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Chachoengsao, Thailand

Khancome C.,Rajanagarindra Rajabhat University | Boonjing V.,King Monkuts Institute of Technology at Ladkrabang | Chanvarasuth P.,Thammasat University
Proceedings of the 2013 10th International Conference on Information Technology: New Generations, ITNG 2013 | Year: 2013

Multiple string pattern matching is one of many approaches to simultaneously search occurrences of a large number of patterns in a given text. In this paper, a new solution to this problem is presented by using two-hashing tables to minimize attempting times. This solution, called Two-Hashing Table Multiple String Patterns Matching Algorithm (Two-HT-MSPMA), is suitable for very long length of minimum pattern length. Its time complexity is more efficient than classic algorithms. Empirical results showed that its attempting times were less than of traditional algorithms. © 2013 IEEE. Source


Jettanasen C.,King Mongkuts University of Technology Thonburi | Thongsuk S.,Rajanagarindra Rajabhat University
2013 International Conference on Electrical Machines and Systems, ICEMS 2013 | Year: 2013

This paper focuses on attenuation of high-frequency (HF) electromagnetic noise commonly caused by high-frequency switching devices. A full bridge single-phase SPWM inverter switched by IGBT is employed to drive an ac motor, which is usually widely used in many domestic and industrial applications. More the switching frequency is high more electromagnetic interference (EMI) is considerably generated. That is why an EMI reduction method is necessary to be applied in the system. The proposed method herein is passive low-pass EMI filtering that can reduce noise in machine drive in order to prevent device damage and improve the efficiency of overall motor drive system. © 2013 IEEE. Source


Pukkasenung P.,Rajanagarindra Rajabhat University | Pukkasenung P.,Mahanakorn University of Technology | Chokngamwong R.,Mahanakorn University of Technology
Lecture Notes in Electrical Engineering | Year: 2016

Mobile phones are getting smarter and people have been using them for many different proposes. Recently, more and more people have begun using their mobile phones as a method of payment for online shopping and banking. Mobile payments have become easier than ever. Present security issues of mobile payments, however, still require improvement. This paper aims to summarize the idea of mobile payments and analyze the research of existing secure mobile payment protocols by using MPPS (Mobile Payment Protocol Security) framework. As a result, this paper will give researchers tools to standardize current protocol and share new developments. © Springer Science+Business Media Singapore 2016. Source


Lin A.Y.,University of Sheffield | Parinyavuttichai N.,Rajanagarindra Rajabhat University
Australasian Journal of Information Systems | Year: 2015

While the number of substantive investments in IS projects continues to grow, the number of failing projects also continues to increase at an alarming rate. Both the academic and industry literature suggests that inadequate attention to risk and its management continues to be a key factor in project failure. The typical approach taken is to identify and map potential risks, to act as a planning and diagnostic tool, and to prepare a contingency plan has been a factor- based approach. While it remains a valuable tool for mapping anticipated risks the factor- based approach is less effective when viewing project risks as emergent phenomena that un- fold during the course of the project, and require ongoing attention and risk management. In- formed by a case study of a failing university IS development project, this paper focuses on the phenomenon of risk escalation. The case findings suggest that rather than being defined ahead of the project, some project risks may emerge during the project as a consequence of escalation factors that were both antecedent to and a consequence of actual risk management decisions. The article concludes with suggestions as to how project managers can better man-age the emergent rather than static nature of risk phenomena. © 2015 Lin & Parinyavuttichai. Source


Wilder-Smith A.,Umea University | Wilder-Smith A.,University of Heidelberg | Byass P.,Umea University | Olanratmanee P.,Mahidol University | And 10 more authors.
Trials | Year: 2012

Background: There is an urgent need to protect children against dengue since this age group is particularly sensitive to the disease. Since dengue vectors are active mainly during the day, a potential target for control should be schools where children spend a considerable amount of their day. School uniforms are the cultural norm in most developing countries, worn throughout the day. We hypothesise that insecticide-treated school uniforms will reduce the incidence of dengue infection in school-aged children. Our objective is to determine the impact of impregnated school uniforms on dengue incidence.Methods: A randomised controlled trial will be conducted in eastern Thailand in a group of schools with approximately 2,000 students aged 7-18 years. Pre-fabricated school uniforms will be commercially treated to ensure consistent, high-quality insecticide impregnation with permethrin. A double-blind, randomised, crossover trial at the school level will cover two dengue transmission seasons.Discussion: Practical issues and plans concerning intervention implementation, evaluation, analysing and interpreting the data, and possible policy implications arising from the trial are discussed.Trial registration: clinicaltrial.gov. Registration number: NCT01563640. © 2012 Wilder-Smith et al.; licensee BioMed Central Ltd. Source

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