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Articles 31 - 60 of 60

Full-Text Articles in Physical Sciences and Mathematics

Investigation Of The Pressed Grunt Cement Blocks, A,A Tulaganov, I.M Hadjiev, E.D Ismailov Dec 2018

Investigation Of The Pressed Grunt Cement Blocks, A,A Tulaganov, I.M Hadjiev, E.D Ismailov

Central Asian Problems of Modern Science and Education

In order to increase the strength and seismicity of the traditional grunt cement blocks, the grunt cement block is proposed to be pressed together with fiber waste and data on the study of grunt cement blocks made from local raw materials are provided.

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Cyclic Surfaces In The Pseudoevklit Region, B.M Sultanov, Sh,Sh Ismailov Dec 2018

Cyclic Surfaces In The Pseudoevklit Region, B.M Sultanov, Sh,Sh Ismailov

Central Asian Problems of Modern Science and Education

The article describes the hypothesis of the cyclic surface determined in the Galileo domain, the smallest dimensional pseudo-squid space, which is summarized in the five-dimensional two-indexed pseudo-squidoid space and then on the full cyclic surface. Full-scale surfaces have been proven to be in the four-dimensional pseudo-squidoid phase.

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Soliton Mechanism Of Charge Transport In Branched Conducting Polymers And Verification Of Conservation Laws, H. Sh. Matyokubov, D. B. Babajanov Dec 2018

Soliton Mechanism Of Charge Transport In Branched Conducting Polymers And Verification Of Conservation Laws, H. Sh. Matyokubov, D. B. Babajanov

Central Asian Problems of Modern Science and Education

In this work we consider the modeling of charge transport processes in branched conducting polymers and verification of conservation laws, such as energy and charge conservation.

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Investigation Of The Accuracy Of The Installation Of Cylindrical Spur Gears When Machining With Rolling Tools In The Conditions Of Nmp Mu Nmmc, B. T. Mardonov Sep 2018

Investigation Of The Accuracy Of The Installation Of Cylindrical Spur Gears When Machining With Rolling Tools In The Conditions Of Nmp Mu Nmmc, B. T. Mardonov

Central Asian Problems of Modern Science and Education

For the production conditions of the NMP MU, it is very important to study the accuracy of the settings of the gear blanks on the tool holders. Therefore, the article considers the issue of studying the accuracy of the installation of gears in the factory and improving the accuracy of the installation through the use of biaxial shaft-hole joints

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Study Of Copper-Polymer Complexes And Their Production, A. A. Sarimksakov, S. Sh. Rashidova, M. M. Baltaeva, Kh. O. Eshchanov Sep 2018

Study Of Copper-Polymer Complexes And Their Production, A. A. Sarimksakov, S. Sh. Rashidova, M. M. Baltaeva, Kh. O. Eshchanov

Central Asian Problems of Modern Science and Education

The article presents the process of obtaining the copper-polymer complex by a dry mechanochemical method

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Mathematical Modelling Of Blood Flow, O. V. P. Joao, N. J. Khujatov Sep 2018

Mathematical Modelling Of Blood Flow, O. V. P. Joao, N. J. Khujatov

Central Asian Problems of Modern Science and Education

The paper presents the two-phase model to describe blood flow in large and in small blood vessels. Based on this model the study gives an explanation for long known features (effects) of blood flow in the vessels: dependence of the hematocrit (packed cell volume) on the diameter of the vessel, existence of cell-free plasma layer near the vessel wall, obtuse (as compared with the profile of Poiseuille flow) velocity profile of a blood; dependence of the blood viscosity on the diameter of the vessel. The researcher determines dependences of the blood rate and viscosity on the diameter of a blood …

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The Use Of New Raw Materials And Technogenes In The Synthesis Of Decorative-Facing Glasses, M. Yu. Yunusov Jun 2018

The Use Of New Raw Materials And Technogenes In The Synthesis Of Decorative-Facing Glasses, M. Yu. Yunusov

