Results 51 to 60 of about 44,846 (260)

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

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

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

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

Weakly‐Coordinating Non‐Fluorinated Diluents for Local High‐Concentration Electrolytes in Advanced Lithium Metal Batteries

open access: yesAdvanced Materials, EarlyView.
This perspective critically evaluates non‐fluorinated diluents in local high‐concentration electrolytes, categorizing their solvation behavior, interfacial mechanisms, and sustainability potential to guide future electrolyte design for lithium metal batteries.
Yin Cui   +8 more
wiley   +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

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

open access: yesAdvanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh   +9 more
wiley   +1 more source

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

open access: yesAdvanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya   +11 more
wiley   +1 more source

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