Results 51 to 60 of about 4,293,483 (200)
Crystals, 2023 This research focuses on the computational modelling and comparative analysis of friction stir welding (FSW) and stationary shoulder friction stir welding (SSFSW) applied to AA6061-T6 aluminium alloy.
Roshan Vijay Marode +2 more
doaj +1 more source
Two-step rocket engine bipropellant valve concept [PDF]
, 1969 Initiating combustion of altitude control rocket engines in a precombustion chamber of ductile material reduces high pressure surges generated by hypergolic propellants.
Capps, J. E. +2 more
core +1 more source
Biogas on-farm: energy and material flow [PDF]
, 2003 Objectives: European countries are committed to reduce CO2 emission originating from fossil fuels. On-farm produced biogas may replace energy produced from fossil fuels and so contribute to achieve the target. Up to now only in Germany a greater number
Schäfer, Winfried
core
Evolution of material surfaces in the temporal transition in channel flow
, 2016 We report a Lagrangian study on the evolution of material surfaces in the K-type temporal transitional channel flow. Based on the Eulerian velocity field from the DNS, a backward-particle-tracking method is applied to solve the transport equation of the ...
Chen, Shiyi, Yang, Yue, Zhao, Yaomin
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Coupled analysis of material flow and die deflection in direct aluminum extrusion [PDF]
, 2010 The design of extrusion dies depends on the experience of the designer. After the die has\ud been manufactured, it is tested during an extrusion trial and machined several times until it works\ud properly.
Assaad, W., Geijselaers, H.J.M.
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EnergiesMultiple minor text corrections were made to the original publication [...]
Niklas Scholliers +4 more
doaj +1 more source
A new look at spherical accretion in High Mass X-ray Binaries
, 2012 Currently used model of spherical accretion onto a magnetized rotating neutron star encounters major difficulties in explaining the entry rate of accreting material into the stellar field and spin evolution of long-period X-ray pulsars.
Beskrovnaya, N. G. +2 more
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EnergiesDistrict heating networks (DHNs) are a key technology in the transition toward sustainable heat supply, increasingly integrating renewable sources and thermal energy storage.
Niklas Scholliers +4 more
doaj +1 more source
Shear Flows of Rapidly Flowing Granular Materials [PDF]
Journal of Applied Mechanics, 1987 Shear flows of granular materials are studied in an open channel. The wall shear is calculated from an open channel momentum equation which includes the density variations in the flow. An experimental technique was developed that allowed the measurement of the average density of the flow at different longitudinal locations in the channel.
J. S. Patton +2 more
openaire +1 more source
Fatigue of friction stir welded 2024-T351 aluminium alloy
, 2002 Fatigue failure characteristics of friction stir welds in 13mm gauge 2024-T351 plate have been assessed. Failure occurred from either the weld region (nugget/flow arm) or from the material immediately surrounding the weld.
Booth, D., Sinclair, I.
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