KHIVA IS A WHEAT-GROWING REGION, DESPITE THE FACT THAT THE LAND NOT FERTILE.
In this article, the socio-economic life of the Khiva khanate is spoken about and basing on the materials and given information about the plants sowed by the people of Khiva, the ways of land cultivation and techniques of land irrigation by O.O. Shkapsky....

Actual problems of history, philosophy and sociology / 2019 / December

Jumaniyazova Mamlakat, Kamolova Nargiza

Volume 3 | Issue 4

3 December 2019, 01:36

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HARMFUL LOCUSTS AND THEIR NATURAL PESTS IN THE SOUTH ARAL SEA REGION
The article provides information on the morphology and physiology of the spreading vermin locusts, which cause great damage to agrocenoses and pastures in the Southern Aral Sea regions. It also provides a brief overview of the natural pests of harmful locusts spread throughout the area....

Actual problems of Natural Sciences / 2019 / December

Abdalyazov Nematjon Allabergan o`g`li, Nurjanov Allabergan Abdalyazovich, Gapparov Furkat Ahadovich

Volume 3 | Issue 4

3 December 2019, 01:36

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BIO-ECOLOGICAL CHARACTERISTICS OF THE MOST COMMON DOMINANT SPECIES PECULIAR TO THE YOUNGER FAMILY OF THE IPIMORPHINAE (BECK, 1989), OCCURRING IN THE AGROCENOSIS OF THE LOWER AMU DARYA REGION
This article describes biological and ecological features of the most common night-time butterflies peculiar to the Ipimorphinae subspecies, caught in the Lower Amu Darya agrocenosis, including time of their flight, the food specialization of butterflies and the number of generations....

Actual problems of Natural Sciences / 2019 / December

Bekchanov Khudaybergan Urinovich, Bekchanova Mokhira Khudaybergan qizi

Volume 3 | Issue 4

3 December 2019, 01:36

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PROSPECTS OF THE USE OF STIMULATORY BIO PREPARATIONS ON CULTIVATION OF POTATO IN SALINE SOIL CONDITIONS
The research based on several years of screening, strains resistant to NaCl and Na2SO4 salts (up to 200 mM) were selected from the cotton rhizosphere, it is identified that the strains of the Pseudomonas and Bacillus strains are classified as Pseudomonas stutzeri SKB-308, Bacillus subtilis SKB-309,...

Actual problems in modern technical sciences / 2019 / December

Muradova Sayyora Sobirovna, Madreyimova Dilfuza Erkabayevna, Ibragimova Nasiba Muminovna

Volume 3 | Issue 4

3 December 2019, 01:36

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ANORTHITE-STRUCTURAL GLASS-CERAMICS ON THE BASE OF DIABASES OF ARVATEN DEPOSIT
The article investigates obtaining anorthite structural glass-ceramic materials from diabase rocks. According to x-ray data, the main crystalline phase in them is anorthite-like solid solutions....

Actual problems in modern technical sciences / 2019 / December

Aripova Mastura Khikmatovna, Babakhanova Zebo Abdullayevna, Jumaniyozov Hurmatbek Palvannazirovich

Volume 3 | Issue 4

3 December 2019, 01:36

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RESULTS OF INTEGRATION OF INFORMATION SYSTEM IN CORPORATE NETWORK OF TASHKENT UNIVERSITY OF INFORMATION TECHNOLOGIES
In this article, models and solutions for the integration of such educational automated systems as the information library system (ILS) and the antiplagiarism system are examined. Integration of systems is based on the compatibility of databases, if more precisely in the metadata of different...

Actual problems in modern technical sciences / 2019 / December

Karimov Uktam Ulugbekovich

Volume 3 | Issue 4

3 December 2019, 01:36

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FEATURES OF CURRENT TRANSFER IN n-GaPp-(InSb)1-x(Sn2)x HETEROSTRUCTURE
n-GaPp-(InSb)1-x(Sn2)x (0  х  0.05) heterostructures were fabricated and their current-voltage characteristics were studied. At low voltages V < 0.5 V the current-voltage characteristic is described by the exponential law: I = I0exp (qV / ckT) with an exponent c = 3.6, and at large voltage...

Actual problems of Mathematics, Physics and Mecanics / 2019 / December

Asatova Umida Palvanovna

Volume 3 | Issue 4

3 December 2019, 01:36

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ABOUT THE PROBLEM OF SEARCHING FOR SETS OF ESSENTIAL VARIABLE LOGIC FUNCTIONS AND TESTS OF TABLE
In this paper, we study the problems of finding minimal tests, testers, and a set of variables that are essential for not everywhere defined functions. Such problems are discrete extremal problems of one class, and in algorithms that implement methods for solving them, at each step, a set of...

Actual problems of Mathematics, Physics and Mecanics / 2019 / December

Kabulov Anvar Vasilovich, Erkin Urunbaev, Normatov Ibrokhimali Holmamatovich, Ashurov Aziz Olimjonovich

Volume 3 | Issue 4

3 December 2019, 01:36

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SOLUTION OF SYSTEMS OF LOGIC EQUATIONS IN RECOGNITION TASKS
In logical recognition systems, logical methods are used to construct the recognition algorithms based on discrete analysis and propositional calculus based on it. In the general case, the logical method of recognition provides for the presence of logical connections expressed through a system of...

Actual problems of Mathematics, Physics and Mecanics / 2019 / December

Kabulov Anvar Vasilovich, Erkin Urunbaev, Normatov Ibrokhimali Holmamatovich, Ashurov Aziz Olimjonovich

Volume 3 | Issue 4

3 December 2019, 01:36

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SOME LOCAL PROBLEMS FOR THE PARABOLIC-HYPERBOLIC TYPE EQUATION INVOLVING A RIEMANN–LIOUVILLE FRACTIONAL DIFFERENTIAL OPERATOR
In this work, we study the boundary-value problems for a third-order mixed type loaded equation with fractional differential operator. Using method of integral equations, a unique solvability of the formulated problem has been proved....

Actual problems of Mathematics, Physics and Mecanics / 2019 / November

Baltaeva Umida Ismoilovna, Sharipova Shokhista Bakbergan qizi

Volume 3 | Issue 4

3 November 2019, 23:50

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