André Michaud |
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| The Corona Effect | ||||||||||||
It can be shown that electron/positron pair production, nucleogenesis and nucleisynthesis could be much more extensive than assumed in current theories in the Sun's corona. It can also be shown that the extreme temperatures observed in the corona may be due to nucleon genesis within the corona and that most heavy elements in the Solar system could be indigenous and could have been produced in the corona by nucleisynthesis. nucleogenesis, nucleisynthesis, neutron, proton, electrons, positron, corona, photosphere, chromosphere, CME, solar winds, 1.022 MeV, pair creation, planetary system, planet, Sun, star.
[1] Markus Aschwanden. Physics of the Solar Corona, Springer, 2006. [2] André Michaud. On the magnetostatic Inverse cube law and magnetic Monopoles. International Journal of Engineering Research and Development e-ISSN: 2278-067X, p-ISSN: 2278-800X, www.ijerd.com. Volume 7, Issue 5 (June 2013), PP.50-66. (http://www.ijerd.com/paper/vol7-issue5/H0705050066.pdf). [3] M. Haïssinsky. La chimie nucléaire et ses applications, France, Masson et Cie, Éditeurs, 1957. [4] G. Goldhaber et al, Observation in e+ e- Annihilation of a Narrow State at 1865 MeV/c2 Decaying to Kπ and Kπππ, Phys. Rev. Let. Vol. 37 No.5, 255 (1976). [5] Blackett, P.M.S & Occhialini, G. (1933) Some photographs of the tracks of penetrating radiation, Proceedings of the Royal Society, 139, 699-724....
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Govind Kumar Rahul, Madhu Khurana, A.K.Sinha |
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Weather Forecasting Using Soft Computing: Minimum Temperature, Maximum Temperature & Pressure |
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In a developing country, like India where agriculture is the base for national economy, the weather conditions including Minimum Temperature, Maximum Temperature and Pressure play a leading role. Therefore having accurate weather forecasting information may allow farmers to make their better decisions on managing their farms. Similar statement can be made for industries where accurate weather condition prediction may help them in their proper development as these are the factors that affect them directly or indirectly. Soft computing using ANN is an effective approach to construct a computationally intelligent system that is able to process non-linear weather conditions within a specific domain, and make predictions. The proposed work focus on modeling of such an intelligent system that can forecast with minimum error rate in term of MSE with a better Architecture.
Soft Computing, Artificial Neural Network (ANN), Back Propagation Algorithms. Multi layer Feed Forward Neural Network (MLFFNN).
[1]. Mohsen Hayati & Zahra Mohebi, Temperature Forecasting Based on Neural Network Approch, World Applied Science Journal 2(6) 613-620, 2007, ISSN 818-4952 ©IDOSI Publications 2007
[2]. Dr.S.Santhosh Baboo & I.Kadar Shereef, An efficient weather forecasting system using Artificial Neural network, International Journal of Environment Science & Development, W1.1, No.4, October-2010,ISSN: 2010-0264 [3]. S.S. De, University of Kolkata, Artificial Neural Network Based Prediction of Max. & Min. Temperature in the Summer-Monsoon month over India, Applied Physics Research,Vol.1,No.2,Nov-2009 [4]. Ch.Jyosthna Devi #1, B.Syam Prasad Reddy#2, K.Vagdhan Kumar#3,B.Musala Reddy#4,N.Raja Nayak#5, ANN Approach for Weather Prediction using Back propagation, International Journal of Engineering Trends and Technology- Volume3Issue1- 2012,ISSN: 2231-5381 Page 19 [5]. 5.Y.Radhika & M.Shashi, Atmospheric Temperature prediction using Support Vector Machine.,International Journal of Computer Theory & Engineering ,Vol.1.No.1.April 2009 1793-8209....
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Vyasraj Koppar, Ravindra M Lathe, Patil Siddharam |
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| Automation of a Planer Using Electropneumatic Devices and Programmable Logic Controller | ||||||||||||
This paper discusses the case study and comparison of productivity of a Conventional Planer with automated planer, there is an attempt to develop a electro-pneumatic circuit for a planing operation using a planer, which makes the operation semiautomatic producing a plane and flat surface. The movements of a planer namely, reciprocating motion of the table, the crosswise movement of the tool head across the cross-rail and the clamping of the component on the table are being automated using pneumatic components namely, pneumatic cylinders, pneumatic DCV‟S, FCV‟S and electrical and electronic devices. The electro-pneumatic circuit developed, simulated and executed is interfaced with PLC. Automation, Productivity, Electro-pneumatic, Relays, Cylinder Switches (Read Switches or magnetic Switches), PLC‟s.
