Browsing by Subject "Electrical and Electronic Engineering"

Now showing items 1-18 of 18

    • A cryogenic solid state LO source at 1.9THz 
      Reyes Guzmán, Nicolás; Güsten, Rolf; Graf, Urs; Risacher, Christophe; Ricken, Oliver (ISSTT, 2017)
      The Low Frequency Array instrument at SOFIA is a heterodyne array designed to observe in the complete range between 1.9 and 2.5 THz. It is a 14 pixel instrument, working in a dual polarization configuration. To provide ...
    • A facile hydrothermal synthesis of CeO2 nanocubes decorated ZnO nanostructures: optical and enhanced ... 
      Farhang-Sahlevani, Saeed; Pandiyarajan, Thangaraj; Sanhueza, Felipe; Akbari-Fakhrabadi, Ali; Mansilla, Héctor D.; Contreras, David; Mangalaraja, Ramalinga Viswanathan; Gracia-Pinilla, M. A. (Springer New York LLC, 2019)
      Synthesis of CeO2, ZnO, and CeO2 nanocubes decorated on the surface of ZnO ovals via a simple hydrothermal method was investigated. The crystalline nature and purity of CeO2, ZnO and CeO2 decorated ZnO were confirmed through ...
    • Adjustment of discrete load changes in feeder databases for improving medium-term demand forecasting 
      Paredes, Gonzalo; Vargas Díaz, Luis (Institution of Engineering and Technology, 2017)
      A discrete load change (DLC) event may be described as an abrupt change in feeder demand. These events are due to network reconfigurations, or the connection/disconnection of large consumers to the grid. This phenomenon ...
    • Building a threshold cryptographic distributed HSM with docker containers 
      Muñoz, Caterina; Montoto, Francisco; Bustos Jiménez, Javier; Cifuentes, Francisco (IEEE, 2017)
      The Domain Name System (DNS) has evolved to support the exponential growth of the Internet, by relying heavily on a highly distributed infrastructure. Nevertheless, trust between server must exist in order to guarantee ...
    • Control and Grid Integration of MW-Range Wind and Solar Energy Conversion Systems 
      Cárdenas, Roberto; Pérez, Marcelo; Clare, Jon (Institute of Electrical and Electronics Engineers Inc., 2017)
      Solar-based energy generation has increased by more than ten times over the same period. In total, worldwide electrical energy consumption increased by approximately 6340 TWh from 2003 to 2013. To meet the challenges created ...
    • Correction to The impact of a carbon tax on the chilean electricity generation sector [Energies, 8 (2015) ... 
      Benavides, Carlos; Gonzales, Luis; Diaz, Manuel; Fuentes, Rodrigo; García, Gonzalo; Palma-Behnke, Rodrigo; Ravizza, Catalina (MDPI AG, 2015)
    • Demo: A prototype for a platoon-based cyclist cooperative system 
      Salamanca, Juan; Céspedes Umaña, Sandra; Vinasco, Daniel; Yáñez, Alexis (IEEE, 2017)
      Innovative solutions for smart transportation involve the integration of communication technologies, mobile applications, control mechanisms, and human-to-machine interfaces. In this demo we present the prototype of a ...
    • Design of an optical beam combiner for dual-frequency observation with ALMA 
      Montofré, D.; Baryshev, A.; Hesper, R.; Mena, F. P. (ISSTT, 2017)
      The aim of this work is to improve high-frequency calibration data on longbaseline observations for the ALMA antennas. A dual-frequency atmospheric phase error calibration method is proposedand will be ...
    • Determination of the potency of hexyl-ciprofloxacin molecules that interact with gold nanoparticles in a ... 
      Montero Silva, Francisco; Kogan Bocian, Marcelo; Montenegro, Iván; Guzmán, Fanny; Navarrete, Soledad; Parra, Carolina; Seeger, Michael (Institution of Engineering and Technology, 2019)
      This work determined the potency of hexyl-ciprofloxacin molecules that reversibly interact with gold nanoparticles (AuNPs) passivated with 11-mercaptoundecanoic acid (MUA) on Escherichia coli cells. For this, partition of ...
