1,007 research outputs found
AIGO: a southern hemisphere detector for the worldwide array of ground-based interferometric gravitational wave detectors
This paper describes the proposed AIGO detector for the worldwide array of interferometric gravitational wave detectors. The first part of the paper summarizes the benefits that AIGO provides to the worldwide array of detectors. The second part gives a technical description of the detector, which will follow closely the Advanced LIGO design. Possible technical variations in the design are discussed
Interplay between the magnetic anisotropy contributions of Cobalt nanowires
We report on the magnetic properties and the crystallographic structure of
the cobalt nanowire arrays as a function of their nanoscale dimensions. X-ray
diffraction measurements show the appearance of an in-plane HCP-Co phase for
nanowires with 50 nm diameter, suggesting a partial reorientation of the
magnetocrystalline anisotropy axis along the membrane plane with increasing
pore diameter. No significant changes in the magnetic behavior of the nanowire
system are observed with decreasing temperature, indicating that the effective
magnetoelastic anisotropy does not play a dominant role in the remagnetization
processes of individual nanowires. An enhancement of the total magnetic
anisotropy is found at room temperature with a decreasing nanowire
diameter-to-length ratio (d/L), a result that is quantitatively analyzed on the
basis of a simplified shape anisotropy model.Comment: 8 pages, 4 figure
Use of Gas Emulsion in Blasting Project for Clearing in a Copper Mine in Southern Peru
The gasifiable emulsion is a technological and productive response to the need to reduce operating costs in the mining project, among the improvements with respect to ANFO are a higher detonation velocity (VOD), better fragmentation and reduction of nitrous fumes. In the test mining operation, a commercial explosive mixture called "Q "73 (70% emulsion and 30% ANFO) is used, where the ANFO is composed of 97% ammonium nitrate and 3% diesel, and the explosive mixture "Q "82 (80% emulsion and 20% ANFO) is also used, 7 blasting processes were carried out with a diameter of 12.25 in. in a waste area, the most characteristic rocks found in the blasting project in the copper mine in southern Peru are Toba Cristal (TC), Andesite Basaltic Propylitic (BA-PRO), Andesite Basaltic Argillic (BA-ARG). The results obtained show a reduction of the Power Factor by 1.32%, with respect to the commercial mixtures "Q "73 and "Q "82 an optimum increase in the detonation velocity of 9.92% and 0.59% was obtained, also the high-resolution images of the fumes after blasting indicate a low presence of orange fumes taking a great relevance in the mining sector on a large scale, achieving better results in the blasting phase
Cognitive dissonance induction as an “inoculator” against negative attitudes towards victims
The “belief in a just world” and the related “justice motive” can be construed as a fundamental drive-in people's life. Paradoxically this “justice motive” may motivate people to be unfair by assigning blame to objectively innocent victims. In two experimental studies, we address the possibility that inducing cognitive dissonance can reduce the assigning of blame to innocent victims. Study 1 (n = 71) consisted of a 2 × 2 design in which participants were randomly assigned to two types of induction (Dissonance induction/Awareness Induction Only condition) and two victims' background conditions (innocent victim v non-innocent victim). In Study 2 (n = 171) 3 types of induction were compared (Dissonance Induction/Awareness Induction/Control condition) with all victims' scenarios considering them innocent. Study 1 showed that innocent victims were less negatively evaluated in the Dissonance Induction condition compared to the Awareness Only Induction condition; non-innocent victims were not differently evaluated in both conditions. Study 2 showed that innocent victims were less negatively evaluated in the Dissonance Induction condition compared to the Awareness Induction condition and the Control condition. Overall, findings suggest that cognitive dissonance induction can be an effective mechanism to reduce assigning blame to innocent victims.info:eu-repo/semantics/acceptedVersio
Variabilidade genética e correlações entre o rendimento e seus componentes em caupi (Vigna unguiculata (L.) Walp.) na região Amazônica.
bitstream/item/31909/1/CPATU-BP38.pd
Competição de cultivares de milho no Território Federal de Roraima.
bitstream/item/60085/1/CPATU-PA70.pd
Avaliação preliminar do comportamento de cultivares de sorgo sacarino em Capitão Poço-PA.
bitstream/item/33800/1/CPATU-CirTec32.pd
Angle-resolved and core-level photoemission study of interfacing the topological insulator Bi1.5Sb0.5Te1.7Se1.3 with Ag, Nb and Fe
Interfaces between a bulk-insulating topological insulator (TI) and metallic
adatoms have been studied using high-resolution, angle-resolved and core-level
photoemission. Fe, Nb and Ag were evaporated onto Bi1.5Sb0.5Te1.7Se1.3 (BSTS)
surfaces both at room temperature and 38K. The coverage- and
temperature-dependence of the adsorption and interfacial formation process have
been investigated, highlighting the effects of the overlayer growth on the
occupied electronic structure of the TI. For all coverages at room temperature
and for those equivalent to less than 0.1 monolayer at low temperature all
three metals lead to a downward shift of the TI's bands with respect to the
Fermi level. At room temperature Ag appears to intercalate efficiently into the
van der Waals gap of BSTS, accompanied by low-level substitution of the Te/Se
atoms of the termination layer of the crystal. This Te/Se substitution with
silver increases significantly for low temperature adsorption, and can even
dominate the electrostatic environment of the Bi/Sb atoms in the BSTS
near-surface region. On the other hand, Fe and Nb evaporants remain close to
the termination layer of the crystal. On room temperature deposition, they
initially substitute isoelectronically for Bi as a function of coverage, before
substituting for Te/Se atoms. For low temperature deposition, Fe and Nb are too
immobile for substitution processes and show a behaviour consistent with
clustering on the surface. For both Ag and Fe/Nb, these differing adsorption
pathways leads to the qualitatively similar and remarkable behavior for low
temperature deposition that the chemical potential first moves upward (n-type
dopant behavior) and then downward (p-type behavior) on increasing coverage.Comment: 10 pages, 4 figures. In our Phys. Rev. B manuscript an error was made
in formulating the last sentence of the abstract that, unfortunately, was
missed in the page proofs. Version 2 on arxiv has the correct formulation of
this sentenc
- …