BACKGROUND: The main cause of conductive hearing loss in the presence a completely normal tympanic membrane is otosclerosis. There are different types prostheses that could be used operation with materials, designs, and shapes. utilized this study including both Teflon Robinson assessed. aim our work to match determine surgical steps, postoperative results, complications piston titanium prosthe...

This paper takes dynamics analysis on the piston and the dynamic lubrication theory on the skirt and the ring of piston as the basis. Using AVL Glide software, through the establishment of the analysis model of the piston secondary movements, this study focuses on the effects of the crankshaft bias on piston secondary movements’ characteristics. This paper takes 5 different offsets, by comparin...

This paper describes the behavior of a rolling piston in a rolling piston type rotary compressor under various operating conditions. Kinematic behavior of the rolling piston is discussed with attention to the friction forces acting on the rolling piston and the vane. Emphasis is on the following simulation approach. (1) The equation of motion of the rolling piston is solved in conjunction with ...

A system for the rapid prototyping of real-time control algorithms open-circuit variable displacement axial-piston pumps is presented. In order to establish control, and communication synchronization with programmable logic controller an axial piston pump, custom CAN protocol developed. This realized as a Simulink® S-function, which part main model. model works in allows implementation various ...

In this paper a mathematical simulation of a simplified internal combustion engine is presented. To contribute engine kinematics and its geometry, simple relations are derived for constrained motions. The equation of motion for the piston forms a singular boundary value problem. The uniqueness of the solution was studied in the Banach space. For solving governing equations an iterative numerica...

Based on the principle of hydrostatic bearing, in this study, several novel kinds of pistons were designed out, and the mathematic model of hydrostatic bearing on piston was established and analyzed. It was also found that, the diameter of damping hole and the width of pressure recess had impact on the radial load capacity of piston, the overall efficiency of axial piston motor, and the frictio...

To cite this version : Munos, Stephane and Ranc, Nicolas and Botton, Emmanuel and Berard, Aurelie and Rolland, Sophie and Duffe, Philippe and Carretero, Yolande and Le paslier, Marie-Christine and Delalande, Corinne and Bouzayen, Mondher and Brunel, Dominique and Causse, Mathilde. Increase in Tomato Locule Number Is Controlled by Two Single-Nucleotide Polymorphisms Located. (2011) Plant Physiol...

The S parameters, attenuation characteristics and group delay characteristics of the Teflon tube have been analyzed in the paper. Firstly, the S parameters of metal and polymer tube with the same structure are compared. Then the transmission properties of the simple terahertz Teflon tubes and terahertz Teflon tubes which are coated metal film by three different ways are simulated, and the advan...

Energy savings by reducing the thermal and mechanical losses in machines is of major concern due to continuous depletion of energy resources. Frictional losses of engine components cause energy losses leading to high fuel consumption. In piston assembly, piston skirt and liner interaction contribute as much as a frictional loss as the piston rings but more studies have been focused on piston ri...