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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Химия
  • 91. Innovative chemmotological thought as an integrated System of knowledge

    This article offers insight into history, development and modern state of Chemmotology science. The main problems and tasks of the Science are discussed. The bases of Chemmotological scientific and pedagogical school of the National Aviation University.

    статья (704,4 K)
  • 92. Interesting facts about oxygen

    Consideration of oxygen as a basic element of atmosphere of Earth, his constituents, oxides, behavior of oxygen as a result of combustion, use of oxygen in a fuel, way of his receipt, production and uses of oxygen in different industries of industry.

    презентация (397,4 K)
  • 93. Introduction to analytical chemistry

    Concerning the separation, identification, and determination of the relative amounts of the components making up a sample. The relationship between analytical chemistry and the other sciences. Classification of modern analytical methods in chemistry.

    презентация (2,9 M)
  • 94. Investigation of the crystal structures of new cyano-bridged compounds with KLaMo(CN)8•9H2O structure type

    The X-ray diffraction study of the isotypic structures of I and II reveals that the crystal structure consists of three structural units. The coordination polyhedron of the lanthanide atom. Atomic coordinates and equivalent displacement parameters.

    статья (362,8 K)
  • 95. Ion exchange properties of irradiated and chemically modified clinoptilolite regarding to Cs+ and Sr2+

    The study of ion-exchange sorption of CS+ and sr2+ on clinoptilolite in original, modified e- and G-irradiation, decationated with hydrochloric acid, and the cation-contained form, the definition of the coefficient of sorption and distribution of KD, KS.

    статья (212,3 K)
  • 96. Ionexchanged film materials from oligoepichlorohydrine epoxide and piperazine

    Film materials with ion-exchange properties based on polymer obtained by condensation of oligoepichlorohydrin epoxide and piperazine with chemical modification. Compounds that have different thermodynamic affinities with the polymer and with each other.

    статья (363,6 K)
  • 97. Ionic liquids for promising ion-conducting polymer materials of electrochemical devices

    Synthesis methods development of ionic liquids based on quaternary ammonium salts, their application as components of the polymeric electrolytes for electrochemical devices. Рroperties of liquids depending on the structure of cationic and anionic parts.

    статья (544,1 K)
  • 98. Ionically and covalently cross-linked hydrogel particles based on chitosan and polyethylene glycol

    Scheme of oligoperoxide structures at different pH values. Ionically and covalently cross-linked hydrogel particles based on chitosan, polyethylene glycol. The presence of peroxide groups in the oligoperoxides. The preparation of submicron reagents.

    статья (813,4 K)
  • 99. Isolation and characterization acidithiobacill us ferrooxidans and a cidithiobacill us ferrivorans from the arsenopyrite flotation concentrate in Kazakhstan

    Identification and characterization of phenotypic characteristics. Phylogenetic analysis of 16S rRNA genes, results of general chemical analysis of Bestobe deposits. Effect of different arsenic concentrations on the oxidative capacity of isolated strains

    статья (838,3 K)
  • 100. Iммобілізація ліполітичних і протеолітичних ферментів та сульфамідних лікарських препаратів на полімерних носіях

    Вивчення співполімеризації синтезованих біологічно активних сульфамідних мономерів i терполімерів. Синтез фермент-полімерних комплексів на основі ліполактину. Створення лікарських препаратів поліфункціональної дії. Утворення тривимірної просторової сітки.

    автореферат (37,8 K)
  • 101. KDP crystals modified with organic molecules: luminophore embedding criteration

    Experimental study results on the conditions of KDP single crystal growing doped by organic luminophors have been presented. Shows a possible coherent conjugation scheme for crystal-chemical parameters of KDP lattice with some organic luminophors.

    статья (203,3 K)
  • 102. Kinetic regularities of the early stages of sol-gel process in tetraethoxysilane-based systems

    Research kinetic characteristics of the initial stages of the processes of acid hydrolysis and condensation in the sol-gel systems tetraethoxysilane, ethanol-water by gas chromatography. Using quantum-chemical calculations hydrolysis parameters.

    статья (351,1 K)
  • 103. Mathematical model analysis of graphene oxide thermal development

    Study of the changes in the crystal structure of the material during thermal treatment and the effects of these changes on the properties of the material. Possibility of prediction of the changes of graphene oxide material during thermal processing.

    статья (19,4 K)
  • 104. Mecamylamine modulates epileptiform discharges in low-Mg2+ model of epilepsy

    Mecamylamine - a nonselective antagonist of nicotinic acetylcholine receptors that was developed as an antihypertensive medication. Application of mecamylamine - one of the processes that decreased inter-event intervals between continuous discharges.

    статья (74,1 K)
  • 105. Metabolism of lipoids

    Structure, a composition, a biological role, synthesis and catabolism of phospholipids. Conversion of Squalene to Cholesterol. Determination of interdependence of the deficiency of hydrolytic enzymes and lysosoms support sphingolipidosis development.

    презентация (132,6 K)
  • 106. Methods for the determination of ammonium ions

    Control of the stability of calibration characteristic Algorithm of operational control of the error of determination of ammonium ions in drinking water. Photocolorimetric determination of ammonium ion content. Precautions when performing the analysis.

