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author = "Moreno, J."
<< < 2 3 4 5 6 > >>

Found 353 documents, displaying page 4 of 36

Cristalización de vidrios ricos en sílice preparados mediante sol-gel en el sistema alúmina-circona-sílice

Author(s) : Popa, M. , Calderón-Moreno, J. M.
Description : The crystallization of ZrSiO4 and its evolution with temperature from chemically homogeneous alumina-silica-zirconia powders prepared by sol-gel method from alcoxide mixtures was studied in the silica-rich region. A glass with the same composition was obtained by quenching in water from the melt. Th...
Repository : DOAJ-Articles
Language(s) : Spanish

Una placa de arte mueble paleolítico en la provincia de Soria

Author(s) : Timeno Martínez, A. , Fernández Moreno, J. J.
Description : We report here the discovery of a splendid plaque of Palaeolithic figurine art in the province of Soria and, at the same time, we offer an advance of its study which will appear in the review Numantia, III, of Junta de Castilla y León.<br><br>Damos aquí noticia del hallazgo de una magníf...
Repository : DOAJ-Articles
Language(s) : Spanish

Influencia de la distribución de las fibras en la conductividad térnnica de materiales compuestos con matrices de aleaciones de titanio y de magnesio

Author(s) : Alcaraz, D. , Alhama, F. , Moreno, J. A.
Description : Metal matrix composites are materials with an increasing use in industrial applications. Generally, the estimation of their thermal conductivity does not take into account the type of reinforcements distribution within the matrix. By applying the Network Simulation Method, a 2-D network model is des...
Repository : DOAJ-Articles
Language(s) : Spanish

Análisis comparativo de las frecuencias de anomalías congénitas del Instituto Materno Infantil de Bogotá

Author(s) : García HA. , Salguero GA. , Moreno J. , Arteaga C. , Giraldo A.
Description : Comparar las frecuencias de anomalías congénitas en el Instituto Materno Infantil de Bogotá con las reportadas en Latinoamérica por la ECLAMC.
Repository : DOAJ-Articles
Language(s) : Spanish

El dolmen de “El alto de la Tejera” (Carrascosa de la Sierra, Soria). El fenómeno megalítico en el Alto Duero

Author(s) : Jimeno Martínez, A. , Fernández Moreno, J. J.
Description : This paper studies the dolmen of Alto de la Tejera (Carrascosa de la Sierra, Soria) which is the first to be found and excavated in the Upper Duero, in its environmental and archaeological setting, and with a view to modeling the local population and megalithic territoriality in this area. The relat...
Repository : DOAJ-Articles
Language(s) : Spanish

On the Spontaneous CP Breaking in the Higgs Sector of the Minimal Supersymmetric Standard Model

Author(s) : Espinosa, J. R. , Moreno, J. M. , Quirós, M.
Description : We revise a recently proposed mechanism for spontaneous CP breaking at finite temperature in the Higgs sector of the Minimal Supersymmetric Standard Model, based on the contribution of squarks, charginos and neutralinos to the one-loop effective potential. We have included plasma effects for all b...
Repository : arXiv
Language(s) : Undetermined

Fermions on the Electroweak String

Author(s) : Moreno, J. M. , Oaknin, D. H. , Quirós, M.
Description : We construct a simple class of exact solutions of the electroweak theory including the naked $Z$--string and fermion fields. It consists in the $Z$--string configuration ($\phi,Z_\theta$), the {\it time} and $z$ components of the neutral gauge bosons ($Z_{0,3},A_{0,3}$) and a fermion condensate (l...
Repository : arXiv
Language(s) : Undetermined

Top-bottom doublet in the sphaleron background

Author(s) : Moreno, J. M. , Oaknin, D. H. , Quirós, M.
Description : We consider the top-bottom doublet in the background of the sphaleron for the realistic case of large non-degeneracy of fermion masses, in particular $m_b=5$ GeV and $m_t=175$ GeV. We propose an axially symmetric $(r,\theta)$-dependent ansatz for fermion fields and investigate the effects of the n...
Repository : arXiv
Language(s) : Undetermined

Sphalerons in the MSSM

Author(s) : Moreno, J. M. , Oaknin, D. H. , Quiros, M.
Description : We construct the sphaleron solution, at zero and finite temperature, in the Minimal Supersymmetric Standard Model as a function of the supersymmetric parameters, including the leading one-loop corrections to the effective potential in the presence of the sphaleron. At zero temperature we have incl...
Repository : arXiv
Language(s) : Undetermined

Squarks and sphalerons

Author(s) : Moreno, J. M. , Oaknin, D. H. , Quiros, M.
Description : Electric charge and color breaking minima along third generation squark directions do appear in the Minimal Supersymmetric Standard Model for particular regions of the corresponding supersymmetric parameters $A_t$, $\mu$, $\tan\beta$, $m_Q^2$ and $m_U^2$. We have studied possible instabilities of ...
Repository : arXiv
Language(s) : Undetermined
<< < 2 3 4 5 6 > >>

Found 353 documents, displaying page 4 of 36