[1]. www.google.co.in, www.wekipedia.com [2]. Machine tools and automation Vol – 35 issue-6, DOI:- 10.1049/ipej:19560041, Publication year-1956 Pages 343-346
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Zuzana Schejbalová, Tomáš Mičunek, Drahomír Schmidt |
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| Dynamic Response of the Dummy in Case of Child Cyclist Collision with Passenger Car | ||||||||||||
The safety of pedestrians and cyclists is justified especially in terms of prevention. This paper deals with the biomechanical analysis of load exerted on the child cyclist in configuration typical for cyclists (sudden enter the road or the case of non-giving way; the car front vs. the left side of the cyclists). Two tests were performed in the same configuration and nominal collision speed, the first one with a bicycle helmet and the second one without the helmet. Using the accelerometers in the head, chest, pelvis and knee of the dummy acceleration fields were detected, which is the cyclist exposed during the primary and secondary collision. In conclusion, the results will be interpreted by values of biomechanical load and severity of potential injuries including kinematic and dynamic comparison with a pedestrian vs. vehicle collision.
child cyclist, passenger car, helmet, dynamic test, collision configuration, biomechanical load.
[1]. EN 1078 Helmets for pedal cyclists and for users of skateboards and roller skates (The czech version of the European standard 1078) Český normalizační institut, Prague, 1998. 20 p.
[2]. Euro NCAP: Pedestrian Testing Protocol. Version 5.3 [3]. http://www.euroncap.com/files/Euro-NCAP-Pedestrian-Protocol-Version-5-3---0-17a43fbd-07d7-4988-8fe6-017e3c73aee9.pdf [4]. Abbreviated Injury Scale (AIS) – Organ Injury Scaling. Association for the Advancement of Automotive Medicine. Illinois USA [5]. http://www.trauma.org/archive/scores/ois.html...
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Venkatesha.K, Dr. Vidya.H.A, Vijay Kumar G |
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| Closed Loop Single Phase Bidirectional AC to AC Buck Boost Converter for Power Quality Improvement | ||||||||||||
A closed loop bidirectional ac to ac buck boost converter circuit using power MOSFET is analyzed for reducing the output voltage sag and improving efficiency of the converter. The regenerative dc snubbers are used directly to power semiconductor switches to absorb energy stored in stray line inductances. These dc snubbers enhance the conversion efficiency as it has very simple structure consisting only of a capacitor. A fast response peak voltage detector for fast output voltage control is also proposed. It is observed from the simulation results obtained using MATLAB simulink, that the proposed closed loop scheme gives good dynamic and steady state performances with a high-quality output voltage, improved power factor, low harmonics, improved efficiency and significant reduction of the filter size.
ac chopper, dc snubbers, Peak voltage detector, PWM, Harmonics, voltage sag.
[1]. CLARK, J.K.: "AC power conditioner: design and applications‟, Academic, New York, 1990.
[2]. IEEE Orange Book, IEEE Standard 446-1987: "IEEE recommended practice for emergency and standby power systems for industrial and commercial applications‟ IEEE, 1987. [3]. HAMED, S.A.: "Steady-state modeling, analysis, and performance of transistor-controlled ac power conditioning systems‟,IEEE Trans .Power Electron.. 1990, 5, pp. 305-313. [4]. ADDOWEESH, K.E., and MOHAMADEIN, A.L.: "Microprocessor based harmonic elimination in chopper type ac voltage regulators‟,IEEE Trans. Power Electron., 1990, 5, pp. 191-200NGO, I.D.T.: "A new flyback ac/ac voltage converter‟, IEEE Power Electron. Spec. Con$ Rec., 1986, pp. 497-503 [5]. BARBI, I., FAGUNDES, J.C., and KASSICK, E.V.: "A compact ac/ ac voltage regulator based on an ac/ac high frequency flyback converter‟, IEEE Power Electron. Spec. Con$ Rec., 1991, pp.84G352......
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Anuroop.P.V, K.Radhakrishnan, A. Saravana Kumar |
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| Droop Control of Parallel Inverters with LCL Filter and Active Damping in Stand-alone Operation | ||||||||||||
Because of the acute shortage of conventional energy resources, renewable energy harness is gaining attention. Voltage source inverter forms the interface to feed the power from the renewable source to utility. In order to increase the modularity of the system, the use of several parallel inverters of reduced rating is preferred. An effective control strategy to maintain the amplitude and frequency of output voltages of each inverter at the specified values is necessary, in order to avoid circulating currents and to share load currents proportionally. When inverters are connected in parallel without communication each inverter should be able to form the grid. This paper presents a simple and effective droop control strategy for two three phase inverters to develop a grid. Each inverter is assigned with an LCL filter at the output and active damping. The control strategy consists of two control loops, an outer voltage control loop and inner current control loop.
Active damping, droop control, load sharing, circulating current, LCL filter.
[1] Josep M. Guerrero, Nestor Berbel, Jose Matas, Jorge L. Sosa' , and Luis Garcia de Vicufia, "Droop Control Method with Virtual Output Impedance for Parallel Operation of Uninterruptible Power Supply Systems in a Microgrid" IEEE Trans. on Neural Networks, vol. 4, pp. 570-578, July 1993.
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K. S. Agrawal |
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| Performance of Venturi Scrubber | ||||||||||||
In this article we have made an attempt to survey some results on performance of jet ejector. The literature is also reviewed to pursue further work in this area.
HEVS, EVS, jet ejector, performance of venture scrubber, characteristics of jet ejector, efficiency.
