14 articles in this issue
Takaharu Nakagawa, Motonobu Goto
Thermosetting polyester resin used in fiber reinforced plastic (FRP) is very difficult to be recycled since it cannot be re-molded like thermoplastic resin. In recycling thermosetting polyester resin, subcritical water with alkali was applied to hydrolyze... see more
Pairote Sirinamaratana, Ekachai Leelarasmee
Automatic diagnosis through individual PV panel is especially required for hard to reach locations such as solar rooftop or exterior building. Therefore, a novel solution for diagnosing photovoltaic (PV) panels through their PV string is proposed. Our sol... see more
Nutdechatorn Puangngernmak, Kanokwan Sroykesorn, Tawiwan Kangsadan, Suramate Chalermwisutkul
The main objective of this study is the application of the microwave measurement technique to determine electrical characteristics of material with complex permittivity values in a frequency range from 100 MHz - 10 GHz. The measurement results represent t... see more
Is Fatimah, Dwiarso Rubiyanto, Thorikul Huda, Sri Handayani, Oryza Mutiara Ilahi, Septian Perwira Yudha
Nickel dispersed on sulfated zirconia pillared montmorillonite was prepared by three main steps; zirconia pillarization, sulfation and nickel dispersion. The synthesized material was characterized with FTIR spectroscopy, elemental analysis, x-ray diffract... see more
Mingkwan Wannaborworn, Thanai Sriphaisal, Piyasan Praserthdam, Bunjerd Jongsomjit
Ethylene/1-hexene copolymerization was performed over titania-supported zirconocene/dMMAO catalysts. Effects of titania having different phases on the catalytic activity and polymer properties were investigated. It was found that anatase titania exhibited... see more
Junkun Ma, Cris Koutsougeras
This work is about assessment of the single-ended evacuated tubular solar thermal collectors which are widely used in solar heating applications. Exchange and transfer of heat are accomplished by a thermosyphon process. The flow pattern of the working flu... see more
Nat Lertwongkhanakool, Natthawut Kertkeidkachorn, Proadpran Punyabukkana, Atiwong Suchato
Most studies in automatic synchronization of speech and transcription focus on the synchronization at the sentence level or the phrase level. Nevertheless, in some languages, like Thai, boundaries of such levels are difficult to linguistically define, esp... see more
Thapana Nampradit, David Banjerdpongchai
This paper presents a worst-case H8 performance analysis for Lur'e systems with time-invariant delays. The sucient condition to guarantee an upper bound of worst-case performance is developed based on the delay-partitioning Lyapunov-Krasovskii functional ... see more
Desmond Eseoghene Ighravwe, Sunday Ayoola Oke
End milling machining performance indicators such as surface roughness, tool wear and machining time are the principally indicators of machine tool industrial productivity, cost and competitiveness. Since accurate predictions and optimisations are necessa... see more
Sunitha Abburu, Suresh Babu Golla
The capability of semantic technology leads to adaption of semantic technology to multiple applications of various domains. Due to vast number of applications, the size of RDF triple store is increasing. Effective semantic query execution has become a cha... see more
Somchai Chuan-Udom
A transverse axial threshing unit is widely used in self-propelled combine harvesters in Thailand and the ASEAN region. The grain separating behaviour of this threshing unit affects the performance of the threshing unit and cleaning unit. This study aims ... see more
Oluwaseyi Ayodele Ajibade, Johnson Olumuyiwa Agunsoye, Sunday Ayoola Oke
There is paucity of data relating to the free swell properties of composite reinforcement materials in outdoor applications despite their undesirable tendency to absorb water. In this paper, a comparative performance analysis of three optimisation models ... see more
Ekkaphol Khansalee, Kittipong Nuanyai, Yan Zhao
Our cities are surrounded by a large number of radio frequency (RF) signals broadcasted by various wireless systems. In order to enhance the efficiency of energy usage in addition to the purpose of communication, ambient RF energy harvesting systems are d... see more
Mongkol Wongkhan, Soamsiri Chantaraskul
With the increasing demand on wireless sensor networks (WSNs) applications, acquiring the information of sensor node locations becomes one of the most important issues. Up to now, available localization approaches can be categorized into range-free and ra... see more