Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 18831-18850 of 20469

    • Studying star-forming processes at core and clump scales: the case of the young stellar object G29.862-0.0044 
      Areal, M. B.; Paron, S.; Fariña, C.; Ortega, M. E.; Celis Peña, M.; Rubio López, Mónica (EDP Science, 2020)
      Aims. To advance our knowledge of star formation, in addition to statistical studies and large surveys of young stellar objects (YSOs), it is important to carry out detailed studies towards particular objects. Given that ...
    • Studying the integration of solar energy into the operation of a semi-autogenous grinding mill. Part I: ... 
      Pamparana, G.; Kracht, W.; Haas, J.; Ortiz, J. M.; Nowak, W.; Palma-Behnke, R. (Elsevier Ltd, 2019)
      Grinding is one of the most energy-demanding processes of copper mines. Declining ore grades and harder rocks will further intensify this demand. Periods of stressed copper prices, high energy costs and climate change ...
    • Studying the integration of solar energy into the operation of a semi-autogenous grinding mill. Part II: ... 
      Pamparana, G.; Kracht, W.; Haas, J.; Ortiz, J. M.; Nowak, W.; Palma-Behnke, R. (Elsevier Ltd, 2019)
      In the first part of this work, a solar photovoltaic system with battery storage (PV-BESS) and grid backup system to supply a SAG mill was modeled. There, the overall framework, the optimization model, and the model for ...
    • Studying the kinematics of the giant star-forming region 30 Doradus 
      Torres-Flores, S.; Barbá, R.; Maíz Apellániz, J.; Rubio López, Mónica; Bosch, G.; Hénault-Brune, V.; Evans, C. J. (EDP Sciences, 2013)
      We present high-quality VLT-FLAMES optical spectroscopy of the nebular gas in the giant star-forming region 30 Doradus. In this paper, the first of a series, we introduce our observations and discuss the main kinematic ...
    • Studying the multi-scale gas dynamics of disk galaxies through numerical simulations 
      Utreras Contreras, José Mauricio (Universidad de Chile, 2020)
      En los discos galácticos, la rotación galáctica establece el movimiento global del gas, su energía y su momentum pueden transferirse hacia las escalas espaciales de las nubes moleculares. Además, en el medio interestelar, ...
    • Studying the relationship of biotic and abiotic processes in the ocean biome from the point of view of ... 
      Toro Llanco, Nicolás Andrés (Universidad de Chile, 2023)
      El océano, que abarca el 70% de la superficie de la Tierra, presenta muchos ecosistemas, cada uno caracterizado por hábitats, temperaturas y nutrientes distintos. En el núcleo de estos ecosistemas se encuentra el microbioma ...
    • Studying the ultraviolet spectrum of the first spectroscopically confirmed supernova at redshift two 
      Smith, M.; Sullivan, M.; Nichol, R. C.; González Gaitán, Santiago (IOP Publishing Ltd, 2018)
      We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z approximate to 2. DES16C2nm was discovered by the Dark Energy Survey (DES) Supernova ...
    • Studying Type II supernovae as cosmological standard candles using the Dark Energy Survey 
      de Jaeger, T.; Galbany, L.; Gonzalez-Gaitan, S.; Kessler, R.; Filippenko, A. V.; Forster Burón, Francisco; Hamuy, M.; Brown, P. J.; Davis, T. M.; Gutierrez, C. P.; Inserra, C.; Lewis, G. F.; Moller, A.; Scolnic, D.; Smith, M.; Brout, D.; Carollo, D.; Foley, R. J.; Glazebrook, K.; Hinton, S. R.; Macaulay, E.; Nicho, B.; Sako, M.; Sommer, N. E.; Tucker, B. E.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Annis, J.; Avila, S.; Bertin, E.; Bhargava, S.; Brooks, D.; Burke, D. L.; Rosell, A. Carnero; Carrasco Kind, M.; Carretero, J.; Costanzi, M.; Crocce, M.; da Costa, L. N.; De Vicente, J.; Desai, S.; Dieh, H. T.; Doe, P.; Drlica-Wagner, A.; Eifler, T. F.; Garcia-Bellido, J.; Gaztanaga, E.; Gruen, D.; Gruend, R. A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Li, T. S.; Lima, M.; Maia, M. A. G.; Menanteau, F.; Mique, R.; Palmese, A.; Paz-Chinchon, F.; Plazas, A. A.; Romer, A. K.; Roodman, A.; Sanchez, E.; Scarpine, V.; Schubne, M.; Serrano, S.; Sevilla-Noarbe, I.; Soares-Santos, M.; Suchyta, E.; Swanson, M. E. C.; Thomas, D.; Tucker, D. L.; Varga, T. N.; Walker, A. R.; Weller, J.; Wilkinson, R. (Oxford University Press, 2020)
      Despite vast improvements in the measurement of the cosmological parameters, the nature of dark energy and an accurate value of the Hubble constant (H-0) in the Hubble-Lemaitre law remain unknown. To break the current ...
    • Studyng the role of galactic rotation on star formation: numerical experiments 
      Utreras Contreras, José (Universidad de Chile, 2016)
      Estudiamos la formación estelar y el rol de la rotación a escalas galácticas mediante simulaciones numéricas, utilizando el código de grillas adaptativas Enzo. Parte de este trabajo se centra en estudiar tres leyes de ...
