We present ALMA observations of CO $J = 2-1$ and CS 5-4$ emission from the disk around TW~Hydrae. Both molecules trace a predominantly Keplerian velocity structure, although slowing rotation is detected at outer edge beyond ${\approx}~140$~au in emission. This was attributed to enhanced pressure support gas density taper near disk. Subtraction an azimuthally symmetric background structure revea...

We propose a formulation capable of measuring the complexity of kinematic chains at the conceptual stage in robot design. First, the complexity of the three basic lower kinematic pairs, the revolute, the prismatic and the cylindrical pairs, is proposed. Then, a formulation of the complexity of kinematic chains is introduced. Next, the complexity of the basic displacement subgroups generated by ...

In this short paper we generalize some previous results on attitude representations using higher order Cayley transforms. We show that the kinematic parameters generated by these higher order Cayley transforms have a a very simple limit, i.e., the well-known Euler vector. Introduction In a recent paper1 we introduced the concept of Higher Order Cayley Transforms (HOCT) as a means of generating ...

Abstract In this work the finite element (FE) implementation of small strain cyclic plasticity is discussed. The family elastoplastic constitutive models considered which uses mixed, kinematic-isotropic hardening rule. It assumed that kinematic governed by Armstrong–Frederick law. radial return mapping algorithm utilized to discretize general form equation. A relation for consistent tangent ope...

In 1911 W. Blaschke and J. Grnwald described the group ~ of proper motions of the euclidean plane d' in the following way: Let (P, fg)be the real three-dimensional projective space, let ~ C P be an isomorphic image of g, and let U ~ f# such that ~ tA U is the projective closure of in P. Then there is a bijection x : ~ ~ P ' := P \ U called the kinematic mapping and an injective mapping ~ × ~ ~ ...

dehbid mylonite nappes associated with the tutak gneiss dome as the zagros hinterland involved-basement window in the zagros orogenic belt has significant components of dextral sense of shear along the mylonite nappes and are related to the high proportion of simple shear relative to pure shear deformation. kinematic vorticity analysis (wk) was made in order to determination of relative amounts...