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сколько стоит заказать работу? коллекция "otherreferats"
Главная Коллекция "Otherreferats" Химия
  • 151. Flow Control in Oil/Gas Wells and Pipelines

    Introduction to flow control. Multi-phase flow with emphasis on slug flow. Stabilization of flow in Oil/Gas wells and pipelines. Trends and Facts in Oil and Gas Production. Callenges for Deep Water Developments. Slug reduction/elimination techniques.

    доклад (2,7 M)
  • 152. Fluorine-containing Heterocycles

    Applications heterocyclic compounds; approaches to synthesis. Familiarization with effective conversion of organic compounds into valuable fluorinated products. The use of fluorinated triazoles for the protection of metals and alloys from corrosion.

    научная работа (456,6 K)
  • 153. Functional analysis of experimental data in the field of modern researches of neutral macrocyclic antimycotic filipin

    Biological, physical and chemical properties of macrocyclic compounds based on the researches of membrane activity. Finding of the certain concentration of filipin for increase of conductivity, definition of selectivity and single ionic filipin channels.

    статья (98,2 K)
  • 154. Functions fillers and additives for polymers

    Chemical identification of polymer additives and its significance for links in the plastics supply chain. The effect of additives on the properties of materials and on the cost of production of polymers. Quantitative determination of polymer additives.

    статья (13,5 K)
  • 155. Glucose biosensors - state of the art and prospects

    Rapid determination of glucose concentration in technical and biological systems as an important scientific and technical task of modern chemistry. Review of the latest technical solutions in this area. Problems of developing first-generation biosensors.

    статья (27,2 K)
  • 156. Growth of zinc oxide porous films via electrochemical anodization using glycerol based electrolyte

    Formation of the porous structure of zinc oxide. Morphological properties of anodized films. Methods of diffraction of X-rays and scanning electron microscopy. Analysis of electrochemical anodizing of zinc oxide in electrolyte based on glycerol.

    статья (505,8 K)
  • 157. H2S-зв’язаний нестероїдних протизапальних препарат АТВ-346 володіє зниженою гастротоксичністю порівняно з впливом його структурного аналога напроксену

    Вплив неселективного інгібітора напроксену і його структурного аналога, який містить гідроген сульфід, на процеси ліпопероксидації та продукції нітроген оксиду. Відзначення гастропротекторної дії, що проявилась зменшенням площі пошкоджень шлунка.

    статья (376,0 K)
  • 158. Homologation of heterocycles by a sequential reductive opening lithiation–electrophilic substitution–cyclization

    Reductive opening of heterocycles as a source of functionalized organolithium compounds. Methods for homologation of heterocycles. Double lithiation of thianthrene. Phthalan: a versatile starting material. Homologation of six-membered heterocycles.

    статья (195,8 K)
  • 159. Hybrid epoxy-amine hydroxyurethane-grafted polymer

    Preparing cured hybrid epoxy-amine hydroxyurethane-grafted polymer by novel structure with lengthy epoxy-amine chains, pendulous hydroxyurethane units and a controlled number of cross-links. Using their increased flexibility for manufacturing of leather.

    статья (200,1 K)
  • 160. Hydrodynamics modeling of gas separator inertial and filter elements for natural gas fine cleaning

    The trends in the development of modern gas separation equipment have been considered. On the basis of computer modeling the optimal size of the device has been obtained. Reasonable choice of a computer and mathematical experiments has been shown.

    статья (549,0 K)
  • 161. Hydrogen bond network in liquid water and assessment of indicators of its restructuring under the external influence

    The way to save part of the energy released when hydrogen bonds are formed in the form of the energy intensity of their mesh. Conditions for the onset of synchronous transitions of protons from single molecules to molecules of the H-bond network.

    статья (104,5 K)
  • 162. Hydrogen sulfide adsorption from natural gas and its treatment

    The research conducted in the field of adsorption-catalytic extraction of H2S from low sulfurous natural gases and conversion into elemental sulfur using the synthetic CaA zeolite and natural modified adsorber mordenite as well as the palladium catalyst.

    статья (252,6 K)
  • 163. I Всероссийская конференция с международным участием на тему "Химический анализ и медицина"

    Методы анализа объектов окружающей среды, пищевых продуктов и сырья для их производства при помощи системы GO-xHT. Контроль содержания тяжелых металлов в различных биологических, фармацевтических пробах. Хроматографический анализ белков и пептидов.