    • Styrene copolymerization using a metallocene-MAO initiator system. Homo- and copolymerization of styrene ... 
      Rabagliati, Franco M.; Yáñez, Daniela E.; Canales, Daniel; Quijada Abarca, Juan; Zapata, Paula A. (Springer, 2013)
      The copolymerization of styrene with cyclohexene, 1-methyl-1-cyclohexene, and norbornene using ethenylbisindenylzirconium dichloride and methylaluminoxane, Et(Ind)2ZrCl2-MAO, initiating systems has been tested. The ...
    • The sub-stellar birth rate from UKIDSS 
      Day Jones, A. C.; Marocco, F.; Pinfield, D. J.; Zhang, Z. H.; Burningham, B.; Deacon, N.; Ruiz González, María Teresa; Gallardo, J.; Jones, H. R. A.; Lucas, P. W.; Jenkins, James Stewart; Gomes, J.; Folkes, S. L.; Clarke, J. R. A. (Oxford University Press on behalf of the Royal Astronomical Society, 2013)
      We present a new sample of mid-L to mid-T dwarfs with effective temperatures of 1100– 1700 K selected from the UKIDSS Large Area Survey (LAS) and confirmed with infrared spectra from X-shooter/Very Large Telescope . This ...
    • Subdifferential calculus in the framework of Epi-pointed variational analysis, integral functions, and applications 
      Pérez Aros, Pedro Antonio (Universidad de Chile, 2018)
      La investigación de esta tesis es presentada en seis capítulos, desde el Capítulo 2 al Capítulo 7. El capítulo 2 proporciona una demostración directa de una caracterización reciente de convexidad dada en el marco de ...
    • Subdifferential calculus rules for possibly nonconvex integral functions 
      Correa Fontecilla, Rafael; Hantoute, Abderrahim; Pérez Aros, Pedro (SIAM, 2020)
      We are concerned with the subdifferentials of integral functionals and functions given in the form E-f(x) = f(T) f (t, x)d mu, for a possibly nonconvex normal integrand f defined on a separable Banach with separable dual ...
    • Subdifferential characterization of probability functions under Gaussian distribution 
      Hantoute, Abderrahim; Henrion, René; Pérez-Aros, Pedro (Springer Verlag, 2019)
      © 2018, Springer-Verlag GmbH Germany, part of Springer Nature and Mathematical Optimization Society. Probability functions figure prominently in optimization problems of engineering. They may be nonsmooth even if all input ...
    • Subdifferential of the supremum function: moving back and forth between continuous and non-continuous settings 
      Correa, R.; Hantoute, A.; López, M. A. (Springer, 2020)
      In this paper we establish general formulas for the subdifferential of the pointwise supremum of convex functions, which cover and unify both the compact continuous and the non-compact non-continuous settings. From the ...
    • Subdifferential of the Supremum via Compactification of the Index Set 
      Correa Fontecilla, Rafael; Hantoute, Abderrahim; López, M. A. (Springer, 2020)
      We give new characterizations for the subdifferential of the supremum of an arbitrary family of convex functions, dropping out the standard assumptions of compactness of the index set and upper semi-continuity of the ...
    • Subdifferential representation formula and subdifferential criteria for the behavior of nonsmooth functions 
      Correa, Rafael; Gajardo, Pedro; Thibault, Lionel (PERGAMON-ELSEVIER SCIENCE LTD, 2006-08-15)
      Several kinds of behaviors of extended-real-valued lower semicontinuous functions are known to be equivalent to certain appropriate conditions in terms of the Clarke subdifferential. The paper provides a systematic study ...
    • Subdifferentiation of the Infimal Convolution and Minimal Time Problems 
      Hantoute, Abderrahim; Zakaryan, Taron (Heldermann Verlag, 2020)
      We investigate in the Banach setting (not necessarily reflexive) first-order variations of the infimal convolution of fairly general functions. We characterize different subdifferentials and differentiability concepts of ...
    • Subdinámica proyectiva de subshifts de tipo finito sobre grupos virtualmente-Z 
      Bustos Gajardo, Álvaro Matías (Universidad de Chile, 2016)
      El presente trabajo de memoria analiza subshifts de tipo finito definidos sobre grupos virtual- mente-Z a partir de su subdinámica proyectiva: el estudio del subshift obtenido al restringir cada configuración a un subgrupo ...
    • Subduction zone fluids and arc magmas conducted by lithospheric deformed regions beneath the central Andes 
      Contreras Reyes, Eduardo Eliseo; Díaz, D.; Bello González, Juan Pablo; Slezak, Katarzyna Anna; Potin, Bertrand Jean-Maurice; Comte Selman, Diana Patricia; Maksymowicz Silva, Ana Maria; Ruiz, J. A.; Osses Alvarado, Axel Esteban; Ruiz, S. (Nature, 2021)
      Dehydration of the oceanic subducting slab promotes the formation of magmatic arcs, intra-slab intermediate-depth seismicity, and hydration of the overlying mantle wedge. However, the complex permeability structure of the ...