Results 1 to 10 of about 5,914,333 (296)

Open Universities: the next phase [PDF]

open access: yesAAOU Journal, 2018
Purpose - The purpose of this paper is to report on research on the views of Presidents and Vice Chancellors of Open Universities of current threats and opportunities for their institutions as the author marks the 50th anniversary of the first Open ...
Alan Tait
doaj   +6 more sources

Open questions on liquid–liquid phase separation [PDF]

open access: yesCommunications Chemistry, 2023
Liquid-liquid phase separation (LLPS) underlies the formation of intracellular membraneless compartments in biology and may have played a role in the formation of protocells that concentrate key chemicals during the origins of life.
Evan Spruijt
doaj   +6 more sources

Phase transitions in open quantum systems [PDF]

open access: yesPhysical Review E, 1998
We consider the behaviour of open quantum systems in dependence on the coupling to one decay channel by introducing the coupling parameter $\alpha$ being proportional to the average degree of overlapping.
A. Bürgers   +31 more
core   +7 more sources

Geometric phase distributions for open quantum systems [PDF]

open access: yesPhysical Review Letters, 2004
In an open system, the geometric phase should be described by a distribution. We show that a geometric phase distribution for open system dynamics is in general ambiguous, but the imposition of reasonable physical constraints on the environment and its ...
A. K. Pati   +9 more
core   +5 more sources

Open-boundary conditions in the deconfined phase [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In this work, we consider open-boundary conditions at high temperatures, as they can potentially be of help to measure the topological susceptibility. In particular, we measure the extent of the boundary effects at $$T=1.5T_c$$ T=1.5Tc and $$T=2.7T_c$$ T=
Adrien Florio   +2 more
doaj   +5 more sources

Open Phase Fault Tolerant Control of Multi Three Phase Machines

open access: yesIEEE Open Journal of Power Electronics, 2021
Drive system availability is critical in aerospace applications. Multi three phase machines are a known solution to provide redundancy and fault tolerance capability.
Jayakrishnan Harikumaran   +3 more
doaj   +1 more source

Geometric Phase in Open Systems [PDF]

open access: yesPhysical Review Letters, 2003
We calculate the geometric phase associated to the evolution of a system subjected to decoherence through a quantum-jump approach. The method is general and can be applied to many different physical systems. As examples, two main source of decoherence are considered: dephasing and spontaneous decay.
Carollo, A.   +3 more
openaire   +5 more sources

A Novel Pre-Synchronization Control Method Based on Open-Loop Phase Detection for the Maritime VSC-HVDC System

open access: yesFrontiers in Energy Research, 2022
Maritime island grids based on renewable energy are being rapidly developed, which poses a new challenge to the traditional pre-synchronization process of grid connection.
Jianquan Shi   +3 more
doaj   +1 more source

Modelling and vector control of dual three‐phase PMSM with one‐phase open

open access: yesIET Electric Power Applications, 2021
This study proposes a generic mathematical modelling and decoupling fault‐tolerant vector control for dual three‐phase permanent magnet synchronous machine (PMSM) with one phase open based on the conventional dual three‐phase voltage source inverters ...
Yashan Hu, Z. Q. Zhu, Zhan‐yuan Wu
doaj   +1 more source

Geometric phases and quantum phase transitions in open systems [PDF]

open access: yesPhysical Review E, 2008
ReVTeX style, 6 figures. Accepted for publication in Phys. Rev. E (Rapid Communication)
Nesterov, Alexander I.   +1 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy