The structural analysis of an old steel riveted railway truss bridge located over the Maruska River on Działdowo – Olsztyn, Poland line is performed in this paper to check its behaviour under today’s loads. mechanical properties construction extracted from are investigated by tensile tests, impact tests through Charpy pendulum V-notch, and optical emission spectrometer. Structural exhibits that...

In recent years, aluminum alloy has been increasingly used in building structures, becoming an important construction material for metal structures. Currently, is commonly buildings as beam–column components, profiled roof panels, and door window frames, among other forms. However, there limited research on the mechanical properties of panels with irregular curved surfaces. this study, a full-s...

The development of anterior cervical plates (ACPs) represents a rapidly changing aspect of spine surgery. This paper focuses on a historical overview of ACPs. The authors discuss the disadvantages of earlier generations of plates and demonstrate how current plates have been designed to overcome the presumed shortcomings of their predecessors. This historical review begins with the earliest plat...

The uniformity of Xenobind covalent binding microwell plates was compared with that of passive binding plates by binding streptavidin to the plate surface, reacting the streptavidin with biotinylated alkaline phosphatase, and developing color with phenolphthalein monophosphate. Absorbance of the covalent binding plates at 570 nm was 0.95 A (CV 1.9%) compared with 0.35-0.5 A (CV 6.7-16.9%), for ...

in this paper, nonlinear equations of motion for laminated composite rectangular plates based on the first order shear deformation theory were derived. using a perturbation method, the nonlinear equation of motion was solved and analytical relations were obtained for natural and nonlinear frequencies. after proving the validity of the obtained analytical relations, as an alternative and simple ...

Hardware prominence after plate fixation for clavicle fracture is a common complication. The aim of the study was to perform a 3D analysis of the prominence of different types of superior clavicle plates. An automated fitting of 3 straight and 10 precontoured plates was performed on 52 3D-CT-scan reconstructed cadaver clavicles. The mean and maximum bone-plate distance and maximum prominence wa...