1 Motivation, Problem Statement, Related Work Most pick-and-place applications involved four-degree-of-freedom robots; indeed, packaging, picking, packing and palletizing tasks required three translations and one rotation around a vertical axis and such motions, named Schoenflies motions [1] or Scara motions, have to be realized in the shortest possible cycle time: the need for 4dof, Scara-like...

This paper consider the   general  forms of $(alpha,beta)$-fuzzyleft ideals (right ideals, bi-ideals, interior ideals) of an orderedsemigroup, where$alpha,betain{in_{gamma},q_{delta},in_{gamma}wedgeq_{delta}, in_{gamma}vee q_{delta}}$ and $alphaneqin_{gamma}wedge q_{delta}$. Special attention is paid to$(in_{gamma},ivq)$-left ideals (right ideals, bi-ideals, interiorideals) and some related  pr...

Parallel manipulators offer much higher rigidity and smaller mobile mass than their serial counterparts, thus allowing much faster and more precise manipulations. The main disadvantage of parallel robots is their small workspace in comparison to serial arms of similar size. Furthermore, the manipulability of parallel robots is often poor in some regions of the (already small) workspace. Another...

As special depositional environments which are adjacent to the seas, deltas have provided a field for human habitat establishment. Geomorphic features of deltas are in constant transformation due to their dynamic features. Constructing dams on rivers can intensify these changes and cause either negative or positive consequences. Minab delta in Hormozgan Province of Iran is a round or crescent-s...

An interface based on inertial sensors with applications for master slave robotic teleoperation is developed. The interface is composed of two portable inertial sensor units which are placed on the upper and lower arm in order to obtain acceleration and turning rates. The data is internally processed by a DSP in the sensors and yields orientation measurements of the bodies they are attached. Th...

Determine an optimal set of design parameter of PR whose DW fits a prescribed workspace as closely as possible is an important and foremost design task before manufacturing. In this paper, an optimal design method of a linear Delta robot (LDR) to obtain the prescribed cuboid dexterous workspace (PCDW) is proposed. The optical algorithms are based on the concept of performance chart. The perform...

background : an elevation in the mean percentages of the gamma delta t lymphocytes per total t cells in the epithelium of the small intestine has a diagnostic value for celiac disease.  this study aimed to measure the percentages of the peripheral blood gamma delta t lymphocytes in the adults' celiac disease and healthy controls. materials and methods: in this case-control study the absolute nu...

One of the research directions in recent decades is the construction of manipulators with parallel architecture. These mechanisms are closed-loop structures that consist of numerous separate serial chains acting in parallel and connecting the fixed base to the moving platform. Equipped with revolute or prismatic actuators, parallel manipulators have a robust construction and can move bodies of ...

– One of the important applications of robots is in material handling and transport of various shaped objects. In cases where an object cannot be directly grasped by the robot gripper, and must be carried by a hook, it may be subject to undesirable swings during transport. This paper presents an analytical method for minimizing the oscillation of a suspended object during transport. This method...