Results 21 to 30 of about 1,341,464 (302)

Learning to Form Accurate Mental Models

Eos, 2018
A cycle of prediction, comparison, and feedback supports spatial learning in geoscience.
Alexandra Davatzes, Kristin Gagnier, Ilyse Resnick, Thomas Shipley   +3 more
openaire   +1 more source

Faster - Better Molds Through RSP Tooling New Research and Advancements [PDF]

, 2004
The recent developments in rapid production tooling have all but made the need for prototype tooling disappear. There are several approaches that are now as fast and inexpensive as prototype tooling, and after part approval can continue to run in high ...
Knirsch, James R.
core   +1 more source

Absolute positions of 6.7-GHz methanol masers [PDF]

, 2009
The ATCA, MERLIN and VLA interferometers were used to measure the absolute positions of 35 6.7 GHz methanol masers to subarcsecond or higher accuracy. Our measurements represent essential preparatory data for Very Long Baseline Interferometry, which can ...
A. Brunthaler, A. M. Sobolev, Anglada, Avinash, B. Ritter, Beuther, Blaszkiewicz, Bourke, Bronfman, Carey, Caswell, Caswell, Caswell, Caswell, Caswell, Churchwell, Dehnen, Diamond, Ellingsen, Ellingsen, Ellingsen, Ellingsen, Evans, Felli, Fontani, Garay, Gaylard, Hill, Hunter, J. D. Pandian, J. J. Li, Juvela, K. M. Menten, Kalenskii, Kim, Kolpak, M. A. Voronkov, MacLeod, MacLeod, MacLeod, Malyshev, Mauersberger, Menten, Menten, Minier, Minier, Minier, Minier, Molinari, Norris, Ostrovskii, Pandian, Pestalozzi, Phillips, Pillai, Pirogov, Reid, Rieke, Russeil, Schneider, Schutte, Sobolev, Solomon, Szymczak, Szymczak, Szymczak, Teyssier, van der Walt, van der Walt, van der Walt, van der Walt, Vilas-Boas, Walsh, Winnberg, Wouterloot, Wouterloot, Wu, Xu, Xu, Xu, Xu, Y. Xu, Zhang, Zinchenko   +83 more
core   +2 more sources

Accurate quantification of glass-forming ability by measuring effective volume relaxation of supercooled melt

APL Materials, 2017
Herein, we elucidate how to accurately quantify glass-forming ability (GFA) by measuring effective volume relaxation of supercooled melt. We propose a new parameter, denoted as κ, for representing the relaxation, which is calculated by combining ...
C. W. Ryu, D. H. Kang, S. Jeon, G. W. Lee, E. S. Park   +4 more
doaj   +1 more source

Impulse Correlation for Partially Filled Detonation Tubes [PDF]

, 2004
The effect of nozzles on the impulse obtained from a detonation tube of circular cross section has been the focus of many experimental and numerical studies. In these cases, the simplified detonation tube is closed at one end (forming the thrust surface)
Cooper, M., Schauer, F., Shepherd, J. E.
core   +1 more source

The influence of process parameters and sheet material on the temperature development in the forming zone

Manufacturing Review, 2019
Cold metal forming is a fast and economical way of producing a wide range of precise components. Its profitability mainly depends on part quality, process stability, and service intervals of tools.
Tröber Philipp, Welm Markus, Weiss Hannes Alois, Demmel Peter, Golle Roland, Volk Wolfram   +5 more
doaj   +1 more source

Research on Al-alloy sheet forming formability during warm/hot sheet hydroforming based on elliptical warm bulging test

AIP Advances, 2018
An elliptical warm/hot sheet bulging test under different temperatures and pressure rates was carried out to predict Al-alloy sheet forming limit during warm/hot sheet hydroforming.
Gaoshen Cai, Chuanyu Wu, Zepu Gao, Lihui Lang, Sergei Alexandrov   +4 more
doaj   +1 more source

An improved M–K model coupled with different ductile criteria for fracture limit predictions of Inconel 718 alloy

Journal of Materials Research and Technology, 2021
Fracture Forming Limit Diagram (FFLD) is gaining special attention for high strength materials like Inconel 718 alloy where the substantial necking tendency rarely seen.
Gauri Mahalle, Nitin Kotkunde, Amit Kumar Gupta, Swadesh Kumar Singh   +3 more
doaj   +1 more source

The ALE-method with triangular elements: direct convection of integration point values [PDF]

, 2000
The arbitrary Lagrangian-Eulerian (ALE) finite element method is applied to the simulation of forming processes where material is highly deformed. Here, the split formulation is used: a Lagrangian step is done with an implicit finite element formulation,
Huetink, Han, Stoker, H.C., van den Boogaard, Antonius H., van Haaren, M.J., van Haaren, M.J.   +4 more
core   +2 more sources

An Analysis and Modelling of Spinning Process without Wall-Thickness Reduction [PDF]

Metalurgija, 2006
Through the spinning process it is made the different axial-symmetrical parts by acting spinning roller on blank of sheet metal, which is shaped through a chuck.
Jurković, M., Jurković, Z., Mahmić, M.   +2 more
doaj