Experimental investigation

The research aimed to investigate the effectiveness of applying debate techniques to improve English speaking skills for 10th graders at a high school in Thai Binh province. The quasi-experimental method was applied to find out the current situation of teaching English speaking skills and to what extent debate technique can improve English speaking skills for 10th graders.

8p 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 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 2 2   Download

The aim of this paper is to find the appropriate mix-design for creating self-healing cementitious material in Vietnam conditions. Experimental results show that the mixture including bacillus subtilis and calcium lactate can be used for creating the self-healing cementitious materials.

8p viengfa 28-10-2024 4 1   Download

The basic characteristics of sensor were investigated, and these experimental data were used for a machine learning. The results of the model validation proved to be a reliable way between the experiment and prediction values.

10p viengfa 28-10-2024 2 2   Download

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.

6p viling 11-10-2024 4 1   Download

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 experimental and numerical investigations to assess the relative fire structural resistance of thermo-mechanically compressed (or densified) spruce wood. The simulated thermal profiles, the mass loss as well as the charring depths were compared to the experimented results showing a fairly good agreement.

5p vibecca 01-10-2024 0 0   Download

Recently, the application of textile-reinforced concrete (TRC) in thin-walled precast structures has gained significant attention. Among these innovations, the combination of TRC and reinforced concrete (RC) has emerged as an effective method for creating hybrid structural systems. This paper presents the experimental results analyzing the shear behavior of a hybrid deck slab structure consisting of TRC stay-in-place (SiP) formwork and RC components.

10p vibecca 01-10-2024 3 0   Download

This research investigates the properties of concrete utilizing coal mine waste rock (CMWR) as a substitute for river sand. The workability of fresh concrete is assessed through slump tests, revealing a decrease in a slump as the percentage of CMWR replacement increases.

13p vibecca 01-10-2024 0 0   Download

This paper presents an experimental investigation into the tensile strength degradation in curved glass and carbon reinforcement of TRC specimens. The results show that the ultimate tensile load decreases as the diameter of the semi-circle parts reduce.

10p vibecca 01-10-2024 3 0   Download

This paper presents an experimental investigation conducted to evaluate the influence of the jet tilt angle, a kinematic process parameter, on the characteristics of the milled pocket as milling aluminium alloy 6065.

12p vibecca 01-10-2024 1 0   Download

Investigating the occurrence of defects in structures is currently a major issue of significant interest. In this paper, we present experimental research findings on the relationship between the moments of the power spectrum and the presence of damage in bridge beam structures.

13p vibecca 01-10-2024 2 1   Download

In this study, the objective was to employ experimental design in order to optimize the efficiency of diesel oil removal from water using activated carbon sourced from rambutan peel. A central composite design was utilized to investigate the impact of contact time, adsorbent dosage, initial oil concentration, and pH on both the removal efficiency and oil adsorption capacity across 30 different experimental designs.

12p vibecca 01-10-2024 1 1   Download

In this study, the experimental program was performed on two full-scale steel-concrete composite beams to investigate the effect of the shear connection degree on the strain of the steel-concrete composite beams. Perfobond shear connectors were used in these steel-concrete composite beams.

5p viyoko 01-10-2024 2 2   Download

This study aimed to extract L-citrulline from the pseudo aqueous solution of watermelon rind through the ion exchange process using Purolite® C100 resin. The adsorption kinetics of L-citrulline onto the cation exchange resins was investigated under different experimental conditions including pH, potassium concentration and L-citrulline concentration of initial solution.

6p vikwong 29-09-2024 1 1   Download

To compare Dinoprostone to Foley catheter as a cervical ripening method in primigravidae with Bishop’s score less than 5. Materials and Methods: This study utilized a quasi-experimental research design to investigate the induction of labor in primigravidae with low Bishop’s score. The research was conducted at the Department of Obstetrics and Gynecology, Hospital of the Hue University of Medicine and Pharmacy from July 2022 to December 2023.

6p viengfa 29-09-2024 3 2   Download

This study proposes therefore to apply the transmissibility functions for modal identification of ambient vibration testing and investigates its performance in presence of harmonics. Numerical examples and an experimental test are used for illustration and validation.

14p vifilm 24-09-2024 7 1   Download

This paper reports an experimental programme to study the effectiveness of stirrup detailing on the structural performance of columns having small sectional dimensions that are common in low-rise building structures.

9p vifilm 24-09-2024 2 1   Download

This paper has experimentally investigated a total of eight RC specimens that were carefully designed and fabricated with the main objective is to evaluate the effect of corrosion of longitudinal reinforcement without anchorage on the structural behavior of corroded RC slender beams without stirrups.

12p vifilm 24-09-2024 3 1   Download