Results 111 to 120 of about 177,160 (312)

Singular values of multiple eta-quotients for ramified primes [PDF]

open access: yesarXiv, 2013
We determine the conditions under which singular values of multiple $\eta$-quotients of square-free level, not necessarily prime to~6, yield class invariants, that is, algebraic numbers in ring class fields of imaginary-quadratic number fields. We show that the singular values lie in subfields of the ring class fields of index $2^{k' - 1}$ when $k ...
arxiv  

Enge Weltinnenräume [PDF]

open access: yes21: Inquiries into Art, History, and the Visual
The dimensions of the giant globes built in the second half of the nineteenth century quickly make us forget that they are paradigmatic cases of miniaturized worlds. This article focuses on Élisée Reclus’s project for the Paris “Exposition Universelle” of 1900. A relief globe of about 127 meters in diameter was to be housed in an even bigger globe. The
openaire   +2 more sources

A Computational Study of the MoO2(acac)2 Catalyzed Epoxidation of Ethylene with Hydrogen Peroxide and t‐Butyl Hydroperoxide

open access: yesChemCatChem, Volume 15, Issue 1, January 9, 2023., 2023
Epoxidation of ethylene with the cis‐MoO2(acac)2 catalyst and the H2O2 and tert‐butyl hydroperoxide oxidants to ethylene oxide reveals different mechanisms based on density functional theory calculations. H2O2 favors an associative pathway slightly over others while a step‐wise mechanism is preferred for tert‐butyl hydroperoxide.
George Dhimba   +2 more
wiley   +1 more source

Analytical, Theoretical and Experimental Investigation of Linear Viscoelastic Thin Plate Deflection with Two Edges Fixed and the Other Two Edges Simply Supported

open access: yesJournal of Engineering and Sustainable Development, 2007
A polyester and composite polyester thin plate have been tested under a certain constant distributed load (q=8N/mm2) so as to give a linear behavior over the plane of area at constant temperature (T=15ºC). The plate has been tested for thickness values (
Muhsin J. Jweeg   +2 more
doaj  

Implementing cryptographic pairings at standard security levels [PDF]

open access: yesarXiv, 2014
This study reports on an implementation of cryptographic pairings in a general purpose computer algebra system. For security levels equivalent to the different AES flavours, we exhibit suitable curves in parametric families and show that optimal ate and twisted ate pairings exist and can be efficiently evaluated.
arxiv  

Monolagen‐Spezifische Struktur und Dynamik von Oberflächen‐ und Polymer‐Gestützten Lipiddoppelschichten

open access: yesAngewandte Chemie, EarlyView.
Das Manuskript untersucht die strukturellen und dynamischen Eigenschaften von Polyethylenglykol‐gestützten Lipiddoppelschichten unter Verwendung einer Methode, die auf Graphen‐induziertem Energietransfer und Line‐Scan‐Fluoreszenz‐Lebenszeit‐Korrelationsspektroskopie basiert. Diese Technik ermöglicht eine subnanometer‐genaue räumliche Auflösung und eine
Narain Karedla   +3 more
wiley   +1 more source

The Effect of Coating Pd/Al2O3 and PdAg/Al2O3 Catalysts with [BMIM][DCA] for the Selective Hydrogenation of 1‐Octyne in 1‐Octene

open access: yesChemCatChem, Volume 15, Issue 1, January 9, 2023., 2023
Catalysts have SKILLS too – the SCILL effect: Whilst all uncoated catalysts showed close to a 100 % conversion of the substrates, the optimised SCILLs (Solid Catalysts with an Ionic Liquid Layer) were able to significantly decrease octene conversion and also improve the 1‐octene gain at high octyne conversions. A 1‐octene gain was achieved with 4 ML of
Revana Chanerika   +3 more
wiley   +1 more source

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