Results 31 to 40 of about 94,167 (304)

Surface-Duct Propagation-Loss Measurements [PDF]

The Journal of the Acoustical Society of America, 1973
The surface duct is the mixed-layer underwater sound channel generally bounded by the ocean surface and the thermocline. In a recent experiment, abundant measurements of surface-duct propagation loss were made concurrently with detailed environmental sampling.
openaire   +1 more source

Analytic mode-matching for acoustic scattering in three dimensional waveguides with flexible walls: Application to a triangular duct

, 2012
This is the post-print version of the Article. The official published version can be accessed from the links below - Copyright @ 2012 ElsevierAn analytic mode-matching method suitable for the solution of problems involving scattering in three-dimensional
Lawrie, JB
core   +1 more source

Modeling sound propagation in acoustic waveguides using a hybrid numerical method [PDF]

, 2008
Sound propagation in an acoustic waveguide is examined using a hybrid numerical technique. Here, the waveguide is assumed to be infinite in length with an arbitrary but uniform cross-section.
Kirby, R, Ray Kirby
core   +1 more source

Wide range lower atmosphere duct parameter inversion from automatic identification system signals using hybrid strategy artificial lemming algorithm

Frontiers in Marine Science
Lower atmospheric ducts significantly alter the propagation of Very High Frequency (VHF) and higher-frequency electromagnetic waves in the marine boundary layer, critically impacting radar and communication systems. Effective duct monitoring is essential
Ting Ting Fu, Ting Ting Fu, Hao Cha, Yu Luo, Hong Wei Fu, Yu Zhang, Bin Tian   +6 more
doaj   +1 more source

Reflection of an acoustic line source by an impedance surface with uniform flow

, 2014
An exact analytic solution is derived for the 2D acoustic pressure field generated by a time-harmonic line mass source located above an impedance surface with uniform grazing flow. Closed-form asymptotic solutions in the far-field are also provided.
Gabard, Gwénaël, Brambley, E.J., Gabard, G., Brambley, E. J.   +3 more
core   +1 more source

A comparison of impedance boundary conditions for flow acoustics [PDF]

, 2013
Acoustic liners remain a key technology for reducing community noise from aircraft engines. The choice of optimal impedance relies heavily on the modeling of sound absorption by liners under grazing flows.
Gabard, G.
core   +1 more source

Heterogeneity of SOX9 and HNF1β in Pancreatic Ducts Is Dynamic

Stem Cell Reports, 2018
Summary: Pancreatic duct epithelial cells have been suggested as a source of progenitors for pancreatic growth and regeneration. However, genetic lineage-tracing experiments with pancreatic duct-specific Cre expression have given conflicting results ...
Habib Rezanejad, Limor Ouziel-Yahalom, Charlotte A. Keyzer, Brooke A. Sullivan, Jennifer Hollister-Lock, Wan-Chun Li, Lili Guo, Shaopeng Deng, Ji Lei, James Markmann, Susan Bonner-Weir   +10 more
doaj   +1 more source

On acoustic propagation in three-dimensional rectangular ducts with flexible walls and porous linings

, 2012
This is the post-print version of the Article. The official published version can be accessed from the links below - Copyright @ 2012 Acoustical Society of AmericaThe focus of this article is toward the development of hybrid analytic-numerical mode ...
Lawrie, JB, Jane B. Lawrie
core   +1 more source

Numerical analysis of viscid compressible ionic flow [PDF]

, 2006
The aim of the paper is to investigate numerically the effect of a DC positive corona discharge between two parallel wire electrodes of different diameter along an insulating aerofoil surface in low subsonic compressible flow.
Tulita, C., Raghunathan, Srinivasan, Tulita, Catalin, Benard, Emmanuel   +3 more
core   +1 more source

Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source