نتایج جستجو برای: grooved tube

تعداد نتایج: 97630  

Journal: :International archives of occupational and environmental health 2012
Gunilla Wastensson Gerd Sallsten Rita Bast-Pettersen Lars Barregard

PURPOSE The aim of the present study was to investigate whether previous long-term exposure to manganese (Mn) via inhalation of welding fumes can cause persistent impairment in neuromotor function even long after cessation of exposure. METHODS Quantitative tests of tremor, motor speed, manual dexterity, diadochokinesis, eye-hand coordination and postural stability were administered to 17 reti...

Journal: :BJU international 2007
Sara Ramsey

OBJECTIVE To digitally model (three-dimensional, 3D) the course of the pudendal arteries relative to the bony pelvis in the adult male, and to identify sites of compression with different bicycle riding positions as a potential cause of penile hypoxia and erectile dysfunction. SUBJECTS AND METHODS 3D models were made from computed tomography scans of one adult male pelvis (a healthy volunteer...

Journal: :Journal of tribology 2022

Abstract This paper presents the results of a theoretical and experimental investigation potential enhanced groove geometries to increase bearing clearance Herringbone Grooved Journal Bearing (HGJB) supported rotor. The study investigates various different complexities their effect on stability threshold particular rotor geometry. obtained from rigid-body rotordynamic model suggest an more than...

Journal: :Journal of Mechanics 2022

Abstract Hydrodynamic herringbone-grooved journal bearings (HGJBs) are analyzed by solving Navier–Stokes and energy equations. It is well known that the load capacity of hydrodynamic may be affected high temperatures low oil viscosity. Therefore, main objective this study to understand pressure distribution HGJBs under different viscosity eccentricity ratios. In paper, 3 configurations studied,...

Journal: :Journal of Physics: Condensed Matter 2013

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1979

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