scholarly journals Comment on “Elementary formula for the Hall conductivity of interacting systems”

2014 ◽  
Vol 89 (12) ◽  
Author(s):  
Steven H. Simon ◽  
Fenner Harper ◽  
N. Read
Keyword(s):  
Hall Conductivity ◽  
Elementary Formula ◽  
Interacting Systems

scholarly journals Reply to “Comment on ‘Elementary formula for the Hall conductivity of interacting systems' ”

2014 ◽  
Vol 89 (12) ◽  
Author(s):  
Titus Neupert ◽  
Luiz Santos ◽  
Claudio Chamon ◽  
Christopher Mudry
Keyword(s):  
Hall Conductivity ◽  
Elementary Formula ◽  
Interacting Systems

scholarly journals Elementary formula for the Hall conductivity of interacting systems

2012 ◽  
Vol 86 (16) ◽  
Author(s):  
Titus Neupert ◽  
Luiz Santos ◽  
Claudio Chamon ◽  
Christopher Mudry
Keyword(s):  
Hall Conductivity ◽  
Elementary Formula ◽  
Interacting Systems

scholarly journals Effects of energy extensivity on the quantum phases of long-range interacting systems

2021 ◽  
Vol 103 (15) ◽  
Author(s):  
T. Botzung ◽  
D. Hagenmüller ◽  
G. Masella ◽  
J. Dubail ◽  
N. Defenu ◽  
...  
Keyword(s):  
Long Range ◽  
Quantum Phases ◽  
Interacting Systems

scholarly journals Kubo–Bastin approach for the spin Hall conductivity of decorated graphene

2D Materials ◽  
2016 ◽  
Vol 3 (2) ◽  
pp. 024007 ◽  
Author(s):  
Jose H Garcia ◽  
Tatiana G Rappoport
Keyword(s):  
Hall Conductivity ◽  
Spin Hall Conductivity

scholarly journals Collective Losses of Low Power Cage Induction Motors—A New Approach

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1749
Author(s):  
Elzbieta Szychta ◽  
Leszek Szychta
Keyword(s):  
Control System ◽  
Experimental Studies ◽  
Complex Problem ◽  
Accurate Estimation ◽  
New Approach ◽  
Water Pumping ◽  
Efficiency Control ◽  
Interacting Systems ◽  
Cage Induction Motor ◽  
Selection Of

Energy efficiency of systems of water pumping is a complex problem since efficiency of two distinct interacting systems needs to be combined: water and power supply. This paper introduces a non-intrusive method of calculating the so-called “collective losses” of a cage induction motor. The term “collective losses”, which the authors define, allows for accurate estimation of motor efficiency. Control system of a pump determines operating point of a pumping station, and thus its efficiency. General estimated performance characteristics of a motor, components of a control system, are assumed to serve selection of a range of pumping speed variations. Rotational speed has a direct effect on motor load torque, pump power and head, and thus on motor performance. Hellwig’s statistical method was used to specify characteristics of estimated collective losses on the basis of experimental studies of 21 motors rated at up to 2.2 kW. The results of simulations and experiments are used to verify validity and efficiency of the suggested method. The method is non-intrusive, simple to use, and requires minimum data.

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