Results 21 to 30 of about 31,871 (287)

Gaussian-Linearized Transformer with Tranquilized Time-Series Decomposition Methods for Fault Diagnosis and Forecasting of Methane Gas Sensor Arrays

open access: yesApplied Sciences, 2023
Methane is considered as a clean energy that is widely used in places with high environmental requirements. The increasing demand for methane exploration in polar and deep sea extreme environments has a positive role in carbon neutrality policies.
Kai Zhang   +7 more
doaj   +1 more source

Collimation Sensing With Differential Grating and Talbot Interferometry

open access: yesIEEE Photonics Journal, 2014
The collimation of monochromatic light in optical metrology is of great importance for its determination of the accuracy of physical measurement. This paper proposes a novel collimation testing method with the differential grating (DG) characterized by ...
Nan Wang   +4 more
doaj   +1 more source

Biosynthesis and Antibacterial Activity of Silver Nanoparticles Using Yeast Extract as Reducing and Capping Agents

open access: yesNanoscale Research Letters, 2020
Biosynthesis for the preparation of antimicrobial silver nanoparticles (Ag NPs) is a green method without the use of cytotoxic reducing and surfactant agents.
Mengjun Shu   +8 more
doaj   +1 more source

Teoretical models of laser microfabrication processes. [PDF]

open access: yes, 2020
Teoretical Models of Laser Microfabrication ...
Lukošiūnas, Julius,
core  

Topography Measurement of Large-Range Microstructures through Advanced Fourier-Transform Method and Phase Stitching in Scanning Broadband Light Interferometry

open access: yesMicromachines, 2017
Scanning broadband light interferometry (SBLI) has been widely utilized in surface metrology due to its non-contact and high-accuracy method. In SBLI, phase evaluation through Fourier Transform (FT) is a prevalent and efficient technique, where the ...
Yi Zhou, Yan Tang, Yong Yang, Song Hu
doaj   +1 more source

A High Quantum Efficiency Narrow-Band UV-B AlGaN p-i-n Photodiode With Polarization Assistance

open access: yesIEEE Photonics Journal, 2021
We designed and fabricated narrow-band UV-B AlGaN p-i-n photodiodes (PDs) with a full-width at half-maximum (FWHM) of 8 nm by optimizing the Al composition and thickness of the AlGaN layers. To improve the photoelectric response of the narrow-band PDs, a
Qianyu Hou   +10 more
doaj   +1 more source

Polymer microfluidic devices: an overview of fabrication methods

open access: yesU.Porto Journal of Engineering, 2015
The amount of applications associated with microfluidic devices is increasing since the introduction of Lab-on-a-chip devices in the 1990s, especially regarding biomedical and clinical fields.
Raquel O. Rodrigues   +3 more
doaj   +1 more source

Microfluidics without microfabrication [PDF]

open access: yesProceedings of the National Academy of Sciences, 2003
Microfluidic devices create spatially defined, chemically controlled environments at microscopic dimensions. We demonstrate the formation and control of microscopic hydrodynamic and chemical environments by impinging a low-intensity acoustic oscillation on a cylindrical electrode.
Barry R, Lutz   +2 more
openaire   +2 more sources

Microfabrication of metals with bursts of femtosecond laser pulses. [PDF]

open access: yes, 2020
Microfabrication of Metals with Bursts of Femtosecond Laser ...
Eičas, Laurynas,
core  

Microfabrication of the Ammonia Plasma-Activated Nickel Nitride− Nickel Thin Film for Overall Water Splitting in the Microfluidic Membraneless Electrolyzer [PDF]

open access: yes, 2021
Hydrogen production in the microfluidic alkaline membraneless electrolyzer (μAME) marks a new paradigm in sustainable energy technology. One challenge in this field is implementing a bifunctional catalyst to catalyze hydrogen evolution reaction and ...
Microfabrication of the Ammonia Plasma-Activated Nickel Nitride–Nickel Thin Film for Overall Water Splitting in the Microfluidic Membraneless Electrolyzer
core   +1 more source

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