Results 31 to 40 of about 282,219 (299)

Characterization of tapered diode laser bars for the use in high power diode laser systems

open access: yes, 2022
S.56-64For further development in beam quality of high power diode laser systems a new type of diode laser bars has been realized recently. Compared to commercially available broad area diode laser bars the lateral design of tapered diode laser bars ...
Rotter, K.   +5 more
core   +1 more source

Dual-band frequency reconfigurable 5G microstrip antenna

open access: yesJurnal Ilmiah SINERGI, 2023
Microstrip Antenna is widely developed and used in modern telecommunications equipment because of its advantages. Microstrip antenna is also used in 5G development which is expected to increase communication capacity and also be able to provide very ...
Yusnita Rahayu   +2 more
doaj   +1 more source

Integration of a resonant tunneling diode and an optical communications laser [PDF]

open access: yes, 2006
We report on the first integration of a resonant tunneling diode and an optical communications laser operating at around 1.5 /spl μm.
Stanley, CR   +14 more
core   +1 more source

Three dimentional control of a diode based laser cutter [PDF]

open access: yes, 2014
Includes bibliographical referencesLaser cutting is a widely used technology in many areas of industry and research. Conventional laser cutters only offer control of two axes and either cut through a material or rudimentary control of the third dimension
Frost, Phillip John Lowne
core   +1 more source

Study on Calculation Method of Transient Temperature of IGBT in Metro Vehicles

open access: yes机车电传动, 2021
The physical structure of IGBT module package was introduced, and the main mechanism of chip failure caused by heat shock was analyzed. The main transfer path of chip heat loss was analyzed, the transient heat-transfer model of each link of heat transfer
Wenjie ZENG   +5 more
doaj  

Recent research progress of SiC superjunction devices

open access: yes机车电传动, 2023
Because of its excellent physical and chemical properties, silicon carbide (SiC) is suitable for manufacturing semiconductor devices working under high temperature and high power.
ZHANG Jinping   +4 more
doaj  

Luminance and chromaticity characteristics of different phosphor types in laser lighting

open access: yesJPhys Photonics
Laser lighting is emerging as a viable replacement for other light sources in applications requiring high luminance not achievable with LEDs. Phosphor materials for laser lighting are often optimized in terms of luminous efficiency and/or colorimetric ...
Ole Bjarlin Jensen   +4 more
doaj   +1 more source

Three realizations of one neuron: variation of behavior regimes for a electronic generator of neuron-like activity in a hardware experiment [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this work is to compare dynamical modes in the ensemble of hardware electronic generators of neuron-like activity with dynamical modes in SPICE simulator and mathematical model in order to detect whether the difference in oscillation ...
Takaishvili, Lev Vyacheslavovich   +4 more
doaj   +1 more source

USP29‐regulated noncanonical stabilization of the hypoxia‐inducible factor‐α in aggressive prostate cancer

open access: yesMolecular Oncology, EarlyView.
We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober   +16 more
wiley   +1 more source

Thickness Study of Ga2O3 Barrier Layer in p-Si/n-MgZnO:Er/Ga2O3/ZnO:In Diode

open access: yesCrystals, 2023
The p-Si/n-MgZnO:Er/Ga2O3/ZnO:In diodes with different Ga2O3 thicknesses were fabricated through spray pyrolysis deposition at 450 °C with aqueous solutions containing magnesium nitrate, zinc acetate, erbium acetate, gallium nitrate, and indium nitrate ...
Shih-Wei Ying   +4 more
doaj   +1 more source

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