    • General design theory for single-layer homogeneous absorber 
      Valenzuela, Alvaro Q.; Fernandez, F. Anfbal (1996)
      A simple and natural approach to the single-layer homogeneous absorber problem is developed and used to calculate previously unavailable universal design curves and equations for different orders of solutions. It is shown ...
    • Metallic behavior of Pd atomic clusters 
      Aguilera-Granja, F.; Vega, Andrés; Rogan Castillo, José; García, G. (2007)
      We report a study of the nonmetal-metal transition of free-standing Pd N clusters (2≤N≤21) carried out through two different theoretical approaches that are extensively employed in electronic structure calculations: a ...
    • Modelling of reduced electromechanical interaction system for aircraft applications 
      Ahumada, Constanza; Wheeler, Pat (Institution of Engineering and Technology, 2019)
      © 2019 Institution of Engineering and Technology. All rights reserved.Rotational systems such as aircraft engine drivetrains are subject to vibrations that can damage shafts. Torsional vibrations in drivetrains can be ...
    • Network allocation of BESS with voltage support capability for improving the stability of power systems 
      Cifuentes, Nicolás; Rahmann, Claudia; Valencia, Felipe; Alvarez, Ricardo (Institution of Engineering and Technology, 2019)
      © 2019 Institution of Engineering and Technology. All rights reserved.The stability of future power systems will be challenged by high shares of converter-based generation technologies (CBGTs). To prevent instability ...
    • On the improvement of positioning accuracy in WiFi-based wireless network using correntropy-based kernel ... 
      Xue, Nan; Luo, Xiong; Wu, Jinsong; Wang, Weiping; Wang, Long (Wiley Blackwell, 2019)
      Currently, we have witnessed the rapid development of data-driven machine learning methods, which have achieved very effective results in communication systems. Kernel learning is a typical nonlinear learning method in the ...
    • Silver nanowire arrays electrochemically grown into nanoporous anodic alumina templates 
      Riveros, G.; Green, S.; Cortes, A.; Gómez, H.; Marotti, R. E.; Dalchiele, E. A. (2006)
      Silver nanowire arrays with high aspect ratios have been prepared using potentiostatic electrodeposition within the confined nanochannels of a commercial porous anodic aluminium oxide template. The nucleation and growth ...
    • SoC control for improved battery life and throughput performance under VST-TDMA 
      Torres, Boris; Quintero, Vanessa; Estévez Montero, Claudio; Orchard Concha, Marcos; Azurdia Meza, César (IEEE, 2017)
      Energy independence is a wireless device quality that demands the utmost exigency. Energy harvesting devices (EHD) alleviate the energy constraints demanded by these nodes and with the use of protocols, such as variable ...
    • State-of-charge estimation to improve decision making by MAC protocols used in WSNs 
      Quintero, V.; Pérez, A.; Estévez, C.; Orchard, M. (Institution of Engineering and Technology, 2019)
      Energy conservation is a topic of great interest in wireless sensor networks (WSNs). Various techniques have been proposed to minimise the energy consumption. One approach is to design medium access control (MAC) protocols ...
    • Thermal study of multilayer resistive random access memories based on HfO 2 and Al 2 O 3 oxides 
      Cazorla, Manuel; Aldana, Samuel; Maestro, Marcos; González, Mireia Bargalló; Campabadal, Francesca; Silva Moreno, Enrique Esteban; Jiménez-Molinos, Francisco; Roldán, Juan Bautista (AVS Science and Technology Society, 2019)
      An in-depth analysis including both simulation and experimental characterization of resistive random access memories (RRAMs) with dielectric stacks composed of two layers of HfO 2 and Al 2 O 3 stacked in different orders ...