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Preface - kmutt

Preface - kmutt

KMUTT Annual Research

KMUTT Annual Research Abstracts 2005 should depress the transformation resulted in a lower transformation temperatures. IC-069 A STUDY ON DEEP DRAWING OF SQUARE BOXES BY FINITE ELEMENT METHOD Pongpan Kaewtatip, Varunee Premanond, Ratchanee Paisarn, Chansak Phattrapornnan The 8 th Asian Symposium on Visualization (8ASV), May 23-27, 2005, The Empress Hotel, Chiangmai, Thailand, pp. 179-181 This study aimed to simulate a deep drawing operation of a square box by commercial finite element code "OPTRIS". The original blank sheet is low carbon steel (JIS: SPCEN) with 0.78 mm thick. The dimension of finished box is 100 mm in width, 100 mm in length and 53 mm in depth. First, in order to validate the results obtained from simulation, they were compared to those of prior experimental results. The results of drawing force, box thickness and formability of finish product were compared. Good agreement was found between those results to ensure the validation of the simulations. Subsequently, the study was extended onto reveal the effect of die radius on the drawing force and quality of part produced. It was found that the parts can be successfully produced without wrinkle or tearing from tool with die radius in a range of 5 to 21 mm. or 6 to 26 times of sheet thickness. Furthermore, the parts with acceptable quality, i.e., having quite uniform wall thickness, can be obtained from tool with die radius in a range of 12 to 16 mm. or 15 to 20 time of sheet thickness. IC-070 EFFECTS OF SWAGING PROCESS PARAMETERS ON SPECIMEN DEFORMATION Thoatsanope Kamnerdtong, Surachate Chutima, Kittipong Ekintumas The 8 th Asian Symposium on Visualization (8ASV), May 23-27, 2005, The Empress Hotel, Chiangmai, Thailand, pp. 184-185 Ball swaging is one of the swaging processes used for assembling a thin sheet component onto other parts by passing balls through aligned components. The stress distribution and elastic-plastic deformation of the components in the process affect the assembly qualities i.e. tightening torque and 101 final product shape. Those process parameters governing stress and deformation are ball size, ball velocity, ball direction and coefficient of friction between the ball and the component. This work is aimed to study the effects of mentioned parameters on the assembly qualities using nonlinear finite element analysis. It was found that though larger ball size provided better tightening torque, the product is considerable deformed. Increased ball velocity would result in decreased tightening torque and the product deformed substantially. Reversing the ball direction was given higher tightening torque resistance and lowered the product deformation. And finally, increased the coefficient of friction would result in higher tightening torque and higher deformation. In addition, the advantage of the technique employed is the visualization that enable user to modify component dimensions and gain benefits from improved assembly qualities. IC-071 DRYING KINETICS OF OKARA IN A JET SPOUTED BED OF SORBENT PARTICLES Sarat Wachiraphansakul, Sakamon Devahastin The 4 th Asia Pacific Drying Conference 2005, December 13-15, 2005, Science City, Kolkata, India, pp. 399-413 Okara or soy residue is a by-product of soymilk and tofu production process. Okara has high protein content and can be used as an ingredient in many food products or as an animal feed. However, okara deteriorates rapidly; hence raw okara must be dried as early as possible under appropriate conditions. Drying could also help eliminating undesirable antinutritional factors in okara as well. The present study investigated the feasibility of drying okara using a combined convection-sorption drying, i.e., the use of a jet spouted bed of sorbent particles. The effects of various parameters viz. drying air temperature and velocity, mass ratio of sorbent particles to okara, and initial bed height of okara on the drying kinetics as well as the specific energy consumption of the drying process were investigated in both lowtemperature and high-temperature drying ranges. IC-072 DRYING KINETICS AND QUALITY OF CARROT DRIED BY FAR-INFRARED RADIATION UNDER VACUUM CONDITION Chatchai Nimmol, Sakamon Devahastin, International Conference

