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Journal articles on the topic 'Power cone'

Author: Grafiati

Published: 6 September 2023

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1

Viswanath, G., and T. V. Sreenivas. "Cone-kernel representation versus instantaneous power spectrum." IEEE Transactions on Signal Processing 47, no. 1 (1999): 250–54. http://dx.doi.org/10.1109/78.738265.

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2

Soni, R. K., V. K. Mandloie, M. B. Pote, and A. K. Nath. "Spinning cone water film power meter for high-power CO2 lasers." Optics & Laser Technology 39, no. 1 (2007): 196–201. http://dx.doi.org/10.1016/j.optlastec.2005.03.003.

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3

Kyrala, G. A., A. Seifter, J. L. Kline, S. R. Goldman, S. H. Batha, and N. M. Hoffman. "Tuning indirect-drive implosions using cone power balance." Physics of Plasmas 18, no. 7 (2011): 072703. http://dx.doi.org/10.1063/1.3598179.

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4

Hien, Le Thi Khanh. "Differential properties of Euclidean projection onto power cone." Mathematical Methods of Operations Research 82, no. 3 (2015): 265–84. http://dx.doi.org/10.1007/s00186-015-0514-0.

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5

Kim, Sungjun, Sunghun Jung, Min-Hwi Kim, et al. "Nano-cone resistive memory for ultralow power operation." Nanotechnology 28, no. 12 (2017): 125207. http://dx.doi.org/10.1088/1361-6528/aa5e72.

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6

Murmu, Chandra Shekhar, Suman Majumdar, and Kanan K. Datta. "C ii and H i 21-cm line intensity mapping from the EoR: impact of the light-cone effect on auto and cross-power spectra." Monthly Notices of the Royal Astronomical Society 507, no. 2 (2021): 2500–2509. http://dx.doi.org/10.1093/mnras/stab2347.

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ABSTRACT C ii line intensity mapping (LIM) is a potential technique to probe the early galaxies from the Epoch of Reionization (EoR). Several experiments e.g. CONCERTO, TIME, CCAT-p are underway to map the C ii LIM signal fluctuations from the EoR, enabling us to estimate the C ii power-spectrum and C ii × 21-cm cross-power spectrum. The observed LIM signal will have its time evolution embedded in it along the line of sight due to the finite traveltime of the signal from its origin to the observer. We have investigated this so-called light-cone effect on the observed statistics of our seminume

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Dhurandhar, Akshay S., and Amarsingh B. Kanase-Patil. "Experimental Study on Effect of Water Spray Characteristics on Performance of Cooling Tower." E3S Web of Conferences 170 (2020): 01009. http://dx.doi.org/10.1051/e3sconf/202017001009.

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Cooling tower is an indispensable part, used as a direct contact type heat exchanger mainly for evaporative cooling. Cooling tower generally dissipates, remove heat from thermal power plants. In an induced draft cooling tower of counter flow, used for a mini-steam power plant, hot water enters at the top, while the air is introduced at the bottom and exits at the top, air is allowed to come in contact with falling water droplets, causing evaporative cooling. A possibility of desired change with different spray angle, patterns, is tried and analysed. On findings, best suited spray nozzle angle

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8

Pratiwi, Febrianti Zarra, Hari Setijono, and Yusuf Fuad. "Effect of Plyometric Front Cone Hops Training and Counter Movement Jump Training to Power and Strenght of Leg Muscles." Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 4, no. 1 (2018): 105. http://dx.doi.org/10.29407/js_unpgri.v4i1.12073.

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The purpose of this research is to increase performance athletes bolavoli and that basketball with the methods exercise plyometric front cone hops and plyometric counter movement jump. Thirty students who elected in accordance criteria will be conducted pretest to determine division of a group plyometric front cone hops, plyometric counter movement jump or the control group. Back leg dynamometer to measure the muscle power limbs and jump md to measure the power limb muscles.Will be given exercise for 6 weeks to masing-masing groups and treatment 3 times a week. Test results paired sample t-tes

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9

TANAKA, Hirohisa. "Power transmission of a cone roller toroidal traction drive." JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry 32, no. 1 (1989): 82–90. http://dx.doi.org/10.1299/jsmec1988.32.82.

