Peculiarities of traction forces in wheel/rail contact area

Tractive force and MENS ACCESSORIES train movement stability dependence on division of forces involved in wheel/rail contact area are the main subjects of this article.The influence of wheel/rail contact properties in the vehicle dynamics and adhesion fields is investigated.Current tendency all over the world is to reduce the conicity of wheels wit

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Osteogenic differentiation of 3D-printed porous tantalum with nano-topographic modification for repairing craniofacial bone defects

Introduction: Congenital or acquired bone defects in the oral and cranio-maxillofacial (OCMF) regions can seriously affect the normal function and facial appearance of patients, and cause great harm to their physical and mental health.To achieve good bone defect repair results, the prosthesis requires good osteogenic ability, appropriate porosity,

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The zebrafish progranulin gene family and antisense transcripts

Abstract Background Progranulin is an epithelial tissue growth factor (also known as proepithelin, acrogranin and PC-cell-derived growth factor) that has been implicated in development, wound healing and in the progression of many cancers.The single mammalian progranulin gene encodes a glycoprotein precursor consisting of seven and one half tandeml

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