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In recent times, there has been a growing interest in buoyancy-induced heat transfer within confined enclosures due to its frequent occurrence in heat transfer processes across diverse engineering disciplines, including electronic cooling, solar technologies, nuclear reactor systems, heat exchangers and energy storage systems. Moreover, the reduction of entropy generation holds significant importance in engineering applications, as it contributes to enhancing thermal system performance. This study, a numerical investigation, aims to analyze entropy generation and natural convection flow in an inclined square enclosure filled with Ag–MgO/water and Ag–TiO2/water hybrid nanofluids under the influence of a magnetic field. The enclosure features heated slits along its bottom and left walls. Following the Boussinesq approximation, the convective flow arises from a horizontal temperature difference between the partially heated walls and the cold right wall.

The governing equations for laminar unsteady natural convection flow in a Newtonian, incompressible mixture is solved using a Marker-and-Cell-based finite difference method within a customized MATLAB code. The hybrid nanofluid’s effective thermal conductivity and viscosity are determined using spherical nanoparticle correlations.

The numerical investigations cover various parameters, including nanoparticle volume concentration, Hartmann number, Rayleigh number, heat source/sink effects and inclination angle. As the Hartmann and Rayleigh numbers increase, there is a significant enhancement in entropy generation. The average Nusselt number experiences a substantial increase at extremely high values of the Rayleigh number and inclination.

This numerical investigation explores advanced applications involving various combinations of influential parameters, different nanoparticles, enclosure inclinations and improved designs. The goal is to control fluid flow and enhance heat transfer rates to meet the demands of the Fourth Industrial Revolution.

In a 90° tilted enclosure, the addition of 5% hybrid nanoparticles to the base fluid resulted in a 17.139% increase in the heat transfer rate for Ag–MgO nanoparticles and a 16.4185% increase for Ag–TiO2 nanoparticles compared to the base fluid. It is observed that a 5% nanoparticle volume fraction results in an increased heat transfer rate, influenced by variations in both the Darcy and Rayleigh numbers. The study demonstrates that the Ag–MgO hybrid nanofluid exhibits superior heat transfer and fluid transport performance compared to the Ag–TiO2 hybrid nanofluid. The simulations pertain to the use of hybrid magnetic nanofluids in fuel cells, solar cavity receivers and the processing of electromagnetic nanomaterials in enclosed environments.

Legal systems govern social behaviour. They attempt to regulate order, collective peace and harmonious developments in society. The external social behaviour that law deals with is also a part of internal human behaviour. This external and internal nature of human behaviour, needs to be consciously studied and interlinked when legal systems desire elements of justice, equality, liberty, fraternity, dignity, integrity and unity for social collectivity. These elements, that legal systems guarantee come from an integration of individual and collective life on matters of social, political, economic etc., of various levels. The individuality and collectivity on these matters and levels are deeply psychological and spirited in sense as human behaviour operates through stimulus from inside to leave external effects outside or vice-versa through a function of thought-emotion-sensation-body complex. Thus, we see, our behaviour gets shaped by a two-way process of inner motivation and outer circumstance, individual and collective dimensions on a given matter and level. At this juncture, a critical study on this two-way relation in human behaviour and a set of unifying values to be identified for progressive intersections seem to be the future of legal systems for achieving greater goals of humanity. Additionally, legal systems that deal with justice are now becoming more than social, economic and political justice as new knowledge is revealing interrelations of spirit-mind-body or thought-emotion-sensation-body complex leaving us to think of new dimensions in justice. Thus, spirituality, as an exercise of human experiment and experience, provides a new scope for legal systems to deal with human and social behaviour to achieve order, peace and development. At this juncture, one even finds another unknown dimension gaining grounds and sinking to integrate or bring holistic responses to human problems and social challenges of the collective is the actual linking of spirituality through or with psychology or vice versa. Law and legalities of the thoughts and norms are interspersed in between these two disciplines. This is indeed a welcome trend as the psychological human and the social collective have become the axis on which every wheel of knowledge is tested and allowed to represent as spokes for inclusive, sustainable and harmonious inter-relational movement of things. One might see, know, feel or even ought to bear this interconnection that very often come in the actual spiritual practices where psychological dimensions emerge leading to wholesome experience of the state of our own individual and socio-collective nature. Among many kinds of spiritual experiences and experiments, two of them stand out for our legal consideration. One, an experience of timeless, space-less and boundless consciousness-awareness beyond life and world with which we witness, observe and understand the movement of things inside life and world, without our participation into them. Two, an experience of consciousness-awareness as power and force operating and animating through thought-emotion-sensation-body complex with our active participation in the movement of life and world. The former experience prepares the ground to remain free from all fetters of self-aggrandizing individualization before wider collectivity and, the latter experience prepares us to re-enter into wider collectivity to contribute with a freed sense of individualization, not imprisoned by its ego-aggrandizement that cuts the individual from the collective. These two spiritual experiences, one of the consciousness-awareness of freedom and, another of the consciousness-awareness with all potentials, when allowed to animate inside the human, it gives crucial understanding of the challenges of life and, pro-activation of solutions for those challenges that are extremely crucial for law and legal systems. A power of understanding the knowledge using spiritual experience of these two states of consciousness-awareness along with rationality, reason and logic, a strength operating through concentration of the energies in body aiding movement of knowledge, a harmony releasing itself through motivating-empathy and mutual-collaboration using knowledge and strength and, finally a near-perfect action operating through strategies, stages and steps in organizing daily life, human capital and all kinds of the systems of the world using knowledge, strength and harmony become our positive tools of empowerment. The combination of these two spiritual experiences of consciousness-awareness is useful to legal systems that look for solutions to human crises using interactive nature of individuality and collectivity on all issues of life, world and society. The chapter attempts to demonstrate that this kind of spirituality and its applied processes thus provide us the clue and strategy to achieve what the human nature and social existences of all kinds all over the world seek and aspire in the form of individual as well as collective peace, joy and compassion. It is also argued that this peace, joy and compassion that is spiritual in nature are in fact the origin and source of inspiration and stimulation for social, political and economic equality, liberty and fraternity in law, and the harmony and perfection of these elements seen as the justice that balances everything. The chapter demonstrates how applied spirituality can be used in law in the sense of law-making, judicial-interpretation, executive-governance, legal profession and finally a grand introduction of spirituality and its values into legal academics and research that are waiting to be liberated from the clutches of mere analytical knowledge of life and world moving towards new enriching powers of radiant collective life and wonderful harmonious world.