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10

NAKANO, Keiichi, Yoshikazu TANAKA, Takashi MATSUOKA, Kazuhiko SAKAGUCHI, and Kikuo OKAMURA. "Power Transfer Characteristic of Ring-Cone 3K Type CVT." Transactions of the Japan Society of Mechanical Engineers Series C 72, no. 714 (2006): 628–35. http://dx.doi.org/10.1299/kikaic.72.628.

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11

Chaturani, P., and S. Narasimman. "Flow of power-law fluids in cone-plate viscometer." Acta Mechanica 82, no. 3-4 (1990): 197–211. http://dx.doi.org/10.1007/bf01173628.

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12

Liang, Anhui, Kexin Yu, Xiaolin Min, et al. "The Explanation of Photopic Luminous Efficiency Curve by Using Both of the Cones’ Optical Fiber Coupling Effects and the Absorption of L Cones." Sensors 23, no. 3 (2023): 1523. http://dx.doi.org/10.3390/s23031523.

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In this paper, we build four-part cone models to explore the coupling effect of seven cone fiber couplers. Moreover, this is the first study of the coupling effect of four layers of biological couplers in animals and other biological lives. We simulate the four layers cone couplers by using the beam propagation method, and we assume the input beam is located at the outer fiber of the central cone. Our simulation results showed that there are two wavelength regions (short and long wavelength regions) with the strongest coupling, where the most power of input optical powers of the central cones

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13

Takamure, Kotaro, Tomomi Uchiyama, Kosuke Horie, and Hiroshi Nakayama. "Effect of cone on efficiency improvement of a self-powered IoT-based hydro turbine." Advances in Mechanical Engineering 14, no. 7 (2022): 168781322211072. http://dx.doi.org/10.1177/16878132221107249.

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This study aims to improve the power generation performance of the self-powered IoT turbine flowmeter developed in our previous study. To achieve this, a cone was installed at the front-center of the rotor to accelerate the water flow and streamline the resulting high-speed flow toward the blade near the periphery of the rotor. The experiments and flow simulations served to explore the effects of the cone on the characteristics of the flowmeter. The results demonstrate that both the power generated by the cone-equipped rotor and the pressure loss increases with increasing cone diameter [Formul

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14

Sakharov, D. F., and А. V. Vitushkin. "POWER ANALYSIS OF THE CRUSHING PROCESS IN A CONE CRUSHER." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 61, no. 12 (2019): 980–86. http://dx.doi.org/10.17073/0368-0797-2018-12-980-986.

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The literature devoted to cone crushers design and research of its crushing process is generally based on empirical observations, therefore it is commonly considered that material is crushed under the influence of squeezing forces exclusively. Above mentioned liter ature, in turn, theoretical base forms for crushing units design. Based on common understanding, variety of designs of cone crushing machines existing today is characterized by integrity of principles of their work. Majority of theoretical works devoted to cone crushers are focused on such characteristics as efficiency, extent of cr

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15

Cheng, Jiayuan, Tingzhi Ren, Zilong Zhang, Xin Jin, and Dawei Liu. "Influence of Two Mass Variables on Inertia Cone Crusher Performance and Optimization of Dynamic Balance." Minerals 11, no. 2 (2021): 163. http://dx.doi.org/10.3390/min11020163.

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Inertia cone crushers are widely used in complex ore mineral processing. The two mass variables (fixed cone mass and moving cone mass) affect the dynamic performance of the inertia cone crusher. Particularly the operative crushing force of the moving cone and the amplitude of the fixed cone are affected, and thus the energy consumption of the crusher. In this paper, the process of crushing steel slag is taken as a specific research object, to analyze the influence of two mass variables on the inertia cone crusher performance. A real-time dynamic model based on the multi-body dynamic (MBD) and

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16

Lin, Nan Ming, Shih Chang Shei, Shoou Jinn Chang, et al. "Gan-Based Leds Grown on Cone-Shaped Patterned Sapphire Substrates with Peripheral Air Voids by Lateral Etching." Advanced Materials Research 422 (December 2011): 542–46. http://dx.doi.org/10.4028/www.scientific.net/amr.422.542.

