Browsing by Subject "Boron"
Now showing items 1-11 of 11
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Article
Boron adsorption on alumina (Al2O3) and magnesia (MgO) in aqueous solutions: A comparative study
(2006)The adsorption of boron on alumina (Al2O3) and magnesia (MgO) has been investigated in aqueous solutions as a function of pH, boron concentration, amount of adsorbent, ionic strength and temperature. Analysis of the ...
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Article
Boron determination in a multi element national water monitoring program: the absence of legal limits
(2010)Directive 98/83/EC concerning the drinking water quality and Directive 80/777/EC for Natural Mineral Water demand strict control and monitoring for the presence of metals. The State General Laboratory as the official control ...
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Article
Boron in groundwaters of Nicosia (Cyprus) and its treatment by reverse osmosis
(2007)Boron levels in groundwaters of Nicosia have been determined, compared to previous concentration data and correlated to the concentration of other chemical species contained in the groundwaters under investigation. According ...
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Article
The effect of boron additions on the tribological behaviour of TiN coatings produced by electron-beam evaporative PVD
(1999)TiN coatings containing small amounts of boron were synthesized by electron beam evaporating a Ti-B alloy material from a single crucible source into a plasma comprising Ar or an Ar/N2 mixture at a substrate temperature ...
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Article
Effects of Ge concentration, boron co-doping, and hydrogenation on fiber bragg grating characteristics
(2005)In this paper, we compare photosensitivity, refractive-index modulation depth, spectral bandwidth, and excess loss through the inscription of fiber Bragg gratings in unloaded and hydrogen-loaded fibers with low- or ...
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Article
Seasonal variation, chemical behavior and kinetics of uranium in an unconfined groundwater system
(2014)The seasonal changes in the concentration of uranium in an unconfined groundwater system in Cyprus have been investigated and compared to corresponding changes of boron and salinity, to better understand the chemical ...
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Article
Spectophotometric studies on the competitive adsorption of boric acid (B(III)) and chromate (Cr(VI)) onto iron (OXY) hydroxide (Fe(O)OH)
(2012)Various pollutants (e.g. boron and hexavalent chromium) are introduced into the aquatic environment from a variety of industrial operations causing damages to environment and affecting human health. Boron in irrigation ...
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Article
Structure, hardness and mechanical properties of magnetron-sputtered titanium-aluminium boride films
(1999)TiAlB films nominally 2 μm thick were produced by simultaneous sputtering from TiAl and TiB2 targets onto Si-(110) and AISI316 stainless steel substrate materials at a temperature of 170°C. The influence of different B/Al ...
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Doctoral Thesis Open Access
Ανταγωνιστική προσρόφηση B(III)-Cr(VI) σε επιφάνειες μεταλλοξειδίων και πετρωμάτων
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2017-07)Αντικείμενο έρευνας της παρούσας Διδακτορικής Διατριβής αποτελεί η μελέτη της ανταγωνιστικής προσρόφησης B(III) και Cr(VI) στα μεταλλοξείδια αλουμίνα (Αl2O3), μαγνήσια (MgO) και (όξυ)υδροξείδιο του σιδήρου (Fe(O)OH) καθώς ...
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Doctoral Thesis Open Access
Δομή και δραστικότητα σιλανο-αμινοαλκοολών με σύμπλοκα οξοβαναδίου και βορίου σε υδατικό διάλυμα
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2006-06)Οι αντιδράσεις βαναδικών και βορικών με τα καρβασιλατράνια μέθοξυ{N,N',Ν''-2,2',3-[δις(1-μεθυλαιθανολατο)(προπυλο)]αμινο}πυρίτιο (12), s,s-μέθοξυ{N,N',Ν''-2,2',3-[δις(1-μεθυλαιθανολατο) (προπυλο)]αμινο}πυρίτιο (s,s-12), ...
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Doctoral Thesis Open Access
Υβριδικά πυριτικά υλικά ως ροφήτες βορίου και υποδοχείς νανοσωματιδίων: διδακτορική διατριβή
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2006-11)Στο παρόν διδακτορικό συντέθηκαν πυριτικά υλικά με τη μέθοδο sol-gel τα οποία έχουν χρησιμοποιηθεί σε δυο διαφορετικές εφαρμογές. Η πρώτη εφαρμογή είναι η ανάπτυξη μεθοδολογίας για ρόφηση βορικών ανιόντων από υδατικά ...