Now showing items 141-160 of 438

    • The temperature heat for burning to eliminate the master resin plaster casting jewelry 

      Yimchang, Jakkrit; จักรกฤษณ์ ยิ้มแฉ่ง (2020-01-31)
      The results of the study on the optimum temperature for baking soda extinguishers were investigated. B9R-3-EMERALD Using brass material in experiments. It was found that the temperature of 750˚C was good for 48% of the ...
    • A study and develop of welding pieces to sterling silver jewelry with the electric arc system. 

      Yimchang, Jakkrit; จักรกฤษณ์ ยิ้มแฉ่ง; Chumpanya, Presert; ประเสริฐ ชุมปัญญา (2020-01-31)
      Case Study Development of Welding Machine for Sterling Silver Jewelry Parts With 500-amp electrical arc system for welding, closing, porous, jewelry after casting. The problem can be solved by welding, closing, porous or ...
    • A study an optimum casting condition for manufacturing jewelry setting of Composition Pink silver 54% 

      Chumpanya, Presert; ประเสริฐ ชุมปัญญ; Yimchang, Jakkrit; จักรกฤษณ์ ยิ้มแฉ่ง (2020-01-31)
      The results of the experiments were found that the temperature of the castings was higher than that of the silver alloys. The workpiece temperature is 500C, the workpiece is good 26%. The workpiece is 74%. The temperature ...
    • SAR image segmentation via improving watershed algorithm with histogram enhancement 

      Phanthuna, Nattapong; ณัฐพงศ์ พันธุนะ; Cheevasuvit, Fusak; ฟูศักดิ์ ชีวสุวิทย์ (2020-01-31)
      Since the details in quasi-homogeneous region will be degraded from a conventional global image enhancement methods such as histogram equalization. This degradation causes from the saturation of the gray levels in equalization ...
    • Potential of hydrogen ion real-time monitoring 

      Phanthuna, Nattapong; ณัฐพงศ์ พันธุนะ; Thongkeaw, Somkieat; สมเกียรติ ทองแก้ว (2020-01-31)
      Nowadays, the measurement technologies are continually growth in advanced. These can be seen in the developed and developing countries that research and develop the products, which support the consumer behavior and/or ...
    • Air conditioner simulation design and effective estimation 

      Thongkeaw, Somkieat; สมเกียรติ ทองแก้ว; Phanthuna, Nattapong; ณัฐพงศ์ พันธุนะ (2020-01-31)
      This project is intended as a teaching medium, air conditioning system, and simulation of air conditioning system problems. Some of them have been modified to suit their teaching needs. Arduino microcontrollers are used ...
    • Wind turbine simulation for connected single phase 

      Wannakran, Poonsri; พูนศรี วรรณการ (2020-01-31)
      This research project presents about wind turbine simulation for connected single phase grid system using hysteresis current control technique to generate PWM signals for controlling a single-phase voltage source inverter. ...
    • Construction safety measure for working at height 

      Monkaew, Sunun; สุนันท์ มนต์แก้ว; Nawalerspunya, Thawatchai; ธวัชชัย นวเลิศปัญญา (2020-01-31)
      The purpose of this research is to study the construction safety measure for working at height. The safety measure for working at height in this research is developed by referring to the Ministerial Regulations prescribing ...
    • Choosing appropriate seasonal functions in bayesian time series models for analyzing prices and yields of natural rubber in Thailand 

      Tongkhow, Pitsanu; พิษณุ ทองขาว; Thangchitpianpol, Pirom; ภิรมย์ ตั้งจิตเพียรผล (2020-01-31)
      The objectives of this research were to create a model for time sereries data, prices and yields of natural rubber, to be more accurate prediction and to compare the proposed model with the classical time series models ...
    • Drought prediction in Thailand using spatial analysis with bayesian generalized linear mixed models 

      Tongkhow, Pitsanu; พิษณุ ทองขาว; Jumroonrut, Suttipong; สุทธิพงษ์ จารูญรัตน์; Sirima, Pornpit; พรพิศ ศิริมา (2020-01-31)
      The objectives of this research were to propose a spatial analysis using Bayesian generalized linear mixed model for predicting drought in Thailand. The spatial effect was assumed to be a conditional autoregressive model ...
    • Proper model selection for predicting statio-temporal time series data of rice and rubber 

