Results 11 to 20 of about 55,939 (266)

A GHz Silicon-Based Width Extensional Mode MEMS Resonator with Q over 10,000

open access: yesSensors, 2023
This work presents a silicon-based capacitively transduced width extensional mode (WEM) MEMS rectangular plate resonator with quality factor (Q) of over 10,000 at a frequency of greater than 1 GHz.
Wenli Liu   +10 more
doaj   +1 more source

Novel physical network algorithm for indirect measurement of polished rod load of beam-pumping unit

open access: yesThe Journal of Engineering, 2019
A novel neural network algorithm for indirect measurement of the polished rod load of the beam-pumping unit is proposed. The dynamometer card is a two-dimension graph of polished rod load versus horse head position, and it is widely used for working ...
Ke Wang   +6 more
doaj   +1 more source

High Brightness GaN-on-Si Based Blue LEDs Grown on 150 mm Si Substrates Using Thin Buffer Layer Technology

open access: yesIEEE Journal of the Electron Devices Society, 2015
The commercial adoption of GaN-on-Si light emitting diode (LED) chip technology is lagging behind incumbent sapphire substrates due to significantly longer growth time and poorer crystalline quality.
Liyang Zhang   +9 more
doaj   +1 more source

High-Speed and High-Performance Continuous-Time ADCs for Automotive Receivers

open access: yesIEEE Open Journal of the Solid-State Circuits Society, 2023
This article presents an overview of high-speed and high-performance continuous-time (CT) ADCs with a special attention to the application field of automotive receivers for broadcast radio and radar.
Lucien J. Breems   +3 more
doaj   +1 more source

Fabrication of Ohmic Contact on N-Type SiC by Laser Annealed Process: A Review

open access: yesCrystals, 2023
In recent years, because of stringent needs in the fabrication of silicon carbide (SiC) power devices, laser annealing has been introduced to achieve local ohmic contact.
Guo Li   +13 more
doaj   +1 more source

Technology investigation on time series classification and prediction [PDF]

open access: yesPeerJ Computer Science, 2022
Time series appear in many scientific fields and are an important type of data. The use of time series analysis techniques is an essential means of discovering the knowledge hidden in this type of data.
Yuerong Tong   +9 more
doaj   +2 more sources

Rapidly Verifiable XMSS Signatures

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2020
This work presents new speed records for XMSS (RFC 8391) signature verification on embedded devices. For this we make use of a probabilistic method recently proposed by Perin, Zambonin, Martins, Custódio, and Martina (PZMCM) at ISCC 2018, that changes ...
Joppe W. Bos   +3 more
doaj   +3 more sources

Anomalous Hall Effect and Magneto-Optic Kerr Effect in Pt/Co/Pt Heterostructure

open access: yesMagnetochemistry, 2022
Magnetic multilayer with large perpendicular magnetic anisotropy (PMA) has attracted sustained interest owing to its importance to fundamental physics and applications.
Yiming Sun   +7 more
doaj   +1 more source

Recent Advances in Fabricating Wurtzite AlN Film on (0001)-Plane Sapphire Substrate

open access: yesCrystals, 2021
Ultrawide bandgap (UWBG) semiconductor materials, with bandgaps far wider than the 3.4 eV of GaN, have attracted great attention recently. As a typical representative, wurtzite aluminum nitride (AlN) material has many advantages including high electron ...
Hualong Wu   +6 more
doaj   +1 more source

Design and Switching Characteristics of Flip-Chip GaN Half-Bridge Modules Integrated with Drivers

open access: yesApplied Sciences, 2021
Half-bridge modules with integrated GaN high electron mobility transistors (HEMTs) and driver dies were designed and fabricated in this research. Our design uses flip-chip technology for fabrication, instead of more generally applied wire bonding, to ...
Lin Wang   +6 more
doaj   +1 more source

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