In physics, the majority of natural events have been researched and described using differential equations, each having its own initial and boundary conditions. These differential equations contain a large number of fundamental constants as well as other model parameters. They add to the equation's complexity and rounding errors, making the problem more difficult to solve. In this work, we provide a method for transforming these physics differential equations into dimensionless equations, which are significantly simpler. Nondimensionalization, by suitably substituting variables, is the process of removing some or all of the physical dimensions from an equation that contains physical quantities. Some benefits of these dimensionless equations include that they are simpler to identify when using well-known mathematical methods, need less time to compute, and do not round off errors. Through several examples we discuss, this method is useful not just in quantum mechanics but also in classical physics.

This study aims to investigate students’ common errors in Vietnamese-English translation. For the objectives, 70 first-year students at Foreign Trade University – Ho Chi Minh campus, were invited to participate in this study. To identify students’ errors in Vietnamese-English translation, the participants were asked to complete five weekly assignments. The results revealed that students made grammatical, lexical, and spelling errors. The causes of these observed errors were also indicated, which included the difference between English and Vietnamese, inadequate culture background, students’ insufficient linguistic competence in English language and Vietnamese language, lack of cultural background knowledge, students’ inappropriate translation strategies, interference of Vietnamese, misunderstanding, and students’ carelessness. In addition, some suggestions were offered in the light of the findings identified in the study to help students improve their translation ability.

This paper aims to apply FMEA (Failure Mode and Effect Analysis) tool in the wood production process of Minh Duong Wood Company. In this study, the process evaluation indicators according to FMEA were analyzed such as failure severity - S (Severity value), failure frequency - O (Occurrence number), error detection ability. failure - D (Detection number), risk priority factor - RPN (Risk Priority Number). The research results show that the failure modes of the process have been systematically and comprehensively identified. Fault types are ranked as priority for improvement and corresponding solutions have been proposed.

The report deals with the Robin problem for a nonlinear wave equation with viscoelastic term. Under some suitable conditions, we establish a high-order iterative scheme and then prove that the scheme converges to the weak solution of the original problem along with the error estimate. This result extends the result in [9].

In this paper, we are interested in the problem of determining the source function forthe Sobolev equation with fractional Laplacian. This problem is non-well-posed. We show theerror estimate between the exact solution and the regularized solution with the observed data in Lb spaces.

In this work, we study the problem of finding the source function of the inhomogeneous diffusion equations with conformable derivative c∂α t u−Δu = f(x), 0 < α < 1, associate with random noisy input data. This problem is ill-posed in the sense of Hadamard. In order to regulate the instablity of the solution, we applied the truncation method and estimated the error estimate between the exact solution and the regularized solution.

The aim of the study is to investigate the errors in writing of non- English major students at Thu Dau Mot University. This study focused on paragraphs because the researcher has found that diverse errors in students’ paragraphs and wants to improve their writing skill. Seventy-four English paragraphs were written by 74 non-English major students coming from different academic majors at Thu Dau Mot University. All of the errors in the paragraphs were identified, synthesized and classified into various categorizations. The findings of the study show that the most frequently committed errors were tense, spellings, singular/plural form, prepositions, word order, fragment. On the basis of these results, many recommendations and pedagogical implications were suggested to help EFL lecturers with some teaching strategies that will reduce problems regarding writing English paragraphs among English learners.

It is very common to stabilize the preset value (Wanted value) of analog signals such as temperature, pressure, weight, flow, speed in automatic control. However, these control objects often have some problems such as overshooting, taking a long time to bring the system to a steady value, and large errors. One of the most used systems to overcome these problems is the PID, which is a preset stabilizing system with a quick function that returns the system to the set value in a short time without overshooting. error is close to zero. However, determining the scale parameters Ki, integral Kp, and differential Kd for the system to work optimally is a problem that needs to be studied. This paper presents how to accurately determine differential, integral, and scale coefficients according to 3D virtual reality model. Used a lot in simulation modeling for training and practical applications.

This research aims to describe English language errors in the scientific papers. The research data consists of 104 scientific articles that authors sent to Journal of Thu Dau Mot University. The quantitative method was applied in the form of frequency charts for each category of surface strategy taxonomy and comparative analysis. Based on the analysis theory of grammatical errors, all of the errors in these articles were identified and classified into different categorizations. The findings of the study showed that the authors’ writings were committed three main error groups: Lexical errors are the highest with 281 (49%); the number of Syntactic errors are ranked the second with 222 (39%); Morphological errors are the lowest with 69 (12%). On the basis of these results it is figured out that the authors still have difficulties in writing a research papers in English because they are not English major. Moreover the grammar of English is known as their foreign language. Another reason that the writer made errors is uninterested in organization of their papers. From the study findings above, the researcher suggests some implications to help authors improve their academic writing and meet English international standard.