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1
100%
Molecular and Quantum Acoustics
2008 Vol. 29 65-72
EN Nitrogen dioxide optical fibre sensor based on nanoporous glass probe was obtained. As a sensor probe glasses from the Na2O-B2O3-SiO2 system modified with TiO2 and ZrO2 and Al2O3 have been made. Porous glasses based on silica posses very good thermal and chemical durability, they are also transparen[...]
2
80%
Optica Applicata
EN Porous glass is a well suitable system for the exploration of new characterization techniques due to adjustable texture properties and the possibility to "tailor-made" the surface chemistry. In this study porous glass beads were utilized as model system for the evaluation of inverse gas chromatograp[...]
3
80%
Optica Applicata
2010 Vol. 40, nr 2 311--321
EN The research examines the interaction of dye molecules with their dimers (H aggregates) and the more complex formations (J aggregates) developing in porous glass. The use of porous glass when dealing with dye aggregation has resulted in obtaining photoluminescence dimers of the J aggregating dye, t[...]
4
80%
Optica Applicata
EN CdS nanoclusters were formed in the porous glass matrix by sequential chemical deposition from liquid-vapor phase and their chemical content was investigated. The room temperature photoluminescence spectra of specimens excited with a 235 nm wavelength had typical narrow peaks at 400 nm. The peaks ca[...]
5
80%
Optica Applicata
EN The dielectric properties of sodium nitrite embedded into porous glasses with the average pore diameter of 45 nm and 320 nm have been studied. The samples were obtained by immersion of empty porous glass into the melted NaNO2 and then they stayed there for 24 and 8 hours. The sequence of phase trans[...]
6
80%
Wiertnictwo, Nafta, Gaz
2004 R. 21/1 239-245
PL Substancje ropopochodne ze względu na swoje właściwości są bardzo szkodliwe dla środowiska, zwłaszcza gruntowo-wodnego. W przypadku wystąpienia awarii połączonej z niekontrolowanym wyciekiem do środowiska, część węglowodorów udaje się usunąć, ale zdecydowana większość infiltruje do gruntu, a następn[...]
EN Owing to their properties, oil products are very noxious for the environment, soil and water in particular. In the case of a break-down accompanied by an uncontrollable seepage to the environment, part of hydrocarbons can by removed, but most of them infiltrate the soil, ground- and surface waters. [...]
7
80%
Optica Applicata
EN Tests on glass texture were made in order to establish the size of porous space in modified glasses Al2O3 from the system Na2O-B2O3-SiO2 after extraction of dissolved boron phase during chemical treatment. A difference was observed in the size and volume of mezo- and micropores in 0.6% and 0.3% Al2O[...]
8
80%
Optica Applicata
EN The properties of sodium nitrite introduced in porous glasses have been investigated. SEM graphs indicate existence of sodium nitrite inside glass pores. It has been shown that FTIR and Raman spectra are similar for bulk sodium nitrite and sodium nitrite embedded into porous glass. The nature of FTI[...]
9
70%
Optica Applicata
2010 Vol. 40, nr 2 333--340
EN The properties of porous glasses are determined by optical spectroscopy and high-resolution microscopy at different stages of immunoglobulin immobilization and after immune reaction. The influence of duration and temperature of drying between surface activation and silanization is studied. The quan[...]
10
70%
Nukleonika
EN A thermal stability of three materials: undoped reference Vycor glass, glass filled with ROT-305 red dye, and silver nanoparticles was investigated by positron annihilation lifetime spectroscopy (PALS) in a broad temperature range (from 93 to 473 K). The attempt of pore size calculations from the or[...]
11
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Optica Applicata
2019 Vol. 49, nr 3 427--436
EN Sensitivity of dyes on the base of 4-valence tin complexes to the composition of environment was researched. It has been found out that such dyes by themselves keep stability and inactivity to the composition of atmosphere. However, the photoluminescence properties of the nanostructures on their bas[...]
12
61%
Optica Applicata
2010 Vol. 40, nr 2 305--309
EN The dielectric response of crystalline NH4H2PO4 and KH2PO4–SiO2 and NH4H2PO4–SiO2 composites prepared by embedding salts into porous glasses with the average pore diameter of 320 nm has been studied at the temperature range of 85–300 K. An increase of the structure phase transition temperatures in e[...]
13
61%
Optica Applicata
EN A summarizing of the results of complex study of pore morphology of porous glasses has been carried out taking into consideration the dissolved secondary silica state in the systems alkali borosilicate glass - a leaching solution. An influence of the composition and phase structure of an initial gla[...]
14
61%
Optica Applicata
EN Porous glasses are widely used in microelectronics as inter-metal dielectrics with low dielectric constant (so-called low-k dielectrics). At the same time copper is used as a metal because of its low resistivity. Combination of Cu and low-k requires a barrier to prevent Cu diffusion into a low-k die[...]
15
61%
Optica Applicata
EN We have presented the results of our investigation concerning adsorption in porous glass (PG). Chemical adsorption of gas molecules is due to indicator substances which were deposited from solution on the surface of pores. Physical adsorption of organic molecules is due to OH-adsorption centres whic[...]
16
61%
Optica Applicata
EN The g-irradiation effect on the photoluminescence of various types of porous silica glasses and on its change during a half-year storage has been studied. It has been revealed that the photoluminescence intensity of glasses with fine matrix and almost complete absence of silica gel does not change w[...]
17
61%
Optica Applicata
EN The selection of silica porous glass being the most suitable material for manufacturing of the actuated scleral part of the eye prosthesis has been justified. The model explaining the photoluminescence intensity oscillations of porous glass during the effusion of the antibiotic out of the glass has [...]
18
61%
Optica Applicata
EN The paper presents a method for the size estimation of scattering structures in porous glasses, being based on measurements of both the sample reflection and transmission. Analysis of the transmission spectra allows us to estimate the contribution of absorption and scattering to light extinction and[...]
19
51%
Szkło i Ceramika
PL W pracy przedstawiono metody wprowadzania wybranych materiałów ferroelektrycznych (TGS, NaN02 oraz KN03) w matryce szkieł porowatych o różnych średnich rozmiarach porów. Na podstawie pomiarów właściwości elektrycznych (piroelektrycznych i przenikalności elektrycznej) oraz termicznych (rozszerzalnośc[...]
EN The methods of introducing of selected ferreoelectrics materials (TGS, NaN02 and KN03) into porous glasses matrix with different pores size were presented. On the basic on measurements of electrical (pyroelectric, dielectric permittivity) and thermal (thermal expansion, specific heat) properties it [...]
20
51%
Chemia i Inżynieria Ekologiczna
PL Opisano metodę sporządzania gazowych mieszanin wzorcowych etenu, wykorzystującą termiczny rozkład związków powierzchniowych. Celem pracy było porównanie wyników uzyskanych dla rożnych porowatych materiałów (żel krzemionkowy, szkło porowate) użytych w procesie modyfikacji. Wyznaczono też zależności m[...]
EN The preparation of gas standard mixtures of ethene, based on thermal decomposition of modified bed surfaces has been described. The aim of this research was to compare of results obtained for different porous materials (silica gel; porous glass) using for modification. Relations between amount of et[...]
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