Central Asian Problems of Modern Science and Education

The article describes modern requirements for quartz sand raw materials used in glass bottles, and describes the major deposits of quartz sand in Uzbekistan. It is possible to improve the quality of the first quartz sand samples on the production of high quality glass bottles with the addition of sand drying and sharp cooling at the temperature of 750-800 ° C, resulting in the formation of sand fracture surfaces, 0. Quartz sands, with a content of iron oxides in the range of 4-0.1 mm (0.04-0.03%). The possibility of using quartz-feldspar sand of the Yangiarik field and defecate-waste of OS "Khorazmshakar" …

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Angular And Energy Distributions Of Low-Energy Argon Ions At The Scattering From Aiiib V Semiconductor Surface, M. K. Karimov, I. U. Tangriberganov, M. K. Qurbanov, K. O. Kutliev Jun 2018

Angular And Energy Distributions Of Low-Energy Argon Ions At The Scattering From Aiiib V Semiconductor Surface, M. K. Karimov, I. U. Tangriberganov, M. K. Qurbanov, K. O. Kutliev

Central Asian Problems of Modern Science and Education

The Ar+ ions scattering from the InP(001), surfaces at the grazing incidence have been simulated by the computer simulation method. The trajectory, energy and angular distributions of scattered argon ions on above mentioned surface semichannels have been calculated

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Problems And Solutions For Usage Foreign Exchanges Of Rice Plantingin In Uzbekistan Conditions, F. Kh. Mavlanov, Sh. A. Yusupov Jun 2018

Problems And Solutions For Usage Foreign Exchanges Of Rice Plantingin In Uzbekistan Conditions, F. Kh. Mavlanov, Sh. A. Yusupov

Central Asian Problems of Modern Science and Education

The article presents the problem arising when using foreign seeding units in Uzbekistan.The requirements for foreign planting units that were compared with the conditions of Uzbekistan and their solutions are also shown.

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Spirt Manufacturing From Melassa, S. U. Xudayberganov Jun 2018

Spirt Manufacturing From Melassa, S. U. Xudayberganov

Central Asian Problems of Modern Science and Education

This article highlights the importance of qualified staff in the sustainable and successful development of the alcohol industry and the high level of knowledge, experience and experience of the staff in the quality of the alcohol products.

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Scientific And Methodical Aspects Of Measuring The Gravitational Constant In The Educational Laboratories Of The Physical Practice In Mechanics, Bakhtiyar Abdikamalov Jun 2018

Scientific And Methodical Aspects Of Measuring The Gravitational Constant In The Educational Laboratories Of The Physical Practice In Mechanics, Bakhtiyar Abdikamalov

Karakalpak Scientific Journal

The results of measuring the gravitational constant in the laboratory of physical practicum on mechanics with the help of torsion balance. Based upon through analysis of experimental data obtained for the gravitational constant, the value G = 6,67621∙10^(-11) м^3/(кг∙с) was obtained.

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Optimization Of The Estimation Of Initial Perturbations In Linear Differential Systems, A Kojametov Jun 2018

Optimization Of The Estimation Of Initial Perturbations In Linear Differential Systems, A Kojametov

Karakalpak Scientific Journal

The article deals with constant coefficients of differential system, for this purpose the function of Lyapunova has been used.

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Solution Of Systems Of Linear Algebraic Equations By Modified Methods Of Paired Gradients, Amanbay Otarov Jun 2018

Solution Of Systems Of Linear Algebraic Equations By Modified Methods Of Paired Gradients, Amanbay Otarov

Karakalpak Scientific Journal

The article deals with several modifications of the method of conjugate gradients for solving systems of linear algebraic equations are carried out in the article, and the application of some of them is illustrated with the solution of a given system of equations.

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Some Chemical, Physical And Physical And Chemical Properties Of High-Mountain Soils Of The Turkestan Ridge, M Tashkuziev Jun 2018

Some Chemical, Physical And Physical And Chemical Properties Of High-Mountain Soils Of The Turkestan Ridge, M Tashkuziev

Karakalpak Scientific Journal

In the article on the basis of obtained results is revealed the relationship between humus content and composition of carbonates, the mechanical composition, the exchange capacity, and the composition of the absorbed bases.

