published online: 24 January 2012; doi:10.3844/ajassp.2012.358.364

Problem statement: Tone intelligibility in speech synthesis is an important attribute that should be taken into account. The tone correctness of the synthetic speech is degraded considerably in the av...

The Effect of R/X Ratio of the Short Transmission Line on Transient Stability

Prechanon Kumkratug — 2012-01-24

American Journal of Applied Sciences, Published online: 24 January 2012; doi:10.3844/ajassp.2012.365.367

Problem statement: The exact short transmission line model consists of the resistance and reactance. Most of previous researches study the transient stability of single machine infinite bus with negle...

Transient Stability of the Power System with the Exact Long Transmission Line Model

Prechanon Kumkratug — 2012-01-24

American Journal of Applied Sciences, Published online: 24 January 2012; doi:10.3844/ajassp.2012.368.371

Problem statement: The exact long transmission line model consists of the lump of the series resistance, reactance and shunt capacitance. With the consideration the actual long transmission line mode...

Interfragmentary Modulus

Boonthum Wongchai — 2012-01-26

American Journal of Applied Sciences, Published online: 26 January 2012; doi:10.3844/ajassp.2012.372.375

Problem statement: Young’s modulus and interfragmentary strain (εIF) are the important parameters in bone-plate testing and design. But Young’s modulus is not suitable when we use with εIF in th...

A Quantity Survey of Halon 1301

Supat Patvichaichod — 2012-01-26

American Journal of Applied Sciences, Published online: 26 January 2012; doi:10.3844/ajassp.2012.376.381

Problem statement: The objectives of this article were to survey the data of Halon 1301 user in Thailand in which the data was used to establish the guidelines of Halon management project. Approach: ...

Validation of MIKE 11 Model Simulated Data for Biochemical and Chemical Oxygen Demands Transport

Mahdieh Eisakhani — 2012-01-27

American Journal of Applied Sciences, Published online: 27 January 2012; doi:10.3844/ajassp.2012.382.387

Problem statement: The aim of the study was to model the discharge, biochemical and chemical oxygen demands (BOD and COD) loads in each cross section of Bertam River in Cameron Highlands, Malaysia. Ca...

Success in Business-A Brand Equity Perspective

Sheng Chung Lo — 2012-01-27

American Journal of Applied Sciences, Published online: 27 January 2012; doi:10.3844/ajassp.2012.388.391

Problem statement: The study has been mainly attempted to find out the impact of the brand equity in overall success of the firm. The research has primarily been created to present a study on the sign...

The Evaluation of Relative Efficiency of Teaching Hospitals

Fereshteh Farzianpour — 2012-01-27

American Journal of Applied Sciences, Published online: 27 January 2012; doi:10.3844/ajassp.2012.392.398

Problem statement: The main purpose of applying practical and scientific ways to evaluate the hospital’s performance and activities the optimal use of physical facilities ‘technology and the prese...

Numerical Simulation of Micro-Channel Heat Sink with Dimpled Surfaces

Suabsakul Gururatana — 2012-01-28

American Journal of Applied Sciences, Published online: 28 January 2012; doi:10.3844/ajassp.2012.399.404

Problem statement: The power density of electronic devices has been increasing along with the rapid technology development. Cooling off electronic systems is essential in controlling the component tem...

Stabilization of a Nonlinear Delay System

Walid Arouri — 2012-01-31

American Journal of Applied Sciences, Published online: 31 January 2012; doi:10.3844/ajassp.2012.405.416

Problem statement: The analysis and control of delayed systems are becoming more and more research topics in progress. This is mainly due to the fact that the delay is frequently encountered in techno...

Organizational Culture and Tourist Satisfaction in a Lake-Based Tourism Area

Nor’Aini Yusof — 2012-01-31

American Journal of Applied Sciences, Published online: 31 January 2012; doi:10.3844/ajassp.2012.417.424

Problem statement: Although many studies have highlighted that certain cultures are evident in certain firms, there are only few studies done on ecotourism areas and little has been done to analyse ho...

The Effect of Thyristor Controlled Series Capacitor on Transient Stability of Single Machine Infinite Bus System with the Exact Short Transmission Line Model

Prechanon Kumkratug — 2012-02-02

American Journal of Applied Sciences, Published online: 2 February 2012; doi:10.3844/ajassp.2012.425.428

Problem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues, costs of construction and dere...

The Computational Fluid Dynamic Simulation of Fire Evacuation from the Student Dormitory

Teeranon Saelao — 2012-02-02

American Journal of Applied Sciences, Published online: 2 February 2012; doi:10.3844/ajassp.2012.429.435

Problem statement: The aim of this research is to investigate the fire evacuation problem from the student dormitory by using the Numerical method. The Fire Dynamics Simulator Software was used in the...

Heat Transfer Augmentation for Electronic Cooling

Suabsakul Gururatana — 2012-02-02

American Journal of Applied Sciences, Published online: 2 February 2012; doi:10.3844/ajassp.2012.436.439

Problem statement: The performance of electronic devices has been improving along with the rapid technology development. Cooling of electronic systems is consequently essential in controlling the comp...

Design and Simulation of a Soft Switched Dc Boost Converter for Switched Reluctance Motor

X. Felix Joseph — 2012-02-02

American Journal of Applied Sciences, Published online: 2 February 2012; doi:10.3844/ajassp.2012.440.445

Problem statement: This study presents the design and simulation of a soft switched boost converter for a switched reluctance motor with a closed loop controller. A soft switching scheme is proposed i...

The Estimation of the Oxide Ion Polarizability for B₂O₃-Li₂O-Mo Glass System

El-Sayed Moustafa — 2012-02-02

American Journal of Applied Sciences, Published online: 2 February 2012; doi:10.3844/ajassp.2012.446.449

Problem statement: Recently Optical electro negativity of many binary oxide glasses has been evaluated on the basis of two different parameters, the linear refractive index and the energy gap, which h...