International scientific journal "Science and Innovation"

Series A Volume 1 Issue 3


SHORT TERM LIFE INSURANCE MODELS

Fayzullayev Sharofiddin Erkin o’g’li, Ne’matov Asliddin Rabbimqulovich

In this article studied the mathematical models of short term life insurance models and analysis of personal loss in short term insurance as well as accurate calculation of aggregate loss characteristics are presented.

29.06.2022 Volume 1 Issue 3 View more Download

SOLVING SYSTEMS OF NONLINEAR EQUATIONS IN MATLAB

М.Н.Урманов, Н.Д.Нуритдинов, А.Алиева

For Solving systems of nonlinear equations in Matlab. To solve SNAU, iterative methods must be used. These are methods that, in a certain number of steps, obtain a solution with a certain accuracy. It is also very important when solving to set a sufficiently close initial approximation, that is, such a set of variables that are close to the solution. If a system of 2 equations is being solved, then the approximation is found by plotting two functions.

27.06.2022 Volume 1 Issue 3 View more Download

EMISSION PROPERTIES OF OXIDIZED Mo-Zr ALLOY

Сабиров А.К.

This article studied the emission properties of oxidized alloys of refractory metals (Mo-Zr) in a stream of cesium atoms. The aim of this work is to reduce the value of the work function of the alloy - oxygen - cesium system. The addition of 3 atomic% zirconium to molybdenum increases the value and stability of emission in the flux of cesium atoms during its oxidation in an oxygen atmosphere at its temperature T = 1200K. The surface of the Mo - Zr alloy was studied by Auger electron spectroscopy.

27.06.2022 Volume 1 Issue 3 View more Download

ELIMINATION OF THE INFLUENCE OF THE TIME FACTOR ON THE NUMBER OF LEVELS

A.O.Abdug’aniyev, O’tanazarova Yulduz Ravshan qizi

This article is on time loss methods based on time series and includes the study of basic methods for modeling trend reversal methods.

26.06.2022 Volume 1 Issue 3 View more Download

EMISSION PROPERTIES OF OXIDIZED Mo-Zr ALLOY

Сабиров А.К.

This article studied the emission properties of oxidized alloys of refractory metals (Mo-Zr) in a stream of cesium atoms. The aim of this work is to reduce the value of the work function of the alloy - oxygen - cesium system. The addition of 3 atomic% zirconium to molybdenum increases the value and stability of emission in the flux of cesium atoms during its oxidation in an oxygen atmosphere at its temperature T = 1200K. The surface of the Mo - Zr alloy was studied by Auger electron spectroscopy.

26.06.2022 Volume 1 Issue 3 View more Download

TECHNICAL STRUCTURE AND WORKING PRINCIPLE OF THE "ANODE OR LIVING WATER" DEVICE

А.А.Мустафакулов, И.И.Толлибоев, Д.А.Норматова

The article describes the design and principle of operation of the anode water intake device. Information about the chemical properties of anode water is given.

26.06.2022 Volume 1 Issue 3 View more Download

THE USE OF COMPOSITE MATERIALS BASED ON INTERPOLYMER COMPLEXES AND PHOSPHOGYPSUM IN AGRICULTURE

Ниёзов Хабибулло Абдуллаевич

The article is devoted to the study of the properties of porous composite materials obtained by modifying interpolymer complexes based on urea-formaldehyde resin and sodium carboxymethylcellulose with phosphogypsum and their use in agriculture and water management.

24.06.2022 Volume 1 Issue 3 View more Download

ON THE CONTINUOUS MINIMAX PROBLEM FOR CLASS QUADRATIC FUNCTIONS

Отакулов Салим, Абдухамидов Нодир Тохир ўғли

In the paper we consider continuous minimax problem for class quadratic functions. In the nonsmooth optimization problem some properties of maximum function are studied. The conditions for existence and uniquely of solution are obtained. The necessary and sufficient conditions of optimality are researched.

23.06.2022 Volume 1 Issue 3 View more Download

LINEAR REGRESSION ANALYSIS OF PHYSICAL PHENOMENA

Мирзақулов Абдурасул Мелиқўзиевич, Мирзаҳалилова Наргиза Иномжон қизи

The study of physical phenomena on the basis of linear regression analysis is a factor in the development of students' abilities in the field of scientific research. on the basis of conducting virtual laboratory experiments of the laws, gifted, gifted students may be given the task of determining the attitude based on the results of the conducted experiments.

21.06.2022 Volume 1 Issue 3 View more Download

DIGITAL TV CONTROL SYSTEM AND MONITORING OF IPTV MULTISERVICE NETWORK

A.Karimova , Q.Toqsanbayev , E.Jolimbetova

Currently, the set of services offered to the services has strict limits on the parameters under the transport system. In the environment of multiservice networks of different traffic, the IPTV work requires the provision of a service level corresponding to the message quality in the given parameters. In this article, one of the main quality criteria of the IPTV work without the introduction of multimedia and interactive services in IPTV technology and strict demand for the base network of the provider is the quality of experience (QoE), which is the level of satisfaction of the consumer of services.

21.06.2022 Volume 1 Issue 3 View more Download