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Papers by Alisher Muminov

Research paper thumbnail of сучасне геополітичне положення україни у працях вітчизняних учених

Економічна та соціальна географія, 2014

Dedico este trabalho aos meus pais por sempre confiarem e apoiarem minhas decisões e sonhos AGRAD... more Dedico este trabalho aos meus pais por sempre confiarem e apoiarem minhas decisões e sonhos AGRADECIMENTOS A Deus, por iluminar meu caminho e ter me concedido forças e capacidade para chegar até aqui. Aos meus pais, Márcia e Giovani, meu irmão e minha cunhada, Guilherme e Walquíria, pelo amor incondicional e incentivo em todos os momentos. À Profª. Drª. Larissa de Freitas, minha orientadora. Obrigado pela orientação, pela oportunidade de desenvolver este projeto, pelos ensinamentos, conversas, atenção, muita paciência e confiança em meu trabalho. Às Profª. Drª. Heizir Ferreira de Castro e Profª. Drª. Patrícia Da Rós e ao Prof. Dr. Leandro Gonçalves de Aguiar, pelas inúmeras contribuições ao trabalho, pela disponibilidade e apoio.

Research paper thumbnail of Separated and complex flows

Research paper thumbnail of Transformation of Public Administration Mechanisms: Experience of Uzbekistan

International Journal of Engineering and Advanced Technology, 2019

Experts in the field of political research believe that computerization and the emergence of bran... more Experts in the field of political research believe that computerization and the emergence of branched information systems require further improvement of the communication foundations of interaction between the subjects of the political process. This seems to be one of the strategic directions in the development of modern democracy. The growing interest in the field of political communications in social research is due to the fact that the development of political communications has significant potential for further democratization of socio-political institutions and processes in modern society. This article discusses the issues of transformation of the public administration system in Uzbekistan, the formation of effective mechanisms of "Electronic Government", the existing problems and prospects for the development of this sphere in Uzbekistan

Research paper thumbnail of Specular reflection of hard gamma-quanta from surfaces with different roughness

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms, 2021

A model on the structure of a thin, weakly diverging beam of hard electron bremsstrahlung and its... more A model on the structure of a thin, weakly diverging beam of hard electron bremsstrahlung and its transformation during its reflection from a microscopically smooth surface at small angles had been developed, which makes it possible to establish dependences of the specular reflection coefficients on the angular and energy distributions. Experimentally, the reflection of a bremsstrahlung beam with the boundary energy Ee = 6.25 MeV formed at a sliding angle α = 40 μrad with an angular divergence δγ = 27 μrad from the surface of mercury (surfaces with various roughness) was investigated on a 120-meter base. The dependences of the specular reflection coefficients on the sliding angles, the energy of the reflected γ-radiation, and the surface roughness found in this experiment correspond to theoretical predictions.

Research paper thumbnail of Yerkurgan, los valles de Surjandarya y Kashkardarya: Surpad, primeros resultados de un proyecto arqueohistórico Hispano-Uzbeko

Research paper thumbnail of Modern models of social partnership in Uzbekistan

Currently, the special importance of social partnership is acknowledged as an effective mechanism... more Currently, the special importance of social partnership is acknowledged as an effective mechanism for involving the general public in participation in the socio-political, socio-economic and cultural life of the country in Uzbekistan. In this regard, the President of the Republic of Uzbekistan Sh.Mirziyoyev pointed out the need for consistent implementation: “the principle of mutual responsibility of citizens, the state and society, the connection of their rights and obligations. This principle serves as the basis for effective interaction between the state and the individual, the state and civil society in solving the important tasks facing our country. This article is devoted to the analysis of reforms aimed at the development of social partnership in Uzbekistan.

Research paper thumbnail of To the Way of Informed Society

International Journal of Recent Technology and Engineering, 2019

The article states that the vital need for information, the formation of the factors that contrib... more The article states that the vital need for information, the formation of the factors that contribute to its satisfaction, play a leading role at every stage of human development. Currently, interest of the international community in the development strategy of Uzbekistan and reform strategy is growing. A few years ago, those who did not properly understand the essence and significance of this development path are now studying it with great care and analyzing the wide-ranging reforms undertaken in the country over the last two or three years. From this point of view it is worth noting the importance of the article. Over the past years in the country, a lot of measures have been taken to liberalize the information sector and to ensure freedom of speech. The legal basis for the activities of mass media has been consistently and systematically improved. At the same time, the experience of foreign legislation and prospects of development of information and communication technologies were...

