Materials in english

The auxiliary parts of the impact test hammer are only suitable for certain cases. The impact velocity of other cases are determined by measuring. Instead of measuring multiple times, the hammer velocity calculating method and program is suggested by this article for general cases and the input parameters will be changed for the other cases. The calculation results are verified by using a high speed camera to measure the hammer velocity.

9p viyuhi 26-03-2025 0 0   Download

This article explores practical research on the application of SEC in mathematics education both globally and in Vietnam. It examines the perspectives and characteristics of SEC in mathematics education, as well as SEC integrated with AI.

17p viaburame 14-03-2025 2 0   Download

The first principle calculation was employed to investigate the formation energies and structural, electronic, and magnetic properties of intrinsic and Ni-doped sodium bismuth titanate Bi0.5Na0.5TiO3(BNT). The obtained formation energies indicate that Ni atoms prefer to dope into Bi-sites in the lattice of BNT while the calculated band structure shows that the doping leads to the emergence of new midgap energy states in the bandgaps, reducing the bandgap value of doped materials.

10p viaburame 14-03-2025 3 1   Download

Photoluminescent composites consisting of a photoluminescent material dispersed in a suitable matrix have been applied in many applications, such as light-emitting diodes, solar concentrators, and anticounterfeiting inks. In this study, we have demonstrated a one-step method to prepare homogeneous composites by inducing the formation of in-situ photoluminescent centers in a stable matrix.

8p viaburame 14-03-2025 0 0   Download

The cement industry plays a crucial role in providing construction materials, directly contributing to infrastructure development and economic growth. Being interned at a cement manufacturing factory is an invaluable experience for engineering students in learning automation solutions in industry. During the internship at Hamaco Co., Ltd., a plant/model for simulating some steps in a Cement production process was built.

8p viaburame 14-03-2025 3 1   Download

In this study, we synthesized YPO4:x%Tb3+ using the combustion synthesis method and investigated the effects of annealing temperature and dopant concentration on the structural, morphological, and optical properties of the material.

8p viaburame 14-03-2025 2 0   Download

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

Zinc oxide is highly sought after for several applications in biology, optoelectronics, electronics, and sensing. Zinc oxide nanorods exhibit a high exciton binding energy and a wide direct band gap, making them an attractive material for ultraviolet optoelectronic devices in the compound semiconductor field.

6p viling 11-10-2024 4 1   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

In the present work, CeO2 with different loading was embedded on reduced graphene oxide (rGO) by a simple one-pot hydrothermal method. The synthesized samples were characterized using XRD, EDX mapping, FESEM, and UV-Vis DRS techniques.

11p vifilm 11-10-2024 3 1   Download

The materials with a spinel structure have gotten some attention for their resistance to oxidizing/reducing agents and their application in many fields such as pigments, refractory, electronic engineering, magnetism, and energy storage materials.

8p vifilm 11-10-2024 2 1   Download

In this research, Molecular Dynamics (MD) simulations were conducted to explore the temperature effect on the microstructure and phase transition of the Ag0.25Au0.75 alloy. The findings reveal that as the temperature rises, the material's phase transition switches from crystalline to liquid and vice versa.

9p viengfa 28-10-2024 5 1   Download

The article presents the assessment of the students from K24, 23, and 22 (alumni) on its main program in 7 aspects: (i) program objectives; (ii) program content; (iii) soft skills; (iv) lecturers and teaching activities; (v)students’ learning outcome assessment; (vi) materials and facilities for learning; (vii) consultancy and supports given to students.

13p viormkorn 27-09-2024 14 3   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

In recent years, the issue of oil and organic spillage caused by human population growth has become increasingly urgent, not only in Vietnam but also worldwide. Researchers are showing great interest in the research and development of materials capable of selectively absorbing oils and organic solvents while repelling water.

7p viinuzuka 28-02-2025 2 1   Download

The research is motivated by the growing interest in using natural products for biopolymer engineering, particularly in developing bioactive and biocompatible materials. Genipin, a natural blue colorant precursor, has garnered attention due to its unique chemical structure and crosslinking properties with natural polymers.

11p viinuzuka 28-02-2025 4 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

"Introduction to English Literature" giới thiệu những tác phẩm thơ tiêu biểu của các nhà thơ Anh, Mỹ và các nước khác. Giáo trình phân tích các bài thơ như "O My Luve's Like a Red Red Rose", "Introduction to Poetry", "Richard Cory", "The Red Wheelbarrow", "A Birthday", "Virtue", "In Reference to Her Children", "Eating Alone", "When You Are Old", "She Walks in Beauty", và "Ozymandias". Mục tiêu là giúp người học làm quen với các phong cách thơ khác nhau và hiểu được ý nghĩa sâu sắc của từng tác phẩm. Giáo trình phù hợp cho sinh viên bắt đầu tìm hiểu văn học Anh.

71p tuetuebinhan666 12-02-2025 1 1   Download