Results 31 to 40 of about 234,397 (278)

Millimeter wave carbon nanotube gas sensor [PDF]

, 2007
This Letter reports experimental observations regarding the significant changes in the transmission modulus and phase of the propagating microwave signals up to 110 GHz in a micromachined coplanar waveguide supported on a dielectric membrane with a ...
Bary, Laurent, Dragoman, Mircea, Dubuc, David, Flahaut, Emmanuel, Fourn, Erwan, Grenier, Katia, Plana, Robert   +6 more
core   +3 more sources

Three-dimensional graphene supported Fe3O4 coated by polypyrrole toward enhanced stability and microwave absorbing properties

Journal of Materials Research and Technology, 2020
The composites GFPs were prepared through anchoring the microspheres of Fe3O4 cores coated with polypyrrole shells (Fe3O4@Ppy) on the three-dimensional (3D) graphene areogel (GA) with the one-step chemical reduction method.
Jinhuan Li, Huanmin Ji, Yanfang Xu, Jiaojiao Zhang, Yi Yan   +4 more
doaj   +1 more source

The Microwave Thermal Thruster Concept [PDF]

, 2004
The microwave thermal thruster heats propellant via a heat-exchanger then expands it through a rocket nozzle to produce thrust. The heat-exchanger is simply a microwave-absorbent structure through which propellant flows in small channels. Nuclear thermal
Culick, Fred E. C., DiDomenico, Leo D., Parkin, Kevin L. G.   +2 more
core   +1 more source

MXene nanocomposites for microwave absorption

Journal of Physics: Conference Series, 2022
Abstract The present era of technology and development, more and more electronic devices are used in various feild releasing microwave radiation in environment. These microwave waves can interfere in high precise communication and medical equipments affecting their performance.
Anuj Garg, Anshika Goel, Sangeeta Prasher, Rajesh Kumar, Rakesh Moulick   +4 more
openaire   +1 more source

Greatly enhanced absorption of non-resonant microwave fields by ultracold molecules near a Feshbach resonance

, 2010
We show that the probability of the collision-induced absorption of non-resonant microwave photons by a gas of ultracold molecules is dramatically enhanced near a Feshbach scattering resonance.
Alyabyshev, Sergey V., Krems, Roman V.
core   +1 more source

An experimental study on changes in sound absorption capability of spruce (Picea sitchensis), Douglas fir (Pseudotsuga menziesii), and larch (Larix kaempferi) after microwave treatment

Journal of Wood Science, 2022
This study investigated changes in the sound absorption coefficients of three anatomical sections of cubed spruce (Picea sitchensis), Douglas fir (Pseudotsuga menziesii), and larch (Larix kaempferi) after microwave treatment.
Eun-Suk Jang, Chun-Won Kang
doaj   +1 more source

Microwave Photon Detector in Circuit QED [PDF]

, 2009
Quantum optical photodetection has occupied a central role in understanding radiation-matter interactions. It has also contributed to the development of atomic physics and quantum optics, including applications to metrology, spectroscopy, and quantum ...
E. Solano, G. Romero, J. J. García-Ripoll, L. Mandel, S. Haroche   +4 more
core   +2 more sources

Spectral properties of microwave graphs with local absorption

, 2014
The influence of absorption on the spectra of microwave graphs has been studied experimentally. The microwave networks were made up of coaxial cables and T junctions. First, absorption was introduced by attaching a 50 Ohm load to an additional vertex for
Allgaier, M., Barkhofen, S., Gehler, S., Kuhl, U., Stöckmann, H. -J.   +4 more
core   +2 more sources

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Simulation and measurement of optimized microwave reflectivity for carbon nanotube absorber by controlling electromagnetic factors

Scientific Reports, 2017
Heat-treatments may change the defect and surface organic groups of carbon nanotubes (CNTs), and lead to significant changes in the microwave electromagnetic parameter of CNTs.
Danfeng Zhang, Zhifeng Hao, Yannan Qian, Yinxin Huang, Bizeng, Zhenda Yang, Wu Qibai   +6 more
doaj   +1 more source