Relations between structure and mechanical properties of polishing powders based on CeOsub2/sub
Bezdička, Petr; Petřina, Antonín; Večerníková, Eva
2000 - Czech We studied the polishing powders based on CeOsub2/sub and its mechanical properties. Byla studována leštiva na bázi CeOsub2/sub a vztahy mezi strukturou a mechanickými vlastnostmi. Keywords: structure; polishing; Cerianite Available at various institutes of the ASCR Relations between structure and mechanical properties of polishing powders based on CeOsub2/sub

We studied the polishing powders based on CeOsub2/sub and its mechanical properties.

Bezdička, Petr; Petřina, Antonín; Večerníková, Eva
Ústav anorganické chemie, 2000

Material research of the sculptural group of St. John from Matha, St. Felix from Valois and St. Ivan, Charles Bridge, Prague
Svobodová, J.; Hradil, David; Přikryl, R.; Šimek, O.
2000 - Czech Determined mineralogical and chemical composition of the surface layers of sandstone sculptures was interpreted as the result of the weathering processes in the past. The influence of atmospherical pollution and previous restoration and conservation of the stone was discussed. Mineralogicko-chemický průzkum povrchových vrstev pískovcové sochy byl zaměřen na projevy zvětrávání v prostředí městské atmosféry a vedl k diskusi o možných procesech v minulosti i vlivem dřívějších restaurátorských zásahů. Available at various institutes of the ASCR Material research of the sculptural group of St. John from Matha, St. Felix from Valois and St. Ivan, Charles Bridge, Prague

Determined mineralogical and chemical composition of the surface layers of sandstone sculptures was interpreted as the result of the weathering processes in the past. The influence of atmospherical ...

Svobodová, J.; Hradil, David; Přikryl, R.; Šimek, O.
Ústav anorganické chemie, 2000

Laboratory studies of paintings and fine art materials in 2000
Hradil, David; Bakardjieva, Snejana; Bezdička, Petr; Petřina, Antonín; Šubrt, Jan
2000 - Czech When restoring historical paintings and sculptures, some removed fragments have been measured using electron microanalysis and X-ray diffraction methods. Results obtained from this material research were used to identify the original ground and painting layers and to choose the suitable restoration procedure. Vzorky odebrané v rámci restaurátorských zásahů byly analyzovány metodami elektronové mikroanalýzy a RTG-difrakční analýzy. Interpretace výsledků přispěly k identifikaci původních vrstev, procesů následných změn a k volbě postupu restaurování. Available at various institutes of the ASCR Laboratory studies of paintings and fine art materials in 2000

When restoring historical paintings and sculptures, some removed fragments have been measured using electron microanalysis and X-ray diffraction methods. Results obtained from this material research ...

Hradil, David; Bakardjieva, Snejana; Bezdička, Petr; Petřina, Antonín; Šubrt, Jan
Ústav anorganické chemie, 2000

Comparative study of Synhydrid and its derivatives from the point of view of their reactivities and selectivities
Černý, Zbyněk; Kříž, Otomar; Macháček, Jiří; Čásenský, Bohuslav
2000 - Czech Analytical study of commercial product Synhydrid considering impurities affecting reduction properties has been made. The reduction study of this complex hydride has been aimed to such reaction of model compounds where is no unambiguous course (reduction of conjugated system -C=C-C=O), or reaction yield is not quantitative even in high excess of hydride (alkyl and arylhalogenides). Available at various institutes of the ASCR Comparative study of Synhydrid and its derivatives from the point of view of their reactivities and selectivities

Analytical study of commercial product Synhydrid considering impurities affecting reduction properties has been made. The reduction study of this complex hydride has been aimed to such reaction of ...

Černý, Zbyněk; Kříž, Otomar; Macháček, Jiří; Čásenský, Bohuslav
Ústav anorganické chemie, 2000

Laboratory research report. The Saint - canonical master (polychromed wooden sculpture) in the church of St. Nicolas in Bílovec
Hradilová, J.; Hradil, David
2000 - Czech Pre-restoration materials research of the painting is based on microscopic (both optical and electron) analyses of grounds and painting layers in the cross-sections of fragments with the aim to identify pigments and to describe the stratigraphy of re-ts involving to choose the suitable restoration procedure. Other methods (e.g. microchemical and histochemical tests) are used for identification of binding media. Materiálový průzkum malby v rámci restaurátorského zásahu využívá zejména metod optické a elektronové mikroskopie a mikroanalýzy fragmentárních příčných řezů barevných vrstev k identifikaci pigmentů a popisu stratigrafie přemaleb, což přispívá ke správné volbě restaurátorského postupu. Další, zejména mikrochemické a histochemické metody jsou použity k identifikaci pojiv. Keywords: materials research; restoration; painting layers stratigraphy Available at various institutes of the ASCR Laboratory research report. The Saint - canonical master (polychromed wooden sculpture) in the church of St. Nicolas in Bílovec

Pre-restoration materials research of the painting is based on microscopic (both optical and electron) analyses of grounds and painting layers in the cross-sections of fragments with the aim to ...

