Results 121 to 130 of about 311,790 (337)
Advanced Science, EarlyView.Acoustic holograms act as key tools for information encryption, yet current schemes limit encryption dimensionality/security and require time‐consuming decryption. A compact device integrates multi‐dimensional cascaded acoustic holography with particle manipulation, employs extra secret keys, enables rapid decryption, and is validated via 1D/2D/3D ...
Qin Lin +8 more
wiley +1 more source
Construction of a Two‐Dimensional Molecular Slab with a π‐Extended Hexaarylbenzene Molecule
Angewandte Chemie, EarlyView.A 3D shape‐persistent molecule with a hexaarylbenzene structure consisting of six naphthothiophene diimide units enables the formation of a 2D molecular slab in the solid state, leading to a 2D interactive electronic structure suitable for application to n‐type organic field‐effect transistors.
Haruki Sanematsu +3 more
wiley +2 more sources
Advanced Science, EarlyView.This work provides a multifunctional programmable transmissive metasurface with phase and amplitude manipulation capability in the sub‐6G band. By applying different coding strategies, the proposed metasurface can realize vortex beam generation, holographic imaging under phase coding mode, and multi‐beam forming in phase‐amplitude joint coding mode ...
Hao Tian Shi +8 more
wiley +1 more source
50 Years of Giese Reaction – a Personal View
Angewandte Chemie, EarlyView.The Giese‐Reaction celebrates its 50. Birthday, it is a cyclic radical chain reaction centered around C,C‐bond formation in a three component synthesis. This minireview speaks about the birth of the name‐reaction, explains how the complete understanding of its reaction mechanism stimulates new methods in organic synthesis, and why it can proceed in ...
Martin Spichty +4 more
wiley +2 more sources
Precoding in Multibeam Satellite Communications: Present and Future Challenges
, 2016 Miguel Ángel Vázquez +7 more
openalex +2 more sources
Advanced Science, EarlyView.To address the challenge of high electro‐optic (EO) activity and thermal stability, four chromophores (BHG1–BHG4) are designed. These incorporate steric hindrance groups into the aniline donor, significantly raising their glass transition temperatures and enhancing alignment stability. The neat BHG2 film achieves an exceptional EO coefficient of 304 pm
Changqing Ge +9 more
wiley +1 more source
Advanced Science, EarlyView.Ag/Co3O4–C nanocomposites display well‐resolved lattice fringes and synergistic Ag/Co3O4 heterointerfaces that enhance charge transfer and active‐site exposure. The structural design enables superior bifunctional ORR/OER performance in alkaline media by promoting efficient adsorption and turnover of oxygen intermediates within an optimized ...
Adnan Qaseem +8 more
wiley +1 more source
Partially adaptive baeam-forming maethods based on genetic algorithms
Tongxin xuebao, 2006 An improved genetic algorithm（GA） for real time beam-forming of onboard planar array was presented. In or-der to meet the real-time processing requirements, this GA was combined with partially adaptive beam-forming tech-niques in the phase-only adaptive ...
JIN Jun1, WANG Hua-li1, LIU Miao2
doaj
Determination of optical technology experiments for a satellite [PDF]
Optical technology experiments for satellite - communications, acquisition, tracking, lasers, photometry, and ...
Atwood, J. G. +2 more
core +1 more source