Results 81 to 90 of about 34,461,409 (228)

Classification of the Multiple Stages of Parkinson’s Disease by a Deep Convolution Neural Network Based on 99mTc-TRODAT-1 SPECT Images

open access: yesMolecules, 2020
Single photon emission computed tomography (SPECT) has been employed to detect Parkinson’s disease (PD). However, analysis of the SPECT PD images was mostly based on the region of interest (ROI) approach. Due to limited size of the ROI, especially in the
Shih-Yen Hsu   +9 more
doaj   +1 more source

Shear wave velocity-based new procedure for assessing seismic liquefaction triggering of sand-gravel soils

open access: yesYantu gongcheng xuebao, 2022
The shear wave velocity Vs is one of the most basic parameters for characterizing the dynamic behaviours of soils, and it is also an index for assessing the seismic liquefaction resistance of sand-gravel soils. To explore the influences of gravel content
CHEN Guo-xing 1, 2, SUN Su-yu 1, WU Qi 1, 2, HANG Tian-zhu 1
doaj   +1 more source

Coannihilation Scenarios and Particle Spectroscopy in SU(4)_c x SU(2)_L x SU(2)_R

open access: yes, 2009
We identify a variety of coannihilation scenarios in a supersymmetric SU(4)_c x SU(2)_L x SU(2)_R model with discrete left-right symmetry. Non-universal gaugino masses, compatible with the gauge symmetry, play an essential role in realizing gluino and ...
Ilia Gogoladze   +3 more
core   +1 more source

Utility of su(1,1)-Algebra in a Schematic Nuclear su(2)-Model [PDF]

open access: yes, 2001
The su(2)-algebraic model interacting with an environment is investigated from a viewpoint of treating the dissipative system. By using the time-dependent variational approach with a coherent state and with the help of the canonicity condition, the time ...
Akaike, H.   +5 more
core   +2 more sources

An imbalance in blood collection and demand is anticipated to occur in the near future in Taiwan

open access: yesJournal of the Formosan Medical Association, 2022
Due to excessive clinical blood usage and a rapidly aging population, an impending blood shortage in Taiwan is inevitable. This study aimed to determine the potential blood deficit in Taiwan in 2030.
Wen-Jie Liu   +5 more
doaj   +1 more source

SU(4)_c x SU(2)_L x SU(2)_R model from 5D SUSY SU(4)_c x SU(4)_{L+R}

open access: yes, 2001
We investigate supersymmetric $SU(4)_c\times SU(4)_{L+R}$ theory in 5 dimensions whose compactification on a $S^{(1)}/Z_2$ orbifold yields N=1 supersymmetric $SU(4)_c\times SU(2)_L\times SU(2)_R$ supplemented by a $\tl{U}(1)$ gauge symmetry.
A. Hebecker   +67 more
core   +1 more source

Comparing improved actions for SU(2) [PDF]

open access: yes, 1997
In order to help the user in choosing the right action a performance comparison is done for seven improved actions. Six of them are Symanzik improved, one at tree-level and two at one-loop, all with or without tadpole improvement.
Alford   +10 more
core   +2 more sources

A Comparative Analysis of a Nonlinear Phase Space Evolution of SU(2) and SU(1,1) Coherent States

open access: yesQuantum Reports
We carried out a comparative study of the phase space evolution of SU(2) and SU(1,1) coherent states generated by the same nonlinear two-mode Hamiltonian.
Rodrigo D. Aceves   +3 more
doaj   +1 more source

Asymptotically free SU(2) × SU(2) × SU(4) model of unified interaction [PDF]

open access: yesPhysics Letters B, 1977
Abstract An asymptotically free SU(2) × SU(2) × SU(4) model of unified interaction is constructed. The gauge coupling constants are taken equal (in the order of magnitude) to the electromagnetic one. The strong interaction and the quark confinement is provided for by a gluonic mechanism. Some physical consequence of the model are briefly discussed.
openaire   +1 more source

Seepage-stress-cracking analysis of concrete lining under high internal pressure

open access: yesYantu gongcheng xuebao
Internal water leakage induced by concrete lining cracking under high internal pressure is a frequent challenge in the operation of pressure tunnels.
JIN Junchao 1, 2, JING Laihong 1, 2, SONG Zhiyu 1, 2, SU Kai 3, YANG Fengwei 1, 2, LIU Guangkun 1, 2
doaj   +1 more source

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