Tập san Khoa học và kỹ thuật trường Đại học Bình Dương

Nonlinear vibration analysis of FG-GPLRC cylindrical panel with FG-GPLRC corrugated core

2026-07-31T12:13:38+07:00

This paper investigates the nonlinear vibration
behavior of FG-GPLRC cylindrical panels with an FGGPLRC corrugated core subjected to time-harmonic
loading. The corrugated core is modeled using an
equivalent homogenization technique based on Donnell
shell theory (DST). Within this framework, the nonlinear
equations of motion, accounting for geometric
nonlinearity of the von Kármán type, are derived using
the Lagrangian formulation and the Euler–Lagrange
equations. The dynamic responses of the panel are
obtained by employing the fourth-order Runge–Kutta
method. Numerical results indicate that the introduction
of a corrugated core significantly increases the natural
frequencies and reduces the vibration amplitudes
compared to panels with solid cores. In addition, the
effects of different graphene platelet distribution
patterns on the nonlinear vibration characteristics of FGGPLRC cylindrical panels are also examined and
discussed.

Application of Microsoft excel software in calculation and automation of dynamic graph construction for crankshaft - connecting rod mechanism of internal combustion engines

2026-07-31T13:55:48+07:00

Researching the dynamics of the crankshaftconnecting rod mechanism plays a fundamental role in
evaluating load distribution, checking structural fatigue,
and balancing internal combustion engines (Nguyễn,
2021). Traditional manual calculation and graphical
methods for dynamic diagrams are time-consuming,
labor-intensive, and highly prone to human accumulation
errors. This paper proposes an efficient solution by
utilizing Microsoft Excel to build a numerical computation
program and automate the generation of engine dynamic
graphs. Based on mathematical spreadsheet algorithms,
the authors successfully constructed a synchronized
system of development graphs plotted against the
crankshaft rotation angle (α), including: the gas force
graph (Pkt), the inertial force graph (Pj), the composite
piston force graph (P1), the tangential force graph (T), the
normal force graph (Z), and the crankpin polar load
diagram. The mathematical model was validated and
verified using the nominal technical specifications of the
Zil-130 V8 gasoline engine (Vy và cộng sự, 2006). The
research results provide an intuitive, practical
educational tool that significantly enhances the teaching
quality, coursework assignments, and scientific research
in the field of Automotive Engineering Technology

PROGRAMMING THE ALGORITHM TO CONTROL AIRBAG ACTIVATION TIMING ON A PHYSICAL SIMULATION MODEL

2026-07-31T13:29:50+07:00

The paper presents the results of programming an algorithm that adjusts the control timing for airbag deployment. The
C++ programming language was selected to develop the control algorithm for the simulation model. The results show that, when applying this algorithm to an airbag control model, it is possible to determine the deployment timing of the airbag corresponding to the magnitude of the impact force. In other words, the greater the force acting on the sensor, the deployment time of the airbag changes accordingly. This programmed algorithm also allows parameter settings to be modified by users, enabling further optimization of airbag performance in the future

Water jet material cutting technology, water jet with abrasive particles

2026-07-31T13:21:40+07:00

Mechanical processing is a very important aspect in
various economic and social sectors, including the
mechanical industry, manufacturing, and daily life.
Along with the development of science and technology,
chip formation technology in general and material
cutting technology in particular have made significant
advancements. Many scientific achievements have
been applied, and many new technologies have been
developed, among which is the high-pressure water
cutting technology and the high-pressure water cutting
technology with abrasive particles. This is a new
technology, although it has a simple process, affordable
cost, and environmental protection, it offers high
efficiency and meets the current requirements for
processing. The application of this material cutting
technology is essential to meet economic demands and
significantly contribute to environmental protection

The Suitability of Community Service as an Administrative Sanction in Vietnam

2026-07-31T14:21:06+07:00

This article analyzes historical factors, Vietnam’s
practical experience, and references to sever countries
that have applied community service as an
administrative sanction, in order to identify theoretical,
legal, and organizational conditions for its
implementation. These provide a scientific basis for
proposing the reintroduction of community service as an
administrative sanction in Vietnam (subject to
acceptance by society and legislators). Based on this
approach, the study develops, synthesizes, and
analyzes positive aspects to support the view that
community service is a suitable administrative sanction
in Vietnam. Rather than making definitive judgments, it
presents certain aspects of its suitability, thereby
contributing to further research and improvement in
legal theory, legislation, and organizational
implementation, with a view to promoting its application
in practice in the future. The article does not, however,
provide an in-depth analysis of the limitations of this
sanction.

