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The study aims to assess the heater and cooler positional impacts systematically using four different quadrantal cavities filled with hybrid nanofluid, keeping the curved surface adiabatic under the orientated magnetic fields. Both heat transfer and entropy generation analyses are performed for a hybrid nanofluid flow in a quarter circular cavity considering different orientations of magnetic fields. The investigation is focused to assess the heater and cooler positional impacts systematically using four different quadrantal cavities (first to fourth quadrantal cavities), keeping the curved surface always adiabatic. The impacts of pertinent variables like Rayleigh number, Hartmann number and volumetric concentration of hybrid nanofluid on heat transfer characteristics are in consideration with the second law of thermodynamics. The analysis includes the thermal, viscous and magnetic aspects of entropy generation.

After validating against the experimental results, the present work explores numerically following the Galerkin weighted finite element technique. The solution is obtained through an iterative process satisfying the convergence limit of 10⁻⁸ and 10⁻¹⁰ for the maximum residuals and the mass defect, respectively.

It revealed that the mutual exchange of heater-cooler positions on the adjacent straight edges of the quadrant cavity does not have any impact on the flow direction. Although the magnitude of flow velocity enhances, the sidewall plays a decision-making role in the formation of a single circulation vortex. It also shows that thermal entropy production is the main cause behind thermodynamic irreversibility. The second or third quadrantal arrangement could have been opted as the best configuration of the heater-cooler position for achieving superior heat transfer. The Lorentz force plays a great role to moderate the heat transfer process. The maximum entropy generation is located, as expected, at the heating-cooling junction point.

There are plenty of prospects for extension of the present research concept numerically or experimentally, adopting three-dimensional analysis, working fluids, boundary conditions, etc. In fact, the study could be carried out for unsteady or turbulent fluid flow.

As the position of the heated source and cold sink on the enclosure geometry can significantly alter the thermo-fluid phenomena, this kind of analysis is of utmost relevance for the further development of efficient heating/cooling arrangements and proper management of the devices subjected to magnetic field applications. This original contribution could be a potentially valuable source for future research and exploration pertaining to a thermal system or device, like heat exchangers, solar collectors, thermal storage, electronic cooling, food and drying technologies and others.

In the literature, an inadequate number of works have focused on a quadrantal cavity, mostly considering the first quadrant of the circle. However, during practical applications, it is possible that the cavity can take the shape of the other three quadrants too, and the corresponding knowledge on relative performance is still missing. Furthermore, the present investigation includes the existence of magnetic fields at various orientations. The impact analysis of this field-induced Lorentz force on the nanofluid thermal performance is another major contribution from the present work that would enrich the domain knowledge and could be useful for thermal system engineers.

The main purpose of this numerical study is to study on entropy generation in natural convection of nanofluid in a wavy cavity using a single-phase nanofluid model.

The cavity is heated non-uniformly from the wavy wall and cooled from the right side while it is insulated from the horizontal walls. The physical domain of the problem is transformed into a rectangular geometry in the computational domain using an algebraic coordinate transformation by introducing new independent variables ξ and η. The governing dimensionless partial differential equations with corresponding initially and boundary conditions were numerically solved by the finite difference method of the second-order accuracy. The governing parameters are Rayleigh number (Ra = 1000-100000), Prandtl number (Pr = 6.82), solid volume fraction parameter of nanoparticles (φ = 0.0-0.05), aspect ratio parameter (A = 1), undulation number (κ = 1-3), wavy contraction ratio (b = 0.1-0.3) and dimensionless time (τ = 0-0.27).

It is found that the average Bejan number is an increasing function of nanoparticle volume fraction and a decreasing function of the Rayleigh number, undulation number and wavy contraction ratio. Also, an insertion of nanoparticles leads to an attenuation of convective flow and enhancement of heat transfer.

The originality of this work is to analyze the entropy generation in natural convection within a wavy nanofluid cavity using single-phase nanofluid model. The results would benefit scientists and engineers to become familiar with the flow behaviour of such nanofluids, and will be a way to predict the properties of this flow for the possibility of using nanofluids in advanced nuclear systems, in industrial sectors including transportation, power generation, chemical sectors, ventilation, air-conditioning, etc.

The purpose of this paper is to address the prerequisites for achieving coordinated action in reverse distribution systems. It is an underlying assumption in distribution, logistics and supply chain management that a higher level of coordination between the actors is superior to a lower, and a higher levels of coordination will in turn lead to increased performance. Coordination requires the actors to implement efficient coordination mechanisms. The separate distribution flows need to be coordinated individually with appropriate coordination mechanisms. Furthermore, actors need to pay close attention to how different coordination mechanisms co‐exist in order to achieve a higher level of coordinated action and superior system performance.

The paper is based on a comparative case study of reverse distribution systems for electrical and electronic products in Norway.

