Results 11 to 20 of about 138,580 (269)

Flame extinctions: Critical stretch rates and sizes [PDF]

open access: yesCombustion and Flame, 2020
The paper reports how experimental data from a fan-stirred explosion vessel have extended the boundary of the previously defined regime, within which stable premixed turbulent combustion occurs. It also defines the properties of the bordering regime of turbulent flame quenching.
Bradley, D   +3 more
openaire   +2 more sources

Critical Frequency and Critical Stretching Rate for Reorientation of Cells on a Cyclically Stretched Polymer in a Microfluidic Chip

open access: yesACS Applied Materials & Interfaces, 2021
The ability of cells to sense and respond to mechanical signals from their surrounding microenvironments is one of the key issues in tissue engineering and regeneration, yet a fundamental study of cells with both cell observation and mechanical stimulus is challenging and should be based upon an appropriate microdevice.
Tianjiao Mao   +6 more
openaire   +3 more sources

The effects of flame orientation and mean shear on flame stretch in highly turbulent premixed flames using DNS

open access: yesApplications in Energy and Combustion Science, 2022
In the present work, direct numerical simulation data of a laboratory-scale high Karlovitz number (Ka) jet flame with a strong mean shear and a high Ka freely propagating planar flame without a mean shear were analyzed to explore the influence of flame ...
Tingquan Tian   +3 more
doaj   +1 more source

GHz Optical Time-Stretch Microscopy by Compressive Sensing

open access: yesIEEE Photonics Journal, 2017
Optical time-stretch microscopy has recently attracted intensive attention for its capability of acquiring images at an ultrahigh frame rate. Unfortunately, its achievable frame rate is limited by the requirement of having no overlap between consecutive ...
Cheng Lei   +9 more
doaj   +1 more source

MAPK activation modulates permeability of isolated rat alveolar epithelial cell monolayers following cyclic stretch. [PDF]

open access: yesPLoS ONE, 2010
We cultured (5 days) rat alveolar epithelial cells to investigate the role of mitogen-activated protein kinase (MAPk) signaling in ventilator induced epithelial barrier dysfunction. Cells were stretched to a magnitude of 12% or 37% change in surface area
Taylor S Cohen   +3 more
doaj   +1 more source

Detection of stretch reflex onset based on empirical mode decomposition and modified sample entropy

open access: yesBMC Biomedical Engineering, 2019
Background Accurate spasticity assessment provides an objective evaluation index for the rehabilitation treatment of patients with spasticity, and the key is detecting stretch reflex onset.
Mingjia Du   +5 more
doaj   +1 more source

Context-Aware Image Compression. [PDF]

open access: yesPLoS ONE, 2016
We describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals.
Jacky C K Chan   +3 more
doaj   +1 more source

Oxygen combustion of CH4-CO2 mixture in a small-scale counterflow burner

open access: yesJournal of Thermal Science and Technology, 2018
Oxygen combustion of CH4-CO2 mixture in a small-scale counterflow burner was studied. A diffusion flame was stabilized in the gap between opposed ports ejecting fuel and oxygen gases, and its thickness which depended on the gap distance between burner ...
Satoshi KADOWAKI   +5 more
doaj   +1 more source

Characteristics of biogas-oxygen micro counterflow diffusion flames

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The characteristics of biogas-oxygen diffusion flames were experimentally investigated using small counterflow burners, where the apparent equivalence ratio was set to unity.
Satoshi KADOWAKI   +3 more
doaj   +1 more source

Stretching rates and equivalent length near the tropopause [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2003
Diagnostics of mixing in the upper troposphere/lower stratosphere region reveal interesting seasonal and interannual variability and illustrate how the subtropical tropopause can be identified with a region of minimum mixing, a partial barrier to the transport of air between the troposphere and stratosphere.
Scott, R.-K.   +3 more
openaire   +3 more sources

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