Search results for "TRANSFORMATION"
showing 10 items of 1634 documents
MOJAVE: Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. VI. Kinematics Analysis of a Complete Sample of Blazar Jets
2009
We discuss the jet kinematics of a complete flux-density-limited sample of 135 radio-loud active galactic nuclei (AGN) resulting from a 13 year program to investigate the structure and evolution of parsec-scale jet phenomena. Our analysis is based on new 2 cm Very Long Baseline Array (VLBA) images obtained between 2002 and 2007, but includes our previously published observations made at the same wavelength, and is supplemented by VLBA archive data. In all, we have used 2424 images spanning the years 1994-2007 to study and determine the motions of 526 separate jet features in 127 jets. The data quality and temporal coverage (a median of 15 epochs per source) of this complete AGN jet sample r…
A synthesis of feasible control methods for floating offshore wind turbine system dynamics
2021
Abstract During the past decade, the development of offshore wind energy has transitioned from near shore with shallow water to offshore middle-depth water regions. Consequently, the energy conversion technology has shifted from bottom-fixed wind turbines to floating offshore wind turbines. Floating offshore wind turbines are considered more suitable, but their cost is still very high. One of the main reasons for this is that the system dynamics control method is not well-adapted, thereby affecting the performance and reliability of the wind turbine system. The additional motion of the platform tends to compromise the system’s performance in terms of power maximization, power regulation, an…
The body-mind problem from a personality relativity theory approach: (Relativity of personality)
2012
The body-mind problem is here posed fromthe General Factor of Personality Theory and mathematically presented as a relativity theory: 1. A two-level-invariant model; 2. The transformation equation between both levels. On a hand, the investigation of personality dynamicsas a consequenceof a stimulant drug provides a system of two coupled differential equations, which adapts to both biological (body) and psychological (mind)levels ofdescription. On the other hand, a system of two coupled partial differential equations is here deduced as the transformation model between the biological and psychological levels. Both models are presented and validated in this paper. The experimental design to va…
Global conservative and multipeakon conservative solutions for the modified camassa-holm system with coupling effects
2014
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2014/606249 This paper investigates the continuation of solutions to the modified coupled two-component Camassa-Holm system after wave breaking. The underlying problem is rather challenging due to the mutual coupling effect between two components in the system. By introducing a novel transformation that makes use of a skillfully defined characteristic and a set of newly defined variables, the original system is converted into a Lagrangian equivalent system, from which the global conservative solution is obtained, which further allows for the e…
Search for anomalous Wtb couplings in single top quark production
2008
Made available in DSpace on 2022-04-28T20:46:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-11-25 Science and Technology Facilities Council In 0.9fb-1 of pp̄ collisions, the D0 Collaboration presented evidence for single top quark production in events with an isolated lepton, missing transverse momentum, and two to four jets. We examine these data to study the Lorentz structure of the Wtb coupling. The standard model predicts a left-handed vector coupling at the Wtb vertex. The most general lowest dimension, CP-conserving Lagrangian admits right-handed vector and left- or right-handed tensor couplings as well. We find that the data prefer the left-handed vector coupling and set u…
Sekcija “Dezinformācijas un sazvērestību radītie riski demokrātijai: Latvijas pieredzes pārlūkošana”: Kopsavilkumi : 2021. gada 25. un 26. februāris
2021
Latvijas Zinātnes padomes fundamentālo un lietišķo projektu programmas projekts “Dezinformācijas un sazvērestību radītie riski demokrātijai: Latvijas pieredzes pārlūkošana” (lzp-2019/1-0278)
Les transformations sociologiques des groupes professionnels enseignants, miroirs d’une crise du système éducatif ?
2022
International audience
Complexation behaviour of hexadentate ligands possessing N2O4and N2O2S2cores: differential reactivity towards Co(ii), Ni(ii) and Zn(ii) salts and str…
2004
Reactions of divalent metal salts of Co, Ni and Zn with 1,2-di(salicylaldimino-o-phenylthio) ethane (H2L1) and 1,2-di(naphthaldimino-o-phenylthio) ethane (H2L2), having N2O2S2 cores, and 1,2-di(O-salicylaldimino-o-hydroxyphenyl) ethane (H2L3), having a N2O4 core, have been explored. Out of the three ligands and the nine products obtained from the corresponding reactions, two ligands and seven products were crystallographically characterized. However, all the ligands and the products were characterized by analytical and spectral methods. Reaction of H2L1 and H2L2 with Co(II) salts results in oxidative cleavage of the C-S bond to produce a Co(III) product bound to two dissimilar tridentate li…
Science and art from a transevolutionary perspective
2018
From its origins, the human species has manipulated not only the real world but also the figurative one. While that manipulative action of the human species over both worlds was critical for the survival of the species in the beginning of its evolution -now transevolution-, it is also true that in the subsequent culture those worlds have been approached by two trades with highly different conceptual bases, science and art. In this paper I hold the thesis that both trades are necessary to know how to be in the world as well as how to transform it in an appropriate way.
La activación de la inmigración
2020
Los enfoques convencionales sobre las migraciones han tendido a considerar frecuentemente a los inmigrantes como sujetos pasivos en sus procesos de incorporación a las sociedades de recepción. En cambio, cada vez contamos con más muestras de la iniciativa de los propios inmigrantes como actores de procesos de cambio, así como nuevas perspectivas de investigación que tratan de dar cuenta de este giro: el reconocimiento de la autonomía de las migraciones, la relevancia de las capacidades y la agencia de los migrantes en diferentes ámbitos y su contribución al desarrollo de las sociedades de recepción. En realidad, los inmigrantes despliegan diversas estrategias, luchas y resistencias contribu…