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Full-Text Articles in Education

Effect Of Gamma Irradiation On The Electrophysical Properties Of A Solid Solution (Gaas)1-X (Znse)X (0 ≤ X ≤ 0.80) Grown From The Liquid Phase, Kurban Gaymnazarov May 2021

Effect Of Gamma Irradiation On The Electrophysical Properties Of A Solid Solution (Gaas)1-X (Znse)X (0 ≤ X ≤ 0.80) Grown From The Liquid Phase, Kurban Gaymnazarov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

An epitaxial layer of a varizon solid solution (GaAs)1-x(ZnSe)x, 0


Experimental Investigation Of The Algorithms Of Selection Of The Signs In Description., Musokhon Dedekhanov, Abduvali Mamatov- May 2021

Experimental Investigation Of The Algorithms Of Selection Of The Signs In Description., Musokhon Dedekhanov, Abduvali Mamatov-

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the results gained in the experimental examination of algorithms of picking out descriptional signs are given in the issue of recognizing a person. These algorithms can be used in proccessing the systems of recognizing a person in the image of a person`s face.


A Three-Dimensional Analog Of The Tricomi Problem For The Equation Of A Mixed Parabolic-Hyperbolic Equation, Yusupjon Apakov, Khusniddin Ibrokhimov May 2021

A Three-Dimensional Analog Of The Tricomi Problem For The Equation Of A Mixed Parabolic-Hyperbolic Equation, Yusupjon Apakov, Khusniddin Ibrokhimov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this paper, we will study the solution of three-dimensional analog of the Tricomi problem for a mixed parabolic-hyperbolic equation. The uniqueness and existence of the solution of the set task is proved.


Factors Providing The Efficiency Of Semiconductor Lazers, Behzod Kuchkarov, Abrorbek Abdulkhayev May 2021

Factors Providing The Efficiency Of Semiconductor Lazers, Behzod Kuchkarov, Abrorbek Abdulkhayev

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In semiconductor lasers, the condition for inverse employment for zone –zone transitions is simplfiend and shows that there is need for a stronger p-n transition in practice .


Measuring Of Thermal Conductivity Coefficient In Soil Samples, Maksud Umaraliev, Adham Turgunov May 2021

Measuring Of Thermal Conductivity Coefficient In Soil Samples, Maksud Umaraliev, Adham Turgunov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The thermal conductivity coefficient of soil samples, taken from Pop, Uchkurgan region, Namangan district and from the city of Kokand, Fergana district, has been determined using the method of individual plates, the change with increasing temperature has been studied.


Flatter Of Viscoelastic Free Operous Rod At The End, Muxsin Mansurov, Ummatali Akbarov Mar 2021

Flatter Of Viscoelastic Free Operous Rod At The End, Muxsin Mansurov, Ummatali Akbarov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

This article discusses the problem of the flutter of a physically linear viscoelastic rod in a gas flow, taking into account linear dependencies. The formulation and method of solving the problem of flutter of a viscoelastic rod freely supported at its ends are presented.


Application Of Glycyrrhizic Acid Monopotassium Salt For Copper (Ii) Determination, Ugilay Abdurahmanova, Habibjon Kushiev Mar 2021

Application Of Glycyrrhizic Acid Monopotassium Salt For Copper (Ii) Determination, Ugilay Abdurahmanova, Habibjon Kushiev

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The authors of the article suggest simple and express method of spectrophotometric determination of copper through derivatives of glycyrrhizin acid. Optimal conditions of determining copper were found. Under optimal conditions there was created a graded graph, which is more linear in the range for copper concentration of 2.0–40.0 microgram/25 ml, contents method of spectrophotometric and emission spectroscope methods.


Ecological Distribution Of Spiders Of The Fergana Valley By Biotopes, Barno Bakhromova Mar 2021

Ecological Distribution Of Spiders Of The Fergana Valley By Biotopes, Barno Bakhromova

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

This article discusses the ecological distribution of spiders by biotopes in the Fergana Valley. Vegetation and their life-forms play an important role in the ecological distribution of spiders in the biotope.


