Uttaradit Rajabhat University or URU is a Thai public university under the Rajabhat system. The campus is located just within of Uttaradit, a small city north of Bangkok. It was established in 1936 in the name of The Uttaradit Teachers College Uttaradit. Rajabhat University is the first university of Uttaradit ProvinceOn 14 June 2004, all Rajabhat institutes nationwide were graciously upgraded by His Majesty the King, who signed the Rajabhat University Act, B.E 2547 , which was announced in the Royal Gazette for implementation starting from 15 June 2004. This promoted all Rajabhat institutes to become a Rajabhat University, a closely knitted group of Thai universities dedicated to the preservation of Thai heritage and subject to the National Tertiary Education Commission of the Ministry of Education. Wikipedia.
PubMed | Uttaradit Rajabhat University, Ubonratchathani Rajabhat University, Khon Kaen University and Lincoln University at Christchurch
Type: | Journal: Research in sports medicine (Print) | Year: 2017
The purpose of this study was to compare the effect of elastic tape (Kinesio tape) to placebo tape or static stretching on delayed onset muscle soreness. Fifty-one untrained female healthy volunteers were randomly assigned into three groups (n=17/group), elastic tape, placebo tape and stretching group. Muscle soreness was induced by 4 sets of 25 maximal isokinetic (60.s
Kumfu S.,Uttaradit Rajabhat University |
Jintakosol T.,Srinakharinwirot University
Advanced Materials Research | Year: 2012
The objective of this study was to investigate the thermal property of thermal insulation board produced from admixtures of pineapple leaf fiber and natural rubber latex at different proportion level and the thermal property was evaluated based on the American Society for Testing Materials standard. Thermal insulation boards were fabricated using a hot pressing technique at a temperature of 150 °C under a pressure of 100 kg/cm 2 for 5 min to form a squared thermal insulation with the size of 35 cm and 0.9 cm thickness. The thermal conductivity of the thermal insulation was 0.057 W/m K with density of 338 kg/m 3. The success of this study primarily proclaims a high feasibility of producing thermal insulation from pineapple leaf fiber and natural rubber latex as a substitute for synthetic fiber. © (2012) Trans Tech Publications.
Jintakosol T.,Srinakharinwirot University |
Kumfu S.,Uttaradit Rajabhat University
Advanced Materials Research | Year: 2012
This research presented the studies on the production and properties of thermal insulation produced from durian peel fiber and natural rubber latex. The thermal insulation were made by spray the pre-treated natural rubber latex onto durian peel fiber in the fiber: binder ratios of 1:2, 1:3 and 1:4 to form squared thermal insulation with the size of 20 cm and 1.5 cm thickness. Thermal conductivity measured in accordance with American Society for Testing Materials standard was found to be 0.026 W/m K with density of 143 kg m -3 which closed to the commercial insulator. The success of this study shown that the thermal insulation made from durian peel fiber and natural rubber latex exhibited a good thermal insulation and extremely potential to instead of the synthesis fibrous insulator. © (2012) Trans Tech Publications.
Kittl R.,University of Natural Resources and Life Sciences, Vienna |
Mueangtoom K.,Uttaradit Rajabhat University |
Mueangtoom K.,Austrian Center of Industrial Biotechnology |
Gonaus C.,University of Natural Resources and Life Sciences, Vienna |
And 6 more authors.
Journal of Biotechnology | Year: 2012
Fungal laccases from basidiomycetous fungi are thoroughly investigated in respect of catalytic mechanism and industrial applications, but the number of reported and well characterized ascomycetous laccases is much smaller although they exhibit interesting catalytic properties. We report on a highly chloride tolerant laccase produced by the plant pathogen ascomycete Botrytis aclada, which was recombinantly expressed in Pichia pastoris with an extremely high yield and purified to homogeneity. In a fed-batch fermentation, 495mgL -1 of laccase was measured in the medium, which is the highest concentration obtained for a laccase by a yeast expression system. The recombinant B. aclada laccase has a typical molecular mass of 61,565Da for the amino acid chain. The pI is approximately 2.4, a very low value for a laccase. Glycosyl residues attached to the recombinant protein make up for approximately 27% of the total protein mass. B. aclada laccase exhibits very low K M values and high substrate turnover numbers for phenolic and non-phenolic substrates at acidic and near neutral pH. The enzyme's stability increases in the presence of chloride ions and, even more important, its substrate turnover is only weakly inhibited by chloride ions (I 50=1.4M), which is in sharp contrast to most other described laccases. This high chloride tolerance is mandatory for some applications such as implantable biofuel cells and laccase catalyzed reactions, which suffer from the presence of chloride ions. The high expression yield permits fast and easy production for further basic and applied research. © 2011 Elsevier B.V.
