Results 51 to 60 of about 776,512 (297)

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez   +12 more
wiley   +1 more source

Received signal strength indication-based localisation method with unknown path-loss exponent for HVDC electric field measurement

open access: yesHigh Voltage, 2017
The electric field environment under high-voltage direct current (HVDC) transmission lines is an important design consideration. In the wireless sensor networks for electric field measurement system under the HVDC transmission lines, it is necessary to ...
Xiaolan Gu   +6 more
doaj   +1 more source

Dielectronic recombination of lithium-like Ni25+ ions - high resolution rate coefficients and influence of external crossed E and B fields [PDF]

open access: yes, 2000
Absolute dielectronic recombination (DR) rates for lithium-like Ni$^{25+}$($1s^2 2s$) ions were measured at high-energy resolution at the Heidelberg heavy-ion storage ring TSR. We studied the center-of-mass energy range 0--130 eV which covers all $\Delta
Bartsch, Timo   +9 more
core   +2 more sources

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

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer   +3 more
wiley   +1 more source

РОЗРАХУНОК ЕЛЕКТРИЧНИХ ПОЛІВ В ЕЛЕМЕНТАХ КОНСТРУКЦІЇ КОМБІНОВАНОГО ВИСОКОВОЛЬТНОГО ВИМІРЮВАЛЬНОГО ТРАНСФОРМАТОРА СТРУМУ І НАПРУГИ

open access: yesElektrotehnìka ta Elektroenergetika, 2007
З використанням програми FEMM виконаний розрахунок електричних полів в ізоляційному проміжку комбінованого елегазового високовольтного вимірювального трансформатора струму і напруги.
D. A. Saveliev, E. V. Boyarintseva
doaj  

Transmission Line Sag Measurement and Simulation Research Based on Non-Contact Electric Field Sensing

open access: yesSensors, 2022
Sag is an important indicator of the operational health of a transmission line, and its timely measurement is of great significance to maintain the stability and reliability of power systems.
Jinhua Zuo   +5 more
doaj   +1 more source

Local electric field measurements by optical tweezers

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
We report a new technique to measure direction and amplitude of electric fields generated by microelectrodes embedded in polar liquid environment, as often used in microfluidic devices. The method is based on optical tweezers which act as sensitive force transducer while a trapped charged microsphere behaves as a probe.
PESCE, GIUSEPPE   +5 more
openaire   +4 more sources

A trapped-ion local field probe

open access: yes, 2010
We introduce a measurement scheme that utilizes a single ion as a local field probe. The ion is confined in a segmented Paul trap and shuttled around to reach different probing sites.
A.N. Tikhonov   +27 more
core   +1 more source

Nonlinear QED in an ultrastrong rotating electric field: Signatures of the momentum-dependent effective mass

open access: yes, 2020
The specific features of nonlinear pair production and radiation processes in an ultratsrong rotating electric field are investigated, taking into account that this field models the antinodes of counterpropagating laser beams. It is shown that a particle
Hatsagortsyan, K., Raicher, E.
core   +1 more source

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