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Articles 1 - 23 of 23
Full-Text Articles in Physical Sciences and Mathematics
Kendali Model Prediktif Kokoh Pada Model Suhu Rumah Kaca, Ratna Widayati, Sholikhatun Sholikhatun, Noorma Yulia Megawati
Kendali Model Prediktif Kokoh Pada Model Suhu Rumah Kaca, Ratna Widayati, Sholikhatun Sholikhatun, Noorma Yulia Megawati
PYTHAGORAS : Jurnal Matematika dan Pendidikan Matematika
Dalam paper ini dibahas mengenai masalah sistem kendali suhu rumah kaca dengan mempertimbangkan variabel gangguan. Masalah kendali suhu rumah kaca ini dimodelkan dengan RMPC (Robust Model Predictive Control). Algoritma Particle Swarm Optimization (PSO) dan Genetic Algortihm (GA) digunakan untuk mencari penyelesaian masalah RMPC pada sistem suhu rumah kaca yang berupa masalah optimisasi berkendala. Berdasarkan hasil simulasi, teknik kendali RMPC mampu mengatur suhu rumah kaca sesuai suhu yang diinginkan dengan gangguan relatif kecil yaitu sebesar 0.09oC. Selain itu, waktu iterasi Algoritma PSO lebih cepat dalam menyelesaikan masalah RMPC pada sistem suhu rumah kaca dibandingkan dengan Algoritma Genetika.
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
Optimization Of The Estimation Of Initial Perturbations In Linear Differential Systems, A Kojametov
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.
Solution Of Systems Of Linear Algebraic Equations By Modified Methods Of Paired Gradients, Amanbay Otarov
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.
Optimization Of The Estimation Of Initial Perturbations In Linear Differential Systems, A Kojametov
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.
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
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.
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
Modification Of Sio2-B2o3-Na2o System With Cao, Mg Phenate Bao Oxides And Their Properties., Z. K. Babaev, Sh. K. Matchanov, D. Buranova
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%
Effect Of Sowing Dates On Biometric Parametrs Of “Grom” Cultivar Of Winter Wheat In Khorezm Region, L. A. Gandjaeva
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
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.
Book Review: Fermat's Enigma By Simon Singh, Matthew Becker
Book Review: Fermat's Enigma By Simon Singh, Matthew Becker
Humanistic Mathematics Network Journal
No abstract provided.
Base And Subbase In A Number System, Walter S. Sizer
Base And Subbase In A Number System, Walter S. Sizer
Humanistic Mathematics Network Journal
No abstract provided.
Are You A Quantitative Or Qualitative Runner?: 5.13 Miles And Rosemary-Lilac Shampoo, Shelly Sheats Harkness
Are You A Quantitative Or Qualitative Runner?: 5.13 Miles And Rosemary-Lilac Shampoo, Shelly Sheats Harkness
Humanistic Mathematics Network Journal
No abstract provided.