Results 61 to 70 of about 3,416 (181)

Stability switching behavior of thermoacoustic oscillation in Rijke tube

Acta Physica Sinica, 2018
Large-amplitude self-excited thermoacoustic oscillations arising due to the interaction between unsteady heat release and acoustic pressure fluctuations have been encountered in many thermal devices. These oscillations may lead to unwanted structural vibrations and efficiency reduction while emitting loud noises, and thus the predicting of such ...
null Dang Nan-Nan, null Zhang Zheng-Yuan, null Zhang Jia-Zhong   +2 more
openaire   +1 more source

Nonlinear analytical flame models with amplitude-dependent time-lag distributions [PDF]

, 2017
In the present work, we formulate a new method to represent a given Flame Describing Function by analytical expressions. The underlying idea is motivated by the observation that different types of perturbations in a burner travel with different speeds ...
Bigongiari, A, Gopinathan, S, Heckl, MA, Iurashev, D   +3 more
core   +1 more source

Physical Acoustics [PDF]

, 1962
Contains research objectives and reports on three research projects.U. S.
Gentle, K. W., Ingard, K. Uno, Maling, G. C., Jr.   +2 more
core  

Physical Acoustics [PDF]

, 1961
Contains reports on six research projects.National Science Foundation (Grant G-9330)United States Navy, Office of Naval Research (Contract Nonr-1841(42)
Ball, N. A., Dean, L. W., III, Ingard, K. Uno, Maling, G. C., Jr., Wiley, D. S.   +4 more
core  

Immunological and Physiological Differences Between Layer- and Broiler Chickens after Concurrent Intratracheal Administration of Lipopolysaccharide and Human Serum Albumin [PDF]

, 2010
Layers and broilers were concurrently intratracheally challenged with 0.5 mg Lipopolysaccharide (LPS) and 0.1 mg Human Serum Albumin (HuSA) at 3 weeks of age.
Freke, P., Koopmanschap, R.E., Lammers, A., Parmentier, H.K., Vries Reilingh, G., de   +4 more
core   +1 more source

Fokker–Planck modeling of the stochastic dynamics of a Rijke tube

Chaos: An Interdisciplinary Journal of Nonlinear Science
We derive and numerically validate a low-order oscillator model to capture the stochastic dynamics of a prototypical thermoacoustic system (a Rijke tube) undergoing a subcritical Hopf bifurcation in the presence of additive noise. We find that on the fixed-point branch before the bifurcation, the system is dominated by the first duct mode, and the ...
Minwoo Lee, Vikrant Gupta, Larry K. B. Li   +2 more
openaire   +3 more sources

Salivary inflammatory biomarkers during initial orthodontic tooth movement [PDF]

, 2016
BACKGROUND: Orthodontic tooth movement is a complex process involving a number of inflammatory and anabolic/catabolic pathways. Further, successful treatment depends on proper timing of orthodontic measures with regard to patient’s growth spurt ...
Serrenho, Ana
core   +1 more source

Sensitivity of combustion driven damage mechanisms to instability [PDF]

, 2011
A multi-disciplinary framework is developed to evaluate the damage on gas turbine engine liners including interrelated sub-domains such as combustion dynamics, stress, modal, fracture mechanics analyses and life assessment.
Altunlu, A. Can, Boer, André de, Hoogt, Peter van der   +2 more
core   +1 more source

Characterization of Laboratory Flow and Performance for Process Improvements via Application of Process Mining. [PDF]

Appl Clin Inform, 2023
Tsai ER, Tintu AN, Boucherie RJ, de Rijke YB, Schotman HHM, Demirtas D.   +5 more
europepmc   +1 more source

Stabilization of acoustic modes using Helmholtz and Quarter-Wave resonators tuned at exceptional points

, 2018
Acoustic dampers are efficient and cost-effective means for suppressing thermoacoustic instabilities in combustion chambers. However, their design and the choice of their purging air mass flow is a challenging task, when one aims at ensuring ...
Bourquard, Claire, Noiray, Nicolas
core   +1 more source