Results 41 to 50 of about 329,929 (341)

Novel Switched Configuration-Based Multilevel Inverter Topology for Industrial Applications

open access: yesJournal of Electrical and Computer Engineering, 2022
Multilevel inverters proved its capabilities nowadays operating in the symmetrical and asymmetrical source of voltages to bring output voltage nearly to a sinusoid.
V. Krishnakumar   +3 more
doaj   +1 more source

Design and experimental investigation of a novel thermal energy storage unit with phase change material

open access: yesEnergy Reports, 2021
A novel design of a shell-and-tube thermal energy storage unit with phase change material was proposed in the study. The layouts of highly conductive fins and phase change material (PCM) in the energy storage unit were optimized through the topology ...
Tingwei Zhang   +2 more
doaj   +1 more source

Topological Bloch Bands in Graphene Superlattices [PDF]

open access: yes, 2014
We outline an approach to endow a plain vanilla material with topological properties by creating topological bands in stacks of manifestly nontopological atomically thin materials.
Levitov, Leonid S.   +2 more
core   +3 more sources

Arbitrarily Configurable Nonlinear Topological Modes

open access: yesPhysical Review Letters
Topological modes (TMs) are typically localized at boundaries, interfaces and dislocations, and exponentially decay into the bulk of a large enough lattice. Recently, the non-Hermitian skin effect has been leveraged to delocalize the wave functions of TMs from the boundary and thus to increase the capacity of TMs dramatically.
Kai Bai   +5 more
openaire   +3 more sources

Network configuration synthesis with abstract topologies [PDF]

open access: yesACM SIGPLAN Notices, 2017
We develop Propane/AT, a system to synthesize provably-correct BGP (border gateway protocol) configurations for large, evolving networks from high-level specifications of topology, routing policy, and fault-tolerance requirements. Propane/AT is based on new abstractions for capturing parameterized network topologies and their evolution, and algorithms ...
Ryan Beckett   +4 more
openaire   +1 more source

Sphalerons, spectral flow, and anomalies

open access: yes, 2003
The topology of configuration space may be responsible in part for the existence of sphalerons. Here, sphalerons are defined to be static but unstable finite-energy solutions of the classical field equations.
Belavin A. A.   +36 more
core   +1 more source

Absolute configuration and chemical topology

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1963
The stereochemistry of catenanes, knotted molecules, and Borromean rings is discussed. An augmentation of the Cahn-Ingold-Prelog convention for designating absolute configuration is proposed. A convention is proposed for designating the absolute configuration of knotted molecules. A suggestion is made concerning the citing of the absolute configuration
openaire   +2 more sources

Ferroelectric topologically configurable multilevel logic unit

open access: yesNeuromorphic Computing and Engineering, 2023
Abstract Multilevel devices demonstrating switchable polarization enable us to efficiently realize neuromorphic functionalities including synaptic plasticity and neuronal activity. Here we propose using the ferroelectric logic unit comprising multiple nanodots disposed between two electrodes and coated by the dielectric material.
Anna G Razumnaya   +3 more
openaire   +2 more sources

A management framework for automating network experiments and user behaviour emulation on large scale testbed facilities [PDF]

open access: yes, 2010
Generic test environments such as Emu lab allow to perform large scale tests on different network topologies. While these facilities offer a tool to easily configure the topology, setting up realistic network scenarios afterwards is a manual and time ...
De Turck, Filip   +3 more
core   +1 more source

Spacetime topology from the tomographic histories approach I: Non-relativistic Case

open access: yes, 2006
The tomographic histories approach is presented. As an inverse problem, we recover in an operational way the effective topology of the extended configuration space of a system.
C. J. Isham   +21 more
core   +1 more source

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