Results 31 to 40 of about 475,511 (316)

Nuclear magnetic resonance analysis of freeze-thaw damage in natural pumice concrete

open access: yesMateriales de Construccion, 2016
This paper presents an analysis of the damage propagation features of the pore structure of natural pumice lightweight aggregate concrete (LWC) under freeze-thaw cyclic action.
Xiaoxiao Wang   +4 more
doaj   +1 more source

Various time-scales of relaxation [PDF]

open access: yesPhysical Review D, 2016
Via gauge-gravity duality, relaxation of far-from-equilibrium initial states in a strongly coupled gauge theory has been investigated. In the system we consider in this paper there are two ways where the state under study can deviate from its equilibrium: anisotropic pressure and time-dependent expectation value of a scalar operator with Δ=3.
Ali-Akbari, M.   +3 more
openaire   +2 more sources

Waveform Relaxation with Asynchronous Time-integration

open access: yesACM Transactions on Mathematical Software, 2022
We consider Waveform Relaxation (WR) methods for parallel and partitioned time-integration of surface-coupled multiphysics problems. WR allows independent time-discretizations on independent and adaptive time-grids, while maintaining high time-integration orders.
Peter Meisrimel, Philipp Birken
openaire   +3 more sources

Temperature dependence of relaxation spectra for highly hydrated gluten networks

open access: yes, 2010
In the present investigation, the temperature dependence (0e50 C) of the relaxation spectrum of hydrated gluten was studied using novel numerical algorithms. Tikhonov regularization, in conjunction with the L-curve criterion for optimal calculation of
Kasapis, Stefan, Kontogiorgos, Vassilis
core   +1 more source

Asymptotic analysis of multiple-relaxation-time lattice Boltzmann schemes for mixture modeling [PDF]

open access: yes, 2008
A new lattice Boltzmann model for simulating ideal mixtures has been developed by means of the multiple-relaxation-time (MRT) approach. When compared with the previous single-relaxation-time (SRT) formulation of the same model, based on the continuous ...
Asinari, Pietro
core   +1 more source

The Effect of Temperature on the Rheological Behavior of Polyethylene Oxide (Peo) Solutions

open access: yesApplied Rheology, 2013
The rheological properties of polyethylene oxide (PEO) solutions were investigated, at different temperatures, using small and large deformation rheological methods.
Bahlouli Mohamed Ilies   +4 more
doaj   +1 more source

Thermoelectric performances for both p- and n-type GeSe

open access: yesRoyal Society Open Science, 2021
In this paper, the thermoelectric properties of p-type and n-type GeSe are studied systematically by using first principles and Boltzmann transport theory.
Qiang Fan   +3 more
doaj   +1 more source

Application of the piecewise constant function approximation method to modified point kinetics

open access: yesBrazilian Journal of Radiation Sciences
This work uses the numerical method known as Piecewise Constant Approximation, PCA, to solve the equations of modified point kinetics for six groups of delayed neutron precursors.
Bruno Nascimento Martins   +2 more
doaj   +1 more source

Predicting the status of lymphovascular space invasion using quantitative parameters from synthetic MRI in cervical squamous cell carcinoma without lymphatic metastasis

open access: yesFrontiers in Oncology
PurposeTo investigate the value of quantitative longitudinal relaxation time (T1), transverse relaxation time (T2), and proton density (PD) maps derived from synthetic magnetic resonance imaging (MRI) for evaluating the status of lymphovascular space ...
Limei Guo   +7 more
doaj   +1 more source

Selected Aspects of Computer Modeling of Reinforced Concrete Structures

open access: yesArchives of Civil Engineering, 2016
The paper presents some important aspects concerning material constants of concrete and stages of modeling of reinforced concrete structures. The problems taken into account are: a choice of proper material model for concrete, establishing of compressive
Szczecina M., Winnicki A.
doaj   +1 more source

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