Results 61 to 70 of about 414,493 (191)

Effects of inert gas addition on the characteristics of spherically expanding hydrogen-methane-air premixed flames in closed combustion vessels

open access: yesJournal of Thermal Science and Technology
In the serious accident at Fukushima Daiichi Nuclear Power Station, the presence of steam together with flammable organic compounds affected the hydrogen explosion. To investigate the effects of addition of inert gas, i.e.
Toshiyuki KATSUMI   +7 more
doaj   +1 more source

Relaxation of curvature induced elastic stress by the Asaro-Tiller-Grinfeld instability

open access: yes, 2015
A two-dimensional crystal on the surface of a sphere experiences elastic stress due to the incompatibility of the crystal axes and the curvature. A common mechanism to relax elastic stress is the Asaro-Tiller-Grinfeld (ATG) instability.
Backofen, R., Köhler, C., Voigt, A.
core   +1 more source

The baroclinic instability in the context of layered accretion. Self-sustained vortices and their magnetic stability in local compressible unstratified models of protoplanetary disks

open access: yes, 2011
Turbulence and angular momentum transport in accretion disks remains a topic of debate. With the realization that dead zones are robust features of protoplanetary disks, the search for hydrodynamical sources of turbulence continues.
Balbus   +32 more
core   +1 more source

An experimental study of the intrinsic stability of random forest variable importance measures [PDF]

open access: yes, 2016
BACKGROUND: The stability of Variable Importance Measures (VIMs) based on random forest has recently received increased attention. Despite the extensive attention on traditional stability of data perturbations or parameter variations, few studies include
A Altmann   +42 more
core   +2 more sources

Modified Arthroscopic Volar Scapholunate Capsuloligamentous Repair in Chronic Severe but Reducible Volar Scapholunate Instability

open access: yesArthroscopy Techniques
The scapholunate complex is composed of the intrinsic scapholunate ligament and the surrounding extrinsic ligamentous system on the dorsal and volar sides of the wrist.
Chul Ki Goorens, M.D.   +1 more
doaj   +1 more source

EEG state-trajectory instability and speed reveal global rules of intrinsic spatiotemporal neural dynamics.

open access: yesPLoS ONE, 2020
Spatiotemporal dynamics of EEG/MEG (electro-/magneto-encephalogram) have typically been investigated by applying time-frequency decomposition and examining amplitude-amplitude, phase-phase, or phase-amplitude associations between combinations of ...
Melisa Menceloglu   +2 more
doaj   +1 more source

A Chaotic State in the Transition From Single Toward Multiple Pulse for Soliton Fiber Lasers

open access: yesIEEE Photonics Journal, 2020
High-order soliton in anomalous-dispersion ultrafast fiber lasers is rarely researched due to its intrinsic instability in dissipative systems. For the first time, we numerically demonstrate the ultrafast pulse in fiber lasers will deviate from the ...
Yueqing Du, Mengmeng Han, Xuewen Shu
doaj   +1 more source

Coexistence of Magneto-Rotational and Jeans Instabilities in an Axisymmetric Nebula

open access: yes, 2018
We analyze the magneto-rotational instability (MRI) effects on gravitational collapse and its influence on the instability critical scale. In particular, we study an axisymmetric nonstratified differentially rotating cloud, embedded in a small magnetic ...
Carlevaro, Nakia   +2 more
core   +1 more source

miR-181a initiates and perpetuates oncogenic transformation through the regulation of innate immune signaling

open access: yesNature Communications, 2020
The majority of high grade serous ovarian cancers originate from fallopian tube secretory epithelial cells (FTSECs). Here the authors show that miR-181a drives oncogenic transformation in FTSECs through the cooperative inhibition of the tumor suppressor ...
Matthew Knarr   +9 more
doaj   +1 more source

Intrinsic instability of sonic white holes

open access: yes, 2002
Artificial black holes, such as sonic holes in Bose-Einstein condensates, may give insights into the role of the physics at the event horizon beyond the Planck scale. We show that sonic white holes give rise to a discrete spectrum of instabilities that is insensitive to the analogue of trans-Planckian physics for Bose-Einstein condensates.
Leonhardt, U., Kiss, T., Ohberg, P.
openaire   +2 more sources

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