Research paper thumbnail of Interaction of Electromagnetic Waves with Thin Rotating Cylindrical Shell of Conductor in Vicinity of Weakly Gravitating String

International Journal of Modern Physics D, 2005

The boundary value problem for electromagnetic waves interaction with thin rotating cylindrical s... more The boundary value problem for electromagnetic waves interaction with thin rotating cylindrical shell of conductor in static cylindrical metric with weakly gravitating string has been solved analytically. Influence of line mass density on the string to the process under consideration is studied. It is shown that the increase of line mass density of the string diminishes effect of amplification of cylindrical electromagnetic wave under reflecting off conducting cylindrical rotating body in non-wave zone.

Research paper thumbnail of Makhalla as the Center and the Conductor of Socio-Political Development in Uzbekistan

Theoretical & Applied Science, 2017

Research paper thumbnail of Variational Principles for Constrained Electromagnetic Field and Papapetrou Equation

Research paper thumbnail of Motion of Spin 1/2 Massless Particle in a Curved Spacetime. II. Field Lagrangian Approach

Quasi-classical picture of motion of spin 1/2 massless particle in a curved spacetime is built on... more Quasi-classical picture of motion of spin 1/2 massless particle in a curved spacetime is built on base of simple Lagrangian model. The one is constructed due to analogy with Lagrangian of massive spin 1/2 particle. Equations of motion and spin propagation coincide with Papapetrou equations describing dynamic of photon in a curved spacetime.

Research paper thumbnail of Electromagnetic Field with Constraints and Papapetrou Equation

Zeitschrift für Naturforschung A, 2006

It is shown that a geometric optical description of the electromagnetic wave with respect to its ... more It is shown that a geometric optical description of the electromagnetic wave with respect to its polarization in a curved space-time can be obtained straightforwardly from the classical variational principle for the electromagnetic field. For this purpose the entire functional space of electromagnetic fields must be reduced to its subspace of locally plane monochromatic waves. We have formulated the constraints under which this can be achieved. These constraints introduce variables of another kind which specify a field of local frames associated with the wave. They contain some congruence with null-curves. The Lagrangian for constrained electromagnetic fields contains variables of two kinds, namely a congruence of null-curves and the field itself. This in turn yields two kinds of Euler- Lagrange equations. The equations of the first kind are trivial due to the constraints imposed. The variation of the curves yields the Papapetrou equations for a classical massless particle with heli...

Research paper thumbnail of Investigation of reflection of gamma radiation from the surface

SPIE Proceedings, 2000

The reflection of beam of bremstrahlung gamma radiation from the macroscopically smooth surface h... more The reflection of beam of bremstrahlung gamma radiation from the macroscopically smooth surface has been investigated. First results of the test performed on the base of microtron are presented. Effects of the gamma quanta reflection were observed by inclination of the reflector surface with respect to the beam axis.

Research paper thumbnail of Microwave Study of Influence of Trapped Vortices on Intergrain Weak Links in Eu123 Ceramics

Journal of low …, 2003

The well known low field signal observed in high temperature superconducting (HTS) ceramics by an... more The well known low field signal observed in high temperature superconducting (HTS) ceramics by an ESR spectrometer was used for studying the vortex structure of remanent fields in 123-ceramics. The drastically different behaviors have been observed for the ...

Research paper thumbnail of Motion of Spin 1/2 Massive Particle in a Curved Spacetime

Quasi-classical picture of motion of spin 1/2 massive particle in a curved spacetime is built on ... more Quasi-classical picture of motion of spin 1/2 massive particle in a curved spacetime is built on base of simple Lagrangian model. The one is constructed due to analogy with Lagrangian of massive vector particle. Equations of motion and spin propagation coincide with Papapetrou equations describing dynamic of classical spinning particle in a curved spacetime.

Research paper thumbnail of Motion of a Vector Particle in a Curved Spacetime III: Development of Techniques of Calculations

Modern Physics Letters A, 2006

The studies of influence of spin on a photon's motion in a Schwarzschild spacetime is continu... more The studies of influence of spin on a photon's motion in a Schwarzschild spacetime is continued. In the previous paper13 the first-order correction to the geodesic motion is found for the first half of the photon world line. The system of equations for the first-order correction to the geodesic motion is reduced to a non-uniform linear ordinary differential equation. The equation obtained is solved by the standard method of integration of the Green function.

