Browsing by Title Artículos de revistas

Now showing items 101-120 of 7549

    • A fast evolving luminous transient discovered by K2/Kepler 
      Rest, A.; Garnavich, P. M.; Khatami, D.; Kasen, D.; Tucker, B. E.; Shaya, E. J.; Olling, R. P.; Mushotzky, R.; Zenteno, A.; Margheim, S.; Strampelli, G.; Neill, James D.; Smith, R. C.; Forster, Francisco; Villar, V. A. (Nature Publishing Group, 2018)
      For decades, optical time-domain searches have been tuned to find ordinary supernovae, which rise and fall in brightness over a period of weeks. Recently, supernova searches have improved their cadences and a handful of ...
    • A femto-satellite localization method based on TDOA and AOA using two CubeSats 
      Vidal Valladares, Matías Gabriel; Díaz Quezada, Marcos Andrés (MDPI, 2022)
      This article presents a feasibility analysis to remotely estimate the geo-location of a femto-satellite only using two station-CubeSats and the communication link between the femto-satellite and each CubeSat. The presented ...
    • A filtering technique for fast Convex Hull construction in R2 
      Ferrada, H; Navarro, CA; Hitschfeld, N (Elsevier B.V., 2020)
    • A formal framework for comparing linked data fragments 
      Hartig, Olaf; Letter, Ian; Pérez, Jorge (Springer, 2017)
      The Linked Data Fragment (LDF) framework has been proposed as auniform view to explore the trade-offs of consuming Linked Data when serversprovide (possibly many) different interfaces to access their data. Every such ...
    • A FPGA-based fast converging digital adaptive filter for real time RFI mitigation on ground based radio telescopes 
      Finger Camus, Ricardo; Curotto, F.; Fuentes, R.; Duan, R.; Bronfman Aguiló, Leonardo; Li, D. (IOP Publishing Ltd, 2018)
      Radio Frequency Interference (RFI) is a growing concern in the radio astronomy community. Single-dish telescopes are particularly susceptible to RFI. Several methods have been developed to cope with RF-polluted environments, ...
    • A framework for adaptive open-pit mining planning under geological uncertainty 
      Lagos, Tomás; Armstrong, Margaret; Homem-de-Mello, Tito; Lagos, Guido; Sauré Valenzuela, Denis (Springer, 2020)
      Mine planning optimization aims at maximizing the profit obtained from extracting valuable ore. Beyond its theoretical complexity-the open-pit mining problem with capacity constraints reduces to a knapsack problem with ...
    • A gallery of bubbles The nature of the bubbles observed by Spitzer and what ATLASGAL tells us about the ... 
      Deharveng, L.; Schuller, F.; Anderson, L. D.; Zavagno, A.; Wyrowski, F.; Menten, K. M.; Bronfman Aguiló, Leonardo; Testi, L.; Walmsley, C. M.; Wienen, M. (2010-12)
      Context. This study deals with infrared bubbles, the H II regions they enclose, and triggered massive-star formation on their borders. Aims. We attempt to determine the nature of the bubbles observed by Spitzer in the ...
    • A game-theoretical approach for policing decision support 
      Espejo, G.; L'Huillier, G.; Weber, Richard (Cambridge Univ Press, 2016)
      Recently, many security-related problems have gained increasing attention from a quantitative perspective. In this paper, we propose a game-theoretical approach to model the interaction between police forces and delinquents ...
    • A gap in the planetesimal disc around HD 107146 and asymmetric warm dust emission revealed by ALMA 
      Marino, S.; Carpenter, J.; Wyatt, M.; Booth, M.; Casassus Montero, Simón; Faramaz, V.; Guzman, V.; Hughes, A.; Isella, A.; Kennedy, G.; Matra, L.; Ricci, L.; Corder, S. (Oxford University Press, 2018)
      While detecting low mass exoplanets at tens of au is beyond current instrumentation, debris discs provide a unique opportunity to study the outer regions of planetary systems. Here we report new ALMA observations of the ...
