Material evaluation

In this study, a composite material between MnFe2O4 and activated carbon from coffee husks (MFO/AC) was synthesized using co-precipitate and hydrothermal methods to remove ammonium from aqueous solutions. The characteristics of MFO/AC were characterized and evaluated by scanning electron microscopy (SEM) and Fourier transform infrared spectra (FTIR).

9p vijiraiya 19-05-2025 2 1   Download

Several experiments were conducted in a drying chamber, with Natto as the test material. These experiments involved varying the number of trays and the angle of the trays to determine the most appropriate configuration, verify the uniformity of air distribution in the equipment, and evaluate the uniformity of the average moisture reduction of Natto seeds in each batch compared to the established theory in the previous study.

5p vijiraiya 19-05-2025 2 1   Download

Although molar-incisor hypomineralization (MIH) is prevalent in Asian countries, no studies have evaluated its impact on oral health-related quality of life (OHRQoL). The aim of this study was to determine the impact of MIH on OHRQoL in Vietnamese schoolchildren. Materials and methods: This crosssectional study with 432 Vietnamese children aged 8-10 years was conducted in Hue city, Vietnam.

6p vijiraiya 19-05-2025 1 1   Download

Composite materials are widely used in aesthetic dental restorations due to their advantages, including minimal invasive preparation, high mechanical strength, adhesive durability, biocompatibility, time and cost-effectiveness. This study investigates the effect of enamel-shade composite thickness on the final color values of restorations using a two-layer technique to replace enamel and dentine.

7p vijiraiya 19-05-2025 1 1   Download

Surface electromyographic (EMG) devices are becoming more and more popular to assess sleep bruxism. Objectives: To evaluate characteristics of sleep bruxism using EMG Logger. Materials and Methods: A convenient sample of the patients at Hue University of Medicine and Pharmacy Hospital who had clinical signs related to sleep bruxism was collected.

11p vijiraiya 19-05-2025 3 1   Download

In the study, the total nitrogen content of natural rubber was determined to evaluate the effectiveness of deproteinization on the synthesis of chemically modified rubber materials. The remaining protein content in the obtained deproteinized natural rubber (DPNR) was analyzed as nitrogen content using the Kjeldahl method.

8p visarada 28-04-2025 1 1   Download

This study evaluated the test-retest reliability of the question about trouble with the locomotive organs in the NMQ in Vietnamese physical therapists (VPTs). Materials and method: It was a cross-sectional study in 10 VPTs by a convenient sampling technique.

6p vifilm 11-10-2024 3 1   Download

This study presents the results of the thermal performance of two different zeolites in heat absorption and heat release investigated under multiple heating-cooling cycles. The specific focus is highlighting the influence of zeolitic structure in comparison to the raw kaolin as their precursor to evaluate the role of porous materials.

11p viengfa 28-10-2024 2 1   Download

The aims of this study include: (1) analyzing the PAHs concentration in chicken egg samples; (2) evaluating the PAHs distribution in the albumen and yolk; and (3) estimating the exposure risk to human health via chicken egg consumption.

8p viyoko 01-10-2024 0 0   Download

Dredging plays a crucial role in port management, but disposing dredged material in the ocean raises environmental concerns. In recent years, this practice has become more prevalent in Vietnam. This study examined the dispersion of total suspended solids (TSS) in seawater from the submersion of dredged material in Vung Ang Port, northern Vietnam, to evaluate the environmental impact.

15p vibecca 01-10-2024 3 1   Download

This study evaluates the three-dimensional (3D) printing materials used in Fused Deposition Modeling (FDM) printing technology. 3D printing technology has been developing strongly, becoming an effective support tool in production and research.

11p viinuzuka 28-02-2025 3 1   Download

This article evaluates the applicability of a combination of technologies, including utilizing special lost circulation materials to seal the fractures due to changes in reservoir properties and the application of managed pressure drilling methodologies while drilling through infill wells in HTHP conditions.

13p viyamanaka 06-02-2025 3 2   Download

This study aims to examine the extent to which critical thinking (CT) is represented in the English textbook Super Minds Level 3 which has been used to teach English to the elementary level. The textbook analysis is based on two frameworks including the analytic categories of CT and the material evaluation checklists.

11p tuetuebinhan000 23-01-2025 4 1   Download

Soft tissue defects of the lower leg and foot are complicated injuries with numerous causes including trauma, ulcers, and Gout. Objectives: 1. To construct a map of the perforators of the peroneal artery and posterior tibial artery using a handheld Doppler ultrasound. 2. To evaluate the clinical outcome of perforator flaps to cover soft tissue defects in the lower leg and foot.

8p viharuno 03-01-2025 5 2   Download

This study comprehensively analyzes the impact of temperature and curing time on the compressive strength of geopolymer concrete made with locally sourced sea sand and seawater. The research aims to utilize abundant regional materials while reducing the environmental footprint associated with traditional construction practices.

5p vibenya 31-12-2024 6 2   Download

This review explores recent ML advancements in assessing corrosion in RC structures. Various algorithms, such as Artificial Neural Networks (ANNs), Gene Expression Programming (GEP), Extreme Gradient Boosting (XGBoost), Support Vector Machine (SVM) and Ensemble Learning, have shown potential in estimating corrosion processes, predicting material properties, and evaluating structural durability.

7p vibenya 31-12-2024 6 2   Download

Contents in this presentation 1. Background 2. Constructability and field performance 3. New pavement design models for reinforced asphalt 4. New material assessment methods for pavement design 5. Evaluation of reinforced asphalt products for a road application in NSW

0p ngocdbk50 25-03-2013 81 7   Download

The aim of the research was the processing of the vibration signatures from healthy and damaged composite beams acquired with the help of a Scanning Laser Vibrometer (SLV) upon excitation and analysis of the mode shapes acquired for damage detection. The displacement mode shapes acquired were then converted into curvature mode shapes with the help of a Central Difference Approximation method (CDA).

146p runthenight07 01-03-2023 9 3   Download

A retaining wall constructed on expansive soil can be subjected to lateral swelling pressures due to soil swelling, which may cause a significant horizontal deformation and bending of the retaining wall. In Australia, it is generally assumed that the backfill behind a retaining wall is non-expansive material. Therefore lateral swelling pressures induced by expansive soils are ignored in routine design.

115p runthenight07 01-03-2023 21 3   Download

The goal of this thesis is to evaluate and compare the environmental impacts of alternative thermal treatments processing MRF residual waste in Victoria.

213p runthenight04 02-02-2023 12 2   Download