Results 11 to 20 of about 5,914,333 (296)
Conservation Subdivision: Design Phase – Location of Conserved Open Spaces
WEC276, a 5-page illustrated fact sheet by Mark Hostetler, focuses on decisions made in the design phase — what percentage of the site will be conserved as open space and where to locate it so as to maximize biodiversity values.
Mark E. Hostetler
doaj +5 more sources
Subdiffusive Phases in Open Clean Long-Range Systems [PDF]
We show that a one-dimensional ordered fermionic lattice system with power-law-decaying hopping, when connected to two baths at its two ends with different chemical potentials at zero temperature, features two phases showing sub-diffusive scaling of conductance with system size.
Archak Purkayastha +2 more
openaire +3 more sources
Low-Order Space Harmonic Modeling of Asymmetrical Six-Phase Induction Machines
Multiphase machines are commonly analyzed using vector space decomposition modeling technique, where the original phase variables are decomposed into multiple orthogonal subspaces.
Ayman S. Abdel-Khalik +3 more
doaj +1 more source
Postfault Control of Scalar (V/f) Controlled Asymmetrical Six-Phase Induction Machines
With the accelerated development in semiconductor power devices along with the dictated rigorous reliability standards in some industrial sectors, the application of a medium-voltage high-power multiphase induction machine with multiple three-phase ...
Ayman S. Abdel-Khalik +3 more
doaj +1 more source
Multi-phase motors and generators are regarded with great fault tolerance capability, especially on open-circuit faults. Various mathematics analytical methods are applied for their fault control.
Chen Huang +3 more
doaj +1 more source
Geometric phase for an adiabatically evolving open quantum system [PDF]
We derive an elegant solution for a two-level system evolving adiabatically under the influence of a driving field with a time-dependent phase, which includes open system effects such as dephasing and spontaneous emission.
A. Ekert +5 more
core +1 more source
Post‐fault operation strategy for single open‐phase fault in three‐phase induction motor drives
Single open‐phase fault (SOPF) in three‐phase induction motor (TPIM) drives leads to undesired performances and in some cases shutdown of the drive system.
Hadi Abbasi +3 more
doaj +1 more source
In this paper, a vector controlled PMSM drive based on a proportional–resonance controller (PR) under open circuit fault (OCF) is proposed. The PR controller is used to generate the stator voltages.
Haneen Ghanayem +2 more
doaj +1 more source
Temporary mirror symmetry breaking and chiral excursions in open and closed systems [PDF]
The reversible Frank model is capable of amplifying the initial small statistical deviations from the idealized racemic composition. This temporary amplification can be interpreted as a chiral excursion in a dynamic phase space.
Avetisov +20 more
core +2 more sources
Investigating the effects of faulty induction machine in distribution systems
In addition to its use as the workhorse in the industry, induction machines are fast gaining popularity in renewable energy applications, hence; the need for continual study on the performances of the machines.
Omonowo D. Momoh +2 more
doaj +1 more source

