Results 71 to 80 of about 3,794,002 (328)

Experiment on oil and gas explosion of slender pipelines with different length-to-diameter ratios

open access: yesYou-qi chuyun, 2020
To study the law of oil & gas explosion overpressure and flame propagation of slender pipelines with large lengthto-diameter ratios in confined space in oil storage and transportation engineering, an oil and gas explosion experimental system for slender ...
Xinsheng JIANG   +5 more
doaj   +1 more source

Instabilities and soot formation in spherically expanding, high pressure, rich, iso-octane-air flames [PDF]

open access: yes, 2006
Flame instabilities, cellular structures and soot formed in high pressure, rich, spherically expanding iso-octane-air flames have been studied experimentally using high speed Schlieren cinematography, OH fluorescence, Mie scattering and laser induced ...
Al-Shahrany A S   +6 more
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

Evaluation of the Flame Lift-off Length in Diesel Spray Combustion Based on Flame Extinction

open access: yesJournal of Thermal Science and Technology, 2010
The interaction of spray and combustion processes forms a complex system of physical phenomena undergoing in IC engines. Studying this interaction is important to determine strategies for simultaneously reducing soot and NOx emissions from diesel engines.
Ulugbek AZIMOV   +3 more
doaj   +1 more source

Flame length measurements of the turbulent plume [PDF]

open access: yesPhysics of Fluids A: Fluid Dynamics, 1990
The minimum molecular scale mixing rate of the turbulent plume was found by measurements of the plume ‘‘flame length’’ under various initial conditions. A simple derivation based on the self-similar properties of plumes provides power law relations for the mixing rate, which agree well with the experiments.
openaire   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Path‐Decoupled Cation‐Eutaxy III–V van der Waals Memristive Semiconductors for Mitigating the Neuromorphic Accuracy‐Energy Trade‐off

open access: yesAdvanced Materials, EarlyView.
Path‐decoupled III–V van der Waals memtransistors spatially separate ionic and electronic transport to overcome the conventional trade‐off between accuracy and energy in neuromorphic hardware. Mobile K+ ions in the vdW gaps set a wide conductance window, Gmax/Gmin, while gate‐tunable hole conduction lowers programming energy, enabling reliable ...
Jihong Bae   +13 more
wiley   +1 more source

Effect of Nozzle Height on the Combustion Dynamics of Jet Fires in Rotating Flow Fields

open access: yesFire
In this paper, the effect of nozzle height on the combustion dynamics of jet fires in rotating flow fields (JFRFFs) is systematically investigated through experimental and numerical simulations.
Qiang Zhang   +7 more
doaj   +1 more source

Theoretical analysis of the conical premixed flame response to upstream velocity disturbances considering flame speed development effects

open access: yesPropulsion and Power Research, 2017
The effect of upstream velocity perturbations on the response of a premixed flame was investigated in terms of the flame transfer function dependency on excitation frequency.
Ghazaleh Esmaeelzade   +3 more
doaj   +1 more source

Laser ignition of iso-octane air aerosols [PDF]

open access: yes, 2008
Iso-octane aerosols in air have been ignited with a focused Nd:YAG laser at pressures and temperatures of 100kPa and 270K and imaged using schlieren photography. The aerosol was generated using the Wilson cloud chamber technique.
Lawes, M.   +3 more
core   +1 more source

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