Bioclimatic Modeling Of The Geographical Distribution Of The Subendem Species From The Flora Of The Urgut Botanicalgeographic Region, F Akbarov, U Qodirov, A Rahmatov Mar 2021

Bioclimatic Modeling Of The Geographical Distribution Of The Subendem Species From The Flora Of The Urgut Botanicalgeographic Region, F Akbarov, U Qodirov, A Rahmatov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the geographic distribution of the subendemic species from the flora of the Urgut botanical-geographical region has been modeled in Diva-GIS and Maxentsoftware. The impact of annual rainfall and temperature on the distribution of species was estimated. The most optimal climatic parameters for the distribution of the species were determined


Use Of Numerical Methods Of Vvtsp And Mak-Kormak For The Solution Of The Burgers Equation., Dilshod Navruzov Mar 2021

Use Of Numerical Methods Of Vvtsp And Mak-Kormak For The Solution Of The Burgers Equation., Dilshod Navruzov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the Burgers equations are used as a model equation. The Model Burgers equation describes the viscous flow of a fluid. Using the numerical methods of the All- Russian Center for Advanced Research and Development and Mac-Cormack, the convergence and stability parameters of difference schemes are studied when calculating the dynamics of a viscous medium by the grid method. The exact solutions of the above equation are presented. To solve the parabolic equation of Burgers, two-step finite-difference Mac-Cormack methods are used[4]. The Mac-Cormack method is used to solve the Burgers equation. The calculated data are compared with the …


Improvement Of The Formation Of Experimental Skills Of Students Of The 9th Class Of Chemistry, U Kнolmirzaev Mar 2021

Improvement Of The Formation Of Experimental Skills Of Students Of The 9th Class Of Chemistry, U Kнolmirzaev

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The article presents the history of the development of chemistry, its stages, the work of ancient scientists on chemical experiments, a review of work on improving school chemical experiments, as well as the results of research aimed at improving the formation of experimental skills in students.


Improvement Of Waste Water Treatment Of Silk-Winding Industries, Matluba 1amonova, Feruz 2umurov, Mukhtor 3amonov Mar 2021

Improvement Of Waste Water Treatment Of Silk-Winding Industries, Matluba 1amonova, Feruz 2umurov, Mukhtor 3amonov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The change in wastewater treatment parameters depending on the dose of coagulants and flocculants, when they are used together, was studied.It is determined that the combined use of mineral sorbent, coagulants and flocculants results in wastewater treatment efficiency of up to 96.1%.


Use Of Numerical Methods Of Vvtsp And Mak-Kormak For The Solution Of The Burgers Equation., Dilshod Navruzov Mar 2021

Use Of Numerical Methods Of Vvtsp And Mak-Kormak For The Solution Of The Burgers Equation., Dilshod Navruzov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the Burgers equations are used as a model equation. The Model Burgers equation describes the viscous flow of a fluid. Using the numerical methods of the All- Russian Center for Advanced Research and Development and Mac-Cormack, the convergence and stability parameters of difference schemes are studied when calculating the dynamics of a viscous medium by the grid method. The exact solutions of the above equation are presented. To solve the parabolic equation of Burgers, two-step finite-difference Mac-Cormack methods are used[4]. The Mac-Cormack method is used to solve the Burgers equation. The calculated data are compared with the …


Influence Of The Nature And Quantity Of The Catalyst On The Synthesis Of Morpholine Unsaturated Products With The Participation Of Vinyl Acetylene, Vohid Akhmedov, Jabbor Jumaev, Nasiba Sharipova Mar 2021

Influence Of The Nature And Quantity Of The Catalyst On The Synthesis Of Morpholine Unsaturated Products With The Participation Of Vinyl Acetylene, Vohid Akhmedov, Jabbor Jumaev, Nasiba Sharipova

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In the state issleduetsya influence of catalysts on the reaction of the combination of morpholine with vinilatsetilenom. There was an alternative to catalysts


Physical And Chemical Composition Of Water In Lake Kara-Kir, Aziz Kabilov Mar 2021

Physical And Chemical Composition Of Water In Lake Kara-Kir, Aziz Kabilov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

Lake Karakir is located in the northwest of the Bukhara oasis. The total area of the lake is 26.5-27.2 thousand hectares. The physicochemical composition of lake water changes depending on the seasons of the year. the fact that the amount of chlorides contained in water is 3.6 - 3.7 g / l, and sulfates in high concentration 5.0 - 5.2 g / l, indicates that the degree of salinity occurs due to chloride -sulphates. The readings for dissolved cislarod in water vary, mainly depending on the intensity of photosynthesis and aeration of the water


Ecological Distribution Of Spiders Of The Fergana Valley By Biotopes, Barno Bakhromova Mar 2021

Ecological Distribution Of Spiders Of The Fergana Valley By Biotopes, Barno Bakhromova

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

This article discusses the ecological distribution of spiders by biotopes in the Fergana Valley. Vegetation and their life-forms play an important role in the ecological distribution of spiders in the biotope.


