iosr-JEEE   Volume-11 ~ Issue-6 ~ Nov-Dec 2016

Abstract: A compact method to analyze the input impedance of sources in a multilayers media has been developed. The dielectric layers are assumed to be anisotropic where all optic axes are perpendicular to the stratification. A novel Microstrip B patch antenna has been presented. The effect of anisotropic Superstrate layers on B shaped Microstrip Patch antenna is investigated. A variation formulation and a simulating results are employed to enhance the performance of Return loss (S-parameters), Axial Ratio, Directivity and Gain of B
shape Patch Antenna. The comparison of input impedance for rectangular Microstrip patch using our method and a published data are found to be in good agreement.
Key Words: Anisotropic Superstrate, Patch Antenna, Gain, Directivity, Return loss.

[1] B. Braaten, R. Nelson, I. Rogers, Input Impedance and Resonant Frequency of a Printed Dipole With Arbitrary Length Embedded in Stratified Uniaxial Anisotropic Dielectrics,IEEE Antennas and Wireless Propagation Letters. 8, 2009, 806-810.
[2] C. Gürelm, E.Yazga, Characteristics of a Circular Patch Microstrip Antenna on Uniaxially Anisotropic Substrate,IEEE Trans. on Antennas and Propagation, 52 (10), October, 2004, 2532-2537.
[3] F. Bouttout,F. Benabdelaziz, A.Benghalia, D.Khedrouche, T.Fortaki, Uniaxially anisotropic substrate effects on resonance of rectangular microstrip patch antenna, Electronics Letters, 35 (4), 18th February, 1999, 255-256.
[4] R. Nelson, D. Rogers, D'assungao, Resonant Frequency of a Rectangular Microstrip Patch on Several Uniaxial Substrates,IEEE Trans. on Ante.Propagation, 38 (7),July, 1990, 973-981.
[5] A. Eroglu, J. K. Lee, Far field radiation from an arbitrarily orientated Hertzian dipole in the presence of layered anisotropic medium,IEEE Trans. Antennas Propag., 53 (12),December, 2005, 3963–3973.

Abstract: DC motor speed control was carried out in this study using Proportional Integral Derivative (PID) and Sliding Mode Control (SMC) methods. Disturbance is added to and removed from the motor shaft for short periods using a relay to compare the performances of the controllers. SMC and the PID Controller were designed using LabVIEW and tools. The motor is rotated at the desired speed by controlling the H-bridge through the DAQ card. The experimental setup uses LabVIEW software, an N-6024E DAQ card, an H-bridge, a DC motor, and encoder. A variable PWM signal is used at the PID control, and a constant amplitude voltage (± 5V) is applied to the DC motor by the SMC..............

Keywords: LabVIEW, automatic control, PID, SMC, speed control

[1]. Khan, M.R., Khan, A.A.&Ghazali, U., 2015. Speed Control of DC Motor under Varying Load Using PID Controller. International Journal of Engineering, 9(3), pp.38–48.
[2]. Ahmed, A.M.,Mohamed S. E., Amr A.E.&Areed, F.F., 2015. Brushless Dc Motor Speed Control Using Proportional-Integral And Fuzzy Controller. International Journal of Computer Applications, 109(10), pp.29–35.
[3]. Kumar, D., Hussain, M., Tyagi, S. V., Gupta, R.&Salim, 2015. LabVIEW Based Speed Control of DC Motor Using PID Controller. International Journal of Electrical and Electronics Research, 3(2), pp.293–298.
[4]. Li, H., 2014. Application of PID-type iterative learning control for DC motor. Computer Modelling & New Technologies, 18(5), pp.247–251.
[5]. Dumanay, A.B., Istanbullu, A.&Demirtaş, M., 2009. Remote Laboratory application of a DC Motor Speed Control with PID. In The Education of Electrical, Electronics, Computer and Biomedical Engineering IV. National Symposium, Eskisehir, Turkey. pp. 241–244.