Enhancing Institutional Governance Capacity for the One Commune One Product (OCOP) Program in Vietnam: From International Perspectives to Policy-Oriented Solutions

2026-07-31T14:16:10+07:00

The “One Commune One Product” (OCOP) initiative
stands as a cornerstone policy aimed at driving growth
and modernization within Vietnam's rural economy, while
simultaneously enhancing the value and brand
recognition of local specialties. Practical outcomes over
years of implementation demonstrate significant
advancements in scaling up commercial production,
optimizing local human resources, and raising the actual
income of rural populations nationwide. However,
integrating the OCOP policy into the economic fabric has
exposed major bottlenecks across three main
dimensions: (1) the design of the legal framework, (2) the
governance capacity of specialized management bodies,
and (3) the level of synergy among stakeholders within
the value chain. To dissect and identify these regulatory
hurdles in Vietnam's OCOP framework, this paper
adopts a qualitative approach utilizing legal document
reviews, policy system evaluations, and comparative
model analyses. By benchmarking against the policy
regulation experiences of Japan and Thailand, the study
aims to formulate recommendations to strengthen the
legal foundation and boost the efficacy of the OCOP
strategy amid the waves of the digital era and global
integration.

Indifference and Emotional Apathy in Modern Vietnamese Society: Current Situation, Causes and Solutions

2026-07-31T14:07:49+07:00

This paper examines the phenomenon of
indifference and apathy in contemporary Vietnamese
society from an interdisciplinary perspective integrating
sociology, psychology, and digital media studies. By
systematizing key concepts and applying theories such
as Anomie and the Bystander Effect, the study clarifies
the mechanisms underlying the emergence and spread
of apathetic behavior in the context of urbanization and
technological development. It also highlights the
alarming decline of compassion, particularly among
youth and within social media environments. The paper
further analyzes core causes, including utilitarian
lifestyles, competitive pressures, and the overload of
negative information. Based on these findings, it
proposes comprehensive solutions in education, media,
and legal frameworks to help restore humanistic values
and strengthen social responsibility.

FOURTH-YEAR ENGLISH MAJORS’ PERCEPTIONS OF CHATGPT IN WRITING: OPPORTUNITIES, CHALLENGES, AND PEDAGOGICAL IMPLICATIONS

2026-07-31T14:04:42+07:00

Academic writing instruction and English language learning have undergone significant changes since the introduction of
ChatGPT and other generative AI tools. Previous studies have suggested that AI tools can improve learners’ writing fluency,
provide timely feedback, and support learner autonomy; however, they also raise many pedagogical and ethical issues (Li &
Warschauer, 2023; Kessler, 2024). This study examines how fourth-year English majors at Dong Nai Technology University
perceive the use of ChatGPT in academic English writing and self-study, as well as the challenges they encounter and the
solutions they propose. The two research questions are: What are the benefits and limitations of using ChatGPT in academic
English writing, from the learners' perspective? What ways do students suggest for using ChatGPT effectively and responsibly?
Data were collected through semi-structured interviews and reflective journals of 40 student participants. The analysis revealed
three main groups of findings. First, students perceived ChatGPT as useful for improving writing efficiency, language accuracy,
and confidence. Second, they reported limitations related to overdependence, information verification, plagiarism, and reduced
critical thinking. Third, they suggested instructional workshops, lecturer modeling, and institutional guidelines for responsible AI use. The paper also emphasizes the importance of developing critical thinking and AI literacy among English majors to promote the effective, sustainable, and responsible use of ChatGPT in Vietnamese higher education

