Dinh Nghia Do and Stanislaw Osowski
The paper presents the application of neural network to the classification of the closed contours forming different shapes. The shape is represented by ‐ samples of complex…
Abstract
The paper presents the application of neural network to the classification of the closed contours forming different shapes. The shape is represented by ‐ samples of complex numbers zk = xk+ jyk where xk and yk are the samples in the x‐y plane and j is the complex operator. The same shapes may vary in scale, be rotated and translated in arbitrary proportion and be distorted by the noise. To obtain the classification invariant to all these factors the preprocessing techniques based on the application of Fourier transformation of the samples have been applied. The Fourier coefficients form the input data to the neural classifier. Different shapes have been checked in numerical experiments and the results have proved good performance of the developed neural classifier and its relative insensitivity to the noise.
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Trong Nghia-Nguyen, Sanjay Kumar Shukla, Dang Dinh Chung Nguyen, Le Gia Lam, Phuoc H-Dang and Phu-Cuong Nguyen
This paper aims to present a new discrete method to predict average excess pore pressure and degree of consolidation for soft ground using prefabricated vertical drains under…
Abstract
Purpose
This paper aims to present a new discrete method to predict average excess pore pressure and degree of consolidation for soft ground using prefabricated vertical drains under time-dependent surcharge and/or vacuum loading and multi-soil layers.
Design/methodology/approach
The drain is discretized into a number of mesh points at which the average excess pore pressure is estimated. The conventional Laplace technique is used to solve the analytical equations. The proposed method is validated with previous findings reported in the literature. Moreover, field measurements are used to verify the accuracy of the proposed method with a case history of ground improvement by prefabricated vertical drains using the vacuum consolidation technique.
Findings
In comparison to past studies, this new discrete method is simpler to be implemented in a spreadsheet calculation to achieve a rational solution with less computational time for similar consolidation problems. Moreover, the current approach also incorporates a solution for multi-soil layers, which can hardly be derived by analytical solutions.
Originality/value
According to authors’ knowledge, this is the first-time discrete method by Laplace transform technique is applied for the vertical drain.
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Padmi Nagirikandalage, Ben Binsardi, Kaouther Kooli and Anh Ngoc Pham
The purpose of this study is to investigate the resistance in management accounting practices (MAPs) in a developing economy in the manufacturing and service sectors in Vietnam.
Abstract
Purpose
The purpose of this study is to investigate the resistance in management accounting practices (MAPs) in a developing economy in the manufacturing and service sectors in Vietnam.
Design/methodology/approach
Data collection was carried out using survey questionnaires in Vietnamese language. The questionnaires were distributed to selected respondents from the manufacturing and service organisations in Vietnam. Textual structuralism was used to analyse different categories of data, i.e. survey questionnaires, photos and qualitative texts obtained from the literature.
Findings
The findings indicate that the usage of MAPs is more prevalent in the manufacturing sector than in the service sector. In addition, various traditional and contemporary MAPs are being used concurrently in Vietnam, which challenges the classical twofold dichotomy between mere socialism and mere neoliberalism.
Research limitations/implications
The textual and photographic structuralism is used in this study to analyse primary data (geography and society and time) in a static setting. Hence, it does not analyse the research phenomena in a dynamic equilibrium setting to view the development of the research phenomena over time. Further research could expand data collection to include longitudinal and dynamic settings.
Practical implications
MAPs can be implemented in economic systems ranging from command to capitalist systems. Although most countries in the world follow a mixed economic system, specific MAPs could be designed for a transitional economic system such as that of Vietnam. This affects both theorists and practitioners in Vietnam applying sustainable MAPs to boost a country's competitiveness during transition.
Originality/value
This study expands understanding of the conformity of MAPs in relation to economic systems under the Communist Party of Vietnam (CPV) – the ruling party of the Socialist Republic of Vietnam. Understanding the differences in the way these MAPs are utilised constitutes an essential area of the accounting discipline to advance MAPs in Vietnamese enterprises and progress theoretical development of sustainable MAPs.
