• Geomorphological mapping and landforms characterization of a high valley environment in the Chilean Andes 

  Barrera González, Matías; Rodríguez-Oroz, Delia; Alcalá-Reygosa, Jesús; Campos, Néstor (2020)

  Despite the wide diversity of landforms, there are only a few geomorphological maps of the Chilean Central Andes. In this study, we present a detailed geomorphological map on a 1:50.000 scale for the Diguillín Valley (Ñuble ...
• On the Inverse Degree Polynomial 

  Bosch, Paul; Rodríguez, José Manuel; Rosario, Omar; Sigarreta, José María (2019)

  Using the symmetry property of the inverse degree index, in this paper, we obtain several mathematical relations of the inverse degree polynomial, and we show that some properties of graphs, such as the cardinality of the ...
• Fast and Compact Planar Embeddings 

  Ferres, Leo; Fuentes-Sepúlveda, José; Gagie, Travis; He, Meng; Navarro, Gonzalo (2019)

  There are many representations of planar graphs, but few are as elegant as Turán’s (1984): it is simple and practical, uses only 4 bits per edge, can handle self-loops and multi-edges, and can store any specified embedding. ...
• Query rewriting for semantic query optimization in spatial databases 

  Mella, Eduardo; Rodríguez, M. Andrea; Bravo, Loreto; Gatica, Diego (2019)

  Query processing is an important challenge for spatial databases due to the use of complex data types that represent spatial attributes. In particular, due to the cost of spatial joins, several optimization algorithms based ...
• Modeling and energy-based model predictive control of high pressure grinding roll 

  Vyhmeister, Eduardo; Reyes-Bozo, Lorenzo; Rodriguez-Maecker, Roman; Fúnez-Guerra, Carlos; Cepeda-Vaca, Fernando; Valdés-González, Héctor (2019)

  Even though semiautogenous grinding mills and ball mills are normally used in grinding processes, the industry is driven to decrease cost by increasing efficiencies and decreasing energy consumption. High Pressure Grinding ...
• Ammonite biostratigraphy and bioevents in the Jurassic e Cretaceous boundary of central Chile 

  Salazar, Christian; Stinnesbeck, Wolfgang; Alvarez, Miguel (2019)

  Ammonites are abundant and well preserved in the Tithonian-Valanginian (Upper Jurassic eLowerCretaceous) sedimentary successions of the central Chilean Andes, known as the Lo Valdes and Ba~nos delFlaco Formations. A total ...
• Feasibility and Cost Minimisation for a Lithium Extraction Problem 

  Bosch, P.; Contreras, J.P.; Saavedra-Rosas, J. (2019)

  In this paper we address the problem of allocating extraction pumps to wells, when exploiting lithium rich brines, as part of the production of lithium salts. The problem of choosing the location of extraction wells is ...
• Correlations of spectral accelerations in the Chilean subduction zone 

  Candia, Gabriel; Poulos, Alan; Llera, Juan Carlos de la; Crempien, Jorge G.F.; Macedo, Jorge (2020)

  The correlation between spectral accelerations is key in the construction of conditional mean spectra, the computation of vector-valued seismic hazard, and the assessment of seismic risk of spatially distributed systems, ...
• Performance-based assessment of the seismic pseudo-static coefficient used in slope stability analysis 

  Macedo, Jorge; Candia, Gabriel (2020)

  Pseudo-static slope stability procedures are often employed to evaluate the seismic performance of geotechnical slope systems, at least in the initial evaluation stages. To yield meaningful results, these methods should ...
• Aprendizaje basado en un proyecto de gamificación: vinculando la educación universitaria con la divulgación de la geomorfología de Chile 

  Rodríguez-Oroz, Delia; Gómez-Espina, Roberto; Bravo Pérez, María Jesús; Truyol, María Elena (2019)

  With the aim of promoting knowledge of geomorphology through a tool that can be used by society as a whole, in a geomorphology course of geological degree project-based learning (PBL) and gamification were incorporated as ...
• An optimization approach and a heuristic procedure to schedule battery charging processes for stackers of palletized cargo 