102 Thanit Swasdisevi, Somchart Soponronnarit International Agricultural Engineering Conference, December 6-9, 2005, Bangkok, Thailand. Drying of carrot cube by far-infrared radiation (FIR) under vacuum was carried out to investigate the effects of various parameters on the drying kinetics and quality of the dried product. Drying experiments were conducted at the controlled surface temperatures of carrot of 60, 70, and 80°C and absolute pressures of 7 and 10 kPa. The quality of the dried carrot was evaluated in terms of shrinkage, rehydration ability and color. The results showed that the time required for drying decreased with an increase of the controlled surface temperature and a decrease of the drying chamber pressure. A decrease in the controlled surface temperature and an increase in the drying pressure led to an increase in shrinkage and rehydration ability of the dried carrot. However, the influences of the controlled surface temperature and the drying pressure on the redness and lightness of the product were not significant (p>0.05). IC-073 EFFECTS OF DIETHYLENE GLYCOL ON TIO 2 THIN FILM PROPERTIES PREPARED BY SOL-GEL PROCESS Puangrat Kajitvichyanukul, Parichat Amornchat International Symposium on Nanotechnology in Environmental Protection and Pollution (ISNEPP 2005), January, 12-14, 2005, Miracle Grand Convention Hotel, Bangkok, Thailand A technological approach for the sol-gel processing of stabilized thin film titanium dioxide on the stainless steel has been extensively investigated in this paper. Diethylene glycol was used as a drying control additive agent. The transformation of a titanium dioxide thin film was studied by X-ray diffraction. The surface morphology was observed by scanning electron microscope (SEM). As results, this substance helped in stabilizing the solution and improving the adhesive property of the film. Without diethylene glycol, the thin film peeled off. Substantially improvement of film was seen with the high amount of diethylene glycol applied. This effect was confirmed by adhesive test and the morphology of stainless steel surface. In addition, adding diethylene glycol in the sol-gel solution exerted less effect on KMUTT Annual Research Abstracts 2005 transformation of anatase to rutile phase in titanium dioxide structure. Thus, the nanocrystalline titania anatase film can be controlled and the high photoacitivity of the film is secure. IC-074 PREPARATION AND PROPERTIES STUDY OF TIO 2 THIN FILM FOR PHOTOREDUCTION OF CHROMIUM(VI) IN PHOTOCATALYSIS PROCESS Puangrat Kajitvichyanukul, Jirapat Ananpattarachai, Siriwan Pongpom International Symposium on Nanotechnology in Environmental Protection and Pollution (ISNEPP 2005), January, 12-14, 2005, Miracle Grand Convention Hotel, Bangkok, Thailand In this paper, a sol-gel technique with dip coating method is used to prepare photocatalytic TiO 2 thin films immobilized on glass plates. The structure and morphology of thin films are characterized with X-ray diffraction (XRD) and scanning electron microscope (SEM). The structural characterization of this film shows that the titanium oxide anatase phase is predominant at 400 o C-700 o C. The appearance of the rutile phase depends mainly on coating cycle. For example, the rutile phase appeared at 600 o C with 5 coating cycles. The obtainable thin films from each preparation condition were tested for photoreduction of chromium. Our results show that the photoreduction of chromium(VI) is greatly enhanced. Comparatively, the photoactivity of the prepared TiO 2 thin films shows similar activity with TiO 2 powder, Degussa P-25. Findings from this research are beneficial for an application of TiO 2 thin film in environmental aspects. IC-075 PROGRAMMABLE ENERGY RECOVERY ELECTRONIC LOAD FOR BURN-IN TEST Wanida Boonyaroonate, Itsda Boonyaroonate The 2005 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference (ECTI-CON 2005), May 12-13, 2005, Asia Pattaya Beach Hotel, Pattaya, Cholburi, Thailand, pp. 494-497 This paper presents the programmable energy recovery electronic load for replace the International Conference

