Results 231 to 240 of about 12,231 (262)

Body frame close coupling wave packet approach to gas phase atom–rigid rotor inelastic collisions

The Journal of Chemical Physics, 1989
The close coupling wave packet (CCWP) method is formulated in a body-fixed representation for atom–rigid rotor inelastic scattering. For total J>jmax the computational cost of propagating the coupled channel wave packets in the body frame scales approximately as N3/2 where N is the total number of channels.
Y. Sun, R. S. Judson, D. J. Kouri
openaire   +1 more source

Effect of closed-couple gas atomization pressure on the performances of Al-20Sn-1Cu powders

Rare Metals, 2008
Al-20Sn-1Cu powders were prepared by gas atomization in an argon atmosphere with atomizing pressures of 1.1 and 1.6 MPa. The charac-teristics of the powders are determined by means of dry sieving, scanning electron microscopy (SEM), optical microscopy (OM), and X-ray diffractometry (XRD).
X ZHAO, J XU, X ZHU, S ZHANG
openaire   +1 more source

Energy Balance Investigation of Close-Coupled Optimized-Pressure Gas Atomization Pour-Tube Design Geometry to Prevent Melt Freeze-Off

2021
Metal additive manufacturing (AM) is an evolving technology, and the supply of quality feedstock material needs to follow suit. Closed-coupled optimized-pressure gas atomization (CCOPGA) promises narrow size distribution, spherical powder, and optimized use of gas.
F. Hernandez, E. Deaton, T. Prost, I. E. Anderson   +3 more
openaire   +1 more source

Numerical Simulation and Validation of Gas and Molten Metal Flows in Close-Coupled Gas Atomization

2019
Molten metal atomization in close-coupled gas atomization dies can operate between two limiting conditions, jetting and filming, together with several complex mechanisms: liquid-gas drafting, downward/upward shearing, melt bouncing, etc. Liquid jet deformation depends on flow and geometric parameters, such as liquid Reynolds, liquid Weber, and gas Mach
F. Hernandez, T. Riedemann, J. Tiarks, B. Kong, J. D. Regele, T. Ward, I. E. Anderson   +6 more
openaire   +1 more source

Positron impact ionisation of rare gas atoms by a distorted wave method with close coupled target states

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1998
Abstract Total cross sections for positron impact ionisation of rare gas atoms at incident energies from the ionisation threshold up to about 1 keV have been calculated by a distorted wave method with close-coupled target states. Contributions from n s and n p electron ejection from the outer shell are both included.
openaire   +1 more source

Study of the gas jet in a close-coupled gas-metal atomizer

36th AIAA Aerospace Sciences Meeting and Exhibit, 1998
P. Espina, U. Piomelli
openaire   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Effects of Gas Mach Number on the Flow Field of Close-Coupled Gas Atomization, Particle Size and Cooling Rate of As-Atomized Powder: Simulation and Experiment

SSRN Electronic Journal, 2022
Tongchun Zhao, Cunguang Chen, Xinhua Liu, Junjie Hao   +3 more
openaire   +1 more source

CFD-BASED NUMERICAL SIMULATION OF GAS FLOW FIELD CHARACTERISTICS IN CLOSE-COUPLED VORTICAL LOOP SLIT GAS ATOMIZATION

Atomization and Sprays, 2021
openaire   +1 more source

Obesity and adverse breast cancer risk and outcome: Mechanistic insights and strategies for intervention

Ca-A Cancer Journal for Clinicians, 2017
Cynthia Morata-Tarifa, Joyce M Slingerland   +1 more
exaly