Initiative: The Tygerberg Children's Hospital and Rotary Telemedicine Project in South Africa links specialists from Tygerberg Hospital to doctors at regional community or "district" hospitals to improve healthcare in rural areas. The initiative has assembled its own telemedicine system using off-the-shelf computer equipment and software that is more affordable than commercial telemedicine syst...

This paper is a study of the microstructure and other selected properties solid-state, high-speed, rotary friction-welded tungsten mild steel (S355) joints. Due to high affinity for oxygen, welding process was carried out in chamber with an argon protective atmosphere. Joints suitable quality were obtained without any macroscopic defects discontinuities. Scanning electron microscopy (SEM) used ...

Abstract. These days, in the manufacture of units and mechanisms ships, aircraft other technological machines, industrial robots, long-sized products from D 16 (Standart GOST-R) aluminum alloy are used, for processing which a complex belt rotary grinding has been developed. The outcome measures process depend on cutting forces generated during process. According to forces, stability is diagnose...

Friction welding is a type of solid state where the process carried out in phase to combine various types ferrous and non-ferrous metals that cannot be welded by fusion method but for different results are less than optimal due cracks on surface differences mechanical properties cause result brittle, therefore an interlayer used. In this study, observations were made joint friction using dissim...

Abstract Additionally to the achievable tight geometrical tolerances, rotary swaging can influence intrinsic material properties by work hardening and residual stresses generation. Although should be usually avoided, they used on purpose improve performance of a produced part. To find prospective process settings, 2D FEM simulation was developed revealed development distributions in E355 steel ...

AIM The aim of this study was to evaluate the carious dentin removal efficacy of new rotary polyamide burs capable of selectively removing infected dentin without removing sound dentin. METHODS AND MATERIALS This study included 40 subjects with bilateral occlusal carious lesions on mandibular first permanent molars. The lesions were randomly assigned to receive one restoration after carious d...