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- PublicationThe Use of Remote Sensing for Estimating the Impact of Climate Change onJapanese Encephalitis Disease Distribution(University of the Thai Chamber of Commerce, 2007)
; ; University of the Thai Chamber of Commerce. School of EngineeringIn Thailand, Japanese encephalitis (JE) occurs primarily in the north and northeastregions and remains a public health problem because the case fatality rate is 10-50%. Thedisease has recently been recognized in new areas and has recurred in previously endemicareas. The environmental interactions are important in the various effects of temperature andrainfall. To tackle with problems on JE, the development of a model that can predict JE case asa function of these environmental factors is needed. Two models have been developed in thisstudy based on time-series analysis. One is in Chiangrai Province that shows high JE cases inThailand and the other is for the whole country, Thailand. The accuracy (R2) of these modelsare 0.970 and 0.783 respectively in 1992-1993 in which model parameters have beendetermined. The models were applied to 1998 data for validation, which showed the accuracy(R2) of 0.727 and 0.621 respectively. Remote sensing data from NOAA AVHRR is introducedto identify rice fields to make it possible to predict JE cases at near real time at the seasonaltime scale in Thailand. The accuracy (R2) of this model is 0.608 in 1998 between the JE casefrom a model and the actual. - PublicationA HCI Keyboard Layout Design for Blind People(University of the Thai Chamber of Commerce, 2007)
; ; University of the Thai Chamber of Commerce. School of EngineeringPresently, computers have become a part of everybodydaily life, including disables such as blind people. Akeyboard is a main input equipment of computers.However, these keyboards are not yet suitable for blindpeople, especially for the Thai alphabet system. Thispaper proposes a new layout design of computer keyboardfor blind people. The research results show that Braillecharacter code is very attractive to be used for designingthe layout. Many mechanisms for arrangement the keysor buttons are investigated and the results shows that totype Thai Braille character code, the keyboard layoutrequires add/drop cells buttons in addition to the normalbuttons representing number 1 to 6 of the Braille charactercode. Moreover, the results suggest that such buttonsmust be in order of 5 3 1 2 4 and 6 rather than 1 2 3 4 5 and6 which has been used in many keyboard currentlyavailable on the market.39 51 - PublicationUniversity Timetabling Using Evolutionary Computation(University of the Thai Chamber of Commerce, 2007)
; ; University of the Thai Chamber of Commerce. School of EngineeringUniversity timetabling problems have been interested by many researchers for more than adecade. However, there is no appropriated solution or computation model available to solve these problemssuccessfully. This is because of many different version of timetabling problems. In this paper, a novalapproach of Genetic Algorithm (GA) for solving educational timetabling problem is proposed, including theconstraints statements, the definition of a hierarchical structure for the fitness function, and the generalizedgenetic operators, which can be applied to matrices representing timetables. The paper focuses on lecturingtimetables only, but not the examinational timetabling. The crossover rate and mutation rate were varied toconduct effective results and they shows that the given appropriate crossover rate of 50% and mutation rateof 50% is the best ratio to solve university timetabling problems.4 18 - PublicationDetection of an Acute Leukemia Using an Active Contour Model(University of the Thai Chamber of Commerce, 2007)
; ; ; ; ; University of the Thai Chamber of Commerce. School of EngineeringThis paper presents a detection of an acute leukemiafrom smeared leukocytes image using ACM (active contourmodel). We calculate a granule area of an auerrod for classifytype of leukemia cell. We segment an auerrod from cell usingcolor segmentation. After that, we find a granule area by ACMof each cell. Finally, we classify a leukemia cell from a ratiobetween granule and auerrod. The proposed technique can belook for size and color of the smeared leukocyte nuclease andcompare with the normal leukocyte nucleus size. Thedifference of size and color can detect for abnormal leukocytes.The result show that the proposed technique can accuratelydetect by 90%.2 5 - PublicationAutomatic Measuring System for HIV Antivirals on Antiviral Neviraphene Sheets(University of the Thai Chamber of Commerce, 2007)
; ; ; ; University of the Thai Chamber of Commerce. School of Engineeringการตรวจหาปริมาณยาต้านไวรัสเอดส์บนแผ่นยาต้านไวรัส เนวิราฟีนจำเป็นต้องใช้แพทย์ผู้เชี่ยวชาญในการอ่าน เพื่อการรักษาอย่างมีประสิทธิภาพจำนวนแพทย์ผู้เชี่ยวชาญมีน้อย และขีดจำกัดของการใช้ตาของมนุษย์ในการคัดแยกสีไม่สามารถอ่านค่าที่แสดงปริมาณยาอย่างละเอียดได้บทความนี้เสนอ ระบบอัตโนมัติสำหรับวัดปริมาณยาต้านไวรัสเอดส์บนแผ่นตรวจยาต้านไวรัสเนวิราฟีน ระบบนี้ติดตั้งกล้องไว้ด้านบนกล่องทึบแสงและให้แสงสว่างภายในกล่อง มีช่องสำหรับสอดแผ่นตรวจยาต้านไวรัสด้านข้าง ทำการกำหนดระดับความเข้มของสีมาตรฐานในการวัดปริมาณยาต้านไวรัสเนวิราฟีน สีบนแถบทดสอบถูกนำมาเปรียบเทียบกับมาตรฐานโดยวัดความเข้มสี ผลการทดลองมีความถูกต้อง สามารถจำแนกระดับปริมาณยาในเลือดมีความละเอียดมากขึ้นทศนิยม 2 ตำแหน่ง ได้ถูกต้อง 95.0 เปอร์เซ็นต์3 12