The purpose of this study is the hydrothermal analysis of the natural convection phenomenon within the heat exchanger containing nanofluids using the lattice Boltzmann method (LBM).

The thermal conductivity as well as dynamic viscosity of the CuO–water nanofluid is estimated using the Koo-Kleinstreuer-Li model. The LBM has been used with unique modifications to make it flexible with the curved boundaries. The local as well as total entropy generation assessment, local Nusselt variation, as well as heatline visualization are used.

The solid volume percentage of the CuO–water nanofluid, a range of Rayleigh numbers (Ra) and thermal settings of internal operational fins and bodies are all factors that have been thoroughly researched to determine their effects on entropy production, heat transfer efficiency and nanofluid flow.

The originality of this work is using a novel numerical method (i.e. curved boundary LBM) as well as the local/volumetric second law analysis for the application of heat exchanger hydrothermal analysis.

Emerging markets face the developmental circumstances of a weak foundation in both manufacturing and services. Although servitization is viewed as an opportunity to realise industry transformation and upgrading, ways for emerging market firms to implement a high-level servitization strategy is still understudied. This study examines combinations of causal conditions for emerging market firms to implement a high level of servitization.

Anchored in the strategy tripod model, this study examines the configurations for implementing a high-level servitization strategy by using fuzzy-set qualitative comparative analysis (fsQCA) and data from the China Stock Market and Accounting Research Database (CSMAR).

The findings identify three kinds of configurations for achieving a high-level servitization strategy: market-cultivational servitization, competition-driven servitization and government-related servitization. Furthermore, the mechanisms for implementing a high-level servitization strategy differ within the regional marketization level and state-owned equity. Specifically, the improvement of the regional marketization level helps manufacturing firms realise a high level of servitization by strengthening service capacity, and state-owned equity helps firms gain distinctive legitimacy to integrate suppliers and providers into the servitization context.

The proposed multilevel perspective frameworks enable manufacturing firms in emerging markets to achieve a high level of servitization strategy.

This paper explores the impact of institutional environment, industry conditions and firm-level microfoundations on servitization, therefore providing a reference framework for emerging market firms interested in implementing high-level servitization strategies.

This study aims to explore how an accessibility database (AD) has been developed and implemented as a tool for facility managers to evaluate and increase the accessibility of public facilities.