Research paper thumbnail of сучасне геополітичне положення україни у працях вітчизняних учених

Економічна та соціальна географія, 2014

Dedico este trabalho aos meus pais por sempre confiarem e apoiarem minhas decisões e sonhos AGRAD... more Dedico este trabalho aos meus pais por sempre confiarem e apoiarem minhas decisões e sonhos AGRADECIMENTOS A Deus, por iluminar meu caminho e ter me concedido forças e capacidade para chegar até aqui. Aos meus pais, Márcia e Giovani, meu irmão e minha cunhada, Guilherme e Walquíria, pelo amor incondicional e incentivo em todos os momentos. À Profª. Drª. Larissa de Freitas, minha orientadora. Obrigado pela orientação, pela oportunidade de desenvolver este projeto, pelos ensinamentos, conversas, atenção, muita paciência e confiança em meu trabalho. Às Profª. Drª. Heizir Ferreira de Castro e Profª. Drª. Patrícia Da Rós e ao Prof. Dr. Leandro Gonçalves de Aguiar, pelas inúmeras contribuições ao trabalho, pela disponibilidade e apoio.

Research paper thumbnail of Separated and complex flows

Research paper thumbnail of Transformation of Public Administration Mechanisms: Experience of Uzbekistan

International Journal of Engineering and Advanced Technology, 2019

Experts in the field of political research believe that computerization and the emergence of bran... more Experts in the field of political research believe that computerization and the emergence of branched information systems require further improvement of the communication foundations of interaction between the subjects of the political process. This seems to be one of the strategic directions in the development of modern democracy. The growing interest in the field of political communications in social research is due to the fact that the development of political communications has significant potential for further democratization of socio-political institutions and processes in modern society. This article discusses the issues of transformation of the public administration system in Uzbekistan, the formation of effective mechanisms of "Electronic Government", the existing problems and prospects for the development of this sphere in Uzbekistan

Research paper thumbnail of Specular reflection of hard gamma-quanta from surfaces with different roughness

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms, 2021

A model on the structure of a thin, weakly diverging beam of hard electron bremsstrahlung and its... more A model on the structure of a thin, weakly diverging beam of hard electron bremsstrahlung and its transformation during its reflection from a microscopically smooth surface at small angles had been developed, which makes it possible to establish dependences of the specular reflection coefficients on the angular and energy distributions. Experimentally, the reflection of a bremsstrahlung beam with the boundary energy Ee = 6.25 MeV formed at a sliding angle α = 40 μrad with an angular divergence δγ = 27 μrad from the surface of mercury (surfaces with various roughness) was investigated on a 120-meter base. The dependences of the specular reflection coefficients on the sliding angles, the energy of the reflected γ-radiation, and the surface roughness found in this experiment correspond to theoretical predictions.

Research paper thumbnail of Yerkurgan, los valles de Surjandarya y Kashkardarya: Surpad, primeros resultados de un proyecto arqueohistórico Hispano-Uzbeko

Research paper thumbnail of Modern models of social partnership in Uzbekistan

Currently, the special importance of social partnership is acknowledged as an effective mechanism... more Currently, the special importance of social partnership is acknowledged as an effective mechanism for involving the general public in participation in the socio-political, socio-economic and cultural life of the country in Uzbekistan. In this regard, the President of the Republic of Uzbekistan Sh.Mirziyoyev pointed out the need for consistent implementation: “the principle of mutual responsibility of citizens, the state and society, the connection of their rights and obligations. This principle serves as the basis for effective interaction between the state and the individual, the state and civil society in solving the important tasks facing our country. This article is devoted to the analysis of reforms aimed at the development of social partnership in Uzbekistan.

Research paper thumbnail of To the Way of Informed Society

International Journal of Recent Technology and Engineering, 2019

The article states that the vital need for information, the formation of the factors that contrib... more The article states that the vital need for information, the formation of the factors that contribute to its satisfaction, play a leading role at every stage of human development. Currently, interest of the international community in the development strategy of Uzbekistan and reform strategy is growing. A few years ago, those who did not properly understand the essence and significance of this development path are now studying it with great care and analyzing the wide-ranging reforms undertaken in the country over the last two or three years. From this point of view it is worth noting the importance of the article. Over the past years in the country, a lot of measures have been taken to liberalize the information sector and to ensure freedom of speech. The legal basis for the activities of mass media has been consistently and systematically improved. At the same time, the experience of foreign legislation and prospects of development of information and communication technologies were...

