The present study aimed at assessing a novel annular-ducted fan lift system for VTOL aircraft through computational fluid dynamics (CFD) simulations. The power and lift efficiency of the lift fan system in hover mode, the lift and drag in transition mode, the drag and flight speed of the aircraft in cruise mode and the pneumatic coupling of the tip turbine and jet exhaust were studied. The resu...

In vivo fluoroscopic studies of patients with total knee replacements (TKRs) have shown lift-off of the femoral condyles from the tibial insert. This study investigated the influence of femoral condylar lift-off on the ultra-high molecular weight polyethylene (UHMWPE) wear of fixed bearing (FB) and rotating platform mobile bearing (RP MB) total knee replacements, using a physiological knee join...

section, a composite (deep-plane) rhytidectomy, and a subperiosteal face-lift. The results showed that the separate subcutaneous and sub-SMAS dissection interrupts the rich continuous anastomotic network between all these vessels. Arterial continuity is best maintained with the composite lift and the subperiosteal face-lift. The most significant arterial contribution of the face-lift flap is fr...

section, a composite (deep-plane) rhytidectomy, and a subperiosteal face-lift. The results showed that the separate subcutaneous and sub-SMAS dissection interrupts the rich continuous anastomotic network between all these vessels. Arterial continuity is best maintained with the composite lift and the subperiosteal face-lift. The most significant arterial contribution of the face-lift flap is fr...

We consider the Kudla-Millson lift from elliptic modular forms of weight (p + q)/2 to closed q-forms on locally symmetric spaces corresponding to the orthogonal group O(p, q). We study the L-norm of the lift following the Rallis inner product formula. We compute the contribution at the Archimedian place. For locally symmetric spaces associated to even unimodular lattices, we obtain an explicit ...

iii Nomenclature h altitude, ft ˙ h vertical velocity, ft/sec K fnt scale factor for lift from jet-induced fountain p roll rate, deg/sec q pitch rate, deg/sec r yaw rate, deg/sec T CN cruise nozzle thrust, lb T LF lift-fan thrust, lb T LN lift-nozzle thrust, lb T R rise time, sec V airspeed, knots V ej equivalent jet velocity ratio V x ground speed, ft/sec V y lateral velocity, ft/sec β sidesli...

1 The brow lift is an essential element in the rejuvenation of the aging face. As people age, brow ptosis occurs to varying degrees, changing the shape and position of the brows.1 Various techniques have been described for periorbital rejuvenation and correction of ptotic brow, including the coronal brow lift, the endoscopic brow lift, the anterior hairline forehead plasty, in the subgaleal, su...

We prove that for a uniformly convex Lagrangian system L on a compact manifold M , almost all energy levels contain a periodic orbit. We also prove that below Mañé’s critical value of the lift of the Lagrangian to the universal cover, cu(L), almost all energy levels have conjugate points. We prove that if the energy level [E = k] is of contact type and M 6= T then the free time action functiona...

Prolonged lifting may be associated with an incrase injury risk due to fatigued muscles being less capable of reacting to any perturbations that occur during a lift. Repetitive muscle use leads to reduced functional capacity, known as fatigue. In lower force tasks, fatigue is an ongoing process which may result in increased perceived effort and a reduction in the maximal force generating capaci...

The prediction of aerodynamic characteristics and smart flap of airfoil under the ground effect are carried out by the integration of computational fluid dynamics. Considering different types of beams, a parametric bending profile of a smart flap is designed. Cantilever beam with uniformly varying load with roller support at the free end is considered in here. A pressure-based implicit procedur...