E-learning has many exceptional advantages in teaching and training, and it has been applied in many universities and colleges in Dong Nai with a variety of scopes and levels; especially at a time with the motto "learning everywhere at any time", Dong Nai province sees this as a good opportunity to accelerate digital transformation in education. Simultaneously, underlining that online teaching is not only a temporary solution during epidemic seasons, but also an important way to improve educational quality. The research is carried out to examine the realities of online training in higher education in order to satisfy the demands of society's need for high-quality human resources. In addition, lecturer questionnaire and student questionnaire design would be used to collect quantitative data to answer research questions through the employment of questionnaire. The survey result showed that an average score of 4.03 to 4.19 with the “agree” level in student survey and another 4.19 to 4.29 in lecturer survey. It is indicated that the attitudes of students and lecturers on the survey items are very similar through two surveys. As a result, e-learning plays an important role in conveying the knowledge to all students at anytime and anywhere.

S-TiO2 typically exhibits high photocatalytic activity, but its powdered form makes it difficult to apply practically in environmental treatment. Diatomite from different locations varies in purity and integrity of the diatomaceous earth, making it a suitable catalyst support for synthesizing mixed-phase S-TiO2 catalysts using the sol-gel technique. The synthesized photocatalyst exhibits similar photocatalytic activity to S-TiO2. The NO gas treatment efficiency under the same conditions with different catalyst supports only decreases by approximately 3% within 30 minutes at a reaction rate of 0.0950 min-1, with an optimal mass ratio of 70:30 for S-TiO2 and diatomite. This composite material holds promise for addressing the application of photocatalytic materials in practical environmental treatment, including NO removal and the treatment of other environmental pollutants, as diatomite is a naturally available and environmentally friendly material.

With the development of information technology and smart technology to meet the Industrial Revolution 4.0, and to meet life requirements. Automatic control devices require high-precision control quality. Therefore, in this paper, we focus on researching the Sliding mode controller to improve the control quality compared to the PID controller. First, the sliding mode control is designed using the Lyapunov algorithm. Next, the process of simulating the position signal of a DC motor with a PID controller is compared with a sliding mode control to prove the effectiveness of the proposed controller.

Symbolic images stand for more than simply what appears before the eyes. They represent a deeper meaning behind the image – something. The symbolic images in public communications, and techniques of their application as an instrument of forming desired ideological models within social consciousness, as well as consider principles of social psychology that enable successful application of communication technologies to a target audience by appealing to their image thinking. Applied methods of the research are: sociocultural, historical, and content analysis, this article focuses on analyzing the significance of symbol image in public communication strategies and its impacts on brand building, trust establishment, and fostering a positive interactive environment with the public. Based on lessons drawn from practical public communication activities of Thu Dau Mot University, the article proposes additional measures to enhance the effectiveness of the unit's communication and their potential application to specific cases, contributing to the development of the field of public communication.

This study deals with the stiffness design of geometrically nonlinear structures using topology optimization. Bi-directional Evolutionary Structures Optimization (BESO) is employed to implement the design process. The geometrically nonlinear behavior of the structures are modeled using a total Lagrangian finite element formulation and the equilibrium is found using a Newton-Raphson iterative scheme. The topology optimization of linear and nonlinear modeling are implemented. The sensitivity of the objective function is found with the adjoint method and the optimization problem is solved using BESO’s update method. Objective function of complementary work is evaluated. A special technique called the continuation method is applied to solve the instability of nonlinear structure optimization. ANSYS APDL is also used to do FEA of optimal topology to verify the effectiveness of geometrically nonlinear modelling. The results show that differences in stiffness of structures optimized using linear and nonlinear modelling is generally small but it can be large in some cases, especially structure highly involving buckling behaviour.

High power losses are a great concern in operating electric distribution system. Reconfiguration is one of the most economic approaches for reducing power losses of the system. This study suggests a technique for dealing with the distribution system reconfiguration problem based on a water cycle algorithm for minimizing active power loss. The water cycle algorithm is a recently developed metaheuristic algorithm that inspired the process of water circulation for solving optimization problems. The effectiveness and performance of the water cycle algorithm were tested on the 33-node and 69-node systems. The water cycle algorithm was applied to determine the best configuration of the distribution system for active power loss minimization. The results yielded by the water cycle algorithm were compared with other optimization algorithms in the literature and the comparisons showed that the water cycle algorithm obtained good quality of solution for the problem. Therefore, the water cycle algorithm is the potential method for the distribution system reconfiguration problem.

The aim of this study was to explore the impact of using games in teaching vocabulary from the viewpoints of learners who already participated in language games. Through questionnaire, data for analysis were collected from 100 learners at a foreign language center in Binh Duong province. The results show that most of the participants are motivated to learn when they are in games. Moreover, they can acquire vocabulary more quickly and easily if the games are based on some factors such as learners’ gender, age and education status. The study suggests that in spite of the effectiveness of using games in vocabulary teaching, games should not be used too much or too less in the classrooms.

This paper explores the pros and cons of using online setting for teaching and learning English comparing with in-class setting. Online setting is undergoing a fast transformation and becomes a widely promoted platform due to COVID-19 pandemic. By reviewing different studies on online teaching, this paper aims to provide readers a better understanding about online setting. These information would be useful in Vietnam where online class just has a medium used and short history comparing with other developed and developing countries, so online class in Vietnam may need adjust and consideration based on different culture and learner’s experience. This paper also give some suggestions in design of online learning for English languages to increase the learning effectiveness.

In the trend of globalization and international integration of our country today, learning foreign languages in general and English in particular are aimed at achieving communication purposes. Therefore, learning the linguistic knowledge including vocabulary is also for the purpose of developing learners' communication skills. The non-majored English training for students at the Foreign Language Center - Thu Dau Mot University is directed to the effectiveness of communication, the most prominent is the method of learning vocabulary through the application of Morphology and Morpheme; At the same time, the method of learning meanings of words in the context and application of newly-learned words in the practice of communication skills will be also focused.