This paper proposes an analytical solution for a 5-DOF manipulator to follow a given trajectory while keeping the orientation of one axis in the end-effector frame. The forward kinematics and inverse kinematics for a 5-DOF manipulator are analyzed systemically. The singular problem is discussed after the forward kinematics is provided. For any given reachable position and orientation of the end...

We present a fast algorithm for solving the problem of the verification of a trajectory for a 6-DOF parallel manipulator with respect to its workspace: i.e., given two different postures for the end-effector, is the straight line joining these two postures in the parameters space fully inside the workspace ? This algorithm is based on the analysis of the algebraic inequalities describing the co...

Responses of striate neurons to line textures were investigated in anesthetized and paralyzed adult cats. Light bars centered over the excitatory receptive field (RF) were presented with different texture surrounds composed of many similar bars. In two test series, responses of 169 neurons to textures with orientation contrast (surrounding bars orthogonal to the center bar) or motion contrast (...

Little information exists about the causal relationships of sport and exercise participation with goal orientations, perceived athletic competence and intrinsic motivation in physical education. A longitudinal study was conducted involving 882 Greek students who completed questionnaires on three occasions: 3 - 5 weeks into the academic year, 3 - 6 weeks before the end of the academic year, and ...

This chapter presents a unified approach to coordination planning and control for robotic position and orientation trajectories in Cartesian space and its applications in robotic material handling and processing. The unified treatment of the end-effector positions and orientations is based on the robot pose ruled surface concept and used in trajectory interpolations. The focus of this chapter i...

Although myths of the beginning and the end are ostensibly placed on a temporal continuum, referring to the past and the future respectively, the significance of these myths is focused on the present (van der Leeuw; Pettazzoni: 29; Westermann, 1972). In other words, these myths are about the present values and conditions of the people who generated them rather than the obscure past or the unkno...

In classical "cut-and-paste" transposition, transposons are excised from donor sites and inserted at new locations. We have identified an alternative pathway in which transposition involves the 5' end of an intact Ac element and the 3' end of a nearby terminally deleted fAc (fractured Ac). The Ac and fAc elements are inserted at the maize p1 locus on chromosome 1s in the same orientation; the a...

the research methodology and research orientation of the studies published in the realm of teaching persian to the speakers of other languages (hereafter tpsol) have seldom been reported. that said, the purpose of the present study was to investigate the research methodology and research orientation of the papers published between 2012 and 2015 in tpsol journal. moreover, the study aimed to inv...

Market orientation is widely accepted as important for company performance. However, scholarly research on market orientation has emphasised the consequences of marketorientation rather than its antecedents. With the growth of the services industry, it has been suggested that internal marketing influences market orientation, as the product received is a human performance, with the employees pla...