In this paper we provide a vibration analysis model and the modeling method for a fully flexible 3-Parallel-Revolute-joint-and-Spherical-joint (3PRS) manipulator—a sliding-leg tripod with flexible links and joints. A series of tripod configurations are set by rigid kinematics for simulation and experiment. All the links are modeled by finite elements: triangular membranes combined with bending ...

This paper defines the concept of the ‘tripod’ method of design that uses VDC modeling (multi-disciplinary performance-based virtual design and construction modeling), an integrated POP model (a formal and integrated model of Product, Organization and Process of the project) and Extreme Collaboration (a very rapid concurrent and technologically enabled social process of design). The paper focus...

Monomorphic Pt octapod and tripod nanocrystals have been successfully synthesized by an iron nitrate modified polyol process, in which iron nitrate has been proven to be vitally important for slowing down the reduction rate of Pt precursors.

Wen-Xing Yang,1,2,* Ai-Xi Chen,3 Liu-Gang Si,4 Kaijun Jiang,5 Xiaoxue Yang,4 and Ray-Kuang Lee2 1Department of Physics, Southeast University, Nanjing 210096, People’s Republic of China 2Institute of Photonics Technologies, National Tsing-Hua University, Hsinchu 300, Taiwan 3Department of Applied Physics, School of Basic Science, East China Jiaotong University, Nanchang 330013, People’s Republic...

In this paper, the authors describe the design and control of RHex, a power autonomous, untethered, compliant-legged hexapod robot. RHex has only six actuators—one motor located at each hip—achieving mechanical simplicity that promotes reliable and robust operation in real-world tasks. Empirically stable and highly maneuverable locomotion arises from a very simple clock-driven, openloop tripod ...

Executive Overview This article identifies the emergence of the institution-based view as a third leading perspective in strategic management (the first two being the industry-based and resource-based views). We (a) review the roots of the institution-based view, (b) articulate its two core propositions, and (c) outline how this view contributes to the four fundamental questions in strategy. Ov...

The “restrictedness” of a hexapod robot’s legs is the degree to which their free movement is restricted in some way. Using the restrictedness to decide when to lift the legs has previously been shown to allow omnidirectional walking using a free gait as well as a tripod gait during straight-ahead walking. In this paper, we develop the previous system to improve the range of forward walking gait...

An accurate transfer of the inter-occlusal relationship to the articula-tor is essential for the fabrication of a prosthesis. 1 The accurate articulation of working casts results in less time spent adjusting occlusion. This has a direct effect on the quality of the restoration and the operational cost of treatment. 2 Therefore, an ideal registration material and technique combination would allo...