Mekong University Scientific Journal

NANOTECHNOLOGY - THE DRIVING FORCE OF THE MEDICAL REVOLUTION IN THE ERA OF INDUSTRY 4.0

2026-02-24T10:24:17+07:00

The fourth industrial revolution (Industry 4.0) is the driving force for sustainable development. In which nanotechnology will be strongly applied in medicine. Nanomedicine is the application of nanotechnology in human health care. Materials at the nanometer scale have very different physical, chemical and biological properties than the same material at larger scales. Nanotechnology and nanomaterials can create effective diagnostic tools and methods. Nanomedicine products can be targeted by nanorobots. The highly toxic treatments can be delivered with improved safety using nanotechnology, such as chemotherapy cancer drugs. This article is a narrative review about nanotechnology applications for the medical field in the future, which is the main motivation of medicine revolution in the industry 4.0. This review summarizes recent advances, applications, and future prospects of nanotechnology in modern medicine

FOOD DEMAND FORECASTING SYSTEM BASED ON MACHINE LEARNING

2026-02-24T10:24:17+07:00

Food demand forecasting plays a crucial role in optimizing the food supply chain, helping to reduce waste and inventory while improving customer service. However, traditional models often struggle to handle nonlinear, noisy, and high-dimensional data in real-world systems. This paper proposes a forecasting system utilizing the XGBoost model, combined with a feature preprocessing pipeline, log transformation, and hyperparameter optimization techniques. On a real-world test dataset, the proposed model achieves high performance, significantly improving prediction accuracy. These results clearly demonstrate the effectiveness of feature engineering and hyperparameter tuning in large-scale food demand forecasting tasks.

DESIGN AND MANUFACTURING OF EXPERIMENTAL EQUIPMENT FOR PUMPS AND HYDRAULICS STUDY

2026-02-24T10:24:17+07:00

The project “Design and Manufacturing of Experimental Equipment for Pumps and Hydraulics Study” was developed to provide Mekong University students with a practical tool for research and training. The system includes a centrifugal pump connected to three pipes of different sizes, together with valves, a flow meter, an orifice, and a Venturi tube. Water circulates from a lower tank through these devices to an upper tank and back. There are suitable instruments to measure voltage, current, vacuum, pressure, and hydraulic losses. The equipment enables students to study pump performance and pressure losses in pipes and fittings. Two experimental lessons were also prepared for student practice.

LYSIS OF FUNCTIONALLY GRADED SANDWICH PLATES USING A C¹-CONTINUOUS FINITE ELEMENT METHOD

2026-02-24T10:24:17+07:00

This paper proposes a finite element method utilizing a four-node quadrilateral plate element with seven degrees of freedom per node for the free vibration analysis of sandwich
plates featuring a metallic core. The top and bottom face sheets are composed of ceramic- metal functionally graded materials (FGMs) whose properties vary continuously through the thickness. To accurately represent the stress - strain behavior - particularly for thick plates - Shi’s third-order shear deformation theory with C1-continuous derivatives is employed. The accuracy and convergence of the proposed formulation are verified through comparisons with benchmark results available in the literature. The novelty of this research lies in the first-time development and application of a finite element model combining Lagrange and Hermite interpolation functions to analyze the free vibration characteristics of sandwich plates.

RESEARCH ON THE INFLUENCE OF LUBRICATION ON THE RESULTS OF THE MICRO-DEEP DRAWING PROCESS USING A FINITE ELEMENT MODEL ON QFORM 10 CLOUD SOFTWARE

2026-02-24T10:24:18+07:00

In the process of material forming, the selection of friction conditions (lubrication) belongs to one of the important tasks affecting, for instance, the value of deformation force. The article deals with the impact of friction factor calculated based on the A.N. Levanov’s friction law on the deformation forces during the micro-drawing process of a cup made from
aluminum alloy AD33 with the help of the finite element modeling in the QForm 10 Cloud. The forming process was simulated for two cases, with and without lubrication, whereby
several scaling factors for toolset and blank were under study. It was found that the maximal force obtained for tools without lubrication, and the influence intensity decreased with a
reduction of the dimensions of the workpiece and toolset.

STUDY ON THE EFFECT OF HARVEST AGE ON PHYSICAL CHARACTERISTICS, REDUCING SUGAR CONTENT, AND VITAMIN C CONTENT OF CUCUMBER FRUITS (Cucumis sativus L.)

