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Article
Publication date: 9 January 2024

Bhupendra Kumar Sharma, Umesh Khanduri, Rishu Gandhi and Taseer Muhammad

The purpose of this paper is to study haemodynamic flow characteristics and entropy analysis in a bifurcated artery system subjected to stenosis, magnetohydrodynamic (MHD) flow…

Abstract

Purpose

The purpose of this paper is to study haemodynamic flow characteristics and entropy analysis in a bifurcated artery system subjected to stenosis, magnetohydrodynamic (MHD) flow and aneurysm conditions. The findings of this study offer significant insights into the intricate interplay encompassing electro-osmosis, MHD flow, microorganisms, Joule heating and the ternary hybrid nanofluid.

Design/methodology/approach

The governing equations are first non-dimensionalised, and subsequently, a coordinate transformation is used to regularise the irregular boundaries. The discretisation of the governing equations is accomplished by using the Crank–Nicolson scheme. Furthermore, the tri-diagonal matrix algorithm is applied to solve the resulting matrix arising from the discretisation.

Findings

The investigation reveals that the velocity profile experiences enhancement with an increase in the Debye–Hückel parameter, whereas the magnetic field parameter exhibits the opposite effect, reducing the velocity profile. A comparative study demonstrates the velocity distribution in Au-CuO hybrid nanofluid and Au-CuO-GO ternary hybrid nanofluid. The results indicate a notable enhancement in velocity for the ternary hybrid nanofluid compared to the hybrid nanofluids. Moreover, an increase in the Brinkmann number results in an augmentation in entropy generation.

Originality/value

This study investigates the flow characteristics and entropy analysis in a bifurcated artery system subjected to stenosis, MHD flow and aneurysm conditions. The governing equations are non-dimensionalised, and a coordinate transformation is applied to regularise the irregular boundaries. The Crank–Nicolson scheme is used to model blood flow in the presence of a ternary hybrid nanofluid (Au-CuO-GO/blood) within the arterial domain. The findings shed light on the complex interactions involving stenosis, MHD flow, aneurysms, Joule heating and the ternary hybrid nanofluid. The results indicate a decrease in the wall shear stress (WSS) profile with increasing stenosis size. The MHD effects are observed to influence the velocity distribution, as the velocity profile exhibits a declining nature with an increase in the Hartmann number. In addition, entropy generation increases with an enhancement in the Brinkmann number. This research contributes to understanding fluid dynamics and heat transfer mechanisms in bifurcated arteries, providing valuable insights for diagnosing and treating cardiovascular diseases.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Book part
Publication date: 17 January 2022

Chris Forlin and Joanne Deppeler

With the move toward a more inclusive educational system across most jurisdictions, the expectation is that students with the most complex needs who have previously attended…

Abstract

With the move toward a more inclusive educational system across most jurisdictions, the expectation is that students with the most complex needs who have previously attended special schools, will gradually transition into inclusive schools. This expectation raises issues regarding the practicality of this move and the capacity of inclusive schools in being able to provide appropriate support and curriculum for these learners. Examples of transition programs across different countries are discussed to establish the most effective processes, support structures, and initiatives that have been employed to facilitate this transfer. The role of collaboration between schools and a review of support models that are provided for learners with high support needs in inclusive settings are discussed. Compared to the expectations for this move, and to understand the reality of it, perceptions of teachers, parents, and students are considered.

Details

Transition Programs for Children and Youth with Diverse Needs
Type: Book
ISBN: 978-1-80117-102-1

Keywords

Book part
Publication date: 29 June 2023

Richard Rose, Jayanthi Narayan and Ratika Malkani

India is a diverse country in which the development of services for children with disabilities presents many challenges. There is evidence that progress towards the provision of…

Abstract

India is a diverse country in which the development of services for children with disabilities presents many challenges. There is evidence that progress towards the provision of educational and therapeutic services has been considerable in the metropolitan cities, with reports of many examples of good and innovative practice. Rural communities are often less well served, and families living in some areas continue to face challenges when attempting to gain support for their children with disabilities. This chapter interrogates the situation for families in districts in southern and central India. The authors draw upon recent research to consider how the challenges of providing a multi-disciplinary support mechanism can be delivered to those living in these areas. Issues related to co-ordination of services, recruitment and retention of professionals and allocation of resources are considered through an examination of the socio-economic conditions confronted by families and professionals. Case study evidence from projects aimed at providing effective services are presented and discussed.

Details

Interdisciplinary Perspectives on Special and Inclusive Education in a Volatile, Uncertain, Complex & Ambiguous (Vuca) World
Type: Book
ISBN: 978-1-80382-529-8

Keywords

Book part
Publication date: 13 August 2014

Elina Pernu, Tuija Mainela and Vesa Puhakka

The present study approaches multinational corporations as internal networks that are constantly newly organized on the basis of relationships, operations, activities, and tasks…

Abstract

The present study approaches multinational corporations as internal networks that are constantly newly organized on the basis of relationships, operations, activities, and tasks at hand. It combines MNCs-as-networks view with the research on supplier–customer relationship development to conceptualize the relational dynamics in the MNCs. The dynamics are seen created as the interplay of organizing within internal networks and managing of the global customer relationships. Through an empirical study on a project business MNC and analysis of the events in its global customer relationship the study defines strategies of political compromising in MNC internal networks.