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In this study, the authors report that GaN-based LEDs prepared on 1.2μm, 1.4μm, and 1.7μm height of cone-shaped patterned sapphire substrates (CSPSS) with the formation of air voids at GaN/cone-shaped-patterned-sapphire-substrate interface by laser scribing and lateral etching with one-step MOCVD growth. With CSPSS, it can be seen that output powers were all significantly larger than that of LED with flat substrate (FS). Assisted by 20 min lateral etching, it was found that peripheral pyramid-like air-voids were formed on top of each cone of the CSPSS with 1.7μm height and the light output pow

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17

Liu, Xi, Qing-Hai Wang, and Jiangbin Gong. "On the Quantization of AB Phase in Nonlinear Systems." Entropy 24, no. 12 (2022): 1835. http://dx.doi.org/10.3390/e24121835.

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Self-intersecting energy band structures in momentum space can be induced by nonlinearity at the mean-field level, with the so-called nonlinear Dirac cones as one intriguing consequence. Using the Qi-Wu-Zhang model plus power law nonlinearity, we systematically study in this paper the Aharonov–Bohm (AB) phase associated with an adiabatic process in the momentum space, with two adiabatic paths circling around one nonlinear Dirac cone. Interestingly, for and only for Kerr nonlinearity, the AB phase experiences a jump of π at the critical nonlinearity at which the Dirac cone appears and disappear

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18

Sakharov, D. F., and A. V. Vitushkin. "Energy efficiency of a cone crusher with stops." Izvestiya. Ferrous Metallurgy 65, no. 10 (2022): 733–39. http://dx.doi.org/10.17073/0368-0797-2022-10-733-739.

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Metallurgical, construction and mining industries are based on the process of grinding various materials. The main method of primary preparation of raw materials is crushing of the extracted ore. Up to 4 % of the world’s electricity production is spent annually on crushing rocks to obtain the necessary fraction of material, and for a single mine, the share of energy consumption for crushing can reach 50 % of the annual volume. In addition to spending electricity directly on rocks destruction, some of it is spent on creating a power reserve for a crushing machine (hereinafter referred to as a c

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19

Yang, Chao Jie, Jie Chen, Zhi Song Xie, et al. "Optimizing Design of Accessories for High-Voltage XPLE Power Cables." Applied Mechanics and Materials 441 (December 2013): 189–94. http://dx.doi.org/10.4028/www.scientific.net/amm.441.189.

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This paper describes the optimization design of prefabricated XPLE cable accessories and presents the formula of the design of stress cone. The finite element method for optimizing the design of the electric stress distribution inside the HV power cable joint and adjusting the length and curvature of the stress cone of this termination is discussed. The relationships between dimensions of stress cones structure and the electric field distribution were obtained.

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20

Chen, Xiongwen, Qinfeng Guo, and Dale G. Brockway. "Power Laws in Cone Production of Longleaf Pine across Its Native Range in the United States." Sustainable Agriculture Research 6, no. 4 (2017): 64. http://dx.doi.org/10.5539/sar.v6n4p64.

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Longleaf pine (Pinus palustris Mill.) forests in the southeastern United States are considered endangered ecosystems, because of their dramatic decrease in area since European colonization and poor rates of recovery related to episodic natural regeneration. Sporadic seed production constrains restoration efforts and complicates sustainable management of this species. Previous studies of other tree species found invariant scaling properties in seed output. Here, using long-term monitoring data for cone production at seven sites across the native range of longleaf pine, we tested the possible pr

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21

Martínez Vivas, A. I., and T. Kim. "Dynamic Investigations between Two- and Three-bladed Wind Turbines with Various Yaw, Tilt and Cone Angles." Journal of Physics: Conference Series 2265, no. 3 (2022): 032051. http://dx.doi.org/10.1088/1742-6596/2265/3/032051.

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Abstract Tilt and cone are included in wind turbine design to increase tower clearance. Yaw misalignments take place often during turbine operation. The combined effects of these parameters modify the relative wind speed experienced by wind turbine blades, thereby altering the turbine’s dynamics. Consequently, power and loads, key design considerations, are affected. In the absence of exhaustive research available on this topic, this paper provides a quantitative analysis on the impact of tilt, cone and yaw on power and loads. The DTU 10MW Reference Wind Turbine and its two-bladed equivalent a

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22

Gao, Hong, and Zhiheng Wang. "Hydrodynamic Response Analysis and Wave Energy Absorption of Wave Energy Converters in Regular Waves." Marine Technology Society Journal 51, no. 1 (2017): 64–74. http://dx.doi.org/10.4031/mtsj.51.1.7.

