Results 1 to 10 of about 57,558 (260)

Optical van-der-Waals forces in molecules: from electronic Bethe-Salpeter calculations to the many-body dispersion model [PDF]

open access: yesNature Communications, 2022
The authors devise an efficient quantum approach to address the van der Waals interactions due to photoexcitations by approximating the Bethe-Salpeter equation. Both attractive/repulsive forces can arise, that could couple to collective protein dynamics.
Alberto Ambrosetti   +4 more
doaj   +2 more sources

Surface van der Waals forces in a nutshell [PDF]

open access: yesJournal of Chemical Physics, 2019
Most often in chemical physics, long range van der Waals surface interactions are approximated by the exact asymptotic result at vanishing distance, the well known additive approximation of London dispersion forces due to Hamaker. However, the description of retardation effects that is known since the time of Casimir is completely neglected for the ...
Luis G Macdowell, Macdowell Luis G
exaly   +5 more sources

Renormalization and Universality of Van der Waals forces* [PDF]

open access: yesEPJ Web of Conferences, 2010
Renormalization ideas can profitably be exploited in conjunction with the superposition principle of boundary conditions in the description of model independent and universal scaling features of the singular and long range Van der Waals force between ...
Calle Cordón A., Ruiz Arriola E.
doaj   +3 more sources

Brushed creation of liquid marbles [PDF]

open access: yesPeerJ Materials Science, 2022
A method where particulates are transferred via a cosmetic brush onto liquid drops created on a highly non-wetting substrate with a hole to generate talc and graphite liquid marbles (LMs) and talc-graphite Janus liquid marbles is described. van der Waals
Eric Shen Lin   +5 more
doaj   +2 more sources

Dynamical criticality of spin-shear coupling in van der Waals antiferromagnets

open access: yesNature Communications, 2022
Van der Waals materials are characterized by two dimensional layers weakly held together by interlayer van der Waals forces. Here, the authors study how shear motions between these layers influence the magnetic properties of the van der Waals ...
Faran Zhou   +17 more
doaj   +1 more source

Aggregation process of kaolinite clay [PDF]

open access: yesE3S Web of Conferences, 2019
Clay geomaterials pose a great challenge in geotechnical design due to their complex mechanical behaviour. Despite the vast research on clay mechanical behaviour, mechanisms occurring at the particle-scale still remain largely unknown.
Morais Letícia   +2 more
doaj   +1 more source

Finite-Size Effects of Casimir–van der Waals Forces in the Self-Assembly of Nanoparticles

open access: yesPhysics, 2023
Casimir–van der Waals forces are important in the self-assembly processes of nanoparticles. In this paper, using a hybrid approach based on Lifshitz theory of Casimir–van der Waals interactions and corrections due to the shape of the nanoparticles, it is
Raul Esquivel-Sirvent
doaj   +1 more source

Silver, copper and aluminium coatings for micro-material handling operations

open access: yesSouth African Journal of Industrial Engineering, 2013
Micro-material handling has challenges accompanying it because of adhesive forces, which make the picking and placing of micro-parts difficult. The adhesive forces hinder the picking of a micro-part, and once picked, they pose even a greater challenge ...
Matope, S.   +2 more
doaj   +1 more source

Geometric nonlinear analysis of large rotation behavior of a curved SWCNT

open access: yesInternational Journal of Smart and Nano Materials, 2022
Nanotubes form clusters and are found in curved bundles in nanotube films and nanocomposites. Separation phenomenon is suspected to occur in these curved bundles.
Prasad Dharap   +2 more
doaj   +1 more source

Review of Adhesion Fundamentals for Micron-Scale Particles

open access: yesKONA Powder and Particle Journal, 2014
The effects of various fundamental forces on the adhesion of fine dust particles are reviewed. The particle-size and distance variation of surface-energy related (e.g., van der Waals) forces are compared to similar ...
Otis R. Walton
doaj   +1 more source

Home - About - Disclaimer - Privacy