Results 91 to 100 of about 42,606 (261)

Doped high-Tc cuprate superconductors elucidated in the light of zeros and poles of electronic Green's function

open access: yes, 2010
We study electronic structure of hole- and electron-doped Mott insulators in the two-dimensional Hubbard model to reach a unified picture for the normal state of cuprate high-Tc superconductors.
C. Lanczos   +3 more
core   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

Large-eddy simulation of the flow in a lid-driven cubical cavity

open access: yes, 2007
Large-eddy simulations of the turbulent flow in a lid-driven cubical cavity have been carried out at a Reynolds number of 12000 using spectral element methods.
Emmanuel Leriche   +5 more
core   +2 more sources

Restricted Tweedie stochastic block models

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

Distinct Fermi-Momentum Dependent Energy Gaps in Deeply Underdoped Bi2212

open access: yes, 2006
We use angle-resolved photoemission spectroscopy applied to deeply underdoped cuprate superconductors Bi2Sr2(Ca,Y)Cu2O8 (Bi2212) to reveal the presence of two distinct energy gaps exhibiting different doping dependence.
Devereaux, T. P.   +10 more
core   +1 more source

Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost   +3 more
wiley   +1 more source

Harmonic calculation method for non-synchronous sampling data based on Hermite interpolation

open access: yesDiance yu yibiao
The high cost of power quality monitoring makes it difficult to install them on a large scale in distribution network, resulting in incomplete information on nodal harmonic monitoring.
WANG Ying   +4 more
doaj   +1 more source

Effect of strong correlations on the high energy anomaly in hole- and electron-doped high-Tc superconductors

open access: yes, 2009
Recently, angle-resolved photoemission spectroscopy (ARPES) has been used to highlight an anomalously large band renormalization at high binding energies in cuprate superconductors: the high energy 'waterfall' or high energy anomaly (HEA).
B Moritz   +16 more
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Water waves scattering by floating rigid dock and breakwaters using improved singular boundary method under regular and irregular waves

open access: yesResults in Engineering
This study explores the interaction between water waves and a pair of porous trapezoidal-shaped breakwaters of varying sizes kept at a finite distance apart from a floating rigid dock under regular and irregular waves.
Kailash Chand Swami   +2 more
doaj   +1 more source

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