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Dec 16, 2019

Exact analysis of MHD Walters’-B fluid flow with non-singular fractional derivatives of Caputo-Fabrizio in the presence of radiation and chemical reaction

The present article reports the applications of Caputo-Fabrizio time-fractional derivatives. This article generalizes the idea of unsteady MHD free convective flow in a Walters.-B fluid with heat and mass transfer study over an exponential isothermal vertical plate embedded in a porous medium. The governing equations are converted into dimensionless form and extended to fractional model. The generalized Walters-B fluid model has been solved analytically using the Laplace transform technique. From the general solutions we reduce limiting solutions when to the similar motion for Newtonian fluid. The corresponding expressions for and Nusselt and Sherwood numbers are also assessed. Numerical results for velocity, temperature and concentration are demonstrated graphically for various factors of interest and discussed. As a result, we have plotted the influence of fractional parameter on fluid flow and drawn comparison between fractional Walters’-B and fractional Newtonian fluid and found that fractional Newtonian fluid is faster than fractional Walters’-B fluids.

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May 18, 2021

India’s demographic dividend or disaster? Mismanaged factors of production—Land, labor, infrastructure, cities

India entered its so-called demographic dividend around 2005—expected to last until 2055. India has already utilized almost a third of the period of its demographic dividend—it saw a period of explosive growth from 2003–2012—but has not been able to sustain that growth. And since 2012, growth has generated less and less employment, as it has turned inward, and so it is not helping the working-age population get usefully employed. The labor force participation rate for women has been low and is now falling. What can be done to use India’s underlying factors of production better to generate greater, more inclusive, and sustained prosperity for its citizens? These second-generation reforms are not easy, as they need cooperative federalism and much broader consensus, but without them India’s demographic dividend may become a disaster.

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Oct 19, 2021

Analysis of influence of ripple parameters of heat storage elements on flow and heat transfer performance

In order to study the influence of the corrugated angle and width of enamel heat storage element on the flow and heat transfer performance, a certain enamel heat storage element was numerically simulated by FLUENT software, and the variation curves of internal flow field velocity, temperature distribution, Nusselt number and drag coefficient with Reynolds number were obtained when the corrugated angle and width of the heat storage element were different. The

simulation results show that when the ripple inclination increases from 20° to 60°, the resistance coefficient of the heat storage element increases, and the Nusselt number increases, and the increase of the resistance coefficient is greater than that of the Nusselt number; when the ripple width increases from 6 mm to 10 mm, the increase of resistance coefficient is small, and the increase of Nusselt number is large.

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Sept 9, 2024

A systematic review of information literacy models in Yunnan province’s physical education faculty

This research aimed to explore the concerning characteristics of information literacy in the physical education faculty of higher education institutions in Yunnan Province. This study provides a systematic meta-analysis of 33 peer-reviewed papers from 2019 to 2023. It discusses that information literacy includes basic research skills, critical thinking, and problem-solving, which include their application in the learning process. The paper describes some approaches that can be used to implement information literacy into teaching and learning, including courses with learning objectives, learner-centered approaches, and institutional support. The study also explored technology and its relation to adopting competencies for the growing technologies’ evolution within the region’s education sector. In addition, the following factors could have enhanced the process: time constraints, differences in discipline, and variations in the usage of information technology. The results indicate the need for context-specific professional learning and policy intervention to facilitate the practice of physical education faculty in Yunnan. The information collected here serves as the framework for effective regional policies regarding education, curriculum, and teacher training, among other related aspects.

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Jan 26, 2024

Improving rural property tax instruments: A case study of Sinaloa, Mexico

The objective of this work on the Rural Property Tax is to make a proposal to improve the instruments for statistical information on both income and investment spending. A qualitative methodology is proposed to make transparent from which community the tax is generated and how to decide the expenditure in public works for rural communities. Finally, public policy recommendations are made such as the suggestion that investment spending should not be concentrated in a small group of communities but should be distributed strategically for the well-being of the rural population. In this regard, it is important that the municipal government reaches agreements with ejido commissaries, syndics and commissaries so that there is a positive economic, social, cultural and political impact. Likewise, the creation of fiscal observatories to follow up on the route of income generated by the tax and the investment spending executed with the said resources. Truth is that the great importance of this tax for Sinaloa’s municipal public finances has not yet been fully appreciated. Among the findings was the preferential treatment given to taxpayers engaged in aquaculture and vegetable exports by paying a lower rate than that established in the law; while agricultural and livestock activities pay a higher rate; there is also a lack of transparency in the selection process of the communities that will benefit from investments for public works. Recommendations for future research may be to address how the public works bidding process is conducted; what experiences exist of tax observatories that monitor both the collection and the correct exercise of public expenditure of this tax; also explore why there is no public policy focused on benefiting the most marginalized communities in Sinaloa’s municipalities with public works.

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Dec 19, 2024

Modeling of leadership behavior framework for road usage charge management in Vietnam

Leadership behavior is a critical component of effective management, significantly influencing organizational success. While extensive research has examined key success factors in road management, the specific role of leadership behaviors in road usage charging (RUC) management remains underexplored. This study addresses this gap by identifying and analyzing leadership behavior dimensions and their impact on management performance within the RUC context. Using a mixed-methods approach, focus group discussions with industry practitioners were conducted to define eight leadership behavior dimensions: Central-Level Leadership Guidance (LE1), Local-Level Leadership Guidance (LE2), Central-Level Leadership Commitment (LE3), Local-Level Leadership Commitment (LE4), Subordinate Understanding from Central-Level Leadership (LE5), Subordinate Understanding from Local-Level Leadership (LE6), Work Motivation (LE7), and Understanding Rights and Obligations (LE8). These dimensions were further validated through a quantitative survey distributed to 138 professionals involved in RUC management in Vietnam, with the data analyzed using structural equation modeling (SEM) and partial least squares (PLS) estimation. The findings revealed that LE3 (Central-Level Leadership Commitment) had the strongest direct impact on management performance (MP) and mediated the relationships between other leadership dimensions and management outcomes. This study contributes to the theoretical understanding of leadership in RUC management by highlighting the centrality of leadership commitment and offering practical insights for improving leadership practices to enhance organizational performance in infrastructure management.

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