Of The Kitab State Geological Reserve (Flora And Plant Cover), Baцrom Khujamkulov Mar 2021

Of The Kitab State Geological Reserve (Flora And Plant Cover), Baцrom Khujamkulov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The article provides interesting information about the nature, flora and vegetation of the Kitab State Geological Reserve. The plant species found in the reserve area have been systematically analyzed


Research On The Primary Introduction Of Sechium Edule (Jacq.) Sw. In Samarkand, Zamira Djumaeva Mar 2021

Research On The Primary Introduction Of Sechium Edule (Jacq.) Sw. In Samarkand, Zamira Djumaeva

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

Chayote - Sechium edule (Jacq.) Sw., Which is being introduced for the first time in Uzbekistan. data on the pharmaceutical significance of the plant, its nutritional properties and the morph biological studies conducted. It was noted that this work was initially carried out in the Samarkand region, and this valuable plant is one of the most effective and promising ways to meet the needs of the pharmaceutical industry and solve food problems in the country.


Study Of The Method Of Producing Complex Fertilizers Based On Nitrogen Acid Decomposition Of Glauconite And Slude Phosphorite, Fazlidin Khudoiberdiev, Nargisa Takhirova Mar 2021

Study Of The Method Of Producing Complex Fertilizers Based On Nitrogen Acid Decomposition Of Glauconite And Slude Phosphorite, Fazlidin Khudoiberdiev, Nargisa Takhirova

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The results of studies on the study of the physicochemical properties of the obtained products show that the introduction of phosphorites into the system improves the granulometric composition and quality of the finished product. When processing glauconite with 30-60% nitric acid, a granular complex fertilizer is obtained. To accelerate the transfer of minerals from the composition of glauconite sands to an easily assimilable form, they must be activated with nitric acid, аnd also the resulting mixture must be neutralized.


Bioclimatic Modeling Of The Geographical Distribution Of The Subendem Species From The Flora Of The Urgut Botanicalgeographic Region, F Akbarov, U Qodirov, A Rahmatov Mar 2021

Bioclimatic Modeling Of The Geographical Distribution Of The Subendem Species From The Flora Of The Urgut Botanicalgeographic Region, F Akbarov, U Qodirov, A Rahmatov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the geographic distribution of the subendemic species from the flora of the Urgut botanical-geographical region has been modeled in Diva-GIS and Maxentsoftware. The impact of annual rainfall and temperature on the distribution of species was estimated. The most optimal climatic parameters for the distribution of the species were determined


Flatter Of Viscoelastic Free Operous Rod At The End, Muxsin Mansurov, Ummatali Akbarov Mar 2021

Flatter Of Viscoelastic Free Operous Rod At The End, Muxsin Mansurov, Ummatali Akbarov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

This article discusses the problem of the flutter of a physically linear viscoelastic rod in a gas flow, taking into account linear dependencies. The formulation and method of solving the problem of flutter of a viscoelastic rod freely supported at its ends are presented.


2-Seleno-5,7-Dimethylpyrido (2,3-D) Pyrimidinone-4 Synthesis Of Coordination Compounds With Co(Ii), Ni(Ii) And Cu(Ii) Salts, Erkin Yakubov, Feruz 2nazarov, Farhod 3nazarov Mar 2021

2-Seleno-5,7-Dimethylpyrido (2,3-D) Pyrimidinone-4 Synthesis Of Coordination Compounds With Co(Ii), Ni(Ii) And Cu(Ii) Salts, Erkin Yakubov, Feruz 2nazarov, Farhod 3nazarov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

4 new complexes of Co(II), Ni(II) and Cu(II) with 2-Seleno-5,7- dimethylpyrido (2,3-d) pyrimidinone-4 have been synthesired. The structure of synthesired has been identifisated by IR- and ESR-spectroscopy.


Influence Of The Nature And Quantity Of The Catalyst On The Synthesis Of Morpholine Unsaturated Products With The Participation Of Vinyl Acetylene, Vohid Akhmedov, Jabbor Jumaev, Nasiba Sharipova Mar 2021

Influence Of The Nature And Quantity Of The Catalyst On The Synthesis Of Morpholine Unsaturated Products With The Participation Of Vinyl Acetylene, Vohid Akhmedov, Jabbor Jumaev, Nasiba Sharipova

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In the state issleduetsya influence of catalysts on the reaction of the combination of morpholine with vinilatsetilenom. There was an alternative to catalysts


Improvement Of Waste Water Treatment Of Silk-Winding Industries, Matluba 1amonova, Feruz 2umurov, Mukhtor 3amonov Mar 2021

Improvement Of Waste Water Treatment Of Silk-Winding Industries, Matluba 1amonova, Feruz 2umurov, Mukhtor 3amonov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The change in wastewater treatment parameters depending on the dose of coagulants and flocculants, when they are used together, was studied.It is determined that the combined use of mineral sorbent, coagulants and flocculants results in wastewater treatment efficiency of up to 96.1%.


