Results 21 to 30 of about 228,673 (302)

Ultra-Thin Platinum Deposits by Surface-Limited Redox Replacement of Tellurium

open access: yesNanomaterials, 2018
Platinum is the most employed electrocatalyst for the reactions taking place in energy converters, such as the oxygen reduction reaction in proton exchange membrane fuel cells, despite being a very low abundant element in the earth’s crust and thus
Fatima Haidar   +5 more
doaj   +1 more source

Chemical Characterization of Vitreous Finds from Cosenza Cathedral (Calabria – Italy) by the Combined Use of Analytical Techniques

open access: yesOpen Archaeology, 2020
This article presents an archaeometrical research carried out on twenty-six vitreous finds collected in the Cosenza Cathedral (Calabria, Italy). The glasses have been subdivided in two typo-chronological groups. The first group is composed of 14 vitreous
Barca Donatella, Papparella Franca C.
doaj   +1 more source

Structure and properties of strontium-doped phosphate-based glasses [PDF]

open access: yes, 2008
Owing to similarity in both ionic size and polarity, strontium (Sr2+) is known to behave in a comparable way to calcium (Ca2+), and its role in bone metabolism has been well documented as both anti-resorptive and bone forming.
Knowles, Jonathan C.   +18 more
core   +1 more source

Titanium-containing bioactive phosphate glasses [PDF]

open access: yes, 2012
The use of biomaterials has revolutionized the biomedical field and has received substantial attention in the last two decades. Among the various types of biomaterials, phosphate glasses have generated great interest on account of their remarkable ...
Knowles, Jonathan C.   +18 more
core   +1 more source

Role of Overcorrecting minus Lens Therapy in Intermittent Exotropia for Prevention of Constant Exotropia in Children under the Age of 7 Years

open access: yesInternational Journal of Preventive Medicine, 2023
Background: The basis of the overcorrecting minus lens is to induce compliance and consequently prevent constant exotropia. Some previous studies advocated early surgical therapy and others suggested over-minus treatment.
Yousef Alizadeh   +7 more
doaj   +1 more source

Characterization of ceramic powders used in the inCeram systems to fixed dental Prosthesis

open access: yesMaterials Research, 2007
InCeram (Vita Zahnfabrik- Germany) is known as a high strength ceramic being used for core crowns and for fixed partial denture frameworks. InCeram system consists of slip-casting technique which is used for to build the framework, which is then pre ...
Alexandra Almeida Diego   +3 more
doaj   +1 more source

On Glass, in Glass, of Glass: Some Developments in the Combination of Glass and Printmaking [PDF]

open access: yesArts, 2019
This paper considers some examples of creative glass practice and research at the ‘overlap’ of two distinct sectors of art and design—‘glassmaking’ and ‘printmaking’. The unique properties of glass mean that printed imagery can be applied on the glass surface, encapsulated within the glass form and can even be made of glass.
openaire   +2 more sources

On the strength of glasses [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
The remarkable strength of glasses is examined using the random first order transition theory of the glass transition. The theory predicts that strength depends on elastic modulus but also on the configurational energy frozen in when the glass is prepared.
Wisitsorasak, Apiwat, Wolynes, Peter G.
openaire   +3 more sources

Aryl Diazonium Chemistry for the Surface Functionalization of Glassy Biosensors

open access: yesBiosensors, 2016
Nanostring resonator and fiber-optics-based biosensors are of interest as they offer high sensitivity, real-time measurements and the ability to integrate with electronics.
Wei Zheng   +7 more
doaj   +1 more source

Thermal, Structural and Crystallization Study of Niobium Potassium Phosphate Glasses [PDF]

open access: yesMaterials Research, 2015
New glass compositions were investigated in the binary system KPO3-Nb2O5. The glass forming domain was determined by melt-quenching of the starting nominal compositions and it has been experimentally observed that glass samples can be obtained between ...
Clarissa Luiza Justino de Lima   +6 more
doaj   +2 more sources

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