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Journal articles on the topic 'Physics generator'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Grzybek, Dariusz. "Piezoelectric Generators in the Energy Harvesting Systems." Solid State Phenomena 248 (March 2016): 243–48. http://dx.doi.org/10.4028/www.scientific.net/ssp.248.243.

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Piezoelectric generator is a device used to convert mechanical energy into electrical energy. The basic element of the generator is made from piezoelectric material in which electrical energy is created as a result of deformations caused by reactions of mechanical structure of the generator. The amount of obtained electrical energy depends mainly on the piezoelectric material used, construction of the generator as well as a type of the source of mechanical energy. Construction of the generator is adjusted to the type of the source of mechanical energy. In order to obtain electrical energy from mechanical vibrations, the most frequent solution is beam structure. Effective electric energy generation by the piezoelectric generators depends on the following main factors: piezoelectric material used, generator structure, electronic system of the control and storage of energy, and the generator size. Generated by piezoelectric generators electric energy, can be used to power of miniaturized electronic devices with low power supply demand. The goal may be monitoring of the structure or industrial processes in hardly accessible places or/and in systems requiring the use of a big number of sensors. It will make cutting the operating costs possible and allow to create the eco-friendly technology without waste discharged batteries.

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2

Jercic, Marko, and Nikola Poljak. "Exploring the Possibility of a Recovery of Physics Process Properties from a Neural Network Model." Entropy 22, no. 9 (September 7, 2020): 994. http://dx.doi.org/10.3390/e22090994.

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The application of machine learning methods to particle physics often does not provide enough understanding of the underlying physics. An interpretable model which provides a way to improve our knowledge of the mechanism governing a physical system directly from the data can be very useful. In this paper, we introduce a simple artificial physical generator based on the Quantum chromodynamical (QCD) fragmentation process. The data simulated from the generator are then passed to a neural network model which we base only on the partial knowledge of the generator. We aimed to see if the interpretation of the generated data can provide the probability distributions of basic processes of such a physical system. This way, some of the information we omitted from the network model on purpose is recovered. We believe this approach can be beneficial in the analysis of real QCD processes.

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3

LUI, OI-YAN, CHING-HUNG YUEN, and KWOK-WO WONG. "A PSEUDO-RANDOM NUMBER GENERATOR EMPLOYING MULTIPLE RÉNYI MAPS." International Journal of Modern Physics C 24, no. 11 (October 14, 2013): 1350079. http://dx.doi.org/10.1142/s0129183113500794.

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The increasing risk along with the drastic development of multimedia data transmission has raised a big concern on data security. A good pseudo-random number generator is an essential tool in cryptography. In this paper, we propose a novel pseudo-random number generator based on the controlled combination of the outputs of several digitized chaotic Rényi maps. The generated pseudo-random sequences have passed both the NIST 800-22 Revision 1a and the DIEHARD tests. Moreover, simulation results show that the proposed pseudo-random number generator requires less operation time than existing generators and is highly sensitive to the seed.

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4

Huang, Min, Ziyang Chen, Yichen Zhang, and Hong Guo. "A Gaussian-Distributed Quantum Random Number Generator Using Vacuum Shot Noise." Entropy 22, no. 6 (June 2, 2020): 618. http://dx.doi.org/10.3390/e22060618.

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Among all the methods of extracting randomness, quantum random number generators are promising for their genuine randomness. However, existing quantum random number generator schemes aim at generating sequences with a uniform distribution, which may not meet the requirements of specific applications such as a continuous-variable quantum key distribution system. In this paper, we demonstrate a practical quantum random number generation scheme directly generating Gaussian distributed random sequences based on measuring vacuum shot noise. Particularly, the impact of the sampling device in the practical system is analyzed. Furthermore, a related post-processing method, which maintains the fine distribution and autocorrelation properties of raw data, is exploited to extend the precision of generated Gaussian distributed random numbers to over 20 bits, making the sequences possible to be utilized by the following system with requiring high precision numbers. Finally, the results of normality and randomness tests prove that the generated sequences satisfy Gaussian distribution and can pass the randomness testing well.

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5

Bhattacharjee, Kamalika, Dipanjyoti Paul, and Sukanta Das. "Pseudo-random number generation using a 3-state cellular automaton." International Journal of Modern Physics C 28, no. 06 (April 19, 2017): 1750078. http://dx.doi.org/10.1142/s0129183117500784.

