Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Mathematical model (3)
- Moisture (2)
- Optimization (2)
- Process (2)
- Quartz sand (2)
-
- Yarn (2)
- Accuracy (1)
- Aggregate (1)
- Alcohol (1)
- Algorithmization (1)
- Alkali earth metals (1)
- Amirabad (1)
- An electronhole (1)
- Anticorrosive materials (1)
- Archeology (1)
- Automobile road (1)
- Band structure (1)
- Bitumen (1)
- Block (1)
- Boiling (1)
- Branched conducting polymer (1)
- Breakage (1)
- Breaking load (1)
- Bulk material (1)
- Calcium oxide and hexamethylenetetramine (1)
- Camera (1)
- Capacitance (1)
- Carbon dioxide (1)
- Ceramic brick (1)
- Charged solitons (1)
Articles 1 - 30 of 32
Full-Text Articles in Physical Sciences and Mathematics
Cauchy Inequality And Its Applications, Z.Sh Ibragimov, J.U Xujamov, N.J Khujatov
Cauchy Inequality And Its Applications, Z.Sh Ibragimov, J.U Xujamov, N.J Khujatov
Central Asian Problems of Modern Science and Education
This paper shows the application of Cauchy inequality to some complex geometric and algebraic problems. Proof of Cauchy inequality is presented in several ways. Furthermore, the generalized Koshi inequality is fully proven.
The Modern Methods Of Using Alternative Energy Sources, U. Mirzayev, J. T. Tulakov Jakhongir Turakul Ugl
The Modern Methods Of Using Alternative Energy Sources, U. Mirzayev, J. T. Tulakov Jakhongir Turakul Ugl
Central Asian Problems of Modern Science and Education
At present, much attention is paid to the use of solar energy. Solar energy, in addition to traditional energy, is ecologically clean while changing. The rarity and the rising cost of fuel is one of the main problems of the scientific technique, which is the acquisition of infinite resources of solar energy. Further research and experiments on the use of solar energy, as well as the use of solar power plants in a number of countries, shows that solar energy can be widely used today based on modern technical capacities
Research Of Processes Of Implantation Of Ions In Monocrystal Gaas (001) On Purpose Increase In Efficiency Of Solar Elements, I. I. Khafizov, K. K. Gafforov
Research Of Processes Of Implantation Of Ions In Monocrystal Gaas (001) On Purpose Increase In Efficiency Of Solar Elements, I. I. Khafizov, K. K. Gafforov
Central Asian Problems of Modern Science and Education
On purpose increase efficiency of solar elements it has been investigated process of ionic implantation influencing the big number of the interconnected coefficients, most important of which is target orientation, a grade, initial energy and a corner of falling of primary particles
Basic Parameters Of Physical Properties Of The Saline Soils In Roadside Of Highways, A. D. Kayumov Abdubaki Djalilovic, O.Z. Zafarov, N. D. Saidbaxromova
Basic Parameters Of Physical Properties Of The Saline Soils In Roadside Of Highways, A. D. Kayumov Abdubaki Djalilovic, O.Z. Zafarov, N. D. Saidbaxromova
Central Asian Problems of Modern Science and Education
This article provides information about the basic parameters of physical properties of the saline soils in roadside of highways, the key and rational indicators which are determined by the experiments and by calculating respectively in the evaluation of soil physical states, the density of solid particles, the basic parameters of density and moisture of the soil in natural condition
The First Stages Of Communication Service Formation In Uzbekistan (In The Case Of Khorezm), I. S. Yusupov
The First Stages Of Communication Service Formation In Uzbekistan (In The Case Of Khorezm), I. S. Yusupov
Central Asian Problems of Modern Science and Education
This article describes the emergence and development of communication services in ancient times in Khorezm, northwest of Uzbekistan
The Impact Of Automobile Tires On The Environment From The Period Of Raw Materials To The Disposal Of Them, K. G. Karimova
The Impact Of Automobile Tires On The Environment From The Period Of Raw Materials To The Disposal Of Them, K. G. Karimova
Central Asian Problems of Modern Science and Education
In this article, all stages on the life cycle of automobile tires and technical ISO standards are used to assess. One of the life cycle of the use of tires, this time allocated to chemical and mechanical connections. Developing countries account the amount of tires in the press and processing methods, as well as used tires on the environment and human health impact of information.
Increase Of The Learning Efficiency On The Basis Of Structurization The Maintenance Of The Theme Of Algorithmization And Programming Linear Computing Processes, D. F. Yusupov
Central Asian Problems of Modern Science and Education
The purpose of the study is to address the question of what should be a set of modern information and communication technologies in the teaching of 37 specific subjects on the basis of structuring the discipline that would ensure improvement of the quality of professional, targeted (industry based) education through the creation and implementation of complex software and teaching and teaching methodical
Analysis Of Design Peculiarities Of Preventive Shoes For Diabetics, A.J Djuraevich, A.A Khaydarov, M.O Muhammedova
Analysis Of Design Peculiarities Of Preventive Shoes For Diabetics, A.J Djuraevich, A.A Khaydarov, M.O Muhammedova
Central Asian Problems of Modern Science and Education
Quality shoes are fundamental to affecting the health of the feet, in particular, when the foot can be subjected to many serious problems, as is the case with diabetes patients. This article identifies, identifies and analyzes the problems of correct design of shoes for people suffering from diabetes, and design features that distinguish orthopedic shoes from other types of shoes.
