Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Cheng, Shengfeng"'
Autor:
Wang, Junwen, Cheng, Shengfeng
A compact analytical form is derived via an integration approach for the interaction between a sphere and a thin rod of both finite and infinite lengths, with each object treated as a continuous medium of materials points interacting by the Lennard-J
Externí odkaz:
http://arxiv.org/abs/2405.03944
An analytical form has been derived using Ostrogradski's integration method for the interaction between two thin rods of finite lengths in arbitrary relative configurations in a 3-dimensional space, each treated as a line of material points interacti
Externí odkaz:
http://arxiv.org/abs/2405.03941
Molecular dynamics simulations are used to demonstrate that a binary solvent can be used to stratify colloidal mixtures when the suspension is rapidly dried. The solvent consists of two components, one more volatile than the other. When evaporated at
Externí odkaz:
http://arxiv.org/abs/2310.20464
Publikováno v:
Polymers 14(19), 3996 (2022)
A method of simulating the drying process of a soft matter solution with an implicit solvent model by moving the liquid-vapor interface is applied to various solution films and droplets. For a solution of a polymer and nanoparticles, we observe "poly
Externí odkaz:
http://arxiv.org/abs/2209.11829
Autor:
Huang, Yisheng, Cheng, Shengfeng
Publikováno v:
Journal of Polymer Science 59 (22), 2819-2831 (2021)
Molecular dynamics simulations are used to investigate the conformations of a single polymer chain, represented by the Kremer-Grest bead-spring model, in a solution with a Lennard-Jones liquid as the solvent when the interaction strength between the
Externí odkaz:
http://arxiv.org/abs/2111.08055
Publikováno v:
Macromolecules 54, 6477-6488 (2021)
We investigate the behavior of hydrated sulfonated polysulfones over a range of ion contents through differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), and molecular dynamics (MD) simulations. Experimental eviden
Externí odkaz:
http://arxiv.org/abs/2107.06077
Autor:
Cheng, Shengfeng, Chandross, Michael
Publikováno v:
Tribology Letters 69, 69 (2021)
We present the results of large scale molecular dynamics simulations aimed at understanding the origins of high friction coefficients in pure metals, and their concomitant reduction in alloys and composites. We utilize a series of targeted simulation
Externí odkaz:
http://arxiv.org/abs/2105.03054
Publikováno v:
Macromolecules 54, 302-315 (2021)
We use molecular dynamics simulations to probe hydration, ion spacing, and cation-anion interaction in two sulfonated polysulfones with different ion distributions along the polymer backbone. At room temperature, these polymers remain in a glassy sta
Externí odkaz:
http://arxiv.org/abs/2101.05382
Publikováno v:
Macromolecules 54, 143-160 (2021)
A coarse-grained model is developed to allow large-scale molecular dynamics (MD) simulations of a branched polyetherimide derived from two backbone monomers [4,4'-bisphenol A dianhydride (BPADA) and m-phenylenediamine (MPD)], a chain terminator [phth
Externí odkaz:
http://arxiv.org/abs/2006.08715
Publikováno v:
Journal of Polymer Science 58 (11), 1521-1534 (2020)
Glass transition temperature ($T_{\text{g}}$) plays an important role in controlling the mechanical and thermal properties of a polymer. Polyimides are an important category of polymers with wide applications because of their superior heat resistance
Externí odkaz:
http://arxiv.org/abs/2001.08889