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Estimation of Ground Water Reserves Without Drilli

  •  Mechanical Engineering Department Memorial University Of Newfoundland, St. John’s, Newfoundland, Canada
  • asharan@mun.ca
  • Abstract : In this work, estimate of water reserves without drilling operations are carried out. The method used is using field voltage measurements and three dimensional finite element analysis and optimization calculations. . The method is explained by considering three cases where unknowns solved are ( a) voltage distribution due to applied voltage in the current carrying poles , (b ) conductivities of various layers , and ( c ) conductivities and depth of layers given the voltages measured at different points on the ground.

    Keyword : MATLAB, electrical conductivity, resistivity, equipotential

    Realization of RF Transceiver for Wireless sensor

  •  Dept. of Electronics and Communication Engineering Cambridge Institute of Technology, Ranchi
  • mail2sbdash@gmail.com
  • Abstract : This paper presents the system level design and simulation of a 1-Mb/s 2.4 GHz transceiver. The RF transmitter consists of a QPSK modulator, an up conversion mixer, a power amplifier and a 2.4 GHz Band pass filter. At the receiver RF front end, the low noise amplifier with down conversion to zero-IF, a low pass filter and a QPSK demodulator is used. This design is focused on the determination of optimum performance of 2.4GHz wireless transceiver where the expected results would be achieved as two independent phase signals represented as I signal and Q signal. These two independent signals are generated by the help of a signal generator to be processed in transmitter and receiver. The various block parameters of the transmit/receive RF front end like noise figure, gain , 1dB compression point and IIP3 are simulated and optimized to meet the low power and low cost transceiver specifications.

    Keyword : Direct conversion, QPSK modulation, noise figure, gain low power , transceiver

    WIRELESS SPEED CONTROL OF INDUCTION MOTOR

  •  Department of Electrical & Electronics Engineering, Cambridge Institute of Technology, Tatisilwai, Ranchi, Jharkhand, India.
  • bcsaha1012@gmail.com
  • Abstract : : The goal of this paper is to wireless control of induction motor using PLC .The PLC is the emerging technology in the electrical and electronics world because the it have the various component such as memory input and output system, this function allows a PLC to read the status of its input terminals and energize or de-energize its output terminals. This paper investigates the communication between PLC and PC through wireless connection for controlling the speed of induction motor. In wired network system the communication between PLC and motor, I get the RPM of induction motor through manually using tachometer and manually change the speed reference through VFD. So I get the approx straight line output between speed reference and manually RPM. But in case of wireless system the connection between PLC and PC is very interesting and useful for future work. In this method the speed reference input is given in PC through a RS logix 5000 software and is running in both mode forward and reverse direction manually. The VFD is much important role play for record the data of voltages, currents, RPM, (in forward or reverse mode) also DC bus voltage etc, in loading or without loading in motor respectively. So the output waveform between speed reference and RPM in wireless system is also a straight line when we record the RPM using tachometer but in PLC the indicated reading is recorded with slip. So in this paper I got a conclusion between speed reference and RPM with both connections wired or wireless the changing of output waveform is not vary. So the wireless system is very useful for large and future scope.

    Keyword : Induction Motor , PLC, VFD, PC,AC Drives,Cable

    Design and Analysis of Minkowski Square Loop Fract

  •  *Jharkhand Rai University, Ranchi, 1and Cambridge Institute of Technology, Ranchi
  • renu.si@rediffmail.com
  • Abstract : With the rapid evolution in wireless communication systems and increasing importance next generation wireless applications, wideband and low profile antennas are in great demand for both commercial and military applications. Applying fractals to antenna elements allows for smaller, resonant antennas that are multiband/broadband and may be optimized for gain. In this paper, Minkowski fractal antenna for Bluetooth application has been designed. Apart from this, it can be used for various other applications as well because of its multiband feature. The antenna is fed by Microstrip feeding technique. The proposed patch antenna is designed and simulated on IE3D simulation software and it is designed to operate in 2.45GHz band. In this analysis, we have compared the antenna parameters such as gain, impedance, antenna efficiency, radiation efficiency, radiation pattern, polar plots, VSWR and Q-factor. Reduction in patch antenna size is achieved when performing fractalization of the main patch.

