Results 11 to 20 of about 372,503 (352)

Leg Conversion Method for the Continuous Control of a Railway Vehicle Propulsion Inverter

open access: yesEnergies, 2023
In this study, we propose a whole-leg scheme for the continuous control of a railway vehicle propulsion inverter. The three-leg method is commonly used to obtain the output AC power from the input DC voltage in a railway vehicle propulsion inverter. When
Jongyong Choi   +4 more
doaj   +1 more source

Fast Response GaAs Photodetector Based on Constructing Electron Transmission Channel

open access: yesCrystals, 2021
Low-dimensional GaAs photodetectors have drawn a great deal of attention because of their unique absorption properties and superior responsivity. However, their slow response speed caused by surface states presents challenges.
Shuai Guo   +7 more
doaj   +1 more source

Peanut Defect Identification Based on Multispectral Image and Deep Learning

open access: yesAgronomy, 2023
To achieve the non-destructive detection of peanut defects, a multi-target identification method based on the multispectral system and improved Faster RCNN is proposed in this paper.
Yang Wang   +8 more
doaj   +1 more source

Effect of Post Thermal Annealing on the Optical Properties of InP/ZnS Quantum Dot Films

open access: yesNanoscale Research Letters, 2018
The enhancement of optical properties via thermal annealing on InP/ZnS core/shell quantum dot (QD) film was investigated in this work. The increase of emission intensities of the QD films was observed after thermal annealing at 180 °C for 5 min.
Bowen Zhang   +8 more
doaj   +1 more source

Plasma Processing of III-V Materials for Energy Efficient Electronics Applications [PDF]

open access: yes, 2017
This paper reviews some recent activity at the James Watt Nanofabrication Centre in the University of Glasgow in the area of plasma processing for energy efficient compound semiconductor-based transistors.
Fu, Yen-Chun   +4 more
core   +1 more source

Fabrication of amorphous Al2O3 optical film with various refractive index and low surface roughness

open access: yesMaterials Research Express, 2020
Alumina(Al _2 O _3 ) thin film has been widely used in many applications due to its excellent properties, especially in optical films and semiconductor industries.
Yunping Lan   +5 more
doaj   +1 more source

NO2 Adsorption Sensitivity Adjustment of As/Sb Lateral Heterojunctions through Strain: First Principles Calculations

open access: yesCrystals, 2023
Strain engineering is an effective way to adjust the sensing properties of two-dimensional materials. In this paper, lateral heterojunctions (LHSs) based on arsenic and antimony have been designed along the armchair (AC) or zigzag (ZZ) edges.
Li Yang   +7 more
doaj   +1 more source

Different JFET Designs on Conduction and Short-Circuit Capability for 3.3 kV Planar-Gate Silicon Carbide MOSFETs

open access: yesIEEE Journal of the Electron Devices Society, 2020
Both large current capability and strong short-circuit (SC) ruggedness are necessary for 3.3 kV SiC MOSFETs to improve system efficiency and reduce costs in industrial and traction applications.
Ximing Chen   +9 more
doaj   +1 more source

Band structural and absorption characteristics of antimonene/bismuthene monolayer heterojunction calculated by first-principles

open access: yesFrontiers in Chemistry, 2022
The band gap of lateral heterojunctions (LHSs) can be continuously tuned by changing the widths of their components. In this work, Sb/Bi LHSs based on monolayer Sb and Bi atoms with armchair and zigzag interfaces are constructed, respectively.
Yanyan Zhan   +7 more
doaj   +1 more source

Combined High Power and High Frequency Operation of InGaAsP/InP Lasers at 1.3μm [PDF]

open access: yes, 1990
A simultaneous operation of a semiconductor laser at high power and high speed was demonstrated in a buried crescent laser on a P-InP substrate. In a cavity length of 300μm, a maximum CW power of 130mW at room temperature was obtained in a junction-up ...
Bar-Chaim, N.   +4 more
core   +1 more source

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