Results 11 to 20 of about 39,997,508 (266)

Clinical and Modifiable Factors Associated With Disability and Relapse in MOGAD: A Multicentre Cohort Study. [PDF]

open access: yesAnn Clin Transl Neurol
ABSTRACT Background Factors associated with relapse course and disability in myelin oligodendrocyte glycoprotein antibody‐associated disease (MOGAD) remain incompletely understood. Objectives To identify clinical and modifiable factors associated with relapse and disability in MOGAD. Methods In this ambispective multicentre cohort study using data from
Wang Y   +23 more
europepmc   +2 more sources

Finite-time stochastic input-to-state stability and observer-based controller design for singular nonlinear systems [PDF]

open access: yes, 2020
This paper investigated observer-based controller for a class of singular nonlinear systems with state and exogenous disturbance-dependent noise. A new sufficient condition for finite-time stochastic input-to-state stability (FTSISS) of stochastic ...
Cao, Jinde   +4 more
core   +1 more source

Evaluation of nonlinear behavior of High Performance Fiber Reinforced Cementitious Composite (HPFRCC) Frames [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
Replacing of conventional concrete by High Performance Fiber Reinforced Cementitious Composite (HPFRCC) could improve tensile strength, bending strength, shear strength and other capability of behaviour such as ductility, energy absorption and toughness.
mohammad hossein saghafi   +2 more
doaj   +1 more source

Invariant analysis and explicit solutions of the time fractional nonlinear perturbed Burgers equation [PDF]

open access: yes, 2015
The Lie group analysis method is performed for the nonlinear perturbed Burgers equation and the time fractional nonlinear perturbed Burgers equation. All of the point symmetries of the equations are constructed.
Wang, Gangwei, Xu, Tianzhou
core   +1 more source

Linear and Nonlinear Earthquake Analysis for Strength Evaluation of Masonry Monument of Neoria

open access: yesBuildings, 2023
An evaluation of the seismic behavior of a massive masonry monument with vaults, namely, the Neoria complex at the old port of Chania, is presented here. The usage of modal response analysis requires the combination of many eigenmodes in order to capture
Maria E. Stavroulaki   +5 more
doaj   +1 more source

Nonlinear Dynamic Analyses Utilising Macro-Models of Reinforced Concrete Building Structures and Site-Specific Accelerograms

open access: yesCivilEng, 2023
This paper aims to guide structural engineers on how to apply the rapid nonlinear time history analysis (RNLTHA) procedure effectively to predict seismic demand, taking into account ductility and overstrength, and effects of dynamic phenomena including ...
Prashidha Khatiwada   +3 more
doaj   +1 more source

Nonlinear analysis of a hoist tower for seismic loads [PDF]

open access: yesArchives of Civil Engineering, 2022
In recent years, the intensity of the loads caused by mining activity has increased in Poland. This exploitation is often carried out in urbanized areas, so their operation on structures is not only a social problem, but also a challenge for engineers ...
Filip Pachla, Tadeusz Tatara
doaj   +1 more source

Lie symmetry analysis, exact solutions and conservation laws for the time fractional modified Zakharov–Kuznetsov equation [PDF]

open access: yes, 2017
In this work, Lie symmetry analysis (LSA) for the time fractional modified Zakharov–Kuznetsov (mZK) equation with Riemann–Liouville (RL) derivative is analyzed.
Yusuf, Abdullahi   +3 more
core   +1 more source

Assessment of Torsional Amplification of Drift Demand in a Building Employing Site-Specific Response Spectra and Accelerograms

open access: yesCivilEng, 2023
This paper aims at giving structural designers guidance on how to transform seismic demand on a building structure from two-dimensional (2D) to three-dimensional (3D) in an expedient manner, taking into account amplification of the torsional actions ...
Yao Hu   +3 more
doaj   +1 more source

Evaluation of Intermediate Reinforced Concrete Moment Frame Subjected to Truck Collision [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2022
In this study, the progressive collapse of reinforced concrete structures due to vehicle collision to the columns of the ground floor was modeled and examined. For this purpose, a four-story reinforced concrete building with the intermediate moment frame
Seyed Reza Siadati   +2 more
doaj   +1 more source

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