Intracanal metallic obstructions that block any further treatment often prevent the clinician from achieving total cleanliness of the root canal system. For the retrieval of these obstructions, most of the methods described suggest creating and enlarging a space around the obstruction to loosen it before its retrieval. This article describes a technique that consists of mechanical abrasion of t...

We propose a realistic generalization of the Maki-Thompson rumour model by assuming that each spreader ceases to propagate the rumour right after being involved in a random number of stifling experiences. We consider the process with a general initial configuration and establish the asymptotic behaviour (and its fluctuation) of the ultimate proportion of ignorants as the population size grows t...

it is difficult to reconstruct an alar defect with cartilage involvement. here in the authors report a case of traumatic alar loss during childhood in which an alar reconstruction was carried out with a composite auricular graft put over the pedicle buccal flap which was rotated and passed through the intraoral side. the lining skin and auricular cartilage for the flap was obtained from the aur...

Large marine foundation piles are an important part of offshore structural pile foundations, and their lifting operations have always been a major problem in the construction structures. Based on IHC’s bilateral spreader, this paper proposes scheme “internal external clamping type variable diameter spreader”. It solves poor adaptability spreaders to same specification different pipe diameters. ...

The reduction in heating capacity due to on/off cycling of a heat pump can lead to a performance reduction of 530%. In order to get a better understanding of the important parameters to improve the performance of heat pumps, a physics based model is being developed and validated with according measurements. Aim of the model is to achieve a stable and accurate solver with only few empirical tuni...