bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transient heat transfer and electro-osmotic flow of Carreau–Yasuda non-Newtonian fluid through a rectangular microchannel
Authors: Ghorbani Saeed , Emamian Amin , Amiri Delouei Amin , Ellahi R. , Sait Sadiq M. , Ben Hamida Mohamed Bechir 
Published: February 2023

PurposeThe purpose of this study is to investigate heat transfer and electrokinetic non-Newtonian flow in a rectangular microchannel in the developed and transient states.Design/methodology/approachThe Carreau–Yasuda model was considered to capture the non-Newtonian behavior of the fluid. The dimensionless forms of governing equations, including the continuity equation for the Carreau–Yasuda fluid, are numerically solved by considering the volumetric force term of electric current (DC).FindingsThe impact of pertinent parameters such as electrokinetic diameter (R), Brinkman number and Peclet number is examined graphically. It is observed that for increasingR, the bulk velocity decreases. The velocity of the bulk fluid reaches from the minimum to the maximum state across the microchannel over time. At the electrokinetic diameter of 400, the maximum velocity was obtained. Temperature graphs are plotted with changes in the various Brinkman number (0.1 <Br< 0.7) at different times, and local Nusselt are compared against changes in the Peclet number (0.1 < ℘e< 0.5). The results of this study show that by increasing the Brinkman number from 0.25 to 0.7, the temperature along the microchannel doubles. It was observed that increasing the Peclet number from 0.3 to 0.5 leads to 200% increment of the Nusselt number along the microchannel in some areas along the microchannel. The maximum temperature occurs at Brinkman number of 0.7 and the maximum value of the local Nusselt number is related to Peclet number 0.5. Over time in the transient mode, the Nusselt number also decreases along the microchannel. By the increasing of time, the temperature increases at given value of Brinkman, which is insignificant at Brinkman number of 0.1. The simulation results have been verified by Newtonian and non-Newtonian flows with adequate accuracy.Originality/valueThis study contributes to discovering the effects of transient flow of electroosmotic flow for non-Newtonian Carreau–Yasuda fluid and transient heat transfer through rectangular microchannel. To the authors’ knowledge, the said investigation is yet not available in existing literature.
Development of automatic 3D body scan measurement line generation method
Authors: Han Hyunsook 
Published: February 2023

PurposeThis research aimed to develop an automatic 3D body measurement line generation method that reduces errors induced by diverse body shapes and incomplete scan areas.Design/methodology/approachThree-dimensional body scan data from the 5th Size Korea database were used. Measurement extraction methods were developed for each measurement; chest girth, underbust girth, armscye girth and neck base girth.FindingsThe research showed that the method adopted in this study enhanced the accuracy of the scan measurements for various body shapes and incomplete scan data. The authors verified the accuracy of the developed methods for various body shapes by comparing the scan measurement against manual measurement.Originality/valueThe automatic 3D body measurement line generation algorithms developed for various human body shapes will improve the reliability and accuracy of 3D body scan measurement program. Also. it will be of practical use in human-size-related production processes.
Collaboration, eco-innovation and economic performance in the automotive industry
Authors: Maldonado Guzmám Gonzalo , Pinzón Castro Sandra Yesenia 
Published: February 2023

PurposeEco-innovation is emerging as one of the most important constructs that improve environmental sustainability of firms. However, it has been shown that companies alone cannot adequately develop eco-innovation activities, which is why they require the implementation of external collaboration activities with intermediaries, suppliers and stakeholders to achieve a higher level of eco-innovation activities and improve business performance of manufacturing firms. Therefore, this research fills this gap by exploring the importance of the relationship between collaboration and eco-innovation.Design/methodology/approachThe research is conducted through an extensive literature review with a research model consisting of 5 measurement scales, 24 items and 4 hypotheses. A self-administered questionnaire was distributed to a sample of 460 firms in Mexico, analyzing the data set through confirmatory factor analysis and structural equation models.FindingsThe results obtained from this study suggest that collaboration has significant positive effects both on the eco-innovation of products, processes and management, as well as on the business performance of companies in the automotive industry.Practical implicationsThe findings of this study have important implications both for the public administration (e.g. development of policies to support companies and financing programs) and for the managers of companies in the automotive industry (e.g. training program for employees and collaboration with other firms).Originality/valueThis paper fills a research gap by expanding the limited body of knowledge that relates collaboration eco-innovation and business performance, which is why this research aims to fill this existing gap in the literature and explore the relationship between collaboration, eco-innovation and business performance.
Dynamic causality between oil prices and stock market indexes in Russia and China: does US financial instability matter?
Authors: Ghedira Amal , Nakhli Mohamed Sahbi 
Published: February 2023

