Results 111 to 120 of about 5,322,042 (292)

Suppression of Common-Mode Resonance in Multiband Base Station Antennas. [PDF]

open access: yesSensors (Basel), 2023
Farasat M   +4 more
europepmc   +1 more source

[News Clip: Tracking station]

open access: yes, 1960
Video footage from the WBAP-TV television station in Fort Worth, Texas, to accompany a news story about a tracking station being assembled in ...
WBAP-TV (Television station : Fort Worth, Tex.)
core  

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
wiley   +1 more source

Laser‐Induced Local De‐Doping in Organic Semiconductors

open access: yesAdvanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer   +5 more
wiley   +1 more source

Annual report, Agricultural Experiment Station, University of Minnesota, 1893

open access: yes, 1894
1 electronic resource (PDF, xxii pages)University of Minnesota. Agricultural Experiment Station. (1894). Annual report, Agricultural Experiment Station, University of Minnesota, 1893.
University of Arizona. Agricultural Experiment Station.   +1 more
core  

Copper Electroplated TPMS Polymer Lattices for Lightweight Absorption Dominant Electromagnetic Interference Shielding

open access: yesAdvanced Materials Technologies, EarlyView.
Copper electroplating transforms lightweight 3D‐printed TPMS polymer lattices into effective electromagnetic shields. Topology, relative density, and conductive seed layer continuity govern copper penetration, electrical resistance, and attenuation. SEA consistently exceeds SER, while 35% RD Diamond lattice gives the best performance, reaching 48.72 dB
Aman Al Khatib   +6 more
wiley   +1 more source

An Evaluation Method on the Service Range of Reference Base Station in Assisted Beidou Navigation

open access: yes工程科学与技术, 2012
:In order to improve the performance of mobile positioning, enhance the Beidou navigation system application ability, reduce the investment cost of mobile network, an evaluation method of reference base station service range in assisted Beidou navigation
Zhang Guang-Hua   +2 more
doaj  

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