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Effect of sodium addition on the preparation of hydroxyapatites and biphasic ceramics
HAP and biphasic ceramics of two different HAP and β-TCP proportions with substituted sodium were prepared through an aqueous precipitation method. The prepared powders were characterized by XRD, thermal analysis, FT-IR ...
Receptor models application to multi-year ambient PM10 measurements in an industrialized ceramic area: comparison of source apportionment results
Ambient PM10 data collected in one of the largest industrialized ceramic areas of Europe were used to study similarities and differences in the source apportionment results from three widespread receptor models: chemical ...
Submicellar and micellar reversed-phase liquid chromatographic modes applied to the separation of β-blockers
The behaviour of a reversed-phase liquid chromatographic (RPLC) system (i.e. elution order, resolution and analysis time), used in the analysis of β-blockers with acetonitrile-water mobile phases, changes drastically upon ...
Mineralogy and firing transformations of Permo-Triassic clays used in the manufacturing of ceramic tile bodies
This study is focussed on the behaviour of Permo-Triassic ceramic clays from the area around Castellon (Spain) having a large ceramic industry. The aim of this work is to establish the mineralogical composition of ...
Kinetics of interface state-limited hole injection in α-naphthylphenylbiphenyl diamine (α-NPD) thin layers
Injection-limited operation is identified in thin-film, α-NPD-based diodes. A detailed model for the impedance of the injection process is provided which considers the kinetics of filling/releasing of interface states as ...
Determination of the wear resistance of traditional ceramic materials by means of micro-abrasion technique
Micro-abrasion techniques enable the surface wear of materials to be studied with greater precision than provided by other methods. In addition to their reliability, micro-abrasion techniques allow the wear phenomenon of ...
Computer-aided sketching as a tool to promote innovation in the new product development process
Sketching is an established part of engineering culture. Sketches assist product designers during the creative stages of design and help them to develop inventions. Paper-and-pencil sketching is highly useful but lacks ...
Infusions of acetaldehyde into the arcuate nucleus of the hypothalamus induce motor activity in rats
Aims: The hypothalamic arcuate nucleus (ARH) is one of the brain regions with the highest levels of catalase expression. Acetaldehyde, metabolized from ethanol in the CNS through the actions of catalase, has a role in the ...
Automated scoring of fear-related behavior using EthoVision software
Fear conditioning is a frequently used paradigm for assessing learning and memory in rodents. Traditionally researchers have relied upon scoring of fear-related behavior by human observation, which can be difficult and ...
Averaging methods of the gap heat transfer coefficients and the loss form coefficients of nuclear reactor cores loaded with different fuel bundles
When performing transient analysis in heterogeneous nuclear reactors loaded with different types of fuel bundles is necessary to model the reactor core by a few representative fuel elements with average properties of a ...