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AbstractThe hydrodynamic response and the energy capture analysis of wave energy converters (WECs) with three degrees of freedom are conducted using a frequency domain approach. Considering the coupled hydrodynamic coefficients between surge and pitch, motion responses in surge, heave, and pitch are solved for the WECs. The power take-off (PTO) damping is taken as a linear function of the velocity. The power absorption and the absorption efficiency in surge, heave, and pitch are analyzed and compared. The effects of the geometry, diameter, draft, center of gravity position, and PTO damping on

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23

Wu, Shao Hua, Shi Hong Shi, Jun Yan Xiao, and Ge Yan Fu. "Study on Characteristics of Inner Ring Laser Powder Feed Molten Pool of Thin Workpiece." Applied Mechanics and Materials 43 (December 2010): 565–68. http://dx.doi.org/10.4028/www.scientific.net/amm.43.565.

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In order to obtain the characteristic parameters of molten pool and realize real-time control of laser power, a high-speed CCD is used to monitor the laser rapid forming process of thin-walled rotating hollow cone, which is based on the technology of "hollow beam, powder tube center, inside-beam powder feeding".Experiments show that: In the plateau stage, pool area changes in 0.25mm2-0.7mm2, laser power remains at about 1kw, formed parts achieves maximum height of 55mm.

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24

Balmain, K. G., A. A. E. Luttgen, and P. C. Kremer. "Power flow for resonance cone phenomena in planar anisotropic metamaterials." IEEE Transactions on Antennas and Propagation 51, no. 10 (2003): 2612–18. http://dx.doi.org/10.1109/tap.2003.817542.

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25

Shintake, T. "Nose-cone removed pillbox cavity for high power klystron amplifiers." IEEE Transactions on Electron Devices 38, no. 4 (1991): 917–23. http://dx.doi.org/10.1109/16.75224.

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26

Gröndahl, Albin, Gauti Asbjörnsson, Erik Hulthén, and Magnus Evertsson. "Diagnostics of cone crusher feed segregation using power draw measurements." Minerals Engineering 127 (October 2018): 15–21. http://dx.doi.org/10.1016/j.mineng.2018.07.008.

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27

Datta, Kanan K., Garrelt Mellema, Yi Mao, Ilian T. Iliev, Paul R. Shapiro, and Kyungjin Ahn. "Light-cone effect on the reionization 21-cm power spectrum." Monthly Notices of the Royal Astronomical Society 424, no. 3 (2012): 1877–91. http://dx.doi.org/10.1111/j.1365-2966.2012.21293.x.

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28

Bearman, R. A., R. W. Barley, and A. Hitchcock. "Prediction of power consumption and product size in cone crushing." Minerals Engineering 4, no. 12 (1991): 1243–56. http://dx.doi.org/10.1016/0892-6875(91)90170-z.

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29

Garrioch, S. H., and D. F. James. "A Finite-Element Study of Newtonian and Power-Law Fluids in Conical Channel Flow." Journal of Fluids Engineering 119, no. 2 (1997): 341–46. http://dx.doi.org/10.1115/1.2819139.

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A numerical study of Newtonian and shear-thinning fluids in high-speed, laminar flow through a conical channel is presented. Using a variety of cone-angles and Reynolds numbers on the order of 100, converging flow is mapped according to several characteristics: the angle at which separation occurs at the cone outlet, the extent to which sink-flow is approximated, and the pressure drop through the cone. While the data provides a fundamental description of conical flow, it may be of particular usefulness to rheologists in establishing an inelastic baseline for a converging-flow rheometer.

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30

Chen, Lin, Wen Bing Yu, Wei Bo Liu, and Xin Yi. "Numerical Simulation of Pile Foundations of Qinghai-Tibet Power Transmission Line: Influence of Temperature Region." Applied Mechanics and Materials 501-504 (January 2014): 218–23. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.218.

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To analyze the thermal effect of the pile foundation of permafrost, a two-dimensional transient finite element model of the thermal fields with phase change were established. The developments of heat influence limit and maximum thawed depth with and without climate warming were predicted and analyzed. Results indicate that (1) the heat influence limit and maximum thaw depth in permafrost regions enlarge with time elapse, while the global climate warming will have a greater influence to full-space pile foundation compared with the cone-cylinder pile foundation; (2) Considering the global climat

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31

Babu, G. V. R., and G. N. Alemayehu. "Fixed points of nodal contractions in cone metric spaces." Tamkang Journal of Mathematics 42, no. 1 (2011): 39–51. http://dx.doi.org/10.5556/j.tkjm.42.2011.595.

