We are answering one of the most exciting open questions in physics and cosmology, that is the question why we seem to experience four-dimensional space-time with three ordinary and one time dimension. We know for more than 70 years that (elementary) particles have spin degrees of freedom, we also know that they have besides spin also charge degrees of freedom, both degrees of freedom in additi...

We propose a possible answer to one of the most exciting open questions in physics and cosmology [1–11], that is the question why we seem to experience four-dimensional space-time with three ordinary and one time dimensions. We have known for more than 70 years that (elementary) particles have spin degrees of freedom, we also know that besides spin they also have charge degrees of freedom, both...

This paper presents a novel family of fully isotropic parallel mechanisms whose output link is provided with Schoenflies motion, i.e., it can freely translate in space and rotate about a fixed direction. A methodology is proposed that makes use of the theory of screws to synthesize desired forms for both the direct and the inverse Jacobian matrices. In particular, these are made diagonal and co...

A dumbbell-shaped rigid body can be used to represent certain large spacecraft or asteroids with bimodal mass distributions. Such a dumbbell body is modeled as two identical mass particles connected by a rigid, massless link. Equations of motion for the five degrees of freedom of the dumbbell body in a central gravitational field are obtained. The equations of motion characterize three orbit de...

This latest version of the vBow adds three degrees of freedom to the previous design, allowing for rotational motion across, vertical motion above, and longitudinal motion along the virtual strings, in addition to the original lateral motion of the bow stroke. Like the previous design, this version of the vBow uses servomotors with encoders and cable systems, to sense bow position and provide h...

In this paper, combining with the examples, we focus on the study of general Kinematics modeling and simulation of Four degrees of freedom carrying manipulator based on laboratory development. On the basis of calculating kinematic positive and inverse solutions, a space trajectory curve is planed which is composed of three sections of straight lines and two pieces of circular arc. For 4R manipu...

BACKGROUND The objective of our study was to develop a novel capacitive force sensor that enables simultaneous measurements of yaw torque around the pressure axis and normal force and shear forces at a single point for the purpose of elucidating pressure ulcer pathogenesis and establishing criteria for selection of cushions and mattresses. METHODS Two newly developed sensors (approximately 10...

The focus of this work is to design, develop and implement enhanced control and competitive robot arm thick and short cost. Design of four degree of freedom and talent of robot arm is to complete the accurate and simple tasks, such as optical materials processing, will be integrated into the mobile platform, as an assistant for the industrial labor force. Between the robot arm equipped with wea...

in this article, vehicle cornering stability and brake stabilization via bifurcation analysis has been investigated. in order to extract the governing equations of motion, a nonlinear four-wheeled vehicle model with two degrees of freedom has been developed. using the continuation software package matcont a stability analysis based on phase plane analysis and bifurcation of equilibrium is perfo...

By using the finite element $p$-Version in convection-diffusion problems, we can attain to a stabilized and accurate results. Furthermore, the fundamental of the finite element $p$-Version is augmentation degrees of freedom. Based on the fact that the finite element and the meshless methods have similar concept, it is obvious that many ideas in the finite element can be easily used in the meshl...