Electronic catalog
Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
language:English
publication type:periodical press (Magazines)
catalogue:Articles
Search result:
31-40 of 150
periodical press (Magazines)
BASHEYEVA A. O.
Basheyeva, A. O. On quasi-identities of finite modular lattices. II [Text] / A. O. Basheyeva, S. M. Lutsak // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 45-52. - Bibliogr.: p. 50-51 ISSN 2518-7929.
UDC:
512.57
Subject headings
- Universal algebras
Annotation
The main goal of the paper is to present a finite modular lattice that has no finite basis of quasiidentities and does not satisfy conditions of Tumanov’s theorem
Keywords
lattice, finite lattice, modular lattice, quasivariety, quasi-identity, finite basis of quasi-identities, Tumanov’s conditions
Kazakhstan
0/0 Free
periodical press (Magazines)
MANAT A. M.
Manat, A. M. On one approximate solution of a nonlocal boundary value problem for the Benjamin-Bona-Mahony equation [Text] / A. M. Manat, N. T. Orumbayeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 84-92. - Bibliogr.: p. 90-92 ISSN 2518-7929.
UDC:
517.95
Subject headings
- Partial differential equations
Annotation
The paper investigates a non-local boundary value problem for the Benjamin-Bona-Mahony equation
Keywords
Benjamin-Bona-Mahony equation, algorithm, approximate solution, partial differential equation, nonlinear equation
Kazakhstan
0/0 Free
periodical press (Magazines)
AISAGALIEV S.
Aisagaliev, S. Controllability and optimal speed-in-action of linear systems with boundary conditions [Text] / S. Aisagaliev, G. T. Korpebay // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 21-34. - Bibliogr.: 32 ISSN 2518-7929.
UDC:
517.968.2
Subject headings
- Linear integral equations
Annotation
The paper proposes a method for solving the problem of optimal performance for linear systems of ordinary differential equations in the presence of phase and integral restrictions, when the initial and final states of the system are elements of given convex closed sets, taking into account the control value restriction
Keywords
optimal performance, integrity constraints, functional gradient, integral equation, linear systems
Kazakhstan
0/0 Free
periodical press (Magazines)
DEKHKONOV F. N.
Dekhkonov, F. N. Boundary control problem for the heat transfer equation associated with heating process of a rod [Text] / F. N. Dekhkonov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 63-71. - Bibliogr.: p. 69-70 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
In this paper, we consider a boundary control problem for a parabolic equation in a segment
Keywords
Heat conduction equation, system of integral equations, initial-boundary value problem, Laplace transform, integral equation
Kazakhstan
0/0 Free
periodical press (Magazines)
ADIL N.
Adil, N. Spectral properties of local and nonlocal problems for the diffusion-wave equation of fractional order [Text] / N. Adil, A. S. Berdyshev // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 4-20. - Bibliogr.: p. 16-18 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
The paper investigates the issues of solvability and spectral properties of local and nonlocal problems for the fractional order diffusion-wave equation
Keywords
diffusion-wave equations, fractional order equations, boundary value problems, strong solution, Volterra property, eigenvalue
Kazakhstan
0/0 Free
periodical press (Magazines)
KASSENOV A. ZH.
Kassenov, A. Zh. Analysis and justification of the layout of a multipurpose machine for the development of mineral deposites [Text] / A. Zh. Kassenov, K. K. Abishev , B. N. Absadykov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 1 (451). - P. 63-68. - Bibliogr.: p. 68 ISSN 2224-5278.
UDC:
622.232
Subject headings
- Mining machines
Annotation
The article presents the results of a research work carried out by a team of authors to create a multipurpose machine for the field development of mineral deposites
Keywords
multipurpose machine, mineral deposites, geological exploration works, undercarriage system, wheel-tracked propulsion, replaceable mover
Kazakhstan
0/0 Free
periodical press (Magazines)
FESHCHUK Y.
Feshchuk, Y. Improving the system for responding to fire in areas contaminated by the chernobyl disaster [Text] / Y. Feshchuk, V. Nizhnyk , V. Nekora [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 1 (451). - P. 152-158. - Bibliogr.: p. 158 ISSN 2224-5278.
UDC:
614.842
Subject headings
- Organization of fire brigades
Annotation
The purpose of the work is to improve the fire response system on the territory of the Exclusion Zone on the basis of substantiation of the required number of fire
Keywords
exclusion zone, fire response, service time of one call, fire and rescue unit, location
Kazakhstan
0/0 Free
periodical press (Magazines)
ABUOVA R. ZH.