Pinyaphong P.,Uttaradit Rajabhat University |
Sriburi P.,Chiang Mai University |
Phutrakul S.,Chiang Mai University
World Academy of Science, Engineering and Technology | Year: 2011
In this paper, naturally immobilized lipase, Carica papaya lipase, catalyzed biodiesel production from fish oil was studied. The refined fish oil, extracted from the discarded parts of fish, was used as a starting material for biodiesel production. The effects of molar ratio of oil: methanol, lipase dosage, initial water activity of lipase, temperature and solvent were investigated. It was found that Carica papaya lipase was suitable for methanolysis of fish oil to produce methyl ester. The maximum yield of methyl ester could reach up to 83% with the optimal reaction conditions: oil: methanol molar ratio of 1: 4, 20% (based on oil) of lipase, initial water activity of lipase at 0.23 and 20% (based on oil) of tert-butanol at 40°C after 18 h of reaction time. There was negligible loss in lipase activity even after repeated use for 30 cycles.
Tangjuank S.,Uttaradit Rajabhat University
International Journal of Physical Sciences | Year: 2011
The aims of this research were to study the production processes and properties of thermal insulation produced from pineapple leaves using natural rubber latex as a binder. Thermal insulation boards were made by spraying the pretreated natural rubber latex onto pineapple fiber to form a squared thermal insulation with the size of 20 and 1.5 cm thickness. Test results on thermal and physical properties showed that the thermal insulation produced from pineapple leaves fiber exhibited a considerably good thermal insulation. The thermal conductivity of the thermal insulation was 0.035 W/m.K with density of 210 kg/m3, which was closed to the commercial insulator. The result showed that pineapple fibrous insulator was extremely potential to replace the synthesis fibrous insulator. © 2011 Academic Journals.
Kanyamee K.,King Mongkut's University of Technology Thonburi |
Kanyamee K.,Uttaradit Rajabhat University |
Sathitwiriyawong C.,King Mongkut's University of Technology Thonburi
International Arab Journal of Information Technology | Year: 2014
This paper proposes two versions for the implementation of a novel High-Availability Decentralized cryptographic Multi-agent Key Recovery System (HADM-KRS) that do not require a key recovery centre: HADM-KRSv1 and HADM-KRSv2. They have been enhanced from our previous work and entirely comply with the latest key recovery system in the National Institute of Standards and Technologies (NIST's) framework. System administrators can specify the minimum number of Key Recovery Agents (KRAs) according to security policies and requirements while maintaining compliance with legal requirements. This feature is achieved by applying the concept of secret sharing and power set to distribute the session key to participating KRAs. It uses the principle of secure session key management with an appropriate design of key recovery function. The system is designed to achieve high availability despite the failure of some KRAs. The performance evaluation results show that the proposed systems incur little processing times. They provide a security platform with good performance, fault tolerance, and robustness in terms of secrecy and availability.
Chanapromma C.,Uttaradit Rajabhat University |
Daoden K.,Uttaradit Rajabhat University
ICSPS 2010 - Proceedings of the 2010 2nd International Conference on Signal Processing Systems | Year: 2010
A low-power, low-voltage CMOS fully differential operational transconductance amplifier (OTA) operating in weak inversion region is presented in this paper. The proposed element allows the use of very small current for low-power and low-voltage features. The performances are examined through PSPICE simulations, displaying usabilities of the new active element. The power consumption is about 221nW at ±0.75V and bias current IB is 50nA. The description includes example as a balance output full-wave rectifier. © 2010 IEEE.
Srisakul T.,Phitsanulok Technical College |
Silapan P.,Uttaradit Rajabhat University |
Siripruchyanun M.,King Mongkut's University of Technology Bangkok
ECTI-CON 2011 - 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 | Year: 2011
A new current-mode triangular/square wave generator based on MO-CCCCTAs (Multiple output current controlled current conveyor transconductance amplifiers) is presented in this paper. The circuit description is very simple, its construction consists of 2 MO-CCCCTAs and 1 grounded capacitor without any external resistor. The output frequency and amplitude can be electronically/independently tuned via corresponding input bias currents. With mentioned features, it is very suitable to realize in a monolithic chip. The PSpice simulation results are depicted, and agree well with the theoretical anticipation. The maximum power consumption is approximately 1.62mW at ±1.5V power supply. © 2011 IEEE.
Inchan I.,Uttaradit Rajabhat University
Nonlinear Analysis: Hybrid Systems | Year: 2011
In this paper, we introduce an iterative scheme by the hybrid methods for finding a common element of the set of fixed points of nonexpansive mappings, the set of solutions of an equilibrium problem and the set of solutions of a variational inequality problem in a Hilbert space. Then, we prove the strongly convergent theorem by a hybrid extragradient method to the common element of the set of fixed points of nonexpansive mappings, the set of solutions of an equilibrium problem and the set of solutions of a variational inequality problem. Our results extend and improve the results of Bnouhachem et al. [A. Bnouhachem, M. Aslam Noor, Z. Hao, Some new extragradient iterative methods for variational inequalities, Nonlinear Analysis (2008) doi:10.1016/j.na.2008.02.014] and many others. © 2010 Elsevier Ltd.