Results 181 to 190 of about 28,900,741 (351)
Multipath propagation model of spatio-temporal dispersion observed at base station in urban areas [PDF]
S. Ichitsubo, K. Tsunekawa, Yoshio Ebine
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Recent Advances in Wide‐Bandgap Perovskite Solar Cells
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley +1 more source
Postwall waveguide slot array with cosecant radiation pattern and null filling for base station antennas in local multidistributed systems [PDF]
Jiro Hirokawa, C. Yamazaki, Makoto Ando
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Characterization and Inverse Design of Stochastic Mechanical Metamaterials Using Neural Operators
This study presents a DeepONet‐based machine learning framework for designing stochastic mechanical metamaterials with tailored nonlinear mechanical properties. By leveraging sparse but high‐quality experimental data from in situ micro‐mechanical tests, high predictive accuracy and enable efficient inverse design are achieved.
Hanxun Jin+7 more
wiley +1 more source
Investigating the performance of smart antenna systems at the mobile and base stations in the down and uplinks [PDF]
Kai‐Kit Wong, K.B. Letaief, Ross Murch
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This work reveals that charge transport in nickel benzenehexathiol coordination nanosheets is governed by variable‐range hopping reflecting structural disorder. Electrolyte gating induces a switch in dominant carrier polarity from p‐type to n‐type and leads to an improvement in thermoelectric performance.
Tian Wu+8 more
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Simulation and Analysis of Base Station Buffer in UMTS Systems [PDF]
Namgi Kim+3 more
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A spectrum efficient cellular base-station antenna architecture [PDF]
Beach, MA, McGeehan, JP, Swales, SC
core +1 more source
Water Oxidation to Hydrogen Peroxide Over a Super‐Aerophilic Graphite Catalyst
Design of super‐aerophilic graphite catalyst capable of trapping in situ produced oxygen gas on its surface under the electrolyte environment. By so doing, it is able to moderate intermediate species binding, which is critical to enabling the two‐electron water oxidation reaction to hydrogen peroxide.
Umer Javed+16 more
wiley +1 more source