Results 61 to 70 of about 46,903 (297)

Influence of Local Accumulation of Polyethylene Dust Cloud on Flame Propagation

open access: yesChemical Engineering Transactions, 2019
The flame propagation characteristic of polyethylene dust cloud inside a semi-open tube is studied in virtue of high-speed photographing technology. The rules of the influence of initial distribution range of polyethylene dust cloud on flame speed and ...
Lei Pang   +4 more
doaj   +1 more source

Research on explosion characteristics and consequences of compressor room in compressor station of long-distance natural gas pipeline

open access: yesCase Studies in Thermal Engineering, 2022
As the core place in the compressor station, the compressor room has the possibility of gas leakage and explosion during its operation. In this paper, an equal proportional physical model is established based on FLCAS software, the effects of different ...
Yuan Ren   +5 more
doaj   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

The slingshot effect: a possible new laser-driven high energy acceleration mechanism for electrons

open access: yes, 2014
We show that under appropriate conditions the impact of a very short and intense laser pulse onto a plasma causes the expulsion of surface electrons with high energy in the direction opposite to the one of propagation of the pulse.
de Angelis, Umberto   +2 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

Impact of Radiative Losses on Flame Acceleration and Deflagration to Detonation Transition of Lean Hydrogen-Air Mixtures in a Macro-Channel with Obstacles

open access: yesFluids, 2018
While there has been some recognition regarding the impact of thermal boundary conditions (adiabatic versus isothermal) on premixed flame propagation mechanisms in micro-channels (hydraulic diameters <10 mm), their impact in macro-channels has often ...
Gautham Krishnamoorthy   +1 more
doaj   +1 more source

A localised subgrid scale model for fluid dynamical simulations in astrophysics II: Application to type Ia supernovae

open access: yes, 2006
The dynamics of the explosive burning process is highly sensitive to the flame speed model in numerical simulations of type Ia supernovae. Based upon the hypothesis that the effective flame speed is determined by the unresolved turbulent velocity ...
Hillebrandt, W.   +3 more
core   +1 more source

Resolving Complex Multiscale Structure of Magneto‐ and Electroactive Polymer Composites With an Ionic Liquid

open access: yesAdvanced Materials, EarlyView.
Multiscale ionic liquid segregation into nano‐sized domains in the unconfined amorphous polymer phase and into micron‐sized pores enables a coupled magneto‐ and electroactive responses. ABSTRACT A multiscale understanding of the structure of ionogels – nanoparticle‐free polymer composites incorporating ionic liquids – is essential for enhancing their ...
Andrey Shibaev   +16 more
wiley   +1 more source

Large eddy simulation and calculation of propagation characteristics of hydrogen flame under obstacle conditions

open access: yesYou-qi chuyun
[Objective] Compared with conventional gas fuel, hydrogen is more susceptible to explosion. Meanwhile, the existence of obstacles notably stimulates hydrogen combustion and accelerates flame propagation, causing more serious consequences of accidents. To
LI Xiang   +6 more
doaj   +1 more source

Numerical Simulation of Hot Jet Detonation with Different Ignition Positions

open access: yesApplied Sciences, 2019
Ignition position is an important factor affecting flame propagation and deflagration-to-detonation transition (DDT). In this study, 2D reactive Navier−Stokes numerical studies have been performed to investigate the effects of ignition position on ...
Hongtao Zheng   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy