Results 51 to 60 of about 812,168 (277)

The noncommutative Lorentzian cylinder as an isospectral deformation

open access: yes, 2003
We present a new example of a finite-dimensional noncommutative manifold, namely the noncommutative cylinder. It is obtained by isospectral deformation of the canonical triple associated to the Euclidean cylinder. We discuss Connes' character formula for
Brodzki   +28 more
core   +1 more source

Quantized superfluid vortex dynamics on cylindrical surfaces and planar annuli [PDF]

open access: yes, 2017
Superfluid vortex dynamics on an infinite cylinder differs significantly from that on a plane. The requirement that a condensate wave function be single valued upon once encircling the cylinder means that such a single vortex cannot remain stationary ...
Fetter, Alexander L.   +2 more
core   +3 more sources

The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282

open access: yesAdvanced Engineering Materials, EarlyView.
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh   +3 more
wiley   +1 more source

Complexes of elliptic cylinders with a characteristic manifold of the generator element in the form of coordinate straight lines

open access: yesДифференциальная геометрия многообразий фигур, 2019
The complex (three-parameter family) of elliptic cylinders is investi­gated in the three-dimensional affine space, in which the characteristic multiplicity of the forming element consists of three coordinate axes. The focal variety of the forming element
M. Kretov
doaj   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh   +6 more
wiley   +1 more source

Laser induced Zero-Group Velocity resonances in Transversely Isotropic cylinder

open access: yes, 2015
The transient response of an elastic cylinder to a laser impact is studied. When the laser source is a line perpendicular to the cylinder axis, modes guided along the cylinder are generated.
Ahmad, Faiz   +4 more
core   +3 more sources

A similarity law for stressing rapidly heated thin-walled cylinders [PDF]

open access: yes, 1952
When a thin cylindrical shell of uniform thickness is very rapidly heated by hot high-pressure gas flowing inside the shell, the temperature of material decreases steeply from a high temperature at the inside surface to ambient temperatures at the ...
Cheng, C. M., Tsien, H. S.
core   +1 more source

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann   +4 more
wiley   +1 more source

Aerodynamic noise evaluation for Aeolian tone and acoustical insulating plate by similarity law

open access: yesMechanical Engineering Journal, 2020
The objective of this research is to assess aerodynamic noise sources and the wind velocity conversion of the similarity law in an increasing wind velocity.
Akitoshi MATSUI   +2 more
doaj   +1 more source

Investigation of working bodies of cotton cleaning machine

open access: yesСовременные инновации, системы и технологии, 2021
The article included information on how to improve the working bodies of the machine for cleaning raw cotton, including large waste mixtures waste disposal sites.
Анвар Джураев   +3 more
doaj   +1 more source

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