Results 21 to 30 of about 316,097 (265)

Angular Momentum and Mutually Unbiased Bases [PDF]

open access: yes, 2005
The Lie algebra of the group SU(2) is constructed from two deformed oscillator algebras for which the deformation parameter is a root of unity. This leads to an unusual quantization scheme, the {J2,Ur} scheme, an alternative to the familiar {J2,Jz ...
Kibler, M. R.
core   +3 more sources

Comparison between probability density functions of vertical electric current in solar active regions based on HMI/SDO and SOT/Hinode data

open access: yesSolar-Terrestrial Physics, 2022
Studying electric currents in solar active regions (AR) is an essential step in understanding solar activity in general and solar flares in particular.
Nechaeva A. B.   +2 more
doaj   +1 more source

The uterine junctional zone: A 3-dimensional ultrasound study of patients with endometriosis [PDF]

open access: yes, 2013
The uterine junctional zone (JZ) alterations are correlated with adenomyosis. An accurate evaluation of the JZ may be obtained by 3-dimensional transvaginal sonography (TVS).
Corbett, B   +6 more
core   +1 more source

Study on Surface Subsidence Coefficient of Coal Seam Mining in Northern Shaanxi Mining Area

open access: yesMeikuang Anquan, 2020
In order to solve the problem that the surface subsidence coefficient of shallow buried coal seam is difficult to determine in northern Shaanxi mining area, the data of surface rock displacement parameters in coal seam mining under different topographic ...
LIU Chenguang, LIU Yang, HE Shenglin, FANG Gang, LIANG Xiangyang, HUANG Hao
doaj   +1 more source

Electrically charged finite energy solutions of an $SO(5)$ and an $SU(3)$ Higgs-Chern-Simons--Yang-Mills-Higgs systems in $3+1$ dimensions [PDF]

open access: yes, 2014
We study spherically symmetric finite energy solutions of two Higgs-Chern-Simons--Yang-Mills-Higgs (HCS-YMH) models in $3+1$ dimensions, one with gauge group $SO(5)$ and the other with $SU(3)$. The Chern-Simons (CS) densities are defined in terms of both
Navarro-Lerida, Francisco   +1 more
core   +5 more sources

Real-time dynamics in spin-1/2 chains with adaptive time-dependent DMRG [PDF]

open access: yes, 2004
We investigate the influence of different interaction strengths and dimerizations on the magnetization transport in antiferromagnetic spin-1/2 XXZ-chains.
Corinna Kollath   +6 more
core   +2 more sources

Inter-Rater Agreement for Diagnosing Adenomyosis Using Magnetic Resonance Imaging and Transvaginal Ultrasonography

open access: yesDiagnostics, 2023
Our aim was to compare the inter-rater agreement about transvaginal ultrasonography (TVS) with magnetic resonance imaging (MRI) with regard to diagnosing adenomyosis and for assessing various predefined imaging features of adenomyosis, in the same set of
Johanna K. Andersson   +11 more
doaj   +1 more source

A new approach to secure economic power dispatch [PDF]

open access: yes, 1998
This article presents a new nonlinear convex network flow programming model and algorithm for solving the on-line economic power dispatch with N and N−1 security.
Irving, MR, Xu, GY, Zhu, JZ
core   +1 more source

Manufacturing process differences give Keemun black teas their distinctive aromas

open access: yesFood Chemistry: X, 2023
Traditional Keemun black tea is also known as Congou black tea (CF). Over the last three decades, three other types of Keemun black tea (Jinzhen, JZ; Maofeng, MF; Xiangluo, XL) made by different processing have been introduced into the tea market.
Yujie Xu   +5 more
doaj   +1 more source

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