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Nguyen Thi Minh Thuy and Nguyen Dinh Thi
The paper aims to research the applications of topological geometry to the architectural concept design process and their combination with the modern digital technology to find…
Abstract
Purpose
The paper aims to research the applications of topological geometry to the architectural concept design process and their combination with the modern digital technology to find novel architectural spaces and forms which are dynamic, easily adaptable to the context and surroundings.
Design/methodology/approach
The article uses the method of studying the existing literature on topological geometry and architectural design theory including design thinking, architectural design methods and architectural compositions to analyze and compare them with architectural practices and suggest new topological design tools and methods. Moreover, the paper tests the proposals with a number of preliminary design research experiments. In addition, graphic design software, parametric design, building information modeling (BIM) and digital development trends in architecture were explored and experienced to reveal the application potential of topological design thinking and methods in the trend of architectural digitization.
Findings
The paper has analyzed, synthesized and systematized the basic theories of topological geometry in order to clarify their applications in the architectural concept design process. On that basis, the paper proposes a novel topological design thinking and method for finding rich diversified architectural ideas and forms based on original invariant design constraints. Finally, the paper clarifies the combination as well as the mutual, motivating relationship between topological geometry and modern digital technologies when applied to architectural design.
Originality/value
The research contributes a novel design thinking and method based on topological geometry combined with modern digital technology to the architectural design theory. It will be a valuable tool capable of suggesting architects how to think and innovate in architecture in the era of industrial revolution 4.0.
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Nhat Lam Duyen Tran, Roberto F. Rañola,, Bjoern Ole Sander, Wassmann Reiner, Dinh Tien Nguyen and Nguyen Khanh Ngoc Nong
In recent years, climate-smart agriculture (CSA) was introduced to Vietnam to enhance farmers’ resilience and adaptation to climate change. Among the climate-smart agricultural…
Abstract
Purpose
In recent years, climate-smart agriculture (CSA) was introduced to Vietnam to enhance farmers’ resilience and adaptation to climate change. Among the climate-smart agricultural technologies (CSATs) introduced were water-saving techniques and improved stress tolerant varieties. This study aims to examine the determinants of farmers’ adoption of these technologies and the effects of their adoption on net rice income (NRI) in three provinces as follows: Thai Binh (North), Ha Tinh (Central) and Bac Lieu (South).
Design/methodology/approach
Determinants of adoption of CSATs and the adoption effects on NRI are analyzed by using a multinomial endogenous switching regression framework.
Findings
The results showed that gender, age, number of family workers, climate-related factors, farm characteristics, distance to markets, access to climate information, confidence on the know-how of extension workers, membership in social/agricultural groups and attitude toward risk were the major factors affecting the decision to adopt CSATs. However, the effects of these factors on the adoption of CSATs varied across three provinces. These technologies when adopted tend to increase NRI but the increase is much greater when these are combined.
Practical implications
It is important to consider first the appropriateness of the CSA packages to the specific conditions of the target areas before they are promoted. It is also necessary to enhance the technical capacity of local extension workers and provide farmers more training on CSATs.
Originality/value
This study is the first attempt to identify key determinants of adoption of CSATs either singly or in combination and the adoption effects on NRI in Vietnam.
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Thi Kieu Van Tran, Ehsan Elahi, Liqin Zhang, Habibullah Magsi, Quang Trung Pham and Tuan Minh Hoang
The purpose of this paper is to estimate a recent trend in climate change and its impact on livelihood of community living in Nam Dinh province, Vietnam. Further, it aims to…
Abstract
Purpose
The purpose of this paper is to estimate a recent trend in climate change and its impact on livelihood of community living in Nam Dinh province, Vietnam. Further, it aims to increase the government attention for adaptation measures by providing awareness of climate change and its negative impacts on livelihood.
