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Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
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141-150 of 192
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
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
Keywords
heat equation, implicit scheme, hexagonal grid, stability analysis, symmetric positive definite matrix, approximate inverse, incomplete block factorization, block hybrid preconditioning, conjugate gradient method
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
Using the natural cubic spline function, this paper finds the numerical solution of Volterra-Fredholm integral equations of the second kind
Keywords
Volterra integral equation, Fredholm integral equation, spline function
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
62-231.1
Subject headings
- Kinematics of mechanisms
Annotation
In this work, the workspace and inverse kinematic problems of the third-class RRS manipulator with three degrees of freedom of motion are presented
Keywords
kinematics, third class, RRS mechanism, inverse kinematics problem, mechanism of the third class
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
004:54-73
Subject headings
- Wireless communication. Radio waves
Annotation
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
Keywords
radio waves, оptical-radio integration, hybrid communication networks , high-speed data transmission, radio-over-fiber technology
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
678.744.335
Subject headings
- Polymethylmethacrylate
Annotation
The present study deals with the physico-mechanical properties of acryl syrups paint, which are made from copolymer powder and MMA-monomer
Keywords
methyl methacrylate, butyl methacrylate, copolymers, рot-life and curing time, сompressive strength, water absorption, метилметакрилат, бутилметакрилат, сополимерлер, сополимеры
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
622
Subject headings
- Mining
Annotation
In this paper, high energy laser experiments are carried out on mudstone
Keywords
laser rock breaking technology, brazilian split, SEM, mechanism analysis, mudstone
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
625
Subject headings
- Railway construction
Annotation
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
Keywords
railway bed, loose medium, viscous medium, finite element method, compaction, железнедорожное полотно, теміржол қабаты
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
669.15
Subject headings
- Alloys of iron with other elements, except for alloys with one carbon
Annotation
The article examines the physico-mechanical properties of multifunctional alloys
Keywords
multifunctional alloys, physical properties of alloys, mechanical properties of alloys, alloys, corrosion resistance, phase rotation, microhardness, Invar
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
In this paper, the statistical convergence in vector lattices by using the finite additive measures on directed sets have been introduced
Keywords
statistical convergence of nets, order convergence, vector lattice, directed set measure
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.95
Subject headings
- Partial differential equations
Annotation
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
Keywords
heat equation, boundary value problem, degenerate domain, Volterra singular integral equation, regularization
Kazakhstan
0/0 Free
BURANAY S. C.
SOLUTION OF HEAT EQUATION BY A NOVEL IMPLICIT SCHEME USING BLOCK HYBRID PRECONDITIONING OF THE CONJUGATE GRADIENT METHOD
periodical press (Magazines)
0/0 Free
SALIM S. H.
SOLVING VOLTERRA-FREDHOLM INTEGRAL EQUATIONS BY NATURAL CUBIC SPLINE FUNCTION
periodical press (Magazines)
0/0 Free
BAKYTBEK B.
SOLUTION OF THE POSITIONING PROBLEM FOR THE MANIPULATOR BASED ON THE MECHANISM OF THE THIRD CLASS
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
NURLYBAYEVA А. N.
SYNTHESIS OF METHACRYLIC COPOLYMER AND ITS APPLICATION IN PAINTS
periodical press (Magazines)
0/0 Free
GONGSHUN LIN
STUDY ON DAMAGE MECHANISM OF MUDSTONE RADIATED BY HIGH ENERGY LASER
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
MURATBEKOV B. M.
SMELTING AND RESEARCH OF PHYSICAL AND MECHANICAL PROPERTIES OF INVAR FE-NI-CO WHICH USING IN CRITICAL PARTS OF TURBINE SITES
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
RAMAZANOV M. I.
SOLUTION OF A TWO-DIMENSIONAL PARABOLIC MODEL PROBLEM IN A DEGENERATE ANGULAR DOMAIN
periodical press (Magazines)
0/0 Free