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Creation of heterogeneous microstructures in copper using high-pressure torsion to enhance mechanical properties
(Elsevier Science SA, 2019-05)
This paper studies the effects of high-pressure torsion (HPT) at ambient temperature on microstructural evolution and mechanical properties enhancement in pure copper. The aim is to introduce gradient microstructure, with ...
Grain boundary and grain interior conduction in γ′-Bi2MoO6
(Elsevier Science, 2005-07)
Impedance spectroscopy of fine grained (<10 μm) γ′- Bi2MoO6 samples, in the frequency range of 0.1 Hz-250 kHz, relevant to sensor applications, up to 800°C, has been used to characterize grain boundary and grain interior ...
Electrical transport properties of manganite powders under pressure
(Elsevier Science, 2012-08)
We have measured the electrical resistance of micrometric to nanometric powders of the La5 /8-y PryCa3 /8 MnO3 (LPCMO with y=0.3) manganite for hydrostatic pressures up to 4 kbar. By applying different final thermal ...
Pest control treatments with phosphine and controlled atmospheres in silo bags with different airtightness conditions
(Pergamon-Elsevier Science Ltd, 2016-10)
The silo bag technology has been extensively used in Argentina for storing grains (e.g. wheat, corn, barley, sunflower and soybean among others) since the mid-1990s. Silo bag are widely considered a hermetic storage system ...
Does the pelletization pressure modify the effective anisotropy of the grains in (Bi,Pb)2223 bulk system?
(Springer, 2017-09)
In this paper we present a new method to determine separately inter and intragranular magnitudes of polycrystalline superconducting materials, such as: intrinsic effective anisotropy, t= ρc/ ρa b, the slope of the linear ...
Pressure induced stability enhancement of cubic nanostructured CeO2
(Molecular Diversity Preservation International, 2020-03)
Ceria (CeO2)-based materials are widely used in applications such as catalysis, fuel cells and oxygen sensors. Its cubic fluorite structure with a cell parameter similar to that of silicon makes it a candidate for ...
Effect of grazing on plant patterns in arid ecosystems of Patagonian Monte
(Wiley Blackwell Publishing, Inc, 2005-10)
Our objective was to assess the relationship between the spatial patterning of perennial grasses (total, grazed, and non-grazed) and shrub patches in rangelands under different grazing pressures of the Patagonian Monte.We ...
Forced flow of granular media: Breakdown of the Beverloo scaling
(Europhysics Letters, 2018-08)
The Beverloo scaling for the gravity flow of granular materials through orifices has two distinct universal features. On the one hand, the flow rate is independent of the height of the granular column. On the other hand, ...
Active LDPE films loaded with biopesticides by supercritical CO2-assisted impregnation for stored grain protection
(Elsevier, 2018-12)
The aim of this contribution was to obtain bioactive materials for stored grain protection and food preservation, by incorporating a biopesticide (1-octen-3-ol) in polyethylene (LDPE) films using supercritical CO2–assisted ...
Implications of processing on the levels of antinutritional factors in cereal grains
(CAB International, 2019-08)
The phytic acid, phenolic compounds, tannins, oxalate and trypsin inhibitors are known as antinutritional factors (ANFs) that commonly are present in cereal grains. They contribute to a lower nutritional value of cereals ...