Design/methodology/approach
For study purpose, cross-sectional and secondary data sets were used. The community perceptions about climate change were recorded by face-to-face interviews of 500 respondents from Nam Dinh province, Vietnam in April 2015 by using a well-structured questionnaire, whereas secondary data were collected from the statistical yearbook of General Statistics Office of Vietnam. To accomplish the study objectives, Cobb–Douglas production function and Likert scale were used to estimate the community perceptions of climate change and impact of climate change on livelihood, respectively.
Findings
Results depict that climate change negatively impacted on the productivity of rice and livestock. Particularly, frequently occurring of droughts, floods and salinity intrusion negatively impacted on rice productivity, while livestock productivity is decreased by frequent occurring of flood storms in study area.
Originality/value
The study results suggest a government support is essential to achieve sustainable livelihoods for coastal communities living in the Red River Delta, particularly some adaptation measures in the context of climate change are required in study area.
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Ngoan Thi Dinh, Luong Dinh Hai and Hiep-Hung Pham
Employability has long been a concern of scholars because of its complicated nature and changes in the requirements in labor markets to meet the new requirements of the Industrial…
Abstract
Purpose
Employability has long been a concern of scholars because of its complicated nature and changes in the requirements in labor markets to meet the new requirements of the Industrial Revolution 4.0 and globalization. However, there has not yet been much systematic investigation of the existing literature tracing the trends, changes and developments in employability research. This paper aims to fill this void by analyzing data obtained from the Scopus dataset from 1972 to 2019.
Design/methodology/approach
A total of 1,703 Scopus-indexed articles were filtered from 7,885 documents. The results reflect a rapidly emerging literature on employability, given the worldwide interest in this topic. Using descriptive statistics and bibliometric analyses, the review identified trends in employability research, whose impact has been sustained for several decades.
Findings
With science mapping, the conceptual structure of scientific disciplines was visualized, highlighting three main schools of thought including employers’ requirements and higher education institutions’ preparation; the antecedents of employability; and the role of work-integrated learning in enhancing employability.
Originality/value
The paper calls for more integrative research focusing on personal agency with the development of career paths inside organizations as well as for a more focus on a multilevel perspective exploring both individuals' and organizations’ perceptions.
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This chapter provides information on the development of Vietnamese education under the influence of global forces based on the analysis of relevant education research and policies…
Abstract
This chapter provides information on the development of Vietnamese education under the influence of global forces based on the analysis of relevant education research and policies using Wolhuter’s frameworks. In the process of coming up with ways to develop education in the face of different influences of globalization, besides having reactions with patterns commonly found in countries around the world, Vietnam also has responses that reflect its own political, sociocultural and economic characteristics. The state still plays a controlling role in education at all levels and many culture-related features that have existed throughout the country’s history have hardly changed, namely aspects related to teachers, learners and teaching and learning methods. To sustain its education in the globalized era, Vietnam must make more efforts in various aspects such as the link between education and employment, the logic of education objectives, the feasibility and appropriateness of curricula, quality of education, especially of higher education and equality in education for underprivileged groups.
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This paper aims to investigate the impact of the COVID-19 pandemic on university students' employability skills and give insights into preparation for future crises that may…
Abstract
Purpose
This paper aims to investigate the impact of the COVID-19 pandemic on university students' employability skills and give insights into preparation for future crises that may happen.
Design/methodology/approach
Employing an interpretative phenomenological approach with the frame of social cognitive theory, the current study examined the changes in environmental, behavioral and personal elements of human functioning for employability skills being affected by the conditions during the pandemic.
Findings
Findings based on ten in-depth semi-structured interviews with students at universities in Vietnam highlighted that the global pandemic performed as both challenge and an opportunity for employability skills development, yet the extent to which the students can benefit from the new studying conditions attributed to each individual's initiatives in taking advantages of resources and acting against difficulties.
Originality/value
Whether the pandemic became a hindrance or a motivation for students' employability skills to develop and whether students effectively utilized an agency to overcome challenges and improved their skills after the pandemic have not yet been investigated. This study added to the body of literature regarding self-regulated learners by demonstrating agency in the learning process as well as how to manage careers and improve employability skills by making use of resources in disconnected settings.