455 research outputs found
Angular dependence of magnetic properties in Ni nanowire arrays
The angular dependence of the remanence and coercivity of Ni nanowire arrays
produced inside the pores of anodic alumina membranes has been studied. By
comparing our analytical calculations with our measurements, we conclude that
the magnetization reversal in this array is driven by means of the nucleation
and propagation of a transverse wall. A simple model based on an adapted
Stoner-Wohlfarth model is used to explain the angular dependence of the
coercivity
Acoustic abundance estimation of pilchard (Sardina pilchardus Walb.) in Galician and Cantabric waters. August 1983
Results of the acoustic survey "Saracus-83" are reported in this paper.
This cruise was carried out on board the research vessel "Cornide de Saavedra",
in august 1983 off the Cantabric and Galician coasts in the north of Spain.
The main objective of the survey was to estimate the abundance by age groups
of pilchard (Sardina pilchardus Walb.) present in the area, being this population
apart of the stock wich is considered to exist in the ICES divisions VIIlc
and IXa. The total estimated biomass for pilchard was 697000 tons.
The area of higher abundance was northern Galicia, between Ribadeo
and Finisterre, that coincides with the upwelling area described.On presente ici les resultats de la campagne acoustique realisée par
le B/R "Cornide de Saavedra" dans Aout 1983 au large des cĂŽtes Cantabrique
et Galicienne du N et NW espagnol. Le but de cette campagne a été l'estimation
de l'abondance par classe d'age de la sardine (Sardina pilchardus Walb.) dans
l'aire prospectée qui appartient aux divisions VIIIc et IXa du ICES.
La plus grande abondance a été la partie nord de la Galicie, entre
Ribadeo et Finisterre, qui coincide avec la zone de "upwel1ing" deja signalée
Estudio de la incidencia de las cesĂĄreas en la provincia de Ăuble, ciudad de ChillĂĄn
Incluye BibliografĂ
- âŠ