Results 71 to 80 of about 805,683 (297)

Experimental characterization and modelling of a cavitating centrifugal pump operating in fast start-up conditions [PDF]

, 2010
The start-up of rocket engine turbopumps is generally performed only in a few seconds. It implies that these pumps reach their nominal operating conditions after only a few rotations.
Bois, Gérard, Caignaert, Guy, Coutier-Delgosha, Olivier, Dazin, Antoine, Duplaa, Sébastien   +4 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Transient power equalization control strategy of virtual synchronous generator in isolated island microgrid with heterogeneous power supply

Scientific Reports, 2023
In the parallel supply system of synchronous generator and virtual synchronous generator, the physical structure and control structure of the two kinds of power supply are quite different, and it is difficult to distribute the transient power of the two ...
Changwei Gao, Yongchang Sun, Weiqiang Zheng, Wei Wang   +3 more
doaj   +1 more source

Explaining the transient fast blue absorption lines in the massive binary system Eta Carinae

, 2011
We use recent observations of the He I $\lambda10830 \AA$ absorption line and 3D hydrodynamical numerical simulations of the winds collision, to strengthen the case for an orientation of the semimajor axis of the massive binary system Eta Carinae where ...
Amit Kashi, Blondin, Blondin, Corcoran, Corcoran, Damineli, Damineli, Damineli, Damineli, Davidson, Duncan, Fernandez-Lajus, Groh, Groh, Groh, Hamaguchi, Hillier, Kashi, Kashi, Kashi, Kashi, Kashi, Kashi, Kashi, Kashi, Kashi, Mehner, Muhammad Akashi, Nielsen, Noam Soker, Parkin, Pittard, Smith, Smith, Smith, Smith, Smith, Soker, Soker, Soker, Stevens, Sutherland, van Genderen, Weigelt, Whitelock   +44 more
core   +1 more source

The bright optical flash from GRB 060117 [PDF]

, 2006
We present a discovery and observation of an extraordinarily bright prompt optical emission of the GRB 060117 obtained by a wide-field camera atop the robotic telescope FRAM of the Pierre Auger Observatory from 2 to 10 minutes after the GRB.
A. de Ugarte Postigo, A. J. Castro-Tirado, Akerlof, Barthelmy, Björnsson, Blustin, Burrows, D. Mandát, D. Nosek, Guidorzi, J. Gorosabel, J. Grygar, J. Řídký, L. Nožka, Lazzati, Li, M. Boháčová, M. Hrabovský, M. Jelínek, M. Nekola, M. Palatka, M. Pech, M. Prouza, P. Kubánek, P. Schovánek, P. Trávníček, Piran, R. Hudec, R. Šmída, Rykoff, S. B. Pandey, S. Vítek, Sari, Schlegel, Shao, Zhang   +35 more
core   +2 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Fast-Varying and Transient Nonlinear Equation for Microstructure Fibers

IEEE Photonics Journal, 2017
The transient nonlinear equation that describes the fast varying field in microstructure fibers (photonic crystal fibers) is established. In this equation, the frequency and wavenumber are functions of time.
Jing Huang, Yong Zhang, Wenqing Man
doaj   +1 more source

Searches for Fast Radio Transients

The Astrophysical Journal, 2003
Submitted to ...
Cordes, J. M., McLaughlin, M. A.
openaire   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source