Experimental study

In this study, the efficacy of educational technology tools in enhancing speaking skills was explored through a quasi-experimental design involving 84 IT freshmen. Employing tools such as FORVO (FV), YouGlish (YG), and Oxford Advanced Learners' Dictionary (OALD) 8th edition, the research compared the speaking abilities of students using these technologies (experimental group) against those taught through traditional methods (control group).

8p vipanly 28-10-2024 1 1   Download

This study aimed to assess the acute and subchronic toxicity of Pyridostigmine bromide 90 mg extended-release tablets in experimental animals. Subjects and methods: Pyridostigmine bromide 90 mg extended-release tablets were prepared complying in-house specifications. Acute oral toxicity (LD50) was determined in white mice using the Litchfield-Wilcoxon method. Subchronic toxicity was assessed in rabbits following OECD guidelines.

5p vipanly 28-10-2024 0 0   Download

By the aim to enhance the listening skills of EFL freshmen, an experiment was conducted using cartoons with thirty-five first-year students in an experimental group, compared to a control group, through pre-tests and post-tests. The intervention took place over five weeks during the first semester of the 2022-2023 school year, utilizing ten cartoons as research tools.

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The object of the research is 60 first-year non- English language major students at Thai Nguyen University of Sciences. The students were randomly divided into 2 groups (experimental group and control group), each group consisted of 30 students.

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The study aimed to assess the effectiveness of English podcasts in improving listening skills for non-English major students and measure their satisfaction with podcasts as a listening resource. Twenty-eight participants, including nine males and nineteen females, were randomly assigned to either a control group or an experimental group.

6p viengfa 28-10-2024 1 0   Download

This study investigates the effect of various experimental conditions, such as initial pH, initial arsenic concentration, shaking temperature, and contact time, as well as thermodynamics models on the ability to remove arsenic from water.

8p viengfa 28-10-2024 0 0   Download

This paper is structured as follows. The following section presents related work. Section 3 summarizes the characteristics of the two datasets utilized in the model and the system’s overall architecture for image-based disease diagnosis. Section 4 provides our experimental results that compare the performance metrics with other studies.

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This study aims to empirically verify the real-time responses following long-term optimal charging schedules in experimental conditions. Through empirical testing, this research complements and affirms the practical feasibility aspect of long-term optimal charging schedules for electric two-wheeler charging stations in Vietnam.

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This study focuses on investigating the effect of negative pressure on the structure and diffusion processes of Silicon dioxide at liquid nitrogen temperature. The insights gained from this study will serve as a foundation for future experimental research aimed at the development and manufacturing of advanced materials.

11p viengfa 28-10-2024 1 1   Download

This paper develops an Artificial Neural Network (ANN) model based on 96 experimental data to forecast the dynamic modulus of asphalt concrete mixtures. This study applied the repeated KFold cross-validation technique with 10 folds on the training data set to make the simulation results more reliable and find a model with more general predictive power.

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This study proposes the application of Ensemble Decision Tree Boosted (EDT Boosted) model for forecasting the surface chloride concentration of marine concrete Cs. A database of 386 experimental results was collected from 17 different sources covering twelve variables was used to build and verify the predictive power of the EDT model.

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In this study, an artificial neural networkbased Bayesian regularization (ANN) model is proposed to predict the compressive strength of concrete. The database in this study includes 208 experimental results synthesized from laboratory experiments with 9 input variables related to temperature change and design material composition.

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A large number of studies have demonstrated the wound-healing effects of LLLT in vitro, in animal models, and in clinical practice. However, there are also differences in the study results, which are dose and wavelength dependent of LLLT. Evaluation of the wound healing process in experimental animals treated with low- level laser therapy in clinical and histopathology.

8p viengfa 23-10-2024 2 0   Download

This study aimed to determine the effects of self-questioning on pre-intermediate EFL students’ reading comprehension and explore their perceptions of learning to read with self-questioning. A quasi-experimental design was carried out among two groups of sixty-eight Vietnamese pre-intermediate students over a nine-week reading course using self-questioning and teacher-posed questions.

12p viling 11-10-2024 1 0   Download

The study examines the efficacy of utilizing English pop songs to teach liaison (linking sounds) in English as a Foreign Language (EFL) contexts. The experiment, conducted over five weeks, involved two groups of adolescent learners enrolled in a general English course at a university's foreign language department in Ho Chi Minh City.

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This study aims to contribute to the development of a GaN/Ga2O3 diode that can be utilized in high-power device applications. The simulated device is calibrated against experimental GaN and Ga2O3 diodes, considering the effect of thickness of GaN layer and its doping concentration on the performance of GaN/Ga2O3 diodes. The band structures of devices are investigated to revial which factors that affect the properties of GaN/Ga2O3 diode.

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This paper provides the validation of ABAQUS 3D finite element model by the experimental results. Test specimens consist of four specimens of new exterior RCS hybrid joint that the European Project SMARTCOCO investigated with the aim to ease the construction process and avoid additional on-site work.

7p vibecca 01-10-2024 2 1   Download

This paper presents the experimental study on onedimensional compressibility behavior, soil water characteristic and soil shrinkage behavior of slurry Amberger kaolin. The volume change behavior of sample due to the suction and that due to applied vertical stress demonstrated a similarity within the saturation domain.

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This article presents the results of an experimental study on the flexural behavior of 4 specimens: 1 specimen of reinforced concrete (RC), 1 specimen strengthened with FRP sheets, and 02 specimens with the same height as the RC specimen but with a replacement of 3 cm of the protective concrete layer with a UHPC layer, either bonded or not bonded to the existing concrete, with or without the reinforcement of FRP sheets.

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In this study, the influence of injector structure and fuel injection pressure on injection mass as well as the influence of injection pressure on the development of the fuel spray are presented.

14p vibecca 01-10-2024 1 0   Download