Results 41 to 50 of about 4,141,576 (334)
Energies, 2023 Electrical heating rods are a commonly used application for switch point heating in order to keep switch points free from ice and snow. Clamps made of spring steel usually attach the heating rod to the rail.
Markus Schladitz +2 more
doaj +1 more source
Controllable high voltage source having fast settling time [PDF]
, 1975 A high voltage dc stepping power supply for sampling a utilization device such as an electrostatic analyzer has a relatively fast settling time for voltage steps. The supply includes a waveform generator for deriving a low voltage staircase waveform that
Acuna, M. H., Doong, H.
core +1 more source
Population Ecology, EarlyView.Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi +3 more
wiley +1 more source
Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells
FEBS Letters, EarlyView.Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan +2 more
wiley +1 more source
A hybrid multilevel converter for medium and high voltage applications [PDF]
, 2010 This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Adam, Grain Philip +4 more
core
Distributed Generation as Voltage Support for Single Wire Earth Return Systems [PDF]
, 2004 Key issues for distributed generation (DG) inclusion in a distribution system include operation, control, protection, harmonics, and transients. This paper analyzes two of the main issues: operation and control for DG installation.
Kashem, Mohammad, Ledwich, Gerard
core +2 more sources
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
Journal of Electrical Systems and Information Technology, 2018 In this study, a MATLAB/Simulink software based electro-thermal model of the polymer housed, gapless, 60 kV ZnO surge arrester is used for estimating the ‘ Critical Resistive Leakage Current (CRLC)’.
Likitha S. +4 more
doaj +1 more source
Concept level evaluation of the optical voltage and current sensors and an arrayed waveguide grating for aero-electrical system applications [PDF]
, 2007 In this paper we present, for the first time, the hybrid fiber-optic voltage and current sensors interrogated using an arrayed waveguide grating (AWG) device.
Fusiek, G., McDonald, J.R., Niewczas, P.
core +1 more source
A quantitative research on the level of disturbance to secondary signal ports of electronic voltage transformers under the operation of gas‐insulated switchgear [PDF]
, 2021 Qi Wang +6 more
openalex +1 more source