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We introduce local power contractions and nodal contractions in cone metric spaces and prove the existence of fixed points of such contractions in cone metric spaces. Our theorems generalize the results of Haung and Zhang [L-G. Haung, X. Zhang, Cone metric spaces and fixed point theorems of contractive mappings, J. Math. Anal. Appl. 332 (2007) 1468-1476].

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32

MA, BO-QIANG, and JI SUN. "NEW SCALING VARIABLE FROM LIGHT-CONE PERTURBATION THEORY." International Journal of Modern Physics A 06, no. 03 (1991): 345–63. http://dx.doi.org/10.1142/s0217751x91000216.

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We argue from both the quark language and the free field light-cone expansion in light-cone perturbation theory that the constraint of overall “energy” conservation in deep inelastic lepton-nucleon scattering yields a similar new scaling variable xp, which reduces to the Weizmann variable, the Bloom-Gilman variable and the Bjorken variable at some approximations. The xp rescaling is expected to be a good scaling variable, and hence gives strong power-law type corrections to the deviations of Bjorken scaling. An understanding of this xp rescaling from both the free field operator product expans

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33

Darusalam, Ucuk, Purnomo Sidi Priambodo, and Eko Tjipto Rahardjo. "Optical Spatial Filter to Suppress Beam Wander and Spatial Noise Induced by Atmospheric Turbulence in Free-Space Optical Communications." Advances in Optical Technologies 2015 (May 18, 2015): 1–6. http://dx.doi.org/10.1155/2015/594628.

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We propose an optical spatial filter (OSF) method to suppress beam wander and spatial noise effects. Signal from random displacements of the focus spot around the optical axis within the constricted area is collected. This method advantageously suppresses fluctuations in signal intensity. The OSF consists of a pinhole and cone reflector. The pinhole produces Fresnel diffraction on the focus spot. The cone reflector provides directed reflectance onto the pinhole for random focus spot displacements due to beam wander. The calculations of signal power are based on fluctuations of signal intensity

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34

Furqoni, Randi Sofyan, and Andun Sudijandoko. "The comparison of rope jump, cone step up, and diagonal to the power and agility." Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 5, no. 1 (2019): 140. http://dx.doi.org/10.29407/js_unpgri.v5i1.12842.

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This study aims: (1) to determine the effect of rope jump training on increasing leg muscle power and agility; (2) to determine the effect of step-up training on increasing leg muscle power and agility 3) to determine the effect of diagonal cone hops exercises on increasing leg muscle power and agility; and (4) to find out the differences in the effect of pliometric rope jump, step up, and diagonal cone hops exercises on increasing leg muscle power and agility. The sample of this study was 40 students of futsal extracurricular at Firdaus Jembrana High School. This type of research is quantitat

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35

Yamamoto, Ryo, Suguru Mototani, Kae Doki, and Akihiro Torii. "Transmission Characteristics of Wireless Power Transmission Using a Cone Spiral Coil." Journal of the Japan Society of Applied Electromagnetics and Mechanics 29, no. 2 (2021): 315–20. http://dx.doi.org/10.14243/jsaem.29.315.

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36

Hao, Zijun, Zhongping Wan, Xiaoni Chi, and Jiawei Chen. "A power penalty method for second-order cone nonlinear complementarity problems." Journal of Computational and Applied Mathematics 290 (December 2015): 136–49. http://dx.doi.org/10.1016/j.cam.2015.05.007.

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37

Hao, Zijun, Zhongping Wan, and Xiaoni Chi. "A power penalty method for second-order cone linear complementarity problems." Operations Research Letters 43, no. 2 (2015): 137–42. http://dx.doi.org/10.1016/j.orl.2014.12.012.

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38

Loker, William M. "Power in the Southern Cone Borderlands: An Anthropology of Development Practice." American Ethnologist 27, no. 4 (2000): 993–94. http://dx.doi.org/10.1525/ae.2000.27.4.993.

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39

Zhang, Fan, Zhuzheng Shen, Wen Xu, Guofeng Wang, and Biyi Yi. "Optimal Power Flow Algorithm Based on Second-Order Cone Relaxation Method for Electricity-Gas Integrated Energy Microgrid." Complexity 2021 (August 19, 2021): 1–11. http://dx.doi.org/10.1155/2021/2073332.

