Gough Island—A Possible Sanctuary
نویسندگان
چکیده
منابع مشابه
Bee sanctuary
The mysterious disappearance of entire bee colonies, known as colony collapse disorder or CCD, has mystified researchers for a couple of years now (see Curr. Biol. 17, R389). It was first observed in the US, where highly industrialised bee-keeping practices mean that colonies are shipped across the continent to work large areas of a single crop. But whether this stress or other factors are resp...
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Two rigid bodies linked by six general constraints form a new rigid body which may have different assemblies depending on the type of constraints which are used. It might occur that some of the assemblies are infinitesimal mobile, shaky, snapping or even mobile with one or more degrees of freedom. In this paper we investigate the so called Stewart-Gough platform, which consists of two rigid bod...
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This paper describes a method to solve the direct kinematics of a generic Stewart-Gough manipulators. The method is formulated in terms of a search in the space of rigid body transformations. The underlying idea is that the solutions of the direct kinematics can be obtained by moving the end-effector body according rotations and translations and accounting for the rigidity conditions. The paper...
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The robustness of robot calibration with respect to sensor noise is sensitive to the manipulator poses used to collect measurement data. The present paper proposes an algorithm based on a constrained optimization method which allows one to choose an set of measurement configurations. It works by selecting iteratively one pose after another inside the workspace, and after a few steps a set of N ...
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The Sanctuary project at UCSD is building a secure infrastructure for mobile agents, and examining the fundamental security limits of such an infrastructure. First, what do we mean by \secure"? An obvious issue is the privacy of computation. With standard approaches for agent-based systems, a malicious server has access to the complete internal state of an agent: software agents have no hopes o...
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ژورنال
عنوان ژورنال: Oryx
سال: 1957
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300039508