PurposeThis study aims to examine the dynamic bidirectional causality between oil price (OIL) and stock market indexes in net oil-exporting (Russia) and net oil-importing (China) countries.Design/methodology/approachThe authors use monthly data for the period starting from October 1995 to October 2021. In this study, the bootstrap rolling-window Granger causality approach introduced by Balcilar et al. (2010) and the probit regression model are performed in order to identify the bidirectional causality.FindingsThe results show that the causal periods mainly occur during economic, financial and health crises. For oil-exporting country, the results suggest that any increase (decrease) in the OIL leads to an appreciation (depreciation) in the stock market index. The effect of the stock market on OIL is more relevant for the oil-importing country than that for the oil-exporting one. The COVID-19 consequences are demonstrated in the impact of oil on the Russian stock market. The probit regression shows that the US financial instabilities increase the probability of causality between OIL and stock market indexes in Russia and China.Practical implicationsThe dynamic relationship between the variables must be taken into account in investment decisions. As financial instabilities in the USA drive the relationship between oil and stocks, investors should consider geopolitical, economic and financial elements when constructing their portfolios. Shareholders are required to include other assets in their portfolios since oil–stock relationship is highly risky.Originality/valueThis study provides further evidence of the bidirectional oil–stock causal link. Additionally, it examines the impact of financial instabilities on the probability that the OIL and the stock market index cause each other through the Granger effect.
Analyzing the barriers to sustainable procurement in an emerging economy: an interpretive structural modeling approach
Authors: Shaikh Abdul Rehman , Qazi Asad , Ali Imran , Appolloni Andrea 
Published: February 2023

PurposeThis paper aims to identify, using a literature review and expert panel input, what impedes organizations from implementing sustainable procurement, particularly in an emerging economy context.Design/methodology/approachThe extant literature review was carried out to explore and identify the barriers to sustainable procurement. Using interpretive structural modeling (ISM), the authors established a contextual relationship among the 22 identified barriers. These barriers are then classified into different categories, using the matrice d’impacts cross-multiplication appliqúe an classment (MICMAC) technique, based on their driving and dependence power.FindingsThe findings improve our understanding of the critical barriers and their direct and indirect effect on each other in obstructing sustainable procurement practices. The study is the first of its kind in identifying the barriers to sustainable procurement and developing a hierarchical relationship among barriers using an integrated ISM–MICMAC methodology based on data from an emerging economy (Pakistan). With a focus on sustainable practices, this study also responds to the United Nations Sustainable Development Goals.Practical implicationsThe results of the hierarchical model help understand which barriers are the most crucial to be fixed immediately (i.e. absence of environmental laws and lack of consumer pressure) and how different barriers could influence each other, specifically in emerging economies. The practitioners can use the findings to make more informed decisions to mitigate the crucial barriers that could impede their goals of sustainable procurement.Originality/valueThe study is the first of its kind to identify the barriers to sustainable procurement and develop a contextual relation and hierarchical framework in the Pakistani context.
Environmental behavior of university students
Authors: Torroba Diaz Macarena , Bajo-Sanjuan Anna , Callejón Gil Ángela María , Rosales-Pérez Ana , López Marfil Lidia 
Published: February 2023

Purpose
This study aims to build a model for the analysis of the environmental behavior of university students.

Design/methodology/approach
A partial least square method was adopted, and a questionnaire on intelligence, knowledge, attitude and environmental behavior was performed on 480 Spanish university students.

Findings
The results indicate that environmental intelligence positively affects university students’ environmental behavior through environmental knowledge and attitude.

Research limitations/implications
The conclusions of the present study are based on a sample drawn from Spanish university students. Therefore, new studies are needed to cover other educational institutions and cultural contexts.

Practical implications
Many university students’ environmental behavior depends on implementing educational actions that improve their environmental intelligence and knowledge.

Social implications
The study suggests that educational programs should implement strategies that maintain a sense of responsibility toward the sustainable development of university students, ensuring that future generations can live a quality life in a sustainable and safe environment.