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Optimization Of The Estimation Of Initial Perturbations In Linear Differential Systems, A Kojametov Jun 2018

Optimization Of The Estimation Of Initial Perturbations In Linear Differential Systems, A Kojametov

Karakalpak Scientific Journal

The article deals with constant coefficients of differential system, for this purpose the function of Lyapunova has been used.

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Algorithms For Numerical Implementation Of The Shooting Method Of The Boundary Solution Problems For Ordinary Second-Order Differential Equations, A. Otarov Professor, Kh. Umarova, S. Karabekov Mar 2018

Algorithms For Numerical Implementation Of The Shooting Method Of The Boundary Solution Problems For Ordinary Second-Order Differential Equations, A. Otarov Professor, Kh. Umarova, S. Karabekov

Karakalpak Scientific Journal

In the article algorithms of numerical realization of a shooting method decisions of marginal problems for nonlinear ordinary differential equations of the second order are under construction.

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The Model Of Operational Control Of The Production Process In Cotton Processing Enterprise, F. Yusupov Mar 2018

The Model Of Operational Control Of The Production Process In Cotton Processing Enterprise, F. Yusupov

Central Asian Problems of Modern Science and Education

Mathematical formalization of the test process is reduced to the construction of the static model of operational control of technological progress of the primary processing of raw cotton, thus it is considered a fixed process parameters and usage of digital technological modes

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Kicked Particle Transport In Armchair Graphene Nanoribbons, D. B. Babajanov, H. Sh. Matyokubov Mar 2018

Kicked Particle Transport In Armchair Graphene Nanoribbons, D. B. Babajanov, H. Sh. Matyokubov

Central Asian Problems of Modern Science and Education

In this paper we discuss the study of charge transport in an armchair graphene nanoribbon drivenby an external time-periodic kicking potential

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Development Of Structure Of Ceramic Brick With Regard To Environmental Factors, Z. K. Babayev, Z. B Djumaniyazov, Y. X. Yaqubov, E. X. Xudayberganov Mar 2018

Development Of Structure Of Ceramic Brick With Regard To Environmental Factors, Z. K. Babayev, Z. B Djumaniyazov, Y. X. Yaqubov, E. X. Xudayberganov

Central Asian Problems of Modern Science and Education

Preliminary studies have established that the process of burning ceramic bricks containing coke-fines as burn-in additives proceeds much faster, with minimal energy expenditure than the traditional method. Also, under these conditions, it is established that the coke fines serve as a reducing agent and accompanies the decomposition of difficult to decompose salts (Na2SO4, CaSO4), which eliminates such negative phenomena as high education. The reducing medium also positively influences the reduction of iron oxides (Fe2+ to Fe+ ) contained in loess-like loam, the chemical ratio of which is Fe+ more active than Fe2+, which predetermines the acceleration of the formation of …

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Model Of Optimization Of Technological Regimes Of Oilextraction Production For The Minimum Costs, G. Kh. Abdullayeva Mar 2018

Model Of Optimization Of Technological Regimes Of Oilextraction Production For The Minimum Costs, G. Kh. Abdullayeva

Central Asian Problems of Modern Science and Education

In the stochastic manufacturing process conditions and classification of end products of oil extraction production by intersecting quality areas, manufacturing costs can be reduced by varying the values for the number of modes and their coordinates. 25 Built in the model optimization mode technology is designed to surround the purposes of (current) planning production of oil extraction enterprise products

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The Research Results Of Dehydration Process Of Gossypol Resin, Sh. R. Kurambaev, Sh. K. Aitova, A. I. Ermetov Mar 2018

The Research Results Of Dehydration Process Of Gossypol Resin, Sh. R. Kurambaev, Sh. K. Aitova, A. I. Ermetov

Central Asian Problems of Modern Science and Education

This article is focused on the results of dehydration process of the oil and fat waste products- gossypol. The research was held in the temperature interval from room temperature until 160 degrees Celsius while constant shuffling

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Researches Of Process Of Reception Of Anticorrosive Materials And Building Bitumens On The Basis Of Gossipol Resin, Sh. R. Kurambaev, Sh. K. Aitova, M. J. Jumaniyazov, A. I. Ermetov Mar 2018

