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Bangkok, Thailand

Ramkhamhaeng University is one of two open universities in Thailand. The university was named in honour of King Ramkhamhaeng the Great of Sukhothai, who traditionally is credited for creating the Thai alphabet.Before the establishment of Ramkhamhaeng University in 1971, Thailand had what has been described as "a crisis in the quest for higher education", since the number of high school graduates seeking competitive place in the government universities far outnumbered the capacity of all universities combined. Parliament finally passed a law authorizing the establishment of Ramkhamhaeng University, the kingdom's first open-admission university.The university is composed of the Faculties of Law, Business Administration, Humanities, Education, Science, Political Science, Economics, Engineering, and Education Technology. The Faculty of Engineering admits a limited number of students, while other faculties are open to anyone who wishes to enroll.Ramkhamhaeng University has two major campuses, both in Bangkok. Freshman classes are held at Bang Na campus in Phra Khanong District. Most others classes are conducted at the main campus at Hua Mak, Bang Kapi District. Wikipedia.

Niamnont N.,Chulalongkorn University | Mungkarndee R.,Chulalongkorn University | Techakriengkrai I.,Ramkhamhaeng University | Rashatasakhon P.,Chulalongkorn University | Sukwattanasinitt M.,Chulalongkorn University
Biosensors and Bioelectronics | Year: 2010

A protein fluorescent sensor array based on variously charged dendritic fluorophores is developed. The variation of charge is achieved by different combinations of cationic trimethylammonium, anionic carboxylate and non-ionic methyl ester or N,N-dimethylamino on the peripheries of the fluorophores. Nine phenylene-ethynylene dendritic fluorophores, seven zeroth generation bearing charges varied from -3 to +3 and two first generation bearing -6 and +6 charges, are synthesized from triiodotriphenylamine through series of Sonogashira coupling. In phosphate buffer saline pH 7.4, five out of these nine compounds fluorogenically response to eight protein analytes distinctively. The data set of fluorescent intensities obtained from 5 fluorophores × 8 proteins × 9 replicated measurements can be statistically sorted into eight clusters corresponding to each protein by principal component analysis (PCA). Factorial discriminant analysis (FDA) cross-validation is applied to locate the optimum detection wavelength and reduce the number of sensing elements from nine to two with 100% discriminating accuracy. The method described should be generally practical for the development of electronic tongue for protein related food analysis and medical diagnosis. © 2010 Elsevier B.V. Source

Foithong S.,King Mongkuts University of Technology Thonburi | Pinngern O.,Ramkhamhaeng University | Attachoo B.,King Mongkuts University of Technology Thonburi
Expert Systems with Applications | Year: 2012

In this paper, we introduced a novel feature selection method based on the hybrid model (filter-wrapper). We developed a feature selection method using the mutual information criterion without requiring a user-defined parameter for the selection of the candidate feature set. Subsequently, to reduce the computational cost and avoid encountering to local maxima of wrapper search, a wrapper approach searches in the space of a superreduct which is selected from the candidate feature set. Finally, the wrapper approach determines to select a proper feature set which better suits the learning algorithm. The efficiency and effectiveness of our technique is demonstrated through extensive comparison with other representative methods. Our approach shows an excellent performance, not only high classification accuracy, but also with respect to the number of features selected. © 2011 Elsevier Ltd. All rights reserved. Source

Surapong P.,Ramkhamhaeng University
BMEiCON 2015 - 8th Biomedical Engineering International Conference | Year: 2016

A small current through low frequency is able to treat patients by attenuating or malfunctioning mechanism of microbes which flow through the blood. In addition, the performance delivery of oxygen and nutrients in blood are improved. With the advance, blood viscosity and hematocrit are coincidentally approached to normal level, adaptive flow-rate. This paper proposes the conceptual design of an electrotherapeutic device used for modality application. The design is based on a certain square wave varied from 4 to 5 Hz with a stimulating current and voltage adapted from 0.241mA to 1.027mA and from 15Vpp to 64Vpp, respectively. Applying the wave form to blood model in testing environment, the experimental results show that the viscosity is reduced to satisfy level. © 2015 IEEE. Source

Sutthacheep M.,Ramkhamhaeng University
Phuket Marine Biological Center Research Bulletin | Year: 2012

The impact of elevated water temperatures in May-August 2010 on coral assemblages at Kut Island, in the eastern Gulf of Thailand was assessed by quantifying the changes of live coral cover before and after the 2010 bleaching phenomenon at three study sites. The coral mortality as a result of the bleaching varied significantly among the three study sites. Corals at Ao Kralang had the highest percentage mortality (45%) whereas Ao Phrao had the lowest (26%), the latter site being subject to relatively high water-flow. Substantial differences in mortality were found among coral taxa. Fungiids showed the lowest percentage mortality (<5%) while all observed colonies of Montipora spp., Acropora spp. and Pocillopora damicornis completely died. Recovery of these corals will depend on recruitment from neighboring reefs where some surviving colonies were observed. Source

Yeemin T.,Ramkhamhaeng University
Phuket Marine Biological Center Research Bulletin | Year: 2012

We examined the survival of juvenile coral colonies following the 2010 coral bleaching event at eight study sites in the Similan Islands, the Andaman Sea. Density of juvenile corals differed significantly between time, location and major genera. The lowest bleaching impact on juvenile coral colonies was recorded at Christmas Point Rock, a deep study site (20-25m) on the west of the Similan Islands.Most juvenile coral colonies of Pavona spp., Diploastrea heliopora, Leptastrea spp. and Cyphastrea spp. were the least impacted. There was also high survival of juvenile coral colonies of Goniastrea spp., Fungia spp., Acropora spp. and Porites spp. and large coral colonies (>5 cm diameter) of Dendrophyllia micranthus, Fungia fungites and Porites lutea. The findings of this study suggest a high potential for coral recovery at temporarily closed diving sites because of the large number of juvenile colony survivors. It is necessary to implement science-based management plans for marine protected areas to cope with climate change and anthropogenic disturbances. Source

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