Effect of the sound absorbing linings on the acoustic field in the premises
Автор(ы): Akmalayev K.*Tukibaeva M.*Omarov C.*
Объем документа: С. 31-39
МРНТИ: 29.37.35
Ключевые слова: акустическое поле помещения*звуковое поглощение*релаксационное поглощение*звукопоглощающие облицовки*
Реферат: The influence of absorbent linings in the form of the structure of the acoustic field in the premises. For the study we examined the surfaces of the wings sound absorption on the basis of decorative acoustic blend of cotton waste production. In this paper we propose a rapid method for estimating the sound pressure level sound absorbing facings flat space frame structures. Thus it is possible to distinguish two moments: pores size in average little bit less millimeter that lays in the field of acoustically effective pores; additives of active substance and PAB serve as the center of crystallizations for hydrating from the grains of plaster double aqueous calcium sulfate knitting crystals dissolved in water. From the sample microstructure it is visible, that crystals of double aqueous calcium sulfate is formed not only in the form of petals and the truncated prisms. Such morphology of crystals assumes higher durability of intercrystal contacts and accordingly forms structure with higher durability of material.
The Gibbs function normalized to the total number of electrons
Автор(ы): Balakaeva G. T.*Aldabergenov M. K.*
Объем документа: С. 394-403
МРНТИ: 31.15.25
Ключевые слова: среднеэлектронная функция Гиббса*эффект электронно-ядерного взаимодействия*многокомпонентные системы*устойчивость систем*скорость химических реакций*
Реферат: The new concept \"The function normalized to number of electrons\" the physical meaning of which is to determine the chemical bond as a collective effect of electron-nuclear interaction is proposed. The Gibbs function normalized to the total number of electrons adequately responds to all changes in the structure of the compound during formation of bonds and indicates the reactivity of the compound. On the basis of the results of researches of potassium silicates and aluminates systems, the possibility of prediction of compound stability, the implementation of triangulation of multi-component systems and the determination of mechanisms and rate of reactions are shown.
Investigation of the surface properties of vinyl ethers - sodium 2-acrylamido-2-methylpropanesulfonate copolymers
Автор(ы): Khussain S. Kh.*Shaikhutdinov E. M.*Seitkaliyeva N. Zh.*Zhenisova A. Zh.*
Объем документа:
МРНТИ: 31.15.35
Ключевые слова: поверхностное натяжение растворов*поверхностная активность сополимеров*стандартная свободная энергия адсорбции*
Реферат: The surface properties of water soluble copolymers vinyl ethers of monoethanolamine and ethylene glycol with sodium 2-acrylamido-2-methyl-propanesulfonate were investigated by studying adsorption at the aqueous solution - air interface. It is found that copolymers have considerably higher surface activity in comparison with poly- sodium 2-acrylamido-2-methyl-propanesulfonate.
En-route mechanical activation of viscous oil and oil products transported in railroad tank cars
Реферат: The authors of this document are aiming to substantiate the advantages of en-route mechanical activation technology as aids for railroad transportation of viscous oil and oil products in tank cars. The conceptual design implies the use of momentum generated by brake action. This document also contains preliminary data of laboratory research confirming the validity of the developed concept.
Numerical study of the mechanism of formation of sodium chloride domes in geological structures depending on the geometrical sizes of area
Автор(ы): Akhmadzhanov T. K.*Tanirbergenov A. G.*Elmaksoud A. S.*Nuranbaeva B. M.*
Объем документа: С. 1246-1248
МРНТИ: 38.65.03
Ключевые слова: геологические солянокупольные структуры*механизмы формирования соляного купола*
Реферат: The is intense-deformed condition of dome structures during growth of a hydrochloric dome is investigated.
The method of mining of oil of high sticky with chemical active additives and thermal vertex tube in a horizontal well
Автор(ы): Akhmadzhanov T. K.*Igembayev I. B.*
Объем документа: С. 1249-1251
МРНТИ: 52.47.23
Ключевые слова: горизонтальные пласты месторождений*тяжелая нефть*газ*методы повышения нефтеотдачи*
Реферат: There are a large number of chemical and thermal methods for increasing the production of high sticky, high parraffinic oil and bitumen, which undoubtedly enhance oil recovery considerably. However, these methods require large financial investments, whether for equipment, new technology or the coolant itself or with chemical additives.
Chemical properties of reservoirs, oil and gas of Kashagan field, Southern part of pre-Caspian depression, Kazakhstan
Автор(ы): Akhmadzhanov T. K.*Elmaksoud A. S.*Baiseit D. K.*Igembyaev I. B.*
Объем документа: С. 1251-1252
МРНТИ: 52.47.17
Ключевые слова: свойства нефти месторождений Кашаган*химические свойства резервуаров*
Реферат: Kashagan field is one of the largest oilfields discovered in the last 30 years. It\'s a large, isolated carbonate bank, one of the biggest buildups in an archipelago that characterized the Pre-Caspian Basin from the Devonian to the Carboniferous and that now hosts large hydrocarbon reserves. Three new wells were drilled in East Kashagan (KE-4, KE-6, KE-A-01), another three are being drilled (KE-A-02, KE-A-03, KE-5-01) and reservoir properties.
Evaluation of thermal and thermo chemical properties the well bottom zone
Автор(ы): Akhmadzhanov T. K.*Baiseit D. K.*
Объем документа: С. 1252-1254
МРНТИ: 52.47.17
Ключевые слова: термохимические свойства нефти*свойства газа*оценка месторождений*проницаемость скважин*нефтеотдача скважин*
Реферат: The performance of oil and gas wells and absorption capacity of injection depend mainly on the permeability of rocks, pitting the reservoir. The permeability of rocks of the same layer can be dramatically alterted in its different zones or areas. Sometimes when the general good permeability reservoir some wells reveal a zone of low permeability, resulting in deteriorating the flow of oil and gas to them. The natural permeability of the recks under the influence of other reasons can also deteriorate over time.
The Effect of Molar Ratios of the Monomers on the Physico-Mechanical Properties of Ordinary Portland Cement
Автор(ы): El-Sayed Moussa Negim*Jamal Khatib*Khalid Al Mutairi*Rakhmetullayeva R.*Mun A. G.*Yeligbayeva G. Zh.*
Реферат: Hydrophilic copolymer lattices based on 2-hydroxy ethyl methacrylate (2-HEMA) were synthesized with different molar ratios (95/05, 90/10 and 85/15)using azo-bisisobutyro-nitril (ABIN) as initiator and alcoholic solution as solvent. The obtained lattices were characterized by FT-IR, H NMR, tensile strength, mass spectra, TGA, DSC as well as viscosity.