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This paper investigates the potentiality of pseudo-random number generation of a 3-neighborhood 3-state cellular automaton (CA) under periodic boundary condition. Theoretical and empirical tests are performed on the numbers, generated by the CA, to observe the quality of it as pseudo-random number generator (PRNG). We analyze the strength and weakness of the proposed PRNG and conclude that the selected CA is a good random number generator.

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6

Aoki, M., and T. Ueno. "Sound power generation using magnetostrictive power generator." Journal of Physics: Conference Series 1052 (July 2018): 012084. http://dx.doi.org/10.1088/1742-6596/1052/1/012084.

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7

CHO, SUNG-KEUN, CHANG-SUNG SEOK, BONG-KOOK BAE, and JAE-MEAN KOO. "EVALUATION OF THE HOOP TENSILE PROPERTIES OF A STEAM GENERATOR TUBE." International Journal of Modern Physics B 20, no. 25n27 (October 30, 2006): 4129–34. http://dx.doi.org/10.1142/s0217979206040970.

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The steam generators in a pressurized water reactor (PWR) are large heat exchangers that use the heat from the primary reactor coolant to make steam on the secondary-side to drive turbine generators. Hoop stress is known to be the main cause of fracture of inner pressurized tubes such as the steam generator tube. However, because the steam generator tube is too small to be manufactured to a standard tensile specimen in the hoop direction, the axial tensile properties of the steam generator tube (or original material properties) instead of hoop tensile properties have been used to estimate the fracture properties of a steam generator tube. In this study, we have conducted not only axial tensile tests but also ring tensile tests. From these test, both the axial and hoop tensile properties of steam generator tubes were obtained, and the reliability of the hoop tensile properties were confirmed by burst test of a real steam generator tube.

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8

Nuwayhid, R. Y. "The Essential Physics of Thermoelectricity for Mechanical Engineers." International Journal of Mechanical Engineering Education 30, no. 4 (October 2002): 351–68. http://dx.doi.org/10.7227/ijmee.30.4.7.

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Frequently, mechanical engineers are interested in the generation of power, and as such study the efficiency of a specific system by applying the principles of classical thermodynamics. Studying a thermoelectric generator is no different and the thermodynamics involved fall into the same group classed as heat-engines. Beyond that the mechanical engineer usually falters as electronic and material aspects come into play. While a full study is quite involved, presented here is a simplified attempt to bring out the basics that underline the physical processes involved in a thermoelectric generator. The engineering student of energy conversion and thermoelectricity is thus exposed somewhat to the physics without necessarily going into specialized detail. Inherently involving several related yet distinct mechanical and electronic engineering fundamental topics, thermoelectricity provides a perfect interdisciplinary vehicle for an early introduction to engineering design.

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9

Ivanov, I. E. "Narrow-Band Generation of Plasma Relativistic Microwave Generator." Plasma Physics Reports 47, no. 5 (May 2021): 440–52. http://dx.doi.org/10.1134/s1063780x21050032.

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10

Pan, Z. L., J. H. Yang, and X. B. Cheng. "Research of the anti-resonance pulse forming network and its application in the Marx generator." Laser and Particle Beams 34, no. 4 (October 17, 2016): 675–86. http://dx.doi.org/10.1017/s0263034616000641.

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AbstractAn anti-resonance pulse forming network (PFN) has been designed, analyzed, and tested for its application in generating quasi-square pulses. According to the circuit simulations, a compact generator based on two/three-section network was constructed. Two-section network is applied in the generator due to its compact structure, while three-section network is employed for generating pulses with higher quality. When two-section network is applied in the generator, the full-width at half-maximum of the load pulse is 400 ns, at the same time, its rise time, flat top and fall time are 90, 180 and 217 ns, respectively. When the three-section network is applied with the same pulse width of the load pulse, the rise time of the output decreases to 60 ns, while the flat top increases to 240 ns and the fall time reduces to 109 ns. Meanwhile, this kind of network could be used to shape the output pulses of generators whose equivalent circuit is LC series discharge network, such as MARX generator, into quasi-square pulses. And the preliminary experiment demonstrates that anti-resonance network could work well on four-stage Marx generators. A sine pulse generated by the four-stage Marx generator is shaped into a quasi-square pulse with voltage of 11.8 kV and pulse width about 110 ns based on two-section anti-resonance network.