PRIMARY SCHOOL MANAGEMENT IN DEVELOPING COUNTRIES: CHALLENGES AND INNOVATIONS EXPLORED THROUGH MIXED-METHODS RESEARCH

2026-07-31T14:00:45+07:00

This research explores primary schooling management practices and the contribution of management practices,
particularly leadership-driven effectiveness and the emergence of new school management innovative practice. The mixedmethods design was used to explore various dimensions of the complexity of understanding. At the quantitative phase, 48 teachers and 13 school administrators from various primary schools were surveyed to assess the relationships among leadership practices, decision making processes, and school effectiveness. For the qualitative phase, we met with 10 participants. The qualitative evidences show that participants have reported some particular innovative practices, such as more flexible decision making structures, more teacher involvement, more data-informed management and some, were used to enhance schools effectiveness. To develop the application of a knowledge perspective in educational management through an innovator based approach, the study provides some practical contribution to improving the capacity of leadership and the context in primary education by developing context relevant innovation

2026-07-31T11:09:54+07:00

FINTECH AND PERSONAL FINANCIAL MANAGEMENT BEHAVIOR IN THE DIGITAL ECONOMY: A CONCEPTUAL ANALYSIS FROM THE VIETNAMESE CONTEXT

2026-07-31T12:09:05+07:00

This study examines the role of financial technology (Fintech) in shaping personal financial management behavior in the
digital economy from a conceptual perspective, integrating the Theory of Planned Behavior (TPB) and the Technology
Acceptance Model (TAM) to develop a multidimensional analytical framework. The findings suggest that Fintech should not only
be viewed as a technological tool but also as a “behavioral amplifier” that simultaneously enhances financial management
efficiency-through improved transparency, convenience, and automation-while potentially increasing impulsive financial decisions due to reduced cost awareness and weakened self-control. Additionally, financial literacy and digital competence are identified as key moderating factors influencing how individuals engage with Fintech and manage associated behavioral risks. Based on this framework, the study proposes a set of conceptual propositions highlighting the dual and nonlinear impacts of Fintech, thereby contributing to a deeper understanding of financial decision-making in digital contexts, particularly in emerging economies such as Vietnam.

RESOURCES, DYNAMIC CAPABILITIES, AND INNOVATION: A CONCEPTUAL FRAMEWORK FOR STARTUP PERFORMANCE

2026-07-31T12:03:21+07:00

In the context of increasing global competition and rapid technological change, startups face significant challenges in
achieving sustainable performance. While prior studies have emphasized the importance of firm resources and innovation, limited attention has been given to how these factors interact with dynamic capabilities in an integrated framework. Drawing upon the Resource-Based View and the Dynamic Capabilities, this study develops a conceptual model linking resources, dynamic capabilities, and innovation to explain startup performance. This paper adopts a qualitative and theoretical approach, synthesizing existing literature to propose an integrated framework in which firm resources serve as foundational inputs, dynamic capabilities act as transformative mechanisms, and innovation functions as a key driver of performance outcomes. The proposed model highlights the mediating role of innovation and the enabling role of dynamic capabilities in leveraging resources effectively under conditions of uncertainty. The study contributes to the literature by integrating two prominent theoretical perspectives into a unified framework tailored to startup contexts. It also provides a foundation for future empirical research, particularly in emerging economies, where startups operate under resource constraints and institutional challenges. Practical implications are offered for entrepreneurs and policymakers to enhance startup performance through strategic resource management and capability development

Integrating Carbon Credits into ESG Strategy: A Qualitative Study through Sustainability Reports of High-Emission Listed Companies in Vietnam from 2023 to 2024

2026-07-31T11:59:13+07:00

The year 2025 marks a pivotal milestone as Vietnam
approved the Carbon Market Development Project under
Decision No. 232/QĐ-TTg dated January 24, 2025,
placing significant pressure on high-emission enterprises
to transform their business models. This study explores
how listed companies integrate carbon credits into their
Environmental, Social, and Governance (ESG)
strategies through multiple case study content analysis.
By analyzing Annual Reports and Sustainability Reports
(2023-2024) of five companies—HPG, HT1, PPC, and
HSG (high-emission group) and VNM (comparative
case)—the research identifies three integration models
aligned with the international Abatement-Offset-Trading
typology: (1) internal emission reduction; (2) carbon
offsetting; and (3) carbon credit commercialization.
Within the studied sample, findings show evidence of a
shift from passive compliance toward strategic disclosure
during 2023-2024, while identifying four key barriers: lack
of regulatory guidance, investment costs, specialized
human resources, and greenwashing risks. The paper
contributes three key points: (1) a classification
framework of three integration models (AOT) applicable
in Vietnam, (2) empirical evidence on corporate behavior
during the 2023-2024 pivotal period, and (3) policy
implications based on barriers identified from data for
advancing the domestic carbon market