2026-02-24T10:24:18+07:00

The study was conducted to determine the physiological maturity stage of the F1 hybrid cucumber cultivar Amata 765 cultivated at An Huu commune, Dong Thap province, thereby
providing a scientific basis for harvesting to ensure optimal fruit quality. Physiological and biochemical methods were employed to analyze changes in selected parameters - including
fruit length, diameter, reducing sugar content, and vitamin C content - during fruit growth and development from fruit set to maturity. Results revealed that day c post-pollination
represents the ideal stage for cucumber fruit development and quality, at which fruit dimensions approached maximum values (length a cm, diameter b cm), while vitamin C and
reducing sugar contents reached peak levels before exhibiting a slight decline thereafter. Consequently, harvesting at this precise timing is essential to maximize both yield and
nutritional value of the fruit.

DEVELOPMENT OF AGRICULTURAL AND RURAL CREDIT FOR INDIVIDUAL CUSTOMERS IN VINH LONG PROVINCE

2026-02-24T10:24:18+07:00

In the trend of innovation and increasingly deep integration, personal credit, especially for agriculture and rural areas, plays a key role in economic development, improving people’s
lives, and ensuring social security. In Vinh Long province, expanding access to credit for individuals in rural areas not only meets the capital needs for production, business, and consumption but also contributes to improving the efficiency of resource use, economic restructuring, and sustainable development. The article focuses on analyzing the current
situation of personal credit in agriculture and rural areas in Vinh Long province in the period of 2015-2024, thereby proposing well-founded recommendations to improve access
to credit, increase capital use efficiency, and aim for comprehensive and sustainable socio economic development.

PROPOSING A COMMUNITY-BASED TOURISM MODEL FOLLOWING A CIRCULAR ECONOMY APPROACH IN VINH LONG PROVINCE

2026-02-24T10:24:18+07:00

The study analyzes the current status of community tourism in the direction of circular economy (KTTH) in Vinh Long province, thereby assessing the advantages, difficulties and
challenges in applying this model to improve tourists’ satisfaction with tourism development in Vinh Long province. From there, the authors propose a model for developing community
tourism in households and community cultural craft villages. At the same time, propose a number of solutions to promote the development of community tourism in the direction of
sustainable KTTH, in order to optimize resources, minimize pollution while maintaining product value and regenerating natural systems to minimize environmental impacts and
improve the socio-economic life of local people.

DEVELOPING THE NIGHT - TIME ECONOMY: SUCCESS FACTORS AND SOLUTIONS FOR QUANG NINH PROVINCE

2026-02-24T10:24:18+07:00

The night-time economy (NTE) is increasingly gaining attention from many countries and is regarded as a new driver of economic growth. In Vietnam, the NTE has existed for
many years and is seen as a new opportunity for the country’s socio-economic development. However, the development of NTE is not always successful. In practice, NTE flourishes in
some areas while remaining stagnant in others. This article identifies factors that contribute to the successful development of NTE, analyzes the case of Quang Ninh province, and provides
recommendations for the province to leverage opportunities arising from this new model.

THE IMPACT OF TRANSFORMATIONAL LEADERSHIP STYLE ON ENERGIZING BEHAVIOR IN AVIATION SERVICE COMPANIES

2026-02-24T10:24:18+07:00

This study examines the impact of transformational leadership style on employees’ energizing behavior in aviation service companies. Simultaneously, the mediating role of job
characteristics, learning behavior, and innovation culture will also be considered. Survey data collected from 209 employees working in Vietnamese aviation service companies
were analyzed to provide evidence. The study used SPSS software for data screening and factor analysis, and SmartPLS to test the partial least squares structural equation model
(PLS-SEM). The model results indicate that the transformational leadership style enhances employee energizing behavior at work; this relationship is partially mediated through job
characteristics, learning behavior, and a culture of innovation. This finding also implies that managers who adopt a transformational leadership style can help the organization
adapt to new environments and improve its learning capacity, performance, and success.