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11

Velikhov, E. P., A. G. Afonin, V. G. Butov, V. P. Panchenko, S. V. Sinyaev, V. A. Solonenko, G. A. Shvetsov, and A. A. Yakushev. "A New Generation Pulsed MHD Generator." Doklady Physics 64, no. 5 (May 2019): 238–43. http://dx.doi.org/10.1134/s1028335819050082.

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12

Keawboonchuay, C., and T. G. Engel. "Maximum power generation in a piezoelectric pulse generator." IEEE Transactions on Plasma Science 31, no. 1 (February 2003): 123–28. http://dx.doi.org/10.1109/tps.2003.808874.

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13

Ngọc Hưng, Nguyễn, and Nguyễn Minh Thuần. "Electrostatic generator Van de graaff in teaching physics." Journal of Science, Educational Science 61, no. 8B (2016): 165–69. http://dx.doi.org/10.18173/2354-1075.2016-0171.

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14

Haurylavets, V. V., and V. V. Tikhomirov. "Mathematical simulation of helical flux compression generator physics." Mathematical Models and Computer Simulations 5, no. 4 (July 2013): 334–37. http://dx.doi.org/10.1134/s2070048213040054.

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15

Singh, Vijay A., and Manish Kapoor. "The Magnetohydrodynamic Generator A Physics Olympiad problem (2001)." Resonance 7, no. 7 (July 2002): 68–75. http://dx.doi.org/10.1007/bf02836756.

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16

Ruscak, L. J., and R. N. Bruce. "Multiarc Generator." IEEE Transactions on Plasma Science 15, no. 1 (1987): 51–55. http://dx.doi.org/10.1109/tps.1987.4316659.

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17

Andrecut, M. "Logistic Map as a Random Number Generator." International Journal of Modern Physics B 12, no. 09 (April 10, 1998): 921–30. http://dx.doi.org/10.1142/s021797929800051x.

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For the largest value of the control parameter, the logistic map is able to generate an infinite chaotic sequence of numbers. Here we describe a simple method for obtaining a random number generator based on this property of the logistic map. Comparing to usual congruential random generators, which are periodic, the logistic random number generator is infinite, aperiodic and not correlated. An aperiodic random number generator is a valuable tool for computer simulation methods.

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18

Cardell, Sara D., Verónica Requena, Amparo Fúster-Sabater, and Amalia B. Orúe. "Randomness Analysis for the Generalized Self-Shrinking Sequences." Symmetry 11, no. 12 (November 28, 2019): 1460. http://dx.doi.org/10.3390/sym11121460.

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In cryptography, the property of randomness in pseudo-random generators is very important to avoid any pattern in output sequences, to provide security against attacks, privacy and anonymity. In this article, the randomness of the family of sequences obtained from the generalized self-shrinking generator is analyzed. Moreover, the characteristics, generalities and relationship between the t-modified self-shrinking generator and the generalized self-shrinking generator are presented. We find that the t-modified self-shrunken sequences can be generated from a generalized self-shrinking generator. Then, an in-depth analysis of randomness focused on the generalized sequences by means of complete and powerful batteries of statistical tests and graphical tools is done, providing a useful vision of the behaviour of these sequences and proving that they are suitable to be used in cryptography.

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19

Song, Falun, Fei Li, Beizhen Zhang, Mingdong Zhu, Chunxia Li, Ganping Wang, Haitao Gong, Yanqing Gan, and Xiao Jin. "Recent advances in compact repetitive high-power Marx generators." Laser and Particle Beams 37, no. 01 (March 2019): 110–21. http://dx.doi.org/10.1017/s0263034619000272.

