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The purpose of this paper is to investigate the mechanical properties’ behaviors of woven composite cut-out structures with specific parameters. Because of the complexity of micro-scale and meso-scale structure, it is difficult to accurately predict the mechanical material behavior of woven composites. Numerical simulations are increasingly necessary for the design and optimization of test procedures for composite structures made by the woven composite. The results of the proposed method are well satisfied with the results obtained from the experiment and other studies. Moreover, parametric studies on different plates based on the stacking sequences are investigated.

A multi-scale modeling approach is suggested. Back-propagation neural networks (BPNN), radial basis function (RBF) and least square support vector regression are integrated with efficient global optimization (EGO) to reduce the weight of assigned structure. Optimization results are verified by finite element analysis.

Compared with other similar studies, the advantage of the suggested strategy uses homogenized properties behaviors with more complex analysis of woven composite structures. According to investigation results, it can be found that 450/−450 ply-orientation is the best buckling load value for all the cut-out shape requirements. According to the optimal results, the BPNN-EGO is the best candidate for the EGO to optimize the woven composite structures.

A multi-scale approach is used to investigate the mechanical properties of a complex woven composite material architecture. Buckling of different cut-out shapes with the same area is surveyed. According to investigation, 45°/−45° ply-orientation is the best for all cut-out shapes. Different surrogate models are integrated in EGO for optimization. The BPNN surrogate model is the best choice for EGO to optimization difficult problems of woven composite materials.

This paper aims to examine the management status quo of archaeological heritage in Vietnam seen in the case of Vuon Chuoi, a complex of Bronze Age sites located in Central Hanoi, which has been believed to be Hanoi’s first human settlement. Like other archaeological sites located in urban areas, this site has been under threat of destruction caused by land encroachment pressure. Although researchers have long waged a campaign for preservation, the dissensus among key stakeholders and the dispute over responsibility have left this site at the heart of an interminable polemic over legislation.

This research utilises a qualitative approach, and the primary data were collected throughout multiple field trips in 2019 and 2020. Several open-ended interviews were conducted with various state and nonstate actors involved in the Vuon Chuoi Complex’s management process. The discussion was also supported by analysing related legal documents retrieved from national archives and official online directories.

This paper dissects the current legislative and administrative framework applied in governing heritage in general and archaeological sites in Vietnam, in particular. The results indicate that existing flaws in Vietnam’s legal system are detectable, and the unsystematic organisation has led to deferment of the decision-making processes. Also, there is an apparent difference found in the attitude of the bodies in charge toward the treatment of listed and unlisted sites.

This research outlines that in the wake of urbanisation and industrialisation in Vietnam, a consensus among key stakeholders and an inclusive legal system are required to help preserve archaeological sites in urgent need of attention. Although several Vietnamese laws and regulations have been put into practice, they have shown critical barriers and gaps in conserving Vietnamese cultural heritage.

The purpose of this paper is to find out the distribution of benefits, costs, and value added among the actors and problems in the practical management in dairy milk value chain, especially in one of the most important dairy areas in Vietnam to see how they upgrade in the value chain.

A survey was carried out in Bavi, Hanoi where a large amount of fresh milk is produced annually. The content of the survey was built before conducting in Bavi with 160 questionnaires. The questionnaires were based on the criteria which reflect the main objectives of the paper such as the actor’s profits and costs, the relationship among these actors, and the advantages and disadvantages in the dairy milk’s value chain. Some part of results of the paper was evaluated by conducting interviews with the relevant target groups in the value chain of dairy milk. Data collected were aggregated and analyzed by SPSS20, Excel. The calculation of cost and profit margin of each actor in the chain was also be presented by a quantitative tool for value chain analysis.

This study pointed out the systemized problems in the value chain of one of the biggest dairy companies in Vietnam. This study revealed some wicked problems in the value chains of Vietnam under globalization.

This study could not cover all of the detailed actors in the dairy value chain.

