Results 31 to 40 of about 5,372,457 (283)

A semi-spring and semi-edge combined contact model in CDEM and its application to analysis of Jiweishan landslide

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
Continuum-based discrete element method (CDEM) is an explicit numerical method used for simulation of progressive failure of geological body. To improve the efficiency of contact detection and simplify the calculation steps for contact forces, semi ...
Chun Feng   +3 more
doaj   +1 more source

Empirical definition of the shearing angle and chip-edge contact length when cutting

open access: yes, 2020
Purpose. Simplification of shearing angle determination during chip formation and improving the determination of chip-edge contact length with the corresponding derivation of new calculation empirical formulas. Methodology.

semanticscholar   +1 more source

Effect of contact geometry on the contact stresses in a flat with rounded edge contact

open access: yesFracture and Structural Integrity, 2019
The blade-disc dovetail interface in an aero-engine compressor is characterized by a non-uniform pressure distribution which can be obtained by an equivalent flat with rounded edge-on-plate configuration.
Pankaj Dhaka, Raghu V. Prakash
doaj   +1 more source

Contact Stress Analysis of Traction Drives of a New Type Bearing Reducer

open access: yesJixie chuandong, 2023
An arc is constructed at the end of the planetary wheel profile shaft of the planetary traction drive, and the contact point between the arc and the outer ring and the end face of the solar wheel shaft is kept on the radial traction contact line.
Shu Hongyu, Zhao Liang, Yu Yijie
doaj  

Equilibration of quantum Hall edge states by an Ohmic contact

open access: yes, 2013
Ohmic contacts are crucial elements of electron optics that have not received a clear theoretical description yet. We propose a model of an Ohmic contact as a piece of metal of the finite capacitance $C$ attached to a quantum Hall edge.
Levkivskyi, Ivan P.   +2 more
core   +2 more sources

Spin current in an electron waveguide tunnel-coupled to topological insulator

open access: yes, 2012
We show that electron tunneling from edge states in two-dimensional topological insulator into a parallel electron waveguide leads to the appearance of spin-polarized current in the waveguide.
Sablikov, Vladimir A.   +1 more
core   +1 more source

Where is the Inner Edge of an Accretion Disk Around a Black Hole? [PDF]

open access: yes, 2002
What is meant by the "inner edge" of an accretion disk around a black hole depends on the property that defines the edge. We discuss four such definitions using data from recent high-resolution numerical simulations.
Ebisawa K.   +2 more
core   +2 more sources

When is visual information used to control locomotion when descending a kerb? [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Descending kerbs during locomotion involves the regulation of appropriate foot placement before the kerb-edge and foot clearance over it. It also involves the modulation of gait output to ensure the body-mass is safely and smoothly lowered to
John G Buckley   +3 more
doaj   +1 more source

Edge-Contact Geometry and Anion-Deficit Construction for Activating Ultrathin MoS2 on W17O47 in the Hydrogen Evolution Reaction.

open access: yesInorganic Chemistry, 2019
Rational design and precise fabrication of catalysts with high active site exposure and efficient charge transport are highly desirable but challenging.
Rui Jiang   +6 more
semanticscholar   +1 more source

Ultra Low Specific Contact Resistivity in Metal-Graphene Junctions via Atomic Orbital Engineering

open access: yes, 2018
A systematic investigation of graphene edge contacts is provided. Intentionally patterning monolayer graphene at the contact region creates well-defined edge contacts that lead to a 67% enhancement in current injection from a gold contact.
Cusati, Teresa   +7 more
core   +1 more source

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