The empirical results indicate that lack of coordination across flows increases costs and reduces the service level, and a low level of coordinated action is achieved. In contrast, it is also found that well functioning coordination mechanisms across flows decrease costs and increase the level of service, indicating that coordinated action is achieved. It is also found that end‐user characteristics are driving forces leading to different types of reverse distribution systems.

The paper builds an important bridge between separate flows in distribution systems, and addresses a void in distribution research.

This paper aims to identify content strategies on social media that influence engagement and to analyze those operations to describe important features for co-creation and trust.

This paper addresses the question of how social media content can influence engagement by using a medium-sized Swedish company for an empirical case study. This empirical study is based on a participatory action research methodology. By using the company account on LinkedIn, the authors experimented with relational content to understand the effects on customer-perceived value and trust.

Results reveal that action-oriented messages had a more significant impact on engagement than product-oriented messages and value-based messages.

This paper builds on the existing literature in two ways: drawing upon business-to-business relationships and perceived value and using recent advances in the use of social networking sites to understand the value of co-creation through a participatory culture.

The purpose of this paper is to illustrate the development of research based on the IMP approach during the four decades since the inauguration in 1976. The paper presents a network analysis of IMP research based on one of the central IMP frameworks: the ARA model.

The main activity analysed is the annual IMP conference. The development over time is described by comparison of three conferences (1984, 1998 and 2012) with regard to the themes of the papers presented. In addition, some joint research projects are described. The most central resources are the research frameworks and findings presented in books and journals. To illustrate this dimension, the authors have traced all IMP publications that had been cited more than 100 times in 2013. In the actor layer, the authors investigated the development over time of the distribution of publications and conference presentations on research groups.

The paper shows how IMP has evolved into a research network around common themes of which business relationships and networks are the most significant. The activities of various research groups have become increasingly interlinked through joint research programmes, annual conferences and seminars, a website and a dedicated journal.

The paper provides a detailed illustration of the development of the IMP network. The description of this process is of general relevance as an example of how research ideas can develop and become established in terms of a distinct research network.

The purpose of this study is to address the challenges of teaching sustainable development to computer engineering students. Part of the problem is that they perceive the topic as irrelevant for their future profession.

To address this challenge, we introduced a project element into a course on sustainable development where the students developed applications for sustainable mobility together with the local public transport authority, an academic institution and a multinational telecom company.

The findings conclude that the course changes improved the overall student satisfaction while succeeding in anchoring sustainable development in a context which the students can relate to. The collaboration was also perceived as fruitful by the external stakeholders who encouraged the students to stay in touch for their bachelor theses and internships.

The theoretical implication is a first attempt in integrating sustainable development education with entrepreneurial experiences, whereas the practical implication is a description of how the integration can be realized.

The contribution is therefore of value for both educational researchers to open novel research opportunities and for teachers to describe new possibilities for sustainable development education.

The contribution describes how entrepreneurial experiences can be used to motivate engineering students in mandatory courses on sustainable development and ethics. The approach is novel in that the approach has not been described earlier in this context.

This study aims to identify the trends that have changed in the field of construction management over the last 20 years.

In this study, 3,335 journal articles published in the years 2000–2020 were collected from the Web of Science database in construction management. The authors applied bibliometric analysis first and then detected topics with the latent Dirichlet allocation (LDA) topic detection method.

In this context, 20 clusters from cluster analysis were found and the topics were extracted in clusters with the LDA topic detection method. The results show “building information modeling” and “information management” are the most studied subjects, even though they have emerged in the last 15 years “building information modeling,” “information management,” “scheduling and cost optimization,” “lean construction,” “agile approach” and “megaprojects” are the trend topics in the construction management literature.

This study uses bibliometric analysis. The authors accept that the co-citation and co-authorship relationship in the data is ethical. They accept that honorary authorship, self-citation or honorary citation do not change the pattern of the construction management research domain.

There has been no study conducted in the last 20 years to examine research trends in construction management. Although bibliometric analysis, systematic literature reviews and text mining methods are used separately as a methodology for extracting research trends, no study has used enhanced bibliometric analysis and the LDA topic detection text mining method.

The purpose of this technical paper is to investigate the friction and wear behavior of inexpensive and durable cutting tools, developed for wood machining using duplex treatment.

Cr–(WC–Co) coatings were deposited onto carburized low-alloy steel substrate by a reactive magnetron sputtering. The total coating thickness was approximately 2 μm. Unlubricated wear tests have been performed using a disc sample sliding against an alumina ball (Al₂O₃) and a wood (beech) pin.

The paper provides information about the effect of duplex treatment on the surface properties of low-alloy steel against wood and offers practical help for the researchers in coating topic.

Experimental results showed that sliding wear properties of the selected coatings are strongly dependent on the counter-face material. When tested against alumina balls, the wear mechanisms are oxidative wear followed by a combination of adhesive and abrasive wear, while a combination of an oxidative and adhesive wear was the main wear mechanism observed against a wood pin.