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Baku, Azerbaijan

Eyvazova S.A.,Azerbaijan State Advanced Training Institute For Doctors Named After A Aliyev | Safarzade A.A.,National Academy of Aviation | Musayev G.C.,Azerbaijan Medical University
Azerbaijan Medical Journal | Year: 2012

The article presents the results of studying skin squamous epitheoliocytes and mucos of bladder from human papillomavirus-infected female patients by cytology and atomic force microscopy. It was established cytomorphology signs papillomavirus infection which have completely topographic differentiation from the normal surface of cells. Using the AFM we received the information about squamous epitheoliocytes with and without cytomorphological signs of papillomavirus infection (coilocytosis, dyskeratosis, parakeratosis).

Mishra S.K.,NIST Berhampur | Panda S.,NIST Berhampur | Padhy S.,Prasar Bharati Broadcasting Corporation of India | Ardil C.,National Academy of Aviation
World Academy of Science, Engineering and Technology | Year: 2011

In this paper, real-coded genetic algorithm (RCGA) optimization technique has been applied for large-scale linear dynamic multi-input-multi-output (MIMO) system. The method is based on error minimization technique where the integral square error between the transient responses of original and reduced order models has been minimized by RCGA. The reduction procedure is simple computer oriented and the approach is comparable in quality with the other well-known reduction techniques. Also, the proposed method guarantees stability of the reduced model if the original high-order MIMO system is stable. The proposed approach of MIMO system order reduction is illustrated with the help of an example and the results are compared with the recently published other well-known reduction techniques to show its superiority.

Khuntia S.R.,Indian National Institute of Engineering | Mohanty K.B.,Indian National Institute of Engineering | Panda S.,U.S. National Institute of Standards and Technology | Ardil C.,National Academy of Aviation
World Academy of Science, Engineering and Technology | Year: 2010

This paper presents a comparative study of various controllers for the speed control of DC motor. The most commonly used controller for the speed control of dc motor is Proportional- Integral (P-I) controller. However, the P-I controller has some disadvantages such as: the high starting overshoot, sensitivity to ontroller gains and sluggish response due to sudden disturbance. So, the relatively new Integral-Proportional (I-P) controller is proposed to overcome the disadvantages of the P-I controller. Further, two Fuzzy logic based controllers namely; Fuzzy control and Neuro-fuzzy control are proposed and the performance these controllers are compared with both P-I and I-P controllers. Simulation results are presented and analyzed for all the controllers. It is observed that fuzzy logic based controllers give better responses than the traditional P-I as well as I-P controller for the speed control of dc motor drives.

Tagiev B.G.,National Academy of Aviation | Tagiev B.G.,Azerbaijan Academy of Sciences | Abushov S.A.,Azerbaijan Academy of Sciences | Asadov E.G.,Azerbaijan Academy of Sciences | And 3 more authors.
Crystallography Reports | Year: 2015

Photoluminescence (PL) excitation and emission spectra of Ca(AlxGa1–x)2S4:Eu2+ (х = 0.1, 0.2) crystals have been investigated at different temperatures (20–300 K) and europium concentrations (3, 5, 7%). The emission spectrum is a band peaking at 556 nm, which is due to 4f65d → 4f7(8S7/2) transitions in the Eu2+ ion. An increase in the Eu2+ concentration leads to an increase in the PL intensity by a factor of almost 3. Stokes shift ΔS = 0.32 eV, Huang–Rhys factor s = 10 ± 2, activation energy Еа = 0.02 and 0.03 eV, and lifetime τ = 250 ns are determined by analyzing the spectra. © 2015, Pleiades Publishing, Inc.

Mekhtiev A.S.,National Academy of Aviation | Abdullaev N.A.,Research Institute of the Defense Industry Ministry | Asadov K.G.,Research Institute of Aerospace Information Science
Russian Journal of Nondestructive Testing | Year: 2014

Problems of the design criteria for comparing two possible versions of the trilateration approach to acoustic location are considered, viz., a location method based on measuring the amplitude of the signal and a location method based on measuring distances from receivers to a sound source. It is shown that when some conditions are met and the noise in the signal is low it can be preferable to select the method that is based on measuring the amplitude of the implementation signal of the trilateration approach for locating the source of an acoustic signal. © 2014, Pleiades Publishing, Ltd.

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