Results 31 to 40 of about 52,811 (317)

Research on automatic location and recognition of insulators in substation based on YOLOv3

open access: yesHigh Voltage, 2019
With the development of a smart grid, the automatic location of power equipment is becoming a trend. In this study, a method for automatic location identification and diagnosis of external power insulation equipment based on YOLOv3 is proposed. This deep
Yunpeng Liu   +6 more
doaj   +1 more source

The insulator uncovered

open access: yesNature, 2001
Microscopes that reveal the structures of surfaces one atom at a time are good at imaging conductors but perform poorly with insulators. That may be about to change.
Pethica, J, Egdell, R
openaire   +1 more source

Numerical Simulation for Void Coalescence (Water Treeing) in XLPE Insulation of Submarine Composite Power Cables

open access: yesEnergies, 2020
Due to the growing demand for offshore renewable energy, the development of durable submarine power cables is critical. Submarine power cables are expected to have a service life of over 20 years.
Monssef Drissi-Habti   +3 more
doaj   +1 more source

Plasmonics in Topological Insulators

open access: yes, 2014
With strong spin-orbit coupling, topological insulators have an insulating bulk state, characterized by a band gap, and a conducting surface state, characterized by a Dirac cone.
Lin, I-Tan   +7 more
core   +1 more source

High-Quality (0001) α-Ga2O3 Film Grown by Mist Chemical Vapor Deposition on (0001) α-Cr2O3 Template

open access: yesCrystals
A (0001) α-Ga2O3 film was grown by the mist chemical vapor deposition method on a (0001) α-Cr2O3 template (100 μm thick α-Cr2O3 layer formed on an α-Al2O3 substrate).
Kotono Yamada   +6 more
doaj   +1 more source

Metal-Insulator and Insulator-Insulator Transitions in the Quarter-Filled Band Organic Conductors [PDF]

open access: yesPhysical Review Letters, 1994
9 pages, uuencoded compressed Postscript ...
Ung, K. C., Mazumdar, S., Toussaint, D.
openaire   +3 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Spectral Asymmetry Induces a Re‐Entrant Quantum Hall Effect in a Topological Insulator

open access: yesAdvanced Science
The band inversion of topological materials in three spatial dimensions is intimately connected to the parity anomaly of 2D massless Dirac fermions, known from quantum field theory.
Li‐Xian Wang   +7 more
doaj   +1 more source

Dynamics of surface charge and electric field distributions on basin-type insulator in GIS/GIL due to voltage polarity reversal

open access: yesHigh Voltage, 2020
In this study, a simulation model of surface charge accumulation has been established. The model considers three accumulation ways, i.e. electrical conduction within the gas, through insulator volume and along the insulator surface.
Yi Luo   +7 more
doaj   +1 more source

Transcription Independent Insulation at TFIIIC-Dependent Insulators [PDF]

open access: yesGenetics, 2009
Abstract Chromatin insulators separate active from repressed chromatin domains. In yeast the RNA pol III transcription machinery bound to tRNA genes function with histone acetylases and chromatin remodelers to restrict the spread of heterochromatin.
Lourdes, Valenzuela   +2 more
openaire   +2 more sources

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