Results 91 to 100 of about 8,893 (314)

The near-nucleus atmosphere of comet 67P/Churyumov – Gerasimenko at the moment of its rendezvous with the Rosetta space probe

St. Petersburg Polytechnical University Journal: Physics and Mathematics
The multicomponent atmosphere of a comet with a complex-shaped nucleus has been simulated. The geometry and integral parameters of the gas productivity of the nucleus correspond to the conditions of comet 67P/Churyumov – Gerasimenko at the moment of its ...
Zakharov Vladimir, Rodionov Alexander, Tomilin Ilya, Bykov Nikolay   +3 more
doaj   +1 more source

Impact of mode of application of magnetic field on rate of heat transfer of rarefied gas flows in a microtube

Alexandria Engineering Journal, 2018
This paper examines theoretically the impact of transverse and radial mode of application of magnetic field on rate of heat transfer of rarefied gas in a micro tube.
Basant K. Jha, Michael O. Oni
doaj   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source

Study of the thermomolecular pressure difference phenomenon in thermal creep flows through microchannels of triangular and trapezoidal cross sections [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
Valougeorgis, D, 2nd Micro and Nano Flows Conference (MNF2009), Ritos, K, Lihnaropoulos, Y, Naris, S   +4 more
core  

Efficient prediction of aerodynamic forces in rarefied flow using convolutional neural network based multi-process method

Machine Learning: Science and Technology
The direct simulation Monte Carlo (DSMC) is a widely used approach for studying aerodynamics effects of rarefied flows, but it is highly time-consuming and may exhibit statistical fluctuations.
Haifeng Huang, Guobiao Cai, Chuanfeng Wei, Baiyi Zhang, Xiang Cui, Yongjia Zhao, Huiyan Weng, Weizong Wang, Lihui Liu, Bijiao He   +9 more
doaj   +1 more source

Hydrodynamics and rheology of a dilute granular plane Couette flow [PDF]

EPJ Web of Conferences
We simulate the plane Couette flow of a dilute granular gas using the Direct Simulation Monte Carlo method. We calculate relevant hydrodynamic and rheological quantities and highlight the effects of driving shear rate and inelasticity on them.
Gupta Ronak, Alam Meheboob
doaj   +1 more source

Rarefied dynamic pressure distribution measurement near a vacuum pump

Nihon Kikai Gakkai ronbunshu, 2020
In vacuum chambers, such as those at a ground test facility, pressure is higher and the gas resident time is longer than in space because such chambers are surrounded by walls and vacuum pumps.
Yoshinori NAKAYAMA
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
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

Capturing the Knudsen layer in continuum-fluid models of non-equilibrium gas flows [PDF]

, 2005
In hypersonic aerodynamics and microflow device design, the momentum and energy fluxes to solid surfaces are often of critical importance. However, these depend on the characteristics of the Knudsen layer - the region of local non-equilibrium existing up
Reese, Jason M., Gallis, Michael A., Lockerby, Duncan A.   +2 more
core