Bangkok, Thailand

Bangkok Thonburi University
Bangkok, Thailand

Bangkok Thonburi College is a higher education institute located in Thawi Watthana District, Bangkok, Thailand. Founded in 2002, the college offers undergraduate and graduate studies in business administration, law, political science, science, and education. Wikipedia.

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Panomruttanarug B.,Bangkok Thonburi University
International Journal of Automotive Technology | Year: 2017

Intelligent parking assist systems will soon be available for most vehicles on the market. Many optimal parking trajectories and control strategies have been proposed for reverse parking. However, most of these require intensive computation, causing difficulties in practical use. This paper makes use of a classical path planning method to find the shortest parking path, and establishes the possibility of integrating iterative learning control (ILC) to exploit the capability of learning from experience to track the designed path. The effectiveness of the ILC structure is demonstrated by simulation and experiments. Tracking performance is shown to be much improved by using a simple learning control law. © 2017, The Korean Society of Automotive Engineers and Springer-Verlag GmbH Germany.

Pamanikabud P.,Bangkok Thonburi University | Tansatcha M.,Ministry of Interior
Applied Acoustics | Year: 2010

This study analyzes and investigates the impact of traffic noise on the high-rise building and surrounding area by the side of a new motorway that links Bangkok to the new Suwannaphum International Airport and Pattaya. A traffic noise simulation model in 3D form is applied on a GIS system. Visualized noise levels are formulated in vectored contours for noise mapping on all surfaces of the building and surrounding ground in a 3D platform. Noise impact is then investigated based on this 3D noise mapping in LAeq,1 h noise contours. The investigation shows that there is a high traffic noise impact on the foreground and front faade of the building, rendering this area unsuitable for residential purposes. The ground area by the sides of the building and the building side panels receive a lower noise impact. Most of these areas are still not acceptable for residential use; however, all of the side panels and most of the ground area by the sides of the building can be used for commercial and business purposes. The back yard and back panel, together with the rooftop, have the lowest traffic noise impact. They are the safest places for use as residential areas, except for a small strip along the front edge of the rooftop. From this study, residential areas that are sensitive to noise impact must be located far away from the front faade and side panels of a building. It is also shows that the building height is not an effective means of reducing motorway noise on the upper part of the building. © 2010 Elsevier Ltd. All rights reserved.

Kaewprapan W.,Bangkok Thonburi University
Lecture Notes in Electrical Engineering | Year: 2016

Electronic games can be a powerful educational and entertainment platform. However, blind people cannot typically access these advantages because most games are primarily visually oriented and designed for persons with normal vision. This research is focused on understanding how the visually impaired relate to and interact with electronic games as well as their preferences for gameplay. This research also involved some preliminary, basic development towards a game environment and scenario for the visually impaired to participate in electronic/ computer game play. This research is a step towards the goal of the visually impaired having access to this mode of entertaining, mentally stimulating and engaging education that is available widely to persons with normal visual ability. The results of the data collected during this research with 40 participants at the school for the blind, Bangkok, led us to the conclusion that the visually impaired sample could derive enjoyment and benefit from electronic games to a similar degree that normal sighted people do when the games are adapted or created with their special needs in mind or have features that can compensate for visual impairment. We also determined the types of games that the visually impaired sample had the most interest in: action, adventure and racing games. © Springer International Publishing Switzerland 2016.

The fundamental questions of how cells control growth and respond to stresses have captivated scientists for years. Despite the complexity of these cellular processes, we could approach this puzzle by asking our favorite model yeast, Saccharomyces cerevisiae, how it makes a critical decision to either proliferate, to rest in a quiescent state or to program itself to die. This review highlights the essentiality of transcriptional factors in the reprogramming of gene expression as a prime mechanism of cellular stress responses. A whelm of evidence shows that transcriptional factors allow cells to acquire appropriate and unified responses to the transmitted signals. They function to modulate pathway-specific gene expression and organize transcriptomic responses to the altered environments. This review is aimed to summarize current knowledge on the roles of novel and well-known yeast transcription factors in the control of growth and stress responses during glucose deprivation as a prototypical case study. The scope includes stress sensing, transcription factors’ identity, gene regulation and proposed crosstalks between pathways, associated with stress responses. A complex commander system of multiple stress-responsive transcription factors, observed here and elsewhere, indicates that regulation of glucose starvation/diauxic shift is a highly sophisticated and well-controlled process, involving elaborative networks of different kinase/target proteins. Using S. cerevisiae as a model, basic genetic research studies on gene identification have once again proved to be essential in the comprehension of molecular basis of cellular stress responses. Insights into this fundamental and highly conserved phenomenon will endow important prospective impacts on biotechnological applications and healthcare improvement. © 2016 Springer-Verlag Berlin Heidelberg

Lenwari W.,Bangkok Thonburi University
ICCAS 2010 - International Conference on Control, Automation and Systems | Year: 2010

The repetitive or learning based control has proven to achieve high steady-state performances for control systems. The iterative learning algorithm aims to accomplish zero tracking error without full knowledge of the system model. However, its dynamic behaviors were not satisfied in some conditions particularly under non-periodic disturbances since the control uses the information from the previous iteration to calculate the system input. This paper proposes the investigation of the use of genetic algorithm to optimize the learning gain of a simple proportional-type (P-type) learning control applied to current control for shunt active filters. The merit of the proposed control is its simplicity, potentially suitable for commercial active filters. All design concepts are verified and the results obtained in the simulation confirm the improvement in the dynamic responses during the transient condition while the harmonic control accuracy in steady-state can remain excellent with the proposed control system. ©ICROS.

