Results 11 to 20 of about 209,492 (196)

Simulation study of the over dense plasma in an electron cyclotron resonance miniature ion source [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2023
In this paper, the plasma of a 2.45 GHz permanent magnet miniature ECR ion source has been simulated and discussed. The source with a cylindrical plasma chamber of 50 mm in radius, 50 mm in length, and a maximum input power of 1kW generates a 10 mA, 50 ...
H.R. Mirzaei   +3 more
doaj   +1 more source

Energy consumption and dehydration parameters of microwave drying of carrot [PDF]

open access: yesActa Agriculturae Serbica, 2022
The parameters of microwave dehydration (thickness, mass load, and microwave power level) of carrot slices had a statistically significant (P < 0.05) effect on the drying process.
Petković Marko   +6 more
doaj   +1 more source

Cascaded Microwave Frequency Transfer over 300-km Fiber Link with Instability at the 10−18 Level

open access: yesRemote Sensing, 2021
Comparing and synchronizing atomic clocks between distant laboratories with ultra-stable frequency transfer are essential procedures in many fields of fundamental and applied science.
Wenxiang Xue   +4 more
doaj   +1 more source

Implementation of Digital Beamforming System for Microwave Power Transfer With Real-Time Beam Scanning

open access: yesIEEE Access, 2023
In this study, we propose a digital beamforming system for microwave power transfer with a real-time beam-scanning algorithm for tracking a moving receiver. To perform scanning, each channel in the transmitter generates and converts a baseband signal for
Minjae Ahn   +4 more
doaj   +1 more source

Large microwave generation from d.c. driven magnetic vortex oscillators in magnetic tunnel junctions [PDF]

open access: yes, 1999
Spin polarized current can excite the magnetization of a ferromagnet through the transfer of spin angular momentum to the local spin system. This pure spin-related transport phenomena leads to alluring possibilities for the achievement of a nanometer ...
Dussaux, A.   +12 more
core   +5 more sources

Microwave building as an application of wireless power transfer [PDF]

open access: yesWireless Power Transfer, 2014
We propose a wireless power distribution system (WPDS) operating at 2.45 GHz CW in buildings instead of wired power distribution in order to reduce the initial cost of the building. Required technologies for the WPDS are (a) low-cost and low-loss deck plate waveguide, (b) variable microwave power distributor for the waveguide, and (c) high-power (>100 ...
Naoki Shinohara   +6 more
openaire   +1 more source

RF and Microwave Power Standards from 10 MHz to 40 GHz over Decades [PDF]

open access: yesJournal of the Korean Institute of Electromagnetic Engineering and Science, 2018
Radio frequency (RF) and microwave power is one of the key quantities in the framework of electromagnetic measurement standards. Therefore, the stability of the power standard is essential to users’ reliable measurements in various areas.
Tae-Weon Kang   +3 more
doaj   +1 more source

A Study on Automatically Target-Chasing Microwave Power Transfer Systems in Multipath Environments

open access: yesEnergies, 2022
In this paper, we propose novel retrodirective systems to improve the efficiency and safety of microwave power transmission (MPT) systems in multipath environments.
Naoki Shinohara, Taichi Sasaki
doaj   +1 more source

Wireless Power Transfer System Based on Strapping Resonators

open access: yesApplied Sciences, 2018
In this study, a kind of strapped resonator is proposed to deal with high power wireless power transfer (WPT) in microwave regimes. In many specific applications, such as high power microwave wireless power transfer system (WPT), a coil resonator is not ...
Fei-Fei Guo, Shuai Ding, Bing-Zhong Wang
doaj   +1 more source

A Comparison of Laser and Microwave Approaches to CW Beamed Energy Launch [PDF]

open access: yes, 2006
One approach to beamed energy propulsion uses a solid heat exchanger to absorb energy from a distant source and transfer it to a working fluid. Systems of this type can be designed using either microwave or laser sources.
Kare, Jordin T., Parkin, Kevin L. G.
core   +1 more source

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