Sci., Academician of NAS RK Ualiyev G., Dr. Sci., Corresponding Member of NAS of RK Kosov V.N., Responsible Secretary of the editorial office:. In this paper we consider a nonlinear nonlocal boundary value problem for a system of hyperbolic equations. Sufficient conditions for the existence of an isolated solution of the considered nonlinear nonlocal boundary value problem for the system of hyperbolic equations.
Шарт 3 және келесі теңсіздіктер орындалсын
Синус-косинус әдісінің сипаттамасы
Синус-косинус әдісін қолдану
- Functional spaces
The second theorem expresses the convergence of the iterative sequence to the value of the global minimum. The first part of the task is to find the value of the global minimum point (2), and the second part is to find the coordinates of the global minimum (3). To start, the interval [𝑐0, 0] is chosen, where the value of the global minimum is located.
Introduction
Problem statements
If the function f does not depend on the variable x, then the second condition for the function f from (5) follows from the first. The function classes U and V for solving boundary value problems and the domains of the operators L and L∗, D(L) and D(L∗), respectively, are defined as follows.
The reduction of boundary value problems to integral equations
To do this, we differentiate both parts of relation (11) with the variable x twice and enter the following notation. Note that the kernel of the conjugate integral equation (15) has the following property: 17) It follows from the limit relation (17) that the norm of an integral operator acting in the space of bounded and continuous functions and defined by the kernel K2 is equal to one (even though the kernel K2 has an integrable singularity ). Thus, the solution of conjugate boundary value problems (1), (2) is reduced to the study of a pair of conjugate integral equations (13) and (15), which in the future we will call the initial ones.
Study of characteristic integral equations
From the relation (14) it follows that the integral equation (13) refers to "Volterra's for which the solution exists and is unique. The kernel of the characteristic equation K(,t) has the same properties as the kernel K2( ,t ), and the following limiting relation is valid for it.
ЕСЕПТЕУ МАТЕМАТИКАСЫ ЖӘНЕ МАТЕМАТИКАЛЫҚ МОДЕЛЬДЕУ ВЫЧИСЛИТЕЛЬНАЯ МАТЕМАТИКА И МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ
COMPUTER MATHEMATICS AND MATHEMATICAL MODELING
- Problem statement
- Calculation experiment
- Conclusion
- Acknowledgement
Когда червоточина распространяется на относительно небольшой площади (оболочка «ядра»), ее рост замедляется, особенно в поперечном направлении, из-за влияния граничного условия — условия, при котором жидкости не перетекают через эти границы. Для решения смешанной задачи двумерного уравнения Сен-Венана, описывающей течения без турбулентных диффузионных компонент, построена новая разностная схема встречного расщепления по пространственным направлениям. В условно устойчивых схемах на выбор шага интегрирования накладывается ограничение по времени.
A slight violation of the stability condition can lead to an increase in errors and non-physical solutions. It should be noted that in [17] a numerical calculation of Lyapunov stable solutions of the one-dimensional Saint-Venant equation was performed using an exciting implicit difference scheme on the example of the Great Almaty Canal. We denote the nodes of the difference grid (meaning the intersection of straight lines tt, xxj and yyl) with t,x yj, l.
Where n is the roughness coefficient that characterizes the condition of the channel surface for the case of sewer pipes, is taken in the range for other cases, information is given in the literature [18]. Also for the speed of the river corresponds to the inequality 0 v c. Then the matrix B is represented as the sum of two matrices. Chislennyy algorithm resheniya regulyarnoy melkoy vody na nestrukturirovannykh setkakh // Preprints of the Institute of Applied Mathematics.
Boundary conditions for the two-dimensional system of Saint-Venant equations //. Development of an algorithm for calculating stable solutions of the Saint-Venant equation using an upwind implicit change scheme // Eastern European Journal of Enterprise Technologies 2021.
ФИЗИКАЛЫҚ ПРОЦЕСТЕР МЕН МЕХАНИКАЛЫҚ ЖҮЙЕЛЕРДІ МОДЕЛЬДЕУ МОДЕЛИРОВАНИЕ ФИЗИЧЕСКИХ ПРОЦЕССОВ И МЕХАНИЧЕСКИХ СИСТЕМ
MODELING OF PHYSICAL PROCESSES AND MECHANICAL SYSTEMS
Maksimova [2] considered the main factors in the formation of infiltration-type deposits of polyelements (uranium, molybdenum, selenium, rhenium, vanadium, scandium, yttrium, lanthanides) limited to aquifers of the sedimentary cover. The paper [6] highlights the regularities and duration of the formation and placement of uranium deposits. Mineral distribution in plane (a) and is surface of mineral content (b) in the reservoir.
The results showed that the change in the reduction level of the solutions, depending on the distance between the wells and the density of the injected leach solution, is linear. Determination of the density distribution of the solution in the reservoir from equation (1); Calculation of the deviation (sink level - Hd) averaged over the depth of the streamlines (strav) for density values (ρinj kg/m3 of the "arithmetic mean" over the depth of the streamlines (strav) for the injected density (ρinj) 1000kg/ m3;.
