ATP is synthesized by ATP synthase (F(O)F(1)-ATPase). Its rotary electromotor (F(O)) translocates protons (in some organisms sodium cations) and generates torque to drive the rotary chemical generator (F(1)). Elastic power transmission between F(O) and F(1) is essential for smoothing the cooperation of these stepping motors, thereby increasing their kinetic efficiency. A particularly compliant ...

Nickel-Titanium rotary files are a technological development that enables dentists to prepare irregularly shaped root canals without altering them. Unfortunately, these files may fracture without any prior visible warning signs. The aim of this study was to perform a theoretical evaluation of the mechanical behaviour of Mtwo Nickel-Titanium rotary files for endodontics, in order to determine wh...

We propose a new type of input for mobile devices by sensing forces applied by users to device casings. Deformation of the devices is not necessary for such “force gestures” to be detectable. Our prototype implementation augments an ultra-mobile PC (UMPC) to detect twisting and bending forces. We describe examples of interactions using these forces, employing twisting to perform application swi...

Methods A Finite Element Method (FEM) model is used to simulate industrial forming processes such as bending and deepdrawing. The model consists of multiple polymer and metal layers. The simulations are performed using the FEM programMARC, which is coupled to an external program. The coupling is required for the meshing of the model and other features. Results Bending and deep-draw simulations ...

In this study, flapwise bending vibration analysis of a tapered Timoshenko beam mounted on the periphery of a rotating rigid hub is performed. The governing differential equations of motion for pure bending are derived using the Hamilton’s principle and solved using the Differential Transform Method, DTM. During the derivation of the equations, effects of rotary inertia, shear deformation and h...

Abstract Rotary straightened structural steel cross‐sections have a different residual stress pattern compared to those without rotary straightening, which affects behavior, especially in members subjected inelastic buckling. A stiffness reduction material model for rotary‐straightened hot rolled sections was previously developed and validated specific set of cross‐section sizes load conditions...