E-BANKING SERVICE QUALITY IMPROVEMENT SOLUTIONS FOR INDIVIDUAL CUSTOMERS AT BANQUE POUR LE COMMERCE EXTESRIEUR LAO

2026-02-24T10:24:19+07:00

In the digital transformation era, electronic banking (e-banking) services have become a key channel enhancing banks’ competitiveness. At Banque Pour Le Commerce Exterieur
Lao (BCEL), however, service quality remains limited, especially in responsiveness and customer support. Based on a survey of 250 customers, this study applied SERVQUAL,
Cronbach’s Alpha, and Exploratory Factor Analysis (EFA) to assess e-banking service quality. The results indicate that customers value tangibles, assurance, and empathy, while
responsiveness is the weakest factor due to delays in technical support. Accordingly, four solutions are proposed: improving responsiveness, strengthening security and reliability,
enhancing staff competence, and upgrading IT infrastructure. These solutions are expected to enhance customer satisfaction and loyalty, thereby improving BCEL’s service quality and
competitiveness.

STRATEGIC SOLUTIONS FOR ENHANCING THE COMPETITIVE CAPACITY OF DONG THAP PRINTING AND PACKAGING JOINT STOCK COMPANY

2026-02-24T10:24:19+07:00

Research Topic Strategic Solutions for Enhancing the Competitive Capacity of Dong
Thap Printing and Packaging Joint Stock Company during the Period 2020–2024. Grounded
in an analysis of both internal and external competitiveness through the EFE, IFE, CPM,
and SWOT matrices, the findings reveal that the Company possesses significant strengths in
technology, product quality, and customer service. However, limitations remain in market
share, human resources, and product innovation. Externally, favorable conditions arise
from trends such as eco-friendly packaging and digital transformation. At the same time, the
Company is confronted with fierce industry competition and major challenges stemming from
raw material price fluctuations. The study proposes seven strategic directions toward 2030,
namely: (1) Brand repositioning; (2) Customer diversification; (3) Financial consolidation;
(4) Distribution network expansion; (5) Human resource development; (6) Investment in
green technology and digital printing; (7) Optimization of raw material management and
cost efficiency. The overarching objective is to build sustainable competitive advantages,
expand market share, and elevate the brand to a national scale.

DEVELOPMENT OF A PROCEDURE FOR QUANTITATIVE DETERMINATION OF VITAMIN C IN RAW MATERIALS USING THE UV-VIS SPECTROPHOTOMETRIC METHOD

2026-02-24T10:24:19+07:00

This study aims to develop and validate a direct UV-Vis spectrophotometric method for the quantitative determination of vitamin C in raw materials, using a phosphate buffer system
at pH 5.4 combined with sodium oxalate as a stabilizing agent. The analytical procedure was evaluated in terms of specificity, linearity, accuracy, and precision. The results showed
that the standard solution, test solution, and spiked solution exhibited a clear absorption peak at λmax = 265.5 nm. In contrast, the blank showed no significant absorption at this wavelength, demonstrating reasonable specificity. In the concentration range of 8-12 ppm, the calibration curve exhibited excellent linearity with a correlation coefficient R² = 0.99994.
The recovery values ranged from 98% to 102% with RSD < 2%, indicating acceptable accuracy and repeatability. The validated method was then applied to quantify nine raw
vitamin C samples (M1-M9), whose assay results were within the acceptable limit of 95 110% of the label claim. These findings confirm that the proposed UV-Vis method is reliable,
cost-effective, and suitable for routine quality control of vitamin C in raw materials.

QUALITY EVALUATION OF HOAI SON TUBERS (DIOSCOREA PERSIMILIS HOOK.F.) CULTIVATED IN NHO QUAN, NINH BINH

2026-02-24T10:24:21+07:00

Background: Dioscorea tubers have been planned in Van Phuong, Nho Quan (Ninh Binh) since 2020. Evaluating the quality of domestically produced medicinal herbs, preserving the
genes of indigenous medicinal plants, and thereby proactively sourcing internal medicinal herbs is an urgent requirement.Objectives:Evaluate the quality of tubers collected from
Dioscorea persimilis Hook.f. trees, Dioscoreaceae family, which grown in Nho Quan district, Ninh Binh province in 2023 according to the criteria specified: described in morphology,
microsurgical characteristics, and powder examination; Determine moisture. Material and Methods: Tubers harvested from 1-year-old Hoai Son trees were described in morphology,
microsurgical characteristics, and powder examination; Determine moisture. Results: The quality of Hoai Son tubers meets the regulations of PV EV on the following indicators:
Description of medicinal herbs, microsurgical characteristics, powder screening; humidity: 12.03%. Conclusion: Hoai Son medicinal herbs grown in Nho Quan, Ninh Binh meet the
criteria specified in PV EV.