Abstract: It is becoming most important to accurately model and analyze distribution systems. Because day per day it becoming more complex. The number of users are increasing very fast so distribution system is becoming very large. Every node in the distribution system is important because many users are connected to a single node. So it is very important to model a power distribution system with all components for analyzing all the condition and for future planning. For analyzing the distribution data the REAL TIME DIGITAL SIMULATOR is now a complete digital system. Thanks to the progress accomplished in the area of Real Time Computation. This digital simulator, called RTDS is equipped with an integrated system combining real-time and off-line software.........

Keywords: DC-DC converter, boost converter, fuel-cell, voltage, Efficiency

[1]. Kerstin W. H., "Distribution system modeling and analysis" CRC Press LLC, Boca Raton, Florida, 2002.
[2]. Real-Time Digital Simulator Users Manual, RTDS Technologies, Winnipeg, Manitoba, Canada, 2012.
[3]. IEEE Distribution Planning Working Group Report, "Radial distribution test feeders", IEEE Transactions on Power Systems,, August 1991, Volume 6, Number 3, pp 975-985.
[4]. MATLAB, The Math works, Inc., Natick, MA, USA.
[5]. Bye on, Gilsung, Season Oh, and Gilsoo Jang. "A New DC Offset Removal Algorithm Using an Iterative Method for Real-Time Simulation", IEEE Transactions on Power Delivery, 2011.

Abstract: The applications of renewable energy systems have become very important in all domains nowadays. One of the most important applications is a Photovoltaic (PV) traffic light system. A traffic light system is considered to be one of the most critical applications that can solve the congestion problems of the streets. This paper presents a solution for the unpredictable repeated power failure for the traditional grid-connected traffic light systems by using stand-alone PV system. The proposed PV system consists of a PV array, a DC-DC converter, and a battery for backing up. Also, this paper gives a complete modeling, simulation and control of the PV Power system by using MATLAB-Simulink. The proposed control of the PV power system performs two functions that are maximum power point tracking (MPPT) for the PV system and battery charging.........

Keywords: Renewable energy, photovoltaic, traffic system control, maximum power point tracking.

[1]. José A. Vieira, Alexandre M.Mota, "Implementation of a Stand-Alone Photovoltaic Lighting System with MPPT Battery Charging and LED Current Control," IEEE International Conference on Control Applications, September , 2010.
[2]. Jen-HaoTeng, Wei-Hao Huang, Tao-An Hsu and Chih-Yen Wang, "Novel and Fast Maximum Power Point Tracking for Photovoltaic Generation," IEEE Transactions On Industrial Electronics, March, 2016.
[3]. Mohamed M. Algazar, Hamdy AL-monier and HamdyAbd EL-halim, "Maximum power point tracking using fuzzy logic control," International Journal of Electrical Power & Energy Systems · July 2012.
[4]. Jaya. N, Madhuri. A "PIC Based Solar Charging Controller For Battery," International Journal of Engineering Science and Technology Vol. 4, No.02 February 2012
[5]. M. Makhlouf, F. Messai1, H. Benalla "Modeling and Simulation of Grid-connected Hybrid Photovoltaic/Battery Distributed Generation System," Canadian Journal on Electrical and Electronics Engineering Vol. 3, No. 1, January 2012.

Abstract: Abstract：Based on the newly developed DaVinci technology, a designing scheme of embedded web video monitoring system is proposed. The scheme combines high-speed and dual-core signal processor (TMS320DM6467) with embedded Linux operating system as the platform to complete the H.264 encoding, transmission and storage of video signal. Building the embedded Web server, user can login into the server and monitor at real-time. According to the method of rate-distortion optimization, the paper proposed an improved rate control algorithm. The algorithm can significantly improve the coding rate of video stream and the coding quality. It is proved that the average bit rate error of the proposed algorithm is 1.2% lower than that of the JVT-G012 algorithm. Besides, the signal to noise ratio is improved by 1.16dB. This system has advantages of strong real-time, interactive and high video quality so that it can be used for remote video surveillance.

