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Жанр:Прикладные науки. Общие вопросы. Техника (technics_IT)
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141-150 из 190
периодические издания(Журналы)
BURANAY S. C.
Buranay, S. C. Solution of heat equation by a novel implicit scheme using block hybrid preconditioning of the conjugate gradient method [Text] / S. C. Buranay, N. Arshad // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 58-80. - Bibliogr.: p. 77-79 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
The main goal of the study is the approximation of the solution to the Dirichlet boundary value problem (DBVP) of the heat equation on a rectangle by developing a new difference method on a grid system of hexagons
Ключевые слова
heat equation, implicit scheme, hexagonal grid, stability analysis, symmetric positive definite matrix, approximate inverse, incomplete block factorization, block hybrid preconditioning, conjugate gradient method
Казахстаника
0/0 Свободно
периодические издания(Журналы)
SALIM S. H.
Salim, S. H. Solving Volterra-Fredholm integral equations by natural cubic spline function [Text] / S. H. Salim, K. H.F. Jwamer , R. K. Saeed // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 124-130. - Bibliogr.: p. 128-129 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
Using the natural cubic spline function, this paper finds the numerical solution of Volterra-Fredholm integral equations of the second kind
Ключевые слова
Volterra integral equation, Fredholm integral equation, spline function
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BAKYTBEK B.
Bakytbek, B. Solution of the positioning problem for the manipulator based on the mechanism of the third class [Text] / B. Bakytbek, A. Kadyrzhan , V. Kuparov [и др.] // М. Тынышбаев атындағы қазақ көлік және коммуникациялар академиясының хабаршысы (ҚазККА хабаршысы). - 2024. - № 5 (134). - Р. 28-39. - Bibliogr.: р. 37-38 ISSN 1609-1817.
УДК:
62-231.1
Предметная рубрика
- Kinematics of mechanisms
Аннотация
In this work, the workspace and inverse kinematic problems of the third-class RRS manipulator with three degrees of freedom of motion are presented
Ключевые слова
kinematics, third class, RRS mechanism, inverse kinematics problem, mechanism of the third class
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ABDYKADYROV A.
Abdykadyrov, A. Study of the integration of optical and radio waves [Text] / A. Abdykadyrov, N. Smailov , S. Marxuly [et al.] // М. Тынышбаев атындағы қазақ көлік және коммуникациялар академиясының хабаршысы (ҚазККА хабаршысы). - 2024. - № 5 (134). - Р. 350-359. - Bibliogr.: р. 357-358 ISSN 1609-1817.
УДК:
004:54-73
Предметная рубрика
- Wireless communication. Radio waves
Аннотация
This study focuses on the integration of optical and radio wave technologies to explore the synergy between these two typesof electromagnetic radiation for advanced communication systems
Ключевые слова
radio waves, оptical-radio integration, hybrid communication networks , high-speed data transmission, radio-over-fiber technology
Казахстаника
0/0 Свободно
периодические издания(Журналы)
NURLYBAYEVA А. N.
Nurlybayeva, А. N. Synthesis of methacrylic copolymer and its application in paints [Text] / А. N. Nurlybayeva, E. I. Rustem , M. S. Kalmakhanova [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Химия және технология сериясы. - 2022. - № 1 (450). - P. 79-85. - Bibliogr.; p. 85 ISSN 2224-5286.
УДК:
678.744.335
Предметная рубрика
- Polymethylmethacrylate
Аннотация
The present study deals with the physico-mechanical properties of acryl syrups paint, which are made from copolymer powder and MMA-monomer
Ключевые слова
methyl methacrylate, butyl methacrylate, copolymers, рot-life and curing time, сompressive strength, water absorption, метилметакрилат, бутилметакрилат, сополимерлер, сополимеры
Казахстаника
0/0 Свободно
периодические издания(Журналы)
GONGSHUN LIN
Gongshun Lin, Study on damage mechanism of mudstone radiated by high energy laser [Text] / Gongshun Lin Peng Huang Xiaowei Feng // Л.Н. Гумилев атындағы Еуразия ұлттық университетінің хабаршысы. Техникалық ғылымдар және технологиялар сериясы. - 2024. - № 1 (146). - P. 50-56. - Bibliogr.: p. 55 ISSN 2616-7263.
УДК:
622
Предметная рубрика
- Mining
Аннотация
In this paper, high energy laser experiments are carried out on mudstone
Ключевые слова
laser rock breaking technology, brazilian split, SEM, mechanism analysis, mudstone
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KARSAKOVA A.
