Results 61 to 70 of about 189,459 (306)

Triaxial tests on frozen ground: formulation and modelling [PDF]

open access: yes, 2013
Artificial Ground Freezing (AGF) is a controllable process that can be used by engineers to stabilise temporarily the ground, provide structural support and/or exclude groundwater from an excavation until construction of the final lining provides ...
Casini, Francesca   +3 more
core  

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji   +13 more
wiley   +1 more source

Performance-Based Multi-Objective Optimization of Four-Limb CFST Lattice Columns

open access: yesBuildings
In this paper, the low-cycle reciprocating load test was carried out on four-limb concrete-filled steel tubular (CFST) lattice columns with different slenderness ratios and axial compression ratios, and the seismic performance was studied.
Junjie He   +6 more
doaj   +1 more source

Numerical and experimental studies of compression-tested copper, mortar contact method

open access: yesDyna, 2017
Simulation of compression test of copper is made with the mortar contact method and assuming: axial symmetry, multiple point constraint of type plane, concentrate load and coulomb friction.
Gabriel Jesús Torrente Prato
doaj   +1 more source

Experimental studies on the shear resistance of original coal-shale joint [PDF]

open access: yes, 2017
Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
core   +2 more sources

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick   +19 more
wiley   +1 more source

Study on triaxial test method and failure criterion of asphalt mixture

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2015
Asphalt mixture is the most widely used pavement material all over the world. In China, more than 90% of service expressways are asphalt pavement. However, current asphalt pavement design method still has irrationality. Even though maximum tensile stress
Jianlong Zheng, Tuo Huang
doaj   +1 more source

Experimental Study on the Effect of Freeze-Thaw Cycles on Axial Tension and Compression Performance of Concrete after Complete Carbonization

open access: yesAdvances in Civil Engineering, 2021
The effect of freeze-thaw cycles on the axial tension and axial compression properties of completely carbonized concrete are investigated in this study. Three grade concrete specimens (C30, C40, and C45) were fabricated.
Dafu Cao   +4 more
doaj   +1 more source

Triaxial compression tests on a crushable sand in dry and wet conditions [PDF]

open access: yes, 2015
A calcareous sand from the Persian Gulf is subjected to a series of dry and fully drained saturated triaxial shear tests. The samples are prepared at relative densities of 65% and either left dry or saturated. They are consolidated to confining pressures
Haegeman, Wim, Van Impe, PO, Wils, L
core   +1 more source

The gravity of magnetic stresses and energy

open access: yes, 2008
In the framework of designing laboratory tests of relativistic gravity, we investigate the gravitational field produced by the magnetic field of a solenoid.
C. Misner   +5 more
core   +1 more source

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