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Pt–Ir/Al2O3 catalysts for the ring opening of naphthenes. Performance as a function of time
(Springer, 2019-06)
The catalytic performance of a Pt?Ir/Al2O3 catalyst for the selective ring opening of decalin was studied as a function of time. Fresh and used catalysts were evaluated with the reaction tests of cyclohexane dehydrogenation ...
Dissecting the Space-Time Structure of Tree-Ring Datasets Using the Partial Triadic Analysis
(Public Library of Science, 2014-09)
Tree-ring datasets are used in a variety of circumstances, including archeology, climatology, forest ecology, and wood technology. These data are based on microdensity profiles and consist of a set of tree-ring descriptors, ...
The cohomology ring of the 12-dimensional Fomin-Kirillov algebra
(Academic Press Inc Elsevier Science, 2016-03)
The 12-dimensional Fomin-Kirillov algebra FK3 is defined as the quadratic algebra with generators a, b and c which satisfy the relations a2=b2=c2=0 and ab+bc+ca=0=ba+cb+ac. By a result of A. Milinski and H.-J. Schneider, ...
A gas-diffusion gold-ring tip: Fabrication, characterization, and application in Electrocatalysis
(Elsevier Science Inc, 2009-07)
A gas-diffusion gold-ring microelectrode used as scanning electrochemical microscopy tip was fabricated. Compared to the ring-tip for droplet dispensation reported before, the as sa-fabricated micropipette tip has a larger ...
The obstruction to excision in K-theory and in cyclic homology
(Springer, 2006-12)
Let f: A → B be a ring homomorphism of not necessarily unital rings and I A an ideal which is mapped by f isomorphically to an ideal of B. The obstruction to excision in K-theory is the failure of the map between relative ...
Effects of varying curvature and width on the electronic states of GaAs quantum rings
(Sociedade Brasileira de Física, 2014)
Structuring eccentric-narrow planetary rings
(Elsevier, 2005-12)
A simple and general description of the dynamics of a narrow-eccentric ring is presented. We view an eccentric ring which precesses uniformly at a slow rate as exhibiting a global m = 1 mode, which can be seen as originating ...
The formation of medium-sized rings by the intramolecular cyclization of arylnitrenium ions
(Pergamon-elsevier Science LtdOxfordInglaterra, 2003)