Results 51 to 60 of about 186,237 (325)

Computational analysis of flow-driven string dynamics in a pump and residence time calculation

IOP Conference Series: Earth and Environment, 2019
We present computational analysis of flow-driven string dynamics in a pump and the related residence time calculation. The objective in the study is to understand how the strings carried by a fluid interact with the pump surfaces, including the blades ...
Kenji Komiya, Taro Kanai, Yuto Otoguro, M. Kaneko, K. Hirota, Y. Zhang, K. Takizawa, T. Tezduyar, M. Nohmi, T. Tsuneda, Masahito Kawai, Isono Miho   +11 more
semanticscholar   +1 more source

Design and simulation of gas burner ejectors

Carbon Resources Conversion, 2021
Ignition within gas burner ejectors can lead to off design conditions and has significant influence on the burner behavior. Thus ignition in the ejector should be prevented. In the present study the influence of combustion reactions on the performance of
Mario Pichler, Florian Wesenauer, Christian Jordan, Stefan Puskas, Bernhard Streibl, Franz Winter, Michael Harasek   +6 more
doaj   +1 more source

Hydrodynamic and solid residence time distribution in a circulating fluidized bed: experimental and 3D computational study [PDF]

, 2008
Vertical profiles of local pressure, horizontal profiles of net vertical solid mass flux, and residence time distributions (RTD) of the solid phase are experimentally assessed in the riser of a small scale cold Circulating Fluidized Bed of 9 m high ...
Andreux, Régis, Hemati, Mehrdji, Petit, Geoffrey, Simonin, Olivier   +3 more
core   +2 more sources

Marine Bioluminescence: Simulation of Dynamics within a Pump-Through Bathyphotometer

Sensors
Bioluminescence is light produced by organisms through chemical reactions. In most cases, bioluminescent organisms produce light in response to mechanical stimulation, including from shear around objects moving in the water.
Austin Thombs, Igor Shulman, Silvia Matt
doaj   +1 more source

Demonstration of Patient-Specific Simulations to Assess Left Atrial Appendage Thrombogenesis Risk

Frontiers in Physiology, 2021
Atrial fibrillation (AF) alters left atrial (LA) hemodynamics, which can lead to thrombosis in the left atrial appendage (LAA), systemic embolism and stroke.
Manuel García-Villalba, Lorenzo Rossini, Alejandro Gonzalo, Alejandro Gonzalo, Davis Vigneault, Pablo Martinez-Legazpi, Eduardo Durán, Oscar Flores, Javier Bermejo, Elliot McVeigh, Elliot McVeigh, Andrew M. Kahn, Juan C. del Álamo, Juan C. del Álamo, Juan C. del Álamo, Juan C. del Álamo   +15 more
doaj   +1 more source

A global study of enhanced stretching and diffusion in chaotic tangles [PDF]

, 1991
A global, finite-time study is made of stretching and diffusion in a class of chaotic tangles associated with fluids described by periodically forced two-dimensional dynamical systems.
Beigle, Darin, Leonard, Anthony, Wiggins, Stephen   +2 more
core   +1 more source

Three Dimensional Model of Computational Fluid Dynamic to Predict Products Yield and Residence Time in Riser of FCC

Chemical Engineering Transactions, 2015
The fluid catalytic cracking (FCC) process is at the heart of a modern refinery oriented toward maximum commercial (gasoline and diesel) production. In order to describe the large number of components present in heavy distillates and the kinetic models that are able to predict the profiles of heavy and light chemical fractions in industrial risers, the
Helver Crispiniano Alvarez-Castro, Milton Mori, Waldir Pedro Martignoni, Raffaella Ocone   +3 more
openaire   +2 more sources

Functional Relationships between Kinetic, Flow, and Geometrical Parameters in a High-Temperature Chemical Microreactor. [PDF]

, 2018
Computational fluid dynamics (CFD) simulations and isothermal approximation were applied for the interpretation of experimental measurements of the C10H7Br pyrolysis efficiency in the high-temperature microreactor and of the pressure drop in the flow ...
Ahmed, M, Azyazov, VN, Kaiser, RI, Mebel, AM, Porfiriev, DP, Zagidullin, MV, Zavershinskiy, IP   +6 more
core   +3 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source