Hradilová, J.; Hradil, David
Ústav anorganické chemie, 2000

Laboratory studies of the fine art works and materials in 1999
Hradil, David; Bezdička, Petr; Langrová, A.; Petřina, Antonín
2000 - Czech When restoring historical paintings and sculptures, some removed fragments have been measured using electron microanalysis and X-ray diffraction methods. Results obtained from this material research were used to identify the original ground and painting layers ant to choose the suitable restoration procedure. Vzorky odebrané v rámci restaurátorských zásahů byly analyzovány metodami elektronové mikroanalýzy a RTG-difrakční analýzy. Interpretace výsledků přispěly k identifikaci původních vrstev, procesů následných změn a k volbě postupu restaurování. Available at various institutes of the ASCR Laboratory studies of the fine art works and materials in 1999

When restoring historical paintings and sculptures, some removed fragments have been measured using electron microanalysis and X-ray diffraction methods. Results obtained from this material research ...

Hradil, David; Bezdička, Petr; Langrová, A.; Petřina, Antonín
Ústav anorganické chemie, 2000

Laboratory studies of sculpture works and materials in 2000
Hradil, David; Bakardjieva, Snejana; Bezdička, Petr; Petřina, Antonín; Šubrt, Jan
2000 - Czech When restoring historical paintings and sculptures, some removed fragments have been measured using electron microanalysis and X-ray diffraction methods. Results obtained from this material research were used to identify the original ground and painting layers and to choose the suitable restoration procedure. Vzorky odebrané v rámci restaurátorských zásahů byly analyzovány metodami elektronové mikroanalýzy a RTG-difrakční analýzy. Interpretace výsledků přispěly k identifikaci původních vrstev, procesů následných změn a k volbě postupu restaurování. Available at various institutes of the ASCR Laboratory studies of sculpture works and materials in 2000

When restoring historical paintings and sculptures, some removed fragments have been measured using electron microanalysis and X-ray diffraction methods. Results obtained from this material research ...

Hradil, David; Bakardjieva, Snejana; Bezdička, Petr; Petřina, Antonín; Šubrt, Jan
Ústav anorganické chemie, 2000

Research and development of the process for production of extra pure ammonium aluminium sulphate I
Rodová, A.; Wildnerová, M.; Janoš, P.; Bezucha, P.; Domský, V.; Hostomský, Jiří; Hostomská, Věra; Velická, Jana
2000 - Czech Research and development of the process for production of extra pure ammonium aluminium sulphate, where the concentration of contaminants does not exceed 0.3 ppm for Ca, Co, Cr, Fe, Mg, Mn, Pb, Si, Ti, Zn, 2.0 ppm for Ga, and Na and 3.0 ppm for K. Evaluation of suitable raw materials; analytical methods for determination of contaminant concentrations; determination of phase equilibria in the system sulphuric acid ů ammonium sulphate ů aluminium sulphate ů water. Výzkum a vývoj technologie výroby vysoce čistého krystalického síranu amonno-hlinitého, kde koncentrace kontaminantů Ca, Co, Cr, Fe, Mg, Mn, Pb, Si, Ti, Zn nepřevyšuje 0,3 ppm, Ga a Na 2,0 ppm a K 3,0 ppm. Výběr vhodných surovin; analytické metody pro stanovení kontaminantů; stanovení fázových rovnováh v soustavě kyselina sírová ů síran amonný ů síran hlinitý ů voda. Keywords: ammonium aluminium sulphate; analysis of contaminants; phase equilibria Available at various institutes of the ASCR Research and development of the process for production of extra pure ammonium aluminium sulphate I

Research and development of the process for production of extra pure ammonium aluminium sulphate, where the concentration of contaminants does not exceed 0.3 ppm for Ca, Co, Cr, Fe, Mg, Mn, Pb, Si, ...

Rodová, A.; Wildnerová, M.; Janoš, P.; Bezucha, P.; Domský, V.; Hostomský, Jiří; Hostomská, Věra; Velická, Jana
Ústav anorganické chemie, 2000

Demercurization of Solutionns Arising during Production of Sodium Antraguinone
Špalek, Otomar
1998 - Czech Keywords: výroba; sodík Available at various institutes of the ASCR Demercurization of Solutionns Arising during Production of Sodium Antraguinone

Špalek, Otomar
Ústav anorganické chemie, 1998

Crystallization of Oxalic Acid - Evaluation of the Present State of the Crystallization Unit in Moravian Chemical Works, Ostrava, and Suggestions for a Better Process Efficiency
Hostomský, Jiří
1998 - Czech Available at various institutes of the ASCR Crystallization of Oxalic Acid - Evaluation of the Present State of the Crystallization Unit in Moravian Chemical Works, Ostrava, and Suggestions for a Better Process Efficiency

Hostomský, Jiří
Ústav anorganické chemie, 1998