Unbalance and misalignment are the commonly occurring faults in rotating mechanical systems. These faults are caused mainly due to improper installation or premature failure of the machine components. Detection and diagnosis of faults in rotating machinery is crucial for its optimal performance. In this study artificial neural networks (ANN) and support vector machine (SVM) techniques have been...

PURPOSE To compare the outcome in patients who underwent surgery for unstable intertrochanteric femoral fractures using the proximal femoral locking plate versus the dynamic hip screw (DHS). METHODS 15 men and 5 women aged 32 to 78 (mean, 55) years were randomised to the proximal femoral locking plate group, whereas 14 men and 6 women aged 38 to 75 (mean, 59) years were randomised to the conv...

The process of matching clubs with appropriate shafts to individual players is largely one of trial and error. Bending stiffness or shaft flex, mass, damping, torsional stiffness, and bend point are widely accepted as being the five main shaft properties that affect performance in golf. Considerable debate surrounds the individual and combined dynamic influence of these factors during the golf ...

Background. Dislocation of the femoral head to the front and to the side during the course of Perthes' disease is the main threat to the development of the hip. Containment of the femoral head into the acetabulum is the main goal of conservative and operative treatment. The spherical shape of the acetabulum is used as the modelling factor for the femoral head during the regeneration period, whi...

The multi-piston axial reciprocating compressor using the Sanderson-Rocker Arm Motion (S-RAM) mechanism is expected to have high volumetric efficiencies due to the application of a new type of seal to prevent the in-cylinder refrigeration gas leaking through the clearance between piston and cylinder wall. The stroke of the compressor can be controlled by adjusting the inclination angle between ...

In this paper, a novel line gear mechanism is proposed; it called the variable shaft angle (VSALGM). VSALGM has two rotational degrees of freedom, one rotation gears with constant transmission ratio, and other relative swing shafts. First, contact model composed driven curve driving teeth working surface (DLTWS) was proposed. With concept, basic design equations for were derived on basis space ...