Results 121 to 130 of about 253,287 (316)

RADIO-FREQUENCY HEATING* [PDF]

Nature, 1946
openaire   +2 more sources

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Revolutionary Ideas for Radio Regulation [PDF]

Radio technology is the key to rapid broadband development that reaches even geographically remote areas of the world. To get needed, radical changes in radio regulation, much more attention should be directed toward central issues of constitutional law.
Douglas A. Galbi
core  

A D-Band Self-Packaged Low Loss Grounded Coplanar Waveguide to Rectangular Waveguide Transition With Silicon-Based Air Cavity-Backed Structure

IEEE Journal of Microwaves
A novel D-band self-packaged silicon-based air cavity-backed transition from grounded coplanar waveguide to air-filled rectangular waveguide was investigated, fabricated, and measured in this work.
Zi-Qi Zhang, Xiao-Long Huang, Liang Zhou, Yin-Shan Huang, Cheng-Rui Zhang   +4 more
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Structureless excitation and manipulation of dynamic holographic plasmonic slides

Nature Communications
Surface plasmons are bound modes at metal–dielectric interfaces and enable a wide range of applications. However, holographic plasmonic fields are usually realized with complex nanostructures, introducing diffraction background and limiting flexibility ...
Yuquan Zhang, Haixiang Ma, Zhendong Ju, Xusheng Chen, Yixuan Chen, Xi Xie, Luping Du, Changjun Min, Xiaocong Yuan   +8 more
doaj   +1 more source

Monolayer Chiral Metasurface for Generation of Arbitrary Cylindrical Vector Beams

Photonics
The cylindrical vector beam (CVB) has been widely studied and applied in recent years. However, many CVB generation methods suffer from complex systems, and large-size devices are required. Here, we propose a monolayer chiral metasurface composed of spin-
Qian Chen, Peijun Liu, Yanan Fu, Shuoshuo Zhang, Yuquan Zhang, Xiaocong Yuan, Changjun Min   +6 more
doaj   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

A novel mixer linearisation technique using frequency retranslation

, 2002
The inherent non-linearity of mixers in communication systems creates numerous undesired effects, which are particularly acute in broadband receiver design for software defined radio (SDR) applications.
Macleod, JR, Nesimoglu, T, Warr, PA, Beach, MA   +3 more
core  

Porous nanocomposites with enhanced intrinsic piezoresistive sensitivity for bioinspired multimodal tactile sensors

Microsystems & Nanoengineering
In this work, we propose porous fluororubber/thermoplastic urethane nanocomposites (PFTNs) and explore their intrinsic piezoresistive sensitivity to pressure.
Jianpeng Zhang, Song Wei, Caichao Liu, Chao Shang, Zhaoqiang He, Yu Duan, Zhengchun Peng   +6 more
doaj   +1 more source