Results 61 to 70 of about 1,506,998 (305)
GIS spatial analysis of the distribution of snow depth: A study of western Rhodopes, Bulgaria [PDF]
Glasnik Srpskog Geografskog Društva, 2016 The aim of the present research is to show the advantages of information technology in investigating the snow cover. The snow data is usually taken from the measurement in meteorological stations which are often sparsely and insufficient.
Nikolova Valentina, Penkov Aleksandar
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Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement
Advanced Science, EarlyView.The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang +7 more
wiley +1 more source
Advanced Science, EarlyView.A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai +3 more
wiley +1 more source
The projectable hull of an archimedean $ell$-group with weak unit [PDF]
Categories and General Algebraic Structures with Applications, 2017 The much-studied projectable hull of an $ell$-group $Gleq pG$ is an essential extension, so that, in the case that $G$ is archimedean with weak unit, ``$Gin {bf W}$", we have for the Yosida representation spaces a ``covering map" $YG leftarrow YpG$.
Anthony W. Hager, Warren Wm. McGovern
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Applied Sciences, 2022 In this paper, an image analysis framework is formulated for Landsat-8 Operational Land Imager and Thermal Infrared Sensor (OLI/TIRS) scenes using the R programming language.
Polina Lemenkova, Olivier Debeir
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Nilpotent subspaces of maximal dimension in semisimple Lie algebras [PDF]
, 2006 We show that a linear subspace of a reductive Lie algebra g that consists of nilpotent elements has dimension at most equal to the number of positive roots, and that any nilpotent subspace attaining this upper bound is equal to the nilradical of a Borel ...
Kuttler, J +8 more
core +1 more source
Advanced Science, EarlyView.The protein aggregates and gene expression in the middle temporal gyrus (MTG) and somatosensory cortex (SOM) of the postmortem brains of 13 Alzheimer's disease patients were studied in detail, revealing that small hyperphosphorylated tau aggregates increase with Braak stage driven by microglial inflammation.
Elizabeth A. English +9 more
wiley +1 more source
On the Hilbert series of vertex cover algebras of Cohen-Macaulay bipartite graphs
Le Matematiche, 2010 We study the Hilbert function and the Hilbert series of the vertex cover algebra A(G), where G is a Cohen-Macaulay bipartite graph.
Cristian Ion
doaj
On the abelian Galois coverings of an algebra
Journal of Algebra, 1986 Let \(\Lambda\) be a finite dimensional algebra over an algebraically closed field \(k\), given by a pair \((Q,I)\), where \(Q\) is a finite oriented graph without double arrows and \(I\) is an admissible ideal of the path algebra \(kQ\) of \(Q\), \(\pi\) be its fundamental group and \({\tilde \Lambda}\) its universal Galois covering.
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Multipliers and covers of perfect diassociative algebras
Journal of Algebra and Its Applications, 2023 The paper concerns perfect diassociative algebras and their implications to the theory of central extensions. It is first established that perfect diassociative algebras have strong ties with universal central extensions. Then, using a known characterization of the multiplier in terms of a free presentation, we obtain a special cover for perfect ...
openaire +2 more sources