The value of income in the chain is distributed unequally. The benefits that farmers receive are inadequate with the costs they have to pay. This is a particular chain, in which the main factors boosting the chain are factories, and an increase in revenue also reflects the benefits of them. The result is that the value added in the chain is also biased toward the dairy plant. The paper also pointed out the shortcomings in the cost calculation of farmers. All the expenses, such as wages and the opportunity cost, are calculated in the total cost of the dairy plant, whereas dairy farmers do not mention these costs. Thus, in terms of benefits, farmers suffer more disadvantages, thus they should be received more value. In terms of management, Bavi’s authorities could not manage the output of milk in the perfect way. The lax management has led to a series of counterfeit goods that appear on the market today. These low-quality products are sold right on the highway and the Bavi’s tourist destination.

The purpose of this paper is twofold: to explain access to formal and informal credit in agriculture of Vietnam; and to compare the effectiveness between regular econometrics and machine learning techniques.

The multinomial logit (MNL) regression model and the random forest (RF) technique are employed for comparison purposes. To avoid heteroskedasticity, the robust covariance matrix is computed to estimate the sandwich estimator which in turn provides an asymptotic covariance matrix for biased estimators. Additionally, multicollinearity is tested among independent variables with variance inflation factors less than 3. Adequacy approach and sensitivity analysis are used to determine relevant levels of predictors. For models comparison, statistical evaluation metrics including Cohen’s κ, mean absolute error, root mean squared error and relative absolute error are employed.

The discrepancy between sensitivity analysis and adequacy approach revealed that MNL is more compatible for explaining determinants of credit participation. Due to insignificant differences in the evaluation metrics between models, the winner of choice is undetermined. Among other determinants, collateral, farmsize, income, procedure, literacy and all risk variables stand out to be critical factors when deciding borrowing schemes. While financially literate farmers tend to acquire loans from both sources, borrowing decisions against different risk sources depend on risk type and famers’ own desire to borrow.

Results of the MNL model are more consistent with literatures, which reinforce the role of collateral in the local credit scheme. Besides, financial literacy and farmers’ perception on different risk sources also influence how farmers’ borrowing strategies vary among sources.

This study aims to evaluate the feasibility of a hybrid fire testing by real-time subdivision of physical and numerical substructures (NSs) on simplified structures as a milestone in the development of the method.

An interface where the data was exchanged between a finite element software and a hydraulic jack regulator using text files has been developed and applied to perform two experimental campaigns of nine tests on simple steel frame structures with different thermal loading conditions. In the first experimental campaign, the physical substructure (PS) was assumedly protected by insulating material, while the NS was uniformly exposed to ISO 834 fire on all sides. The difference of the second experimental campaign from the first one was that the PS was heated on one side.

The experimental results showed how a gap between the determined equilibrium position and the “real” position caused by the time lag, as well as an overshoot phenomenon due to the non-synchronized action of both substructures, may occur. From the identification of the overshoot, two paths of development spring to mind to reduce the delay of the NS.

In the context that the number of proposal theoretical algorithms continues to increase with the absence of real experimental adjustments, such experimental results and the associated analysis constitute additional understandings to identify possible paths of improvements that might have been missed or could not be accessed through previous studies.

Vietnam is firmly committed to attaining the Sustainable Development Goals articulated in the United Nations 2030 Sustainable Development Agenda. Goal 4 concerns quality education, and target 4.3 refers to ensuring access by all men and women to quality and affordable technical, vocational and tertiary education, including university education. In 2017, the Prime Minister issued a directive that included five actions to be taken by Vietnam’s Ministry of Education and Training to achieve target 4.3 in the context of the higher education sector. This chapter provides an opportunity to review some challenges the Ministry faces in implementing the five actions specified.

This article aims to clarify the role of social capital and social capital inequality embedded in bank ties in enabling and diversifying new firms' debt use.

The study adopts a quantitative method, using an unbalanced longitudinal dataset covering three years–2011, 2013 and 2015–from a project on small manufacturing enterprises in Vietnam. The sample consists of 513 firm-year observations.

