Ganja, Azerbaijan
Ganja, Azerbaijan

Ganja State University is a public university in Ganja, Azerbaijan. Wikipedia.

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Azhdarov G.Kh.,Azerbaijan Academy of Sciences | Zeynalov Z.M.,Ganja State University | Agamaliyev Z.A.,Azerbaijan Academy of Sciences | Kyazimova A.I.,Ganja State University
Crystallography Reports | Year: 2010

The problem of component distribution in solid solution crystals grown from a melt fed by rods made of the components of the system, with allowance for the dependence of their segregation coefficients on the melt composition, has been solved in the Pfann approximation. Examples determining the conditions for growing homogeneous single crystals of solid solutions with a specified composition and obtaining (in a unified cycle) crystals composed of several uniform parts of different compositions are presented for the Si Ge system. The good prospects of using the method of double feeding the melt for growing single crystals of semiconductor solid solutions with specified graded and/or uniform compositions are shown. © Pleiades Publishing Inc. 2010.

Azhdarov G.Kh.,Azerbaijan Academy of Sciences | Zeynalov Z.M.,Ganja State University | Zakhrabekova Z.M.,Azerbaijan Academy of Sciences | Kyazimova A.I.,Ganja State University
Crystallography Reports | Year: 2010

It is shown by Hall measurements that quenching complexly doped Ge 1 - x Si x 〈Cu, Al〉 (0 ≤ x ≤ 0.20) crystals from 1050-1080 K leads to the formation of additional electroactive acceptor centers in them. The activation energy of these centers increases linearly with an increase in the silicon content in the crystal and is described by the relation E kx = (52 + 320x) meV. Annealing these crystals at 550-570 K removes the additional acceptor levels. It is established that the most likely model for the additional electroactive centers is a pair composed of substituent copper and aluminum atoms (Cu s Al s ) or interstitial copper and substituent aluminum atoms (Cu i Al s ). It is shown that the generation of additional deep acceptor levels must be taken into account when using the method of precise doping of Ge1 - x Si x 〈Al〉 crystals with copper. © 2010 Pleiades Publishing, Ltd.

Azhdarov G.Kh.,Azerbaijan Academy of Sciences | Zeynalov Z.M.,Ganja State University | Kyazimova V.K.,Azerbaijan Academy of Sciences | Huseynli L.A.,Azerbaijan Academy of Sciences
Inorganic Materials | Year: 2010

Hall effect measurements demonstrate that quenching of Ge 1-x Si x 〈Cu,In,Sb〉 (0 ≤ x ≤ 0.20) multiply doped crystals from 1050-1080 K leads to the formation of additional deep donor centers. The energy level of the centers is located in the bottom half of the band gap of the Ge 1-x Si x crystals and is a linear function of host composition. Annealing the crystals at 550-570 K completely eliminates the additional donor levels. The most likely model of the additional deep donors is a pair of substitutional copper and indium atoms (Cu sIn s) or a complex of a copper interstitial and a substitutional indium atom (Cu iIn s). © 2010 Pleiades Publishing, Ltd.

Bagheri S.M.,Baku State University | Alverdiyev I.J.,Ganja State University | Aliev Z.S.,Azerbaijan Academy of Sciences | Yusibov Y.A.,Baku State University | And 2 more authors.
Journal of Alloys and Compounds | Year: 2015

The phase relations in the 1.5GeS2 + Cu2GeSe3 虠 1.5GeSe2 + Cu2GeS3 system have been investigated over the entire concentration range mainly by thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques, with the aid of microhardness and electro-motive force measurements (EMF) applied to equilibrated alloys. The liquidus surface projection, isothermal section at 800 K and the phase diagrams of the two vertical sections have been constructed. The homogeneity ranges and primary crystallization fields of phases as well as the character and temperature of non- and monovariant equilibria were determined in the system. It was found that the system is reciprocally reversible and is featured by continuous solid solubility fields along the boundary GeS2-GeSe2 and Cu2GeS3-Cu2GeSe3 systems. The partial molar thermodynamic functions (ΔG¯,ΔH¯,ΔS¯) of copper were calculated for the Cu2GeS3-xSex (for x = 0.6; 1.2; 1.8; 2.4) solid solutions based on the results of the EMF measurements. © 2014 Elsevier B.V. All rights reserved.

