Results 101 to 110 of about 503,944 (360)

Fluid dynamic regimes in circulating fluidized bed boilers—A mini-review

Chemical Engineering Science, 2022
Abstract The fluid dynamics in the furnaces of large-scale circulating fluidized bed (CFB) boilers are surprisingly little known in contrast to the many laboratory studies made on conditions related to chemical reactors. Two areas are surveyed in the present work: the bottom bed and the upper dilute zone of a furnace.
openaire   +2 more sources

Granular circulation in a cylindrical pan: simulations of reversing radial and tangential flows

, 2006
Granular flows due to simultaneous vertical and horizontal excitations of a flat-bottomed cylindrical pan are investigated using event-driven molecular dynamics simulations.
B. D. Lubachevsky, D. Bideau, H. El hor, John J. Drozd, M. D. Shattuck, O. R. Walton, Oleh Baran, Peter H. Poole, Robert J. Martinuzzi   +8 more
core   +1 more source

Aortic Wave Dynamics and Its Influence on Left Ventricular Workload [PDF]

, 2011
The pumping mechanism of the heart is pulsatile, so the heart generates pulsatile flow that enters into the compliant aorta in the form of pressure and flow waves.
Gharib, Morteza, Pahlevan, Niema M.
core   +4 more sources

Comprehensive profiling of lncRNAs and mRNAs enriched in small extracellular vesicles for early noninvasive detection of colorectal cancer: diagnostic panel assembly and extensive validation

Molecular Oncology, EarlyView.
Small extracellular vesicles are a promising source of diagnostic molecules. We conducted a comprehensive study, including transcriptome profiling and RT‐qPCR validation on large cohorts of samples. Diagnostic panels enabling sensitive detection of colorectal cancer and precancerous lesions were established. Some molecules were differentially expressed
Petra Vychytilova‐Faltejskova, Marketa Pavlikova, Lucie Pifkova, Robin Jugas, Tana Machackova, Lenka Radova, Milana Sachlova, Renata Bartosova, Tetiana Samoilenko, Zuzana Feckova, Jana Orlickova, Erika Slamova, Elleni Ponechal Michu, Dagmar Al Tukmachi, Michaela Ruckova, Martina Vodinska, Jan Kotoucek, Tina Catela Ivkovic, Marie Boudna, Lucia Bohovicova, Teodor Stanek, Jana Halamkova, Martin Svoboda, Vladimir Prochazka, Tomas Grolich, Zdenek Kala, Ondrej Slaby   +26 more
wiley   +1 more source

Climate dynamics and fluid mechanics: Natural variability and related uncertainties

, 2010
The purpose of this review-and-research paper is twofold: (i) to review the role played in climate dynamics by fluid-dynamical models; and (ii) to contribute to the understanding and reduction of the uncertainties in future climate-change projections. To
Allen, Andronov, Anishchenko, Anishchenko, Anishchenko, Arnold, Arnold, Arnold, Arnold, Arnol’d, Bak, Bak, Berger, Berloff, Bouchet, Caraballo, Cessi, Chang, Chang, Charney, Coayla-Teran, Cong, Cong, Crauel, Da Costa, Denjoy, Dijkstra, Dijkstra, Dijkstra, Duan, Duan, Dubar, Eckmann, Eric Simonnet, Farrel, Feigenbaum, Feliks, Feliks, Ghil, Ghil, Ghil, Ghil, Gill, Grebogi, Guckenheimer, Guckenheimer, Held, Hillerbrand, Jiang, Jiang, Jin, Jin, Jung, Kaijser, Katok, Katsman, Kloeden, Kondrashov, Kravtsov, Kuksin, Kuznetsov, Langa, Li, Lin, Lin, Lin, Lorenz, Madden, Mañé, McWilliams, Meacham, Michael Ghil, Mickaël D. Chekroun, Mitchell, Moron, Nadiga, Neelin, Newhouse, Oseledets, Palis, Palmer, Pedlosky, Pedlosky, Peixoto, Plaut, Poincaré, Pope, Primeau, Robbin, Robert, Robinson, Saunders, Sell, Sheremet, Simonnet, Simonnet, Simonnet, Simonnet, Simonnet, Simonnet, Sinai, Smale, Smale, Speich, Stainforth, Stommel, Sushama, Sverdrup, Trefethen, Tziperman, Tziperman, Williams, Wunsch, Zmarrou   +113 more
core   +1 more source

On the estimation of swimming and flying forces from wake measurements [PDF]

, 2005
The transfer of momentum from an animal to fluid in its wake is fundamental to many swimming and flying modes of locomotion. Hence, properties of the wake are commonly studied in experiments to infer the magnitude and direction of locomotive forces ...
Dabiri, John O.
core   +3 more sources

The critical role of DNA damage‐inducible transcript 4 (DDIT4) in stemness character of leukemia cells and leukemia initiation

Molecular Oncology, EarlyView.
Stemness properties, including quiescence, self‐renewal, and chemoresistance, are closely associated with leukemia relapse. Here, we demonstrate that DNA damage‐inducible transcript 4 (DDIT4) is induced in the hypoxic bone marrow niche and is essential for maintaining the stemness of AML1‐ETO9a leukemia cells.
Yishuang Li, Zhijie Cao, Haiyan Xing, Zhenya Xue, Wenbing Liu, Jiayuan Chen, Yihan Mei, Runxia Gu, Hui Wei, Shaowei Qiu, Min Wang, Qing Rao, Jianxiang Wang   +12 more
wiley   +1 more source

Drilling fluid loss model and loss dynamic behavior in fractured formations

Petroleum Exploration and Development, 2014
In view of the lost circulation in fractured formations, a two-dimensional transient model for describing a power-law drilling fluid loss in an arbitrarily-oriented, compressible, permeable, rough-walled fracture was introduced.
Lichun JIA, Mian CHEN, Bing HOU, Zhen SUN, Yan JIN   +4 more
doaj  

Modelling single ventricle physiology: Review of engineering tools to study first stage palliation of hypoplastic left heart syndrome

Frontiers in Pediatrics, 2013
First stage palliation of hypoplastic left heart syndrome (HLHS), i.e. the Norwood operation, results in a complex physiological arrangement, involving different shunting options (modified Blalock-Taussig, RV-PA conduit, central shunt from the ascending ...
Giovanni eBiglino, Giovanni eBiglino, Alessandro eGiardini, Tain-Yen eHsia, Richard eFigliola, Andrew M Taylor, Andrew M Taylor, Silvia eSchievano, Silvia eSchievano   +8 more
doaj   +1 more source

Embedding of a Blade-Element Analytical Model into the SHYFEM Marine Circulation Code to Predict the Performance of Cross-Flow Turbines

Journal of Marine Science and Engineering, 2020
Our aim was to embed a 2D analytical model of a cross-flow tidal turbine inside the open-source SHYFEM marine circulation code. Other studies on the environmental impact of Tidal Energy Converters use marine circulation codes with simplified approaches ...
Micol Pucci, Debora Bellafiore, Stefania Zanforlin, Benedetto Rocchio, Georg Umgiesser   +4 more
doaj   +1 more source