Application of thermoplastic materials has increased dramatically in recent decades due to its recyclability, low density, resistance to chemical changes. The friction stir welding process is one of the new methods of solid state welding, which has recently undergone a significant improvement. In this research, using a new tool Made of plain carbon steel st37 in friction stir welding and low co...

Conventional drilling has been widely used for making holes in structural materials. However, drawbacks like high cutting forces, poor surface finish, temperatures, excessive tool wear, and undesirable burr formation while magnesium alloys have necessitated the development of alternative hole-making methods. Lately, helical milling process attracted interest facilitating assembly applications. ...

PURPOSE To determine the biomechanical response of an impacting airbag on eyes with different axial lengths with transsclerally fixated posterior chamber intraocular lens (PC IOL). MATERIALS AND METHODS Simulations in a model human eye were performed with a computer using a finite element analysis program created by Nihon, ESI Group. The airbag was set to be deployed at five different velocit...

The distribution of curvature and of bending speed along the cell's growing region are studied during steady state phototropic bending. At the start, elemental bending speed parallels the known axial distribution of growth rate. Hence regional phototropic sensitivity is initially determined by the local growth rate, and unilateral visible light acts proportionally at all levels of the growth zo...

Multifocal multiphoton microscopy (MMM) is an efficient and technically simple method for generating multiphoton fluorescence images. Featuring the high axial resolution of confocal and multiphoton scanning microscopes, MMM also achieves high speed in 3-D microscopy. In this paper, examples of fast-mode 3-D microscopy are given including imaging of fixed brain tissue as well as living PC12 cell...

Axial speed of sound (SOS) measurements have been successfully applied to noninvasively evaluate tendon load, while preliminary studies showed that this technique also has a potential clinical interest in the follow up of tendon injuries. The ultrasound propagation theory predicts that the SOS is determined by the effective stiffness, mass density and Poisson’s ratio of the propagating medium. ...