  Basso, Franco; Epstein, Leonardo David; Pezoa, Raúl; Varas, Mauricio (2019)

  This paper proposes an approach to develop schedules for charging batteries in a battery center. This problem arises in warehouses and logistics centers that attempt to provide uninterrupted operations with battery powered ...
• Managing premium wines using an (s- 1 , s) inventory policy: a heuristic solution approach 

  Varas, Mauricio; Basso, Franco; Lüer-Villagra, Armin; Mac Cawley, Alejandro; Maturana, Sergio (2019)

  Operations research models are increasingly being used to support decision making in the wine industry. However, they have not yet been used to support inventory management decisions. In this paper, we develop a heuristic ...
• Seismic risk of sliding ground-mounted rigid equipment 

  Jaimes, Miguel A.; Candia, Gabriel (2020)

  This study discusses a general formulation for risk assessment of ground-mounted rigid sliding equipment and contents during earthquakes. The displacement and acceleration response of blocks during earthquakes and risk ...
• Collapse risk assessment of a Chilean dual wall-frame reinforced concrete office building 

  Araya-Letelier, G.; Parra, P.F.; Lopez-Garcia, D.; Garcia-Valdes, A.; Candia, Gabriel; Lagos, R. (2019)

  Several code-conforming reinforced concrete buildings were severely damaged during the 2010 moment magnitude (Mw) 8.8 Chile earthquake, raising concerns about their real collapse margin. Although critical updates were ...
• Observed building damage patterns and foundation performance in Mexico City following the 2017 M7.1 Puebla-Mexico City earthquake 

  Franke, Kevin W.; Candia, Gabriel; Mayoral, J.M.; Wood, Clinton M.; Montgomery, Jack; Hutchinson, Tara; Morales-Velez, Alesandra C. (2019)

  The September 19th, 2017 M7.1 Puebla-Mexico City earthquake introduced strong ground motions into the Mexico City basin, which contains very soft lacustrine soils, dense urban infrastructure, and millions of inhabitants. ...
• Assessment of fragility models based on the Sept 19th, 2017 earthquake observed damage 

  Román de la Sancha, A.; Mayoral, J.M.; Hutchinson, T.C.; Candia, Gabriel; Montgomery, J. (2019)

  Seismic vulnerability evaluations of buildings and critical infrastructure in densely populated cities strongly rely on fragility curves to estimate the probability of reaching or exceeding a given state of damage. Currently, ...
• A New State-of-the-Art Platform for Probabilistic and Deterministic Seismic Hazard Assessment 

  Candia, Gabriel; Macedo, Jorge; Jaimes, Miguel A.; Magna-Verdugo, Carolina (2019)

  A new computational platform for seismic hazard assessment is presented. The platform, named SeismicHazard, allows characterizing the intensity, uncertainty, and likelihood of ground motions from subduction-zone (shallow ...
• Interperiod correlation model for Mexican interface earthquakes 

  Jaimes, Miguel; Candia, Gabriel (2019)

  This article presents a correlation model for pseudo-acceleration, peak ground acceleration, and peak ground velocity residuals using a database of Mexican subduction interface earthquakes at rock sites (NEHRP Class B). A ...
• The September 19, 2017 Mw 7.1 Puebla-Mexico City Earthquake: Observed Rockfall and Landslide Activity 

  Candia, Gabriel; Montgomery, Jack; Lemnitzer, Anne; Martínez, Alejandro (2019)

  This note documents key observations of slope instability and rockfall activity made by the UNAM-GEER reconnaissance team after the Mw 7.1 Puebla-Mexico City earthquake of September 19, 2017. The investigated sites were ...
• Sensing Urban Patterns with Antenna Mappings: The Case of Santiago, Chile 

  Graells-Garrido, Eduardo; Peredo, Oscar; García, José (2018)

  Mobile data has allowed us to sense urban dynamics at scales and granularities not knownbefore, helping urban planners to cope with urban growth. A frequently used kind of dataset are Call Detail Records (CDR), used by ...

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