Results 51 to 60 of about 400,401 (312)

Improvement of Measuring Stability of Amplitude Attenuation by the Bubble in Ultrasonic Flow-Meter for Semiconductor Process [PDF]

open access: yes한국정밀공학회지, 2019
Various chemicals are used for semiconductor process. In particular, the most important element in the etching and cleaning process is chemical liquid. An ultrasonic flow meter is used to monitor the supplying amount of chemical solution.
Il Jin Bae, Eung Suk Lee
doaj   +1 more source

Effect of the Inclined Part Length of an Inclined Blade on the Cavitation Characteristics of Vortex Pumps

open access: yesMachines, 2022
To study the effect of the length of the second inclined section of the inclined vane on the vortex structure and pressure distribution inside a vortex pump, this paper uses a combination of numerical simulations (CFD) and experimental verification ...
Zhuofan Yin   +7 more
doaj   +1 more source

Numerical study on dual-frequency ultrasonic enhancing cavitation effect based on bubble dynamic evolution.

open access: yesUltrasonics sonochemistry, 2019
Ultrasonic cavitation is a physical dynamic phenomenon of bubbles inflation, compression, and collapse in liquid. A dual-frequency ultrasonic cavitation dynamics model is established in this paper to investigate dynamic evolution of bubble under single ...
Linzheng Ye, Xijing Zhu, Yao Liu
semanticscholar   +1 more source

Bubble properties of heterogeneous bubbly flows in a square bubble column [PDF]

open access: yesAIP Conference Proceedings, 2010
The present work focuses on the measurements of bubble properties in heterogeneous bubbly flows in a square bubble column. A four-point optical fibre probe was used for this purpose. The accuracy and intrusive effect of the optical probe was investigated first.
W. Bai   +7 more
openaire   +2 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Symmetry Approach in the Evaluation of the Effect of Boundary Proximity on Oscillation of Gas Bubbles

open access: yesFluids, 2018
The purpose of the present review is to describe the effect of an interface between media with different mechanical properties on the acoustic response of a gas bubble.
Alexey Maksimov
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Study on Bubble Absorption Characteristics of R134a-DMF in Vertical Tube

open access: yesZhileng xuebao, 2022
To study the heat and mass transfer characteristics of an R134a-DMF (Dimethylformamide) bubble absorption process in a vertical tube, an experimental device for bubble absorption in a vertical tube was fabricated, and a mathematical model of heat and ...
Kong Xiangqiang, Li Huazhao, Li Jianbo
doaj  

A Silica Capillary-Based Sensor with Access Channels for the Simultaneous Measurement of Pressure and Temperature

open access: yesPhotonics, 2023
A hybrid fiber sensor for the simultaneous measurement of pressure and temperature is proposed. The sensor is constituted of a section of silica capillary tube (SCT) whereat access channels are created with two different methods: instilling a bubble on ...
João P. Santos   +3 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

open access: yesFEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento   +6 more
wiley   +1 more source

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