Analisi tridimensionale di fenomeni di filtrazione attraverso rilevati arginali in presenza di alterazioni
Studio di come le alterazioni, costituite dalle tane degli animali influenzano la filtrazione all'interno degli argini
Materials Literature
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Simulation of cold rolling of bearing rings taking into account the temperature factor
To ensure the manufacturing accuracy of the bearing rings it is necessary to predict cold rolling process parameters (tool feed rate, forces in the contact area between tool and workpiece, cooling modes, etc.). Therefore, at the process design stage to determine their values, correct mathematical model of the rolling…
exTAS:a new concept in three axis spectroscopy for small samples
The progress in neutron delivery systems and in neutron focusing techniques has made possible neutron studies of excitations in sub-cm 3 -sized single crystals, which are still much larger than crystal sizes needed for standard laboratory characterization techniques. In an effort to further reduce this gap we are prop…
Cover Picture: Molecular Origin of the Hydrolytic Activity and Fixed Regioselectivity of a ZrIV‐Substituted Polyoxotungstate as Artificial Protease (Chem. Eur. J. 31/2014)
A multitechnique approach has been applied to identify the thermodynamic and kinetic parameters related to the regioselective hydrolysis of human serum albumin (HSA) promoted by the Wells–Dawson polyoxometalate (POM), K15H[Zr(α2-P2W17O61)2]. In accordance with different interaction studies, hydrolysis experiments have…
Reversal pathway dependent asymmetric recovery effect in polycrystalline FeNi/FeMn bilayers
For the exchange biased polycrystalline FeNi/FeMn bilayers, we systematically studied the ferromagnet (FM) magnetization reversal pathway dependent recovery effect of training using a vector vibrating sample magnetometer. Our experimental results show unambiguously that the well-known recovery effect strongly depends…
Preparation of highly luminescent CdSe quantum dots by reverse micelles
CdSe quantum dots (QDs) with relatively high photoluminescence (PL) quantum yield (QY) (about 30%) were prepared by a safe, low-cost, and simple synthesis method, utilizing a sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/water/cyclohexane microemulsion system. Cadmium chloride (CdCl 2 ) and selenium powder were used a…
ChemInform Abstract: An Organic—Inorganic Hybrid Compound Containing Imidazolium Cations and a One‐Dimensional Lithium Hexacyanidocobaltate‐Based Anionic Framework.
Abstract (imiH)2[CoLi(CN)6(H2O)2] (imi: imidazole) is synthesized by reaction of Li3[Co(CN)6] with imidazolium chloride in aqueous solution followed by slow evaporation at room temp.
Extraordinary Tunability of the Superexchange Interactions in Nanoparticles of the Multiferroic 0.50BiFeO3-0.50PbTiO3
The coexistence and coupling of magnetic and ferroelectric orderings in single phase multiferroics has evinced enormous scientific interest as it involves breaking of time reversal and space inversion symmetries in the same material. The mutual controllability of the two diverse orderings in multiferroics has potentia…
Surface instability of a semi-infinite isotropic laminated plate under surface van der Waals forces
By means of complex variable method, the present work demonstrates that the surface of a semi-infinite isotropic laminated plate that is being attracted to a rigid contactor through van der Waals forces is always unstable. Two distinct surface instability modes are identified, and their wavenumbers and wavelengths are…
ChemInform Abstract: The Ce2Li0.39Ni1.61Si2 Structure as a New Derivative of the AlB2 Family.
Abstract Ce2Li0.39Ni1.61Si2 is prepared by melting a stoichiometric mixture of the elements and subsequent annealing (Ta crucible, 1.
High temperature electrical conductivity in hydrothermally grown ZnO
Abstract Results of measurements of high temperature electrical conductivity (HTEC) in undoped hydrothermally grown ZnO single crystal are presented. HTEC measurements were made under the Zn component vapor pressure (up to 1 atm) and in the temperature range from 873 K to 1273 K. Reliable thermodynamic equilibrium in…
A battery mystery solved
Experiments with x-ray diffraction explain why an important cathode material works as well as it does.
Bacterias sulfato reductoras
In recent years has been increased interest in understanding the behavior and effects produced by sulfate-reducing bacteria in different materials due to their involvement in corrosion processes in key industries such as oil. Sulfate-reducing bacteria are organisms that perform dissimilatory sulfate process, which occ…
Estudio de la corrosión termogalvánica y comportamiento pasivo del Alloy 31 en máquinas de absorción de LiBr mediante técnicas electroquímicas
En esta Tesis Doctoral se estudiará la corrosión termogalvánica generada entre dos electrodos del mismo material (Alloy 31 o cobre) sumergidos en disoluciones concentradas de bromuro de litio (LiBr) imponiendo diferentes gradientes de temperatura y de concentración entre ellos. Esto se conseguirá empleando una celda e…
Truncation strategy for the series expressions in the advanced ENZ-theory of diffraction integrals
The advanced ENZ-theory of diffraction integrals, as published recently in J. Europ. Opt. Soc. Rap. Public. 8, 13044 (2013), presents the diffraction integrals per Zernike term in the form of doubly infinite series. These double series involve, aside from an overall azimuthal factor, the products of Jinc functions for…
SIMPRE: Installation and User Manual
This is the installation and used manual of SIMPRE 1.1, a fortran77 code that can implement different effective electrostatic models based on point charges around a rare earth ion. The program calculates the full set of crystal field parameters, Stark energy levels and spin wave functions, as well as magnetic properti…
Experimental Investigation on the Use of Water Soluble Polyacrylamides as Thickeners During CO_(2) WAG EOR
CO_(2) flooding often results in poor sweep efficiency due to the high mobility ratio caused by its low viscosity. To mitigate this problem, alternate injection of water and CO_(2) slugs (WAG) is widely applied. Recently, numerical simulation and core flood experiments in heavy oil indicate that the use of chemicals i…
SIMPRE: Installation and User Manual
This is the installation and used manual of SIMPRE 1.1, a fortran77 code that can implement different effective electrostatic models based on point charges around a rare earth ion. The program calculates the full set of crystal field parameters, Stark energy levels and spin wave functions, as well as magnetic properti…
Back Cover: Spontaneous Stepwise Self‐Assembly of a Polyoxometalate–Organic Hybrid into Catalytically Active One‐Dimensional Anisotropic Structures (Chem. Eur. J. 31/2014)
An inorganic–organic hybrid surfactant with a hexavanadate cluster as the polar head group underwent stepwise assembly into micelles and finally, a 1D nanobelt structure with the cooperation of hydrophobic, electrostatic, and hydrogen-bonding interactions; these last interactions are directional and lead to the anisot…
Raman Mapping: A local probe for core and interface of Si nanocrystals in Si-SiO2 Nanocomposite
Raman spectroscopy/mapping is used to investigate Si-SiO2 multilayer nanocomposite grown using pulsed laser deposition. The Raman mapping of six films with Si deposition time in the range 45 - 210 s, shows primarily three different regions of Si phonon frequencies in Si nanocrystals. The lowest frequency region 495 -…