In this paper, the effect of the crack on dynamic behavior of cracked micro-beam in the presence of DC and AC loads are investigated. By applying the residual axial stress and fringing field stress, a nonlinear analytical model of cracked micro-beam is presented and crack is modeled by a massless rotational spring. The governing equation of the system is solved using Galerkin procedure and shoo...

Since the 1980s the use of percutaneous endoscopic gastrostomy (PEG) has been a safe and reliable method of enteral feed− ing in patients with functioning normal bowel [1]. A 74−year−old woman with Alz− heimer s disease and a history of a cere− brovascular accident (CVA) was admitted after dislodgement of her PEG feeding tube. It had been placed 3 years previous− ly using a standard pull−throug...

The terms pull and lean production have become cornerstones of modern manufacturing practice. But, although they are widely used, they are less widely understood. In this paper, we argue that while the academic literature has steadily revealed the richness of the pull/lean concepts, the practitioner literature has progressively simplified these terms to the point where serious misunderstandings...