نتایج جستجو برای: bearing pad
تعداد نتایج: 89021 فیلتر نتایج به سال:
Two ruthenium-based pre-catalysts containing an ionic tag covalently connected to a N-heterocyclic carbene (NHC) ligand are reported. These novel complexes, bearing a polar benzimidazolium group, are air-stable and can be easily prepared from commercially available reagents. The quaternary benzimidazolium tag allows the efficient separation of ruthenium waste from the metathesis product after r...
Aerodynamic bearings with elastically supported tilting pads have operational properties comparable with widely-used foil journal bearings. They combine the excellent stability of tilting pad bearings, as a result of very small cross-coupling stiffness terms, with the positive properties of foil bearings, namely their ability to adapt to changing operating conditions and presence of additional ...
Background: Standard prevention and treatment strategies to decrease peak plantar pressure include a total contact insert with a metatarsal pad, but no clear guidelines exist to determine optimal length of the pad with respect to the metatarsal head. The purpose of this study was to Check the appropriate length of metatarsal pad On the reduction of Diabetic foot ulcer mechanical parameters whil...
ABSTRACT Background: Due to increasing The number of renal transplant recipients in Iran and many of them are female in child bearing age (12-45 years) that didn't have any pregnancy, evaluation of fertility and pregnancy characteristics of these female is more important. Melhod: A case control study The numbers of cases were 50 and control were 100. The research was done by direct observatio...
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