    реферат (39,6 K)
  • 107. MgH2 insights for hydrogen storage and catalysis: preparation, characterization and mechanism

    The preparation methods, characterization methods and reaction basis of various catalysts modified by MgH2. Analysis of the development trend of various catalysts in the future and the application prospects. The most promising hydrogen storage media.

    статья (132,9 K)
  • 108. Micellization and adsolubilization of amphiphilic invertible polyesters

    Using measurements of surface tension, solubilization, and fluorescence spectroscopy, the detection of polyesters based on aliphatic dicarboxylic acids and PEG-1000 to form monomolecular micelles in aqueous solutions at the concentrations of 10-7-10-4 %.

    статья (231,4 K)
  • 109. Microencapsulation of camphor in calcium alginate for using in fabric finishing as fragrance and antibacterial finishing

    Study of antibacterial properties of tissue obtained by ionotropic gelation of sodium alginate. Calculation of the diameter of microcapsules using the software Image J. Gas chromatography of the surface of tissue, finished with microencapsulated camphor.

    статья (3,0 M)
  • 110. Microwave-assisted preparation of sodium-silicate solutions from perlite

    Systematic studies on the preparation of sodium silicate solutions of different compositions via the hydrothermal microwave treatment of perlite with an NaOH solution. The effect of various factors on the degree of SiO2 recovery and the reaction rate.

    статья (143,7 K)
  • 111. Modeling of the Mechanism of Phase Transitions in ZrO2 with Small Additions of In2O3 at High Temperatures in a Vacuum

    Study crystallographic sequence of the phase transition in zirconium dioxide at heated. The transformation of monoclinic phase in tetragonal modification. The appearance of new anion vacancies, which form at evaporation of the oxygen from the lattice.

    статья (458,2 K)
  • 112. Modification of aluminum alloy 1933 by the high-current electron beam irradiation

    Development of a thermal model describing the beam-metal, the features of the hyperbolic relaxation of the equation of heat transfer. Characterization of failure mechanisms for irradiated and non-irradiated sample, the changes in their structure and chemi

    статья (466,4 K)
  • 113. Mossbauer study of yttrium iron garnet epitaxial films magnetic microstructure

    Magnetic microstructure of near-surface layer ataxin film iron-trog the grenade orientation. Dagoniat matrix nuclear Hamiltonian mixed magnetic dipole and electric quadrupole interactions. The orientation of the magnetic moments of cationic sublattices.

    статья (718,3 K)
  • 114. MP2 та DFT дослідження внутрішньо-молекулярної динаміки 2-піридин-2-іл-1н-бензімідазолу

    Результати DFT і MP2 теоретичних досліджень внутрішньо-молекулярної динаміки 2-піридин-2-іл-1H-бензімідазолу. Одержання структурних параметрів для конформерів 2-піридин-2-іл-1H-бензоімідазолу. Значення внутрішніх бар’єрів обертання. Хімічні зсуви ядер.

    статья (276,1 K)
  • 115. Multiwalled carbon nanotubes modified with biocompatible compounds

    Oxidized with solution of hydrogen peroxide multiwalled carbon nanotubes (MWCNTs) were modified with 2-hydroxyethylmethacrylate (HEMA) or chitosan (CTS). Morphology and surface properties of the pristine and modified MWCNTs have been investigated.

    статья (1,4 M)
  • 116. N-2-этилгексил-N’-фенил-п-фенилендиамин в качестве ингибитора радикально-цепного окисления этилбензола

    Изучение эффективности антиокислительного действия антиоксиданта N-2-этилгексил-N’-фенил-п-фенилендиамина (8ПФДА) на примере модельной реакции инициированного окисления этилбензола. Кинетика реакции окисления в присутствии ингибирующих добавок 8ПФДА.

    статья (104,3 K)
  • 117. N-арилсульфоніл-n-хінонмоно- та дііміни зі стерично утрудненим атомом нітрогену

    Дослідження реакційної здатності N-арилсульфоніл–n-хінонімінів. Синтез, реакції та пошук шляхів практичного використання N-заміщених -n-хінонімінів та продуктів їх реакцій. Дослідження стеричного напруженого зв'язку С= N в заміщених хінонімінах.

    автореферат (43,0 K)
  • 118. N-ацилирование органических соединений

    Ацилирование - это введение ацильной группы (ацила) RCO в молекулу органического соединения путем замещения атома водорода. Механизм замещения. Ацилирование по Фриделю-Крафтсу. Образование донорно-акцепторного комплекса из ацилгалогенида и кислоты Льюиса.

    реферат (725,2 K)
  • 119. N-гетарил-2,2-дихлорацетамидины

    Особенности получения новых функциональных производных N-гетарил-2,2-дихлорацетамидинов на основе легкодоступных N-(1-изотиоцианато-2,2,2-трихлорэтил)амидов карбоновых кислот. Анализ строения полученных соединений с помощью спектральных исследований.

    статья (697,5 K)
  • 120. N-фенетил-2-гидрокси-4-оксо-4Н-пиридо[1,2-а] пиримидин-3-карбоксамиды как возможные противовирусные агенты

    Скрининг в качестве потенциальных противовирусных агентов взаимодействия этиловых эфиров 2-гидрокси-4-оксо-4Н-пиридо[1,2-а]пиримидин-3-карбоновых кислот с 2-арилэтиламинами в кипящем этиловом спирте. Синтез группы соответствующих фенетил-карбоксамидов.

    статья (368,6 K)

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