Tashkent State Pedagogical University

Tashkent, Uzbekistan

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Makhmudova G.I.,Tashkent State Pedagogical University | Satayev M.I.,Tashkent State Pedagogical University | Nurtayev U.N.,Tashkent State Pedagogical University | Karatayev M.S.,Tashkent State Pedagogical University | And 2 more authors.
Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti | Year: 2016

In article the basic results of research of influence of structure of a basic interlacing on physicomechanical properties of plush jersey are stated. It is established that introductions in structure of additional elements reduce an extensibility on length and on width, reduces superficial density, increases durability of jersey. Among the main properties defining its the stability tensile properties, shrinkage, rigidity, reversible and irreversible deformations are. It is established that introduction to structure of jersey of press loops and change of their quantity in a rapport of an interlacing increases a the stability of plush knitted jersey.

Makhmudova G.I.,Tashkent State Pedagogical University | Karataev M.S.,Tashkent State Pedagogical University | Satayev M.I.,Tashkent State Pedagogical University | Nurtayev U.N.,Tashkent State Pedagogical University | And 2 more authors.
Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti | Year: 2016

In given article the new structure unilateral of flated plush jersey is developed. Unilateral flated plush jersey receive introduction of a plush thread in smooth surface structure, or smooth surfaces. In the industry the big distribution was received by the plush jersey developed on the basis of a smooth surface. In this jersey plush can be formed both on to the party, and on obverse, but the jersey with an arrangement plush on seamy side is more often developed. Unilateral flated the plush jersey used in technical, in from concrete appointment possesses density of pile, high heat-shielding properties fastening of a plush thread in ground structure.

Turgunov K.,Academy of Sciences of Uzbekistan | Shomurotova S.,Tashkent State Pedagogical University | Mukhamedov N.,Academy of Sciences of Uzbekistan | Tashkhodjaev B.,Academy of Sciences of Uzbekistan
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

In the title complex, [CuCl2(C8H6N 2O)2(H2O)2], the CuII ion is located on an inversion center and is octahedrally coordinated by two N atoms of the 1H-quinazolin-4-one ligand, two chloride ligands and two aqua ligands. The axial Cu - O distances are significantly longer [2.512 (2) Å], than the Cu - N [2.022 (2) Å] and Cu - Cl [2.3232 (4) Å] distances as a result of Jahn-Teller distortion. Aqua ligands are involved in intra- and inter-molecular hydrogen bonding, and N - H⋯O inter-molecular hydrogen bonds are formed between the organic ligands. In addition, weak π-π inter-actions are observed between the benzene rings of the ligand [centroid-centroid distance = 3.678 (1) Å].

Dzhalalov T.A.,Tashkent State Pedagogical University | Imamov E.Z.,Tashkent State Pedagogical University | Muminov R.A.,Academy of Sciences of Uzbekistan
Applied Solar Energy (English translation of Geliotekhnika) | Year: 2011

This paper considers the formation of molecular terms of lead selenide and lead sulphide and shows a correlation between the molecular term structure and maximum quantum yield of a solar energy converter in the case of the multiexciton generation effect. © 2011 Allerton Press, Inc.

Minenko E.P.,Academy of Sciences of Uzbekistan | Karachik N.V.,Tashkent State Pedagogical University | Sattarov I.,Tashkent State Pedagogical University | Pevtsov A.A.,U.S. National Solar Observatory
Astronomy Letters | Year: 2014

Our investigation has been carried using the instruments onboard the Solar Dynamics Observatory (SDO) providing a high resolution of images (AIA photographs and HMI magnetograms). We have investigated the structure and magnetic evolution of several coronal bright points and small scale N-S polarity magnetic fluxes closely associated with them. We also compare the evolution of the magnetic polarities of elementary isolated sources of positive and negative fluxes (magnetic bipoles) and coronal bright points. Tiny ("elementary") coronal bright points have been detected. A standard coronal bright point is shown to be a group of "elementary" coronal bright points that flare up sequentially. Our investigation shows that a change in the magnetic fluxes of opposite polarities is observed before the flare of a coronal bright point. We show that not all cases of the formation of coronal bright points are described by the magnetic reconnection model. This result has not been considered previously and has not been pointed out by other authors. © 2014 Pleiades Publishing, Inc.