Calculation of the maximum decrease level (Hmax) for each density of the injected solution (ρinj) and distance between wells (R). The distribution of pressure and streamlines in the specified area for the density (ρinj=1050 kg/m3) of the injected solution is shown in Figure 5. Dependence of the levels of "arithmetic mean" streamlines (Hd) on the distance between wells for different values of the density of the injected solution (ρinj).
Quantitative model of the formation mechanism of uranium deposits on the rolling front // Eurasian Chemico-Technological Journal.
МАТЕМАТИКАНЫ ОҚЫТУ ӘДІСТЕМЕСІ МЕТОДИКА ПРЕПОДАВАНИЯ МАТЕМАТИКИ
УДК 004. 378
Білім берудің барлық деңгейінде STEAM тәсілін енгізу жағдайында математика ең маңызды пәндердің біріне айналып отыр және STEAM негізінде оқыту үшін кәсіби құзыреттілігі жоғары жаңа форматтағы мұғалімді дайындауды талап етеді. Түйін сөздер: STEAM білім беру, STEAM құзыреттілігі, мұғалімдерді оқыту, пәндерді топтастыру, пәнаралық байланыс, пәнаралық жобалар, робототехника. STEAM білім беру жағдайында бұл мүмкін, өйткені математика басқа STEAM пәндерімен пәнаралық интеграция аясында нақты өмір контекстінде оқытылады.
Это позволяет студентам сформировать целостное восприятие решаемой задачи, умение самостоятельно выбирать методы ее решения, переносить полученные знания и навыки из одной учебной дисциплины в другую, вспоминать факты из разных дисциплин STEAM и применять их на практике при решении. реальные проблемы, способность понимать, что математические модели, математическая статистика и математические расчеты по большей части являются фундаментальными для элементов STEAM. Чем более подготовлен преподаватель в общих формах содержания STEM-знаний, в плане разработки STEAM-задач и методики организации деятельности учащихся по их выполнению, тем эффективнее реализуется интегрированное STEAM-образование. Для успешной реализации подхода STEAM в образовании система подготовки будущих бакалавров по математике в педагогических вузах, естественно, должна включать дисциплины по каждому блоку STEAM [8].
При этом, чтобы эффективно реализовать STEAM-подход в школьном образовании, он должен овладеть методикой организации обучения в STEAM-логике. Для этого в содержание подготовки учителя математики STEAM должны быть включены также дисциплины, обеспечивающие формирование у него знаний об основных технологиях STEAM, навыков в области организации учебного процесса в рамках внедрения STEAM. подход и развитие навыков создания STEAM-заданий у учащихся. Такой подход существенно повышает мотивацию студентов к успешному обучению и повышает их интерес к будущей профессиональной деятельности, углубляет знания по STEAM-дисциплинам и способствует оптимальному формированию их готовности к реализации STEAM-подхода в образовании.
Подход STEAM к образованию становится все более популярным во всем мире, и сегодня образование STEAM становится глобальной образовательной тенденцией. При внедрении подхода STEAM к образованию математика становится одним из важнейших учебных предметов наряду с другими дисциплинами STEAM. Подготовка учителя математики к STEAM-обучению требует как введения в образовательные программы дополнительных дисциплин, так и создания условий для развития навыков творческой, междисциплинарной проектной деятельности, STEAM-компетенций, а также возможности использования общих для них технологий обучения. .
ИНФОРМАТИКА COMPUTER SCIENCE
Morphology is used in linguistics to refer to the study of the structure and formation of texts. The local connection of the discourse takes place in the relationship between adjacent smallest units of the word [2]. On the fourth stage, a lightweight self-acting instruction works; it determines the polarity of the word.
The local connection of the discourse takes place in the relationship between adjacent smallest units of the word [10]. Semantic networks are thus considered as one of the methods to represent knowledge in natural language. This is due to the special characteristics of word formation in the languages of the given structure.
It ends during business implementation, where readability and interpretability of the model play an important role [8]. Testing the performance of the model on unseen data and comparing it with training data; A desirable feature of the ROC curve is to evaluate the performance characteristics at different thresholds.
Post-assessment of credit risk is one of the main tasks in the banking sector.
2 , 2 exp
The architecture of the ResNet convolutional network was trained without the use of optimization, also using stochastic gradient descent optimization parameters. The study [13] considers the solution of the problem of detection/diagnosis of diseases using a fast and consistently reliable method. Previous work shows that deep convolutional neural networks are good at recognizing plant diseases. However, the methods given in many of the above works are not able to detect the disease at an early stage of leaf growth. The researchers also trained conventional neural network architectures without trying to improve performance and reduce training time.
The aim of the research work is to develop a system capable of identifying healthy and unhealthy tomato leaves, as well as classifying types of tomato diseases using ResNet18 and InceptionV3 neural network architectures. Evaluation of the quality of recognition and classification of tomato leaf diseases and improvement of recognition quality through the accuracy metric;. The lower part of the leaves is covered with a light layer of fungus, like a cobweb.
Based on the results obtained, a comparative analysis was performed for different values of the optimization parameter. The difficulties in forming a training sample often have a decisive influence on the quality of the algorithm and can serve as a limitation of the research. The high value of the ResNet18 momentum parameter training showed the best result of all.
Some of the early computer speech synthesis methods are articulatory synthesis, formant synthesis and concatenative synthesis.