Unidirectional sliding experiments with polished and laser textured steel surfaces were carried out to investigate the effects of different textured area densities, aspect ratios and dimple arrangements. The system was lubricated with Polyalphaolefin (PAO) at 100 °C and the contact pressure was 3 MPa. For measuring Stribeck curves, the sliding speed was controlled between 40 and 2000 mm/s. The ...

BACKGROUND Previous studies suggest that radiofrequency (RF) energy may be effective as a treatment for cellulite. OBJECTIVE This bilateral paired blinded comparative study assesses the efficacy and safety of a unipolar RF device for improving the appearance of cellulite using a new quantitative cellulite grading system. METHODS In this randomized, blinded, split-design study, 10 individual...

Forming micro-dimples nearer to the cutting edge on rack face of tungsten carbide inserts will positively influence machinability. However, it is challenging machine perfect micro-dimple dimensions by utilizing available machining techniques. Finite element analysis can be an efficient way observe dimple-texture area density, size, and various shapes inserts' This paper numerically analyses imp...

We previously introduced DIMPLE, a software environment allowing the run-time creation of a physically dynamic, haptically-enabled virtual scene using the Open Sound Control (OSC) protocol [18]. Object properties could be requested over OSC to allow modulation of parameters for sound synthesis or visualization. Examples were given of PureData patches that controlled such scenes, making haptic v...

To achieve high precision, stability, and good surface quality when producing micro-dimple arrays on cylindrical surfaces, we propose a new processing method known as radial ultrasonic rolling electrochemical micromachining (RUREMM) in this study. This is based the (EMM) machining principle. The relevant simulation model was created, ANSYS researched flow field characteristics of electrolyte be...

We present a mathematical model for pre-fusion interaction between an influenza virus and a healthy cell. The model describes the role of the force exerted by Hemaglutinin (HA) protein clusters in bringing the viral membrane in close contact with the host cell membrane, as a first step of the fusion process between the two membranes. We model the viral membrane as a lipid bilayer whose shape en...

It is well-known that hydrodynamic pressures in a thin draining liquid film can cause inversion of the curvature of a drop or bubble surface as it approaches another surface, creating a so-called "dimple". Here it is shown that a more complicated rippled shape, dubbed a "wimple", can be formed if a fluid drop that is already close to a solid wall is abruptly pushed further toward it. The wimple...

The paper presents the results of experimental studies space-time characteristics velocity and pressure field inside a hemispherical dimple on flat surface. features formation development vortex structures generated dimple, as well their interaction with streamlined surface boundary layer were established. Integral, spectral correlation velocity, dynamic wall fluctuations obtained. velocities d...