Results 51 to 60 of about 367,641 (251)

Design of Integral Controllers for Nonlinear Systems Governed by Scalar Hyperbolic Partial Differential Equations

open access: yes, 2017
The paper deals with the control and regulation by integral controllers forthe nonlinear systems governed by scalar quasi-linear hyperbolic partial differentialequations.
Andrieu, Vincent   +2 more
core   +3 more sources

Association of CDKN2A/B Homozygous Deletion and Extent of Resection With Survival of Patients With WHO CNS5 Grade 4 Astrocytoma

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives WHO grade 4 astrocytomas are associated with poor prognosis, and their prognostic factors remain controversial. This study aimed to identify the prognostic factors and develop a management algorithm for these patients. Methods This study retrospectively included 151 CNS5 adult grade 4 astrocytomas from two medical centers.
Jiawei Cai   +13 more
wiley   +1 more source

Nonlinear dynamic analysis of nuclear fuels considering thermo–elastic–plastic–creep phenomena

open access: yesAdvances in Mechanical Engineering, 2016
Recently, research on the behavior of nuclear fuel rods in accident situations was performed. The research conducted was very sophisticated and involved complex tasks related to thermal, elastic, plastic, and creep phenomena.
Young-Doo Kwon   +2 more
doaj   +1 more source

Nonlinear Seismic Performance of RC Structures with Different Floor by Capacity Spectrum Method [PDF]

open access: yesJournal of Structural and Construction Engineering, 2019
Civil engineering structures as well as office or apartment building are affected by earthquakes. In some buildings, few or no walls are provided at the first story (pilot).
علی کارگران, Ali Kheyroddin
doaj   +1 more source

Non linear evolution of Alfvén wave in the solar atmosphere [PDF]

open access: yes, 2005
We investigate the non-linear evolution of Alfvén waves in the solar atmosphere and wind, from the photosphere out to the Earth’s orbit. Photosphere and chromosphere are modeled as isothermal layers in static equilibrium, connecting across the transition
Oughton, Sean, Velli, M., Verdini, A.
core   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

Nonlinear Pushover Analysis of Retrofitted Transmission Towers Under Static Wind Loads

open access: yesBuildings
This study numerically investigated retrofitted transmission towers subjected to static wind loads using nonlinear pushover analysis, emphasizing enhanced structural resilience and safety.
Quang-Viet Vu, Hyeok-Ju Lee, Jae-Min Kim
doaj   +1 more source

Progressive collapse scenario in steel structures with irregularity in height

open access: yesGrađevinar, 2021
the overload caused by removal of these elements can cause damage and Progressive Collapse (PC) in structures. Therefore, the effect of sudden column removal and structural capacity against PC scenarios in medium and high-rise buildings is investigated ...
Ali Esfandiari Fard   +2 more
doaj   +1 more source

The Analysis of Static Stress in Coil Springs with Nonlinearity

open access: yesBulletin of JSME, 1986
The load-deflection relation and stress characteristics of coil springs with variable mean coil radii, variable wire diameters, and variable pitch angles were analyzed by using the finite element method. Nonlinear effects due to contact between the wire and the seat and or/ due to contact between adjacent coils were considered in the analysis ...
Takeshi SAWANOBORl, Masanobu NAKAMURA
openaire   +2 more sources

Nonlinear Static Analysis by Finite Elements of a Fujian Hakka Tulou [PDF]

open access: yesIABSE Reports, 2019
<p>Hakka Tulous are massive circular earth constructions of the Fujian Province, China, included in the UNESCO World Heritage list. They are subjected to earthquakes of medium magnitude, but their response to the seismic action is not yet investigated in depth.
Briseghella B.   +5 more
openaire   +5 more sources

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