Eight participants were strategically sampled for semi-structured interviews, and documents on the AD were gathered. The Consolidated Framework for Implementation Research (CFIR) was used for a directed content analysis of the data. The CFIR domains used for the analysis were: intervention characteristics, outer setting, inner setting, characteristics of individuals and process.

The development and implementation of the AD demonstrated the complexity in assessing and planning for increased accessibility. The communication and iterative processes within the inner as well as with the outer setting was an important part of the development and implementation, as well as anchoring each step locally, regionally and nationally, within public authorities and disability organizations.

The assessments of environmental barriers and the results reported in the AD can serve as a guide for identification of accessibility issues. However, singular identified barriers were reported as a fragmentation of the building regulations, and thereby when retrofitting is carried out, experts who have the competence to suggest solutions based on the entirety need to be involved to reach the goals of increased accessibility and countering of exclusion and discrimination.

By structuring the implementation process by means of the CFIR, facilitators and barriers of using an AD as a basis for retrofitting were revealed. The practical challenges outlined in assessing and increasing accessibility can guide facility managers when considering actions to increase accessibility.

Informal dwellings describe makeshift lodgings made from temporary materials, such as plastic, corrugated iron, sheeting, packing cases, or wood. These units allow low-income groups to informally occupy land and create their habitable space in a phased manner. This article focuses on elements of the urban morphology, such as density, accessibility, and operating assortment of informally built areas in the southern region of Montenegro.

The author examines the urban morphologies of four urban areas, whose informality is traditionally viewed as markers of decline and despair. Using observations, questionnaires, and semi-structured interviews, the investigator maps dwellings in Ulcinj, Budva, Tivat, and Herceg Novi neighbourhoods. The researcher interrogated participants about land distribution during the construction of sheds, buildings' outline and orientation toward the street, and activities performed in their dwellings, such as living, working, and accommodating relatives and guests. This methodology tests the hypothesis, formulated as a deeper understanding of urban morphology for examining the interweaving of informally built settlements with the rest of the city.

A cartographic investigation is used to reframe customary rights of low-income populations to land inclusion and their place in the city. The results clearly show that the location and lifestyle are designed to obfuscate the vulnerable populations from the public view, disconnected from policymaking, and ignored by urban planning projects. However, the interviewees' destinations orientation away from the downtowns represents the possibility of reconfiguring existing urban planning practices. For creating alternative urbanisation, the orientation of less visible neighbourhoods presents a model for building regulations embedded in social forces and cultural habits of all social and ethnic groups.

This study did not address the implementation of social hosing policies and the logistical limitations of realising them by the local and national governments. During firework, the author encountered dwellers outside four studied low-income neighbourhoods in the south region of Montenegro. Mapping morphological elements of these generally small clusters of informal built units are left for future research. Future studies could examine how informality is performed in Montenegro by moderate and high-income groups as an assemblage of different power relationships and urban practices.

The argument is based on counter urbanism as the orientation and destination of less visible neighbourhoods for creating building regulations embedded in social forces and cultural habits of all social and ethnic groups. This study showed that the urban morphology of informality in the coastal cities of Montenegro lays the ground for alternative urban planning practices based on the different interconnection of districts. The outcome is a strong link between different social and ethical groups through self-building practices.

In coastal cities of Montenegro, Roma, Ashkali, and Egyptian live with other low-income groups in unsanitary settlements characterised by poor living conditions, low-quality illegally built housing, no plumbing or sewage systems, and overcrowded urban areas. Mapping morphological elements of less visible urban areas propose shifting from top-down urban planning policies to a participatory model of developing urban areas.

The assemblage of informally built urban areas legitimise place in the city that goes against the housing market's dominant logic and exceeds alternative logics of building production. This article outlined the urban morphologies of four urban areas for turning the image of informality away from decline and despair to lessons of urban interconnection. By creating different maps, the author presented a diverse orientation of four case studies based on density, accessibility, and operating assortment.

