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Volume 16 Number 5 Year 2012

17 articles in this issue 

Somchat Amornlertpreecha, Takeshi Shiono, Bunjerd Jongsomjit

Different mesoporous titanias synthesized by hydrolysis and polycondensation reactions of tetrabutyl titanate with various hydrolysis ratios (H2O/Ti by mole) were employed as supports for zirconocene/MAO catalysts in ethylene/1-olefin copolymerization. Th... see more

Pags. 9 - 16  

Nattakarn Prasertsung, Alissara Reungsang, Chavalit Ratanatamskul

This study was demonstrated that the alkaline feeding in the anode chamber could enhance the electricity generation from a single chamber microbial fuel cell (SCMFC). The SCMFC was operated in batch mode. The substrate was cassava wastewater from a flour ... see more

Pags. 17 - 28  

Malee Tangsathitkulchai, Chaiyot Tangsathitkulchai, Kamonchanok Wongsooksin, Saowanee Chuyingsakuntip

The crude dye extracted from the heartwood of Ceasalpinia sappan Linn. was reacted with alum to form a solution containing a cationic dye complex of [Al(brazilien)2]+ and used for the dyeing of silk yarn. The dye solution left after dyeing was treated wit... see more

Pags. 29 - 44  

Pattamad Panedpojaman

Blast walls with partially fixed support have been used to limit impacts of pressure due to an explosion. As design criteria, the dynamic response of blast wall systems in terms of their pressure load-displacement relationship is considered. In addition t... see more

Pags. 45 - 56  

Wipawee Tharmmaphornphilas, Haruetai Lohasiriwat, Pathompol Vannasetta

The global gold market has recently attracted a lot of attention and the price of gold is relatively higher than its historical trend. This paper constitutes the first exercise of system dynamics applied to gold price in monthly frequency from January 201... see more

Pags. 57 - 68  

Pijush Samui, Dwarkadas Pralhaddas Kothari

This study uses multivariate adaptive regression spline (MARS) for determination of maximum shear modulus (Gmax) and minimum damping ratio (?min) of synthetic reinforced soil. MARS employs confining pressure (s, psi), rubber (r, %) and sand (s, %) as inpu... see more

Pags. 69 - 78  

Pejman Rezakhani

Risk factor selection is an important step in a successful risk management plan. There are many risk factors in a construction project and by an effective and systematic risk selection process the most critical risks can be distinguished to have more atte... see more

Pags. 79 - 94  

Teeratat Charoenkalunyuta, Chalermchon Satirapod, Hung-Kyu Lee, Yoon-Soo Choi

Thailand has established a Network-based Real Time Kinematic (NRTK) GPS system using the Virtual Reference Station (VRS) concept since 2008. Currently, the Thai NRTK consists of 11 reference stations located in the central part of Thailand with averaged r... see more

Pags. 95 - 104  

Abdul Hakim Abdullah, Siti Khadijah Alias, Norhisyam Jenal, Khalina Abdan, Aidy Ali

Towards green material, fatigue life of epoxy and its unidirectional kenaf fibre reinforced epoxy composites were investigated. These specimens were hand lay-out made. The specimens were cycled to tension-tension fatigue loading at stress ratio of 0.5 and... see more

Pags. 105 - 114  

Murugeswari Palanivel, Manimegalai Duraisamy

Segmentation is an essential process in image because of its wild application such as image analysis, medical image analysis, pattern reorganization, etc. Color and texture are most significant low-level features in an image. Normally, color-textured imag... see more

Pags. 115 - 126  

Mofreh Saleh

Mechanistic Empirical pavement design has been adopted by New Zealand and Australia for more than a decade ago and recently by many other countries around the world. The detailed procedures for the mechanistic empirical analysis are detailed in the Austro... see more

Pags. 127 - 136  

Khin Mya Lwin, Moe Moe Myint, Tar Tar, Wai Zin Moe Aung

18 rhizobacteria were isolated from various rhizospheric soils in Mandalay region, Myanmar and some of their biochemical characteristics were studied. Among them, 4 isolates belonged to Bacillus spp. and another 5 strains were recognized as Serratia spp. ... see more

Pags. 137 - 144  

Panatpong Boonnoun, Thanawich Opaskonkun, Phattanon Prasitchoke, Motonobu Goto, Artiwan Shotipruk

Marigold is a rich source of a Xanthophyll called lutein, which shows anti-oxidant and anti-cancer activities and is beneficial to eye health. This has led to various extractions and purification studies to obtain the high purity free lutein suitablefor h... see more

Pags. 145 - 156  

Chattip Prommuak, Prasert Pavasant, Armando T. Quitain, Motonobu Goto, Artiwan Shotipruk

This work examined solvent extraction of lipid from microalgae for production of renewable biofuels, thereby allowing appropriate selection of solvent and extraction methods. The results of this study revealed that the mixture of chloroform and methanol (... see more

Pags. 157 - 166  

Wiratni Budhijanto, Chandra Wahyu Purnomo, Nobel Christian Siregar

Experiments were conducted in a horizontal continuous biodigester constructed of 12" ID PVC pipe of 4 m, 5 m, and 6 m length to produce biogas from cow manure slurry. Mathematical models were developed based on simplified mechanism of anaerobic digestion ... see more

Pags. 167 - 176  

Huzairy Hassan, Khairiah Abd Karim

The production of alpha-amylase by Bacillus subtilis was investigated under different cultivation conditions on two different solid substrates as the support, i.e. oil palm empty fruit bunch (OPEFB) and rice straw fibers using solid state fermentation (SS... see more

Pags. 177 - 186