Originality/value
The present study identifies the mechanism through which the environmental behavior of university students is formed.
Social media fashion influencer eWOM communications: understanding the trajectory of sustainable fashion conversations on YouTube fashion haul videos
Authors: Haines Shelley , Fares Omar H. , Mohan Myuri , Lee Seung Hwan (Mark) 
Published: February 2023

PurposeThis study aims to examine YouTube comments relevant to sustainable fashion posted on fashion haul videos over the past decade (2011–2021). It is guided by two research questions: (1) How have sustainable fashion-related comments posted on YouTube fashion haul videos changed over time? and (2) What themes are relevant to sustainable fashion in the comments posted on fashion haul videos?Design/methodology/approachA data set of comments from 110 fashion haul videos posted on YouTube was refined to only include comments with keywords related to sustainable fashion.Leximancer, a machine learning technique, was employed to identify concepts within the data and co-occurrences between concepts.Linguistic Inquiry and Word Countsoftware was employed to assess the prevalence of concepts and identify sentiment over time.FindingsOver the decade, the authors identified increased comments and conversations relevant to sustainable fashion. For instance, conversations surrounding sustainable fashion were linked to “waste” and “addicted” between 2011 and 2013, which evolved to include “environment” and “clothes” between 2014 and 2016, to “buy” and “workers” between 2017 and 2019 and “sustainable” between 2020 and 2021, demonstrating the changes in conversation topics over time.Practical implicationsWith increasing engagement from YouTube viewers on sustainable fashion, retail-affiliated content that promotes sustainable fashion is proposed as one approach to engage viewers and promote sustainable practices in the fashion industry, whereby content creators can partner with retailers to feature products and educate viewers on the benefits of sustainable fashion.Originality/valueThe findings suggest that consumers are becoming more aware of and responsive to sustainable fashion. The originality of this research stems from identifying the source of this interest.
Closing the gender gap in the business classroom: focus on finance
Authors: Ramirez Andres , Lofgren Joan 
Published: February 2023

Purpose
Finance is a male-dominated field of work. This study aims to understand if learning in finance follows the same pattern. Furthermore, the authors want to understand if foreign female students are subject to the same cultural norms and sorting mechanisms as their counterparts from the USA or Finland.

Design/methodology/approach
In the context of a capstone course, students of two well-known international business programs (one in the USA, the other in Finland) participate in a business simulation. The authors surveyed the students on their learning experience across different business functions. The authors collected 440 responses over five years.

Findings
A gender gap exists in learning finance. Females surveyed reported learning less (9%–15%) than males. However, foreign females reported learning more (11%–17%). Additionally, the authors find no gender gap in learning of other business functions (i.e. marketing and strategy). Foreign females seem to bypass traditional roles and sorting mechanisms.

Originality/value
To the best of the authors’ knowledge, this study is the first to document the moderating effect of foreignness on the gender gap in learning.
Vertical line extension: a systematic review of research on upward and downward line extension
Authors: Schmitz Anna-Karina , Brexendorf Tim Oliver , Fassnacht Martin 
Published: February 2023

Purpose
Vertical line extension is an attractive growth strategy that allows brands to address heterogeneous consumer needs and react to competitive pressure. The purpose of this paper is to systematically review and summarize vertical line extension research to derive general insights into vertical upward and downward line extension.

Design/methodology/approach
Drawing on a systematic review of 536 academic articles and predefined inclusion criteria, this research identifies and evaluates all articles that add knowledge to the topic of vertical line extension (n = 64).

Findings
This research derives general insights in several vertical line extension-specific issues. Different forms of vertical line extension, conceptual differences between upward and downward extensions, as well as the role of perceived fit, extension degree and the parent brand are crucial for the study and evaluation of extension and parent brand feedback effects. Those effects are complex and often work in opposing directions not only for the parent brand but also for the extension. Future research needs to face that complexity as well as methodological issues and different research contexts to further advance the literature stream.

Originality/value
This paper provides a comprehensive, state-of-the-art review of vertical line extension research characteristics and results. It provides new insights on the characteristics and effects of vertical line extensions and guides future research on the topic.
Fracture mechanism and failure criterion of S-07 steel for liquid rocket engine
Authors: Gao Yushan , Jiang Wei , Huo Shihui 
Published: February 2023

PurposeThe fracture mechanism of S-07 steel was investigated by observing the fracture surface of the specimens with scanning electron microscope (SEM). Furthermore, the overall elastic–plastic behaviors and the stress state evolution during the loading procedure of all specimens were simulated by FE analysis to obtain the local strain at crack nucleated location and the average triaxiality of each type of specimen.Design/methodology/approachThree types of tests under various stress states were performed to study the ductile fracture characteristics of S-07 high strength steel in quasi-static condition.FindingsUnder tensile and torsion loading conditions, S-07 steel exhibits two distinctive rupture mechanisms: the growth and internal necking of voids governs the rupture mechanism in tension dominated loading mode, while the change of void shape and internal shearing in the ligaments between voids dominants for shear conditions.Originality/valueThe failure criterion for S-07 steel considering the influence of the triaxial stress state was established.
Family social capital and career advancement: the mediating role of family-to-work enrichment and the moderating role of perceived organizational politics
Authors: Su Chang , Zhou Mingjian , Yang Yixin 
Published: February 2023