    Keyword : Minkowski Fractal Antenna, Microstrip feed, Radiation pattern, VSWR

    Quality of Service (QoS) for improvement of Channe

  •  *Deptt. of ECE, CIT, Ranchi and **SIST, Bhopal
  • rasika.rikkig@rediffmail.com
  • Abstract : The wireless mesh network is an emerging technology for the next generation wireless Internet. It works as a backhaul for other wireless network. There are number of issues which need to be considering in wireless mesh network. As in other networks like MANET, ADHOC, SENSOR power is the major constrained. But it is not so in WMN. So, Power can be optimally utilised. It can be used to increase throughput and channel utilization of the network so that to improve QoS. Here we will discuss some major issues which need to be considered in WMN. Wireless mesh network operates similar as the network of fixed routers only difference is that they are connected with the wireless links. This paper gives the brief overview of the issues exist in WMN and the existing channel assignment schemes in multicast WMN.

    Keyword : QoS, mesh network; channel assignment; multicast

    AUTOMATED MANUFACTURING WITH LOW COST MACHINES USI

  •  Mechanical Engineering Department Memorial University Of Newfoundland, St. John’s, Newfoundland, Canada
  • asharan@mun.ca
  • Abstract : In this paper, automated method of manufacturing in remote and rural areas are discussed. These areas many times lack supply of electrical energy. This is overcome by introducing efficient method of solar energy conversion into electricity using photo- voltaic solar panels. Next, to introduce better productivity and quality control, x-y robots are used which use micro-processor control. The end-effector of this robot carries an embroidery frame which is given motion in two dimensions. The two-dimensional motion is co-ordinated with sewing machine needle’s motion.

    Keyword : Manufacturingcomputer aided, Quality production in remote areas, Economical manufacturing in remote areas

    Microscopic Study of Different Compositions of Bra

  •  *Deptt.of Mechanical Engg., CIT ,Jharkhand, INDIA and **Deptt. of Mechanical Engg., MIT Moradabad U.P., INDIA
  • poojakatheria@gmail.com
  • Abstract : Brass is one of the most important domestic, industrial and ornamental alloys of Cu and Zn. Different compositions of brass ranging from Cu wt% 60 to 80 are used wide over. In present study, brass in four compositions has been prepared by sand casting and optical micrography has been done to compare the effect of composition on microstructure. The superheat temperature has also been varied in two steps viz. 980 oC and 1100oC and the effect on microstructure has been reported.

    Keyword : Brass, Microscopy, Dross, Grams, Casting

    Short Time Fourier Transform based Dominant Freque

  •  *Deptt. of ECE, CIT, Ranchi and **BIT Mesra, Mesra, Ranchi, Jharkhand, India
  • sumanta.bh@gmail.com
  • Abstract : In this paper authors propose a novel method of dominant frequency detection, based on the short time Fourier transforms (STFT), to quantify and visualize the information as feature contains in the specific frequency bands defined in the analysis of electroencephalogram (EEG) signal for brain computer interface (BCI). The raw EEG subjected to band pass filter. The filtered signal subjected to the proposed algorithm for calculating the variance of relative power spectral intensity. The dominant frequency components are easily identified by analyzing the variance of relative power spectral intensity using proposed method. The effectiveness of proposed method of EEG signal processing is validated by self-generated artificial sine wave signal, Steady State Visual Evoked Potential (SSVEP) data set and single subject Movement Imagery (MI) BCI competition data set.

    Keyword : Brain-computer interface (BCI), Electroencephalogram (EEG), Short Time Fourier Transforms (STFT), Steady State Visual Evoked Potential (SSVEP) and Movement Imagery (MI).