    • A generalized non-gaussian consistency relation for single field inflation 
      Bravo, R.; Mooij, Sander; Palma Quilodrán, Gonzalo; Pradenas Márquez, Bastián (Iop Publishing LTD, 2018-05)
      We show that a perturbed inflationary spacetime, driven by a canonical single scalar field, is invariant under a special class of coordinate transformations together with a field reparametrization of the curvature ...
    • A generalized parallel task model for recurrent real-time processes 
      Bonifaci, Vincenzo; Wiese, Andreas; Baruah, Sanjoy K.; Marchetti-Spaccamela, Alberto; Stiller, Sebastian; Stougie, Leen (Association for Computing Machinery, 2019)
      A model is considered for representing recurrent precedence-constrained tasks that are to execute on multiprocessor platforms. A recurrent task is specified as a directed acyclic graph (DAG), a period, and a relative ...
    • A genetic link between magnetite mineralization and diorite intrusion at the El Romeral iron oxide-apatite ... 
      Rojas, Paula; Barra, Fernando; Reich Morales, Martín; Deditius, Artur; Simon, Adam; Uribe, Francisco; Romero, Rurik; Rojo, Mario (Springer Verlag, 2018)
      El Romeral is one of the largest iron oxide-apatite (IOA) deposits in the Coastal Cordillera of northern Chile. The Cerro Principal magnetite ore body at El Romeral comprises massive magnetite intergrown with actinolite, ...
    • A geochemical approach to distinguishing competing tectono‑magmatic processes preserved in small eruptive centres 
      McGee, Lucy E.; Brahm Scott, Raimundo; Rowe, Michael C.; Handley, Heather K.; Morgado, Eduardo; Lara, Luis E.; Turner, Michael B.; Vinet, Nicolás; Parada Reyes, Miguel; Valdivia, Pedro (Springer, 2017)
      Small eruptive centres (SECs) representing short-lived, isolated eruptions are effective samples of mantle heterogeneity over a given area, as they are generally of basaltic composition and show evidence of little magmatic ...
    • A geostatistical approach to estimating the parameters of a 3D Cox-Boolean discrete fracture network from ... 
      Hekmatnejad, Amin; Emery, Xavier; Elmo, Davide (Elsevier Ltd, 2019)
      © 2018 Elsevier Ltd This work addresses the problem of parameter inference in the Cox-Boolean discrete fracture network model, in which the fractures are represented by flat discs with random orientations and diameters ...
    • A geostatistical approach to measure the consistency between geological logs and quantitative covariates 
      Adeli, Amir; Emery, Xavier (Elsevier, 2017)
      Core logging is the geological study, recording and classification of petrophysical attributes of drill hole samples, such as lithology, alteration or mineralogical assemblage. The geological logging is qualitative and ...
    • A giant planet shaping the disk around the very low-mass star CIDA 1 
      Curone, P.; Izquierdo, A. F.; Testi, L.; Lodato, G.; Facchini, S.; Natta, A.; Pinilla, P.; Kurtovic, N. T.; Toci, C.; Benisty, Myriam; Tazzari, M.; Borsa, F.; Lombardi, M.; Manara, C. F.; Sanchis, E.; Ricci, L. (EDP Sciences, 2022)
      Context. Exoplanetary research has provided us with exciting discoveries of planets around very low-mass (VLM) stars (0.08 M-circle dot less than or similar to M-*less than or similar to 0.3 M-circle dot ; e.g., TRAPPIST-1 ...
    • A Gibbs Approach to Chargaff’s Second Parity Rule 
      Hart, Andrew; Martínez Aguilera, Servet; Olmos, Felipe (Springer, 2012)
      Chargaff’s second parity rule (CSPR) asserts that the frequencies of short polynucleotide chains are the same as those of the complementary reversed chains. Up to now, this hypothesis has only been observed empirically ...