Keywords:DaVinci technology; Video monitoring; Embedded Web server; Rate control; Rate-distortion optimization.

[1] Xiaocong JIN, Yiqing HUANG, Qin LIU,Shuijiong Wu, Takeshi IKENAGA. Fast Spatial Direct Mode Decision for B Slice based on
Temporal Information in H.264 Standard[C]. Intelligent Signal Processing and Communication System, 2009.
[2] Liu Fuqiang. Digital video surveillance system development and application. Beijing: Mechanical Industry Press [M], 2003
[3] Chi-Sun Tang, Chen-Han Tsai, Shao-Yi Chien, Liang-Gee Chen. Algorithm and Hardware Architecture Design for Weighted
Prediction in H.264 [C] IEEE International Symposium on Digital Object Identifier, 2006.
[4] Marta Karczewicz and Ragip Kurceren. The SP and SI Frames Design for H.264/AVC. IEEE Transactions on Circuits and Systems
for Video Technology, Vol. 13, July 2003.7(7).
[5] T. Stockhammer, M. Hannuksela, and T. Wiegand. H.264/AVC in Wireless Environments. Transactions on Circuits and Systems for
Video Technology, Vol. 13, pp.657-673, July 2003.

Abstract: Outdoor polymer insulators are exposing to different contaminated conditions and environmental factors like UV rays for a long time. These will degrade the insulator performance and decrease the life span. However, the surface of insulating material, such as silicone (Si) rubber will lost its hydrophobic nature due to these severe environmental conditions. Long term performance analysis of polymer insulators is essential to estimate the life expectancy. In this paper, experimental investigation is carried out on 33kV silicone composite insulators under salt contamination and UV ray's exposure. Insulator performance is analyzed

Keywords: Polymer composite Insulator, UltraViolet(UV)rays, Salt pollution, Leakage Current(LC), Breakdown Voltage (BDV)

[1] H.Homma,"Determination of long-term performance of polymeric insulators for distribution lines by salt fog method,"Conference on electrical insulation and die electric phenomenon, pp. 401-404, 2006.
[2] Xingliang Jiang, "Study on AC artificial contaminated flash over performance of various types of insulators,"IEEE transactions on power delivery, vol. 22 october 2007, pp. 2567-2574.
[3] Isaias Ramirez, "Salt fog testing of RTv coated ceramic insulators and comparision with HTV silicon rubber insulators,"IEEE transactions , 2012, pp. 794-797.
[4] IEC 61109, "Composite suspension and tension insulators for AC over head lines," 2008. IEC 62217, "Polymeric insulators for indoor and outdoor use," 2012.

Abstract: In this study, Afyon Kocatepe University Dazkırı Vocational School in indoor air of the laboratory is provided lighting and computer-aided control of the outlet. Two temperature sensors to measure the internal and external temperatures of the laboratory to measure the moisture inside and outside the two humidity sensors are used. The data from the sensors are monitored in real time from the computer and can be controlled. Design made with interfaces can be done manually or automatically. Laboratory heating and heating process is also determined as the best temperature for laboratory research in the laboratory with in20OC in automatic mode to maintain a constant..............

Keywords: Microcontroller, Computerized Indoor Air Control, Laboratory Automation

[1]. Al-Karaghouli, Alyüz, B., V.Sevil "Volatile Organic Compounds in Indoor Atmosphere and Their Effects on Health", Trakya University Journal of Science, Vol. 7 (2), Page 109-116, 2006
[2]. M, Soil., G, Gülsoy, Y., Demiral., A, Çırmın., S, C, Sufuoğlu., "Internal Air Quality in University Laboratories and Occupational Risk Factors of Employees" 11th National Installation Engineering Symposium, 2013
[3]. Republic Of Turkey Ministry Of Health, "Health Approach to Turkey's Air Pollution and Climate Change Issues," Ministry of Health Publication No: 811, Ankara, 2010.
[4]. Access Date: 12.10.2016. http://www.aosong.com/en/products/details.asp?id=109Books: