จำนวน Repository ( 3447 )
Calculation of Thermoelectric Properties of Doped SrTiO3
Thermoelectric properties of cubic perovskite SrTiO3 have been investigated. The energy band structures are calculated using the total energy plane-wave pseudopotential method within the local density approximation (LDA) and generalized gradient approximation (GGA). The calculated energy band structures are then used in combination with Boltzmann transport equation to calculate the thermoelectric parameters of doped SrTiO3 especially seebeck coefficient electrical conductivity and electronic thermal conductivity.
Adaptive Equalization Architecture Using Distributed Arithmetic for Partial Response Channels
This paper proposes a design and implementation of transversal adaptive digital filter using LMS (Least Mean Squares) adaptive algorithm. The filter structure is based on Distributed Arithmetic (DA) which is able to calculate the inner product by shifting and accumulating of partial products and storing in look-up table also the desired adaptive digital filter will be multiplierless filter. In addition the hardware implementation uses VHDL (Very high-speed integrated circuit Hardware Description Language) and synthesis using FLEX10K Altera FPGA (Field Programmable Gate Array) as target technology and uses Leonardo Spectrum and MAX+plusII program for overall development. The results of this design are shown that the speed performance and used area of FPGA. The experimental results are presented to demonstrate the feasibility of the desired adaptive digital filter
Board Led Display Dot Matrix Controled by Microcontroler with Internet System
This research is Design and construction board led dot matrix was create for study about microcontroller. It apply to use in communication & information indoor type by sending messages from computer on internet network systems. This research has implemented LED dot matrix display for display message characters. The research is composed of 4 major parts: the first part is LED dot matrix display with dimension of 16x192 dots. The second part is the control circuit by using a micro-controller ARM 7 which receives the data from computer the third part by using Microsoft Visual Basic. the forth pat program remote desktop. From tests and results we have found that it can display the message characters which move from Internet System successful.
Design and construction tesla transformer 120 kV 120 kHz for Insulator Testing
This research presented the details of design and constructions of tesla transformer for testing insulator. The out put of the tesla transformer has a rate of 120 kV and 120 kHz. Tesla transformer consisted of primary coil and secondary coil which is wound on a PVC insulating chamber and use air insulation in part of coaxial. The Rotary Gap is rotated eletrode which use for increasing efficiency of voltage generation. This paper presented the details of design and constructions are explained. And compare the tesla Transformer reproduce which is created the voltage at 120 kV and frequency 120 kHz for used in HighVoltage Laboratory Faculty of Engineering Rajamangala University of Technology Para Nakhon.
Design and Construction Wind Turbine Generator 200 Watt Rated
This research studies designing building and set up a wind turbine that produce the electric current for decrease the contamination that is poisonous be that know that source of electric energy majority production uses the principle burns fuel is a principle which the way aforementioned is building contamination is poisonous moreover still have the prediction from a scientist arrives at crude oil amount that is will down in the future in now a scientist and an engineer differs to are bound for seek the power resource pays back fuel by consider good environment with therefore in this our project has done work education of a wind mill will by have electric power size about 200 watt the religious routine by a wind mill does feeling numb electric charge that wind speed about 3 – 17 the meter builds [ wasp ] second wind topmost speed that can do feeling numb electricity about 17 the meter builds [wasp] second therefore in installation wind mill will should consider the area to will set up that is appropriate must is place where has wind speed shares 5 – 6 the meter builds [ wasp ] second by a wind mill will begin feeling numb electric charge will do feeling numb electric charge keeps in battery12V (12V/100Ah x 2 child sizes are) by feeling numb electric charge will have control feeling numb electric charge when there are 3-17 wind meter speeds build [wasp] second but when there is wind speed abounds 17 more the meter builds [wasp] second the group controls feeling numb electric charge will cut the circuit goes out for protect the equipment within of wind mill group.