Abuova, R. Zh. Study of damping properties alloyed steels with ceramic-metallic nanostructured coating for critical parts [Text] / R. Zh. Abuova, D. K. Suleyev , G. A. Burshukova // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 3 (453). - P. 52-65. - Bibliogr.: p. 64-65 ISSN 2224-5278.
UDC:
628.517
Subject headings
- Engineering. Protection against noise, vibration, and shocks
Annotation
In this paper the damping properties of chromium-nickel vanadium steels with TIN-CU ceramic-metal coating with different copper content of 7 and 14 at % were studied
Keywords
nanostructure, vibration acceleration, noise-level meter, scanning electron microscope, technology
Kazakhstan
0/0 Free
periodical press (Magazines)
SHEROV K. T.
Sherov, K. T. Study of temperature distribution during rotary turning of wear-resistant cast iron [Text] / K. T. Sherov, M. R. Sikhimbayev , B. N. Absadykov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 2 (452). - P. 281-282. - Bibliogr.: p. 281-282 ISSN 2224-5278.
UDC:
621
Subject headings
- Mechanical engineering. Machinery
Annotation
This work presents a mathematical modeling process of the rotary turning by a numerical method
Keywords
rotary turning, cutting tool, temperature, cutting zone, mathematical modeling, fracture deformation
Kazakhstan
0/0 Free
periodical press (Magazines)
KENZHETAEV Z. S.
Kenzhetaev, Z. S. Selection of regional parameters for opening and drilling of technological wells underground uranium leaching [Text] / Z. S. Kenzhetaev, T. A. Kunandykov , K. S. Togizov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 3 (453). - P. 115-127. - Bibliogr.: p. 115-126-127 ISSN 2224-5278.
UDC:
622.24
Subject headings
- Drilling of wells. Drilling technique and technology
Annotation
The object of research is the technology of opening and development of wells of underground uranium leaching
Keywords
well construction, development, sinking, development, drilling mud, airlift, uranium, colmatation
Kazakhstan
0/0 Free
periodical press (Magazines)
0/0 Free
MANAT A. M.
ON ONE APPROXIMATE SOLUTION OF A NONLOCAL BOUNDARY VALUE PROBLEM FOR THE BENJAMIN-BONA-MAHONY EQUATION
periodical press (Magazines)
0/0 Free
AISAGALIEV S.
CONTROLLABILITY AND OPTIMAL SPEED-IN-ACTION OF LINEAR SYSTEMS WITH BOUNDARY CONDITIONS
periodical press (Magazines)
0/0 Free
DEKHKONOV F. N.
BOUNDARY CONTROL PROBLEM FOR THE HEAT TRANSFER EQUATION ASSOCIATED WITH HEATING PROCESS OF A ROD
periodical press (Magazines)
0/0 Free
ADIL N.
SPECTRAL PROPERTIES OF LOCAL AND NONLOCAL PROBLEMS FOR THE DIFFUSION-WAVE EQUATION OF FRACTIONAL ORDER
periodical press (Magazines)
0/0 Free
KASSENOV A. ZH.
ANALYSIS AND JUSTIFICATION OF THE LAYOUT OF A MULTIPURPOSE MACHINE FOR THE DEVELOPMENT OF MINERAL DEPOSITES
periodical press (Magazines)
0/0 Free
FESHCHUK Y.
IMPROVING THE SYSTEM FOR RESPONDING TO FIRE IN AREAS CONTAMINATED BY THE CHERNOBYL DISASTER
periodical press (Magazines)
0/0 Free
ABUOVA R. ZH.
STUDY OF DAMPING PROPERTIES ALLOYED STEELS WITH CERAMIC-METALLIC NANOSTRUCTURED COATING FOR CRITICAL PARTS
periodical press (Magazines)
0/0 Free
SHEROV K. T.
STUDY OF TEMPERATURE DISTRIBUTION DURING ROTARY TURNING OF WEAR-RESISTANT CAST IRON
periodical press (Magazines)
0/0 Free
KENZHETAEV Z. S.
SELECTION OF REGIONAL PARAMETERS FOR OPENING AND DRILLING OF TECHNOLOGICAL WELLS UNDERGROUND URANIUM LEACHING
periodical press (Magazines)
0/0 Free