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AbstractThis paper introduces recent activities on Marx-based compact repetitive pulsed power generators at the Institute of Applied Electronics (IAE), China Academy of Engineering Physics (CAEP), over the period 2010–2018. A characteristic feature of the generators described is the use of a simplified bipolar charged Marx circuit, in which the normal isolation resistors or inductors to ground are removed to make the circuit simpler. Several pulse-forming modules developed to generate a 100 ns square wave output are introduced, including thin-film dielectric lines of different structures, a pulse-forming line based on a Printed Circuit Board, and non-uniform pulse-forming networks. A compact repetitive three-electrode spark gap switch with low-jitter, high-voltage, and high-current was developed and is used in the generators. A positive and negative series resonant constant current power supply with high precision and high power is introduced. As an important part of the repetitive pulse power generator, a lower jitter pulse trigger source is introduced. Several typical high-power repetitive pulsed power generators developed at IAE are introduced including a 30 GW low-impedance Marx generator, a compact square-wave pulse generator based on Kapton-film dielectric Blumlein line, a 20 GW high pulse-energy repetitive PFN-Marx generator, and a coaxial Marx generator based on ceramic capacitors. The research of key technologies and their development status are discussed, which can provide a reference for the future development and application of miniaturization of compact and repetitive Marx generators.

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20

Yang, Wenrong, Yao Zhai, and Xiaorui Yang. "Research on the low-frequency pressure generator based on magnetic fluid." International Journal of Modern Physics B 33, no. 16 (June 30, 2019): 1950173. http://dx.doi.org/10.1142/s021797921950173x.

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To solve the problems that the existing pressure generators require high mechanical excitation frequency, need large manufacturing cost and are hard to control, a kind of pressure generator with low-frequency based on magnetic fluid is proposed in this paper. Magnetic fluid possesses the advantages of both magnetism of solid magnetic material and fluidity of liquid. The first-order buoyancy of magnetic fluid changes with low frequency alternating magnetic field. Based on this, the superimposed magnetic field is generated by electrifying the conical solenoid coil connected with the long solenoid coil with magnetic core in parallel. Magnetic field and magnetic force in the model are analyzed, then the relationship between input current and output pressure is calculated. In addition, the experimental platform is built and the performance of the device is tested. The result shows that the pressure generator can produce the corresponding pressure signal according to the input current.

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21

Apdilah, D., M. K. Harahap, N. Khairina, A. M. Husein, and M. Harahap. "A Comparison of One Time Pad Random Key Generation using Linear Congruential Generator and Quadratic Congruential Generator." Journal of Physics: Conference Series 1007 (April 2018): 012006. http://dx.doi.org/10.1088/1742-6596/1007/1/012006.

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22

Stanley, Alphyn, and R. K. Sharma. "Very Large Scale Integrated-Circuit Architecture for Offset Quadrature Phase Shift Keying Modulation Using Offset Generator." Sensor Letters 17, no. 11 (November 1, 2019): 884–87. http://dx.doi.org/10.1166/sl.2019.4142.

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This work presents an architecture for Offset Quadrature Phase Shift Keying (OQPSK) using an Offset generator. The Offset generator generates symbol patterns such that there is a maximum phase shift of ±90° only between the symbols, unlike the Quadrature Phase Shift Keying (QPSK) modulator which has a maximum of ±180° phase shift. Here the effort of designing an Offset generator, which can be embedded onto QPSK modulator to generate OQPSK with minimum combinational logic, has been discussed. Whenever the input symbols to the Offset generator varies in phase with a ±180° in constellation, it generates an intermediate symbol which differs only in ±90° with the previous one. Then it continues to give out the original symbol to be transmitted. This follows the exact OQPSK technology while it doesn't follow the conventional generation method of OQPSK modulation which provides an offset between the even and odd bit patterns of the symbols to be transmitted. The architecture is modelled using Verilog HDL and the functionality is validated from the simulation result.

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23

Imamah, A. Djunaidy, A. Rachmad, and F. Damayanti. "Comparasion of Password Generator between Coupled Linear Congruential Generator (CLCG) and Linear Congruential Generator (LCG)." Journal of Physics: Conference Series 953 (January 2018): 012136. http://dx.doi.org/10.1088/1742-6596/953/1/012136.

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24

CHOI, CHUL-WOO, and RICHARD J. GONSALVES. "FEYNCHOIS: A FEYNMAN DIAGRAM GENERATOR." International Journal of Modern Physics E 17, no. 05 (May 2008): 940–64. http://dx.doi.org/10.1142/s0218301308010283.