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    CONTENTS Page Preface International

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  • Page 75 and 76: 68 เปลือกที่ม
  • Page 77 and 78: 70 ของการดูดซ
  • Page 79 and 80: 72 การสกัดดวย
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    National Conferences

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    210 จอมเทียนปา

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    212 การสกัดสาร

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    214 ไดแก อุณหภู

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    216 โดยกลไกของ

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    218 เคลือบเมื่

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    220 สําเริง จัก

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    222 ลดเวลาตลอด

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    224 อุณหภูมิสู

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    226 NC-043 การวิเคร

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    228 เกิดพฤติกร

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    230 เดียว เพื่อ

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    232 มากนอยเพีย

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    234 หลักที่พบใ

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    236 NC-073 การออกแบ

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    238 บทความนี้น

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    240 นําเอาเวคเ

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    242 งานวิจัยนี

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    244 การอบแหงลด

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    246 แยกเฟสต่ํา

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    248 กลบ โดยเปรี

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    250 นํามาใช คือ

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    252 วิเคราะหหา

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    254 NC-123 การวิเคร

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    256 NC-129 เครื่องผ

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    258 สามารถขยาย

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    260 ครั้งที่ 43, 1-

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    262 calculated with the use of the

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    264 Version 1.3.1 และ Softwar

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    266 ขนไกได จากก

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    268 โครงสรางขอ

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    270 การปลูกพืช

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    272 ระดับพึงพอ

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    274 ของแกสโซฮอ

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    276 1) สภาพทั่วไ

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    278 อนุปริญญา แ

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    280 อาชีวศึกษา

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    282 กระทบตอคุณ

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    284 ตั้งกลไกแข

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    286 นุชจรินทร เ

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    288 โดยรวมผูบร

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    290 แนนกระแสไฟ

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    292 NC-222 ผลงานตีพ

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    294 NC-227 เตาเผาไห

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    296 จําเพาะรวม

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    298 NC-238 จลนพลศาส

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    300 ทนงเกียรติ

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    302 ดีเซลนั้นม

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    304 NC-254 การใชเทค

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    306 อาคารศูนยก

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    308 กระบวนการร

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    310 บรรยากาศขอ

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    312 metal ions on 2-AP biosyntheis

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    314 total clones while the ethanol

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    316 การประชุมท

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    318 BioThailand (The 16 th Annual M

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    320 สูงที่สุดพ

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    322 นัยสําคัญท

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    324 ความเขมขนร

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    326 ปลูกแบบพรา

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    328 นี้ทําใหทร

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    330 ดุลชาติ มาน

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    332 ไมโครเมตร ส

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    334 In this study, we collected seq

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    336 กนกรัตน นาค

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    338 การพัฒนาสื

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    340 one of the causes of difficulty

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    342 ทวีรัตน วิจ

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    344 program, Cytoscape. This model

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    346 production demand. Nevertheless

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    348 อุลตราไวโอ

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    350 นี้อยูในชว

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    352 เพื่อนําสว

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    354 trichloroacetic acid (TCA) ม

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    356 ทรัพยากรที

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    358 ในประเทศสห

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    360 8-9 ธันวาคม 2548,

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    362 ซึ่งเกิดขอ

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    364 NC-391 การวิเคร

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    366 การประชุมว

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    368 2547) พบวามหาว

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    370 กนกพร ลีลาเ

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    Authors Index

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    376 จงจิตร หิรั

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    378 ธ ธนธร ทองส

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    380 พยุงศักดิ์

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    382 วรรณพ วิเศษ

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    384 สุดารัตน จิ

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    386 อุลาวัณย กุ

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    388 138, 141, 142 Jarunya Narangaja

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    390 Panida Kongsawadworakul 191 Pan

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    392 Sorakrich Maneewan 124, 136 Sor

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    394 KMUTT Annual Research Abstracts

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