نتایج جستجو برای: ptolemy constant
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Introduction: Launched in 2004, the Rosetta spacecraft [1], which is en-route to rendezvous with, and land on, comet 67P/Churyumov-Gerasimenko [2], will awake from its current deep space hibernation on January 20, 2014 (i.e. by the time of the conference it will be known whether this was successfully completed or not). Our abstract for the 44 LPSC [3] describes some of the operations that will ...
University Press. All rights reserved. No part of this book may be reproduced in any form by any electronic or mechanical means (including photocopying, recording, or information storage and retrieval) without permission in writing from the publisher, except for reading and browsing via the World Wide Web. Users are not permitted to mount this file on any network servers. Introduction Ptolemy's...
Abstract When the Dark Matter mass is below eV-scale, its cosmological occupation number exceeds ones of photons from cosmic microwave background as well relic neutrinos. If such decays to pairs neutrinos, it implies that experiments seek detection neutrino may be sensitive this additional form “dark radiation”. Here we study prospects for taking into account various options forecasted performa...
With the use of micro sensors on the rise in technologies today a need for a better understanding of the interactions of such sensors is crucial. Many challenges arise when trying to model and simulate networks of these sensors (also called sensor networks). Sensors have various capabilities and constraints that provide this difficulty. A complete model of a sensor network is needed to improve ...
The ESA Rosetta spacecraft followed comet 67P at a close distance for more than 2 yr. In addition, it deployed the lander Philae on to the surface of the comet. The (surface) composition of the comet is of great interest to understand the origin and evolution of comets. By combining measurements made on the comet itself and in the coma, we probe the nature of this surface material and compare i...
T he Ptolemy Project (http:/ www.ptolemy.ca) is a recently developed model of electronic access to medical literature for surgeons in developing countries. The program provides for East African surgeons to become research affi liates of the University of Toronto and have access to the full text resources of the university library, via a secure system that monitors and evaluates their usage [1]....
The mapping class group of a surface with one boundary component admits numerous interesting representations including as a group of automorphisms of a free group and as a group of symplectic transformations. Insofar as the mapping class group can be identified with the fundamental group of Riemann’s moduli space, it is furthermore identified with a subgroup of the fundamental path groupoid upo...
Typical complex systems that involve microsensors and microactuators exhibit heterogeneity both at the implementation level and the problem level. This naturally leads to a heterogeneous approach to system design that uses domain-specific models of computation (MoC) at various levels of abstractions to define a system, and leverages multiple CAD tools to do simulation, verification, and synthes...
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