Search results for "RIZ"
showing 10 items of 9613 documents
Self-assembly of square planar rhodium carbonyl complexes with 4,4-disubstituted-2,2′-bipyridine ligands
2020
The impact of non-covalent interactions and reaction conditions on formation and self-assembly of ionic pairs of Rh complexes with 4,4’-disubstituted bipyridine ligands ([Rh(L1)(CO)2][Rh(CO)2Cl2])n (1), [Rh(L1)2Cl2][Rh(CO)2Cl2] (2), ([Rh(L1)(CO)2][Rh(CO)2Cl2][Rh(L1)(CO)2]n([Rh(CO)2(Cl)2])n) (3), ([Rh(L2)CO2] [Rh(CO)2Cl2])n∙EtOH (4), ([Rh(L2)(CO)2])n ([Rh(CO)2Cl2])n (5) (L1 = 4,4’-dimethyl-2,2’-bipyridine, L2 = 4,4’-diamine-2,2’-bipyridine) have been studied. Packing of square planar Rh complexes favor formation of one-dimensional chains. In structure 1, the polymeric chain is formed by the alternating cationic [Rh(L1)(CO)2]+ and the anionic [Rh(CO)2Cl2]- units leading to a neutral pseudo li…
Redzes rakstura novērtēšana datorizētajā redzes skrīningā
2022
Bakalaura darbs ir uzrakstīts latviešu valodā uz 22 lapaspusēm. Tas satur 20 attēlus, 1 tabulu un 50 atsauces uz literatūras avotiem. Pētījuma mērķis bija datorizētās redzes skrīninga iekārtas EYEDOO redzes rakstura testa aprobācija. Darba uzdevumi bija: novērtēt 50 pētījuma dalībnieku redzes raksturu, izmantojot datorizēto testu, novērtēt redzes raksturu bērniem, izmantojot TNO testu, un salīdzināt rezultātus. Saskaņā ar pētījuma rezultātiem bija grūtības atšķirt monokulāru alternējošu redzi no monokulāras redzes vai vienlaicīgas redzes, bet var atlasīt bērnus ar binokulāro redzi, kas ir norma, un bez tā. EYEDOO datorizēta redzes rakstura testa aprēķināta jutība un specifiskums ir 96 %, ka…
Envelopes for sets and functions II: generalized polarity and conjugacy
2018
International audience; Let X,Y be two nonempty sets, Φ an extended real-valued bivariate coupling function on X × Y and Γ a subset of X × Y. The present paper provides extensions to the well-known generalized Φ-conjugacy and Γ-polarity of diverse results of our previous work [2] related to φ-conjucacy and Λ-polarity, where Λ is a subset of a vector space E and φ is a function on E defining the particular coupling function (x,y)→φ(x−y) on E × E. A particular attention is devoted to the conjugacy functions (resp. polarity sets) which are mutually generating. Finally, for a superadditive conjugacy function Φ, we obtain a full description of the class of Φ-envelopes.
Beatrice d’Aragona (1458-1508), una napoletana alla corte d’Ungheria
2022
Personaggio marginale nelle cronache rinascimentali ne, Beatrice d’Aragona merita forse qualche considerazione maggiore, considerato il suo ruolo nel panorama monarchico europeo tra il XV e il XVI secolo. Scopo di questo articolo non è tracciare una biografia di Beatrice d’Aragona ma attirare l’attenzione sul suo profilo di donna di potere tra due regni e valorizzarne l’agire in ambito politico internazionale, ponendo l’attenzione anche sull’educazione ricevuta e l’autorevolezza derivante sua famiglia di origine. Personaje marginal en las crónicas renacentistas napolitanas, Beatriz de Aragón quizá merezca una mayor consideración, dado su papel en la escena monárquica europea entre los siglo…
Active disturbance rejection control of linear induction motor
2017
This paper proposes the theoretical framework and the experimental application of the active disturbance rejection control to linear induction motors. Such a nonlinear control (ADRC) technique can be viewed as a particular kind of input-output linearization control, where the nonlinear transformation of the state is not computed by means of the model, but it is estimated online. Such an approach permits to cope with unmodelling dynamics, as well as uncertainty in the knowledge of the model parameters and exogenous disturbances. The effectiveness of the proposed ADRC control law has been verified both by numerical simulations and experimentally on a suitably developed test setup. Moreover, t…
José Luis Aranguren. Religión pensada, religión vivida
2015
In Aranguren’s work the religious dimension is crucial, when he deals with it from the point of view of the “religious studies” and also when he deals with it from the ethical perspective. In the second case Aranguren speaks about an “ethics open to religion”. The article tries to show that in the second case there is an evolution in Aranguren’s thought with two stages. In the first one, religion appears as the satisfaction of human aspirations, rooted in an ethics which is grounded in metaphysics. In the second one God appears as a possible answer to questions open from the perspective of a hermeneutic- narrative ethics.En la obra de Aranguren la dimensión religiosa es crucial, cuando la t…
Etude des concepts sensoriels dans le domaine du vin : de la représentation à la molécule
2022
Demo 100. Atracción electrostática con vidrio y plástico
2013
Objetivo: Mostrar la atracción o repulsión entre cargas eléctricas.