Results 71 to 80 of about 142,078 (293)
British Educational Research Journal, EarlyView.Abstract Recruiting and retaining school leaders is a challenge in many systems worldwide. Previous research has identified three distinct ways in which succession planning can be conceptualised and approached: a ‘pipeline’ approach seeks to match supply and demand for the posts that need filling; a ‘pool’ strategy involves proactively identifying and ...
Toby Greany +3 more
wiley +1 more source
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
Journal of Algebra, 2003 The purpose of this paper is to study finite-dimensional Lie algebras over a field k of characteristic zero which admit a commutative polarization (CP). Among the many results and examples, it is shown that, if k is algebraically closed, the nilradical N of a parabolic subalgebra in A_n and C_n has such a CP.
ELASHVILI, Alexander, OOMS, Alfons
openaire +4 more sources
British Educational Research Journal, EarlyView.Abstract The intersection of economic conditions and early years education has long been debated, particularly where financial constraints shape educational practice and professional realities. Türkiye, characterised by high inflation and structural vulnerabilities in purchasing power parity, provides a critical context for examining how economic ...
Ebru Aydın, Şerif Yüksel
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
MATHEMATICA SCANDINAVICA, 1988 Let \({\mathcal B}\) be a Banach space, \(\sigma\) a \(C_ 0\)-group of isometries of \({\mathcal B}\) with generator \(H\), and \({\mathcal D}\subseteq D(H)\) a \(\sigma\)-invariant core of \(H\). Suppose \(K:{\mathcal D}\to {\mathcal B}\) is a dissipative operator satisfying \[ 1.\quad \| Ka\| \leq k_ 0(\| Ha\| \vee \| a\|),\quad a\in {\mathcal D}, \]
Batty, Charles J.K., Robinson, Derek W.
openaire +4 more sources
Addressing racialised awarding gap in higher education: Insights from personal tutors
British Educational Research Journal, EarlyView.Abstract Situated within a wider cross‐institutional research project, this article provides an in‐depth case study of one higher education (HE) institution, focusing on how personal tutors make sense of racialised degree awarding disparities for both undergraduate and postgraduate students, how they perceive their responsibilities, the challenges and ...
Benjamin Ajibade +3 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
Carbon Energy, EarlyView.This review systematically summarizes recent progress in electrolyte‐regulated aqueous Zn–I2 batteries (AZIBs). It outlines the fundamentals of AZIBs along with their main challenges, and then analyzes electrolyte‐engineering strategies that improve both two‐ and four‐electron reactions.
Yucong Wang +10 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