Results 61 to 70 of about 141,707 (269)
Simulation of commutation process DC traction motor of quarry dump truck [PDF]
Омский научный вестник, 2020 The article considers a nonlinear multiple regression model based on which a model of the commutation process of the DC traction motor of a quarry dump truck.
V. V. Kharlamov +2 more
doaj +1 more source
British Educational Research Journal, EarlyView.Abstract In early childhood education many researchers and professionals across the world have embraced the United Nations Convention on the Rights of the Child's requirement to include young children in decision‐making. In the context of ongoing discussion about young children's capacity to share their views and opinions about matters affecting them ...
Laura Lundy +3 more
wiley +1 more source
Harmonic analysis of AC-bus voltage in converter station based on time–frequency transformation
The Journal of Engineering, 2018 The disturbance of the AC system has become one of the main causes of commutation failure in the high voltage direct current (HVDC) transmission system. Here, the time–frequency transformation method is used to analyse the AC-bus voltage disturbance from
Zhao Dandan +6 more
doaj +1 more source
Exactness of the Fock space representation of the q-commutation relations
, 2010 We show that for all q in the interval (-1,1), the Fock representation of the q-commutation relations can be unitarily embedded into the Fock representation of the extended Cuntz algebra.
A. Nou +11 more
core +1 more source
British Educational Research Journal, EarlyView.Abstract This paper explores the challenges and opportunities surrounding the recruitment and retention of minority ethnic teachers in England. Drawing on interview data from 33 teachers and school leaders of diverse ethnic backgrounds, it investigates whether racialised barriers identified in earlier research have shifted in the current context of ...
Antonina Tereshchenko +5 more
wiley +1 more source
Supersymmetric Canonical Commutation Relations
, 2005 We present unitarily represented supersymmetric canonical commutation relations which are subsequently used to canonically quantize massive and massless chiral,antichiral and vector fields.
FLORIN CONSTANTINESCU +4 more
core +4 more sources
British Educational Research Journal, EarlyView.Abstract Improving retention and graduate outcomes for students from a widening participation (WP) background is key to achieving more equitable outcomes. However, evidence suggests WP students experienced different challenges than their peers during the COVID‐19 pandemic.
Wilhelmiina Toivo +4 more
wiley +1 more source
Two-step commutation control of switched reluctance motor based on PWM
The Journal of Engineering, 2019 Aiming at the noise suppression of switched reluctance machine (SRM), the two-step commutation control method is improved. Combining this with pulse width modulation (PWM), the optimisation problem of the switching angle is studied and analysed and given
Chuan Yu +3 more
doaj +1 more source
The Problem of Constructing the Current Operators in Quantum Field Theory [PDF]
, 1995 Lorentz invariance of the current operators implies that they satisfy the well-known commutation relations with the representation operators of the Lorentz group.
Lev, Felix M.
core +2 more sources
Soliton Solutions of the Toda Hierarchy on Quasi-Periodic Backgrounds Revisited
, 2007 We investigate soliton solutions of the Toda hierarchy on a quasi-periodic finite-gap background by means of the double commutation method and the inverse scattering transform.
Alonso +16 more
core +1 more source