Results 241 to 250 of about 2,175 (306)

Bio‐Nanocomposite Film Based on Pectin From Citrus sinensis Peel Reinforced With Montmorillonite With Improved Mechanical and Barrier Properties

open access: yesFuture Postharvest and Food, EarlyView.
(1) Pectin from Malta (Citrus sinensis) peel. (2) Montmorillonite with various levels. (3) Bio‐nanocomposite film with pectin and montmorillonite. (i) Mechanical. (ii) Structural Characterization (iii) Thermal. (iv) Morphological. (v) Barrier. ABSTRACT The casting method was used to develop bio‐nanocomposite film by combining pectin extracted from ...
Divya Arora, Charanjiv Singh Saini
wiley   +1 more source

Effects from a single application of photobiomodulation on pain intensity from perineal trauma related to childbirth: A randomized controlled trial

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To analyze the effects of a single photobiomodulation (PBM) application on perineal pain and healing in women in the immediate postpartum period. Methods Randomized controlled trial, double‐blind, two‐center, with 60 postpartum women with perineal trauma and pain scoring 4 or more on the Numeric Rating Scale (NRS).
Edna Jéssica Lima Gondim   +5 more
wiley   +1 more source

A Comparative Study of Ultrasonography and CT Venography in the Diagnosis of Budd‐Chiari Syndrome

open access: yesJournal of Clinical Ultrasound, EarlyView.
Budd‐Chiari syndrome (BCS) is characterized by hepatic venous outflow obstruction from the hepatic veins to the junction of the inferior vena cava (IVC) and right atrium. Ultrasound (US) and CT venography (CTV) are used as imaging techniques for the diagnosis of BCS, and We compared the diagnostic efficacy of the two modalities. The results showed that
Tiling Jiang   +6 more
wiley   +1 more source

Long-term vacuum integrity of vacuum interrupters

2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014
Vacuum interrupters (VI's) are the primary switching technology for medium voltage (1–52kV) electrical power systems. The extensive field service of VI's is now raising interest in determining the end of life for these devices, with the primary concern being the loss of vacuum.
E. D. Taylor, A. Lawall, D. Gentsch
openaire   +1 more source

Interrupting capability of vacuum interrupter by various parameter

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC), 2012
Vacuum interrupter (VI) has been commercially available in medium voltage switching equipment. Recently, the development of the VIs is focused to reduce the size. Thus, it is necessary to a smaller size contact. In this paper, we investigated the interruption behavior in the real VI with two different contact size of the transverse magnetic field (TMF)
Chi-Wuk Gu   +4 more
openaire   +1 more source

Interrupting abilities of vacuum interrupters with horseshoe electrode

SPIE Proceedings, 1994
In this paper, the high current vacuum arc behavior with horse shoe electrode has been described. These are dynamic vacuum arc distribution, the maximum current density related to the interrupting limit and factors which influences the interrupting limits. Then based on the above analyses, several vacuum interrupters within (phi) 70 mm outside diameter
W. Shang, H. Schellekens
openaire   +1 more source

Particle detection in vacuum interrupter after current interruption

2013 19th IEEE Pulsed Power Conference (PPC), 2013
After high current interruption in vacuum interrupter, the electrode temperature rises because of the current heat process, and the surface becomes rough due to the arc burn on electrodes. In this paper, random discharge after current zero is reported, and conducting particle is considered to be responsible for the phenomenon.
Shuo Xu   +4 more
openaire   +1 more source

Development of Vacuum Interrupters with High Interrupting Capacity

IEEE Transactions on Power Delivery, 1987
Vacuum interrupters, in which axial magnetic field type electrodes and CuCr contact materials are ccnbined, show excellent performance from all points of view. By this combination of electrode and contact material, the arcing phenomenon is scmewhat different from that of existing combinations. We have investigated the arcing and dielectric phenanena in
M. Okawa   +5 more
openaire   +1 more source

Reignition current interruption characteristics of the vacuum interrupter

IEEE Transactions on Power Delivery, 1988
The high-frequency (70-600 kHz) current-interrupting capability of the vacuum interrupter has been investigated using an LC surge testing circuit. Three parameters were examined: di/dt, (di/dt)/gap, and Q*(di/dt)/gap, where Q is a quantity that represents the amount of residue between contacts at zero reignition current. It was found that Q*(di/dt)/gap
Y. Matsui, T. Yokoyama, E. Umeya
openaire   +1 more source

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