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A Feynman diagram generator, named FeynChois, is described. It provides the user with a full GUI (Graphical User Interface) environment which enables the generation diagrams automatically with several mouse operations. The diagram generator is built on an Application Programming Interface (API) called ViewableBeans which provides a framework for programming graphically representable objects. We also present a means for describing Feynman rules in a computer friendly manner using the XML (Extensible Markup Language) format.

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25

Thanakittiviroon, Tharest, and Sompong Liangrocapart. "A computer-based physics laboratory apparatus: Signal generator software." American Journal of Physics 73, no. 9 (September 2005): 887–92. http://dx.doi.org/10.1119/1.1891169.

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26

Krinidis, S., and V. Chatzis. "A Skeleton Family Generator via Physics-Based Deformable Models." IEEE Transactions on Image Processing 18, no. 1 (January 2009): 1–11. http://dx.doi.org/10.1109/tip.2008.2007351.

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27

Iaselli, G. "A fast Monte Carlo event generator for particle physics." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 248, no. 2-3 (August 1986): 488–90. http://dx.doi.org/10.1016/0168-9002(86)91037-5.

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28

Su, Jianjun, Wenbo Li, Hengjie Liu, Fanmin Meng, Long Wang, and Xueshan Han. "Application of Virtual Synchronous Generator in Solar Power Generation." Journal of Physics: Conference Series 1087 (September 2018): 062060. http://dx.doi.org/10.1088/1742-6596/1087/6/062060.

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29

He, Jiabei, Yuzheng Nie, and Ziwen Mao. "Analysis of Image Generation by different Generator in GANs." Journal of Physics: Conference Series 1903, no. 1 (April 1, 2021): 012061. http://dx.doi.org/10.1088/1742-6596/1903/1/012061.

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30

Ruiz-Ortega, Pablo, Miguel Olivares-Robles, and Olao Enciso-Montes de Oca. "Segmented Thermoelectric Generator under Variable Pulsed Heat Input Power." Entropy 21, no. 10 (September 24, 2019): 929. http://dx.doi.org/10.3390/e21100929.

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In this paper, we consider the transient state behavior of a segmented thermoelectric generator (STEG) exposed to a variable heat input power on the hot side while the transfer of heat on the cold side is by natural convection. Numerical analysis is used to calculate the power generation of the system. A one-dimensional STEG model, which includes Joule heating, the Peltier effect with constant properties of materials, is considered and governing equations are solved using the finite differences method. The transient analysis of this model is typical for energy harvesting applications. A novel design methodology, formulated on the ratio of the figure of merit of the thermoelectric materials, is developed including segmentation on the legs of the thermoelectric generator, which does not consider previous studies. In our approach, the figure of merit is an advantageous parameter to analyze its impact on thermal and electrical efficiency. The transient state of the thermoelectric generator is analyzed, considering two and three heat input sources. We obtain the temperature profiles, voltage generation, and efficiency of the STEG under pulsed heat input power. The results showed that the temperature drop along the semiconductor elements was more considerable when three pulses were applied, and when the thermal conductivity in the first segment was higher than that of the second segment. Furthermore, we show that the generated voltage and the maximum efficiency in the system occur when the value of the figure of merit in the first segment, which is in contact with the temperature source, is lower than the figure of merit for the second thermoelectric segment of the leg. The model investigated in this paper offers an essential guide on the thermal and electrical performance behavior of the system under transient conditions, which are present in many variable thermal phenomena such as solar radiation and the normalized driving cycles of an automotive thermoelectric generator.

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31

Gordeev, Yu N., V. A. Ogurechnikov, and Yu L. Chizhov. "Plasmadynamic ozone generator." Technical Physics Letters 35, no. 10 (October 2009): 920–21. http://dx.doi.org/10.1134/s1063785009100137.

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32

Woo, Byung Chul, and Hee Woong Lee. "Relation Between Electric Power and Temperature Difference for Thermoelectric Generator." International Journal of Modern Physics B 17, no. 08n09 (April 10, 2003): 1421–26. http://dx.doi.org/10.1142/s0217979203019095.

