Results 211 to 220 of about 101,767 (351)

Beam steering flexible transparent metasurfaces based on multi-bit phase gradient variations. [PDF]

Sci Rep
Guo M, Xin P, Sun H, Li H, Chernogor LF, Jin Z, Liu T, Zheng Y.   +7 more
europepmc   +1 more source

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

A Beam Steering Vector Tracking GNSS Software-Defined Receiver for Robust Positioning. [PDF]

Sensors (Basel)
Burchfield S, Givhan C, Martin S.
europepmc   +1 more source

Wideband SIW Horn Antenna with Phase Correction for New Generation Beam Steerable Arrays

, 2019
Carla Di Paola, Kun Zhao, Shuai Zhang, Gert Frølund Pedersen   +3 more
openalex   +2 more sources

A Van der Waals Optoelectronic Synapse with Tunable Positive and Negative Post‐Synaptic Current for Highly Accurate Spiking Neural Networks

Advanced Functional Materials, EarlyView.
A van der Waals optoelectronic synaptic device based on a ReS2/WSe2 heterostructure and oxygen‐treated h‐BN is presented, which enables both positive and negative PSCs through photocarrier polarity reversal. Bidirectional plasticity arises from gate‐tunable band bending and charge trapping‐induced quasi‐doping.
Hyejin Yoon, Soeun Park, Yeong Kwon Kim, Juhwan Baek, Ki Han Kim, Seongil Yun, Hyeonchang Son, Jeongeun Choi, Byung Chul Jang, Dong‐Ho Kang   +9 more
wiley   +1 more source

Multi-user frequency selective beam steering by reconfigurable intelligent surfaces in the Ka-band. [PDF]

Sci Rep
Mueller L, Wolff A, Klingel S, Krieger J, Franke L, Stemler R, Rahm M.   +6 more
europepmc   +1 more source

Time-varying gradient metasurface with applications in all-optical beam steering. [PDF]

Nanophotonics, 2023
Karimi M, Alam MZ, Upham J, Reshef O, Boyd RW.   +4 more
europepmc   +1 more source

Antenna Beam Steering For Wireless Sensors Using Real Time Phase Shifter

, 2010
Sudipta Saha, Utkarshkrishna Unnikrishna, P. Khanna, Talal Al‐Attar   +3 more
openalex   +1 more source

Effect of Beam Steering on Echogenic and Nonechogenic Needle Visibility at 40°, 50°, and 60° Needle Insertion Angles

, 2017
Christopher Prabhakar, Vishal Uppal, Rakesh V. Sondekoppam   +2 more
openalex   +2 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source