Research paper thumbnail of Interaction of Electromagnetic Waves with Thin Rotating Cylindrical Shell of Conductor in Vicinity of Weakly Gravitating String

International Journal of Modern Physics D, 2005

The boundary value problem for electromagnetic waves interaction with thin rotating cylindrical s... more The boundary value problem for electromagnetic waves interaction with thin rotating cylindrical shell of conductor in static cylindrical metric with weakly gravitating string has been solved analytically. Influence of line mass density on the string to the process under consideration is studied. It is shown that the increase of line mass density of the string diminishes effect of amplification of cylindrical electromagnetic wave under reflecting off conducting cylindrical rotating body in non-wave zone.

Research paper thumbnail of Makhalla as the Center and the Conductor of Socio-Political Development in Uzbekistan

Theoretical & Applied Science, 2017

Research paper thumbnail of Variational Principles for Constrained Electromagnetic Field and Papapetrou Equation

Research paper thumbnail of Motion of Spin 1/2 Massless Particle in a Curved Spacetime. II. Field Lagrangian Approach

Quasi-classical picture of motion of spin 1/2 massless particle in a curved spacetime is built on... more Quasi-classical picture of motion of spin 1/2 massless particle in a curved spacetime is built on base of simple Lagrangian model. The one is constructed due to analogy with Lagrangian of massive spin 1/2 particle. Equations of motion and spin propagation coincide with Papapetrou equations describing dynamic of photon in a curved spacetime.

Research paper thumbnail of Electromagnetic Field with Constraints and Papapetrou Equation

Zeitschrift für Naturforschung A, 2006

It is shown that a geometric optical description of the electromagnetic wave with respect to its ... more It is shown that a geometric optical description of the electromagnetic wave with respect to its polarization in a curved space-time can be obtained straightforwardly from the classical variational principle for the electromagnetic field. For this purpose the entire functional space of electromagnetic fields must be reduced to its subspace of locally plane monochromatic waves. We have formulated the constraints under which this can be achieved. These constraints introduce variables of another kind which specify a field of local frames associated with the wave. They contain some congruence with null-curves. The Lagrangian for constrained electromagnetic fields contains variables of two kinds, namely a congruence of null-curves and the field itself. This in turn yields two kinds of Euler- Lagrange equations. The equations of the first kind are trivial due to the constraints imposed. The variation of the curves yields the Papapetrou equations for a classical massless particle with heli...

Research paper thumbnail of Investigation of reflection of gamma radiation from the surface

SPIE Proceedings, 2000

The reflection of beam of bremstrahlung gamma radiation from the macroscopically smooth surface h... more The reflection of beam of bremstrahlung gamma radiation from the macroscopically smooth surface has been investigated. First results of the test performed on the base of microtron are presented. Effects of the gamma quanta reflection were observed by inclination of the reflector surface with respect to the beam axis.

Research paper thumbnail of Microwave Study of Influence of Trapped Vortices on Intergrain Weak Links in Eu123 Ceramics

Journal of low …, 2003

The well known low field signal observed in high temperature superconducting (HTS) ceramics by an... more The well known low field signal observed in high temperature superconducting (HTS) ceramics by an ESR spectrometer was used for studying the vortex structure of remanent fields in 123-ceramics. The drastically different behaviors have been observed for the ...

Research paper thumbnail of Motion of Spin 1/2 Massive Particle in a Curved Spacetime

Quasi-classical picture of motion of spin 1/2 massive particle in a curved spacetime is built on ... more Quasi-classical picture of motion of spin 1/2 massive particle in a curved spacetime is built on base of simple Lagrangian model. The one is constructed due to analogy with Lagrangian of massive vector particle. Equations of motion and spin propagation coincide with Papapetrou equations describing dynamic of classical spinning particle in a curved spacetime.

Research paper thumbnail of Motion of a Vector Particle in a Curved Spacetime III: Development of Techniques of Calculations

Modern Physics Letters A, 2006

The studies of influence of spin on a photon's motion in a Schwarzschild spacetime is continu... more The studies of influence of spin on a photon's motion in a Schwarzschild spacetime is continued. In the previous paper13 the first-order correction to the geodesic motion is found for the first half of the photon world line. The system of equations for the first-order correction to the geodesic motion is reduced to a non-uniform linear ordinary differential equation. The equation obtained is solved by the standard method of integration of the Green function.