Details

Orchestration of the Global Network Organization
Type: Book
ISBN: 978-1-78350-953-9

Keywords

Article
Publication date: 18 November 2014

A. Roy, U. Sharma and P. Bhargava

The purpose of this study was to investigate the effectiveness of different strengthening schemes in strengthening heat damaged reinforced concrete short columns. A series of 63…

Abstract

The purpose of this study was to investigate the effectiveness of different strengthening schemes in strengthening heat damaged reinforced concrete short columns. A series of 63 heat damaged specimens were tested under concentric compression after jacketing externally with High Strength Fiber Reinforced Concrete (HSFRC), Ferrocement (FC) and Glass Fiber Reinforced Polymer (GFRP) jackets. The specimens were subjected to various heating and cooling regimes. The overall response of strengthened specimens was investigated with reference to un-strengthened specimens in terms of axial compressive strength, ductility, lateral stress-strain, and axial stress-strain behaviour. It was observed that while the GFRP jacketing is quite effective in improving compressive strength and energy dissipation, it is not capable of improving stiffness. On the contrary FC and HSFRC jacketing were mainly effective in improving stiffness property. Overall GFRP jacketing was found to be the most effective method of strengthening fire or heat damaged concrete columns.

Details

Journal of Structural Fire Engineering, vol. 5 no. 4
Type: Research Article
ISSN: 2040-2317

Keywords

Article
Publication date: 29 November 2019

Bhavya Swathi I., Suvarna Raju L. and Perumalla Janaki Ramulu

Friction stir processing (FSP) is overviewed with the process variables, along with the thermal aspect of different metals.

Abstract

Purpose

Friction stir processing (FSP) is overviewed with the process variables, along with the thermal aspect of different metals.

Design/methodology/approach

With its inbuilt advantages, FSP is used to reduce the failure in the structural integrity of the body panels of automobiles, airplanes and lashing rails. FSP has excellent process ability and surface treatability with good corrosion resistance and high strength at elevated temperatures. Process parameters such as rotation speed of the tool, traverse speed, tool tilt angle, groove design, volume fraction and increase in number of tool passes should be considered for generating a processed and defect-free surface of the workpiece.

Findings

FSP process is used for modifying the surface by reinforcement of composites to improve the mechanical properties and results in the ultrafine grain refinement of microstructure. FSP uses the frictional heat and mechanical deformation for achieving the maximum performance using the low-cost tool; the production time is also very less.

Originality/value

100

Details

Journal of Engineering, Design and Technology , vol. 18 no. 3
Type: Research Article
ISSN: 1726-0531

Keywords

Book part
Publication date: 13 August 2014

Valentina De Marchi, Eleonora Di Maria and Stefano Ponte

This paper aims at enriching the literature on international business (IB) studies to include insights from Global Value Chain (GVC) analysis to better explain how MNCs can…

Abstract

This paper aims at enriching the literature on international business (IB) studies to include insights from Global Value Chain (GVC) analysis to better explain how MNCs can orchestrate a global network organization. A first important contribution of the GVC literature is that it shifts the focus from single firms to their value chains, providing instruments to study how activities are split and organized among different firms at the industry level, and how MNCs can implement different governing mechanisms within a network-based setting. The GVC literature also highlights that retailers (as global buyers) often act as ‘lead firms’ in shaping the trajectories of global industries, while IB studies have so far focused predominantly on manufacturing firms. A fine-grained analysis of alternative forms of governance characterizing value chains can offer additional elements in explaining how MNCs can manage their network relationships in a global scenario. Finally, through their focus on upgrading, GVC studies suggest that knowledge flows and innovation dynamics taking place within value chains are as important as those taking place within the MNC’s organizational border. We conclude by arguing that these insights can help the IB literature to examine the challenges and opportunities MNCs face in engaging with suppliers and to explain the dynamic evolution of orchestrating global activities at the global level.

Details

Orchestration of the Global Network Organization
Type: Book
ISBN: 978-1-78350-953-9

Keywords

Article
Publication date: 1 August 2005

Shalini Hooda and Sudesh Jood

Wheat is considered nutritionally poor, due to deficiency of essential amino acids such as lysine and threonine, whereas fenugreek (Trigonella faenum graecum L.) flour has a high…

1153

Abstract

Purpose

Wheat is considered nutritionally poor, due to deficiency of essential amino acids such as lysine and threonine, whereas fenugreek (Trigonella faenum graecum L.) flour has a high protein content (25 per cent), lysins (5.7g/16gN), soluble (20 per cent) and insoluble (28 per cent) dietary fibre besides being rich in calcium, iron and beta‐carotene. Fenugreek seeds contain 20 per cent soluble fibre (gum), which can act as functional agent in wheat dough. The presence of bitter saponins in fenugreek seeds limits their acceptability in foods. However, it has been possible to debitter fenugreek seeds by using various domestic processing methods. Therefore, their use can be exploited as functional and nutritional food as well as therapeutic agents. Hence, in the present study efforts have been made to develop wheat‐fenugreek‐based health bread.

