scholarly journals Charging A Smartphone Over the Air: The Resonant Beam Charging Method

2022 ◽  
pp. 1-1
Author(s):  
Qingwen Liu ◽  
Mingliang Xiong ◽  
Mingqing Liu ◽  
Qingwei Jiang ◽  
Wen Fang ◽  
...  
Keyword(s):  
Resonant Beam

scholarly journals An Ultrahigh-Sensitivity Graphene Resonant Gyroscope

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1890
Author(s):  
Yang Lu ◽  
Zhan-She Guo ◽  
Shang-Chun Fan
Keyword(s):  
Angular Velocity ◽  
High Sensitivity ◽  
Velocity Variation ◽  
Beam Length ◽  
Sensing Element ◽  
Finite Element Software ◽  
Resonant Beam ◽  
Frequency Output ◽  
Length Width ◽  
Ultrahigh Sensitivity

In this study, a graphene beam was selected as a sensing element and used to form a graphene resonant gyroscope structure with direct frequency output and ultrahigh sensitivity. The structure of the graphene resonator gyroscope was simulated using the ANSYS finite element software, and the influence of the length, width, and thickness of the graphene resonant beam on the angular velocity sensitivity was studied. The simulation results show that the resonant frequency of the graphene resonant beam decreased with increasing the beam length and thickness, while the width had a negligible effect. The fundamental frequency of the designed graphene resonator gyroscope was more than 20 MHz, and the sensitivity of the angular velocity was able to reach 22,990 Hz/°/h. This work is of great significance for applications in environments that require high sensitivity to extremely weak angular velocity variation.

Strong interaction of solitons and their trailing oscillations with resonant beam ions

1992 ◽  
Vol 4 (9) ◽  
pp. 2807-2816 ◽  
Author(s):  
Tadao Honzawa ◽  
Masazo Arakawa ◽  
Sanjay Singh
Keyword(s):  
Strong Interaction ◽  
Resonant Beam ◽  
Interaction Of Solitons

Quantum Space Charge Waves in a Waveguide Filled with Fermi-Dirac Plasmas Including Relativistic Wake Field and Quantum Statistical Pressure Effects

2018 ◽  
Vol 73 (4) ◽  
pp. 295-301 ◽  
Author(s):  
Woo-Pyo Hong ◽  
Young-Dae Jung
Keyword(s):  
Space Charge ◽  
Plasma Waveguide ◽  
Wave Number ◽  
Beam Instability ◽  
Quantum Space ◽  
Instability Domain ◽  
Wake Field ◽  
Beam Velocity ◽  
Resonant Beam ◽  
Quantum Statistical

AbstractThe effects of quantum statistical degeneracy pressure on the propagation of the quantum space charge wave are investigated in a cylindrically bounded plasma waveguide filled with relativistically degenerate quantum Fermi-Dirac plasmas and the relativistic ion wake field. The results show that the domain of the degenerate parameter for the resonant beam instability significantly increases with an increase of the scaled beam velocity. It is found that the instability domain of the wave number increases with an increase of the degenerate parameter. It is also found that the growth rate for the resonant beam instability decreases with an increase of the degenerate parameter. In addition, it is shown that the lowest harmonic mode provides the maximum value of the growth rates. Moreover, it is shown that the instability domain of the wave number decreases with an increase of the beam velocity.

Dynamic Testing of Automotive Rubber Parts by the Resonant Beam Tester. Effect of Polymer, Deflection, Age, and Temperature on Dynamic Rate

1964 ◽  
Vol 37 (4) ◽  
pp. 866-877 ◽  
Author(s):  
M. Lowman ◽  
H. E. Keller
Keyword(s):  
Natural Rubber ◽  
Room Temperature ◽  
Dynamic Testing ◽  
Effect Of Temperature ◽  
Ethylene Propylene ◽  
Rate Decrease ◽  
Resonant Beam

Abstract When the recipe is basically the same, different polymers differ in dynamic rate and damping. Ethylene—propylene terpolymer, SBR, neoprene, and butyl gave higher dynamic rate and higher damping than natural rubber, polyisoprene, and the blend of polyisoprene and cis 1,4-polybutadiene. The lowest dynamic rate and lowest damping is obtained with polyisoprene. At room temperature, polymers having the highest damping also have the largest ratio of dynamic to static rate. One cannot predict the effect of temperature on dynamic rate by measuring static rate at these temperatures. Increase in temperature lowers dynamic rate, decrease in temperature increases it. This effect was least with a blend of polyisoprene and cis 1,4-polybutadiene, closely followed by polyisoprene, and natural rubber. The largest change was with butyl. Dynamic rate increases with time after cure. After 26 hr, dynamic rate is a function of the logarithm of time. This effect is least with polyisoprene. Natural rubber, SBR, EPT, neoprene and a blend of polyisoprene with cis 1,4-polybutadiene all follow Equation (1). Butyl has, by far, the greatest change in dynamic rate with time. Reducing the deflection from 0.012 in. to 0.004 in. linearly increased the dynamic rate. Times of vibration between 2 minutes and 60 minutes at room temperature had no effect on dynamic rate.

scholarly journals Resonant Beam Communications With Photovoltaic Receiver for Optical Data and Power Transfer

2020 ◽  
Vol 68 (5) ◽  
pp. 3033-3041
Author(s):  
Mingliang Xiong ◽  
Qingwen Liu ◽  
Mingqing Liu ◽  
Xin Wang ◽  
Hao Deng
Keyword(s):  
Optical Data ◽  
Power Transfer ◽  
Resonant Beam

Determination of Elastic Modules in Dependence on Orientation by the Resonant Beam Technique

2006 ◽  
Vol 514-516 ◽  
pp. 815-824
Author(s):  
Stephan Puchegger ◽  
Dieter Loidl ◽  
Herwig Peterlik ◽  
Karl Kromp
Keyword(s):  
Correction Factor ◽  
Transversely Isotropic ◽  
Carbon Composite ◽  
Test Material ◽  
Step Process ◽  
Resonant Beam ◽  
Isotropic Carbon ◽  
Elastic Modules ◽  
Beam Technique

A novel procedure, based on the Resonant Beam Technique, and its application to anisotropic composites is presented. The evaluation of the elastic modules of anisotropic materials from the measurement of the transverse eigenfrequency spectra of resonant beams is performed by a two step process: firstly the beams cut out from the test material in different directions are evaluated in-dependently of each other under the assumption, that they are isotropic, solving Timoshenko´s equations using an isotropic correction factor for shear. Secondly the beams are evaluated together as representatives of one anisotropic material, using an anisotropic correction factor for shear. The equipment, developed for such measurements is presented. Finally, the procedure is applied to a transversely isotropic carbon fibre-reinforced carbon composite and the relevance of the results is discussed.

Sign in / Sign up

Export Citation Format

Share Document