    • A GIS-based urban and peri-urban landscape representation toolbox for hydrological distributed modeling 
      Sanzana, P.; Gironás, J.; Braud, I.; Branger, F.; Rodriguez, F.; Vargas Mesa, Ximena; Hitschfeld Kahler, Nancy; Muñoz, J. F.; Vicuña, S.; Mejía, A.; Jankowfsky, S. (Elsevier, 2017)
      Flowpaths are significantly affected by land use change and engineered elements across urban catchments. Conventional GIS-based tools for extracting drainage networks were not developed for urban terrains. This work ...
    • A global database of strong-motion displacement GNSS recordings and an example application to PGD scaling 
      Ruhl, Christine J.; Melgar, Diego; Allen, Richard M.; Geng, Jianghui; Goldberg, Dara E.; Bock, Yehuda; Crowell, Brendan W.; Barrientos, Sergio; Riquelme, Sebastian; Baez, Juan Carlos; Cabral-Cano, Enrique; Pérez-Campos, Xyoli; Hill, Emma M.; Protti, Marino; Ganas, Atha (Seismological Society of America, 2019)
      Displacement waveforms derived from Global Navigation Satellite System (GNSS) data have become more commonly used by seismologists in the past 15 yrs. Unlike strong-motion accelerometer recordings that are affected by ...
    • A global observational analysis to understand changes in air quality during exceptionally low anthropogenic ... 
      Sokhi, Ranjeet S.; Singh, Vikas; Querol, Xavier; Finardi, Sandro; Targino, Admir Creso; Andrade, María de Fátima; Pavlovic, Radenko; Garland, Rebecca M.; Massague, Jordi; Kong, Shaofei; Baklanov, Alexander; Ren, Lu; Tarasova, Oksana; Carmichael, Greg; Peuch, Vincent-Henri; Anand, Vrinda; Arbilla, Graciela; Badali, Kaitlin; Beig, Gufran; Belalcazar, Luis; Bolignano, Andrea; Brimblecombe, Peter; Camacho, Patricia; Casallas, Alejandro; Charland, Jean-Pierre; Choi, Jason; Chourdakis, Eleftherios; Coll, Isabelle; Collins, Marty; Cyrys, Josef; da Silva, Cleyton Martins; Di Giosa, Alessandro Domenico; Di Leo, Anna; Ferro, Camilo; Gavidia Calderón, Mario; Gayen, Amiya; Ginzburg, Alexander; Godefroy, Fabrice; González, Yuri Alexandra; Guevara Luna, Marco; Haque, Sk Mafizul; Havenga, Henno; Herod, Dennis; Horrak, Urmas; Hussein, Tareq; Ibarra, Sergio; Jaimes, Mónica; Kaasik, Marko; Khaiwal, Ravindra; Kim, Jhoon; Kousa, Anu; Kukkonen, Jaakko; Kulmala, Markku; Kuula, Joel; La Violette, Nathalie; Lanzani, Guido; Liu, Xi; MacDougall, Stephanie; Manseau, Patrick M.; Marchegiani, Giada; McDonald, Brian; Mishra, Swasti Vardhan; Molina, Luisa T.; Mooibroek, Dennis; Mor, Suman; Moussiopoulos, Nicolás; Murena, Fabio; Niemi, Jarkko; Noe, Steffen; Nogueira, Thiago; Norman, Michael; Pérez Camano, Juan Luis; Petaja, Tuukka; Piketh, Stuart; Rathod, Aditi; Reid, Ken; Retama, Armando; Rivera, Olivia; Rojas, Néstor Y.; Rojas Quincho, Jhojan P.; San José, Roberto; Sánchez, Odon; Seguel, Rodrigo J.; Sillanpaa, Salla; Su, Yushan; Tapper, Nigel; Terrazas, Antonio; Timonen, Hilkka; Toscano, Doménico; Tsegas, George; Velders, Guus J. M.; Vlachokostas, Christos; von Schneidemesser, Erika; Rajasree, V. P. M.; Yadav, Ravi; Zalakeviciute, Rasa; Zavala, Miguel (Elsevier, 2021)
      This global study, which has been coordinated by the World Meteorological Organization Global Atmospheric Watch (WMO/GAW) programme, aims to understand the behaviour of key air pollutant species during the COVID-19 pandemic ...