Mahian O.,Islamic Azad University at Mashhad | Wongwises S.,Bangkok Thonburi University
Science and Engineering Ethics | Year: 2015

By following the recently published paper in Science titled “Coercive Citation in Academic Publishing”, in this paper, we aim to discuss the demand of some journals that request authors to cite recently published papers in that journal to increase the impact factor of that journal. It will be mentioned that some of these demands are not ethical and consequently will diminish the reputation of the journal. © 2014, Springer Science+Business Media Dordrecht.

Dejtrakulwong C.,Bangkok Thonburi University | Patumsawad S.,King Mongkut's University of Technology Bangkok
Energy Procedia | Year: 2014

A mathematical model of a biomass downdraft gasification process has been developed. The model was considered to be four modules that are drying, pyrolysis, oxidation, and reduction which the products of upper module will be the reactants of the next. The one-dimensional kinetic finite rate models were applied to drying and reduction modules. The pyrolysis model took place when drying temperature reached 473 K. The equilibrium sequence model was used to describe the oxidation process by considering the sequence of order of reaction rates. For the model validation the comparison showed a good agreement. In the parametric study the moisture content increasing affected the height of drying, and pyrolysis zones increasing while the critical char bed length of reduction zone decreased from 0.53 to 0.25 m. The height of these zones decreased along A/F increasing. The results of this study can be used in the reactor design evaluation. © 2014 Published by Elsevier Ltd.

Kaewkamnerdpong B.,Bangkok Thonburi University
Smart Innovation, Systems and Technologies | Year: 2016

In ageing society, it is not only that we need better care and treatment to maintain the quality of life of elderly population but also need better ways to strengthen the development of our children so that we could live in a healthy ageing society. This study proposed a framework for human learning ability study by using multimodal neuroimaging through simultaneous EEG/fNIRS measurement and neuroinformatics to understand target learning ability in laboratory and using portable EEG device to monitor real-time brain state for evaluating the learning/teaching methods introduced for improving the target learning ability in learning environment. By incorporating neuroscience approach in both laboratory and learning environment, not only scientific findings from neuroscience studies could give implications to educators to improve students’ learning, but also the developed learning/teaching methods could be assessed their effectiveness in classroom practice. This framework may help contribute in bridging the gap between neuroscience and education, which is the aim of educational neuroscience. Toward smart education, the proposed conceptual framework deploys truly brain-based learning/teaching approach to enhance students’ learning to better acquire the knowledge and cognitive skills. © Springer International Publishing Switzerland 2016.

Boributh S.,Bangkok Thonburi University | Jiraratananon R.,Bangkok Thonburi University | Li K.,Imperial College London
Journal of Membrane Science | Year: 2013

The analytical solutions for calculating the average wetting ratio, 〈x*〉, for gas-liquid membrane contacting process based on log-normal and normal distribution functions have been developed. By using the membrane characteristics, liquid absorbent properties and operating conditions, the average wetting ratio is determined analytically. The overall mass transfer coefficient (KG) corresponding to the average wetting ratio is also calculated. Due to the pressure drop of liquid flow in the fiber, the operation mode would be changed along the fiber and six possible situations of operation cases are observed. In addition, the proposed calculation can predict the fiber lengths that are completely wetted, partially wetted and are completely dry. In order to verify the proposed calculation, the experiments of CO2 absorption from the gas mixture (CO2-N2) by polyvinylidenefluoride (PVDF) hollow fiber membrane contactor using water and monoethanolamine (MEA) as the absorbents were performed at various inlet liquid pressures (PL0) and liquid velocities. The results obtained from the experiments were reported in term of overall mass transfer coefficient and were validated with those obtained from the proposed calculations. It reveals that calculation based on log-normal distribution shows a better fit with the experiments compared to that based on normal distribution at all operating conditions indicating that the membrane pore structure can be described better using log-normal distribution function. In addition, the calculated average wetting ratio based on log-normal distribution function greed well with that obtained from the numerical model proposed in the literature. © 2012 Elsevier B.V.

Tangwarodomnukun V.,Bangkok Thonburi University
International Journal of Advanced Manufacturing Technology | Year: 2016

Underwater laser machining process is a promising method to cut materials with less thermal damage. A variation of underwater technique is overflow-assisted laser ablation. This process can introduce a higher thermal convection and more uniform water layer than the typical underwater method. Such characteristics can encourage the damage-free fabrication and also stabilize the laser ablation in water. In this study, cut profile and temperature distribution of workpiece induced by the overflow technique were investigated. Titanium alloy (Ti-6Al-4V) used as a work sample was grooved by a nanosecond pulse laser under different overflow conditions. The effects of laser power, laser repetition rate, and water flow velocity were experimentally and numerically examined. A clean and smooth cut surface can be fabricated when the overflow technique was used. Microcracks and porosities found on the laser-ablated area were also addressed in this study. The temperature field of titanium alloy under the different ablation conditions was simulated by using the finite difference computation. The transient heat conduction model was implemented together with the enthalpy method and temperature-dependent material properties. By using the developed model, the groove depths obtained from the experiment and simulation were in a good agreement. © 2016 Springer-Verlag London

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