Volume 7, Issue 6 (2010) | American Journal of Applied Sciences

Surface Modification of Polystyrene Beads by Ultraviolet/Ozone Treatment and its Effect on Gelatin Coating

A. N. Yusilawati — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.724.731

Problem statement: Polystyrene failed to provide any reactive functionality of surface hydrophilicity that is capable of binding proteins. It is known that polystyrene must be chemically modified to m...

Focusing of the Flow Capture for Local Exhaust Ventilation Systems

S. Y. Spotar — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.732.738

Problem statement: The extraction hoods commonly used as inlet element of the local ventilation systems exhibit limited emission capture over moderate distances from the source of the hazardous emiss...

Mechanism of Microencapsulation with Urea-Formaldehyde Polymer

Rochmadi — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.739.745

Problem statement: Microcapsule is one of important fine chemical products in the current chemical industries. Better understanding of microencapsulation process is useful to properly design of microc...

Upgrading of Bio-Oil into High-Value Hydrocarbons via Hydrodeoxygenation

Murni M. Ahmad — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.746.755

Problem statement: World energy consumption is forecasted to grow significantly for the foreseeable future with fossil fuel remains the governing energy source. The demand in the need to explore alter...

Homogeneous Bubbles during Jet Impingement Quenching

M. A. Islam — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.756.762

Problem statement: Jet impingement quenching has a very effective and large cooling potential and is a very effective means of cooling for many applications. It gives rise to heterogeneous and/or homo...

Minimum and Complete Fluidization Velocity for Sand-Palm Shell Mixtures, Part I: Fluidization Behavior and Characteristic Velocities

V. S. Chok — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.763.772

Problem statement: Palm shell on its original state cannot be fluidized solely. However, mixing palm shell with a second fluidizable material can facilitate proper fluidization. Approach: The minimum ...

Minimum and Complete Fluidization Velocity for Sand-Palm Shell Mixtures, Part II: Characteristic Velocity Profiles, Critical Loading and Binary Correlations

V. S. Chok — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.773.779

Problem statement: In Part I of this research, the main features of the fluidization behavior and characteristic velocities had been reported. Approach: In the present research, the mixtures character...

Numerical Solution of Second-Order Linear Fredholm Integro-Differential Equation Using Generalized Minimal Residual Method

Elayaraja Aruchunan — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.780.783

Problem statement: This research purposely brought up to solve complicated equations such as partial differential equations, integral equations, Integro-Differential Equations (IDE), stochastic equati...

Study on the Thermal Accumulation and Distribution Inside a Parked Car Cabin

Hussain H. Al-Kayiem — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.784.789

Problem statement: When a vehicle is parked under the direct sun, the accumulated heat is affecting many interiors inside the vehicle cabin, such as the vinyl materials of the dashboard, the leather c...

Quarter-Sweep Projected Modified Gauss-Seidel Algorithm Applied to Linear Complementarity Problem

W. S. Koh — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.790.794

Problem statement: Modified Gauss-Seidel (MGS) was developed in order to improve the convergence rate of classical iterative method in solving linear system. In solving linear system iteratively, it t...

Simulation of Heat Flow in Computational Method and Its Verification on the Structure and Property of Gray Cast Iron

S. K. Shaha — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.795.799

Problem statement: The solidification of materials depends on the cooling rate of the materials which is governed by heat flow in the mould and alloy composition. Solidification rate also affects the ...

Simulation of the Cuttings Cleaning During the Drilling Operation

Hussain H. Al-Kayiem — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.800.806

Problem statement: Oil well cleaning is the ability of a drilling fluid to suspend and transport drilled cuttings from the down hole (bit face) to the surface. The cleaning performance was affected by...

Effects of Total Ionizing Dose on Bipolar Junction Transistor

Chee Fuei Pien — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.807.810

Problem statement: The amount of ionizing radiation that Bipolar Junction Transistor (BJT) devices encounter during their lifecycle degrades both of their functional and electrical parameter performan...

Injection Molding of Titanium Alloy Implant For Biomedical Application Using Novel Binder System Based on Palm Oil Derivatives

R. Ibrahim — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.811.814

Problem statement: Titanium alloy (Ti6Al4V) has been widely used as an implant for biomedical application. In this study, the implant had been fabricated using high technology of Powder Injection Mold...

Surface Modification of Mild Steel Using Tungsten Inert Gas Torch Surface Cladding

S. Dyuti — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.815.822

Problem statement: There is an increasing demand for claddings which possess an optimized combination of different functional properties such as high hardness, high resistance to wear and oxidation. I...

Molecular Dynamics Studies of Human β-Glucuronidase

Ibrahim Ali Noorbatcha — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.823.828

Problem statement: The enzyme β-glucuronidase is being used as a reporter molecule in the area of genetic engineering, as a component of prodrug therapy in cancer treatment and in the scouring proces...

Effect of Different Uniform Temperature with Thickness-Wise Linear Temperature Gradient on Interfacial Stresses of a Bi-Material Assembly

D. Sujan — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.829.834

Problem statement: The thermal mismatch induced interfacial stresses are one of the major reliability issues in electronic packaging and composite materials. Consequently an understanding of the natur...

Synthesis of Gold (Au) Nanoparticles for Mercury Adsorption

Khairul Sozana Nor Kamarudin — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.835.839

Problem statement: Mercury is not only hazardous to human health and the environment but could also attack equipment components resulting in a mechanical failure and gas leakage. Approach: Describes t...

Web Structure Mining: Exploring Hyperlinks and Algorithms for Information Retrieval

P. Ravi Kumar — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.840.845

Problem statement: A study on hyperlink analysis and the algorithms used for link analysis in the Web Information retrieval was done. Approach: This research was initiated because of the dependability...

Sessile Drop Evaporation and Leidenfrost Phenomenon

A. K. Mozumder — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.846.851

Problem statement: Quenching and cooling are important process in manufacturing industry for controlling the mechanical properties of materials, where evaporation is a vital mode of heat transfer. App...

Eco-Efficient Product Design Using Theory of Inventive Problem Solving (TRIZ) Principles

Issac Lim Sing Sheng — 2010-06-30

American Journal of Applied Sciences, Published online: 30 June 2010; doi:10.3844/ajassp.2010.852.858

Problem statement: In recent years, much attention has been focused on the eco-efficiency of product development. The majority of environmental decisions are only made in the later stages of product...