Results 81 to 90 of about 10,628 (280)
Linear and nonlinear dynamics of cylindrically and spherically expanding detonation waves
, 2005 The nonlinear stability of cylindrically and spherically expanding detonation waves is investigated using numerical simulations for both directly (blast) initiated detonations and cases where the simulations are initialized by placing quasi-steady ...
Sharpe, G.J., Watt, S.D.
core +1 more source
ComputationThe propagation of detonation waves (i.e., supersonic combustion waves) in non-uniform gaseous mixtures has become a matter of interest over the past several years due to the development of rotating detonation engines.
Alexander Lopato, Pavel Utkin
doaj +1 more source
Advanced Science, EarlyView.Ultrathin oxide layer and ultraviolet absorbent are introduced into polyhedral oligomeric silsesquioxane (POSS) polyimide to improve the transmittance conservation and realize near zero mass loss against ultraviolet and atomic oxygen exposures. The POSS polyimide composite sealed triple‐junction GaAs thin‐film solar cell exhibits enhanced endurance of ...
Min Qian +3 more
wiley +1 more source
An exact particle method for scalar conservation laws and its application to stiff reaction kinetics
, 2010 An "exact" method for scalar one-dimensional hyperbolic conservation laws is presented. The approach is based on the evolution of shock particles, separated by local similarity solutions.
Farjoun, Yossi, Seibold, Benjamin
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Reaction Mechanism, Challenges, and Strategies of High‐Energy‐Density Sodium‐Ion Batteries
Advanced Science, EarlyView.Focusing on high‐energy‐density sodium‐ion batteries, this review highlights the advantages offered by conversion‐type cathode materials. The currently studied cathode materials are systematically introduced. By analyzing sulfur, oxygen, and transition metal halides and other conversion‐type cathodes, the key challenges associated with these cathodes ...
Dan Yu +8 more
wiley +1 more source
Crack propagation and coalescence mechanism of double-hole cumulative blasting in coal seam
工程科学学报, 2020 This paper focuses on the radius of coal failure zones under cumulative blasting with shaped charge. Based on the analysis of the mutual superposition effect of the explosion stress waves during the simultaneous detonation of two blastholes, a numerical ...
De-yong GUO +3 more
doaj +1 more source
Advanced Science, EarlyView.Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma +4 more
wiley +1 more source
Monolithic 3D Printing of Origami‐Inspired Soft Robotics from Sustainable Bio‐Based Resin
Advanced Science, EarlyView.This work develops a photocurable, bio‐based resin from soybean oil for the monolithic fabrication of sustainable soft robots via Digital Light Processing. An origami‐inspired, vacuum‐actuated soft gripper is designed and fabricated, enabling reliable operation despite the material's lower elongation.
Ramin Montazeri +6 more
wiley +1 more source
Nebular Spectra and Explosion Asymmetry of Type Ia Supernovae
, 2009 The spectral signatures of asymmetry in Type Ia Supernova (SN Ia) explosions are investigated, using a sample of late-time nebular spectra. First, a kinematical model is constructed for SN Ia 2003hv, which can account for the main features in its optical,
Axelrod +50 more
core +1 more source
Advanced Science, EarlyView.Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas +6 more
wiley +1 more source