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The Border Gateway Protocol (BGP) is one of the key components of today's Internet infrastructure. Many ISPs rely on BGP for convergence of inter-domain routes upon BGP link failures. However, the convergence of BGP requires several seconds of downtime, which may cause critical performance degradation of applications. In this paper, we propose the use of an intra-domain routing protocol to provide...
In this paper, we propose a new robotic catapult with a high stiffness endpoint. The conventional robotic catapults based on the closed elastica are robotic elements for generating impulsive motions by utilizing the snap-through buckling. In a typical robotic catapult, the two ends of an elastic strip are fixed to a free joint and an active joint, respectively. Here we found that by adding only the...
In this paper, we propose a new asymmetric robotic catapult based on the closed elastica. The conventional robotic catapults based on the closed elastica which the authors developed are the robotic elements for generating impulsive motions by utilizing a snap-through buckling. In a typical closed elastica, the two ends of an elastic strip are fixed to a passive rotational joint and an active rotational...
The border gateway protocol (BGP) routing system is one of the key components of today's Internet infrastructure. However, the fundamentals of the BGP routing system have remained unchanged since its standardization. The only fault tolerant mechanism currently available is multihoming, which is about increasing the number of peering autonomous systems (ASes). The reliability of the BGP infrastructure...
In this paper, we propose jumping robots catapulted by the closed elastica which the authors developed as a robotic element for generating impulsive motions by utilizing the snap-through buckling. We show that one of our robots, which is about the size of 170 x 90 x 50 [mm], leaps 700[mm] away and 200[mm] high. We also show a legged jumping robot which pushes the ground impulsively by its leg attached...
In this paper, we propose a novel robotic catapult for generating repeated impulsive motions which are considered as a key to achieve creature-like motions by a compact autonomous robot. The proposed robotic catapult is just a bended elastic strip whose two ends are fixed to two rotational joints, i.e., a mechanical closed-loop of an elastic material named the 'closed elastica'. By only driving one...
Tests intended for IP multicast based broadcasting services require a set of clients as receivers of the multicast traffic. Arranging these clients with PC terminals is not efficient for tests against high-end routers and switches of over thousands of interfaces. On the other hand, hardware testers are equipped with hundreds of dedicated test interfaces, however, preparing multiple sets of these hardware...
Microfabricated cantilevers have recently attracted considerable attention as novel label-free chemical and biological biosensors which translate surface reactions into nanomechanical bending motion. However these studies have primarily focused on commercially available silicon cantilevers and relatively little work has been performed on cantilevers fabricated from other materials. Polymeric materials,...
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