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Wyszukujesz frazę "glass technology" wg kryterium: Temat


Wyświetlanie 1-7 z 7
Tytuł:
Development of optical fiber technology in Poland
Autorzy:
Wójcik, W.
Romaniuk, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/227013.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optical fiber technology
manufacturing/fabrication of optical fibers
photonics
optoelectronics
photonic optical fibers
microstructured optical fibres
polymer optical fibers
optical polymers
silica glass
optical fiber glass
Opis:
Optical fiber technology is an important branch of science and technology, but also economy. Together with related disciplines it creates wider areas like optoelectronics and photonics. Optical fiber technology is developed in this country rather dynamically, proportionally to the available funds designed locally for research and applications. Recently this development was enhanced with considerable funds from European Operational Funds Innovative Economy POIG and Human Capital POKL. The paper summarizes the development of optical fiber technology in Poland from academic perspective during the period of last 2-3 years. Probably the digest is not very not full. An emphasis is put on development of optical fiber manufacturing methods. This development was illustrated by a few examples of optical fiber applications.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 1; 99-104
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Additive "B" on the Properties of Foundry Sands with Hydrated Sodium Silicate Made by Floster Technology
Autorzy:
Izdebska-Szanda, I.
Kamińska, J.
Angrecki, M.
Palma, A.
Stefański, Z.
Powiązania:
https://bibliotekanauki.pl/articles/379919.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
moulding sand
water glass
floster S technology
additive
masa formierska
szkło wodne
technologia floster S
dodatki do mas formierskich
Opis:
The aim of the study was to determine the applicability of a new product added to water glass-containing foundry sands hardened with ethylene glycol diacetate. The new additive designated by the symbol "B" is a composition of aqueous solutions of modified polyalcohols, improving the sand knocking out properties. The scope of studies included testing various mechanical and technological properties of foundry sand mixtures, such as permeability, friability, life cycle of cores and knocking out properties. In the technological studies, two types of water glass with different values of the silica modulus and density, designated as R145 and R150, were used. Moulding sands were prepared with the additive "B". For comparison, reference sands with water glass but without the additive "B" were also made. In Part I of the article, the results of studies of the effect of additive "B" on the properties of foundry sands with water glass hardened by CO2 blowing were discussed.
Źródło:
Archives of Foundry Engineering; 2017, 17, 2; 31-34
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Metal Oxides Nanoparticles on the Selected Strength Properties of Moulding Sand with Water Glass
Autorzy:
Kmita, A.
Powiązania:
https://bibliotekanauki.pl/articles/381812.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative material
foundry technology
water glass
nanoparticles
tensile strength
materiał innowacyjny
technologia odlewnicza
szkło wodne
nanocząstka
wytrzymałość na rozciąganie
Opis:
The modification of water glass with nanoparticles of metal oxides in organic solvents was attempted in the study. The results of investigations of moulding sands with water glass modified by nanoparticles of the selected metal oxides in organic solvents, are presented in the hereby paper [21]. Nanoparticles of ZnO, Al2O3 or MgO in methanol, ethanol or propanol solutions were applied as modifiers of binding agents. Colloidal solutions of the modifiers were introduced into water glass in the amounts of 3, 5 or 7 mass %. Influences of the applied modifier and organic solvents as well as the modifier fraction in the binder on the selected strength properties of moulding sands were tested. On the bases of the analyses of the obtained results the probable mechanism of the water glass modification with nanoparticles of metal oxides was proposed.
Źródło:
Archives of Foundry Engineering; 2015, 15, 3 spec.; 33-38
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Water-Glass Content on Electrical Properties of Silica Sand-Based Moulding Sand
Autorzy:
Opyd, B.
Nowak, D.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/380420.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
microwaves
moulding sand
water glass
electrical properties
innowacyjna technologia odlewnicza
mikrofale
masa formierska
szkło wodne
właściwości elektryczne
Opis:
In the paper, presented are measurements of permittivity εr and loss factor tgδ of moulding sand depending on bonding material content, taken at 2.45 GHz by perturbation method on a stand of wave-guide resonance cavity. The determined electrical properties are crucial for kinetics of microwave heating of sandmixes containing water-glass as a binder. The measurements were taken for two sandmixes with various sand grains. The results indicate that, for a moulding sands containing water-glass, the relationship between loss factor value and binder concentration is linear. All the examined moulding sands, irrespective of their base, show a relatively high susceptibility to action of microwave field of frequency 2.45 GHz. The presented measurements make a ground for developing a mathematical model of microwave heating of the systems moulding sand-foundry tooling.