Researches Of Process Of Reception Of Anticorrosive Materials And Building Bitumens On The Basis Of Gossipol Resin, Sh. R. Kurambaev, Sh. K. Aitova, M. J. Jumaniyazov, A. I. Ermetov

Central Asian Problems of Modern Science and Education

The article presents the results of research of technological processes of anticorrosive coatings and substitute petroleum bitumen based on gossipol resin from waste oil and fat plants

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Modification Of Sio2-B2o3-Na2o System With Cao, Mg Phenate Bao Oxides And Their Properties., Z. K. Babaev, Sh. K. Matchanov, D. Buranova Mar 2018

Modification Of Sio2-B2o3-Na2o System With Cao, Mg Phenate Bao Oxides And Their Properties., Z. K. Babaev, Sh. K. Matchanov, D. Buranova

Central Asian Problems of Modern Science and Education

Тhe effect of alkaline earth oxides on the physicochemical properties of easy-melting vitreous enamels for architectural and building products are studied. It was established that with the increase of ionic radions of the elements of modifier introduced into the vitreous decreases the viscosity of the molten glass. Also, the dependence of surface tension on the vitreous content of alkaline earth oxides is increased while output modifiers limits up to 20%

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Effect Of Sowing Dates On Biometric Parametrs Of “Grom” Cultivar Of Winter Wheat In Khorezm Region, L. A. Gandjaeva Mar 2018

Effect Of Sowing Dates On Biometric Parametrs Of “Grom” Cultivar Of Winter Wheat In Khorezm Region, L. A. Gandjaeva

Central Asian Problems of Modern Science and Education

The aim of our research is based on the study of the effect of different sowing dates on biometric parameters of Grom cultivar of winter wheat. The experiment was conducted on the field №119 of the Dildora-Bojimon farm of Yangibazar district of the Khorezm region during 2013-2014. Statistical analysis of the data showed that different sowing dates had a significantly affected on plant height (cm), number of total tillers and number of productive tillers m-2 of winter wheat

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Algorithms For Numerical Implementation Of The Shooting Method Of Solving Boundary Value Problems For Second Order Differential Equations, A Otarov Mar 2018

Algorithms For Numerical Implementation Of The Shooting Method Of Solving Boundary Value Problems For Second Order Differential Equations, A Otarov

Karakalpak Scientific Journal

In the article algorithms of numerical realization of a shooting method decisions of marginal problems for nonlinear ordinary differential equations of the second order are under construction.

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Influence Of Long Defects On The Photoluminescent Properties Of Znte / Gaas Epitaxial Films, M Sharibaev Mar 2018

Influence Of Long Defects On The Photoluminescent Properties Of Znte / Gaas Epitaxial Films, M Sharibaev

Karakalpak Scientific Journal

luminescence, reflection, epitaxial films.

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Pox And The City, Elizabeth S. Goins Sep 2013

Pox And The City, Elizabeth S. Goins

Journal of Interactive Humanities

Pox in the City is a prototype of a social history game that focuses on the medical profession circa 1800 in Edinburgh. The prototype was research, designed and developed on a small budget (about $17,000) and in a short time frame (20 weeks). The experimental design goal was to create a narrative driven educational game that was engaging and delivered some basic educational goals to be used in the high school and college level classrooms. To experiment with writing historic game narrative and to stay within budget, the design was built around a point and click adventure framework. Narrative was …

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Book Review: Fermat's Enigma By Simon Singh, Matthew Becker Jan 2004

Book Review: Fermat's Enigma By Simon Singh, Matthew Becker

Humanistic Mathematics Network Journal

No abstract provided.

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Base And Subbase In A Number System, Walter S. Sizer Jan 2004

Base And Subbase In A Number System, Walter S. Sizer

Humanistic Mathematics Network Journal

No abstract provided.

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Are You A Quantitative Or Qualitative Runner?: 5.13 Miles And Rosemary-Lilac Shampoo, Shelly Sheats Harkness Jan 2004

Are You A Quantitative Or Qualitative Runner?: 5.13 Miles And Rosemary-Lilac Shampoo, Shelly Sheats Harkness

Humanistic Mathematics Network Journal

No abstract provided.

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