Concept

Van der Waals force

Related publications (274)

Liquid fragmentation and intermittent flow regimes in unsaturated fractured media

Flow processes in unsaturated fractures considerably differ from flow in rock matrix because of the dominance of gravitational forces, accentuated by variations in fracture geometry. This gives rise to liquid fragmentation, fingering, and intermittent flow ...

2005

Star polymers: A study of the structural arrest in the presence of attractive interactions

Giuseppe Foffi

The structural arrest and the dynamics in star polymer solutions in the presence of attractive forces between microparticles were studied. The effect of the interplay between attractive interactions of different range and ultrasoft core repulsion, on the d ...

2004

Interactions in systems with short-range attractions and applications to protein crystallisation

Giuseppe Foffi

The problem of phase behaviour of solutions of globular proteins is approached by means of a Hard Core Yukawa fluid model with short-ranged attractions. We have determined the phase behaviour of this model system for different well widths, using a variety ...

2004

Interaction between charged surfaces on the Poisson-Boltzmann level: The constant regulation approximation

Ramon Pericet Camara, Michal Borkovec

Interaction forces between ionizable surfaces across an electrolyte solution on the Poisson-Boltzmann level are discussed within the constant regulation approximation. The chemical response of each surface is expressed in terms of two parameters, namely, t ...

2004

Multi-finger haptic rendering of deformable objects

Daniel Thalmann, Ronan Boulic, Sofiane Sarni, Anderson Maciel, Olivier Buchwalder

The present paper describes the integration of a multi-finger haptic device with deformable objects in an interactive environment. Repulsive forces are synthesized and rendered independently for each finger of a user wearing a Cybergrasp force-feedback glo ...

Eurographics Association2004

Numerical modelling of light emission and propagation in (organic) LEDs with the Green's tensor

Olivier Martin

The accepted model for light emission and propagation in organic LEDs (OLED) which consists of several optically thin functional layers deposited on a thick substrate is a classical dipole located in the emitting layer. The propagation of the emitted light ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2004

Numerical Flow Analysis in a Pelton Turbine Bucket

François Avellan, Mohamed Farhat, Alexandre Perrig

The flow in the Pelton turbine bucket is three-dimensional, unsteady, turbulent, features a free surface, and is influenced by the rotation-induced forces. It is therefore difficult to investigate how the energy transfer takes place between the water flow ...

International Association For Hydraulic Research2004

Reinforcement of single-walled carbon nanotube bundles by intertube bridging

Jürgen Brugger, László Forró, Andras Kis, Andrzej Kulik, Willy Benoit

During their production, single-walled carbon nanotubes form bundles. Owing to the weak van der Waals interaction that holds them together in the bundle, the tubes can easily slide on each other, resulting in a shear modulus comparable to that of graphite. ...

2004

Nitrogen adsorption on a supported iron nanocluster

Alfredo Pasquarello, Zeljko Sljivancanin

Sequential adsorption of N atoms on a MgO(100) supported Fe-7 cluster is studied using a density functional approach. For the number of adsorbates varying between one and six, the most favorable adsorption geometries are determined and the corresponding po ...

2004

Nuclear Magnetic Resonance Chemical Shifts from Hybrid DFT QM/MM Calculations

Ursula Röthlisberger

The authors present a method to calc. NMR chem. shielding tensors in condensed phases by a hybrid quantum mech./mol. mech. (QM/MM) approach. The authors propose a modification of the conventional QM/MM technique, adding a general repulsive potential to the ...

2004

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