Karachik N.V.,Tashkent State Pedagogical University | Karachik N.V.,Astronomical Institute AS RUz | Minenko E.,Astronomical Institute AS RUz | Sattarov I.,Tashkent State Pedagogical University | And 2 more authors.
Astronomische Nachrichten | Year: 2014

Using magnetograms and coronal images from two instruments on board the Solar Dynamics Observatory (SDO), we study structure and evolution of a limited number of coronal bright points (CBPs). Our results show that the relation between CBPs and their magnetic footpoints is not simple. In some cases, CBP may appear as a bright portion of a larger loop (with clearly identifiable footpoints), and in some cases, an isolated CBP may develop between magnetic poles, which might not be the closest ones to each other or which might not be involved in the magnetic flux cancellation. We suggest that the magnetic connectivity responsible for formation of isolated coronal bright points is governed by the orientation of the large-scale magnetic field. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Sattarov I.,Tashkent State Pedagogical University | Pevtsov A.A.,U.S. National Solar Observatory | Karachik N.V.,U.S. National Solar Observatory | Sherdanov C.T.,Astronomical Institute AS of Uzbekistan | Tillaboev A.M.,Tashkent State Pedagogical University
Solar Physics | Year: 2010

We describe an automatic routine to identify coronal bright points (CBPs) and apply this routine to SOHO/EIT observations taken in the 195 Å spectral range during solar cycle 23. We examine the total number of CBPs and its change in the course of this solar cycle. Unlike some other recent studies, we do find a modest ≈30% decrease in the number of CBPs associated with maximum of sunspot activity. Using the maximum brightness of CBPs as a criterion, we separate them on two categories: dim CBPs, associated with areas of a quiet Sun, and bright CBPs, associated with an active Sun. We find that the number of dim coronal bright points decreases at the maximum of sunspot cycle, while the number of bright CBPs increases. The latitudinal distributions suggest that dim CBPs are distributed uniformly over the solar disk. Active Sun CBPs exhibit a well-defined two-hump latitudinal profile suggestive of enhanced production of this type of CBPs in sunspot activity belts. Finally, we investigate the relative role of two mechanisms in cycle variations of CBP number, and conclude that a change in fraction of solar surface occupied by the quiet Sun's magnetic field is the primary cause, with the visibility effect playing a secondary role. © Springer Science+Business Media B.V. 2010.

Djabbarov G.,Tashkent State Pedagogical University
Journal of Physics: Conference Series | Year: 2016

The present paper devoted to study of the extreme boundary of the convex compact set of all semi-additive functionals on the four-point compactum. We shall find some classes of extreme points of the space semi-additive functionals OS(4). © Published under licence by IOP Publishing Ltd.

Sattarov I.,Tashkent State Pedagogical University
Proceedings of the International Astronomical Union | Year: 2010

Today's Solar Physics comes across of different type of fine structures in solar atmosphere including umbral dots and penumbral grains in sunspots, and G-band bright points in quiet Sun. In this report, we present evidence that umbral dots, penumbral grains, and, possibly, G band bright points are related to a common type of features in solar atmosphere magnetic flux tubes. © International Astronomical Union 2011.

Khairova I.V.,Kazan Federal University | Egamberdieva N.M.,Tashkent State Pedagogical University
International Journal of Environmental and Science Education | Year: 2016

The timeliness of the problem under study is that in conditions of the renewal of the content and system of education the interest to the communicative and development potentials of education in the system of course retraining of teachers who work in national (Tatar) schools is growing. However, actual academic complexes for teachers do not always express the idea of communicatively developing education as a technology, didactic system or model. In the article the model of communicatively developing technology of learning is presented. The technology contains the humanitarian potential and speech activating technologies. The main method used in the study was the pedagogic experiment which permitted us to conduct the experimental verification of communicatively developing approaches in teaching, providing certain level of coherent speech. The results of the experimental work proved that the use of communicatively developing methods in course retraining allows to improve the quality of teachers coherent speech. The main results of the study are: the content development of the communicatively developing program of Russian coherent speech for teachers attending extension courses, and also the structure and content definition of diagnostic studies of Tatar schools teachers coherent speech. The article materials may be used on extension courses for teachers and in the system of university studies for future teaches. © 2016 by iSER, International Society of Educational Research.

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