[1]. Acharjee, D. K., Bhat, P. A., Mitra, A. K., and Roy, A. N., (1975), Studies on momentum transfer in vertical liquid jet ejectors, Indian Journal of Technology, 13, 205-210.
[2]. Agrawal, K. S. (1999), Studies on Ejector, M.E. Dissertation, The Maharaja Sayajirao University of Baroda, Vadodara. [3]. Ananthanarayanan, N. V., and Viswanathan, S., (1999), Predicting the liquid flux distribution and collection efficiency in cylindrical venturi scrubbers, Ind. Eng. Chem. Res., 38, 223-232. [4]. Ananthanarayanan, N. V., and Viswanathan, S, (1998), Estimating Maximum Removal Efficiencyin Venturi Scrubbers, AIChE Journal, 44(11), 2539-2560. [5]. Appusamy, A., Iyyaswamy, R. and Murugesan T., (2008), Gas holdup and energy dissipation in liquid-gas ejectors, Journal of Chemical Technology and Biotechnology , 83, 1064-1071....
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Naveen Kumar, Garima Saini |
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| A Multiband Pifa with Slotted Ground Plane For Personal Communication Handheld Devices | ||||||||||||
In mobile phones and several other wireless communication devices, antenna is an important element which decides the quality & performance of the device over various communication standards. In this paper, a compact internal Planar Inverted-F Antenna (PIFA) with a ground plane having two open ended slots is proposed which is very thin compared to conventional PIFA structure. By using the ground plane as a radiator element along with top plate of PIFA structure, the height of PIFA can be reduced to a great extent, which further results in reducing thickness of mobile phones. In this paper the proposed antenna has volume as 25 x 15 x 3.8 mm3 and it is simulated & analyzed using HFSS software. The antenna is designed to operate at GPS, GLONASS, DCS (1800 MHz), PCS (1900 MHz), UMTS (2100 MHz), Bluetooth (2400 MHz), 4G LTE (2300 MHz & 2600 MHz), WLAN (5.2 GHz) standards. The simulation results show that the performance parameters of the antenna are satisfying the requirements of advance wireless communication devices.
Compact, Planar Inverted-F Antenna (PIFA), GLONASS, HFSS, radiator, GPS, LTE.
[1] Kin-Lu Wong, "Planar Antennas for Wireless Communication", Published by John Wiley & Sons, Inc., Chapter: 2, Page(s): 26-65, 2003. [2] Belhadef, Y.; Boukli Hacene, N., "PIFAS antennas design for mobile communications", 7th IEEE International Workshop on Systems, Signal Processing and their Applications (WOSSPA), Page(s): 119 – 122, May 2011. [3] M. F. Abedin and M. Ali, "Modifying the Ground Plane and Its Effect on Planar Inverted-F Antennas (PIFAs) for Mobile Phone Handsets", IEEE Antennas and Wireless Propagation Letters, Vol. 2, Page(s): 226 – 229, 2003.
[4] Sinhyung Jeon, Hyengcheul Choi, and Hyeongdong Kim, "Hybrid Planar Inverted-F Antenna with a T-shaped slot on the ground plane", ETRI Journal, Vol. 31, No. 5, Page(s): 616-618, October 2009. [5] C. Picher, J. Angueral, A. Andújar, C. Puente1, and S. Kahng, "Analysis of the Human Head Interaction in Handset Antennas with Slotted Ground Planes", IEEE Antennas and Propagation Magazine, Vol. 54, No. 2, Page(s): 36 – 56, April 2012....
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Suman Anand, Kunal Sharma |
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| High Velocity Impact Analysis on "Composite Material Block" Using FEM Approach | ||||||||||||
The failure of an AL6061-T6 and Kevlar-29 composite plate under high-velocity impact from an S-S (structural Steel) projectile tool was investigated using the nonlinear explicit finite element software, ANSYS AUTODYAN. Two velocity ranges 350 m/s and 700 m/s were used for FEM simulation. It was analyzed that AL6061-T6 is more resistant than KELVAR 29 at both ranges but Kevlar 29 is light in weight than AL6061 and have more application in aviation industry. The composite laminate and the tool were venerated by solid FEM elements. The contact between the tool and plate was simulated using a surface-to-surface eroding contact algorithm. It was also observed that tool dimension and mass play important role in failure conditions.
AL6061-T6, Kevlar, high velocity impact, FEM approach, Autodyan.
[1]. Meyers, M. A., (1994) "Dynamic behavior of Materials", John Wiley & Sons, ISBN 0-471-58262-X.
[2]. Finite Element Simulation of Ballistic Impact in Ballistic Studies , MSME thesis, Lexington, KY 2003. [3]. Ipson, T.W. and R.F. Recht. "Ballistic-penetration Resistance and its Measurement."Vol. 15, pp 247-256, 1975 [4]. "Penetration Equations Handbook for Kinetic Energy Penetrators." Joint Technical Coordinating Group for Munitions Effectiveness, 61 JTCG/ME-77-16, Oct. 1985. [5]. Zukas, Jonas A. "Survey of Computer Codes for Impact Simulation." High Velocity Impact Dynamics. Ed. Jonas A.Zukas. New York: John Wiley and Sons, pp. 593-714, 1990....
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