233 research outputs found
-invariance of the completely faithful property of Iwasawa modules
Let be a compact -adic analytic group without torsion element, whose
Lie algebra is split semisimple and be the full subcategory
of the category of finitely generated modules over the Iwasawa algebra
that are also finitely generated as -modules, where . We show that if the class of a module in the
Grothendieck group of equals to the class of a completely
faithful module, then is also completely faithful, where denotes
the image of via the quotient functor modulo the full subcategory of
pseudonull modules. We also generalize a Theorem of Konstantin Ardakov
characterizing the completely faithful property to the case of more general
-adic Lie groups.Comment: 10 page
EXPERIMENTAL TECHNIQUE TO MEASURE THORON GENERATION RATE OF BUILDING MATERIAL SAMPLES USING RAD7 DETECTOR
Thoron (220Rn) is the second most abundant radon isotope in our living environment. In some dwellings it is present in significant amount which calls for its identification and remediation. Indoor thoron originates mainly from building materials. In this work we have developed and tested an experimental technique to measure thoron generation rate in building material samples using RAD7 radon-thoron detector. The mathematical model of the measurement technique provides the thoron concentration response of RAD7 as a function of the sample thickness. For experimental validation of the technique an adobe building material sample was selected for measuring the thoron concentration at nineteen different sample thicknesses. Fitting the parameters of the model to the measurement results, both the generation rate and the diffusion length of thoron was estimated. We have also determined the optimal sample thickness for estimating the thoron generation rate from a single measurement
T. H. Kondratyeva, Metamorfozi szobsztvennogo imenyi (Opüt szlovarja) Izdatyelsztvo Kazanszkovo Unyiverszityéta, 1983. 110 lap
Third minima in actinides - do they exist?
We study the existence of third, hyperdeformed minima in a number of
even-even Th, U and Pu nuclei using the Woods-Saxon microscopic-macroscopic
model that very well reproduces first and second minima and fission barriers in
actinides. Deep ( MeV) minima found previously by \'Cwiok et al. are
found spurious after sufficiently general shapes are included. Shallow third
wells may exist in Th, with IIIrd barriers 200 and 330 keV
(respectively). Thus, a problem of qualitative discrepancy between
microscopic-macroscopic and selfconsistent predictions is resolved. Now, an
understanding of experimental results on the apparent third minima in uranium
becomes an issue.Comment: 5 pages, 3 figures, 02. 03. 2012 - submitted to PR
Light-heavy ion measurements in CR-39 located on the Earth side of LDEF
The azimuthal angle distribution and the charge and energy spectra of selected light-heavy (5 less than or equal to Z less than or equal to 8) stopping particles were measured in a single layer of CR-39 plastic nuclear track detector (PNTD) from the stack of the A0015 experiment located on the Earth-end of the LDEF satellite. The directional incidence of the trapped protons is studied by comparing the azimuthal angle distribution of selected recoils, obtained in the LDEF detectors, to that obtained through calibrations of PNTD's with exposures performed with 200 MeV proton beams from different directions
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