Design/methodology/approach

In commonly grown varieties of wheat, namely WH‐423, and fenugreek namely Pusa, early bunching was obtained. Fenugreek seeds were divided into three portions. One portion was left unprocessed (raw), while the other two portions were soaked (12hr at 37C) and germinated (48hr at 37C) separately. Soaked and germinated samples were dried at 55‐60C. Dried samples of raw, soaked and germinated seeds were ground to fine powder. Fenugreek seed powder (raw, soaked and germinated) was blended separately with wheat flour at different levels, namely 5, 10, 15 and 20 per cent. Breads from control and supplemented flours were baked in replicates. Baking, organoleptic and nutritional characteristics were analysed in the control and supplemented breads. The data were statistically analyzed in complete randomized design for analysis of variance according to the standard method.

Findings

Supplementation of wheat flour with fenugreek flour from 5 to 20 per cent levels increased the protein, lysine, minerals and fibre contents of bread. Additions of fenugreek (raw, soaked and germinated) up to the level of 15 per cent produced bread with a satisfactory loaf volume and other sensory quality attributes (crumb colour, crumb texture, taste etc.), whereas the 20 per cent level of supplementation caused a depression effect in loaf volume and the breads were found to be bitter in taste, However, among the various supplemented breads, germinated fenugreek flour‐supplemented bread at 15 per cent level showed satisfactory baking and organoleptic characteristics and contained an appreciable amount of protein (24 per cent), total lysine (3.02g/100g protein), dietary fibre (12.04 per cent) and minerals.

Practical implications

Fast food are becoming as popular, as in developing countries. Keeping this fact in view, in the present study, health breads were prepared. The developed product had good acceptability, was nutritionally rich and had therapeutic value. So, these can be considered for commercialization.

Originality/value

As fenugreek seeds contain 20 per cent soluble fibre (gum), and 5.7g/16gN lysine contents, the soluble fibre of fenugreek seeds has been reported to reduce blood sugar and cholesterol levels. Therefore, their use can be exploited in the development of health foods.

Details

Nutrition & Food Science, vol. 35 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Book part
Publication date: 26 January 2022

Karina R. Jensen

The rapidly evolving competitive global marketplace with its culturally diverse customers has increased demand for multinational corporations (MNCs) to accelerate global…

Abstract

The rapidly evolving competitive global marketplace with its culturally diverse customers has increased demand for multinational corporations (MNCs) to accelerate global innovation. Leaders increasingly face the challenge of facilitating global and local team knowledge in order to improve strategic planning and execution for new products and services worldwide. An unresolved question in this regard is how global leaders can facilitate multicultural team collaboration aimed at improving performance of global innovation initiatives? Addressing this research question, a qualitative study was conducted focusing on the role of global leadership in facilitating multicultural collaboration and global innovation performance. The study included interviews with 105 global project leaders at 36 MNCs with headquarters based in Europe, Asia, and North America. These exploratory findings demonstrate how global leadership behaviors can facilitate cross-cultural collaboration for international project performance.

Article
Publication date: 18 April 2017

Sangeeta Sharma, Ajay Pandit and Fauzia Tabassum

The purpose of this paper is to assess medicines information sources accessed by clinicians, if sources differed in theory and practice and to find out the barriers and…

Abstract

Purpose

The purpose of this paper is to assess medicines information sources accessed by clinicians, if sources differed in theory and practice and to find out the barriers and facilitators to effective guideline adoption.

Design/methodology/approach

In all, 183 doctors were surveyed. Barriers and facilitators were classified as: communication; potential adopters; innovation; organization characteristics and environmental/social/economic context.

Findings

Most of the clinicians accessed multiple information sources including standard treatment guidelines, but also consulted seniors/colleagues in practice. The top three factors influencing clinical practice guideline adoption were innovation characteristics, environmental context and individual characteristics. The respondents differed in the following areas: concerns about flexibility offered by the guideline; denying patients’ individuality; professional autonomy; insights into gaps in current practice and evidence-based practice; changing practices with little or no benefit. Barriers included negative staff attitudes/beliefs, guideline integration into organizational structures/processes, time/resource constraints. Fearing third parties (government and insurance companies) restricting medicines reimbursement and poor liability protection offered by the guidelines emerged as the barriers. Facilitators include aligning organizational structures/processes with the innovation; providing leadership support to guide diffusion; increasing awareness and enabling early innovation during pre/in-service training, with regular feedback on outcomes and use.

Practical implications

Guideline adoption in clinical practice is partly within doctors’ control. There are other key prevailing factors in the local context such as environmental, social context, professional and organizational culture affecting its adoption. Organizational policy and accreditation standards necessitating adherence can serve as a driver.

Originality/value

This survey among clinicians, despite limitations, gives helpful insights. While favourable attitudes may be helpful, clinical adoption could be improved more effectively by targeting barriers.

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