Abstract In air conditioning system for aircraft, cycle machine (ACM) is the flimsy core component, which impacted observably by performance and reliability of elastic foil air-dynamic pressure bearing. It's necessary to have research on static characteristics Based finite element analysis (FEA) theory, it’s clearly obtained that discretized fluid lubrication Reynolds equation dynamic bearing w...

This paper investigates the static and dynamic characteristics of precision hydrostatic spindle with a mid-thrust bearing under different working conditions. Firstly, establishes fluid governing equations coupled journal thrust bearings based on orifice restrictors; Reynolds are solved using perturbation finite difference methods to obtain steady transient pressure distribution functions. Then ...

statement of problem: tongue thrust and/or its consequent swallowing pattern are amongst the parafunctional habits that have always been considered as etiological factors for dental disorders by different investigators. purpose: the aim of this study was to investigate the prevalence of tongue thrusting and the incidence of periodontal disorders associated with this habit among patients referre...

Key Points • Palpation of functional cranial tibial thrust instability during weight-bearing is used to assess knee stability preand post-operatively. • Variation in radiographic landmarks to determine stifle flexion angle (SFA) leads to variable TTA cage size recommendations. Use of the Long Axes Method leads to larger advancement recommendations than Kinematic or Eminence Methods. • Variation...

In the hydrodynamic inclined fixed pad thrust bearing, when surface separation is ultra low, there will be special mode where in inlet zone occur both adsorbed boundary layer flows and intermediate continuum fluid flow i.e. multiscale outlet only occurs physical flow. This new of bearing has not been addressed before. Here, we present corresponding analysis for this bearing. The described by cl...

(paper pages 133-156) zagros active fold-thrust belt lies on the northern margin of the arabian continental crust it is a young fold-thrust mountain belt currently shortening, thickening and uplifting as a result of the collision of the arabian and iranian plates. rethickening of crust during collisional orogenies could have been carried out by reversal of fault motion along the mesozoic normal...