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Now showing items 3431-3440 of 3805
Kraft lignin as filler in PLA to improve ductility and thermal properties
(Elsevier, 2015-10)
[EN] Kraft lignin (KL) and acetylated Kraft lignin (AKL) were used as filler for the elaboration of composites
with poly(lactic acid) (PLA) in different concentrations (0.5, 1, 5, 10 and 20%) by extrusion method at
200 ...
Joint cost of energy under an optimal economic policy of hybrid power systems subject to uncertainty
(Elsevier, 2015-08-01)
Economical optimization of hybrid systems is usually performed by means of LCoE (levelized cost of energy) calculation. Previous works deal with the LCoE calculation of the whole hybrid system disregarding an important ...
In Vitro Degradation of PLCL/nHA Biodegradable Scaffolds
(Taylor & Francis, 2015-04-01)
We investigated the effect of bioactive nanoparticles on the in-vitro degradation of PLCL and
PLCL/nHA composite scaffolds. The concentration of nanohydroxyapatite significantly
affected the degradation rate. An increase ...
Emerging application of a structural and chemical analyzer for the complete characterization of metal-rich particulate matter
(ACS, 2013-07-02)
Clean air is considered to be a basic requirement of human health and well-being. An increasing range of adverse health effects has been linked to air pollution, at ever-lower concentrations. This research shows the newly ...
Energetic viability of a polyolefin pyrolysis plant
(American Chemical Society, 2018-03)
The energetic viability of a polyolefin pyrolysis unit that could be installed in a refinery plant was examined. Thermal pyrolysis at 500 and 700 degrees C, and the catalytic cracking by means of HZSM-5 and HY catalysts ...
Strengthening masonry vaults with organic and inorganic composites: An experimental approach
(Elsevier, 2015-11-15)
Polymer-reinforced fibers are now commonly applied to buildings for structural retrofitting purposes. These materials add greater tensile strength to structures, at the expense of a slight increase in weight. However, they ...
Enhanced stability of photo-induced anisotropy due to intermolecular interactions in an azo-prepolymer confined in block copolymer
(Elsevier, 2013-02-08)
Many efforts in the field of azobenzene-containing polymers are concentrated on exploring new material concepts to obtain efficient and stable photo-induced anisotropy. Here, an easy approach to improve the birefringent ...
Applying GPR and Laser Scanner Techniques to Monitor the Ossoue Glacier (Pyrenees)
(Environmental and Engineering Geophysical Society, 2014-12-01)
The Ossoue glacier in the Vignemale massif (3,298 m) is currently the longest and second
largest of the Pyrenees (1,400-m length, 50-ha area), and the only one presenting glacier tongue
morphology. We describe 50 MHz ...
Glacial chronology, environmental changes and implications for human occupation during the upper Pleistocene in the eastern Cantabrian Mountains
(2014-10-14)
Interest in the evolution of Pleistocene glaciers, environmental change and human occupation in southern
Europe is now growing thanks to the availability of fresh dating in different mountains. The demise of Neanderthals
in ...
Hybrid materials based on azopolymer and sol-gel synthesized silver-containing titanium oxide nanoparticles with photoinduced birefringence
(The Royal Society of Chemistry, 2015-01-28)
The main goal of this work was the development of novel nanocomposite films with different optical
properties. A non-toxic water soluble azopolymer was modified with TiO2 nanoparticles and silver containing TiO2 nanoparticles. ...