bluuebunny/crossref_metadata_2025_split huggingface dataset:
A new approach for numerical-diffusion control of flux-vector-splitting schemes for viscous-compressible flows
Authors: Kalita Paragmoni , Dass Anoop K. , Hazarika Jongki 
Published: June 2020

Purpose
The flux vector splitting (FVS) schemes are known for their higher resistance to shock instabilities and carbuncle phenomena in high-speed flow computations, which are generally accompanied by relatively large numerical diffusion. However, it is desirable to control the numerical diffusion of FVS schemes inside the boundary layer for improved accuracy in viscous flow computations. This study aims to develop a new methodology for controlling the numerical diffusion of FVS schemes for viscous flow computations with the help of a recently developed boundary layer sensor.

Design/methodology/approach
The governing equations are solved using a cell-centered finite volume approach and Euler time integration. The gradients in the viscous fluxes are evaluated by applying the Green’s theorem. For the inviscid fluxes, a new approach is introduced, where the original upwind formulation of an FVS scheme is first cast into an equivalent central discretization along with a numerical diffusion term. Subsequently, the numerical diffusion is scaled down by using a novel scaling function that operates based on a boundary layer sensor. The effectiveness of the approach is demonstrated by applying the same on van Leer’s FVS and AUSM schemes. The resulting schemes are named as Diffusion-Regulated van Leer’s FVS-Viscous (DRvLFV) and Diffusion-Regulated AUSM-Viscous (DRAUSMV) schemes.

Findings
The numerical tests show that the DRvLFV scheme shows significant improvement over its parent scheme in resolving the skin friction and wall heat flux profiles. The DRAUSMV scheme is also found marginally more accurate than its parent scheme. However, stability requirements limit the scaling down of only the numerical diffusion term corresponding to the acoustic part of the AUSM scheme.

Originality/value
To the best of the authors’ knowledge, this is the first successful attempt to regulate the numerical diffusion of FVS schemes inside boundary layers by applying a novel scaling function to their artificial viscosity forms. The new methodology can reduce the erroneous smearing of boundary layers by FVS schemes in high-speed flow applications.
Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine
Authors: Syawitri Taurista Perdana , Yao Yufeng , Yao Jun , Chandra Budi 
Published: June 2020

Purpose
The aim of this paper is to assess the ability of a stress-blended eddy simulation (SBES) turbulence model to predict the performance of a three-straight-bladed vertical axis wind turbine (VAWT). The grid sensitivity study is conducted to evaluate the simulation accuracy.

Design/methodology/approach
The unsteady Reynolds-averaged Navier–Stokes equations are solved using the computational fluid dynamics (CFD) technique. Two types of grid topology around the blades, namely, O-grid (OG) and C-grid (CG) types, are considered for grid sensitivity studies.

Findings
With regard to the power coefficient (Cp), simulation results have shown significant improvements of predictions using compared to other turbulence models such as the k-e model. The Cp distributions predicted by applying the CG mesh are in good agreement with the experimental data than that by the OG mesh.

Research limitations/implications
The current study provides some new insights of the use of SBES turbulence model in VAWT CFD simulations.

Practical implications
The SBES turbulence model can significantly improve the numerical accuracy on predicting the VAWT performance at a lower tip speed ratio (TSR), which other turbulence models cannot achieve. Furthermore, it has less computational demand for the finer grid resolution used in the RANS-Large Eddy Simulation (LES) “transition” zone compared to other hybrid RANS-LES models.

Originality/value
To authors’ knowledge, this is the first attempt to apply SBES turbulence model to predict VAWT performance resulting for accurate CFD results. The better prediction can increase the credibility of computational evaluation of a new or an improved configuration of VAWT.
Chinese and Indian investment in Ethiopia: infrastructure for ‘debt-trap diplomacy’ exchange and the land grabbing approach
Authors: Addis Amsalu K. , Asongu Simplice , Zuping Zhu , Addis Hailu Kendie , Shifaw Eshetu 
Published: June 2020

