Now showing items 241-260 of 526

    • La codificación de los quipus incas 

      Cabrera Ibarra, Hugo; Rosu Barbus, Haret-Codratian; Torres González, Luis Adolfo; Treviño Gutiérrez, Juan Pablo (2007)
    • Laboratorio de nuevos materiales nanoestructurados y catálisis heterogénea 

      Rodríguez González, Vicente (Universidad Nacional Autónoma de México, 2017)
      "El Laboratorio de Nuevos Materiales Nanoestructurados y Catálisis Heterogénea (la-nocat) fue creado el año 2010 dentro de la División de Materiales Avanzados (dmav) del Instituto Potosino de Investigación Científica ...
    • Large and reversible elastocaloric effect near room temperature in a Ga-doped Ni–Mn–In metamagnetic shape-memory alloy 

      Camarillo García, Juan Pablo Ramón; Aguilar Ortiz, Christian Omar; Flores Zúñiga, Horacio; Ríos Jara, David; Soto-Parra, Daniel Enrique; Stern Taulats, Enric; Mañosa, Lluis; Planes, Antoni (2017-02)
      "We report a giant elastocaloric effect near room temperature in a polycrystalline Ga-doped Ni-Mn-In ferromagnetic shape-memory alloy. The elastocaloric effect has been quantified by measuring both isothermal stress-induced ...
    • Large reversible magnetic entropy change in rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons 

      Aryal, Anil; Quetz, Abdiel; Sánchez Valdés, Cesar Fidel; Ibarra Gaytán, Pablo Jesús; Pandey, Sudip; Dubenko, Igor; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (Elsevier, 2018)
      "The crystal structure, and magnetic and magnetocaloric properties of rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons is reported. The ribbon samples crystallize into a single-phase hexagonal Ni2In-type structure ...
    • Light induces oxidative damage and protein stability in the fungal photoreceptor Vivid 

      Hernández Candia, Carmen Noemí; Casas Flores, J. Sergio; Gutiérrez Medina, Braulio (2018)
      "Flavin-binding photoreceptor proteins sense blue-light (BL) in diverse organisms and have become core elements in recent optogenetic applications. The light-oxygen-voltage (LOV) protein Vivid (VVD) from the filamentous ...
    • Linear second-order differential equations for barotropic FRW cosmologies 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio (2003)
      "Simple linear second-order differential equations have been written down for FRW cosmologies with barotropic fluids by Faraoni. His results have been extended by Rosu, who employed techniques belonging to nonrelativistic ...
    • Looking at cities in Mexico with crowds 

      Santani, Darshan; Ruíz Correa, Salvador; Gatica Pérez, Daniel (ACM, 2015)
      "Mobile and social technologies are providing new opportunities to document, characterize, and gather impressions of urban environments. In this paper, we present a study that examines urban perceptions of three cities in ...
    • Loop formation in graphitic nanoribbon edges using furnace heating or Joule heating 

      Jia, Xiaoting; Campos Delgado, Jessica Rosaura; Gracia Espino, Edgar Eduardo; Hofmann, Mario; Muramatsu, Hiroyukim; Kim, Yoong Ahm; Hayashi, Takuya; Endo, Morinobu; Kong, Jing; Terrones Maldonado, Mauricio; Dresselhaus, Mildred (2009-07)
      "Here the authors report the use of either furnace heating or Joule heating to pacify the exposed graphene edges by loop formation in a novel graphitic nanoribbon material, grown by chemical vapor deposition. The edge ...
    • Magnetic and electrical properties of nitrogen-doped multiwall carbon nanotubes fabricated by a modified chemical vapor deposition method 

      García Betancourt, María Luisa; Vega Cantú, Yadira Itzel; Vega Díaz, Sofía Magdalena; Morelos Gómez, Aarón; Terrones Maldonado, Mauricio; Muñoz Sandoval, Emilio (2015)
      "Chemical vapor deposition (CVD) is a preferential method to fabricate carbon nanotubes (CNTs). Several changes have been proposed to obtain improved CNTs. In this work we have fabricated nitrogen-doped multiwall carbon ...
    • Magnetic and martensitic transformations in Ni48Co2Mn35In15 melt-spun ribbons 

      Pandey, Sudip; Quetz, Abdiel; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Aryal, Anil; Dubenko, Igor; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (American Institute of Physics, 2018)
      "As-solidified Ni48Co2Mn35In15 ribbons were prepared through the melt-spinning method, and their structural, magnetic, magnetocaloric properties, and martensitic transformations were investigated. The inverse martensitic ...
    • Magnetic entropy change and refrigerant capacity of rapidly solidified TbNi2 alloy ribbons 

      Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel; Ibarra Gaytán, Pablo Jesús; Álvarez Alonso, Pablo; Gorria, Pedro; Blanco Rodríguez, Jesús Angel (2013-05)
      "The magnetocaloric effect in TbNi2 alloy ribbons synthesized by rapid solidification was investigated. This material crystallizes in a superstructure of the cubic Laves phase structure type C15 (space group F-43m). The ...
    • Magnetic entropy table-like shape in RNi2 composites for cryogenic refrigeration 

      Ibarra Gaytán, Pablo Jesús; Sánchez Llamazares, José Luis; Álvarez Alonso, Pablo; Sánchez Valdés, Cesar Fidel; Gorria, Pedro; Blanco Rodríguez, Jesús Angel (2015-05)
      "We have investigated the magnetocaloric (MC) effect in a two-phase composite based on melt-spun ribbons of the intermetallic DyNi2 and TbNi2 Laves phases. The temperature dependence of the isothermal magnetic entropy ...
    • Magnetic fields produced by non-concentric and non-coplanar currents in circular loops 

      Espejel Morales, Raúl Arturo; Murguía Romero, Gabriela; Calles Martínez, Alipio Gustavo; Morán López, José Luis (IOP Publishing, 2019)
      "A numerical calculation for the stationary magnetic field produced by arrangements of non-concentric and non-coplanar loop current circuits is presented. The calculation is done by superposing the solution of the magnetic ...
    • Magnetic matrices used in high gradient magnetic separation (HGMS): a review 

      Ge, Wei; Encinas Oropesa, Armando; Araujo Palomo, Elsie Evelyn; Song, Shaoxian (2017)
      "HGMS is effective in separating or filtering fine and weakly magnetic particles and widely applied in mineral processing, water treatment, cell and protein purification. The magnetic matrix is a crucial device used in ...
    • Magnetic properties and size distribution of magnetite nanoparticles covered by oleic acid 

      Fernandez Afonso, Yilian; Maury Toledo, Augusto; García Zaldívar, Osmany; Hernández Landaverde, Martín Adelaido; Ramírez Bon, Rafael; Yañez Limón, José Martín; Díaz Castañón, Sergio; González Alfaro, Yorexis; Calderón Piñar, Francisco de Paula (2017)
      "The particle size and particle size distribution are very important to biomedical applications because the uptake of nanoparticles is strongly dependent on particle size. Oleic acid coated magnetite nanoparticles were ...
    • Magnetic properties of Fe nanoclusters: ab initio calculations of FeN N = 9,15, 27, 51, and 59 

      López Laurrabaquio, Guadalupe; Pérez Alvarez, Mario; Montejano Carrizales, Juan Martín; Aguilera Granja, Juan Faustino; Morán López, José Luis (Sociedad Mexicana de Física, A. C., 2006)
      "The magnetic properties of iron clusters (FeN, N = 9, 15, 27, 51, and 59 atoms) at T = 0 K with bcc–like structure and bulk parameters are studied using ab initio methods. In these studies we consider the spin–orbit ...
    • Magnetic properties of fe1 / crn nanoinclusions in fe 

      Pedro Gilberto, Alvarado Leyva; Montejano Carrizales, Juan Martín; Morán López, José Luis (Sociedad Mexicana de Física, A. C., 2002)
      "The magnetic properties of Fe1/CrN inclusions in a Fe matrix are calculated as a function of the Cr number of atoms N at zero temperature, and for N ? 168. The electronic structure is determined by using a realistic ...
    • Magnetic structure and magneto-volume anomalies in Er(2)Fe(17) compound 

      Álvarez Alonso, Pablo; Gorria, Pedro; Marcos, Jorge Sánchez; Puente Orench, Inés; Rodríguez Velamazán, José Alberto; Cuello, Gabriel J.; Sánchez Llamazares, José Luis; Blanco Rodríguez, Jesús Angel (2011)
      "Neutron powder diffraction shows that the intermetallic Er(2)Fe(17) compound with hexagonal crystal structure has a ferrimagnetic ground state (T(C) = 303 K). At T = 5 K the magnetic moments of Fe sublattice (mu similar ...
    • Magnetic, thermal and magnetocaloric properties of Ni50Mn35In14.5B0.5 ribbons 

      Pandey, Sudip; Quetz, Abdiel; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Aryal, Anil; Dubenko, Igor; Mazumdar, Dipanjan; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (VBRI Press, 2017)
      "The structural, thermal, magnetic, and magnetocaloric properties of Ni50Mn35In14.5B0.5 melt-spun ribbons have been investigated using room-temperature x-ray diffraction (XRD), differential scanning calorimetry (DSC), and ...
    • Magnetism of carbon nanostructures and in situ TEM dynamic transformations of carbon-based nanomaterials. 

      Rodríguez Manzo, Julio Alejandro (2007)
      "Durante las últimas dos décadas se ha logrado sintetizar materiales de carbono con distintas formas estructurales y dimensiones en el orden de nanómetros, siendo los fullerenos y los nanotubos de carbono (NTC) dos ejemplos ...