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The thermoelectric generation is the direct energy conversion method from heat to electric power. The conversion method is a very useful utilization of waste energy because of its possibility using a thermal energy below 423K. This research objective is to establish the thermoelectric technology on an optimum system design method and efficiency, and cost effective thermoelectric element in order to extract the maximum electric power from a wasted hot water. This paper is considered in manufacturing a thermoelectric generator and manufacturing of thermoelectric generator with 32 thermoelectric modules. It was also found that the electric voltage of thermoelectric generator with 32 modules slowly changed along temperature differences and the maximum power of thermoelectric generator using thermoelectric generating modules can be defined as temperature function.

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33

Hadas, Zdenek, Vladislav Singule, and Cestmir Ondrusek. "Optimal Design of Vibration Power Generator for Low Frequency." Solid State Phenomena 147-149 (January 2009): 426–31. http://dx.doi.org/10.4028/www.scientific.net/ssp.147-149.426.

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This paper deals with an optimal design of an electromagnetic energy harvesting generator for supplying wireless sensors with energy. The developed device is complex mechatronic system which generates an electrical power from an ambient low frequency mechanical vibration by use of a suitable electromagnetic generator. This device is excited by ambient mechanical vibration and electrical energy is harvested due to Faraday’s law. The design of this vibration power generator results from development cycles and the final generator can provide sufficient electrical energy for wireless sensors. The vibration power generator is tuned up to frequency of vibration 17 Hz and harvested output power depends non-linearly on level of vibration. The vibration power generator operates in level of vibration 0.1 – 1 G peak and output power is in range 2 – 25 mW.

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34

Gallagher, Hugh, Dave Casper, Yoshinari Hayato, and Paola Sala. "Event Generator Comparisons." Nuclear Physics B - Proceedings Supplements 139 (February 2005): 278–85. http://dx.doi.org/10.1016/j.nuclphysbps.2004.11.234.

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35

Bartalini, Paolo. "LCG Generator Services." Nuclear Physics B - Proceedings Supplements 156, no. 1 (June 2006): 257–60. http://dx.doi.org/10.1016/j.nuclphysbps.2006.02.123.

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36

Lee, Kyungroul, and Manhee Lee. "True Random Number Generator (TRNG) Utilizing FM Radio Signals for Mobile and Embedded Devices in Multi-Access Edge Computing." Sensors 19, no. 19 (September 24, 2019): 4130. http://dx.doi.org/10.3390/s19194130.

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As transmissions of data between mobile and embedded devices in multi-access edge computing (MEC) increase, data must be protected, ensuring confidentiality and integrity. These issues are usually solved with cryptographic algorithms systems, which utilize a random number generator to create seeds and keys randomly. Their role in cryptography is so important that they need to be generated securely. In this paper, a true random number generator (TRNG) utilizing FM radio signals as a source is proposed. The proposed method can generate random numbers with high entropy, increased by at least 118% and up to 431% compared to existing generators.

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37

Fukushima, Yasuyuki, Takeo Watanabe, Ryuji Ohnishi, Hideaki Shiotani, Shota Suzuki, Masamichi Hayakawa, Yusuke Endo, Tomotaka Yamanaka, Shinichi Yusa, and Hiroo Kinoshita. "Optimization of Photoacid Generator in Photoacid Generation-Bonded Resist." Japanese Journal of Applied Physics 47, no. 8 (August 8, 2008): 6293–96. http://dx.doi.org/10.1143/jjap.47.6293.

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38

Nowak, J. A. "Wrocław neutrino event generator." Physica Scripta T127 (September 1, 2006): 70–72. http://dx.doi.org/10.1088/0031-8949/2006/t127/025.

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39

Vaviļina, E., and G. Gaigals. "Highly Reconfigurable Beamformer Stimulus Generator." Latvian Journal of Physics and Technical Sciences 55, no. 1 (February 1, 2018): 53–63. http://dx.doi.org/10.2478/lpts-2018-0006.

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Abstract The present paper proposes a highly reconfigurable beamformer stimulus generator of radar antenna array, which includes three main blocks: settings of antenna array, settings of objects (signal sources) and a beamforming simulator. Following from the configuration of antenna array and object settings, different stimulus can be generated as the input signal for a beamformer. This stimulus generator is developed under a greater concept with two utterly independent paths where one is the stimulus generator and the other is the hardware beamformer. Both paths can be complemented in final and in intermediate steps as well to check and improve system performance. This way the technology development process is promoted by making each of the future hardware steps more substantive. Stimulus generator configuration capabilities and test results are presented proving the application of the stimulus generator for FPGA based beamforming unit development and tuning as an alternative to an actual antenna system.

