I would like to present our experiences with torsional and micro-coaxial technology on behalf of our French research group. My goal is to demonstrate to surgeons the transition from performing phacoemulsification with traditional longitudinal ultrasound to a micro-coaxial procedure using torsional technology. The impetus for the development of micro-incisional phacoemulsification was to provide...

Torsional harmonic cantilevers allow measurement of time-varying tip-sample forces in tapping-mode atomic force microscopy. Accuracy of these force measurements is important for quantitative nanomechanical measurements. Here we demonstrate a method to convert the torsional deflection signals into a calibrated force wave form with the use of nonlinear dynamical response of the tapping cantilever...

OF DISSERTATION THE DEVELOPMENT AND IMPLEMENTATION OF SYSTEMS TO STUDY THE PHYSICAL PROPERITES OF TANTALUM TRISULFIDE AND SMALL-MOLECULE ORGANIC SEMICONDUCTORS The charge-density-wave (CDW) material orthorhombic tantalum trisulfide (TaS3) is a quasi-one dimensional material that forms long ribbon shaped crystals, and exhibits unique physical behavior. We have measured the dependence of the hyst...

In-plane torsional shear testing is a well-established material technique in the metal forming community. The corresponding specimen designed to be machined from sheet with continuous annular zone intended deform simple shear. Consequently, there are no geometric discontinuities or “edge-effects” induce volumetric changes instabilities result that large true plastic strains up 1.0 can achieved....

Pantographs are a special class of metamaterials that do not obey theories first gradient continua. In the present work, pantographic metamaterial was 3D printed and subjected to in situ torsion. The experiment designed order investigate damage onset modalities large torsional deformations mesostructures. To account for presence true pivots, multiple point constraints were implemented DVC proce...