Spirituality and leadership, both have an intrinsic goal where they incorporate clarity of understanding, vision and collective action and both have the potential to empower an individual or a team, with commitment and productivity. It is one of the rapidly growing areas of leadership. It takes responsible policymakers and leaders to build a nation that benefits multiple stakeholders and all citizens. The aim of the chapter is to explore the concept of spirituality and show how applied spirituality can provide moral and practical guidance for leaders of public policy to take bold and enlightened steps towards achieving sustainable development (SD) goals. We define spirituality as a way of understanding, inner awareness, personal integration, and a source of values that give ultimate meaning or purpose beyond the egoic self. As such the chapter will go beyond existing discussions of ethical, moral, or values-based leadership and raise issues of how a deeper spiritual understanding of human nature can guide leaders. Some helpful practices like mindfulness are also covered in this chapter. There are various relevant leadership styles including transformational leadership, servant leadership, moral leadership and participatory leadership. Although each of these has some positive characteristics, this chapter with the help of those characteristics would try to get a deeper insight and understanding of how spirituality can stimulate and add more value, and bring integrity, motivation and strong leadership qualities. This chapter covers the existing gap in the literature on applied spirituality and leadership and concludes that leadership when incorporated with spirituality plays a vital role in honing the skills of the leaders and changing their perspective towards the team. The chapter will conclude with ideas for discussion among faculty and students and suggestions for further research into the use of applied spirituality for leadership in sustainable development policy.

One of the major challenges in the design of thermal equipment is to minimize the entropy production and enhance the thermal dissipation rate for improving energy efficiency of the devices. In several industrial applications, the structure of thermal device is cylindrical shape. In this regard, this paper aims to explore the impact of isothermal cylindrical solid block on nanofluid (Ag – H₂O) convective flow and entropy generation in a cylindrical annular chamber subjected to different thermal conditions. Furthermore, the present study also addresses the structural impact of cylindrical solid block placed at the center of annular domain.

The alternating direction implicit and successive over relaxation techniques are used in the current investigation to solve the coupled partial differential equations. Furthermore, estimation of average Nusselt number and total entropy generation involves integration and is achieved by Simpson and Trapezoidal’s rules, respectively. Mesh independence checks have been carried out to ensure the accuracy of numerical results.

Computations have been performed to analyze the simultaneous multiple influences, such as different thermal conditions, size and aspect ratio of the hot obstacle, Rayleigh number and nanoparticle shape on buoyancy-driven nanoliquid movement, heat dissipation, irreversibility distribution, cup-mixing temperature and performance evaluation criteria in an annular chamber. The computational results reveal that the nanoparticle shape and obstacle size produce conducive situation for increasing system’s thermal efficiency. Furthermore, utilization of nonspherical shaped nanoparticles enhances the heat transfer rate with minimum entropy generation in the enclosure. Also, greater performance evaluation criteria has been noticed for larger obstacle for both uniform and nonuniform heating.

The current numerical investigation can be extended to further explore the thermal performance with different positions of solid obstacle, inclination angles, by applying Lorentz force, internal heat generation and so on numerically or experimentally.

A pioneering numerical investigation on the structural influence of hot solid block on the convective nanofluid flow, energy transport and entropy production in an annular space has been analyzed. The results in the present study are novel, related to various modern industrial applications. These results could be used as a firsthand information for the design engineers to obtain highly efficient thermal systems.

Buongiorno’s type nanofluid mass and heat transport appearances inside a cavity filled with gyrotactic microorganisms by captivating thermal radiation is analyzed in the present work. Finite element investigation is instigated to examine the converted momentum, temperature, concentration of microorganisms and concentration of nanofluid equations numerically.

Finite element investigation is instigated to examine the converted momentum, temperature, concentration of microorganisms and concentration of nanofluid equations numerically.

The sway of these influenced parameters on standard rates of heat transport, nanoparticles Sherwood number and Sherwood number of microorganisms is also illustrated through graphs. It is perceived that the rates of heat transport remarkably intensifies inside the cavity region with amplifying thermophoresis number values.

The research work carried out in this paper is original and no part is copied from others’ work.

This paper aims to study the effect of concentric hot circular cylinder inside egg-cavity porous-copper nanofluid on natural convection phenomena.

The finite element method–based Galerkin approach is applied to solve numerically the set of governing equations with appropriate boundary conditions.

The effects of different range parameters, such as Darcy number (10–3 = Da = 10–1), Rayleigh number (103 = Ra = 106), nanoparticle volume fraction (0 = ϑ = 0.06) and eccentricity (−0.3 = e = 0.1) on the fluid flow represent by stream function and heat transfer represent by temperature distribution, local and average Nusselt numbers.

A comparison between oval shape and concentric circular concentric cylinder was investigated.

In the current numerical study, heat transfer by natural convection was identified inside the new design of egg-shaped cavity as a result of the presence of a circular inside it supported by a porous medium filled with a nanofluid. After reviewing previous studies and considering the importance of heat transfer by free convection inside tubes for many applications, to the best of the authors’ knowledge, the current work is the first study that deals with a study and comparison between the common shape (concentric circular tubes) and the new shape (egg-shaped cavity).