Experimental study

The study recommends prioritising FAC usage in projects exposed to sunlight, considering its cost-effectiveness and environmental advantages. These initial insights provide valuable experimental data for advancing FAC utilisation in residential construction.

14p viaburame 14-03-2025 1 1   Download

This study presents the development of an automatic electrical fault detection system for inductors, aimed at enhancing cost-effectiveness and reducing risks for businesses. First, the paper provides the structure, standards, and technical parameters of different types of inductors.

6p viaburame 14-03-2025 8 1   Download

This paper presents optimization results of the Al6061 surface roughness in turning ultra-precision based on the central composite design method (CCD) and the grey wolf optimization algorithm (GWO). The experimental matrix is built with three independent variables including spindle speed, feed rate and depth of cut. With the experimental data, the roughness regression model is established.

7p viaburame 14-03-2025 3 1   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 5 1   Download

The study was carried out in Wistar rats for 4 consecutive weeks by oral administration at the doses of 0.77 and 2.32g/kg/day. After treatment, no significant treatment-related abnormalities were observed at both doses of Boga-TN, compared to the control group, except for the white blood cells, with lower neutrophil but higher lymphocyte values observed in the treated animals. Histopathology assessment did not show any significant variation between control and treatment groups during the study period.

6p viinuzuka 28-02-2025 1 1   Download

This article presents the experimental results on the flexural behavior of reinforced concrete (RC) beams strengthened with textile-reinforced concrete (TRC). Four RC beams were made of B22.5 grade concrete, and the TRC strengthening layer utilized Sigratex Grid 350 textile, with fine-grained concrete Sikagrout 214-11 serving as the binder.

13p viyamanaka 06-02-2025 2 1   Download

To enhance load-bearing capacity and prevent structural damage, reinforced concrete elements are often strengthened with additional layers of material. This study investigates the bonding performance between Textile Reinforced Concrete (TRC) and reinforced concrete slabs through four-point bending tests.

12p viyamanaka 06-02-2025 3 1   Download

Phuong Dong Dai Trang tablet is a mixture of medicinal herbs including Hedychium coronarium, Coix lacrymajobi, Dioscorea persimilis, Cynara Scolymus L., Paeonia lactiflora, and Glochidion eriocarpum. This study was carried out to evaluate the protective and curative effects of Phuong Dong Dai Trang tablets on mustard oilinduced irritable bowel syndrome model in mice.

9p viyamanaka 06-02-2025 3 2   Download

This study was carried out to provide scientific proof to justify the intended medicinal use of PDDT tablets with two main objectives: 1) Investigate the effects of PDDT on mice’ intestinal motility; 2) Evaluate the effects of PDDT on rabbits’ isolated intestinal segments.

7p viyamanaka 06-02-2025 4 2   Download

Traditional medicine used the fruits of Cnidium monnieri (L.) Cuss to treat male hypogonadism and male infertility. This study was carried out to investigate the potential androgenic properties of the alcoholic extract of Cnidium monnieri (L.) Cuss fruits (CFE) in peripubertal castrated male rats.

8p viyamanaka 06-02-2025 4 2   Download

The present study aims to elucidate whether extensive reading enhances students’ reading skills of the second year English majors in Hanoi Metropolitan University. An extensive reading program lasted for ten weeks. The design of the study was experimental research which used quantitative approach.

10p tuetuebinhan000 23-01-2025 3 2   Download

Nowadays, there are many factors causing the decrease of male reproductive function such as diet, routine, chemical, ... But some of them have not been paid appropriate attention to, especially the use of paracetamol, which has a significant negative effect on the reproductive process. In this study, we will summarize the results of several studies on the harmful effects of prolonged high-dose use of paracetamol on sperm number, quality, portability and testicular morphology in experimental animals and humans.

15p vinara 11-01-2025 4 1   Download

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. Objective: Evaluation of the wound healing process in experimental animals treated with low- level laser therapy in clinical and histopathology.

8p viharuno 03-01-2025 9 2   Download

In the present study, cooling of PV module using a paraffin-based phase change material (PCM) in hot climate of Vietnam is investigated. Thermal modelling is first validated against experimental data reported in literature and then transient thermal simulations are carried out for a duration of 24 hours to assess the effect of PCM itself and PCM with internal fins.

6p vibenya 31-12-2024 5 2   Download

In this thesis, a numerical model with detailed reaction mechanism which is tailored for studying the behaviour of combustion of natural gas has been introduced and validated with available experimental data. The numerical model attempts to comprehensively simulate the physical conditions (temperature and pressure), equivalent ratio, and fuel dilution and strain rate effect in the laminar flames.

158p runthenight05 01-03-2023 25 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 13 3   Download

This dissertation aims to investigate the electrical impedance properties of fruits and vegetables, and explore the relationship between impedance and quality criteria. In particular, the present dissertation outlines experimental research conducted on relationships between impedance properties and fruit tastes as well as the impedance changes observed during ripening process. Impedance measurement to monitor moisture content changes in the progress of drying is also included in this research.

116p runthenight05 01-03-2023 11 3   Download

This study focuses on experimental testing and subsequent numerical analysis of impacted and pre-loaded composite coupons and bonded composite scarf joints under varying impact conditions. A methodology will be developed for the numerical modelling of preloaded impact tests to enable capture of critical failure modes and ultimate failure. The main aim is to validate a modelling strategy that will provide accurate failure characterisation of the tested joints using numerical analysis.

185p runthenight05 01-03-2023 22 3   Download

The aim of this Master of Engineering (MEng) - Aerospace thesis is to study the structural response and failure of aerospace grade composites during exposure to fire. Key aspects of the research are to analyse the thermal and mechanical responses of laminates and sandwich composites in high temperature and fire environments, which result in softening and structural failure. The research is concentrated on carbon/epoxy laminates and sandwich composites, which are the most common composite materials used in aerospace structures.

209p runthenight05 01-03-2023 11 3   Download

The focus of this thesis was to study the chemotaxonomic relationship of selected southern Australian marine brown algae of the genera Cystophora and Sargassum. Consequently, this resulted in the isolation and structure elucidation of six new terpenoids from two southern Australian marine brown algae Cystophora moniliformis and Sargassum fallax together with 10 previously reported natural products. As a result of the re-isolation of these known secondary metabolites, updated and complete structural characterisation data could be provided for the first time for 7 of these compounds.

132p runthenight07 01-03-2023 10 3   Download