Azhdarov G.Kh.,Azerbaijan Academy of Sciences | Zeynalov Z.M.,Ganja State University | Agamaliyev Z.A.,Azerbaijan Academy of Sciences | Mamedova S.O.,Ganja State University
Crystallography Reports | Year: 2011

The problem of growth dynamics for crystals of binary solid solutions, obtained by the constitutional supercooling of the melt with a silicon feeding rod, has been solved within the Pfann approximation. The dependences of the change in the axial growth rate of Ge1-x Si x crystals (0 are calculated. It is shown that the Ge1-x Si x crystallization rate significantly changes during growth. The results make it possible to determine the optimal conditions and technological parameters for growing Ge1-x Si x single crystals (0 ≤ x ≤ 0.3) with a specified concentration gradient along the crystallization axis. © 2011 Pleiades Publishing, Ltd.

Huseynov S.T.,Ganja State University
AICT 2013 - 7th International Conference on Application of Information and Communication Technologies, Conference Proceedings | Year: 2013

The paper devoted to methodic of programming and ways of using of object oriented programming software Microsoft Excel Visual Basic for Applications for laboratory workshops of students in studies of computer modeling courses. The way of using of this programming environment is presented in systematic form and in kind of practical usage for students and lecturers. Here are presented all main stages and consequences for numerical simulation of classic math models in ecology via MS VBA Excel (for continual and discrete systems). The methodic of printout of results of numerical simulation and automation of Excel charts creation are presented too. © 2013 IEEE.

Huseynov S.T.,Ganja State University
8th IEEE International Conference on Application of Information and Communication Technologies, AICT 2014 - Conference Proceedings | Year: 2014

The paper has devoted to the much more important field of modern applied mathematics education: using interactivity of computer mathematics for qualitative analysis of dynamical systems. Author has developed universal methodical approaches: using a hybrid technique - both symbolic and numerical computations. In the paper it has been showed number of examples with original program cods and relevant computer mathematics visualization of symbolically computed functions, which are presented in 2D and 3D graphs to perform of more convenient qualitative analysis.

Amrahov V.T.,Ganja State University
Life Science Journal | Year: 2014

The problems on the improvement of the economic mechanism of the structural policy of the state in the agricultural market have been researched in the article. For this purpose, first of all, the research level of the problem have been viewed, the priority goals and duties have been determined. Structure of agricultural market, its mechanism of action, institutional basics, specific features of the agricultural market, the theoretical aspects, its regulation directions, the role of credit and financial mechanisms have been researched. The importance of regulating and improving the state policy regarding agricultural market has been substantiated. A group of proposals and recommendations have been provided on solution of the considered problems.

Huseynov S.T.,Ganja State University | Ibadov N.V.,Ganja State University | Aslanov A.A.,Ganja State University
2012 6th International Conference on Application of Information and Communication Technologies, AICT 2012 - Proceedings | Year: 2012

Interactive learning of mathematical physics at the university education essentially depend on the methods of computer visualization. Currently, there is the big number of software in computer mathematics, and all of them have different quality degree of computer visualization. Therefore, in this direction it is very important to correctly select and properly apply the most suitable software. In the article there are presented different important practical issues of computer visualization and the use of computer mathematics to achieve maximum efficiency in the interactive teaching of the basic divisions of mathematical physics. © 2012 IEEE.

PubMed | Ganja State University
Type: Journal Article | Journal: Metallomics : integrated biometal science | Year: 2011

Action sites of different metals in the electron transport reactions of Photosystem II (PS II) evaluated by delayed fluorescence in the ms range (ms DF) and pigment-pigment, pigment-protein and protein-protein interaction states by electrophoretic measurements are presented. The main targets for the metals action were shown to be:(i) Cd(2+), Ni(2+), Co(2+)-Y(z) or CaMn(4)-cluster on the donor site with dependence on pH;(ii) Ni(2+), Co(2+), Zn(2+), Al(3+), Mn(2+) between Q(A) and Q(B) on the acceptor site; effect of Al(3+) and Mn(2+) is observed only in acidic pH. Investigated metals bring about monomerization of oligomeric and dimeric chlorophyll-protein complexes (CPC) and destabilization of protein-protein interactions. Molecular mechanisms of metals interference with the structure of PS II are discussed.

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