Solved problems

This paper presents a new approach to establishing the interior ballistic algorithm for mortar systems based on thermodynamic theory. Contrary to previous studies, the processes that occurred in the ignition charges and the gas mixture properties in the barrel were considered in this study. The numerical integration method has been used to solve the problem with high accuracy.

8p vijiraiya 19-05-2025 1 1   Download

Education in Vietnam has entered a period of innovation towards developing learners' attributes and competencies. Finding measures to develop competence in general and creative problem-solving competence in particular for students in high schools is necessary in the current context.

8p vijiraiya 19-05-2025 1 1   Download

This paper examines the current use of Al in higher education in general, and among students at Hanoi University of Industry (HaUI) in particular. The current awareness, habits, usage patterns, challenges, and ethical concerns surrounding Al in academic environments are explored based on data collected through a student survey.

6p vijiraiya 19-05-2025 1 1   Download

The problem of reducing traffic congestion on highways is one of the conundrums that the transport industry as well as the government would like to solve. In this article, we apply the Double Deep Q-Network (DDQN) algorithm to a multi-agent model of traffic congestion and compare it with two other algorithms.

8p vimitsuki 06-05-2025 2 1   Download

The paper discusses the movement of a quarter-car concerning whether the tires are in contact with the road or not. A set of equations is formulated to highlight the two different states, and a new approach is presented to solve these equations while also considering the separation of the tires.

6p vimitsuki 06-05-2025 0 0   Download

This study aims to clarify how visual thinking strategy is employed in speaking lessons to solve students' English speaking problems in university education. The sample included 70 English-majored students at Dong Nai Technology University, comprising 35 first-year students and 35 sophomores.

9p visarada 28-04-2025 1 1   Download

The article presents some theoretical foundations to solve the problem of dynamic control and optimizing the structure of multifunctional carbon nanofiber-reinforced material plates with integrated piezoelectric crystal.

13p viling 11-10-2024 1 1   Download

Through the process of analysing related documents and object characteristics in FMCG companies, paper aim to build vehicle roung with me window (CVRTW) model to optimize the delivering process, thus satisfying customer demand. To ensure the quality of the results, the model will be solved using the simulated annealing algorithm (SAalgorithm).

8p vifilm 11-10-2024 1 0   Download

Artificial neural networks, which are an essential tool in Machine Learning, are used to solve many types of problems in different fields. This article will introduce an application of the artificial neural network model in the diagnosis of heart disease based on the heart.csv data file.

6p viengfa 28-10-2024 4 2   Download

This paper introduces the application of the standard Particle Swarm Optimization (PSO) algorithm with discrete integer variables to solve the problem of optimizing the position of tower cranes and material supply points.

10p viengfa 28-10-2024 3 2   Download

This study investigates the impact of teaching methodologies with probabilistic programming language R on student performance across various topics in probability theory and statistics. Integrative teaching strategies has shown impressive efficiency in enhancing student’s critical thinking skills, creativity, and ability to solve complex problems.

8p vipanly 28-10-2024 1 1   Download

In recent years, the incidence and mortality rates due to cardiovascular diseases have been on the rise globally. This is the primary reason why the main objective of this topic is to investigate techniques aimed at solving the problem of heart disease diagnosis.

10p viuzumaki 28-03-2025 1 1   Download

For robots, crawling through curved or redirected pipe sections with different pipe diameters to inspect and survey pipes is quite a difficult task. To solve this problem, in this article we propose a new pipe inspection robot model that is a combination of rigid mechanical structures with a soft body to ensure the robot moves smoothly and is flexible.

16p viyuhi 26-03-2025 5 1   Download

The article presents some research findings on the role of metacognition in the mathematical modeling process, including reading and understanding real-life problems, building mathematical models, solving math problems with the model, and presenting the solution.

8p viaburame 14-03-2025 1 1   Download

This study is based on qualitative methods: analysis and synthesis of documents with research content related to integrated teaching or the ability to apply knowledge and skills; observation of groups of 3rd grade students in the process of teaching integrated topics. The article focuses on clarifying perspectives and levels of integrated teaching; concepts and expressions of the ability to apply knowledge and skills.

12p viaburame 14-03-2025 4 0   Download

This paper discusses the changes in classroom instructions due to technology over the years in mathematics education, and how these changes have impacted mathematics learning and teaching. The impact on learning can be seen over a few phases in Singapore: The use of scientific and graphing calculators has allowed the focus on the developing of higher-order thinking skills, while at the same time de-emphasizing routine computation.

17p viaburame 14-03-2025 4 1   Download

This study explores digital competence development among students at the Faculty of Economics and Business Administration, Hung Vuong University, in the context of the Fourth Industrial Revolution. Using surveys and statistical analyses, it evaluates skills in information management, communication, content creation, safety, and problem-solving.

11p viaburame 14-03-2025 4 1   Download

To solve this problem, we use an improved genetic algorithm named GA-RT (Genetic Algorithm with Random Crossover and Negative Tournament Selection) and conduct experiments on the iMOPSE standard dataset. Experimental results show that the proposed GA-RT algorithm can effectively solve the project scheduling problem, achieving better performance compared to existing algorithms.

10p viaburame 14-03-2025 2 1   Download

Seed propagation of Mycetia balansae Drake is not easy, due to low germination rate and low viability, so it is very rare in nature. In order to conserve this plant as well as to use for commercial purposes in cooperation with Tue Linh Co.Ltd, providing a large number of plants is necessary and in vitro tissue culture technology could be solve this problem. Therefore, the study on "Callus induction and plant regeneration in vitro from leaf explants of mycetia balansae drake" was carried out.

8p xuanphongdacy09 29-09-2024 4 1   Download

This paper develops a system of practical exercises to enhance the mathematical problem-solving competencies of fifth-grade students using Realistic Mathematics Education. The novelty of this study lies in creating tasks grounded in meaningful contexts, aimed at fostering mathematization and deeper conceptual understanding.

13p tuetuebinhan000 23-01-2025 3 2   Download