Determination Of The Influence Of Spin-Off Roundess On The Value Of Spinning Yarn During Spinning, S.X Babadjanov, F.F Isxakova
Determination Of The Influence Of Spin-Off Roundess On The Value Of Spinning Yarn During Spinning, S.X Babadjanov, F.F Isxakova
Central Asian Problems of Modern Science and Education
The article presents the results of studies of the influence of the unevenness of roundness of the spinning rings on the tension of the yarn produced. It is also noted that if the shape of the ring is distorted, then the slider's trajectory is not a circle, but some closed curve that follows the shape of the ring, while, in general, at each subsequent time, the slider moves along a curve with a different curvature radius. The design scheme and the method for calculating the tension of the yarn from the profile of the ring are given.
Investigation Of The Impact Of The Rotation Frequency Of The Discretizing Drum On The Physical And Mechanical Properties Of, Sh.A Korabayev, S.L Matismailov, J.Z Salohiddinov
Investigation Of The Impact Of The Rotation Frequency Of The Discretizing Drum On The Physical And Mechanical Properties Of, Sh.A Korabayev, S.L Matismailov, J.Z Salohiddinov
Central Asian Problems of Modern Science and Education
This article presents the research results of the rotation frequency influence of a pneumatic spinning machine’s drum on the quality indicators of the yarn produced with a linear density of 29 tex. With the rotation frequency increase of the sampling drums, the specific breaking load of the yarn increases to 11.1 cN / tex, elongation to 6.3%, while reducing the coefficient of variation of the breaking load to 9.2%.
Study Of Cotton Drying Device Technologies, R.X Rasulov, D.V Norbayeva
Study Of Cotton Drying Device Technologies, R.X Rasulov, D.V Norbayeva
Central Asian Problems of Modern Science and Education
In cotton ginning cotton processing technologies, the cleaning of raw cotton is a very important process. In the operated purifiers a low purifying effect, in order to increase the cleaning effect, it is required to modernize the working elements of the cleaner. For this, it is necessary to study the process between the serrated drum and the grate. The obtained results can improve the technology of cleaning machines. Studies have determined the change in the purification process
About Wavefunctions In Low-Dimensional Semiconductors, B Akhmedov, J Rozikov, I Muminov, V Ruziboev
About Wavefunctions In Low-Dimensional Semiconductors, B Akhmedov, J Rozikov, I Muminov, V Ruziboev
Central Asian Problems of Modern Science and Education
The impressive progress in the fabrication of low-dimensional semiconductor structures during the past two decades has made it possible to reduce the effective device dimension from three-dimensional bulk materials, to quasi-two dimensional quantum well systems, to quasi-one dimensional quantum wires, and even to quasi-zero dimensional quantum dots. In this article we discussed about wave function in these structures.
Shock-Absorbing Vibrations Of The Elastic Elastomeric End Of The Rotary Inertia, N.J Khujatov, N.I Abdikarimov
Shock-Absorbing Vibrations Of The Elastic Elastomeric End Of The Rotary Inertia, N.J Khujatov, N.I Abdikarimov
Central Asian Problems of Modern Science and Education
The problem of the longitudinal vibrations of the elastic strerin of the longitudinal impact of the second free end of the end of the tape is settled on the basis of the second order (classic) differential equation. Depending on the nature of stroke endings and the nature and conditions of the impact, the initial and boundary conditions of the problem were found. To solve the problem, a structured block scheme was created, using a duplicate scheme. Created a structured block-scheme based on "Pascal" and the results were obtained.
Intercapacitance Between Two Charges Located In The Different Environments, A.E Abdikarimov, A Yusupov, A.E Atamuratov
Intercapacitance Between Two Charges Located In The Different Environments, A.E Abdikarimov, A Yusupov, A.E Atamuratov
Central Asian Problems of Modern Science and Education
It is investigated the dependence of intercapacitance between two point charges located in different environments on the relative position of border. The image method is used. It is considered two cases: the charges is located at line which is perpendicular to the border and the charges is located at line which is not perpendicular to the border. The result show that in both cases the capacitance is increased with displacement the border.
Investigation Of The Pressed Grunt Cement Blocks, A,A Tulaganov, I.M Hadjiev, E.D Ismailov
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.
Cyclic Surfaces In The Pseudoevklit Region, B.M Sultanov, Sh,Sh Ismailov
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.
Soliton Mechanism Of Charge Transport In Branched Conducting Polymers And Verification Of Conservation Laws, H. Sh. Matyokubov, D. B. Babajanov
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.
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
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
Study Of Copper-Polymer Complexes And Their Production, A. A. Sarimksakov, S. Sh. Rashidova, M. M. Baltaeva, Kh. O. Eshchanov
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
Mathematical Modelling Of Blood Flow, O. V. P. Joao, N. J. Khujatov
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 …
The Use Of New Raw Materials And Technogenes In The Synthesis Of Decorative-Facing Glasses, M. Yu. Yunusov
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" …
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
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
Problems And Solutions For Usage Foreign Exchanges Of Rice Plantingin In Uzbekistan Conditions, F. Kh. Mavlanov, Sh. A. Yusupov
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.
Spirt Manufacturing From Melassa, S. U. Xudayberganov
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.
The Model Of Operational Control Of The Production Process In Cotton Processing Enterprise, F. Yusupov
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
Kicked Particle Transport In Armchair Graphene Nanoribbons, D. B. Babajanov, H. Sh. Matyokubov
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
Development Of Structure Of Ceramic Brick With Regard To Environmental Factors, Z. K. Babayev, Z. B Djumaniyazov, Y. X. Yaqubov, E. X. Xudayberganov
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 …
Model Of Optimization Of Technological Regimes Of Oilextraction Production For The Minimum Costs, G. Kh. Abdullayeva
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
The Research Results Of Dehydration Process Of Gossypol Resin, Sh. R. Kurambaev, Sh. K. Aitova, A. I. Ermetov
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
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
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