Results 21 to 30 of about 137 (95)
Thermoacoustic Instability in a Rijke Tube with a Distributed Heat Source
Journal of Thermodynamics, Volume 2015, Issue 1, 2015., 2015 A Rijke tube with a distributed heat source is investigated. Driven by the widely existing thermoacoustic instability in lean premixed gas turbine combustors, this work aims to explore the physicochemical underpinning and assist in the elucidation and analysis of this problem.
Xiaochuan Yang +3 more
wiley +1 more source
Influence of cutting frequency and height on phytoestrogen levels in red clover and white clover
Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.Abstract Phytoestrogens are a class of secondary compounds naturally produced by some forage legumes, including red clover (Trifolium pratense L.) and white clover (Trifolium repens L.). Previous research showed that phytoestrogens can have beneficial and negative effects on animal health and reproductive function.
Palash Mandal +4 more
wiley +1 more source
Discordancy of two common methods of measuring feather hydrophobicity
Journal of Avian Biology, Volume 2025, Issue 3, May 2025.Feather structure contributes greatly to a birds' ability to repel water, which is essential for thermoregulation and energy use. Water repellency of feathers has traditionally been inferred by measuring a structural index based on the distance between the feather radii and vane.
Sarah C. Deckel, Chad L. Seewagen
wiley +1 more source
IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.This paper proposes an observer‐based adaptive output‐feedback boundary control to stabilize the vibrations of the moving cage of a dual‐cable mining elevator. This system is comprised of two mechanically jointed winding drums that drive the two cables through the floating sheaves to lift the cage.
Elham Aarabi +2 more
wiley +1 more source
Research on Suppression of Vibration Caused by Combustion Pressure Pulsation in Aircraft Engines
Shock and Vibration, Volume 2024, Issue 1, 2024.Abnormal high‐energy narrowband signals appeared in the aircraft engine test. By analyzing the characteristics of the vibration signals and the pressure pulsation signals in the measurement point data of the engine, it can be speculated that the abnormal vibration energy of the engine is not related to the operation of rotating parts, which upends a ...
Liang Hong +6 more
wiley +1 more source
Journal of Low Frequency Noise, Vibration and Active ControlDue to the incurred damages to the combustors, large-amplitude self-sustained thermoacoustic oscillations are unwanted in many propulsion systems, such as liquid/solid rocket motors and aero-engines.
Kai Pang +4 more
doaj +1 more source
Shipin yu jixieObjectiveTo investigate the enhancement effect of self-excited thermoacoustic oscillation on the drying process of solid foods.MethodsA pulsating hot air drying device based on a Rijke tube resonator structure is designed.
ZHANG Han +4 more
doaj +1 more source
NUMERICAL MODELLING OF THERMOACOUSTIC PHENOMENON AS CONTRIBUTION TO THERMOACOUSTIC ENGINE MODEL
TASK Quarterly, 2010 The presented paper shows our first step into the numerical modelling of the thermoacoustic phenomenon. The thermoacoustic effect has a great application potential, for instance, in thermoacoustic engines or thermoacoustic mixture separation.
LESZEK REMIORZ +2 more
doaj
Journal of the Brazilian Chemical Society, 2002 The chemical percolation devolatilization model (CPD) was extended for the prediction of drying and devolatilization of coal particles in high intensity acoustic fields found in Rijke tube reactors.
Veras Carlos A. G. +2 more
doaj
Learning and Characterizing Chaotic Attractors of a Lean Premixed Combustor
EnergiesThis paper is about the characteristics of and a method to recognize the onset of limit cycle thermoacoustic oscillations in a gas turbine-like combustor with a premixed turbulent methane/air flame.
Sara Navarro-Arredondo, Jim B. W. Kok
doaj +1 more source