Dielectric relaxation in Sr(Co1/3Nb2/3)O3 compound – a candidate for microwave applications
Synthesis ferroelectric compounds Sr(B1/3Nb2/3)O3 by solid state reaction technique. Consideration of the correlation between the dielectric response and transport behavior. Emprovement dielectric material properties. Motion energy storage devices.
Подобные документы
Two possible approaches to the phenothiazine ring that, to the authors’ knowledge, have not been explored yet. The attack of a nitrene onto a diary sulde, the "nitrogen equivalent" of the thionation reaction. The diene character of ve-membered rings.
??????? ??????, добавлен 05.03.2013Plastic additives as a wide range of chemicals used by resin manufacturers, compounds and manufacturers to improve the properties, processing and characteristics of polymers. Features of their chemical composition and conditions of effective use.
??????, добавлен 10.03.2019Purines Fused to Six-Membered Heterocycles. Pyrido-, pyridazino-, pyrimido-, pyrazino-, oxazino-, thiazino-, triazino-purines. Purines Fused to Seven- and Eight-Membered Heterocycles. Oxdiazocino- and Thiadiazocino-Purines Efforts to obtain compounds.
??????, добавлен 05.03.2013Purines fused with five-membered heterocycles: pyrrolo-, oxazolo-, thiazolo-, imidazo-, pyrazolo-, triazolo- and tetrazolo-purines. Purines annulated with five-membered rings. Compounds with a greater selective efficacy without the unwanted side-effects.
??????, добавлен 05.03.2013The features of production of Fe:MgAl2O4 nanopowders by evaporation of targets made from a oxide mixture by repetitively pulsed laser radiation. Differences in the phase compositions of the solid powder substances. A rate of the cooling the ytterbium.
??????, добавлен 18.09.2018History of the nucleophilic substitution of hydrogen in aromatic compounds, obtaining picric acid. Survey of SNH Substitution. Heterocyclizations Based on SNH Reactions. Intramolecular One-Step SNH Cyclizations; cascade Sequences Based on SNH Reactions.
??????? ??????, добавлен 05.03.2013The development of selective oxidation of simply accessible dihydroxy-dypropoxycalix[4]arene to nitrocalixmonoquinone by mixture of 75 % nitric acid and glacial acetic acid. Synthone for design of optical sensors and redox-sensitive bio-active compounds.
??????, добавлен 11.02.2014Polymers, inorganic and organic, amorphous and crystalline substances consisting of "Monomeric units" connected in a long macromolecule chemical bonds. Molecular modeling of melting process of solid polymers in the transition and plastic deformation.
??????, добавлен 23.02.2016The technology for the synthesis of two coumarin-chalcone hybrids by means of Kleisen-Schmidt condensation between 3-acetylcoumarin with benzaldehyde and 4-chlorobenzaldehyde, respectively. Method of identification and control of a chemical process.
??????, добавлен 15.01.2021Chemical properties of organic compounds derived from ammonia. The mechanism of substitution of hydrogen for hydrocarbon radicals within molecules. Classification of the most common amines. Familiarization with the formula for the secondary amine.
???????????, добавлен 06.12.2016Rubidium as a chemical element and a soft, silvery-white metallic element of the alkali metal group. Characteristics, history, occurrence rubidium. Isotopes, uses and applications. Compounds, rubidium chloride. Precautions and biological effects.
???????, добавлен 13.11.2009Chemical properties of sodium. Sodium compounds are important to the chemical, glass, metal, paper, petroleum, soap, and textile industries. History of appearance of sodium. The serum sodium and urine sodium.
???????, добавлен 09.03.2010Benzisothiazolium Salts. Heterocyclic Annulated Isothiazolium Salts. Structure. X-ray Diffraction. Molecular Spectra. Analytical methods. Reactivity, general survey. Oxidation to Sultims and Sultams. Ring Transformation in Other Heterocyclic Compounds.
??????, добавлен 05.03.2013- 89. A synthetic approach of d-glucose derivatives: spectral characterization and antimicrobial studies
Synthesis of new series of derivatives of methyl 4, 6-o-(4-methoxybenzylidene)-b-D-glucopyranoside direct acylation with a wide range of acylating agents. Spectral and elemental analysis data of antibacterial action of the synthesized compounds.
??????, добавлен 23.02.2016 Synthesis the new ternary indide Ca16Ni173.14In62.61 from the elements by arc-melting and determination its crystal structure by means of X-ray single crystal diffraction. Foundation the crystals of similar shape in an as-cast SrNi9In2 sample.
??????, добавлен 23.02.2017Influence of increasing the temperature of thermochemical activation of up to 750 °C and increasing the dosage of potassium hydroxide to 2.1 g/g of activated carbon synthesis of hydrolytic lignin on the formation of adsorption properties of the AC.
??????, добавлен 30.07.2017Carbon as the element essential to all of life, and hence the basis for a vast field of study. Electronegativity value of fluorine. Plastic polystyrene - important product of the hydrocarbon family. Chemical properties of carboxylic acids and esters.
??????, добавлен 15.09.2014The one-step procedure of simultaneous preparation of polyacrylonitrile-based carbon support and Fe-Pd bimetallic nanoparticles. The effect of synthesis conditions on the metal-carbon nanocomposite structural characteristics. The crystallite size.
??????, добавлен 27.08.2020Magnesium as a chemical element and a silvery-white, light-weight metal. Notable characteristics, applications. As the metal. Incendiary use, in magnesium compounds. History, sources, ores, sea water, electrolysis. Biological role, isotopes, precautions.
???????, добавлен 13.11.2009Alkylation of potassium 9-R1-10-R2-3-R-2-oxo-2?-[1,2,4]triazino[2,3-?]quinazolin-6-thiolates by N-cycloalkyl-(cycloalkylaryl-)-2-chloracetamides. Analizes of indicators of the antiviral activity of compounds 3.2 and 3.14 against influenza type A H3N2.
??????, добавлен 29.01.2016Thiophene derivatives, cyclopropenethiones, dithiynes, carbon disulfide in the synthesis of thienothiophenes and their analogues. Reactivity and chemical transformations. Molecular structures and physical properties fields of application thienothiophenes.
????????? ??????, добавлен 05.03.2013Isomeric aminobenzoic acid – an important chemical product of organic synthesis used in the production of synthetic dyes, medicinal and aromatic substances, wines, pesticides. Investigation the reaction of the oxidization of 2- and 3-aminotoluenes.
??????, добавлен 22.03.2016- 98. Ir spectroscopy and tg analysis investigations of functionalized go and go-containing divinyl rubber
Analysis of the results of a study of graphene oxide and divinely rubber containing graphene oxide, functioning-RO (Oh)2 slot groups as a result of a kill-chlorophosphorylation reaction under the action of PCl3 in the presence of oxygen. Synthesis of GO.
??????, добавлен 10.05.2018 A cross-section of analytical techniques used for proteins and peptides. The Lowry Method for Protein Quantitation. Ultrafast Protein Determinations Using Microwave Enhancement. Flow Cytometric Quantitation of Cellular Proteins. The Nitric Acid Method.
?????, добавлен 09.04.2013Analysis of the method of synthesis of new materials with carboxylic acid groups, based on the template method, was developed. The efficiency of this methodology was demonstrated by powder x-ray diffraction, infrared spectroscopy and thermal analysis.
??????, добавлен 02.04.2014