Modeling

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

For robots, crawling through curved or redirected pipe sections with different pipe diameters to inspect and survey pipes is quite a difficult task. To solve this problem, in this article we propose a new pipe inspection robot model that is a combination of rigid mechanical structures with a soft body to ensure the robot moves smoothly and is flexible.

16p viyuhi 26-03-2025 0 0   Download

This article focuses on the aerodynamic and acoustic characteristics of both an isolated propeller model and a propeller - boundary surface model. The study uses the Reynoldsaveraged Navier-Stokes (RANS) method combined with Computational Fluid Dynamics techniques to analyze the flow field and wake flow behind the propeller and to determine its basic aerodynamic coefficients.

14p viyuhi 26-03-2025 0 0   Download

Gamification is increasingly being applied to mobile applications, including e-wallets, to create a more interactive and engaging user experience. As a growing number of financial applications incorporate gamification elements to encourage customer usage, it becomes essential to understand the impact of gamification features in this domain.

10p viyuhi 26-03-2025 1 0   Download

This study investigates the factors influencing citizens’ intention to use online public services (OPS), focusing on perceived usefulness, trust in security, convenience, ease of use, and technological accessibility. Using a survey of 334 people in Hanoi and the PLS-SEM model, the study analyzes the impact of these factors on user intention through a series of empirical tests.

11p viyuhi 26-03-2025 0 0   Download

This study builds upon the research outcomes of earlier researchers by combining suitable factors relevant to the Vietnamese market and eliminating inappropriate factors, to investigate the impact of the communication model on choosing and the consumer’s decision on sustainable fashion products in Vietnam.

11p viyuhi 26-03-2025 1 0   Download

Employees’ innovative work behaviours (IWB) emphasize the multifaceted nature of employee contributions to organizational innovation, encompassing both the ideation stage and the necessary implementation behaviours that translate innovative ideas into tangible performance improvements. Fostering a work environment that encourages and celebrates IWB becomes crucial for organizations seeking to maximize their innovation potential.

10p viyuhi 26-03-2025 0 0   Download

Agricultural and rural tourism is understood as the activity of a community participating in tourism, this activity begins spontaneously in places with attractive tourist attractions and historical sites where local residents participate in serving the needs of tourists.

13p viaburame 14-03-2025 1 0   Download

The article presents some research findings on the role of metacognition in the mathematical modeling process, including reading and understanding real-life problems, building mathematical models, solving math problems with the model, and presenting the solution.

8p viaburame 14-03-2025 0 0   Download

The terms model and modeling are central concepts in mathematics and physics teaching. It is known, however, that the focus of the perspectives on these concepts in the two subjects are shifted against each other.

14p viaburame 14-03-2025 0 0   Download

This paper explores the application of GeoGebra software to assist teachers and students in lessons on fixed points of families of lines and circles, a relatively complex topic in secondary school geometry that requires logical reasoning and advanced proof skills. GeoGebra, as a visual modeling tool, enables the discovery and proof of fixed points in problems involving families of lines and circles.

7p viaburame 14-03-2025 1 0   Download

The study aims to identify factors affecting financial sustainability in community tourism development in the Northwest region. Survey data were collected from 135 tourism business households and individuals with direct and indirect income from tourism activities in the community tourism village in the Northwest region.

12p viaburame 14-03-2025 1 1   Download

It aims to evaluate the causal impacts of strategic management practices, investigate the mediating roles of innovation capabilities and operational efficiency, and provide actionable insights to foster sustainable business models and green economic growth in Vietnam’s renewable energy enterprises.

10p viaburame 14-03-2025 1 0   Download

This article explores the digital transformation process of Hung Vuong University, reviews the current status, and offers solutions for the school’s digital transformation process shortly.

10p viaburame 14-03-2025 2 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 2 1   Download

The article presents a model and derives analytical expressions for Helmholtz free energy, the nearest neighbor distance, isothermal compressibility, the thermal expansion coefficient, the heat capacities at constant volume and constant pressure as functions of temperature, concentration of interstitial atoms, and film’s thickness for an interstitial binary alloy with a BCC structure based on the statistical moment method (SMM).

16p viaburame 14-03-2025 2 1   Download

Garlic has been utilized since ancient times for both culinary and medicinal purposes. Recent research has identified selenium compounds in garlic, including γ-Glutamyl-Se-methylselenocysteine (GGMSC), leading to the hypothesis that GGMSC acts as a carrier for Se-methylselenocysteine (MSC). Experiments conducted on animals by researchers indicate that the effects of GGMSC in garlic and MSC on cancer cells in experimental models are equivalent. This finding suggests that garlic is a potential chemotherapeutic agent to enhance cancer treatment.

5p tuongmotranh 18-03-2025 3 1   Download

This research presents an exploratory investigation of sales agents of international insurance firms in Hanoi, aiming to understand the connection between the Uncertainty Avoidance (UA), as discussed by Hofstede (2024), and the digital divide identified by Jan van Dijk (2020). The survey using Google Form was administered to 246 Vietnamese sales agents to collect data for SPSS analysis. The AMOS path diagram was then employed to test the hypotheses based on the conceptual model. The findings indicate that Uncertainty Avoidance negatively impacts the digital divide.

12p tuongmotranh 18-03-2025 4 1   Download

The study attempts to explore economic, financial, and institutional developmental factors that contribute to the growth of the size of corporate bond markets by using the data set from ten Asian economies (China; Hong Kong, Indonesia; Japan; Korea; Malaysia; the Philippines; Singapore; Thailand; and Vietnam). The empirical findings by generalized least squares model show that the level of economic development as shown by GDP per capita is one of the most important factors in the development of corporate bond markets.

9p tuongmotranh 18-03-2025 8 1   Download

This paper proposes an advanced method for recognizing learners' emotions by incorporating the use of emojis to reflect the modern communication tendencies of learners, typically young individuals.

11p viaburame 14-03-2025 2 1   Download