Results 191 to 200 of about 273,805 (290)

A Luneburg Lens Antenna for High-Speed Railway Communication. [PDF]

Micromachines (Basel)
Qiu QN, Yang D, Wang J.
europepmc   +1 more source

TiO6 as a Compensatory Structural Unit in Co‐Free, High‐Ni Layered Oxide for Durable Lithium‐Ion Batteries

Advanced Science, EarlyView.
Ti substitution stabilizes Co‐free high‐Ni layered oxides through both structural and electronic effects. TiO6 octahedra act as compensatory structural units that help interrupt cooperative Jahn–Teller distortion and suppress detrimental phase transitions, while the electron‐withdrawing inductive effect of Ti stabilizes the oxygen lattice. As a result,
Bixian Ying, Zhenjie Teng, Jun Wang, Honghong Tian, Charlotte von Petersdorff‐Campen, Rommel T. Tolla, Iuliia Mikulska, Linus Voigt, Sascha Nowak, Verena Naber, Alexander Schökel, Yuanming Liu, Michael Merz, Peter Nagel, Stefan Schuppler, Katja Frenzel, Adrian Jonas, Lena Mathies, Martin Winter, Karin Kleiner   +19 more
wiley   +1 more source

STARE: a semiconductor-integrated transmit-array architecture for 6G beamforming. [PDF]

Nat Commun
Kim J, Kim B, Park M, Oh J, Oh J.
europepmc   +1 more source

Activating Ionic Carbon Nitrides via Epitaxial Dyadic Coupling for Efficient Solar‐Driven H2O2 Generation

Advanced Science, EarlyView.
Epitaxial integration of a C1N1 phase onto KPHI creates a dyadic charge‐transfer nanostructure with strong interfacial electronic coupling. This architecture drives directional electron transfer from KPHI to C1N1, enabling efficient cocatalyst‐free solar H2O2 production.
Haijian Tong, Chenyan Zhao, Christian Mark Pelicano, Markus Antonietti   +3 more
wiley   +1 more source

An Adaptive Grouping Method for Efficient Multi-Beam Testing of Phased Arrays. [PDF]

Sensors (Basel)
Yan C, Zheng J, Gao H, Chen X.
europepmc   +1 more source

Bamboo‐Slip‐Inspired Conformal Reconfigurable Metasurfaces

Advanced Science, EarlyView.
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Qifan Li, Shaofeng Zhang, Qiang Feng, Dexiao Xia, Yajie Mu, Xiangjin Ma, Jiaqi Han, Haixia Liu, Guangyao Liu, Long Li   +9 more
wiley   +1 more source

Ultra-wideband reflective polarization rotator achieving 104% measured bandwidth with high-efficiency multi-state polarization control. [PDF]

Sci Rep
Baki AKM, Hasan MS, Chowdhury AR, Al-Amin MR, Ghadimi A, Baladi E.   +5 more
europepmc   +1 more source

Electrocatalytic CO2 Reduction over Sn‐Cu Bimetallic Catalysts Synthesized via an Amalgamated Lithium Metal Method

Advanced Science, EarlyView.
An amalgamated lithium metal method enables systematic control of Sn–Cu active‐site dimensions from isolated atoms to nanocrystallites. Increasing the metal loading shifts CO2 electroreduction selectivity from acetaldehyde on highly dispersed Sn–Cu sites to formate on Sn‐rich crystallites, revealing how bimetallic dispersion and local coordination ...
Minghao Xie, Shichen Guo, Jianxin Wang, Haozhe Zhang, Xun Zhan, Lauren Valentino, Di‐Jia Liu   +6 more
wiley   +1 more source

JuRa: The Juventas Radar on Hera Mission to Probe Internal Structure of Didymos and Dimorphos Asteroids. [PDF]

Space Sci Rev
Herique A, Plettemeier D, Rogez Y, Berquin Y, Ciarletti V, Fa W, Eyraud C, Haynes M, Heggy E, Kechouindi A, Kobayashi T, Kofman W, Laabs M, Nolbert D, Pettinelli E, Pursiainen S, Rochat S, Schmidt C, Virkki A, Záplata F, Zine S, Abell P, Carnelli I, Goldberg H, Green S, Küppers M, Lazzarin M, Michel P, Perez Lissi F, Sugita S, Ulamec S.   +30 more
europepmc   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source