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Due to the existence of nonlinear constraints, it is difficult to solve the power flow directly. This paper proposes a microgrid optimal scheduling strategy using second-order cone relaxation method to realize linear transformation, so as to minimize the total cost of the microgrid. Firstly, a microgrid system model of electricity-gas integrated energy is established, and the nonlinear constraints of branch power flow are transformed by the second-order cone relaxation method. Then, based on the microgrid model, the application conditions of the second-order cone relaxation transformation meth

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40

Prakash, J., S. Gouse Mohiddin, and S. Vijaya Kumar Varma. "Free Convective MHD Flow Past a Vertical Cone with Variable Heat and Mass Flux." Journal of Fluids 2013 (November 18, 2013): 1–8. http://dx.doi.org/10.1155/2013/405985.

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A numerical study of buoyancy-driven unsteady natural convection boundary layer flow past a vertical cone embedded in a non-Darcian isotropic porous regime with transverse magnetic field applied normal to the surface is considered. The heat and mass flux at the surface of the cone is modeled as a power law according to qwx=xm and qw*(x)=xm, respectively, where x denotes the coordinate along the slant face of the cone. Both Darcian drag and Forchheimer quadratic porous impedance are incorporated into the two-dimensional viscous flow model. The transient boundary layer equations are then nondime

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41

Zhu, Wen Tao, Xu Liu, and Jing Bo Yang. "Joint Beamforming and Power Optimization with Per-Antenna Power Constraints in Cognitive MISO System." Applied Mechanics and Materials 742 (March 2015): 674–78. http://dx.doi.org/10.4028/www.scientific.net/amm.742.674.

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Joint Beamforming and power allocation schemes are considered for cognitive radio (CR) multiple input single output (MISO) system in this paper. We considered the robust downlink beamforming and power allocation problem with per-antenna power constraints which is more realistic in practice, instead of sum-power constraint, under the imperfect channel state information (CSI). Since the given optimization problem is a non-convex problem which is difficult to handle, we transformed it into second order cone program (SOCP) problem, which can be solved efficiently. Simulation shows that the propose

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42

Firmanto, Hendy, Edy Suharyanto, and Kuswanto. "Performance of Cooled Cone Grinding Machine in Cocoa Cake Processing." Pelita Perkebunan (a Coffee and Cocoa Research Journal) 31, no. 2 (2015): 119–29. http://dx.doi.org/10.22302/iccri.jur.pelitaperkebunan.v31i2.152.

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The process of cocoa paste pressing has a function to separate the fatty component of cocoa from its cake. Cocoa paste is further processed into cocoa powder using grinding machine for cocoa cake. The cooled cone type of cocoa grinding machine is used to solve the problem of plug in the maschine caused by melting of fat in cocoa cake due to hot effect as a result of friction in the grinding machine. Grinding machine of cocoa has conical form of cylinder for grinding and stator wall wrapped by source of cold and closed with jacket wool. Research was conducted at Kaliwining Experimental Garden o

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43

Kang, Peng, Wei Guo, Weigang Huang, et al. "Two-Stage Stochastic Programming Scheduling Model for Hybrid AC/DC Distribution Network Considering Converters and Energy Storage System." Applied Sciences 10, no. 1 (2019): 181. http://dx.doi.org/10.3390/app10010181.

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The development of DC distribution network technology has provided a more efficient way for renewable energy accommodation and flexible power supply. A two-stage stochastic scheduling model for the hybrid AC/DC distribution network is proposed to study the active-reactive power coordinated optimal dispatch. In this framework, the wind power scenario set is utilized to deal with its uncertainty in real time, which is integrated into the decision-making process at the first stage. The charging/discharging power of ESSs and the transferred active/reactive power by VSCs can be adjusted when wind p

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44

Al Baidani, Mashael, and Judi McDonald. "On the Block Structure and Frobenius Normal Form of Powers of Matrices." Electronic Journal of Linear Algebra 35 (February 1, 2019): 297–306. http://dx.doi.org/10.13001/1081-3810.3955.

