Patterns of event propagation in online social networks provide novel insights on the modeling and analysis of information dissemination over networks and physical systems. This paper studies the importance of follower links for event propagation on Twitter. Three recent event propagation traces are collected with the user languages being used to identify the Network of Networks (NoN) structure...

Researchers have reported on the importance of the rib cage in maintaining mechanical stability in the thoracic spine and on the validity of a compressive follower preload. However, dynamic mechanical testing using both the rib cage and follower load has never been studied. An in vitro biomechanical study of human cadaveric thoracic specimens with rib cage intact in lateral bending, flexion/ext...

The paper briefly presents the dynamic synthesis of mechanisms with superior couplings, force, and speed distribution, efficiency, loss coefficient, coefficient or motion transmission function, determination variable angular input from crank cam based on solving equation Lagrange, variation follower (adept) integration Newton’s equation, analysis several models taken into account. In end, origi...

This study attempted to establish an optimal design and perform dynamic analysis for a spring-actuated cam-linkage composite mechanism in rated 12 kV, 25 kA vacuum circuit breaker (VCB). The of the VCB involves two steps: first step stiffness closing springs cam profile, based on three-order polynomial motion curve follower; second four-bar linkage. To minimize surplus work operating mechanism,...

When multiple robots collaboratively transport or manipulate a load, both motion and force need to be considered. This is especially true when the load is fragile or needs to be moved rapidly. Tight force coordination is possible if all robots share their force information and the grasp geometry is completely known. When this is not the case, a common approach is to use the leader/follower stra...

A computerized approach for analyzing the tolerances in disk cam mechanisms with a flatfaced follower is presented in this paper. Based on the simulated higher-pair contact analysis, the kinematic deviation of the follower motion caused by the tolerance amount of each design parameter can be determined numerically. The method is validated by means of analyzing the case of an eccentric circular ...

This paper provides solutions for a single-leader-dual-follower (SLDF) teleoperation system to collaboratively transport an object. First, regulate the direct-teleoperated follower robot (DFR), we employ relative pose transformation algorithm, based on “re-fixing” leader and DFR together, enable that operator can ergonomically guide without requiring any specific initial position, ensuring high...

This study deals with the vibration response of sandwich plate with nano-composite core and smart magneto-strictive face sheets. Composite core is reinforced by carbon nanotubes (CNTs) and its effective elastic properties are obtained by the rule of Mixture. Terfenol-D films are used as the face sheets of sandwich due to magneto-mechanical coupling in magneto-strictive material (MsM). In order ...

The aim of this study was to design a navigation system composed of a human-controlled leader vehicle and a follower vehicle. The follower vehicle automatically tracks the leader vehicle. With such a system, a human driver can control two vehicles efficiently in agricultural operations. The tracking system was developed for the leader and the follower vehicle, and control of the follower was pe...