Results 111 to 120 of about 25,408 (310)

Clean Up Behind You ‐ Novel Patterning Approach for Solid Immersion Lenses

Advanced Functional Materials, EarlyView.
A focused ion beam (FIB) milling strategy enables rapid fabrication of solid immersion lenses (SILs) with smooth, debris‐free surfaces eliminating the need for post‐processing. The optimized pattern improves efficiency and surface quality. SILs containing NV centers are also investigated, confirming the technique's suitability for quantum and photonic ...
Aleksei Tsarapkin, Stefan Facsko, Wentao Zhang, Anna Mogilatenko, Kilian Unterguggenberger, Bailiang Li, Cem Güney Torun, Gerhard Hobler, Tommaso Pregnolato, Tim Schröder, Katja Höflich   +10 more
wiley   +1 more source

Development of an L-Band SAR Microsatellite Antenna for Earth Observation

Aerospace, 2018
A compact synthetic aperture radar microsatellite antenna operating in the L-band is presented. To reduce size and weight of the small spaceborne SAR, we utilize a lightweight deployable parabolic mesh reflector and operate at low Earth orbital altitudes.
Katia Nagamine Urata, Josaphat Tetuko Sri Sumantyo, Cahya E. Santosa, Tor Viscor   +3 more
doaj   +1 more source

Reconfigurable Antennas in mmWave MIMO Systems

, 2017
The key obstacle to achieving the full potential of the millimeter wave (mmWave) band has been the poor propagation characteristics of wireless signals in this band.
Almasi, Mojtaba Ahmadi, Behdad, Nader, Jafarkhani, Hamid, Mehrpouyan, Hani, Vakilian, Vida   +4 more
core  

Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers

Advanced Functional Materials, EarlyView.
A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley   +1 more source

Multi-User Diversity vs. Accurate Channel State Information in MIMO Downlink Channels

, 2009
In a multiple transmit antenna, single antenna per receiver downlink channel with limited channel state feedback, we consider the following question: given a constraint on the total system-wide feedback load, is it preferable to get low-rate/coarse ...
Jindal, Nihar, Ravindran, Niranjay
core   +1 more source

Bioactive Conductive Ti3C2Tx‐Ce Hydrogel Facilitates Spinal Cord Injury Repair Through ROS Scavenging and Mitochondrial Regulation

Advanced Functional Materials, EarlyView.
Bioactive conductive Ti3C2Tx‐Ce hydrogels with with scavenging ROS and alleviating neuronal mitochondrial dysfunction are exploited for SCI treatment. This functionality is attributed to interfacial activation modification of Ti3C2Tx with Ce3+ ions to in‐situ form Ce(OH)x‐mediated protective layer, which is beneficial to enabling stable intracellular ...
Weikang Wang, Qing Liu, Ang Lv, Yabin Lin, Jiawei Chen, Ning Ding, Chunlei Zhang, Shuai Zhou, Bo Yuan, Weiwei Zhao, Liming Li, Luping Zhang, Fei Huang   +12 more
wiley   +1 more source

Calibrating CHIME, A New Radio Interferometer to Probe Dark Energy

, 2014
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a transit interferometer currently being built at the Dominion Radio Astrophysical Observatory (DRAO) in Penticton, BC, Canada. We will use CHIME to map neutral hydrogen in the frequency range
Addison, Graeme E., Amiri, Mandana, Bandura, Kevin, Bond, J. Richard, Cliche, Jean-François, Connor, Liam, Davis, Greg, Deng, Meiling, Denman, Nolan, Dobbs, Matt, Fandino, Mateus, Fong, Heather, Gibbs, Kenneth, Gilbert, Adam, Griffin, Elizabeth, Halpern, Mark, Hanna, David, Hincks, Adam D., Hinshaw, Gary, Höfer, Carolin, Klages, Peter, Landecker, Tom, Masui, Kiyoshi, Newburgh, Laura B., Parra, Juan Mena, Pen, Ue-Li, Peterson, Jeff, Recnik, Andre, Shaw, J. Richard, Sigurdson, Kris, Sitwell, Michael, Smecher, Graeme, Smegal, Rick, Vanderlinde, Keith, Wiebe, Don   +34 more
core   +1 more source

Solvent‐Free Manufacturing of Multifunctional Gas Diffusion Electrode Architectures for Enhanced CO2 Conversion From Low‐Concentration Streams

Advanced Functional Materials, EarlyView.
A tandem gas diffusion electrode (GDE) leveraging hierarchically engineered microgranules enables efficient CO2 electroreduction under dilute CO2 conditions. A key innovation lies in the solvent‐free precision assembly of metal–organic‐frameworks, carbon nanotubes, and copper nanoparticles.
Kai‐Jen Wu, Carter Racine, Ahmed Badreldin, Shengyao Wang, Zongsu Han, Hong‐Cai Zhou, Ying Li, Heng Pan   +7 more
wiley   +1 more source

A novel millimetre‐wave 2D wide‐angle scanning phased array antenna based on decoupling surface

IET Microwaves, Antennas & Propagation
This paper presents a novel millimetre‐wave (mmWave) 2D wide‐angle scanning (WAS) phased array antenna (PAA) based on decoupling surface (DS). The proposed element is a coaxial feeding stacked patch antenna structure that consists of an L‐shape coaxial ...
Bao Xiong, Yongzhong Zhu, Yunxue Xu, Wenxuan Xie, Leng Han   +4 more
doaj   +1 more source

Engineering Hydrogen‐Down Water Configurations for Ampere‐Level Electrochemical CO2 Reduction to Formate

Advanced Functional Materials, EarlyView.
Electrochemical CO2 reduction (ECR) to formate is a promising route for sustainable chemical production. Herein, we report the synthesis catalysed byBi‐HfO2@C. The AIMD simulations, DFT calculations, and in situ SEIRAS measurements show that the modification of HfO2 on the Bi surface steers the interfacial water to adopt a favorable hydrogen‐down (OH2↓)
Xiao‐Dong Guo, Shao‐Qing Liu, Jia‐Yi Wu, Qi‐Rui Wen, Xiaoxiao Wei, Shu‐Wen Wu, Xian‐Zhu Fu, Jing‐Li Luo   +7 more
wiley   +1 more source