Results 161 to 170 of about 32,533 (358)

Single Feed Circularly Polarized Poly Fractal Antenna For Wireless Applications

, 2014
V. V. Reddy, N. V. S. N. Sarma
openalex   +2 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

A dual frequency microstrip antenna for Ka band [PDF]

For fixed satellite communication systems at Ka band with downlink at 17.7 to 20.2 GHz and uplink at 27.5 to 30.0 GHz, the focused optics and the unfocused optics configurations with monolithic phased array feeds have often been used to provide multiple ...
Baddour, M. F., Lee, R. Q.
core   +1 more source

DUAL CIRCULARLY POLARIZED ANTENNA WITH SUSPENDED STRIP LINE FEEDING [PDF]

, 2014
Jianjun Wu, Hao Yang, Yingzeng Yin
openalex   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

Advanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss, Shiyi Wang, Brian P. Setzler, Yushan Yan, Adam Z. Weber   +4 more
wiley   +1 more source

Overcome the Limitations of Performance Parameters of On-Chip Antennas Based on Metasurface and Coupled Feeding Approaches for Applications in System-on-Chip for THz Integrated-Circuits

, 2019
Mohammad Alibakhshikenari, Bal S. Virdee, Chan Hwang See, Raed A. Abd‐Alhameed, Francisco Falcone, Ernesto Limiti   +5 more
openalex   +2 more sources

Design of a Novel Compact Slotted Cavity With Shaped Beam for High Power Microwave Feed Antenna Using Asymmetric High Order Mode [PDF]

, 2019
Xiao Ma, Feng Yang, Peng Yang, Rui Wang, Yi Yan, Kexiu Chen   +5 more
openalex   +1 more source

One‐Step Fabrication of Highly Transparent Superhydrophobic Coatings Via Atmospheric Pressure Radio Frequency Plasma Deposition

Advanced Materials Interfaces, EarlyView.
Atmospheric‐pressure RF plasma deposition enables the fabrication of transparent, superhydrophobic coatings with anti‐reflective functionality. Process optimization yields high optical transmittance, robust environmental stability, and self‐cleaning properties.
Sultan S. Ussenkhan, Baglan A. Kyrykbay, Almasbek U. Utegenov, Sagi A. Orazbayev, Assanali T. Sultanov, Maratbek T. Gabdullin, Tlekkabul S. Ramazanov, Yerassyl Yerlanuly   +7 more
wiley   +1 more source

Advanced microwave radiometer antenna system study [PDF]

The practicability of a multi-frequency antenna for spaceborne microwave radiometers was considered in detail. The program consisted of a comparative study of various antenna systems, both mechanically and electronically scanned, in relation to specified
Kummer, W. H., Seaton, A. F., Villeneuve, A. T.   +2 more
core   +1 more source

Dual Band and Beam-Steering Antennas Using Reconfigurable Feed on Sierpinski Structure [PDF]

, 2015
Seonghun Kang, Chang Won Jung
openalex   +1 more source