PurposeDrawing on social capital theory, this study investigated the effects of structural, cognitive and relational family social capital on employees' career advancement through the mechanism of family-to-work enrichment (FWE), taking perceived organizational politics (POP) as a moderator.Design/methodology/approachSurvey data were collected from 252 full-time employees working in public institutions and government departments in China, a collectivist cultural context. Hierarchical regression and path analysis were conducted to test the hypotheses.FindingsFWE significantly mediated the positive relationships between the three subtypes of family social capital and career advancement. The effects of structural and cognitive family social capital, but not relational family social capital (RFSC), on FWE were stronger when POP was low (vs high).Research limitations/implicationsFWE is arguably a promising mechanism for explaining the links between family social capital and career outcomes. However, due to the cross-sectional nature of the data, conclusions regarding causality remain limited.Practical implicationsFamily social capital may enrich the careers of employees in collectivist cultures. Managers should mitigate their organization's political climate to promote employees' career advancement.Originality/valueThis study contributes to career research by linking family social capital to career outcomes through the lens of FWE for the first time and by identifying organizational politics as an important moderator that can influence the dynamics of resource enrichment in a collectivist culture.
A comprehensive review on surface quality improvement methods for additively manufactured parts
Authors: Hashmi Abdul Wahab , Mali Harlal Singh , Meena Anoj 
Published: February 2023

PurposeThe purpose of this paper is to study the functionality of additively manufactured (AM) parts, mainly depending on their dimensional accuracy and surface finish. However, the products manufactured using AM usually suffer from defects like roughness or uneven surfaces. This paper discusses the various surface quality improvement techniques, including how to reduce surface defects, surface roughness and dimensional accuracy of AM parts.Design/methodology/approachThere are many different types of popular AM methods. Unfortunately, these AM methods are susceptible to different kinds of surface defects in the product. As a result, pre- and postprocessing efforts and control of various AM process parameters are needed to improve the surface quality and reduce surface roughness.FindingsIn this paper, the various surface quality improvement methods are categorized based on the type of materials, working principles of AM and types of finishing processes. They have been divided into chemical, thermal, mechanical and hybrid-based categories.Research limitations/implicationsThe review has evaluated the possibility of various surface finishing methods for enhancing the surface quality of AM parts. It has also discussed the research perspective of these methods for surface finishing of AM parts at micro- to nanolevel surface roughness and better dimensional accuracy.Originality/valueThis paper represents a comprehensive review of surface quality improvement methods for both metals and polymer-based AM parts.Graphical abstract of surface quality improvement methods
Women and partners’ experience of major postpartum haemorrhage: a qualitative study
Authors: Rosvig Lena , Steffensen Ellen , Brogaard Lise , Hvidman Lone , Kierkegaard Ole , Kjeldsen Anne Cathrine , Taastrøm Katja , Uldbjerg Niels , Lou Stina 
Published: February 2023

AbstractObjectiveTo examine women and their partners’ experience of major postpartum haemorrhage (PPH).DesignA qualitative interview study.SettingTwo Labour and Delivery Units in Denmark.PopulationWomen who experienced major PPH (≥1 litre within 2 hours after vaginal birth).MethodsSemi‐structured interviews were conducted with 15 women and nine partners (nine joint interviews, six individual interviews). Interviews were analysed using thematic analysis.Main outcome measuresA qualitative description of women and their partners’ experiences.ResultsThree major themes were identified. (1) ‘From birth to emergency’ included factors that increased concern in women and their partners, such as ‘incomprehensible’ medical terminology, a tense atmosphere, and alarm call. Transfer to the operating theatre was experienced as the most devastating part of major PPH. (2) ‘Feeling safe during an emergency’ described factors that supported the women and their partners’ management of the situation such as brief explanations from a few healthcare professionals and reassurance that the healthcare professionals were in control of the situation. The pain was experienced as severe, but acceptable. (3) ‘Family unity challenged’ described how family bonding was supported by positioning the partner at the head of the bed and by keeping the baby on the woman's chest.ConclusionsSeveral factors such as small gestures from healthcare professionals and appropriate organisation of the PPH can make a difference to the woman and her partner's experience of major PPH. Particularly, efforts that support family bonding are greatly valued by women and their partners.