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Volume 23 Number 1 Year 2019

13 articles in this issue 

Romsan Madmanang, Tongchai Sriwiriyarat

Enterobacter aerogenes was found recently as a high capacity bacterium for degrading acrylamide (AM) in the culture media.  The AM biodegradation was inhibited by free ammonia nitrogen due to the failure of heterotrophic nitrification in the sequenci... see more

Pags. 1 - 12  

Arthit Phuphaphud, Khwantri Saengprachatanarug, Jetsada Posom, Seree Wongpichet, Kanvisit Maraphum, Eizo Taira

Precision of spectroscopic methods were frequently affected by the identity of the inhomogeneous materials, especially for direct scanning. This research aimed to investigated effects of waxy types, naturally founded on cane surface, on spectral character... see more

Pags. 13 - 24  

Chanyarak Watthanachai, Chawalit Ngamcharussrivichai, Somchai Pengprecha

Bimodal mesoporous silica (BMS) was obtained by synthesizing a silica derived from rice husk ash (RHA) with the structure-directing agents (Pluronic P123 and CTAB) using the sol-gel technique. RHA from biomass power plant was extracted with NaOH. The char... see more

Pags. 25 - 34  

Apiwat Ratanawaraha, Saksith Chalermpong, Paniti Samnakorn

In urgent response to an unenvied label as the world’ second worst road safety record, the Thai government has begun to ban the use of vans and double-decker buses for intercity bus services and is considering to change the legal status requirement of ent... see more

Pags. 35 - 47  

Patanapong Sanghatawatana, Pongsa Pornchaiwiseskul, Manoj Lohatepanont

This research studies the distribution network redesign of an actual electronics company. The problems are formulated based on multi-echelon capacitated Location Routing Problem (LRP) with two commodities: home products and service items. The objective fu... see more

Pags. 49 - 74  

Manuel De la Sen, Asier Ibeas

Positive realness is a very important tool for the achievement of hyperstability and passivity of dynamic systems. This paper is devoted to extend some positive realness results of transfer functions in the presence of point-delayed delayed dynamics. Suff... see more

Pags. 75 - 94  

Pantawee Pantaweesak, Phongpat Sontamino, Danupon Tonnayopas

Nowadays, tunneling is applied to a variety of constructions such as subway station, water supply tunnel and underground mine. Tunnel safety is one of the most important factors of construction. Most tunneling is operated in remote area that is difficult ... see more

Pags. 95 - 108  

Hala Aqeel Hamid, Shatha D. Mohammed

This paper presents calculations to determine the flexural moment capacity of Reactive Powder Concrete (RPC) two-way slabs depending on three models from previous studies (Model 1, Model 2, and Model 3). The outcomes of these calculations were compared wi... see more

Pags. 109 - 121  

Md Samdani Azad, Wonsiri Punurai, Chana Sinsabvarodom, Pornpong Asavadorndeja

Steel jacket offshore platforms are typically employed for shallow to moderate water depth. During the platform operation, there are some historical accidents of the complete damages for the diagonal members of the bracing systems owing to explosion, fire... see more

Pags. 123 - 133  

Kimleng Khy, Chatpan Chintanapakdee, Anil C. Wijeyewickrema

The uniform hazard spectrum (UHS) and conditional mean spectrum (CMS) are commonly used as target spectra in selecting and scaling of records to be used in nonlinear response history analysis (NLRHA). When using CMS with tall buildings, CMS ground motions... see more

Pags. 135 - 150  

Takashi Nakamura, Shun Murakami, Lun Sambo, Hideto Fujii

A new 2D numerical model is developed for a rapid computation of the seasonal inundation phenomena in Tonle Sap Lake in Cambodia. In order to overcome a huge computational cost for a prolonged analysis over an extensive area, the General-Purpose computing... see more

Pags. 151 - 169  

Pinnarat Nuchpho, Santirat Nansaarng, Adisak Pongpullponsak

Failure mode and effects analysis (FMEA) consists of the famous qualitative management methods used for improvements in management processes. This paper aims to determine the factors of defective products in the processing of poultry products in the indus... see more

Pags. 171 - 190  

Naragain Phumchusri, Supasit Tangsiriwattana

This research proposes a mathematical model for supplier selection for a case-study car seat manufacturer. This research is divided into 2 parts. The first part is the raw material supplier evaluation method using Analytic Hierarchy Process. This part wei... see more

Pags. 191 - 203