Źródło:
Archives of Foundry Engineering; 2015, 15, 3 spec.; 59-62
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reclamation of spent moulding sands with inorganic binders in the vibratory reclaimer REGMAS
Regeneracja masy zużytej ze spoiwem nieorganicznym w regeneratorze wibracyjnym REGMAS
Autorzy:
Dańko, J.
Kamińska, J.
Skrzyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/355492.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
moulding sand
modified water-glass sand
reclamation
Floster S technology
masa formierska
regeneracja masy formierskiej
szkło wodne
technologia floster S
Opis:
The results of the reclamation of spent moulding sands with inorganic binder in the prototype vibratory reclaimer REGMAS - are presented in the paper. Spent moulding sands with modified water-glass, burned as well as not burned, present in a form of agglomerates (lumps), were subjected to the reclamation processes. During individual reclamation cycles the reclaimer efficiency and vibrations amplitudes were determined and physicalchemical and strength investigations were performed for the obtained reclaim materials. The obtained reclaim was used as a component of the matrix of moulding sands with water-glass in the Floster S technology, in which the reclaim constituted 100%, 80% and 50% of the sand matrix - respectively.
W artykule przedstawiono wyniki regeneracji zużytej masy formierskiej ze spoiwem nieorganicznym w prototypowym regeneratorze wibracyjnym REGMAS. Procesowi regeneracji poddano zarówno masę zużytą ze szkłem wodnym modyfikowanym przepaloną oraz nieprzepaloną masę zużytą występującą w postaci brył. W trakcie realizacji poszczególnych cykli regeneracji określano wydajność regeneratora oraz amplitudę wibracji, dla których przeprowadzono badania fizykochemiczne oraz wytrzymałościowe otrzymanych regeneratów. Wykonano następujące badania: zawartość pyłów w regeneracie UK , analizę sitową osnowy oraz laserową analizę granulometryczną oddzielonych pyłów, odczyn pH, stratę prażenia oraz zawartość Na2O regeneratu. Uzyskany regenerat użyto jako składnik osnowy mas formierskich ze szkłem wodnym w technologii floster S, w których stanowił odpowiednio 100%, 80% oraz 50% osnowy piaskowej.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 3; 993-996
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Sand Grains Properties on Electrical Properties of Moulding Sand with Inorganic Binder
Autorzy:
Opyd, B.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/381698.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
microwaves
moulding sand
sand grain
water glass
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
mikrofale
masa formierska
osnowa piaskowa
szkło wodne
Opis:
The paper presents the results of basic research on the influence of the properties of sand grains on electrical properties of water glass moulding sands. It shows electrical properties of the main component – sand grains, crucial to the kinetics of moulding sands heating, such as permittivity εr and loss factor tgδ. Measurements were carried out with the use of the perturbation method for silica, chromite and olivine sands of different mineral, chemical composition and particle size distribution, as well as for moulding sands with water glass grade 145. Analysis of the results of measurements of electrical properties shows that all moulding sands are characterized by a similar permittivity εr and loss factor tgδ. It was found that the electrical properties and the quantity and quality of other components may have a decisive influence on the effectiveness and efficiency of the microwave heating of moulding sands with sand grains. In determining the ability to efficiently absorb the microwave radiation for mixtures which moulding sands are, the impact of all components influencing their individual technological parameters should be taken into account.
Źródło:
Archives of Foundry Engineering; 2015, 15, 3; 43-46
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Instrumentation optical fibres for wave transformation, signal processing, sensors, and photonic functional components, manufactured at Białystok University of Technology in Dorosz Fibre Optics Labolatory
Autorzy:
Romaniuk, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/202181.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optical fibres
specialty optical fibres
soft glass optical fibres
nontelecom optical fibres
optical fibre photonics
multicore optical fibres
optical fibre microoptics
optical capillaries
photonic fibres
structural optical fibres
signal processing in optical fibres
Białystok University of Technology
Opis:
Tailored, specialty optical fibres, made of complex glasses, called collectively as a non-telecommunications or instrumentation family, serve for various optical wave transformations for particular functional purposes and optical signal processing, rather than for long distance lossless and dispersionless, undistorted transmission. Research work on these fibres started during the late seventies of the last century in ITME/Warsaw and in Białystok University of Technology at the Faculty of Electrical Engineering. The initiator of this research at Glass Works Białystok [39] and Białystok University of Technology [4] was, then a very young engineer, Jan Dorosz. Over 35 years of development of the technological team, under his skilful management, resulted in a top laboratory which today does research at the cutting edge of the photonics science. The Białystok Optical Fibre Technology Laboratory (OFTL) is now a pearl in the crown of his Alma Mater. The paper opens this special issue of the PAS Bulletin on Technical Sciences, devoted to professor Jan Dorosz, and shows some of the developments in the area of optical fibre photonics, which were carried out at his active laboratory.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 4; 607-618
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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