Browsing CMV - laboratoř anorganických materiálů by Issue Date
Now showing items 1-20 of 30
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Determination of Critical Parameters of Drug Substance Influencing Dissolution: A Case Study
(Hindawi Publishing Corporation, 2014-09-15)The purpose of this study was to specify critical parameters (physicochemical characteristics) of drug substance that can affect dissolution profile/dissolution rate of the final drug product manufactured by validated ... -
Elemental composition of fruits from different Black elder (Sambucus nigra L.) cultivars grown in the Czech Republic
(Polish Society for Magnesium Research, 2015-02-09)Black elder is a deciduous shrub widely used in medicine, pharmacy and food industry. This study presents a comparison of the elemental composition of fruits (berries) from the Black elder (Sambucus nigra L.) cultivars ... -
The field of solid solutions in ternary system of synthetic apatite-type alkaline earth element-yttrium-silicate oxybritholite phases of the composition: AEE(delta)Y(10-delta)[SiO4](6)O3-0.5 delta, where AEE=Ca, Sr and Ba
(Elsevier Ltd, 2016-01-08)This contribution deals with the synthesis, properties and investigation of the field of solid solutions formed between the three end-members of apatite-type alkaline earth element-yttrium-silicate oxybritholites with the ... -
The formation of feldspar strontian (SrAl2Si2O8) via ceramic route: Reaction mechanism, kinetics and thermodynamics of the process
(Elsevier, 2016-05-15)The reaction mechanism, the equilibrium composition, the temperature range of stability of formed intermediates as well as the kinetics and thermodynamics of activated state during the formation of monoclinic strontium-a ... -
Effect of Na3PO4 on the Hydration Process of Alkali-Activated Blast Furnace Slag
(MDPI, 2016-05-20)In recent years, the utilization of different non-traditional cements and composites has been increasing. Alkali-activated cementitious materials, especially those based on the alkali activation of blast furnace slag, have ... -
Some Issues of Shrinkage-Reducing Admixtures Application in Alkali-Activated Slag Systems
(MDPI, 2016-06-10)Significant drying shrinkage is one of the main limitations for the wider utilization of alkali-activated slag (AAS). Few previous works revealed that it is possible to reduce AAS drying shrinkage by the use of shrinkage-reducing ... -
The Characterization of Fixation of Ba, Pb, and Cu in Alkali-Activated Fly Ash/Blast Furnace Slag Matrix
(MDPI, 2016-06-30)The fixation of heavy metals (Ba, Cu, Pb) in an alkali-activated matrix was investigated. The matrix consisted of fly ash and blast furnace slag (BFS). The mixture of NaOH and Na-silicate was used as alkaline activator. ... -
Tobermorite synthesis under hydrothermal conditions
(Elsevier, 2016-08-03)The influence of different hydrothermal conditions and starting materials on a preparation of tobermorite was examined. Tobermorite is a mineral, which, thanks to its composition and properties, is an important phase in ... -
Inhibition of Hydrogen Evolution in Aluminium-phosphate Refractory Binders
(Elsevier, 2016-08-03)The study deals with the possibilities of inhibition of the reaction of aluminium-phosphate binders with iron scale, which is contained in bauxite. This material is mixed with phosphate binders to form refractories. The ... -
The ash from fluidized bed combustion as a donor of sulfates to the Portland clinker
(Elsevier, 2016-08-03)The paper deals with possibilities of using solid residues from fluidized bed combustion of coal, bed and filter ash in the production of composite Portland cements. The ash from fluidized bed combustion contains a high ... -
The determination of the influence of pH value of curing conditions on Portland cement hydration
(Elsevier, 2016-09-01)Water composition during cement hydration can be changed due to migration of ions from the cement matrix to the solution. The storage of various materials together can lead to transfer of various ions and distortion of ... -
Introduction of novel kinetic approach to calculation of activation energy and its application to the sinter-crystallization of strontian feldspar
(Elsevier, 2016-11-05)The kinetics, the mechanism and the thermodynamics of activated state of formation of primary strontian feldspar via sinter-crystallization of non-equilibrium melt during the thermal treatment of ceramic body was investigated ... -
Effect of Ultrasonication Dispersion Technique on Sintering Properties of CNT Reinforced Al-Zn-Mg-Cu Powder
(Polish Academy of Sciences, 2017-01-01)CNT has been researched significantly due to its properties especially mechanical and conductivity properties. Due to strong affinity between particles, dispersion has been remained a problem for its applications. ... -
Influence of Barium Oxide Additions on Portland Clinker
(Institute of Rock Structure and Mechanics of The Czech Academy of Sciences, v. v. i., 2017-01-02)Nowadays, nuclear power plants are widespread around the world and research is of great interest. Together with nuclear research, shielding of different types of radiation is an important current topic of research aiming ... -
Fracture properties of concrete specimens made from alkali activated binders.
(IOP Publishing, 2017-09-15)The aim of this paper is to quantify crack initiation and other fracture properties – effective fracture toughness and specific fracture energy – of two types of concrete with an alkali activated binder. The beam specimens ... -
Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length
(MDPI, 2017-10-23)The present study is focused on the synthesis and investigation of the physicochemical and biological properties of silver nanoparticles stabilized with a series of cationic gemini surfactants having a polymethylene spacer ... -
Influence of Pb Dosage on Immobilization Characteristics of Different Types of Alkali-Activated Mixtures and Mortars
(Hindawi, 2018-01-11)Alkali-activated matrices are suitable materials for the immobilization of hazardous materials such as heavy metals.. is paper is focused on the comparison of immobilization characteristics of various inorganic composite ... -
The influence of starting materials´ solubility on tobermorite structure formation under the hydrothermal conditions
(IOP Publishing, 2018-07-12)Overall, the tobermorite mineral crystallises under the hydrothermal conditions from the CaO-SiO2-H2O system. The system of calcium hydrosilicates species is extremely complex and many factors play an important role. The ... -
Release of ammonia from conventional power plant fly ash after the introduction of SNCR process
(IOP Publishing, 2018-07-12)The paper deals with a study of various factors affecting the release of ammonia from conventional power plant fly ash after introduction of SNCR (Selective non-catalytic reduction). SNCR is a method of flue gas denitrification ... -
Determination accuracy of analysis refractory materials by x-ray fluorescence
(IOP Publishing, 2018-07-12)This work was focused on the finding of the right way how to analyze refractory materials by X-ray fluorescence. This method can provide accurate results which can be easily repeated, what is the reason why this method is ...