Existing uniform fields are usually based on the special arrangement of array antenna. The generated by flat-top beam shaping in angular far-field area or point focusing near-field directly subject to configuration and cannot be flexibly controlled. This paper presents a field generation method combination spectral domain improved time reversal techniques. is not limited arrangement. It can gen...

We theoretically study the current-induced dynamics of a domain wall in ferromagnetic nanotube by developing theory for orbital angular momentum and torque on it. Specifically, with nontrivial magnetization winding along circumference is shown to possess finite momentum, which proportional product its Skyrmion charge position, current exert changing thereby drives The interpreted as transfer fr...

An Erratum to this paper has been published: https://doi.org/10.1134/S1064562422050015

Millimeter-wave (mmW)/Terahertz (THz) wideband communication employing a large-scale antenna array is promising technique of the sixth-generation (6G) wireless network for realizing massive machine-type communications (mMTC). To reduce access latency and signaling overhead, we design grant-free random scheme based on joint active device detection channel estimation (JADCE) mmW/THz access. In pa...

The mode of operation of mini parabolic solar panels made of germanium, mild steel and aluminium were investigated experimentally, as means of providing heated water on a farmland; the process was also modelled. Angular adjustments of the solar collectors from 70-90o were adopted in order to determine, the best material of construction for the parabolic solar collector and the angular orientati...

We present a three-dimensional finite-difference time-domain analysis of localized defect modes in an optically thin dielectric slab that is patterned with a two-dimensional array of air holes. The symmetry, quality factor, and radiation pattern of the defect modes and their dependence on the slab thickness are investigated. © 1999 Optical Society of America [S0740-3224(99)01302-8] OCIS codes: ...

This paper describes two approaches for the simultaneous identification of the coulomb and viscous parameters in kinematical joints. One is a time-domain method (TDM) and the other is a frequency-domain method (FDM). Simulation shows that both of the two methods have good performances in identifying friction at high SNR (90dB). But at low SNR (20dB), the estimation accuracy of the frequency-dom...

The very amino-terminal domain of the huntingtin protein is directly located upstream of the protein's polyglutamine tract, plays a decisive role in several important properties of this large protein and in the development of Huntington's disease. This huntingtin 1-17 domain is on the one hand known to markedly increase polyglutamine aggregation rates and on the other hand has been shown to be ...

Optical noise, the core of the pulse-contrast challenge for ultra-high peak power femtosecond lasers, exhibits spatiotemporal (ST) coupling induced by angular dispersion. Full characterization of such ST noise requires two-dimensional measurements in the ST domain. Thus far, all noise measurements have been made only in the temporal domain. Here we report the experimental characterization of th...

Seth’s transition theory is applied to the problems of thickness variation parameter in a thin rotating disc by finite deformation. Neither the yield criterion nor the associated flow rule is assumed here. The results obtained here are applicable to compressible materials. If the additional condition of incompressibility is imposed, then the expression for stresses corresponds to those arising ...