Results 31 to 40 of about 1,689,762 (301)

THE ROLE OF AIR ADVECTION AND ATMOSPHERIC STABILITY INDICES FOR IDENTIFING HEAVY RAIN STORMS IN NORTH-WESTERN ROMANIA [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2015
Air advection and convection at different levels in the atmosphere affect its vertical stability. The degree of stability / instability can be determined by using vertical wind profile (hodograph) and stability indices. Analysis of these two elements was
TUDOSE T., MOLDOVAN F.
doaj   +1 more source

Modelling for JET Vertical Stabilization System [PDF]

open access: yes, 2010
Nuclear fusion is, in a sense, the opposite of nuclear fission. Fission, which is a mature technology, produces energy through the splitting of heavy atoms like uranium in controlled chain reactions.
Bellizio, Teresa
core   +1 more source

Baroclinic instability in the two-layer model: interpretations

open access: yesMeteorologische Zeitschrift, 2009
Two new interpretations of the wellknown instability criterion of the two-layer model of baroclinic instability are given whereby also a slight generalization of this model is introduced by admitting an interface on top with a reduced gravity g.
Joseph Egger
doaj   +1 more source

Beam ion instability: Measurement, analysis, and simulation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2013
A weak vertical coupled-bunch instability with oscillation amplitude of the order of a few μm has been observed in SPEAR3 at nominal vacuum pressure. The instability becomes stronger with increasing neutral gas pressure as observed by turning off vacuum ...
L. Wang   +7 more
doaj   +1 more source

The vertical shear instability in poorly ionized, magnetized protoplanetary discs [PDF]

open access: yes, 2022
Protoplanetary discs should exhibit a weak vertical variation in their rotation profiles. Typically, this ‘vertical shear’ issues from a baroclinic effect driven by the central star’s radiation field, but it might also arise during the launching of a ...

core   +2 more sources

Beam instability induced by rf deflectors in the combiner ring of the CLIC test facility and mitigation by damped deflecting structures

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2011
In the CTF3 (CLIC test facility 3) run of November 2007, a vertical beam instability has been found in the combiner ring during operation. After a careful analysis, the source of the instability has been identified in the vertical deflecting modes ...
David Alesini   +4 more
doaj   +1 more source

Experiments on a barotropic rotating shear layer. Part 1. Instability and steady vortices [PDF]

open access: yes, 1999
The barotropic shear layer in a rotating fluid is studied in a laboratory experiment. Through the rotation of circular sections in the base and lid of a circular tank relative to a background rotation of the entire system, a vertical layer of strong ...
Fruh, Wolf-Gerrit; id_orcid   +1 more
core   +1 more source

The coexistence of the streaming instability and the vertical shear instability in protoplanetary disks

open access: yes, 2022
The streaming instability is a promising mechanism to induce the formation of planetesimals. Nonetheless, this process has been found in previous studies to require either a dust-to-gas surface density ratio or a dust size that is enhanced compared to ...
Urs Schäfer   +6 more
core   +1 more source

Effects of non-rigidity on fast plasma boundary control using in-vessel coils in JT-60SA

open access: yesNuclear Fusion
An effective fast plasma position control (FPPC) method using in-vessel poloidal field coils and capable of maintaining high-elongation plasma, and hence high vertical instability growth, was developed utilizing an magneto-hydrodynamic equilibrium ...
Shinichiro Kojima   +4 more
doaj   +1 more source

An outer membrane vesicle‐associated two‐track model for enterotoxigenic Bacteroides fragilis oncogenesis

open access: yesMolecular Oncology, EarlyView.
Enterotoxigenic Bacteroides fragilis is a gut bacterium linked to bowel cancer. We propose that its toxin acts along two routes: at the cell surface, cutting the adhesion protein E‐cadherin and triggering inflammation; and inside the cell, delivered by bacterial vesicles, switching on NOD1 and cancer stem cell programs.
Kangchan Choi   +2 more
wiley   +1 more source

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