Dynamo Theory and Earth's Magnetic Field Paul Demorest May 21, 2001 1 Intro duction The Earth's magnetic field belongs in that class of physical phenomena which are commonplace yet also very complex. ... 3 Single Disc Dynamo Before we dive into the mess of equations and approximations that describe how fluid motion and magnetic field interact, it is useful to demonstrate a very simple system which exhibits dynamo action. ... A system without fluid motion cannot support a magnetic field indefinitely. ...

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... THE TIME HAS COME FOR "THUNDER BOOKS" . ... You may have forgotten what a thunder book is, or maybe you didn't ever use that name. ... It is a handy reference to those things you need to know about soils and how they behave. ... Well, if you knew how to use them as pages in a thunder book it would surely be a good start, but you need something uniquely yours. ... It has always been my belief that the mission of a soil survey is to help people understand and wisely use soil resources. ... Good read. ...

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... The problem of increasing the critical error rate of quantum-cryptography protocols by varying a set of letters in a quantum alphabet for space of a Иxed dimensionality is studied. ... It is shown that, in the absence of basis reconciliation, a protocol with the tetrahedral alphabet has the highest critical error rate among the protocols considered, while after the basis reconciliation, a protocol with the continual alphabet possesses the highest critical error rate. ...

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... It is sometimes called the `thermoelectric figure-of-merit,' although this name is more often given to the dimensionless combination ZT sS 2 T X K In the above formulas, s, S, and K are respectively the material electrical conductivity, thermopower (Seebeck coefficient), and thermal conductivity, and T is the operating temperature or the average temperature T1 T2 a2 of the converter, with T1 and T2 being the respective cold and hot end temperatures. ... We first consider the thermal conductivity. ...

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... Next Routine] [List of Routines] NAME: ADD_HEADER PURPOSE: addition information from FITS-headers MPFS-frames DESCRIPTION: The function computes the total exposure, mean value zenit distance and modified FITS header CALLING SEQUENCE: Result =ADD_HEADER( headers ) CATEGORY: reduction MPFS-data INPUTS: Headers = String array FITS-headers from the MPFS data OUTPUTS: Header = String array containing the header from the FITS file. ... OPTIONAL INPUT KEYWORD PARAMETERS: BEFORE = Keyword string name. ...

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... Siberian Lang . Minority languages of Siberia as our cultural heritage . ... The project ?Development of the web-site ?Minority languages of Siberia as our cultural heritage? (on the material of the languages of the basin Middle Yenisei and the Middle and the Upper Taz)? was realized at the Laboratory for Computational Lexicography, Research Computing Centre, Lomonosov Moscow State University, with financial support from Russian Foundation for the Humanities, grant 12-04-12049.љ ...

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