Experimental design

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 0 0   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 3 1   Download

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.

12p viengfa 28-10-2024 1 1   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

In this paper, a membership function of the form S-function is applied to improve the quality of extracted linguistic summaries. Besides, the applied algorithm is parallelized to reduce running time. The experimental results with the creep dataset have demonstrated the effectiveness of the proposed method.

12p 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 0 0   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 2 1   Download

This study presents a series of soil concrete mix that is made of excavated soils, cement, lime and hemp fibers. An experimental program was carried out on the testing samples of soil concrete with different proportions of clayey soil and hemp fibers.

12p vifilm 24-09-2024 1 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

This modeling is performed on an experimental data set of complexes, where the metal ions of these complexes include transition ion metals and lanthanide ion metals. We use these models to develop a series of new thiosemicarbazone and their complexes; simultaneously, the complexes are worked out the stability constants from the novel models.

9p dianmotminh02 03-05-2024 7 2   Download

The effect of machining parameters on the surface roughness in dry-turning Ti6Al4V alloy using an experimental design method was investigated. A mathematical equation based on the response surface methodology was established to fully understand the influence of machining parameters (cutting speed, feed rate, and depth of cut) on the surface roughness.

9p viwarmachine 01-07-2023 11 3   Download

Magnetic bearing systems have received much attention in the research community for the past decades. Its inherent nonlinearity and open-loop instability present challenges for controller design. This thesis investigates and designs model predictive control (MPC) systems for an experimental Active Magnetic Bearing (AMB) laboratory system. A host-target development environment of real-time control system with hardware in the loop (HIL) is used for implementation of the predictive control systems. In this thesis, both continuous and discrete time model predictive controllers are studied.

172p runthenight05 01-03-2023 9 3   Download

This thesis investigates the SPH capability available in the commercial Finite Element (FE) code LS-DYNA®, for water impact problems. Experiments have been conducted on rigid wedges impacting water, which were then simulated with the SPH method. Although certain limitations were experienced with the experimental results, a positive correlation was observed with the numerical technique, thus establishing SPH as a promising method for crashworthiness design.

176p runthenight07 01-03-2023 8 3   Download

The thesis is structured as follows: Chapter 1 Introduction; Chapter 2 Literature Review; Chapter 3 Experimental Design, Development and Application of an Accelerated Drill Test; Chapter 4 Discussion: The Developed Accelerated Drill Test; Chapter 5 Conclusions and Recommendations for Further Work; Appendix A – VMC Setup and Programming for Drill Testing; Appendix B - Designing an Automated Drill Test and DAQ System for Spindle Current Collection.

172p runthenight07 01-03-2023 6 3   Download

This thesis emphasizes on implementing and experimentally demonstrating innovative fabrication solutions for micro-scale metamaterials designed to operate in the terahertz electromagnetic regime. Microfabrication is a conventional fabrication technique that has been employed to fabricate metamaterials operating at terahertz frequencies.

81p runthenight07 01-03-2023 7 4   Download

The main contents of the dissertation "Between studio and lab: explorations with bacterial cellulose" consist of five main chapters: Chapter 1 bacterial cellulose: fibres secreted by microorganisms; chapter 2 community of practice: situating within biodesign; chapter 3 studio-based experimentation; chapter 4 laboratory-based experimentation; chapter 5 reflections.

172p runthenight04 02-02-2023 5 2   Download

This research examines how parametric loudspeakers may be considered unique acousmatic musical instruments; how the parametric acoustic array (PAA) can potentially make new forms of music and listening experiences; and how PAA-design problems can be overcome. Interdisciplinary in nature, the study uses grounded theory and experimental music practice within a design research methodology. Theory emerges from data, in concert with analysis and framing that draws on areas such as electroacoustic music, spatial composition, acoustics, PAA science/theory, modulation theory, and medium theory.

177p runthenight04 02-02-2023 2 2   Download

From the experimental studies on the indoor model, the analysis of the software model under the load of the column system combined with the high strength geogrid considering the ground pressure, the column deformation, and the mesh deformation, propose new calculation formulas, which are more suitable in GRPS design.

27p hobbsandshaw 09-06-2021 22 4   Download

A study was conducted on GI tagged Tezpur litchi (Litchi chinesis Sonn.) varieties at litchi garden, Porua, Tezpur and on a litchi variety at Experimental Farm, Department of Horticulture, Assam Agricultural University, Jorhat during 2016-2018 to have a morphological studies of Tezpur litchi. A total of seven varieties i.e., Bombay, Shahi, Piyaji, China, Bilati and Elaichi from Tezpur and Shahi from Jorhat district with four replications were laid out in a Completely Randomized Design (CRD).

9p chauchaungayxua11 23-03-2021 14 2   Download

The present investigation was under taken with the objectives to estimate genetic variability, heritability and genetic advance for yield and yield contributing components of cucumber. The experimental materials for this investigation were fourteen genotypes of cucumber consisting of parthenocarpic, gynoecious and monecious germplasms crossed in line × tester mating design produced thirty three hybrids (F1). Thirty three F1 crosses along with their parents were evaluated in two environments viz.

9p angicungduoc6 22-07-2020 20 2   Download