Ning Zhang, Hong Zheng, Chi Yuan and Wenan Wu
This article aims to present a direct solution to handle linear constraints in finite element (FE) analysis without penalties or the Lagrange multipliers introduced.
Abstract
Purpose
This article aims to present a direct solution to handle linear constraints in finite element (FE) analysis without penalties or the Lagrange multipliers introduced.
Design/methodology/approach
First, the system of linear equations corresponding to the linear constraints is solved for the leading variables in terms of the free variables and the constants. Then, the reduced system of equilibrium equations with respect to the free variables is derived from the finite-dimensional virtual work equation. Finally, the algorithm is designed.
Findings
The proposed procedure is promising in three typical cases: (1) to enforce displacement constraints in any direction; (2) to implement local refinements by allowing hanging nodes from element subdivision and (3) to treat non-matching grids of distinct parts of the problem domain. The procedure is general and suitable for 3D non-linear analyses.
Research limitations/implications
The algorithm is fitted only to the Galerkin-based numerical methods.
Originality/value
The proposed procedure does not need Lagrange multipliers or penalties. The tangential stiffness matrix of the reduced system of equilibrium equations reserves positive definiteness and symmetry. Besides, many contemporary Galerkin-based numerical methods need to tackle the enforcement of the essential conditions, whose weak forms reduce to linear constraints. As a result, the proposed procedure is quite promising.
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Wenan Wu and Hong Zheng
This study aims to introduce the hybrid finite element (FE) – meshfree method and multiscale variational principle into the traditional mixed FE formulation, leading to a stable…
Abstract
Purpose
This study aims to introduce the hybrid finite element (FE) – meshfree method and multiscale variational principle into the traditional mixed FE formulation, leading to a stable mixed formulation for incompressible linear elasticity which circumvents the need to satisfy inf-sup condition.
Design/methodology/approach
Using the hybrid FE–meshfree method, the displacement and pressure are interpolated conveniently with the same order so that a continuous pressure field can be obtained with low-order elements. The multiscale variational principle is then introduced into the Galerkin form to obtain stable and convergent results.
Findings
The present method is capable of overcoming volume locking and does not exhibit unphysical oscillations near the incompressible limit. Moreover, there are no extra unknowns introduced in the present method because the fine-scale unknowns are eliminated using the static condensation technique, and there is no need to evaluate any user-defined stability parameter as the classical stabilization methods do. The shape functions constructed in the present model possess continuous derivatives at nodes, which gives a continuous and more precise stress field with no need of an additional smooth process. The shape functions in the present model also possess the Kronecker delta property, so that it is convenient to impose essential boundary conditions.
Originality/value
The proposed model can be implemented easily. Its convergence rates and accuracy in displacement, energy and pressure are even comparable to those of second-order mixed elements.
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Ruiqian Jia, Wenan Hu and Shuwen LI
The purpose of this study is to examine the potential process through which leadership exerts impacts on organizational innovation. A thorough analysis was conducted by…
Abstract
Purpose
The purpose of this study is to examine the potential process through which leadership exerts impacts on organizational innovation. A thorough analysis was conducted by highlighting the contribution of ambidextrous leadership to organizational innovation.
Design/methodology/approach
Data were collected from companies located in mainland China. A total of 200 cases were included in the final sample. Hierarchical regression analysis was adopted to test the hypotheses in this study.
Findings
The results showed that exploitation knowledge search and exploration knowledge search partly mediated the relationship between ambidextrous leadership and organizational innovation, respectively. Strategic flexibility could positively moderate the relationship between exploitation knowledge search and organizational innovation and had no significant impacts on moderating the relationship between exploration knowledge search and organizational innovation.
Research limitations/implications
In this study, not only were managers provided with a sophisticated understanding of how and when ambidextrous leadership could influence organizational innovation but also concrete strategies were given for enhancing organizational innovation.
Originality/value
In this study, the interaction among ambidextrous leadership, knowledge search and organizational innovation were elucidated and the moderating impacts of strategic flexibility on the relationship between knowledge search and organizational innovation were explored. The findings of this study enriched the literature on leadership, knowledge management and innovation.
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Dina Amaro, Ana Maria Caldeira and Cláudia Seabra
The twenty-first century has been characterized by the intensification of concerns related to tourism safety and security. These issues are playing an increasingly significant…
Abstract
The twenty-first century has been characterized by the intensification of concerns related to tourism safety and security. These issues are playing an increasingly significant role over recent years, due to the increase of terrorist attacks in several countries, political instability, natural disasters, epidemics and, more recently, the COVID-19 pandemic. Understanding tourist safety and security in the tourism context is, thus, critical to increasing the competitiveness and attractiveness of tourist destinations.
Through the bibliometric methods of performance analysis and science mapping, this study aims to contribute to the advancement of knowledge on tourist safety and security at the destination.
A total of 445 records published between 1989 and 2021, covering 191 academic journals and 1,000 authors from 91 different countries, were analysed.
The main findings show that this research field has attracted a substantial and growing interest of researchers, institutions, journals and countries. Opportunities for future research are related to decision making, tourist behaviour, risk perception, tourism safety, destination image, safety engineering and sustainable development.
