Abstract Antiferromagnetic (AFM) spintronic devices play a vital role in the development of novel due to their attractive features. Herein, interfacial state manipulation AFM IrMn material is investigated by combining ferroelectric single crystal Pb(Mg 1/3 Nb 2/3 ) 0.7 Ti 0.3 O 3 (PMN-PT) with an electric field (E-field)-controlled magnetic moment arrangement film. A PMN-PT/Cu/IrMn/NiFe heteros...

objective: to investigate the friction of rabbit’s knee joint with designed pendulum friction tester to diagnose and evaluate different pathological and therapeutic conditions following haemarthrosis, osteoarthritis, and other joint disorders. materials and methods: friction coefficient of 10 adult male albino rabbit’s joint (5 right and 5 left knees) weighted 1.59 ± 0.27 kg, after designing a...

In this paper, a class of rational spatial curves that have a rational binormal is introduced. Such curves (called PB curves) play an important role in the derivation of rational rotation-minimizing conformal frames. The PB curve construction proposed is based upon the dual curve representation and the Euler-Rodrigues frame obtained from quaternion polynomials. The construction significantly si...

In this study, an existing hospital structure has been evaluated with incremental dynamic analysis (IDA). This building is accommodated in Karaj with soil type II. At first, two 2-D frames along X, Y direction are selected. Then, five performance levels are determined according to “Rehabilitation Code for Existing Buildings (Publication No. 360) including Immediate Operational (IO), Limited Dam...

The muscle-tendon moment arm is an important input parameter for musculoskeletal models. Moment arms change as a function of joint angle and contraction state and depend on the method being employed. The overall purpose was to gain insights into the interactive effects of joint angle, contraction state and method on the Achilles tendon moment arm using the center of rotation (COR) and the tendo...

Tabachnikov’s conjecture is proved: for any closed curve Γ lying inside a convex closed curve Γ1 the mean absolute curvature T (Γ) exceeds T (Γ1) if Γ = kΓ1. §1. The problem setting and main ideas Let Γ(s), s ∈ [0, L(Γ)], be a naturally parametrized closed curve on a plane. We say that Γ(s) belongs to the class BV 1 if the velocity Γ′(s) exists and is continuous everywhere on [0, L(Γ)] except f...

In Euclidean 3-space, the Frenet and Darboux instantaneous rotation vectors for a curve (c) on the surface which the parameter curves are perpendicular to each other are known. Let us consider an arbitrary curve (c) and the parameter curves (Cl) , (cz) passing through a point P on surface. If the Darboux instantaneous rotation vectors of these curves are shown by W, WI and Wz respectively, then...

We extend the MOND analysis to a sample of 17 high surface brightness, early-type disc galaxies with rotation curves derived from a combination of 21cm Hi line observations and optical spectroscopic data. A number of these galaxies have asymptotic rotation velocities between 250 and 350 km/s making them among the most massive systems (in terms of baryonic mass) considered in the context of MOND...