Results 191 to 200 of about 19,811 (315)

Research on Wind Environment Characteristics of the QiTai Radio Telescope Site Based on Wind Tower Measurements. [PDF]

Sensors (Basel)
He F, Li L, Xu Q, Wang N, Zhang S, Wang H, Kazezkhan G, Cao X.   +7 more
europepmc   +1 more source

Reconfigurable Metamirrors Based on Compliant Mechanisms

Advanced Functional Materials, EarlyView.
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy, Lei Kang, Sawyer D. Campbell, Douglas H. Werner   +3 more
wiley   +1 more source

Electromagnetic (EM) metasurface with wireless signal control function fabricated by 3D printing. [PDF]

Microsyst Nanoeng
Lin Z, Zhang D, Ding W, Feng J, Yu L, Wang Z, Zhang N, Guo Q, Yang J.   +8 more
europepmc   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Dual‐Surface Reaction Enabled Organic–Inorganic Hybrid Photodiodes for Faint Light Detection and Imaging

Advanced Functional Materials, EarlyView.
This work proposes a dual‐surface reaction strategy to optimize the interfacial contacts in organic–inorganic photodetectors. 1,4,5,8,9,11‐hexaazatriphenylene hexacarbonitrile (HAT‐CN) and ytterbium layers are designed to react with the Si surface, thus minimizing noise.
Yibo Zhang, Gloria Vytas, Haozhe Wang, Dehui Zhang, Jiabao Shen, Chengliang Mao, Rajiv Prinja, Ali Javey, Zheng‐Hong Lu, Nazir P. Kherani   +9 more
wiley   +1 more source

The Aggregated Electromagnetic Vortex Wave and Multi-Modal Imaging Experiment. [PDF]

Sensors (Basel)
Li C, Tan X, Zhu S, Li S, You D, Liu J, Peng W, Wu T, He Y, Liu K, Zhang Z.   +10 more
europepmc   +1 more source

Durable Physically Mixed Microporous and Mesoporous MOFs/Nanofiber Aerogel 3D Composites for Effective Toxic Gas Capture and Organophosphonate Detoxification

Advanced Functional Materials, EarlyView.
Ultralight 3D nanofibrous aerogels embedded with metal‐organic frameworks effectively capture and neutralize toxic gases and organophosphonates. Incorporating mesoporous UiO‐66‐NH2 and HKUST‐1 into PAN/PVP fibers enables high MOF loading while maintaining mechanical strength and structural stability.
Mai O. Abdelmigeed, Muhammed Ziauddin Ahmad Ebrahim, John J. Mahle, Brandon B. Blount, Gregory W. Peterson, Saad A. Khan, Gregory N. Parsons   +6 more
wiley   +1 more source

Design and experimental validation of a compact inverted l-based quad-port MIMO antenna for 5G NR mm wave systems. [PDF]

Sci Rep
Singh AK, Dwivedi AK, Singh V, Pandey A.
europepmc   +1 more source

ANTENNA FOR FIELD RADIO COMMUNICATION

Proceedings of the international scientific conference " MODERN CHALLENGES IN TELECOMMUNICATIONS "
The main task of this work is to increase the efficiency of radio communication in field conditions. After analyzing the task, it was decided to replace the standard antenna of the portable radio station with a remote antenna of higher efficiency. The starting point of the experiment was a half-wave dipole antenna.
openaire   +1 more source

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

Advanced Functional Materials, EarlyView.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere, Yong Beom Kim, Colin Gilgenbach, James M. LeBeau, WooChul Jung, Harry L. Tuller   +5 more
wiley   +1 more source