In the post-pandemic context, this research field can be critical to providing a set of tailored strategies to improve tourists' safe destination environment and increase tourism destinations' competitiveness and attractiveness.
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Afzal Mohammad Khaled and Yong Jin Kim
Logistical facility location decisions can make a crucial difference in the success or failure of a company. Geographical Information Systems (GIS) have recently become a very…
Abstract
Logistical facility location decisions can make a crucial difference in the success or failure of a company. Geographical Information Systems (GIS) have recently become a very popular decision support system to help deal with facility location problems. However, until recently, GIS methodologies have not been fully embraced as a way to deal with new facility location problems in business logistics. This research makes a framework for categorizing empirical facility location problems based on the intensity of the involvement of GIS methodologies in decision making. This framework was built by analyzing facility location models and GIS methodologies. The research results revealed the depth of the embracement of GIS methodologies in logistics for determining new facility location decisions. In the new facility location decisions, spatial data inputs are almost always coupled with the visualization of the problems and solutions. However, the usage of GIS capability solely (i.e. suitability analysis) for problem solving has not been embraced at the same level. In most cases, the suitability analysis is used together with special optimization models for choosing among the multiple alternatives.
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Filipe Dias, Paulo Rita, Nuno António and Celeste Vong
This study examines the impact of online firestorms on the financial performance of corporate social responsibility (CSR) campaigns by analyzing Twitter data and stock market…
Abstract
Purpose
This study examines the impact of online firestorms on the financial performance of corporate social responsibility (CSR) campaigns by analyzing Twitter data and stock market trends.
Design/methodology/approach
Four publicly known campaigns that received backlash were studied, involving data from 76,242 tweets.
Findings
This investigation revealed that organizations could still achieve financial gains despite experiencing backlash. The duration of an online firestorm typically ranged between three to six days. Also, a positive correlation was found between online sentiment on social media and stock market prices.
Originality/value
The findings provide significant insights for both academia and organizations, demonstrating that CSR campaigns involved in online firestorms do not necessarily result in adverse financial outcomes. Overall, this study provides valuable perspectives on the effects of CSR campaigns and their potential impacts on financial performance.
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Meharaj Banu Abdul Sathar, Malini Rajagopalan, Shaik Mohamed Naina and Satyanarayana Parayitam
This study aims to investigate the relationship between perceived usefulness, ease of use and adoption of online banking by customers in the Indian context. Using the technology…
Abstract
Purpose
This study aims to investigate the relationship between perceived usefulness, ease of use and adoption of online banking by customers in the Indian context. Using the technology acceptance model (TAM) as the base, this study underscores the importance of perceived enjoyment, security and trust in influencing customer satisfaction.
Design/methodology/approach
Using a structured survey instrument, this paper gathered data from 476 respondents in the southern part of India. First, the instrument’s psychometric properties were tested, and hypotheses were tested using Hayes’s PROCESS macros.
Findings
The results indicated that (i) perceived usefulness and perceived ease of use are positively related to the attitude of the consumers to use online banking, (ii) attitude to use is positively related to adoption intention and (iii) adoption intention positively predicts customer satisfaction. The results also reveal that (i) perceived enjoyment moderates the relationship between attitude to use and adoption intention, (ii) trust moderates the relationship between adoption intention and customer satisfaction and (iii) security (second moderator) moderates the moderated relationship between trust (first moderator) and adoption intention on customer satisfaction.
Research limitations/implications
As with any survey research, self-report measures have the inherent problems of common method bias and social desirability bias. However, the authors have taken adequate care to minimize these limitations. In addition, the research has implications for consumer behavior concerned with online banking.
Practical implications
This study contributes to both practicing managers and the literature on online banking. The study suggests that bank managers need to focus on ensuring security and earning customers’ trust to motivate them to adopt online banking.
Social implications
The study contributes to society by unraveling the antecedent conditions leading to accepting innovative changes initiated by banks. Especially in rural and cooperative banks, customers adopting online banking helps save their time and energy in visiting the physical locations of banks.
Originality/value
This study provides new insights into the complex relationships among variables contributing to customer satisfaction. The double-layered moderated moderated-mediation conceptual model developed and tested in this study is a novel idea that makes a significant contribution to the growing literature on online banking.
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Ali Roziqin, Alferdo Satya Kurniawan, Yana Syafriyana Hijri and Kismartini Kismartini
Discussions about digital tourism continue to increase among scholars as Information Communication and Technology (ICT) infrastructure develops. Dynamic changes due to…
Abstract
Purpose
Discussions about digital tourism continue to increase among scholars as Information Communication and Technology (ICT) infrastructure develops. Dynamic changes due to technological aspects have given rise to various developments in the tourism industry. Therefore, this study aims to evaluate the scientific structure of the development of digital tourism topics through a bibliometric analysis approach. In total, 102 publications from research on digital tourism were taken from Scopus database between 2001 and 2021, for further bibliometric analysis using the VOSviewer application. Interesting findings describe the most cited digital tourism publications, the contribution of digital tourism by various authors, institutions, countries, co-citation analysis, bibliographic coupling, and co-occurrence for the main trends of digital tourism. This study compiles a detailed review of digital tourism research. This article adds substantial value to the digital tourism topic by analyzing bibliometric data. It provided scientific information regarding digital tourism for other researchers and future research.