POLYPHINYLCHLORIDE WAS MODIFIED BY POLYETHYLENE POLYAMINE, AND THE IONITIS IN STATIC CONDITIONS OF COPPER (II), NICKEL (II) AND COBALT (II) IONS THEIR SORPTION FEATURES
Polyphinylchloride was modified by polyethylene polyamine, and the ionitis was studied in static conditions by the artificial solution of copper (II), nickel (II) and cobalt (II) ions. In static conditions, factors affecting the sorption process, such as time dependence, temperature and...

Actual problems of Natural Sciences / 2018 / December

Ismoilova Khimoyat Matnazarovna, Bekchanov Davronbek Jumanazarovich, Rajabov Elyor Bakhtiyorovich

Volume 2 | Issue 4

3 December 2018, 18:23

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ANALYSIS OF DESIGN PECULIARITIES OF PREVENTIVE SHOES FOR DIABETICS
Quality shoes are fundamental to affecting the health of the feet, in particular, when the foot can be subjected to many serious problems, as is the case with diabetes patients. This article identifies, identifies and analyzes the problems of correct design of shoes for people suffering from...

2018 / December

Djuraevich A. J, Khaydarov A. A, Muhammedova M. O

Volume 2 | Issue 4

3 December 2018, 18:20

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DETERMINATION OF THE INFLUENCE OF SPIN-OFF ROUNDESS ON THE VALUE OF SPINNING YARN DURING SPINNING
The article presents the results of studies of the influence of the unevenness of roundness of the spinning rings on the tension of the yarn produced. It is also noted that if the shape of the ring is distorted, then the slider's trajectory is not a circle, but some closed curve that follows...

Actual problems in modern technical sciences / 2018 / December

Babadjanov Sobit Xusanovich, Isxakova Fazilat Farrux qizi

Volume 2 | Issue 4

3 December 2018, 18:14

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DEVELOPING A NEW CONSTRUCTION MECHANISM OF MATERIAL MOVEMENT IN A SEWING MACHINE
The proposed mechanism allows to increase the reliability of sewing machines by reducing the loads in the kinematic pairs and simplifying the design, which leads to an increase in the speeds of movement of the material, thereby increasing the productivity of sewing machines....

Actual problems in modern technical sciences / 2018 / December

Djurayev Anvar Djurayevich, Tuguzbaeva Robiya Berdimuratovna

Volume 2 | Issue 4

3 December 2018, 18:11

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INVESTIGATION OF THE IMPACT OF THE ROTATION FREQUENCY OF THE DISCRETIZING DRUM ON THE PHYSICAL AND MECHANICAL PROPERTIES OF
This article presents the research results of the rotation frequency influence of a pneumatic spinning machine’s drum on the quality indicators of the yarn produced with a linear density of 29 tex. With the rotation frequency increase of the sampling drums, the specific breaking load of the yarn...

Actual problems in modern technical sciences / 2018 / December

Korabayev Sherzod Ahmadjonovich, Matismailov Saypila Lolashbayevich, Salohiddinov Jahongir Ziyoviddinovich

Volume 2 | Issue 4

3 December 2018, 18:09

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STUDY OF COTTON DRYING DEVICE TECHNOLOGIES
In cotton ginning cotton processing technologies, the cleaning of raw cotton is a very important process. In the operated purifiers a low purifying effect, in order to increase the cleaning effect, it is required to modernize the working elements of the cleaner. For this, it is necessary to study...

Actual problems in modern technical sciences / 2018 / December

Rasulov Ruzimurod Xasanovich, Norbayeva Dilfuza Voxidovna

Volume 2 | Issue 4

3 December 2018, 18:07

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ABOUT WAVEFUNCTIONS IN LOW-DIMENSIONAL SEMICONDUCTORS
The impressive progress in the fabrication of low-dimensional semiconductor structures during the past two decades has made it possible to reduce the effective device dimension from three-dimensional bulk materials, to quasi-two dimensional quantum well systems, to quasi-one dimensional quantum...

Actual problems of Mathematics, Physics and Mecanics / 2018 / December

Akhmedov Bakhodir, Rozikov Jurabek, Muminov Islomjon, Ruziboev Valijon, Zokirov Adham

Volume 2 | Issue 4

3 December 2018, 18:05

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STABILITY OF FINITE DIFFERENCE SCHEMES FOR SIMMETRIC HYPERBOLIC SYSTEMS
In this article we investigate the stability of the finite difference schemes using the Neumann method for symmetric hyperbolic systems. For the two-dimensional symmetric hyperbolic system, the condition of the Lax-Wendroff scheme stagnation has been studied. To check for resilience using MathCad...

Actual problems of Mathematics, Physics and Mecanics / 2018 / December

Sardor Usmanovich Dadabayev, Raxmonov Omadjon Mamasidiq ugli

Volume 2 | Issue 4

3 December 2018, 18:04

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SHOCK-ABSORBING VIBRATIONS OF THE ELASTIC ELASTOMERIC END OF THE ROTARY INERTIA
The problem of the longitudinal vibrations of the elastic strerin of the longitudinal impact of the second free end of the end of the tape is settled on the basis of the second order (classic) differential equation. Depending on the nature of stroke endings and the nature and conditions of the...

Actual problems of Mathematics, Physics and Mecanics / 2018 / December

Khujatov Nurbek Jumaboyevich, Abdikarimov Nabijon Ibadullayevich

Volume 2 | Issue 4

3 December 2018, 18:02

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INTERCAPACITANCE BETWEEN TWO CHARGES LOCATED IN THE DIFFERENT ENVIRONMENTS
It is investigated the dependence of intercapacitance between two point charges located in different environments on the relative position of border. The image method is used. It is considered two cases: the charges is located at line which is perpendicular to the border and the charges is located...

Actual problems of Mathematics, Physics and Mecanics / 2018 / December

Abdikarimov Azamat Egamberganovich, Yusupov Ahmad, Atamuratov Atabek Egamberdiyevich

Volume 2 | Issue 4

3 December 2018, 17:52

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