Results 321 to 330 of about 2,106,509 (356)

Rice Husk-Derived MCM-41 for Efficient Hg(II) Removal: Performance, Mechanism, and Environmental Safety in Real Water Matrices. [PDF]

open access: yesNanomaterials (Basel)
Bocanegra N   +5 more
europepmc   +1 more source

The initial response of an idealized granular material

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
In this paper, we propose a theoretical model to study the elastic response of a granular material idealized as a random aggregate of identical, elastic, frictional spheres that has been isotropically compressed. When we consider that contacting particles move according to the average deformation, the effective shear modulus is over-predicted with ...
La Ragione, L., Jenkins, J. T.
openaire   +2 more sources

The Material and Initial Symptoms

1953
This study is based upon a critically selected series of 117 patients with chromophobe adenomas admitted to the Neurological Institute of New York or the Medical Services of the Columbia-Presbyterian Medical Center, from 1929 to 1948. The histologic material was prepared and made available by the Department of Pathology, Division of Neuropathology ...
John I. Nurnberger, Saul R. Korey
openaire   +1 more source

Materials Genome Initiative

Chemical & Engineering News Archive, 2013
In June 2011, the White House set out an audacious goal for materials science: Cut in half the time it takes to get a newly designed material from the lab to the marketplace. Even the program’s name—the Materials Genome Initiative (MGI), inspired by the massive Human Genome Project—was chosen to reflect that broad ambition.
openaire   +1 more source

Anisotropic Hardening of Initially Orthotropic Materials

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1979
AbstractA hardening model for an orthotropic material is proposed. The corresponding anisotropic parameters are the components of a fourth order tensor function of the plastic strain, entering a quadratic equation for the yield surface. Assuming polynomial dependence on the plastic strain, the most general form of a polynomial fourth order orthotropic ...
openaire   +1 more source

Laser-initiated ablation of materials

2015
Laser micromachining is now a common method of surface modification and machining; utilizing a broad spectrum of wavelengths, wave forms, and pulse durations. The most accurate bulk geometric modification is achieved by the use of ablation via the application of short wavelengths to deliver large photons for absorption in minimal skin depth.
Dowding, C., Borman, A.
openaire   +2 more sources

The initiation of flow in granular materials

Powder Technology, 1991
Abstract The effects of rotation of principle stress directions on the initiation of flow in particulate materials have been studied experimentally in the Directional Shear Cell. Four materials were tested: sand, coal, kaolinite and bentonite. A range of dampness from dry to full saturation was covered.
J.R.F. Arthur   +3 more
openaire   +1 more source

Initial Damage of Composite Materials

2019
In composite materials, damage occurs even without excessive loading, because of the discrepancy between material parameters of adhered materials. This damage (damage of nonconformity) is expressed as a violation of the continuity at the interface. A mathematical model of the interaction of inclusion particles and the composite matrix, based on taking ...
Vladimir S. Shorkin   +5 more
openaire   +1 more source

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