Search results for "Modes"
showing 10 items of 235 documents
Daimler Trucks in India – Foreign Market Entry Modes and Location Decisions
2011
High-pressure lattice dynamics in wurtzite and rocksalt indium nitride investigated by means of Raman spectroscopy
2013
We present an experimental and theoretical lattice-dynamical study of InN at high hydrostatic pressures. We perform Raman scattering measurements on five InN epilayers, with different residual strain and free electron concentrations. The experimental results are analyzed in terms of ab initio lattice-dynamical calculations on both wurtzite InN (w-InN) and rocksalt InN (rs-InN) as a function of pressure. Experimental and theoretical pressure coefficients of the optical modes in w-InN are compared, and the role of residual strain on the measured pressure coefficients is analyzed. In the case of the LO band, we analyze and discuss its pressure behavior considering the double-resonance mechanis…
Influence of a nonlinear coupling on the supratransmission effect in modified sine-Gordon and Klein–Gordon lattices
2017
International audience; In this paper, we analyze the conditions leading to the nonlinear supratransmission phenomenon in two different models: a modified fifth order Klein–Gordon system and a modified sine-Gordon system. The modified models considered here are those with mixed coupling, the pure linear coupling being associated with a nonlinear coupling. Especially, we numerically quantify the influence of the nonlinear coupling coefficient on the threshold amplitude which triggers the nonlinear supratransmission phenomenon. Our main result shows that, in both models, when the nonlinear coupling coefficient increases, the threshold amplitude triggering the nonlinear supratransmission pheno…
Genetic Variability of Hepatitis C Virus before and after Combined Therapy of Interferon plus Ribavirin
2008
We present an analysis of the selective forces acting on two hepatitis C virus genome regions previously postulated to be involved in the viral response to combined antiviral therapy. One includes the three hypervariable regions in the envelope E2 glycoprotein, and the other encompasses the PKR binding domain and the V3 domain in the NS5A region. We used a cohort of 22 non-responder patients to combined therapy (interferon alpha-2a plus ribavirin) for which samples were obtained before initiation of therapy and after 6 or/and 12 months of treatment. A range of 25-100 clones per patient, genome region and time sample were sequenced. These were used to detect general patterns of adaptation, t…
Latvijas aizsargājamo augu motīva izmantošana T – krekla grafiskajā dizainā
2016
Latvijas Universitātes Pedagoģijas, psiholoģijas un mākslas fakultātes Izglītības zinātņu nodaļas Mākslas profesionālā bakalaura studiju programmas 4. kursa studentes Elvas Vismanes (Stud. apl. Nr. EV10051) diplomdarbā „Latvijas aizsargājamo augu motīva izmantošana T – krekla grafiskajā dizainā” tiek izpētītas aktuālākās 21. gadsimta modes tendences un sabiedrībā pastāvošais viedoklis par augu aizsardzības problemātiku. Diplomdarbā ir trīs daļas. Teorētiskajā daļā tiek apkopota informācija par auga attēlojumu apģērba dizainā 21. gadsimtā, kā arī ar augu aizsardzību saistītas publikācijas. Empīriskajā daļā tiek izanalizētas 21. gadsimta modes tendences apģērba dizainā, kā arī izstrādāta anke…
Agroecological engineering
2015
Earth has recently entered the new era of the Anthropocene, during which the rise of human activities are impacting for the first time ecosystems and climate on the global scale. Since the 1960s the green revolution has improved food production in quantity using industrially-designed agriculture, which has led to global pollution by pesticides and losses of food quality, biodiversity and soil carbon. As a consequence there is a need to implement agroecological practices in order to produce food safely and in a sustainable way. This virtual issue presents principles and applications of agroecological engineering, exemplified in 19 selected review articles from the journal Agronomy for Sustai…
L'ombra lunga di Zarlino
2021
"The long shadow of Zarlino" · The first part is devoted to high¬lighting the special relevance modes have in Zarlino’s writings, where they are considered as “the forms of the compositions”. Zarlino reconsid¬ers, revises, and reorganizes modes from book to book. A crucial point is in the Dimostrationi Harmoniche (1571), with the proposal of a new modal order that no longer begins with D but rather with C. Zarlino wants to convince his readers that this new order is more rational and coherent than the previous one, since all the species of the perfect intervals (diapa¬son, diapente, diatessaron) now start from the same note, C. Moreover, the sequence of the finales finally coincides with th…
Hawking radiation of massive modes and undulations
2012
We compute the analogue Hawking radiation for modes which posses a small wave vector perpendicular to the horizon. For low frequencies, the resulting mass term induces a total reflection. This generates an extra mode mixing that occurs in the supersonic region, which cancels out the infrared divergence of the near horizon spectrum. As a result, the amplitude of the undulation (0-frequency wave with macroscopic amplitude) emitted in white hole flows now saturates at the linear level, unlike what was recently found in the massless case. In addition, we point out that the mass introduces a new type of undulation which is produced in black hole flows, and which is well described in the hydrodyn…
Vibrational modes of the stibine molecule
2005
International audience; In this paper, we use the algebraic approach to describe the vibrational modes of stibine molecule (of C3v molecular symmetry group) up to 21 quanta. As the stibine molecule exhibits stretch-bend resonances, we build an algebraic pyramidal coupling operator between stretching modes and bending modes adapted to this molecule. The standard deviation associated to the fit of the vibrational levels is 1.75 cm-1.
Ciencia en las aulas: Prácticas pedagógicas, cultura material e historia de la ciencia en la obra de Modesto Bargalló en España (1894-1939)
2020
La presente tesis doctoral aborda la biografía de Modesto Bargalló (1894-1981), centrada en sus orígenes, sus años de formación y de docencia en España (1894-1939). El relato biográfico confeccionado, atendiendo a las perspectivas más recientes sobre la aproximación biográfica, le revela como testigo y actor destacado de la renovación pedagógica experimentada por enseñanza de las ciencias en el primer tercio del siglo XX. Dicho relato ha sido elaborado a partir del estudio de su ingente producción impresa (como sus manuales de ciencias y obras para maestros), incluyendo algunas obras hasta ahora inéditas como el boletín Faraday, fundado por Bargalló en 1928 y considerada la primera publicac…