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40

Liu, Sheng, Jian-Cang Su, Xibo Zhang, Ya-Feng Pan, Hong-Yan Fan, and Xu-Liang Fan. "A Tesla-type long-pulse generator with wide flat-top width based on a double-width pulse-forming line." Laser and Particle Beams 36, no. 1 (March 2018): 115–20. http://dx.doi.org/10.1017/s0263034618000034.

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AbstractTo produce pulses with good flat-top quality, pulse-forming lines (PFLs) have been widely used in the field of Tesla-type pulse generators. To shorten the physical length of the PFL, a double-width PFL (DWPFL) is proposed that doubles the output pulse width while maintaining flat-top quality. A repetitively 10 GW Tesla-type long-pulse generator producing pulses with flat-top width of about 110 ns was developed with a coaxial DWPFL to produce high-current electron beams. Electron beams of about 10 GW with flat-top widths of about 110 ns were obtained on a planar vacuum diode load. With this pulse generator and a C-band high-power microwave system, microwaves of ~2.2 GW power and full-width at half-maximum of 101 ns were generated. The experiment demonstrates the feasibility and ideal output waveform quality of the DWPFL.

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41

Thompson, F. "The thermoelectric generator." Physics Education 38, no. 6 (November 1, 2003): 478–80. http://dx.doi.org/10.1088/0031-9120/38/6/f03.

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Efimov, A. A., V. V. Ivanov, A. V. Bagazeev, I. V. Beketov, I. A. Volkov, and S. V. Shcherbinin. "Generation of aerosol nanoparticles by the multi-spark discharge generator." Technical Physics Letters 39, no. 12 (December 2013): 1053–56. http://dx.doi.org/10.1134/s1063785013120067.

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Rahman, Ataur, Kyaw Myo Aung, Khalid Saifullah, and Mizanur Rahman. "Physics of ZnO/SiO2 electrolyte semi-conductive thermal electric generator." International Journal of ADVANCED AND APPLIED SCIENCES 4, no. 5 (May 2017): 35–40. http://dx.doi.org/10.21833/ijaas.2017.05.006.

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Kawabata, S. "A new Monte Carlo event generator for high energy physics." Computer Physics Communications 41, no. 1 (July 1986): 127–53. http://dx.doi.org/10.1016/0010-4655(86)90025-1.

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Sentkerestiová, J., O. Dragoun, O. Lebeda, M. Ryšavý, M. Sturm, and D. Vénos. "Gaseous83mKr generator for KATRIN." Journal of Instrumentation 13, no. 04 (April 16, 2018): P04018. http://dx.doi.org/10.1088/1748-0221/13/04/p04018.

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Liang-Rui Chen and Neng-Yi Chu. "AC-Powered Pulse Generator." IEEE Transactions on Plasma Science 34, no. 5 (October 2006): 1858–65. http://dx.doi.org/10.1109/tps.2006.883420.

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Catalan, Leyre, Miguel Araiz, Patricia Aranguren, German D. Padilla, Pedro A. Hernandez, Nemesio M. Perez, Celestino Garcia de la Noceda, Jose F. Albert, and David Astrain. "Prospects of Autonomous Volcanic Monitoring Stations: Experimental Investigation on Thermoelectric Generation from Fumaroles." Sensors 20, no. 12 (June 23, 2020): 3547. http://dx.doi.org/10.3390/s20123547.

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Fumaroles represent evidence of volcanic activity, emitting steam and volcanic gases at temperatures between 70 and 100 ∘ C . Due to the well-known advantages of thermoelectricity, such as reliability, reduced maintenance and scalability, the present paper studies the possibilities of thermoelectric generators, devices based on solid-state physics, to directly convert fumaroles heat into electricity due to the Seebeck effect. For this purpose, a thermoelectric generator composed of two bismuth-telluride thermoelectric modules and heat pipes as heat exchangers was installed, for the first time, at Teide volcano (Canary Islands, Spain), where fumaroles arise in the surface at 82 ∘ C . The installed thermoelectric generator has demonstrated the feasibility of the proposed solution, leading to a compact generator with no moving parts that produces a net generation between 0.32 and 0.33 W per module given a temperature difference between the heat reservoirs encompassed in the 69–86 ∘ C range. These results become interesting due to the possibilities of supplying power to the volcanic monitoring stations that measure the precursors of volcanic eruptions, making them completely autonomous. Nonetheless, in order to achieve this objective, corrosion prevention measures must be taken because the hydrogen sulfide contained in the fumaroles reacts with steam, forming sulfuric acid.

