Results 71 to 80 of about 184,389 (296)
Физика волновых процессов и радиотехнические системы, 2013 In conjunction with the problem of the target selection on a clutter background with quasi-continuous radiation, the analysis of the spatial radar signal processing is made. The analysis is made for a case of non-isotropic array elements. The calculation
A.D. Pluzhnikov, E.N. Pribludova
doaj
Advanced Functional Materials, EarlyView.Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog +3 more
wiley +1 more source
Comparison of rectangular array and triangular array arrangements of cylindrical cans in corrugated box [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2008 Rectangular and triangular array arrangements of cans in a box were mathematically analyzed. A set of developed equations offers systematic approach of comparing two patterns.
Supachai Pisuchpen
doaj
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
Research study of some RAM antennas Final report, 18 Nov. 1964 - 18 Jun. 1965 [PDF]
Input impedance and radiation pattern determinations for cylindrical gap, waveguide excited and circular waveguide slot antenna ...
Butler, L. +5 more
core +1 more source
A Non‐Reciprocal Architected Porous Medium
Advanced Functional Materials, EarlyView.ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies +2 more
wiley +1 more source
A Design of Vertical Polarized Conformal Antenna and Its Array Based on UAV Structure
International Journal of Antennas and Propagation, 2017 The designs of conformal antenna and its array usually need to combine with different carrier structures. As for cone or cylindrical carrier, through using of invasive weed optimization (IWO), the conformal array should be the optimized design as the ...
Zhang Wei, Yang Junfeng
doaj +1 more source
Micromachines, 2014 We present a wide-angle, broad-spectrum cylindrical lens based on reflections from an array of three-dimensional, high-aspect-ratio micro-mirrors fabricated on a cylindrical elastomeric substrate, functionally inspired by natural reflecting superposition
Chi-Chieh Huang, Hongrui Jiang
doaj +1 more source
On the Impact of Antenna Topologies for Massive MIMO Systems
, 2015 Approximate expressions for the spatial correlation of cylindrical and uniform rectangular arrays (URA) are derived using measured distributions of angles of departure (AOD) for both the azimuth and zenith domains.
Dmochowski, Pawel A. +3 more
core +1 more source
Advanced Functional Materials, EarlyView.An original method is presented for producing artificial spider silk fibers with magnetic and magnetomechanical responsiveness, which consists in coating them with a nanometer‐thick layer of FeCo alloy by sputtering deposition. The challenge of combining organic materials and inorganic magnetic nanostructures is addressed, thus taking a step forward ...
Filippo Lanaro +5 more
wiley +1 more source