Results 41 to 50 of about 15,047 (298)
Meitan xuebaoThe utilization of high-speed jet technology to fracture coal bodies and construct gas flow channels within coal seams is a crucial method for enhancing coalbed methane recovery efficiency. The supercritical carbon dioxide (SC-CO2) jet enhances coal-seam
Jianping WEI +7 more
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A modified asymptotic method for a Van-der-Pol oscillator with large cubic restoring nonlinearity
Vietnam Journal of Mechanics, 2004 A modified asymptotic method is proposed and applied to evaluate the frequency of self-excited oscillation in a Van-der-Pol oscillator with large cubic restoring nonlinearity. The result obtained can be used for large enough nonlinearity.
Nguyen Van Dinh
doaj +1 more source
The process of the self-excited oscillation pulsed water jet formation.
, 2018 The process of the self-excited oscillation pulsed water jet formation.
Urso Campos (5429951) +2 more
core +1 more source
Advanced Functional Materials, EarlyView.The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett +19 more
wiley +1 more source
A combined oscillation cycle involving self-excited thermo-acoustic and hydrodynamic instability mechanisms [PDF]
, 2021 The paper examines the combined effects of several interacting thermo-acoustic and hydrodynamic instability mechanisms that are known to influence self-excited combustion instabilities often encountered in the late design stages of modern low-emission ...
D. Fredrich +5 more
core +1 more source
Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective
Advanced Functional Materials, EarlyView.Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk +3 more
wiley +1 more source
Experimental conditions of breaking oil shale with the self-excited oscillation pulsed jet nozzle.
, 2018 Experimental conditions of breaking oil shale with the self-excited oscillation pulsed jet nozzle.
Urso Campos (5429951) +2 more
core +1 more source
Shaping Matter with Acoustic Waves: From Particles to Functional Structures
Advanced Functional Materials, EarlyView.Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg +5 more
wiley +1 more source
Detecting Wheel Slip to Suppress Self-Excited Oscillations in Braking Mode
World Electric Vehicle JournalThe wheels of decelerating vehicles in braking mode roll with increased slip, up to complete lock-up, which is a negative phenomenon. This is effectively managed by the anti-lock braking system (ABS).
Aleksander V. Klimov +10 more
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Advanced Healthcare Materials, EarlyView.Packed hydrogel microfiber (PHM) materials consist of flexible and high aspect ratio hydrogel components that, as a bulk material, are simultaneously mechanically robust and dynamic. Cells cultured in or on PHM scaffolds can be influenced by topographical cues or interact with a dynamic environment that permits cell spreading and multicellular ...
M. Gregory Grewal +7 more
wiley +1 more source