English study materials

The development of flexible electronic devices, particularly flexible and bendable energy storage devices, has catalyzed significant interest in the research of flexible composite materials. In this study, conductive paper membranes were synthesized by polymerizing polypyrrole (PPy) on the surface of cellulose fibers.

14p viaburame 14-03-2025 3 1   Download

In recent years, the understanding of processes on material surfaces has drawn considerable interest from scientists. The adsorption stage is important for further insights into surface interactions and photocatalytic reactions. In this study, we use density functional theory computations to investigate the adsorption of sulfamethoxazole (SMX) molecules on the rutile-TiO2 (001) surface (r-TiO2 ).

8p viyoko 01-10-2024 3 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

In this study, spinel ferrite nanoparticles CoFe2-xLaxO4 (x = 0, 0.025, and 0.05) were successfully synthesized via a simple co-precipitation method using a 5% NaOH solution as a precipitating agent. The physicochemical properties of the materials, annealed at 850 °C for one hour, were characterized using powder X-ray diffraction (PXRD), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), and vibrating-sample magnetometry (VSM) at room temperature.

10p viling 11-10-2024 3 1   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 aims to generate the system of histone deacetylase enzymes (HDAC) with its cofactor zinc ion using two different parameter models and application of molecular dynamic (MD) study for structure of HDAC2 and vorinostat ligand. Materials and methods: Two non-bonded models, including 12-6-4 Lennard-Jones and cationic dummy atom, were applied for building a solvation system of HDAC2 crystal structure with presence of suber-anilohydroxamic acid (SAHA) and zinc ion.

9p vihyuga 04-03-2025 3 1   Download

This study aimed to extract cellulose fibers from coffee grounds using a non-toxic and cost-efficient alkaline hydrogen peroxide extraction method. Scanning electron microscopy (SEM) analysis results indicated that, after being dried, the cellulose fibers tended to aggregate into bundles, with no individual fibers observed.

8p viinuzuka 28-02-2025 1 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 1 1   Download

This study examined the physical and microbial properties of the breadfruit flour over a 16-week storage period at 25°C. Four packaging materials, including high- and low- density polyethylene (HDPE and LDPE), polyamide (PA), and polyamide/aluminum (PAAl), were used.

8p viinuzuka 28-02-2025 3 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

This study aims to optimize and determine the influence of HVOF (High velocity oxy-fuel) spraying parameters on the hardness of WC-12Co coatings applied to the internal surface of 20Cr steel pipes.

7p viyamanaka 06-02-2025 3 2   Download

Steel pipe piles are widely used in coastal infrastructure due to their high strength and durability. This study investigated the accelerated corrosion effects on steel pipe pile materials in a simulated Nha Trang seawater environment, representing typical coastal conditions in Vietnam.

13p viyamanaka 06-02-2025 3 2   Download

The findings in this study are expected to have significant implications for road construction and maintenance using CA overlay in Vietnam. By providing a scientific foundation for material selection, design, and construction of road surfaces tailored to local conditions, this study aims to enhance investment efficiency and reduce maintenance costs.

11p viyamanaka 06-02-2025 6 2   Download

The selection of suitable material for manufacturing wheel rim is essential to address the issue of weight reduction while ensuring the load-bearing capacity of the wheel rims during vehicle movement on the road. In this study, the research team designed a 3D model of the wheel rim using Solidworks software.

8p viyamanaka 06-02-2025 2 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 1 1   Download

Cellulose nano fibers (CNF) are being considered as potential material for producing aerogel, an advanced materials for filtration technology. In this study, CNF were extracted from the sugarcance bagasse (a common agricultural waste) using ultrasonic technology and then fabricated with different additives including polyvinyl alcohol (PVA), polyethylene glycol (PEG) and graphene oxide (GO) to formulate aerogels.

7p tuetuebinhan000 23-01-2025 3 2   Download

The study investigates the changes in serum ADH concentration and finds out the relationship between prognosis factors in brain trauma injury, such as sodium treatment time at Emergency Department and patients' lives. Materials and methods: The study subjects include brain trauma patients, Glasgow Coma Scale 8, hospitalized for fewer than 72 hours at Hue Central Hospital with CT scans of the brain and diagnosis of brain trauma injury.

5p viuchiha 06-01-2025 3 1   Download

The study aimed to identify factors affecting dysfunction in the climacteric women. Materials and Methods: A cross-sectional descriptive study was carried out in 410 menopausal women in Truong An ward, Hue City. The degree of functional disorders in menopause was measured by Menopause Rating Scale (MRS). Yin deficiency and Yang deficiency constitutions were determined by Body Constitution Questionnaire.

7p vihatake 06-01-2025 4 2   Download

To explore the correlation of 24-hour ambulatory blood pressure (BP) monitoring (ABPM) parameters and cardiovascular risk factors in older adults with high-risk hypertension. Material and method: A cross-sectional study was conducted on 96 older adults (≥ 60 years old) with treated high-risk hypertension.

7p viharuno 03-01-2025 2 2   Download

The purpose of this study was to create an animal model of a mandibular alveolar bone defect without compromising the animal’s well-being. Materials and methods: A total of 24 New Zealand white rabbits underwent surgery to create mandibular alveolar bone defects.

10p viharuno 03-01-2025 3 2   Download