Karsakova, A. Simulating the process of compacting the railway bed [Text] / A. Karsakova, A. Kadyrov , I. Pak [et al.] // Л.Н. Гумилев атындағы Еуразия ұлттық университетінің хабаршысы. Техникалық ғылымдар және технологиялар сериясы. - 2024. - № 1 (146). - P. 34-49. - Bibliogr.: p. 47 ISSN 2616-7263.
УДК:
625
Предметная рубрика
- Railway construction
Аннотация
The article solves the problem of the interaction between the sealing plate and the railway bed. Numerical results have been obtained in the process of three-dimensional modeling using the finite element method
Ключевые слова
railway bed, loose medium, viscous medium, finite element method, compaction, железнедорожное полотно, теміржол қабаты
Казахстаника
0/0 Свободно
периодические издания(Журналы)
MURATBEKOV B. M.
Muratbekov, B. M. Smelting and research of physical and mechanical properties of invar Fe-Ni-Co which using in critical parts of turbine sites [Text] / B. M. Muratbekov, A. E. Tussupzhanov , N. Kantai [and others] // Шығыстың аймақтық хабаршысы. - 2016. - № 2. - 54-63 р.. - Bibliogr.: 62-63 р.
ISSN 1683-1667.
УДК:
669.15
Предметная рубрика
- Alloys of iron with other elements, except for alloys with one carbon
Аннотация
The article examines the physico-mechanical properties of multifunctional alloys
Ключевые слова
multifunctional alloys, physical properties of alloys, mechanical properties of alloys, alloys, corrosion resistance, phase rotation, microhardness, Invar
Казахстаника
0/0 Свободно
периодические издания(Журналы)
AYDIN A.
Aydın, A. Statistical convergence in vector lattices [Text] / A. Aydın, F. Temizsu // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 4-10. - Bibliogr.: p. 9-10 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
In this paper, the statistical convergence in vector lattices by using the finite additive measures on directed sets have been introduced
Ключевые слова
statistical convergence of nets, order convergence, vector lattice, directed set measure
Казахстаника
0/0 Свободно
периодические издания(Журналы)
RAMAZANOV M. I.
Ramazanov, M. I. Solution of a two-dimensional parabolic model problem in a degenerate angular domain [Text] / M. I. Ramazanov, N. K. Gulmanov , S. S. Kopbalina // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 91-108. - Bibliog.: p. 105-106 ISSN 2518-7929.
УДК:
517.95
Предметная рубрика
- Partial differential equations
Аннотация
In this paper, the boundary value problem of heat conduction in a domain was considered, boundary of which changes with time, as well as there is no the problem solution domain at the initial time, that is, it degenerates into a point
Ключевые слова
heat equation, boundary value problem, degenerate domain, Volterra singular integral equation, regularization
Казахстаника
0/0 Свободно
BURANAY S. C.
SOLUTION OF HEAT EQUATION BY A NOVEL IMPLICIT SCHEME USING BLOCK HYBRID PRECONDITIONING OF THE CONJUGATE GRADIENT METHOD
периодические издания(Журналы)
0/0 Свободно
SALIM S. H.
SOLVING VOLTERRA-FREDHOLM INTEGRAL EQUATIONS BY NATURAL CUBIC SPLINE FUNCTION
периодические издания(Журналы)
0/0 Свободно
BAKYTBEK B.
SOLUTION OF THE POSITIONING PROBLEM FOR THE MANIPULATOR BASED ON THE MECHANISM OF THE THIRD CLASS
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
NURLYBAYEVA А. N.
SYNTHESIS OF METHACRYLIC COPOLYMER AND ITS APPLICATION IN PAINTS
периодические издания(Журналы)
0/0 Свободно
GONGSHUN LIN
STUDY ON DAMAGE MECHANISM OF MUDSTONE RADIATED BY HIGH ENERGY LASER
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
MURATBEKOV B. M.
SMELTING AND RESEARCH OF PHYSICAL AND MECHANICAL PROPERTIES OF INVAR FE-NI-CO WHICH USING IN CRITICAL PARTS OF TURBINE SITES
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
RAMAZANOV M. I.
SOLUTION OF A TWO-DIMENSIONAL PARABOLIC MODEL PROBLEM IN A DEGENERATE ANGULAR DOMAIN
периодические издания(Журналы)
0/0 Свободно