Results 81 to 90 of about 61,419 (308)

Extrapolation of laminar flame speeds from stretched flames: Role of finite flame thickness [PDF]

Proceedings of the Combustion Institute, 2017
Abstract Recognizing the persistent inaccuracy of existing linear and nonlinear expressions to extract laminar flame speeds from experimental data of stretched flame speeds, and the essential and independent role of the flame thickness, in addition to the laminar flame speed, in describing the coupled diffusive and reactive response of the laminar ...
Wenkai Liang, Fujia Wu, Chung K. Law
openaire   +1 more source

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

Advanced 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, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

Large-Eddy Simulation and experimental study of cycle-to-cycle variations of stable and unstable operating points in a spark ignition engine [PDF]

, 2012
This article presents a comparison between experiments and Large-Eddy Simulation (LES) of a spark ignition engine on two operating points: a stable one characterized by low cycle-to-cycle variations (CCV) and an unstable one with high CCV.
Dugué, Vincent, Enaux, Benoît, Granet, Victor, Lacour, Corine, Poinsot, Thierry, Vermorel, Olivier   +5 more
core   +3 more sources

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

Advanced 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, Jon Maiz, Viktor Petrenko, Amaia Iturrospe, Josu Fernández Maestu, José María Porro, Mariano Barrado, Laura Casado, Joachim Kohlbrecher, Petr Shvets, Evgeny Modin, Ana Sofia Castro, Andrey Chuvilin, José María De Teresa, Daniela M. Correia, Arantxa Arbe, Senentxu Lanceros‐Méndez   +16 more
wiley   +1 more source

Generation of adverse pressure gradient in the circumferential flashback of a premixed flame [PDF]

, 2016
Circumferential upstream propagation of a premixed flame in a region confined between two concentric tubes is considered. The cold flow in this configuration features rotational motion and the flame is modelled as an interface separating the burned and ...
Brown, Phillip, Dreizler, Andreas, Karimi, Nader, McGrath, Stephen, Weinkauff, Johannes   +4 more
core   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced 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, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Laminar Flame Characteristics of C1–C5 Primary Alcohol-Isooctane Blends at Elevated Temperature

Energies, 2016
The laminar combustion characteristics of blends of isooctane and C1–C5 primary alcohols (i.e., methanol, ethanol, n-propanol, n-butanol and n-pentanol) were investigated using the spherical expanding flame methodology in a constant volume chamber at ...
Qianqian Li, Wu Jin, Zuohua Huang
doaj   +1 more source

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

Advanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

Numerical Investigation on the Flame Characteristics of Lean Premixed Methane Flame Piloted with Rich Premixed Flame

Energies
The introduction of the pilot flame can stabilize the lean premixed flame and promote its industrial application. However, the interaction mechanism between the pilot and main flames is complicated.
Lili Zhang, Yongzhang Cui, Pengfei Yin, Wenlong Mao, Pengzhao Zhang   +4 more
doaj   +1 more source

Stability of a premixed flame in stagnation-point flow against general disturbances [PDF]

Previously, the stability of a premixed flame in a stagnation flow was discussed for a restricted class of disturbances that are self-similar to the basic undisturbed flow; thus, flame fronts with corrugations only in the cross stream direction were ...
Jackson, Thomas L., Matalon, Moshe
core   +1 more source