DEVELOPMENT OF INGIBITOR COMPOSITION OF CORROSION FOR PROTECTION OF STEEL ARMATURE

Author: Jumaniyazova Dilnoza Maxsudovna, Zakirov Baxtiyor Sabirjanovich, Jumaniyazov Maxsud Jabbiyevich

Abstract:

For over 150 years, reinforced concrete structures have been used in construction. A long-term study of the durability of reinforced concrete structures in various operating conditions shows that dangerous damages caused by the development of reinforcement corrosion, which pose a threat to public health, are often encountered. Corrosion of reinforcement is usually caused by exposure to reinforced concrete by atmospheric chemical factors caused by the presence of aggressive components in concrete, such as sulfates, carbonates, chlorides. Today in domestic practice there are over 100 different compositions for inhibiting the corrosion of reinforcing steel. The disadvantages of the existing anticorrosive materials are their high cost and low accessibility, as well as the impossibility of using them to combat multicomponent salt and acid corrosion. In the conditions of the Aral Sea region, in the production of reinforced concrete products, highly saline water and quartz sand are used, which contain chloride and sulphate salts of calcium, magnesium and sodium in various amounts (Table 1). With the presence of the listed salts in the composition of reinforced concrete products, steel reinforcement is subjected to severe corrosion. Therefore, one of the important tasks is the protection of steel reinforcement in concrete products produced in the conditions of the Khorezm region and the Republic of Karakalpakstan. 

STRUCTURAL FEATURES OF SOLID SOLUTIONS (InSb)1-x(Sn2)x FILMS GROWN FROM A LIQUID PHASE ON GaAs SUBSTRATES AND SOME PHOTOELECTRIC PROPERTIES OF HETEROSTRUCTURES ON THEIR BASIS

Author: Saidov Amin Safarbayevich, Usmonov Shukrullo Negmatovich, Asatova Umida Palvanovna, Tolmas Ishniyazov

Abstract:

Layers of solid solutions (InSb)1-x(Sn2)x on (100) GaAs and (100) GaP substrates were grown by liquid phase epitaxy from an indium melt solution. The solid solution (InSb)1-x(Sn2)x (0 х 0.05) had a mono-crystal structure with the orientation (100), constant of the lattice as.s. = 6.486 Å and the hole conductivity type. The spectral dependence of the absorption coefficient was used to estimate the band gap of the epitaxial layer of the solid solution, which was 0.11 eV. The spectral photosensitivity of n-GaAs–p-(InSb)1-x(Sn2)x and n-GaP–p-(InSb)1- x(Sn2)x heterostructures covers the wavelength range from 1.0 to 5.3 μm. 

ISHAKHON IBRAT’S ROLE IN THE LAW

Author: Abdullaeva Manzura

Abstract:

In this article, Isakhan Ibrat's contribution to jurisprudence is explained by studying the poet's work and analyzing historical sources and works. The author also tries to interpret the essay "True word" written in the article by Ibrat's "Selected Works", and tries to make a deep analysis of the poem's poem "Qazi qotil". He also cites his arguments by quoting various literary scholars on the contribution Ibrat has made to his jurisprudence.

THE ROLE OF BASIC AND SCIENCE COMPETENCES IN SUPPORTING PUPILS’ MATURITY

Author: Davletov Erkaboy Yusubovich

Abstract:

This article discusses the competence approaches, their sociopedagogical significance, directions, objectives, the importance of personal development, the opportunities for socialization of pupils in the general secondary schools in Uzbekistan and this article is a guide for teachers, curriculum authors and researchers.

REFORMS IN THE TOURISM SECTOR IN UZBEKISTAN AS A DRIVING FORCE OF THE TOURIST CULTURE OF STUDENTS.

Author: Nafasov Donyor Shernafasovich

Abstract:

This article highlights current reforms in the field of tourism, the development of tourism laws, decrees and decrees of the President of the Republic of Uzbekistan, as a key element in improving the tourist culture of students in higher education.

REGIONAL ASPECTS OF IMPROVING THE EFFICIENCY AND QUALITY OF TRAINING DURING THE PERIOD OF REFORMS ON THE SYSTEM OF HIGHER EDUCATION

Author: Rakhmonov Norim Razzakovich

Abstract:

The article highlights the regional aspects of improving the efficiency and quality of training. Such factors as educational quality assurance programs, the scientific potential of teachers who are involved in the educational process, means of organizing education, educational technology, and the level of quality of management of an educational institution are studied. The optimal ways and prospects for creating a competitive environment among faculty members to improve the quality of education and the state of the distribution of universities and branches by region in the future have been studied.

THE POWER OF SHAKESPEARE’S REALISM

Author: Gaffarova Dilafruz Vaydulla qizi

Abstract:

In this article the main attention is paid to the creation of Shakespeare’s tragedies and their roles in the world literature. In the following there are given information about Shakespeare’s realistic views and their description in his tragedies. In addition, in this article you can know about politeness theory which was used in Shakespeare’s major tragedies. The main periods of play writer’s life and creation of works are also given in the following. While reading we can learn it is obvious from Shakespeare’s works that he is aware of the various fields of his works.

ANALYSIS OF SOME PROBLEMATIC SITUATIONS IN UZBEK

Author: Khakimova Farida Ilhom qizi, Esanov Azizbek Shermamat o`g`li

Abstract:

In this article, authors discuss the issues related to the creation of language corpus of Uzbek Language. In this regard, the matter, such as the collection of language units in the corpus, different national corpus and difficulties in creating the corpus of Uzbek language, are thoroughly analyzed and a number of proposals are suggested.

SPOKEN AUTHENTICITY OF HISTORICAL WORDS IN THE DASTANS (EPIC POEMS)

Author: Sarvar Ruzimbaev, Dildora Khudayberganova

Abstract:

The given article is devoted to researching the historical words in the lexis of Khorezm Dastans. The historical methods such as social-political, military, constructive –architectural and religious are analyzed and their peculiar formation is brightened up.

IMPROVEMENT OF EFFECTIVENESS OF TEACHING RECEPTIVE TYPES OF SPEECH ACTIVITY TO THE STUDENTS OF NONLINGUISTIC UNIVERSITIES

Author: Rakhimova Umida Salievna

Abstract:

One of the methods to optimize the learning process is a related training in all kinds of speech activity. This paper discusses issues relating to training receptive types of speech activity (reading and listening), namely especially the conditions in which they arise; real communication conditions in comparison with the educational process; psychological mechanisms involved; mutual receptive types of speech activity.