Office of the President (สำนักงานอธิการบดี): Recent submissions

Now showing items 61-80 of 127

    • Improvement of Efficiency in Biodegradable Packaging Process 

      Sritarathorn, K.; Mounjun, P.; Warinsiriruk, E. (2010-11-22)
      This industrial research was studied an improvement of efficiency in natural fiber production plant. The objective was improvement process by using IE techniques which this method was once green technology for industrial ...

    • The Study on Microstructure and Mechanical Properties of Silver alloy 58.4% for Jewelry Manufacturing 

      Salanay, Thanatip; Torsakul, Sirichai (2010-11-22)
      The research involved the characterization of the properties of silver alloys -bearing copper and zinc. The alloys composed of 58.4% silver 20.85-41.76% copper and 0-20.83% zinc, respectively. When comparing the characteristics ...

    • Competency Assessment for Administrators Under Jurisdiction the Office of Vocational Education Commission 

      Sirimai, Kajohnsak; Shinatrakool, Ravewan; Boonyasopon, Teravuti (2010-11-22)
      This research aimed to assess the competency for vocational education administrators under Jurisdiction the Office of Vocational Education Commission, Ministry of Education by using the Needs Assessment Process to assess ...

    • Green Power Zone 

      Chankhamrian, Wuthikrai; Bhumkittipich, Krischonme (2010-11-22)
      This paper presents the concept, prospect and operation of Green Power Zone (GPZ). The GPZ is defined as part of power grid which provides electrical energy with varying quality depends on customer requirement. Different ...

    • Influence of Plasma Treatment on the Flexural Properties of Geopolymer Composites 

      Xiem, N. T.; Kroisová, D.; Louda, P.; Bortnovsky, O. (2010-11-22)
      In recently years, geopolymer or polysialate composites have been developed and applied for a variety of fields. They are known as inorganic matrices composites, which are fabricated and cured at room temperature or ...

    • Fluctuation Voltage Control of Wind Turbines via STATCOM 

      Srisongkram, Warunee; Bhumkittipich, Krischonme; Unahalekhaka, Pramuk (2010-11-22)
      This paper presents distributed STATCOM for controlling voltage in distribution line with wind turbines generations at 48 volts. The connection of wind turbine to distribution systems may affect the voltage quality offered ...

    • Development of Smart Monitoring System for Wind Energy System 

      Srisongkram, Warunee; Plangklang, Boonyang; Boonme, Chaiyant (2010-11-22)
      The paper presents a development of monitoring system for a prototype wind turbine system. The proposed monitoring system is developed under Labview environment. The system can connect to the wind turbine online via internet. ...

    • Influence of Electrode Force Affecting the Complete of the Resistance Spot Welding 

      Pearsura, Prachya (2010-11-22)
      This research was to influence of electrode force affecting the complete of the resistance spot welding. The specimen was mild steel sheet metal has 1 mm. thickness. Then applied the force to the specimen are 1.0, 2.0, ...

    • Development of Green Energy Block Made from Paper Mill Waste Sludge 

      Jitjumroonchokchai, Penja (2010-11-22)
      Sludge from paper mill wastewater treatment plant is the residual composed of fibres, fibre particles and miscellaneous debris. Sludge with high fibre contents were collected from BP paper mill industry. They were retreated ...

    • Life Cycle Assessment for the Activated Carbon Production by Coconut Shells and Palm-Oil Shells 

      Noijuntira, I-sika; Kittisupakorn, Paisan (2010-11-22)
      Activated carbon, also called activated charcoal or activated coal is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical ...

    • Optimization of the Aluminum Riveting Process Using an Experimental Design Technique 

      Muankhoksoong, Somchai; Chewasuthisil, Santichai (2010-11-22)
      The purpose of this research is to determine the optimal factors existing in the aluminum riveting process. First, a 25 full-factorial design was used to screen five factors and two levels by selecting a lapping-joint ...

    • Forecast a Shortage of Power in Thailand 

      Phupha, Vallop; Rungreunganun, Vichai; Pimapunsri, Kusol (2010-11-22)
      Thailand may experiencing The Dark World within 12 years in the future as the UK has revealed that could be found Crisis of Dark World after power not enough for The entire country in this Winter.[1] Thailand has to plan ...

    • A Study of Coconut Oil Pressing Machine 

      Supengcum, Rachadasak; Phupha, Vallop (2010-11-19)
      The technology development has been continuing to solve the cost problem, aiming to reduce work time, to streamline the existing machines to be more efficient and productive, including designing the devices to replace human ...

    • A Solid-State Device for Fault Protection in Low Voltage Wind Turbine System 

      Phanthuna, Nattapong; Pusorn, Wanida; Srisongkram, Warunee (2010-11-19)
      This paper presents how to design and build electrical protection equipment to apply for a wind turbine generator system which is modeled on low voltage 3 phase 380 volts system. This electrical equipment acts as a switch ...

    • Speed Control System Design in Bicycle Robot by Low Power Method 

      Wiriya, Sunthorn; Distaklu, Nikom; Howimanporn, Suppachai (2010-11-19)
      This paper presents compare results performance between two conventional controllers for bicycle robot. The bicycle speed control system was a highly nonlinear model, multivariable and absolutely unstable. It has used for ...

    • Comparison of continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) in Omni wheel Robot Power Supply 

      Manasoontorn, Reurngsak; Howimanporn, Suppachai (2010-11-19)
      Nowadays many robot approaches to robust control problems are applicable only to linear systems for nonlinear systems; we may not be able to easily compute the solution to the optimal control problem as analytical solutions ...

    • Design and Construction High Voltage,High Frequency Transformer Rated 500 kV 250 kHz 

      Nedphograw, Supawud; Jaturacherdchaiskul, Jaturonk; Viriyakam, Adisak (2010-11-19)
      This project design and constructions high voltage, high frequency transformer or tesla transformer. The tesla transformer is design at 500 kV rating voltage and 250 kHz resonant frequency. By coupling air axle and have ...

    • The Electrical Voltage Setting 0-220 Volts by Software 

      Nedphograw, Supawud; Thongkeaw, Somkeait; Noiraiphom, Srisak (2010-11-19)
      This project is the study about making the electrical voltage setting 0 – 220 Volts by software system with electrical voltage control of the auto transformer while it has 100 kv 10 kVA Especially the electrical voltage ...

    • Design and Construction of High Voltage Diode 100 kV 

      Nedphograw, Supawud; Lantharthong, Thong; Charlangsud, Aroon (2010-11-19)
      Diode high voltage the equipment assembles. That have necessity and important for a room practices for test experiment, research, and for the instruction. But diode high voltage to bring an element in a room practices ...

    • Main Causes and Prevention of Occupational Slipping Tripping and Falling in Thailand 

      Srisila, Chalermkiet; Bunterngchit, Yuthachai (2010-11-19)
      The purpose of this study was aimed to identify the main causes and prevention of occupational slipping, tripping and falling in Thailand. The results revealed that number of the accidents caused by the occupational slipping, ...