Results 21 to 30 of about 2,137,899 (339)
The Role of Voltage-Gated Sodium Channels in Pain Signaling.
Acute pain signaling has a key protective role and is highly evolutionarily conserved. Chronic pain, however, is maladaptive, occurring as a consequence of injury and disease, and is associated with sensitization of the somatosensory nervous system ...
David L H Bennett+4 more
semanticscholar +1 more source
On specification-based cyber-attack detection in smart grids
The transformation of power grids into intelligent cyber-physical systems brings numerous benefits, but also significantly increases the surface for cyber-attacks, demanding appropriate countermeasures.
Ömer Sen+7 more
doaj +1 more source
Electrical Treeing of SiR and SiR/Fe3O4 Nanocomposites in High Magnetic Field
This paper investigates the effects of high magnetic field on electrical treeing of silicone rubber (SiR). Experimental results show that electrical trees are more easily to be initiated and spread further along the direction of electric field under the ...
Mingyang Wang+4 more
doaj +1 more source
Secondary Frequency and Voltage Control of Islanded Microgrids via Distributed Averaging [PDF]
In this paper, we present new distributed controllers for secondary frequency and voltage control in islanded microgrids. Inspired by techniques from cooperative control, the proposed controllers use localized information and nearest-neighbor ...
J. Simpson-Porco+5 more
semanticscholar +1 more source
Voltage Ripple Reduction in Voltage Loop of Voltage Source Converter
In order to achieve a good dynamical response of a full-bridge AC-DC voltage source converters (VSC). The bandwidth of PI controller must be relatively wide. This leads to the voltage ripple produced in the control signal, as known that its ripple frequency has twice of the line frequency and cause the 3rd harmonic of an input current. A Ripple Voltage
Jedsada Jaroenkiattrai, Viboon Chunkag
openaire +2 more sources
Linear voltage recovery after a breakdown in a pulsed dc system [PDF]
Breakdowns may occur in high-voltage applications even in ultrahigh vacuum conditions. Previously, we showed that it is important to pay attention to the post-breakdown voltage recovery in order to limit the appearance of secondary breakdowns associated with the primary ones. This can improve the overall efficiency of the high-voltage device.
arxiv +1 more source
Electromagnetically induced transparency based Rydberg-atom sensor for quantum voltage measurements [PDF]
We investigate the Stark shift in Rydberg rubidium atoms through electromagnetically induced transparency for the measurement of direct current (dc) and 60~Hz alternating current (ac) voltages. This technique has direct applications to atom-based measurements of dc and ac voltage and the calibration of voltage instrumentation.
arxiv +1 more source
Power cable stresses caused by transmission line faults in next generation VSC-MMC systems
Until today, HVDC systems based on Modular Multilevel Voltage Source Converters (VSC-MMC) have exclusively been realised with cross-linked polyethylene (XLPE) cable transmission in monopolar configuration.
Philipp Tünnerhoff+3 more
doaj +1 more source
The ongoing large‐scale construction of ultra high voltage direct current projects in China makes the crossing of two high voltage direct current (HVDC) lines inevitable.
Xiaoqian Ma, Li Xie, Kun He, Jiayu Lu
doaj +1 more source
To evaluate and optimise insulation coordination concepts for state of the art high-voltage direct current (HVDC) transmission systems, appropriate test voltage shapes are required for laboratory imitation of occurring stresses.
Claudius Freye+4 more
doaj +1 more source