Repositorio IPICyT: Envíos recientes
Mostrando ítems 841-860 de 2345
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Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound
(Elsevier, 2011)"We have synthesized the intermetallic YPrFe17 compound by arc-melting. X-ray and neutron powder diffraction show that the crystal structure is rhombohedral with space group (Th2Zn17-type). The investigated compound ... -
Paths of water entry and structures involved in the breaking of seed dormancy of Lupinus
(Elsevier, 2016)"Physical dormancy is the water impermeability of the seed coat caused by one or more palisade cell layer(s) called macrosclereids. The specialised structure for water entry sites is the water gap, which serves as a detector ... -
Shape memory behavior of Ni-Fe-Ga and Ni-Mn-Sn ribbons
(EDP Sciences, 2015)"Magnetic Shape Memory Alloys exhibit multifunctional properties due the martensitic transformation (MT) and accompanying changes in the magnetic subsystem. In this work, melt spun ribbons of nominal composition Ni55Fe16Ga29 ... -
Structures and electronic properties of TinV (n = 1–16) clusters: first-principles calculations
(American Chemical Society, 2016)"Structures and electronic properties of TinV (n = 1–16) clusters have been investigated using density functional theory with the generalized gradient approximatio. The calculations have shown that the TinV clusters favor ... -
Optimizing the curie temperature of pseudo-binary RxR'2-xFe17 (R,R' = rare earth) for magnetic refrigeration
(IOP Publishing, 2014)"Several pseudo-binary RxR2-x'Fe-17 alloys (with R = Y, Ce, Pr, Gd and Dy) were synthesized with rhombohedral Th2Zn17-type crystal structure determined from x-ray and neutron powder diffraction. The choice of compositions ... -
Adhesins in Candida glabrata
(MDPI, 2018)"The human fungal pathogen Candida glabrata is causing more and more problems in hospitals, as this species shows an intrinsic antifungal drug resistance or rapidly becomes resistant when challenged with antifungals. C. ... -
Candida glabrata’s genome plasticity confers a unique pattern of expressed cell wall proteins
(MDPI, 2018)"Candida glabrata is the second most common cause of candidemia, and its ability to adhere to different host cell types, to microorganisms, and to medical devices are important virulence factors. Here, we consider three ... -
Isolation and characterization of mercury resistant trichoderma strains from soil with high levels of mercury and its effects on Arabidopsis thaliana mercury uptake
(Scientific Research Publishing Inc, 2018)"Traditional mining activities are usually correlated with high levels of soil pollution, which is a major environmental concern. Extensive mining activities have taken place in the San Joaquin region in the State of ... -
Allometry of root branching and its relationship to root morphological and functional traits in three range grasses
(Oxford University Press, 2011)"The study of proportional relationships between size, shape, and function of part of or the whole organism is traditionally known as allometry. Examination of correlative changes in the size of interbranch distances (IBDs) ... -
Termination of hollow core nanopipes in GaN by an AlN interlayer
(Elsevier, 2016)"Nanopipes associated to screw dislocations are studied by transmission electron microscopy in Si-doped GaN films grown on silicon substrates. The observations revealed that dislocations had an empty core and that an AlN ... -
On the correct estimation of the magnetic entropy change across the magneto-structural transition from the Maxwell relation: study of MnCoGeBx alloy ribbons
(Elsevier, 2017)"An accurate calculation of the different magnetocaloric-related magnitudes derived from the temperature dependence of the magnetic entropy change in materials exhibiting first-order magnetocaloric effect is imperative to ... -
The corn smut-made cholera oral vaccine is thermostable and induces long-lasting immunity in mouse
(Elsevier, 2016)"The use of corn smut for the production of recombinant vaccines has been recently implemented by our group. In this study, the stability and immunogenic properties of the corn smut-based cholera vaccine, based on the ... -
Tuning emission in violet, blue, green and red in cubic GaN/InGaN/GaN quantum wells
(Elsevier, 2016)"Light emission in the three primary colors was achieved in cubic GaN/InGaN/GaN heterostructures grown by molecular beam epitaxy on MgO substrates in a single growth process. A heterostructure with four quantum wells with ... -
Giant reversible inverse magnetocaloric effects in Ni50Mn35In15 Heusler alloys
(Elsevier, 2016)"The magnetic properties and reversibility of the magnetocaloric effect of Ni50Mn35In15 have been studied in the vicinity of the phase transition using magnetization and direct adiabatic temperature change (?Tad) measurements ... -
Phase transition and magnetocaloric properties of Mn50Ni42−xCoxSn8 (0 ≤ x ≤ 10) melt-spun ribbons
(International Union of Crystallography, 2018)"The characteristics of magnetostructural coupling play a crucial role in the magnetic field-driven behaviour of magnetofunctional alloys. The availability of magnetostructural coupling over a broad temperature range is ... -
BiFeO3 codoping with Ba, La and Ti: Magnetic and structural studies
(World Scientific , 2015)"Conventional solid state reaction method, from oxides and carbonates, was employed to prepare bismuth (Bi)-based multiferroic systems. The undoped BiFeO3 (BFO) and the codoped system with Ba, La and Ti (Bi1?xBaxFe1?yTiyO3, ... -
Ablation and optical third-order nonlinearities in Ag nanoparticles
(Dove Press Ltd, 2010)"The optical damage associated with high intensity laser excitation of silver nanoparticles (NPs) was studied. In order to investigate the mechanisms of optical nonlinearity of a nanocomposite and their relation with its ... -
Simple method to synthesize functionalized carbon nanotubes employing cobalt nitrate and acetone by using spray pyrolysis deposition technique
(Hindawi Publishing Corporation, 2012)"Recently alcohols and ketones have been employed to sensitize CNT by CVD. A study has shown the importance of the chemical nature of those carbon precursors on the characteristics of the CNT (carbon nanotubes) obtained. ... -
High-pressure synthesis of β-Ir4B5 and determination of the compressibility of various iridium borides
(American Chemical Society, 2018)"A new iridium boride, beta-Ir4B5, was synthesized under high-pressure/high-temperature conditions of 10.5 GPa and 1500 degrees C in a multianvil press with a Walker-type module. The new modification beta-Ir4B5 crystallizes ... -
Transformation temperatures and electrochemical behavior of polycrystalline Fe-Doped Ni-Mn-Ga and Co-Ni-Ga Alloys
(ESG, 2018)"The effect of Fe addition on martensitic transformation temperatures and electrochemical behavior was studied in polycrystalline Ni51.4Mn24.8-XGa23.8FeX alloys (1<x<2.2) and Co38.3Ni32.1Ga29.6 as alternative to Ni-Mn-Ga ...