Browsing งานวิจัย (Research) by Title
Now showing items 93-112 of 131
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Seed humidity meter
(Rajamangala University Of Technology Rattanakosin, 2014)This research aims to study and design the seed humidity meter for the farmers who produce a type of seed; for examples, green bean and sorghum seeds, especially paddy rice which is seen as the primary product in Thailand. ... -
The Simulation of Friction-Induced Vibration Using Finite Element Method
(Rajamangala University of Technology Rattanakosin, 2014-03)เมื่ออุปกรณ์สองสิ่งมาสัมผัสกันและเคลื่อนที่โดยมีความเร็วสัมพัทธ์กันจะทำให้เกิดการสั่นเกิดขึ้นเนื่องจากอุปกรณ์มีการขัดสีกันเกิดขึ้นโดยมีค่าแรงเสียดทานขึ้นอยู่กับความเร็วสัมพัทธ์ของอุปกรณ์ทั้งสอง ปัญหาที่เกิดขึ้นในสมการอนุ ... -
The Simulation of Friction-Induced Vibration Using Finite Element Method
(Rajamangala University Of Technology Rattanakosin, 2014)When two mechanical parts are in sliding contacts, relative velocity of two parts can induce vibration. In rubbing surface, frictional force depend on relative velocity of two parts. The equation of motion in differential ... -
Simulation of Integrator-Based Current-Mode Universal Filter with Independent Tunable Pole-Q
(Rajamangala University Of Technology Rattanakosin, 2013)This paper presents the simulation of integrator-based current-mode universal filter with independent tunable pole-Q, synthesized from band-reject filter function. The employing only multi-output OTAs, including with ... -
Simulation of Magnetic Field Effect Caused Fault in Distribution Transformer by using Finite Element Method
(Rajamangala University Of Technology Rattanakosin, 2013)This research presents the research of study and calculate the magnetic field of distribution transformer in the condition of normal load and caused fault by using finite element method that is only developed. The magnetic ... -
Soil moisture sensor wireless for para rubber tree soil experiments
(Rajamangala University Of Technology Rattanakosin, 2014)Modern technology used in agriculture. To facilitate matters. Soil moisture sensor but these devices are relatively expensive. When compared to the benefits that will be considered are not required for investment to be ... -
Soil moisture wireless for para rubber tree soil experiments.
(มหาวิทยาลัยเทคโนโลยีราชมงคลรัตนโกสินทร์, 2015)Modern technology used in agriculture. To facilitate matters. Soil moisture sensor but these devices are relatively expensive. When compared to the benefits that will be considered are not required for investment to be ... -
Solar Threshing Machine
(Rajamangala University Of Technology Rattanakosin, 2014-08)This research presents an agricultural innovation system for designed and developed of renewable energy technologies. The innovation system is used to identify opportunities for solar energy and threshing machine in the ... -
Speed Control For The Car Using Electric-motor Driven By Measured The Distance From Ultrasonic Sensor
(Rajamangala University Of Technology Rattanakosin, 2015)This inquiry is presented the speed control of the automobile using electric-motor driven while device detected the barrier from the front side of the machine. The detectors consist of the two sensor devices, the ultrasonic ... -
Strength and Durability of Mortar Containing Bagasse Ash and Fly Ash
(มหาวิทยาลัยเทคโนโลยีราชมงคลรัตนโกสินทร์, 2008-03)This research was to study the strength and durability of mortar containing bagasse ash and fly ash. Strength such as compressive and flexural strength was investigated. Durability tested was drying shrinkage, sulfate ... -
Strength and Microstructure of Cement Blended Bagasse Ash and Fly Ash
(มหาวิทยาลัยเทคโนโลยีราชมงคลรัตนโกสินทร์, 2007-07)The objective of this research was to study the strengths and microstructure of cement blended bagasse ash and fly ash in order to use for data base to develop the bagasse ash as a construction materials. The ratio of ... -
Study and Design of X- Band Triple Loop Frequency Synthesizer for Satellite Communication System
(Rajamangala University Of Technology Rattanakosin, 2018)This research is to study and design of X- band triple loop frequency synthesizer for the satellite communication system. The internal frequency synthesizer consists of three phase-locked loop circuits. The proposed ... -
Study and Development Pick and Place Robot Arm for Industrial in Three Axis Type with Controlling by PLC to Use in Automatic Production for Prepare to Joint in Industrial 4.0
(Rajamangala University Of Technology Rattanakosin, 2018)This research aims to study and develop a 3-axis type mechanical gripper industrial arm that controls the feedback position of an analog signal. That controls the work with PLC that is used in automated production By ... -
Study Behavior of Reinforced Concrete Building Structure considering the Stiffness of Brick Wall under Earthquake
(Rajamangala University Of Technology Rattanakosin, 2013)This research aimed to investigation of responding reinforced concrete structure under earthquake which brick wall considered to cooperate with main structures. Because structural analysis doesn’t generally considers ... -
A Study for the improve drainage of the Porous concrete flooring, stone wash
(มหาวิทยาลัยเทคโนโลยีราชมงคลรัตนโกสินทร์, 2015-09)The purpose of this research was to study the engineering properties of concrete flooring, stone wash porosity variations in the nature and magnitude of the flexural strength, water absorption coefficient of the drainage ... -
The Study Method of Electric Field Stress Control
(Rajamangala University Of Technology Rattanakosin, 2013)This research present about the study methods to reduce the electric field stress in the cylindrical shape tested object which is mostly used in high voltage. These methods are to put corona shield in each position on the ... -
Study of Bottom Ash mixed Cement and Para-Rubber Latex for as Alternative Highway Materials
(Rajamangala University Of Technology Rattanakosin, 2019)This research investigates the appropriated mixture of bottom ash mixed with Portland cement and Para-Rubber latex as the alternative highway materials. Bottom ash used in this research was divided into 3 categories as ... -
A Study of Electrical Energy Saving for Green Building
(Rajamangala University Of Technology Rattanakosin, 2012)This research to study "A Study of Electrical Energy Saving for Green Building" is intended to study that, Should take measures to promote and supervise the construction of buildings according to green building energy ... -
Study of failure behavior of rock mass around circular tunnel under excavation process by element free-Garlerkin method
(Rajamangala University Of Technology Rattanakosin, 2015-06)This study aims to evaluate the stability of rock mass under high internal pressure due to gas storage. The reasonable failure planes by element free Galerkin method (EFG) considered from influenced factors are used to ... -
The study of heavy metal ions adsorption on modified electrospun polyacrylonitrile nanofiber mats
(มหาวิทยาลัยเทคโนโลยีราชมงคลรัตนโกสินทร์, 2015-10)The electronics industries produced a large quantity of wastewater containing both of Cu(II) and Pb(II) ions that may result in significant problems to an environment and human body. The main objective of this study was ...