Purpose: The goal of this work is to reduce the effect dynamic loads on mine timbering through use elastic devices contained in monorail suspension and justify their parameters. Methods materials: article considers developed mathematical model vertical oscillations track, which allows setting interconnection between rolling stock parameters suspension. At under harmonic disturbing force caused ...

Complex and time-critical process chains in industrial production of premium automobiles demand a sophisticated supply chain management and logistics as well as safe and reliable transport systems. Inside a vast factory individual parts (e.g. engines) cover large distances by using electric monorail suspension conveyers. In such an environment, the avoidance of any collision of units with the s...

Membrane-covered Express Monorail stents composed of chitosan (CH) blended with polyethylene oxide (PEO) in 70:30% wt (CH-PEO) were coated with a monolayer of hyaluronic acid (HA). This significantly improved the resistance to platelet adhesion and demonstrated excellent mechanical properties, resisting the harsh conditions during stent crimping and subsequent inflation. CH-PEO/HA membrane was ...

A number of symptomatic patients with coronary artery disease undergo revascularization without definite evidence that particular coronary stenosis is responsible for their symptoms [1]. Currently, the borderline coronary artery stenoses are most commonly assessed by intravascular ultrasound and fractional flow reserve (FFR) alongside with quantitative coronary angiography [2]. FFR measurement,...

BACKGROUND Drug-eluting stents (DES) compared to bare metal stents (BMS) have shown superior clinical performance, but are considered less suitable in complex cases. Most studies do not distinguish between DES and BMS with respect to their mechanical performance. The objective was to obtain mechanical parameters for direct comparison of BMS and DES. METHODS In vitro bench tests evaluated crim...

Introduction: Management of pathological diaphyseal fractures secondary to osteomyelitis in children still remains a nightmare for the treating orthopedic surgeon owing to the highly unpredictable clinical course and lack of certainty in achieving successful results. This study highlights the potential role of rail fixator in the management of pathological femur fracture secondary to osteomyeli...

Increasing the maximum speed limit of suspended monorails, which became a very popular means auxiliary transport, is one aspects improving efficiency work in underground coal mines. It especially important to enable higher (than allowed by law) travel speed, when moving crew and from workplace, often distant shaft, can take more than hour travel. this will make it possible extend effective work...