Results 101 to 110 of about 998,628 (342)

Harmonic maps, SU (N) skyrme models and yang-mills theories [PDF]

open access: yes, 2002
This thesis examines the construction of static solutions of (3+l)-dimensional SU{N) Skyrme models, usual and alternative, and pure massive SU(N) Yang-Mills theories.
Wospakrik, Hans Jacobus
core  

An O(h6) cubic spline interpolating procedure for harmonic functions [PDF]

open access: yes, 1989
An O(h6) method for the interpolation of harmonic functions in rectangular do- mains is described and analysed. The method is based on an earlier cubic spline tech- nique [7], and makes use of recent results concerning the a posteriori correction of ...
Soares, M J, Papamichael, N
core   +3 more sources

General analysis of type I second-harmonic generation with elliptical Gaussian beams

open access: yes, 1997
One can enhance second-harmonic generation in angle-tuned crystals by focusing the fundamental to an elliptical waist in the crystal. We present a general analysis for type I phase-matched uniaxial and biaxial crystals that will find particular ...
Walz, Jochen   +4 more
core   +1 more source

Design of the RLC Filter in Cascaded Inverter System

open access: yesKongzhi Yu Xinxi Jishu, 2013
The cascaded inverter is widely used in high-voltage large-capacity system because of the sine output and low cost. However, in some special conditions, the harmonics component of output voltage will intensify heating of the reactor and motor windings ...
WANG Shiping   +4 more
doaj  

Simulation and experiment of coal desulfurization model

open access: yesGong-kuang zidonghua, 2014
A new coal desulfurization model of dielectric barrier discharge was built, and based on it, factors impacting on effect of desulfurization discharge, including dielectric types, dielectric thickness, gap spacing, supply voltage, power frequency were ...
XU Yunzhi   +5 more
doaj   +1 more source

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi   +17 more
wiley   +1 more source

Regularity and irregularity of harmonic maps into manifolds

open access: yes, 2022
reservedWe introduce the definition of minimizing, stationary and weakly harmonic maps. We prove the monotonicity formula and we give some examples of harmonic maps. Then we state the epsilon-regularity theorem for energy minimizing harmonic maps, due to
DEL GRANDE, LEONARDO
core  

Cubic spline interpolation of harmonic functions [PDF]

open access: yes, 1973
It is shown that for the two dimensional Laplace equation a univariate cubic spline approximation in either space direction together with a difference approximation in the other leads to the well-known nine-point finite-difference formula.
Whiteman, J R, Papamichael, N
core   +3 more sources

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers   +19 more
wiley   +1 more source

Some properties of harmonic mappings [PDF]

open access: yes
A harmonic map between Riemannian manifolds satisfies, in local coordinates, a second order semi-linear elliptic system of equations. This system of equations arise as the Euler-Lagrange equations of a natural Dirichlet or energy integral on maps between
Sealey, Howard C. J.
core  

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