Unlocking Green Economic Potential: Addressing Barriers Within Ho Chi Minh City's Industrial Enterprises

2026-07-31T11:55:55+07:00

Against the backdrop of Vietnam's commitment to
achieving Net Zero emissions by 2050, green economic
development in Ho Chi Minh City's (HCMC) industrial
sector has become an urgent imperative, yet one
confronted by a complex set of barriers. This paper
employs a qualitative synthesis methodology combining
secondary document analysis, a systematic literature
review, and aggregated macroeconomic data for the
2020–2025 period to achieve two objectives: (i)
systematically identify and analyze seven core barrier
groups impeding the green transition among HCMC
industrial enterprises; and (ii) propose a coherent,
actionable set of solutions for the 2025–2030 period.
Findings indicate that financial barriers are the most
severe, with 50% of enterprises lacking sustainable
capital solutions and green credit comprising only 4.3%
of total outstanding loans, compounded by human
resource gaps technological obsolescence and
regulatory ambiguity The paper's original contribution lies
in constructing a four-stakeholder barrier analysis model
and proposing an integrated four-priority policy roadmap
tailored to HCMC's industrial context

FACTORS INFLUENCING ARTIFICIAL INTELLIGENCE (AI) USAGE INTENTION AMONG LOGISTICS EMPLOYEES IN THE SOUTHERN KEY ECONOMIC REGION OF VIETNAM

2026-07-31T11:48:54+07:00

This study aims to identify and analyze the factors that influence employees’ intention to use artificial intelligence (AI) in
the logistics industry within the Southern Key Economic Region of Viet Nam. Based on the extended Theory of Acceptance and
Use of Technology (UTAUT), the study surveyed 270 workers and analyzed the data using SPSS software. The results show that
Performance Expectancy (PE), Social Influence (SI) and Trust in AI (TR) have a positive impact, whereas AI Anxiety (AA)
negatively impacts usage intention. Conversely, Effort Expectancy (EE) and Facilitating Conditions (FC) are not statistically
significant. This study contributes to supplementing the theoretical framework and offers practical implications for organizations seeking to enhance the effective adoption of AI.

Research on the United States Policies for developing the low-altitude economy model and recommendations for Vietnam

2026-07-31T11:44:08+07:00

In the context of digital transformation and the rapid
advancement of unmanned aerial vehicle (UAV)
technology, the low-altitude economy has emerged as a
new growth driver in many countries. The United States
has proactively developed a relatively comprehensive
policy ecosystem, thereby promoting the safe and
efficient integration of UAVs into the economy.
Meanwhile, in Vietnam, the legal framework governing
low-altitude flight activities remains fragmented,
inconsistent, and unable to keep pace with practical
demands. This situation creates an urgent need to study
international experiences in order to formulate
appropriate and adaptive policies. Based on an analysis
of the U.S. model, this study proposes policy
recommendations aimed at establishing a modern legal
foundation and promoting the sustainable development
of the low-altitude economy in Vietnam

An integrated governance–admissions model for non-public schools at Thu Dau Mot Ward in the current context of educational competition

2026-07-31T11:36:02+07:00

This paper develops an integrated governance–
admissions model for non-public schools in Thu Dau Mot
Ward, Ho Chi Minh City, in the current context of
educational competition. The study adopts an applied
research design based on a corpus of 16 carefully
selected sources, combining document analysis,
contextual comparison, and model synthesis. The
research gap lies in the fact that prior studies have
usually examined school governance, school choice, or
educational marketing separately, while the systemic
linkage between school governance and admissions
outcomes in the non-public sector has not been clearly
modelled. Accordingly, the paper proposes a five-pillar
model consisting of strategic positioning; educational
quality and differentiation; parent–student experience;
communication and admissions channels; and data
governance with continuous improvement. The study
contributes by integrating previously separated strands
of literature, shifting the unit of analysis from isolated
recruitment campaigns to the governance system of the
school, and attaching an evaluation indicator set to
support implementation and refinement.