Use Of Numerical Methods Of Vvtsp And Mak-Kormak For The Solution Of The Burgers Equation., Dilshod Navruzov Mar 2021

Use Of Numerical Methods Of Vvtsp And Mak-Kormak For The Solution Of The Burgers Equation., Dilshod Navruzov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the Burgers equations are used as a model equation. The Model Burgers equation describes the viscous flow of a fluid. Using the numerical methods of the All- Russian Center for Advanced Research and Development and Mac-Cormack, the convergence and stability parameters of difference schemes are studied when calculating the dynamics of a viscous medium by the grid method. The exact solutions of the above equation are presented. To solve the parabolic equation of Burgers, two-step finite-difference Mac-Cormack methods are used[4]. The Mac-Cormack method is used to solve the Burgers equation. The calculated data are compared with the …


Of The Kitab State Geological Reserve (Flora And Plant Cover), Baцrom Khujamkulov Mar 2021

Of The Kitab State Geological Reserve (Flora And Plant Cover), Baцrom Khujamkulov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The article provides interesting information about the nature, flora and vegetation of the Kitab State Geological Reserve. The plant species found in the reserve area have been systematically analyzed


Physical And Chemical Composition Of Water In Lake Kara-Kir, Aziz Kabilov Mar 2021

Physical And Chemical Composition Of Water In Lake Kara-Kir, Aziz Kabilov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

Lake Karakir is located in the northwest of the Bukhara oasis. The total area of the lake is 26.5-27.2 thousand hectares. The physicochemical composition of lake water changes depending on the seasons of the year. the fact that the amount of chlorides contained in water is 3.6 - 3.7 g / l, and sulfates in high concentration 5.0 - 5.2 g / l, indicates that the degree of salinity occurs due to chloride -sulphates. The readings for dissolved cislarod in water vary, mainly depending on the intensity of photosynthesis and aeration of the water


Study Of The Method Of Producing Complex Fertilizers Based On Nitrogen Acid Decomposition Of Glauconite And Slude Phosphorite, Fazlidin Khudoiberdiev, Nargisa Takhirova Mar 2021

Study Of The Method Of Producing Complex Fertilizers Based On Nitrogen Acid Decomposition Of Glauconite And Slude Phosphorite, Fazlidin Khudoiberdiev, Nargisa Takhirova

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

The results of studies on the study of the physicochemical properties of the obtained products show that the introduction of phosphorites into the system improves the granulometric composition and quality of the finished product. When processing glauconite with 30-60% nitric acid, a granular complex fertilizer is obtained. To accelerate the transfer of minerals from the composition of glauconite sands to an easily assimilable form, they must be activated with nitric acid, аnd also the resulting mixture must be neutralized.


Research On The Primary Introduction Of Sechium Edule (Jacq.) Sw. In Samarkand, Zamira Djumaeva Mar 2021

Research On The Primary Introduction Of Sechium Edule (Jacq.) Sw. In Samarkand, Zamira Djumaeva

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

Chayote - Sechium edule (Jacq.) Sw., Which is being introduced for the first time in Uzbekistan. data on the pharmaceutical significance of the plant, its nutritional properties and the morph biological studies conducted. It was noted that this work was initially carried out in the Samarkand region, and this valuable plant is one of the most effective and promising ways to meet the needs of the pharmaceutical industry and solve food problems in the country.


Bioclimatic Modeling Of The Geographical Distribution Of The Subendem Species From The Flora Of The Urgut Botanicalgeographic Region, F Akbarov, U Qodirov, A Rahmatov Mar 2021

Bioclimatic Modeling Of The Geographical Distribution Of The Subendem Species From The Flora Of The Urgut Botanicalgeographic Region, F Akbarov, U Qodirov, A Rahmatov

Scientific and Technical Journal of Namangan Institute of Engineering and Technology

In this article, the geographic distribution of the subendemic species from the flora of the Urgut botanical-geographical region has been modeled in Diva-GIS and Maxentsoftware. The impact of annual rainfall and temperature on the distribution of species was estimated. The most optimal climatic parameters for the distribution of the species were determined