      Jiraprasertwong, Pichet; พิเชฐ จิรประเสริฐวงศ์; Lekdee, Krisada; กฤษฎา เหล็กดี (2020-01-31)
      The objectives of this research were to propose a model with some functions including CAR spatial effects and to select a proper model for predicting rince and rubber yields in southern provices of Thailand. A ...
    • Voltage drop cable riser pole analysis method with wire arrangement model of the PEA 

      Prakobkit, Surasit; สุรสิทธิ์ ประกอบกิจ (2020-01-31)
      System of The Provincial Electricity Authority using the grounding wire connected between the cable end and Surge arrester format it is connect the cable from the end of the cable set to the end of the Surge arrester, and ...
    • Energy saving strategies in refrigeration systems by defrost management 

      Rugthaicharoencheep, Nattachote; นัฐโชติ รักไทยเจริญชีพ; Bunthianthong, Manat; มนัส บุญเทียรทอง (2020-01-31)
      Defrosting at evaporator panel is one of working cycles in freezer. Power consumption in defrosting does not meet the objective of using freezer, therefore, the approach to decrease power consumption in defrosting is one ...
    • A Study of heat transfer behavior in brake system to optimize heat conductivity of brake pad 

      Puangcharoenchai, Phupoom; ภูภูมิ พ่วงเจริญชัย; Lakkam, Supachai; ศุภชัย หลักคา (2020-01-28)
      Brake pad is a one of products that plays a role in the automotive parts industry and directly affects safety. Therefore, there are many designs of brake pads for product development. This research aims to study the thermal ...
    • Economic analysis for placement of power distribution sub-stations 

      Rugthaicharoencheep, Nattachote; นัฐโชติ รักไทยเจริญชีพ; Charangsut, Aroon; อรุณ ชลังสุทธิ์ (2020-01-24)
      This research study is the application of Geographic Information System (GIS) for distribution substation. The main purpose is to satisfy user by planning to support the increase of load at present and in the future. ...
    • Improve power system stability with FACT devices 

      Boonthienthong, Manat; มนัส บุญเทียรทอง; Rugthaicharoencheep, Nattachote; นัฐโชติ รักไทยเจริญชีพ (2020-01-24)
      At present, the electrical power system has growth and more complicate. Because of the development of the economics and society. An increasing the demand of power transmission line system would be resulted in the stability ...
    • A study of influential variables on fuel injection performance using biodiesel and pyrolysis fuels 

      Tinprabath, Padipan; ปฎิภาณ ถิ่นพระบาท; Peanprasit, Somjai; สมใจ เพียรประสิทธิ์ (2020-01-24)
      The purpose of this research is to study on variables affecting fuel injection performance of biodiesel fuel injection and pyrolysis fuel. To test for variables affecting the fuel injection performance of biodiesel fuel ...
    • A Design and development of powertrain module for using with the motorcycle crash test 

      Boonyalai, Pichest; พิเชษฐ์ บุญญาลัย; Mongkonlerdmanee, Songwut; ทรงวุฒิ มงคลเลิศมณี; Pokterng, Singkaew; สิงห์แก้ว ป๊อกเทิ่ง; Kirdniyom, Saiprasit; สายประสิทธิ์ เกิดนิยม (2020-01-24)
      A design and development of powertrain module crash test using with the motorcycle crash test is aim to create a special tool for automotive assessment and safety engineering based on the realistic test. In order to main ...
    • A Design and development of motorcycle anthropometric test dummy 

      Pokterng, Singkaew; สิงห์แก้ว ป๊อกเทิ่ง; Mongkonlerdmanee, Songwut; ทรงวุฒ มงคลเลิศมณี; Kirdniyom, Saiprasit; สายประสิทธิ์ เกิดนิยม (2020-01-24)
      The purpose of this research is to design and develop dummy (anthropometric test dummy) for motorcycle frontal collision test. The conceptual design of dummy is male, aging between 25-55 years old, 6 pieces of rib and ...
    • Impact strenght of pozzolans materials concrete by ternary blends system 

      Sangsuwan, Chakkarphan; จักรพันธ์ แสงสุวรรณ; Yoddamrong, Prachya; ปรัชญา ยอดดำรงค์ (2020-01-24)
      This research study to the effect of pozzolanic materials by replacement cement by fly ash and Meta kaolin, which affect the mechanical and physical properties of concrete. According to Standard test such as Compressive ...