Results 231 to 240 of about 13,205,673 (308)

Metasurface-controlled high-speed tunable external cavity lasers. [PDF]

Sci Adv
Basiri Z, Tomasino A, Jülg G, Lanfranchi A, Benea-Chelmus IC.   +4 more
europepmc   +1 more source

Flexible Sensors for Robotics Tactile Perception: A Review

Advanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

Direct all-electrical decoding of vector vortex beams on chip. [PDF]

Sci Adv
Dai M, Zhang X, Chen W, Wang C, Wang Q, Wang QJ.   +5 more
europepmc   +1 more source

WorMa: An Undulatory Robot With Center of Mass Regulation via Internal Fluid Redistribution for Amphibious Locomotion

Advanced Robotics Research, EarlyView.
WorMa is an amphibious undulatory robot that uses Center of Mass redistribution as the sole terrain adaptation mechanism. This mechanism is based on internal fluid mass redistribution through a pump‐driven latex balloon system that creates three profiles: head‐biased, balanced, and tail‐biased.
Daniil Filimonov, Nana Obayashi
wiley   +1 more source

Editorial for the Special Issue on Broadband Terahertz Devices and Communication Technologies, 2nd Edition. [PDF]

Micromachines (Basel)
Zhang J, Zhang L, Wang K, Yu X.
europepmc   +1 more source

CD9+ B Cells Induce T Follicular Helper Cell Apoptosis to Regulate Germinal Center Regression

Advanced Science, EarlyView.
A unique subset of CD9+ B cells regulates germinal center B (GC‐B) cell regression by inducing T follicular helper (Tfh) cell apoptosis through multiple signaling pathways, such as ALCAM‐CD6. FOXP1 plays a key role in GC‐B cell differentiation. These findings clarify mechanisms of GC degeneration and termination and offer potential targets for adenoid ...
Wenjing Liao, Lijuan Song, Meiqian Xu, Tianhao Liang, Yixuan Chen, Gui Chen, Zaihuan Lin, Huakang Du, Guofei Feng, Zhiming Feng, Qi Zhang, Fan Pan, Saixuan Yang, Xinyin Zhang, Wenxu Peng, Tianlong Li, Zhuoshen Lin, Yabang Chen, Jiayi Liu, Baoxin Peng, Yan Liu, Xing Niu, Ting Li, Chengyu Huang, Ke Mo, Jianlei Xie, Yu Zou, Xiaowen Zhang   +27 more
wiley   +1 more source

Transparent Topological Meta-Diplexer via Tightly Confined Valley Surface States. [PDF]

Adv Sci (Weinh)
Li S, Li P, Lan Z, Li Y, Wong H, Chen MLN.   +5 more
europepmc   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Frequency-Offset-Estimation-Assisted Transformer Neural Equalization for a 4.6 km Optical-Heterodyne RoF-Wireless OFDM Link. [PDF]

Sensors (Basel)
Ou Z, Zhou W, Zhou Y, Chen J, Lu X, Ma H, Xu S, Zhang J, Zhang H, Zhang Y, Yu J.   +10 more
europepmc   +1 more source

Performance of free space optical communication using M-array receivers at atmospheric conditions [PDF]

, 2009
Ghassemlooy, Zabih, Ahmadi, Vahid, Chaman Motlagh, Abolfazl   +2 more
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