INTRODUCTION The management of heel pad avulsion injuries has been challenging because of the precarious blood supply. The difficulties get compounded when it is associated with tendo-achilles rupture and calcaneal fracture. Here, it is a description of a case with the above features managed with a unique technique. CASE REPORT A 63-year-old woman presented to casualty with injury to right an...

Among all kinds of journal bearings, the tilting pad bearing has characteristics high stability. In order to further reduce vibration and improve stability rotor-bearing systems, a novel double layers flexible support (DL-FSTPB) is presented in this paper. The utilizes two springs, which have different functions. offset springs control swing angle ensure formation convergent oil film, symmetric...

Hydrodynamic journal bearings are essential components for industrial rotating machineries. Continuously growing specific power allows more compact and efficient machines to be obtained, by reducing the environmental footprint of production plants. The aim this work is provide a new design an innovative pad Tilting Pad Journal Bearings (TPJBs) with embedded cooling circuit, able limit oil film ...

Abstract Purpose Thrust bearings play a critical role in high-speed rotating machinery, such as turbines, pumps, compressors, and turbogenerators, by transferring axial loads between the collar bearing pads. The lubricating fluid prevents contact, friction, wear solid parts acts cooling medium. purpose of this study is to evaluate first- second-order coefficients an inclined pad hydrodynamic th...

Thin adhesive pads used to attach objects to each other often fail catastrophically. Here we consider the nature of failure of such a pad under loading parallel to the adhesive substrate. To determine the modes of failure of the pad and to understand what limits its load bearing capacity, we conduct experiments with finite pads composed of a soft adhesive layer with a stiff backing and load the...

We describe an optimized system for the easy, effective, and precise modification of the Escherichia coli genome. Genome changes are introduced first through the integration of a 1.3 kbp Landing Pad consisting of a gene conferring resistance to tetracycline (tetA) or the ability to metabolize the sugar galactose (galK). The Landing Pad is then excised as a result of double-strand breaks by the ...

The article presents the basic principles of three-dimensional mathematical modeling operation a thrust plain bearing with fixed pads compressor. model is based on periodic thermoelastichydrodynamic (PTEHD) theory which allows calculating temperature at inlet to pad and considering complete thermal pattern. A description main provisions numerical implementation given. In stationary mode bearing...

Objective: Peripheral Arterial Disease (PAD) is a state characterized by atherosclerotic occlusive disease of lower extremities. Diabetes is the main risk factor for PAD. Material and Methods: To assess the prevalence of PAD, a cross sectional study was performed on 352 diabetic patients who referred to Yazd diabetes research center from 2007 to 2010. Vascular assessment was done by measuring ...