Results 31 to 40 of about 49,516 (251)

Rocket-borne investigation of auroral patches in the evening sector during substorm recovery [PDF]

open access: yesAnnales Geophysicae, 2003
On 11 February 1997 at 08:36 UT after a substorm onset the Auroral Turbulence 2 sounding rocket was launched from Poker Flat Research Range, Alaska into a moderately active auroral region.
M. A. Danielides   +2 more
doaj   +1 more source

Imaging Transport Resonances in the Quantum Hall Effect [PDF]

open access: yes, 2005
We use a scanning capacitance probe to image transport in the quantum Hall system. Applying a DC bias voltage to the tip induces a ring-shaped incompressible strip (IS) in the 2D electron system (2DES) that moves with the tip.
G. A. Steele   +4 more
core   +1 more source

Broadband Circular Polarizers Constructed by Helix-like Chiral Metamaterials

open access: yes, 2016
In this paper, a kind of helix-like chiral metamaterial, which can be realized with multiple conventional lithography or electron beam lithographic techniques, is proposed to achieve broadband bianisotropic optical response analogous to helical ...
Chen, Xiaoshuang   +4 more
core   +1 more source

The effect of E-region wave heating on electrodynamical structures [PDF]

open access: yesAnnales Geophysicae, 2005
We show that heating by large amplitude E-region plasma waves at high latitudes can at times substantially enhance the electro-dynamical response of the ionosphere.
J.-M. A. Noël   +2 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

An optimized scheme for OLTCs of distribution transformers using flywheel motors

open access: yesZhejiang dianli
In the switching process of on-load tap changers (OLTCs) for distribution transformers, electric arcs are likely to occur at the contacts, which have an adverse impact on the service life and normal operation of the equipment.
LI Jiang, GUO Surong, LIU Bo
doaj   +1 more source

Specifics of automatic switches commutation testing [PDF]

open access: yesE3S Web of Conferences, 2019
We demonstrate that the most efficient way to extinguish the short-circuit arc is extinguishing inside the camera with an arc extinguishing grid, which splits it into several smaller arcs.
Egorov E. G.   +5 more
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Full-wave modeling of arcs within the ITER ICRF antenna for usage in the simulations and design of the RADAR Arc Detection system [PDF]

open access: yesEPJ Web of Conferences
The ITER ICRF antenna [1] has been carefully designed to feature electrical fields below tolerable limits (typically, below 2 or 3 kV/mm depending on the location and orientation) when operating at a maximum voltage of 45 kV.
Milanesio Daniele   +6 more
doaj   +1 more source

Vela, its X-ray nebula, and the polarization of pulsar radiation

open access: yes, 2001
The recent identification of the perpendicular mode of radio polarization as the primary one in the Vela pulsar by Lai et al. (2001) is interpreted in terms of the maser mechanism proposed by Luo & Melrose (1995).
A. A. Deshpande   +16 more
core   +1 more source

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