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Bellarbi, Samir. "Electromechanical Study the Wind Energy Conversion System Based DFIG and SCIG Generators." International Journal of Mechanics 15 (July 14, 2021): 102–6. http://dx.doi.org/10.46300/9104.2021.15.11.

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Generally speaking, asynchronous generators are used more frequently in medium power in wind energy conversion systems WECS applications. Depending on the power electronics converter used in the specific application, the operation of the asynchronous machine can be controlled in nested speed torque loops, using different torque control algorithms. Because WECS are highly nonlinear systems, but with smooth nonlinearities, a possible optimal control design solution can be the maximum power point tracking MPPT in this paper. This research describes a comparison of the power quality for wind power systems based on two generators: the squirrel-cage induction generator (SCIG), the doubly fed induction generator (DFIG). At first, we simulated SCIG and DFIG in MATLAB/Simulink and investigates the impact of this generators on the power system stability for compare the results and to comment on the best option based on the output characteristics of the generator and wind turbine. The technical objective of this research is to choose the most suitable generator adaptive with changing wind speeds and the most energy production

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Meng, Qian, Li-Ta Hsu, Bing Xu, Xiapu Luo, and Ahmed El-Mowafy. "A GPS Spoofing Generator Using an Open Sourced Vector Tracking-Based Receiver." Sensors 19, no. 18 (September 16, 2019): 3993. http://dx.doi.org/10.3390/s19183993.

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Spoofing can seriously threaten the use of the Global Positioning System (GPS) in critical applications such as positioning and navigation of autonomous vehicles. Research into spoofing generation will contribute to assessment of the threat of possible spoofing attacks and help in the development of anti-spoofing methods. However, the recent commercial off-the-shelf (COTS) spoofing generators are expensive and the technology implementation is complicated. To address the above problem and promote the GPS safety-critical applications, a spoofing generator using a vector tracking-based software-defined receiver is proposed in this contribution. The spoofing generator aims to modify the raw signals by cancelling the actual signal component and adding the spoofing signal component. The connections between the spreading code and carrier, and the states of the victim receiver are established through vector tracking. The actual signal can be predicted effectively, and the spoofing signal will be generated with the spoofing trajectory at the same time. The experimental test results show that the spoofing attack signal can effectively mislead the victim receiver to the designed trajectory. Neither the tracking channels nor the positioning observations have abnormal changes during this processing period. The recent anti-spoofing methods cannot detect this internal spoofing easily. The proposed spoofing generator can cover all open-sky satellites with a high quality of concealment. With the superiority of programmability and diversity, it is believed that the proposed method based on an open source software-defined receiver has a great value for anti-spoofing research of different GNSS signals.

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Acharya, S., R. G. Hibbs, Y. Chen, and D. E. Nikitopoulos. "Mass/Heat Transfer in a Ribbed Passage With Cylindrical Vortex Generators: The Effect of Generator-Rib Spacing." Journal of Heat Transfer 122, no. 4 (April 13, 1999): 641–52. http://dx.doi.org/10.1115/1.1288026.

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The effect of vortex generators on the heat transfer from internally ribbed passages is studied experimentally using a mass transfer technique. Cylindrical vortex generators placed directly above the ribs have been used in this study. Results are reported on the effect of the spacing between the vortex generator and the ribs. Detailed distributions of the Sherwood number contours and the centerline Sherwood number distributions are presented. Reynolds number values of 5000, 10,000, and 30,000 are studied and three generator-rib-spacing/rib-height (s/e) values of 0.55, 1, and 1.5 are considered. It is shown that at small generator-rib spacings (s/e=0.55), the two act as a single element, and lead to a retardation of the shear layer development past the reattachment point. This is generally associated with lower heat transfer. At a larger generator-rib spacing (s/e=1.5), the generator wake and the rib shear layer interact with each other to promote mixing and heat transfer. [S0022-1481(00)02103-4]

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