Network extensity and network mobilisation increase new firms' debt use. Differences in ascribed and attained social statuses (i.e. gender, generation, business association membership and political affiliation) result in social capital inequality between entrepreneurs. Entrepreneurs who are of a younger generation, have higher levels of education and are not members of the Communist Party benefit less from social capital than those who are older, have less education and are party members.

The effects of access to and the use of the social capital embedded in bank ties on new firms' debt use are both studied. The sources of social capital inequality are investigated at the individual level through distinguishing ascribed and attained social statuses and explained by two mechanisms: capital deficit and return deficit. The moderating effects of social capital inequality are also examined.

This study aims to investigate customer experience (CE) and its relationship with intermediate variables to analyze the impact of digital banking (DB) on banks’ financial performance (FP) before Covid-19 and during the lockdown in Vietnam.

These research data are from a survey of Vietnamese customers. The survey was deployed to a sample of 238 and 218 customers of 20 Vietnamese commercial banks via email in 2018Q4 and 2020Q2, respectively. FP is measured using banks’ quarterly financial statements before Covid-19 and during the lockdown.

CE with DB had a significant and positive impact on FP via customer satisfaction before Covid-19, while the other two intermediate variables (word-of-mouth [WoM] and trust) had no considerable impact. During the lockdown, only WoM had a positive impact on FP. These findings indicate that before Covid-19, when customers could easily interact with their bank through many touchpoints, customer satisfaction with DB services created higher FP for the bank. However, during the lockdown, DB became the customer’s main touchpoint and WoM mediated the CE–FP relationship.

During the national lockdown from the beginning of the Covid-19 pandemic in January 2020, customers in Vietnam may have had different experiences with DB when no alternate modes of payment were available. The study uses Covid-19 as a moderator variable to offer different viewpoints and findings related to CE with DB and its impact on FP.

This study aims to investigate the trend of research on universities and accountability (UAA) in Southeast Asian (SEA) countries.

A total of 115 journal articles, conference papers, books and book chapters were obtained from the Scopus database spanning the years 1996–2023. These documents were subsequently analyzed using bibliometric methods.

The majority of UAA in SEA documents were published between 2007 and 2023 (106 documents, 92.19%). Scholars from both SEA countries and outside the region, particularly Australia, co-authored UAA in SEA documents. While scholars from Vietnam contributed the highest number of UAA in SEA publications (30 documents), scholars from Australia received the highest number of citations (878 citations). Collaboration between Vietnam and Australia emerged as the most productive partnership in conducting studies on UAA in SEA. Additionally, UAA in SEA documents were published not only in education-related outlets but also in other sectors, particularly in public policy. Furthermore, studies on UAA in different countries exhibited both similar and dissimilar interest keywords.

This study represents the first bibliometric analysis focusing on UAA in SEA literature. The insights and implications derived from this study are valuable for future researchers, university leaders and policymakers.

This study aims to discover the impact of failure factors on stakeholder coordination performance (SCP) in the finishing phase of high-rise building projects.

Firstly, this study identifies potential failure factors affecting coordination performance as well as criteria for measuring SCP in the finishing phase of high-rise building projects. Afterwards, a survey questionnaire is designed to collect data from high-rise building projects in Vietnam. Using the factor analysis method, the study discovers the failure constructs. A structural equation model is then built to uncover the relationships between failure constructs and SCP.

The study identified four failure constructs which could significantly affect SCP, namely traditional adversarial relationship (TAR), incompetent parties (IP), poor project planning and organization (PPO) and delays of parties toward construction works (DP). The developed model indicated that TAR, PPO and IP significantly affected stakeholders' coordination performance in the finishing phase of high-rise building projects.

The results of the study fill the gap in knowledge by discovering the causal relationships between failure constructs and SCP in high-rise building projects. The results might provide an initial guideline for stakeholders during the finishing phase of high-rise building projects to enhance their coordination performance.