Results 81 to 90 of about 6,884,755 (187)
Réflexion autour du désherbage d'une collection de périodiques scientifiques de la Bibliothèque de Genève [PDF]
La pratique du désherbage a été introduite récemment à la Bibliothèque de Genève. Ce travail propose une réflexion autour de la mise en place du désherbage d’une collection de périodiques scientifiques déposée dans un dépôt extérieur et constituée pour l’
Nussbaumer Schmutz, Anne-Sophie, +1 more
core
Effect of Ni content on microstructure and properties of Co-based superalloys
Co-based superalloys casting ingots were prepared by vacuum smelting furnaces, and the influence of Ni content on the microstructure and lattice misfit of Co-based superalloys were studied by X-ray diffraction analysis (XRD) and scanning electron ...
ZHOU Pengjie +5 more
doaj +1 more source
An experimental measurement of the staggered magnetization curve for a Haldane spin chain
Long-range magnetic ordering in R_2 Ba Ni O_5 (R=magnetic rare earth) quasi-1-dimensional mixed-spin antiferromagnets is described by a simple mean-field model that is based on the intrinsic staggered magnetization function of isolated Haldane spin ...
A. Zheludev +33 more
core +1 more source
An Anomalous Internal Oxidation of Dilute Cu-Ni Alloys at 800 °C under 1 atm O2
The oxidation of six Cu-xNi alloys (x = 0.2, 0.6, 1, 2, 3, 4 at.%) was studied at 800 °C under 1 atm O2. All of the binary Cu-Ni alloys underwent an internal oxidation of Ni in the presence of an external scale of Cu2O and CuO, in agreement with the ...
Lu L. Y., Liu L. L., Wang S., Niu Y.
doaj +1 more source
Je n’ai ni pére ni mére, ni dieu ni frére
Siempre me impresionó el inicio del Kaspar Hauser que dirigiera Fassbinder. La película narra la historia de un niño -fruto de la relación que la madre, aristócrata alemana, tuvo con un oficial francés durante la ocupación napoleónica secuestrado y apartado del mundo al poco de nacer y que un amanecer, veinte años más tarde, aparece en la plaza de un ...
openaire +3 more sources
Fe-Ni Sulphides within a CM1 clast in Tagish Lake [PDF]
The composition, abundance and mineral associations of Fe-Ni sulphides within a CM1 clast in Tagish Lake are described, and compared with Fe-Ni sulphides in the carbonate-rich and carbonate-poor lithology of Tagish Lake, as well as Fe-Ni sulphides from ...
Bullock, E. S. +3 more
core
Background. There are prerequisites, signs and manifestations of deposits of strategic types of mineral raw materials Cu, Co, Ni, EPG, Sc, V, REE, hydrocarbons and graphite within the Nakyn, Mirninsky and Syuldyukarsky diamond-bearing fields, which are ...
P. A. Ignatov +3 more
doaj +1 more source
Extraction of Ni and Co via D2EHPA in the Presence of Acetate Ion [PDF]
The effect of acetate ion introduced to aqueous solutions was investigated for the extraction/separation of Ni and Co from a dilute sulfate media. The separation of Co and Ni was improved by introducing acetate to aqueous media.
Hamed Nadimi +2 more
doaj
A microwave digestion method to simultaneously determine V, Cr, Ni, Ge and As in geochemical samples by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) is proposed.
SHEN Yu +4 more
doaj +2 more sources