    реферат (2,1 M)
  • 164. III-я группа периодической системы таблицы Д.И. Менделеева

    Изучение подгруппы химических составляющих 3-й группы периодической таблицы Менделеева. Обзор распространения в природе твёрдых металлов подгруппы скандия. Анализ применения сплавов на основе алюминия. Обоснование использование элементарного бора.

    презентация (1,1 M)
  • 165. Impact of cadmium on the growth and development of pinus sylvestris

    Features of the laboratory experiment with exposure to cadmium salt solution and growth processes peroxidise activity in seedlings Pinus Sylvestris. Features of influence of cadmium ions on peroxidise activity and accumulation of 15-day-old cultures.

    статья (210,9 K)
  • 166. In vitro деградация хитозановых мембран с различными условиями синтеза

    Исследование гидролитической деградации биополимерных плёнок, полученных методом полива на подложку 2% и 3% растворов хитозана, в 1% уксусной кислоте. Анализ потери массы хитозановых плёнок в зависимости от рН среды и скорости химических реакций.

    статья (659,6 K)
  • 167. Influence of calcination regimes on phase formation and magnetic property of nanopowders BiFeO3 synthesized by sol-gel method using citric acid

    Specific features of measuring the magnetic hysteresis of nano-sized multiferroic BiFeO3 powders synthesized by sol-gel method using citric acid at room temperature. Characterization of the main magnetic parameters of the obtained nanopowder samples.

    статья (714,5 K)
  • 168. Influence of fine-grinded glass additives on the induction and post-induction periods of Portland cement hardening

    Chemical compositions of Portland cement. Possibility of using waste glass in building technology. A structure alkaline compounds. Study of fine-grinded glass. Influence additives on the induction and post-induction periods of Portland cement hardening.

    статья (167,8 K)
  • 169. Influence of some physico-chemical factors on the biosynthesis of amylolitic enzymes of streptomycete origin

    Selection of the composition of a simplex nutrient medium by mathematical modeling. Optimization of the biosynthetic ability of the streptomyces recifensis strain for the synthesis of amylolytic enzymes. Influence of physical and chemical factors on it.

    статья (102,7 K)
  • 170. Influence of stress-dependent surface generation of interstitials on stacking fault growth and dopant diffusion in silicon

    Main calculation of activation volumes for interstitials and vacancie. Diffusion equations for point defects. Surface generation and recombination of point defects. Simulation of stacking fault growth. Simulation of stress-nediated dopant diffusion.

    статья (565,9 K)
  • 171. Influence of thermochemical activation of hydrolytic lignin by hydroxide of potassium on properties of carbon adsorbents

    Influence 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.

    статья (20,5 K)
  • 172. 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)
  • 173. Innovative technological scheme of Iraq oils refining

    Development of technological scheme for processing of oil extracted in Iraq. Characteristics and physico-chemical properties of the oils of Iraq. A description of the stages of oil refining. Calculations of material balances of each processing stage.

    статья (260,4 K)
  • 174. Interaction of red blood cells with fumed SiO2, Al2O3/SiO2 and TiO2/SiO2 by light scattering measurements

    Using the methods of flow cytometry and laser correlation spectroscopy study of the interaction of human erythrocytes with fumed oxides. Analysis of the results of determination of the scattering parameters and the degree of hemolysis of erythrocytes.

    статья (291,3 K)
  • 175. 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)
  • 176. Interfacial interactions in polyurethane elastomer-poly(vinyl chloride) blends

    Studies, the specificity of interphase interactions and features of the formation of nanoheterogeneous structure in polymer system. Determining the structure of interfacial region, the supramolecular structure and mechanical properties of the composites.

    статья (491,8 K)
  • 177. 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)
  • 178. Investigation of gold tissues surface from the cathedral of assumption (kyiv) sarcophagus

    The objects of the cultural heritage discovered by archaeologists on the area of ancient Kyiv. The topographical examination the fragments of gold tissues (XI–XVI ad.). Content two kinds of materials: golden spiral threads and light colour flakes.

    статья (541,0 K)
  • 179. Investigation of presence different surfactant on morphologies of PbTe nanostructures

    The hydrothermal method for preparation nanostructures with controllable morphologies. Synthesis of different morphologies of PbTe such as nanoparticles, nanorods of PbTe with using of Pb(NO3)2, TeCl4 and N2H4H2O in presence of different surfactants.

    статья (592,6 K)
  • 180. 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)

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