Structure

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

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 4 1   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 paper, the type of obstacle micro mixer model was designed and investigated by numerical simulation to improve the mixing efficiency. Passive mixers with tail-added obstacles structures were studied and compared with other conventional T microstructures, and then their mixing performance was numerically evaluated.

14p viling 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 study, we undertook the pyrochar from lemongrass essential oil distillation residue (LR) with incorporated alkali activation, scrutinizing its structural attributes, and assessing its efficacy in MB adsorption from aqueous solutions.

12p vifilm 11-10-2024 2 1   Download

In this paper, we investigate the characteristic properties of idempotent triangular matrices over commutative semirings and describe the structure of such matrices in cases where the entries on their main diagonal are pairwise orthogonal idempotent elements.

8p viengfa 28-10-2024 1 1   Download

The study investigated the relationship between service quality, brand image, satisfaction, and consumers’ continuous purchase intention. We collected research data from 258 consumers who bought goods at supermarkets in Tra Vinh City.

12p vifilm 11-10-2024 3 1   Download

In this study, 2D-QSAR analysis and molecular docking were performed to investigate the relationship between the hydroxamatebased HDAC inhibitors with benzimidazole scaffold and the activity toward HDAC6. A dataset of 55 N-hydroxybenzamide, Nhydroxypropenamide derivatives containing benzimidazole structure with HDAC6 in vitro activity were collected.

8p vihyuga 04-03-2025 2 1   Download

The study which applies quantitative methods along with the support of EVIEWS software points out a statistical significance relationship. Firstly, the CS has a contrariwise impact on ROA but no effect on ROE and ROS. Secondly, among control variables (asset structure, expenditure ratio, revenue), the expenditure ratio is the only one showing a contrariwise impact on ROS and the rest has no statistical significance.

10p viormkorn 27-09-2024 8 2   Download

This study investigated the role of perennial crop systems in enhancing sustainable livelihoods among rural households in Dak Lak province, Vietnam, with a particular focus on coffee and pepper crops. To gather data for this study, structured interviews were conducted with 86 households (90 farms) through a multi-stage sampling approach from January to May 2019.

12p vibecca 01-10-2024 3 2   Download

Phytochemical study of Knema saxatilis stems led to the isolation of six known compounds. Their chemical structures were determined as 8-hydroxy eriodictyol (1), (2S)-7-hydroxy-3′,4′-methylenedioxideflavan (2), sitostenone (3), protocatechuic acid (4), 4-hydroxybenzoic acid (5) and vanillin (6) using NMR and MS spectral data.

7p viyoko 01-10-2024 1 1   Download

In this paper, we reported the isolation and structure resolution of five flavonoids including three flavan-3-ol compounds, (+)-catechin (1), (-)- catechin (2), and catechin 3- O-α-L-rhamnopyranoside (3), one flavone, chrysoeriol (4) and one flavononol, engeletin (5) from leaves of C. brachiata Merr.

7p viyoko 01-10-2024 4 1   Download

Acetylcholinesterase (AChE) has been one of the important and potential targets in the discovery, and development of new drugs for treating and slowing the progression of Alzheimer's disease (AD). This research suggests potential structural frameworks for synthesizing AChE inhibitor derivatives for treating AD.

11p vihyuga 04-03-2025 1 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 1 1   Download

Psoriatic arthritis (PsA) is a chronic, systemic inflammatory disease. This study assessed the cost-effectiveness of secukinumab, an interleukin-17A inhibitor, versus standard of care (SoC) from Vietnam’s National Health Insurance (NHI) perspective. Model-based cost-effectiveness analysis, the structure was a 3-month decision tree leading into a Markov model.

10p vihyuga 04-03-2025 2 1   Download

Tourism is considered as a  potential industry in many countries. To draw the attention from foreign tourists, each country has its own campaig and tourist advertisement has become a useful tool for this  purpose. With the development of high-tech, tourist advertisements can be found everywhere, every time through leaflet, brochures, press or even through the Interenet. This article mainly focuses on the similarities in generic structure between Vietnamese and English tourist advertisements.

4p bevi123 13-11-2015 59 3   Download

This paper presents the design of a lower limb exoskeleton made for the purpose of wrist joint rehabilitation. The authors use the exoskeleton structure in order to cope with the user’s upper-limb kinematics and to provide motion to the wrist joint when the arm is in any possible spatial configuration.

9p viinuzuka 28-02-2025 3 1   Download

To achieve this objective, a survey was conducted among 1020 respondents with varying genders, and educational levels in Ho Chi Minh City. The collected data was analyzed sing SPSS and AMOS software, enabling the development of a structural model.

13p viinuzuka 28-02-2025 3 1   Download

This article presents the application of Building Management System (BMS) in electrical load management. The BMS system in this article structure includes DDC, IOT 2050 Siemens, sensors, inverters and loads. Implementing this system in buildings saves energy, reduces operating costs and reduces CO2 emissions.

11p viinuzuka 28-02-2025 1 1   Download