WebbAtomistic simulations of the linear, entangled polyethylene C1000H2002 melt undergoing steady-state and startup conditions of uniaxial elongational flow (UEF) over a wide range of flow strength were performed using a united-atom model for the atomic interactions between the methylene groups constituting the polymer macromolecules. Rheological, … Webb15 apr. 2011 · Since their discovery in the mid-1990s, ultrafast laser filaments in gases have been described as products of a dynamic balance between Kerr self-focusing and …
(PDF) Theory of a filament initiated nitrogen laser (2015) Daniil ...
WebbWe have studied several types of flat-plate-transmission-line pulse-excited nitrogen lasers. Experiments were carried over a wide variety of parameters such as laser-tube pressure, … Webb11 apr. 2024 · The production of fabricated filaments for fused deposited modelling printing is critical, especially when higher loading filler (>20 wt.%) is involved. At higher loadings, printed samples tend to experience delamination, poor adhesion or even warping, causing their mechanical performance to deteriorate considerably. Hence, this study … how to share zoom meeting on facebook live
Nanoscopic jets and filaments of superfluid 4He at zero …
Webb18 juni 2024 · In Nitrogen laser, the width of the laser pulse is narrow. It is because when a laser transition takes place, the population of upper laser level E3 decreases, and the … WebbWe will begin with a discussion on several of the key manufacturing methods under investigation, emphasizing how deposition physics leads to key constraints on ink design, print resolutions, deposition heights, device yield, and print speed and novel approaches to push the field beyond its traditional limitations. Webb13 apr. 2024 · The instability of a cryogenic 4 He jet exiting through a small nozzle into vacuum leads to the formation of 4 He drops, which are considered ideal matrices for spectroscopic studies of embedded atoms and molecules. Here, we present a He-density functional theory (DFT) description of droplet formation resulting from jet breaking and … how to share zoom meeting link