Results 11 to 20 of about 25,341 (70)
Design of high reliability beacon system based on GPS and Beidou
A new miniaturized beacon is designed aiming at the retrieval of aircraft recorder. The beacon consists of a GPS module, a control unit, a Beidou module and a power supply module.
Yu Haobo +3 more
doaj +1 more source
Millimeter-wave noise modeling of nanoscale MOSFETs
Based on the physical structure of 40 nm MOSFETs, this paper establishes a unified MOSFET millimeter-wave noise model to characterize the characteristics of drain-current noise, inducted gate-current noise and cross-correlation noise between them.
Peng Xiaomei, Zhao Aifeng, Wang Jun
doaj +1 more source
Restoration of online video ferrography images for out-of-focus degradations
Ferrography is a technology that can be applied in inspecting features of wear particles in machines and inferring their health status. With the development of online ferrography, which employs image processing to captured wear particle images, the ...
Wenkui Xi +5 more
doaj +1 more source
Real-time attacks blind detection and analysis algorithm of mobile internet network
Attack detection algorithms of large scale mobile internet network need the prior information of attack behaviors or supervised learning to attack behaviors, so these algorithms is not real time and applicable, a real-time attacks blind detection and ...
Shi Erying, Wang Zheng
doaj +1 more source
A high time slot utilization MAC protocol for terahertz wireless personal area networks
To resolve the problem that the standard aggregation frame mechanism and slot application method of the existing IEEE802.15.3c and High Efficient Fairness MAC(HEF-MAC) protocol applied to the terahertz wireless personal area network is not perfect, a ...
Ren Zhi, Tian Jieli, You Lei, Lv Yuhui
doaj +1 more source
Design on RF-DC converter of the receiving system of wirelesspower transmission
The traditional bridage full wave RF-DC conversion circuit ignores the diode conduction loss resulting to system efficiency down. This paper design a RF-DC converter circuit of the receiving system of wireless power transmission based on class-E zero ...
Chen Li +3 more
doaj +1 more source
I–f closed‐loop starting strategy of high‐speed PMSM based on current vector adaptive regulation
Conventional I–f startup control algorithms often lead to significant speed fluctuations, extended convergence times, and sluggish dynamic responses when the motor is working at the acceleration process.
Guxuan Xu, Feng Zhao, Tao Liu
doaj +1 more source
High-gain quadratic boost DC converter based on cld module
In order to meet the demand of high-gain direct-current boost converter in the process of using new energy, a novel quadratic boost direct-current converter is proposed.
Zhao Xinkuan +3 more
doaj +1 more source
Adaptive inertia and damping of grid‐connected inverter with improved VSG control
The control technology of virtual synchronization generator (VSG) based on energy storage system is proposed to compensate for the inertia and damping loss caused by the grid connection of distributed generators.
Zhitao Ling +3 more
doaj +1 more source
A Multifunctional Reading Assistant for the Visually Impaired
In the growing market of camera phones, new applications for the visually impaired are nowadays being developed thanks to the increasing capabilities of these equipments.
Céline Mancas-Thillou +4 more
doaj +1 more source

