Polyetheretherketone (PEEK) materials belong to a group of high-performance thermoplastic polymers thermoplastic that has been proposed as a substitute for metals in biomaterials.In this research, in order to improve the performances of PEEK, nano titanium dioxide (n-TiO2) and nano-hydroxyapatite (n-HAp) were incorporated into PEEK loading up to (1
Despite recent progress, the causes and pathophysiology of post-traumatic stress disorder (PTSD) remain poorly understood, partly because of ethical limitations inherent to human studies.One approach to circumvent this obstacle is to study PTSD in a valid animal model of the human syndrome.In one such model, extreme and long-lasting behavioral mani
The nonlinear dynamic responses of a wire rope under periodic excitation in a roman atwood gfuel friction hoisting system are investigated.Longitudinal excitation experiments of different periodic excitation frequencies are performed.The nonlinear dynamic characteristics of the rope, including transverse, longitudinal, and coupled vibrations, are d
A 68-year-old patient presented with persistent hemoptysis and dodge challenger carbon fiber fenders weight loss.A CT scan showing diffuse bilateral ground-glass opacities and nodules was followed by bronchoscopy.While diffuse alveolar hemorrhage (DAH) could be seen, specimens obtained during bronchoscopy did not provide conclusive histological fin
The Japanese giant salamander, Andrias dodge challenger carbon fiber fenders japonicus, is an iconic but declining species of aquatic amphibian.A population within the Nawa River Basin of Tottori Prefecture persists but faces two significant threats.The first major threat is waterway obstructions, in the form of dams, weirs, and concrete embankment