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The Frobenius normal form of a matrix is an important tool in analyzing its properties. When a matrix is powered up, the Frobenius normal form of the original matrix and that of its powers need not be the same. In this article, conditions on a matrix $A$ and the power $q$ are provided so that for any invertible matrix $S$, if $S^{-1}A^qS$ is block upper triangular, then so is $S^{-1}AS$ when partitioned conformably. The result is established for general matrices over any field. It is also observed that the contributions of the index of cyclicity to the spectral properties of a matrix hold over

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45

Ding, Liangliang, Jingyuan Zhou, Wenhui Tang, and Xianwen Ran. "Damage Characteristics Analysis of the Truncated Cone-Shaped PELE Projectile." Symmetry 11, no. 8 (2019): 1025. http://dx.doi.org/10.3390/sym11081025.

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The PELE (penetrator with enhanced lateral efficiency) projectile is a new type of penetrator, which has both penetration and fragmentation effects. The damage characteristics of the PELE projectile have never been studied from the perspective of changing the shape of the projectile structure until now. This paper hopes to improve the damage power by changing the structural shape of PELE projectile, and the concept of a truncated cone-shaped PELE projectile is first put forward. In order to compare and analyze the damage power of the truncated cone-shaped PELE projectile and the conventional P

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KOMATSUBARA, Hidenori, Takayuki YAMAZAKI, and Sadatomo KURIBAYASHI. "5134 Research and Development of Cone to Cone Type CVT : 2^ report, Design and Power Transfer Efficiency of CTC-CVT." Proceedings of the JSME annual meeting 2006.4 (2006): 213–14. http://dx.doi.org/10.1299/jsmemecjo.2006.4.0_213.

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Seifu, Yared, Simie Tola, and Amana Wako. "Evaluation of Tractor Field Performance Using Visual Basics Programming for Agricultural Farm Lands." American Journal of Agricultural Science, Engineering, and Technology 7, no. 1 (2023): 53–59. http://dx.doi.org/10.54536/ajaset.v7i1.1132.

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The purpose of this research was to developed a program in visual basic software for predicting tractor implement performance of tractor implement combination. A conventional tillage system with a mounted mouldboard plough and three bottoms was used to collect data from a Chery tractor (Model RM750) with a four-wheel drive. The soil texture class were determined in laboratory. Soil cone index value was measured using a SpotOn digital compaction meter. The output of the visual basics simulation in this study was obtained by varying the depth of operation and soil cone index for an experimental

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Gouse, Mohiddin, Anwar Bég, and Vijaya Varma. "Numerical study of free convective MHD flow past a vertical cone in non-Darcian porous media." Theoretical and Applied Mechanics 41, no. 2 (2014): 119–40. http://dx.doi.org/10.2298/tam1402119g.

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A numerical study of buoyancy-driven unsteady natural convection boundary layer flow past a vertical cone embedded in a non-Darcian isotropic porous regime with transverse magnetic field applied normal to the surface is considered. The heat and mass flux at the surface of the cone is modeled as a power-law according to qw(x) = xm and q*w (x) = xn respectively, where x denotes the coordinate along the slant face of the cone. Both Darcian drag and Forchheimer quadratic porous impedance are incorporated into the two-dimensional viscous flow model. The transient boundary layer equations are then n

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Yu, Luo-jian, and Xin Tong. "Study on the technical parameters model of the functional components of cone crushers." Nonlinear Engineering 11, no. 1 (2022): 175–85. http://dx.doi.org/10.1515/nleng-2022-0022.

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Abstract A cone crusher is a machine that crushes rock materials with high efficiency and low power consumption; it is one of the typical road construction equipment. To improve the production efficiency, mechanical performance, and crushing performance of the cone crusher, thus increasing profit, this study used Discrete element method (DEM) particle analysis software to optimize the structure of the moving cone, studied the crushing effect of the crusher, and carried out kinetics analyses. Based on DEM, the structure of the cone crusher cavity was analyzed and optimized. A Y51 cone crusher w

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Dareing, D. W. "Vibrations Increase Available Power at the Bit." Journal of Energy Resources Technology 107, no. 1 (1985): 138–41. http://dx.doi.org/10.1115/1.3231153.

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Drillstring vibrations are generally considered to be detrimental to downhole drilling equipment because they produce cyclic or fatigue loading. Tool joint failures, tubular washouts, and bit breakage are often fatigue related. On the positive side, dynamic forces applied to roller cone rock bits have the potential to increase penetration rate. This paper quantifies the available vibration energy at the bit and shows how to control the level of energy through bottom hole assembly design and rotary speed.

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