Results 51 to 60 of about 7,764,115 (299)

3D CONTACT PROBLEM ON INTERACTION BETWEEN FLEXIBLE WEDGE AND TWO PUNCHES UNDER FRICTION

open access: yesВестник Донского государственного технического университета, 2018
The spatial contact problem for the flexible wedge is investigated in the quasi-static formulation when two identical elliptic rigid punches are symmetrically impressed into one face of the wedge under friction. The other wedge face is stress-free.
Dmitry Alexandrovich Pozharskiy   +1 more
doaj  

Determining a Surrogate Contact Pair in a Hertzian Contact Problem [PDF]

open access: yesJournal of Tribology, 2011
Laboratory testing of contact phenomena can be prohibitively expensive if the interacting bodies are geometrically complicated. This work demonstrates means to mitigate such problems by exploiting the established observation that two geometrically dissimilar contact pairs may exhibit the same contact mechanics.
Anthony P, Sanders, Rebecca M, Brannon
openaire   +2 more sources

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Influence of Material Properties on Major Tribological Factors at a Nanoscale Sliding Electric Contact of Probe Devices

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2013
Precise processes or devices utilizing scanning nanoprobes, e.g., probe-based nanolithography and probe-based data storage, are state-of-the-art technologies that can handle nm-sized tiny patterns.
Yasushi TOMIZAWA   +2 more
doaj   +1 more source

Influenza Vaccination Responses in Disabled Stroke Patients: A Single‐Center Prospective Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to investigate the immunological response to influenza vaccination, the incidence and severity of influenza infection, and the side effects of the vaccination in patients with ischemic stroke. Methods This prospective observational study was conducted between 2023 and 2024 at Ramathibodi Hospital.
Achiraya Pakngao   +5 more
wiley   +1 more source

3D CONTACT PROBLEM ON INTERACTION BETWEEN FLEXIBLE WEDGE AND TWO PUNCHES UNDER FRICTION

open access: yesAdvanced Engineering Research, 2012
The spatial contact problem for the flexible wedge is investigated in the quasi-static formulation when two identical elliptic rigid punches are symmetrically impressed into one face of the wedge under friction. The other wedge face is stress-free.
Dmitry Alexandrovich Pozharskiy   +1 more
doaj  

Contact Interaction of a Rigid Stamp and a Porous Elastic Cylinder of Finite Dimensions

open access: yesMathematics
This article investigates an axisymmetric contact problem involving the interaction between a rigid cylindrical stamp and a poroelastic cylinder of finite dimensions, based on the Cowin–Nunziato theory of media with voids.
Mikhail I. Chebakov   +2 more
doaj   +1 more source

The Physically Nonlinear Analysis of Circular Plate on Deformable Foundation

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2011
A circular reinforced concrete plate on deformable foundation is investigated. The foundation is composed of three layers of soil which are defined as isotropically nonlinear materials with variable physical properties. The reinforced plate is treated as
Valentinas Jankovski   +1 more
doaj   +1 more source

A contact‐stabilized Newmark method for dynamical contact problems [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2007
AbstractThe numerical integration of dynamical contact problems often leads to instabilities at contact boundaries caused by the non‐penetration condition between bodies in contact. Even an energy dissipative modification (see, e.g. (Comp. Meth. Appl. Mech. Eng. 1999; 180:1–26)), which discretizes the non‐penetration constraints implicitly, is not able
Deuflhard, Peter   +2 more
openaire   +2 more sources

Fatigue analysis of catenary contact wires for high speed trains [PDF]

open access: yes, 2011
The fatigue fracture is one of the most critical failures which may occur on the high speed network because it is undetectable and it has a huge impact on traffic disruption.
MAITOURNAM, Habibou   +4 more
core  

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