PurposeThe aim of this study is to examine the motive of China's and India's engagement in African countries particularly in Ethiopia and to address the land grabbing and debt-trap diplomacy between Ethiopia and the Asian drivers, which creates challenges across the diverse social, political, economic and ecological contexts.Design/methodology/approachThis study utilises both primary and secondary data. The available literature is also reviewed. The primary data were gathered through semi-structured interviews and discussions from (1) several authority offices in Ethiopia, sources close to authorities, information-rich informants, employees and (2) perspectives, perceptions and prospects from individual members of society.FindingsThe study unmasks the win-win cooperation strategy from the perspective of the members of society in Ethiopia, evaluates whether China and India have strings attached or land grabbing motives. The study also shows that whether China's and India's move was deliberate, the implications of debt-trap diplomacy and exploitation in Ethiopia are apparent. Additionally, this study investigated several considerable potential threats to Ethiopia that will persist unless significant measures are taken to control the relations with Asian drivers.Research limitations/implicationsSome of the limitations of this paper pertain to the primary data collection process from the Ethiopian Investment Commission (EIC) and other authorities, which was very challenging because people can be punished for talking to journalists or researchers. Furthermore, some investors were not willing to participate in discussions because they were engaged in areas that are not related to their licenses. Many interviewees were also not willing to disclose their names, and the data are not exhaustive in the number of investment projects covered.Originality/valueThis study provides new evidence on the influence of Chinese and Indian investment, aid and trade on Ethiopia's social, political and economic spheres. Additionally, this study contributes to the ongoing debate on land grabbing and debt-trap diplomacy in Ethiopia.
Improving supply chain collaboration through operational excellence approaches: an IoT perspective
Authors: Cui Li , Gao Meihua , Dai Jing , Mou Jian 
Published: June 2020

PurposeCollaboration is an important emerging dimension of sustainable supply chain management. How to improve supply chain collaboration (SCC) by means of operational excellence approaches has become an important research topic. The Internet of things (IoT), an important means of operational excellence, has also received increased attention. For better collaboration by the IoT, this study proposes a novel methodology to evaluate the measures of IoT adoption in SCC.Design/methodology/approachBased on the six-domain model and the common classification of collaboration, the measures of the IoT and the criteria of SCC are developed, respectively. A hybrid multi-step methodology that combines neutrosophic set theory, analytic hierarchy process (AHP) and technology for order preference by similarity to an ideal solution (TOPSIS) is proposed to complete the evaluation.FindingsThe results show that improving information transparency, strengthening the integration of management information systems and improving large data processing abilities are the most important measures of the IoT in improving SCC. Measures such as introducing sensing technology and laser scanning technology rank at the bottom and are relatively unimportant.Practical implicationsThe research results provide insights and references for firms to improve SCC by adopting appropriate IoT measures.Originality/valueMost of existing studies indicate the significance of technology in SCC. But this study shows a different conclusion that technologies rank the bottom, while information transparency is more important. And a suitable explanation is given. It further enriches the theoretical studies in SCC field.
The influence of government transparency on governance efficiency in information age: the environmental governance behavior of Guangdong, China
Authors: Zhang Shujian , Wang Li 
Published: June 2020

PurposeWe are in an information age, and the relationship between government governance and market efficiency has become closer. When examining the behavior of governance, the study of government transparency is very important. This paper examines the environmental governance performance of Guangdong province, the most developed coastal region in China.Design/methodology/approachDEA method is adopted to calculate the environmental governance efficiency by considering the expected output and the nonexpected output. Then Tobit regression was used to analyze the relationship between fiscal transparency and environmental governance efficiency.FindingsThrough a quantitative study of empirical data of Guangdong province from 2001 to 2017, it is found that fiscal transparency does have a significant positive impact on the efficiency of local environmental governance. Therefore, it is suggested that all regions in Guangdong should be more transparent in administration, intensify industrial transformation and upgrading, and better govern the regional ecological environment.Originality/valueThis paper examines the environmental governance performance of Guangdong province, the most developed coastal region in China. Guangdong has developed economy and people’s living standards are high, so the market and residents are particularly concerned about the government performance in environmental governance. Therefore, it is an important issue to explore the relationship between environmental governance and government transparency in Guangdong.
The traces of ecotourism in a digital world: spatial and trend analysis of geotagged photographs on social media and Google search data for sustainable development
Authors: Go Hanyoung , Kang Myunghwa , Nam Yunwoo 
Published: June 2020

Purpose
This paper aims to track how ecotourism has been presented in a digital world over time using geotagged photographs and internet search data. Ecotourism photographs and Google Trends search data are used to evaluate tourist perceptions of ecotourism by developing a categorization of essential attributes, examining the relation of ecotourism and sustainable development, and measuring the popularity of the ecotourism sites.

Design/methodology/approach
The researchers collected geotagged photographs from Flickr.com and downloaded Google search data from Google Trends. An integrative approach of content, trend and spatial analysis was applied to develop ecotourism categories and investigate tourist perceptions of ecotourism. First, the authors investigate ecotourism geotagged photographs on a social media to comprehend tourist perceptions of ecotourism by developing a categorization of key ecotourism attributes and measuring the popularity of the ecotourism sites. Second, they examined how ecotourism has been related with sustainable development using internet search data and investigate the trends in search data. Third, spatial analysis using GIS maps was used to visualize the spatial-temporal changes of photographs and tourist views throughout the world.

Findings
This study identified three primary themes of ecotourism perceptions and 13 categories of ecotourism attributes. Interest over time about ecotourism was mostly presented as its definitions in Google Trends. The result indicates that tracked ecotourism locations and tourist footprints are not congruent with the popular regions of ecotourism Google search.

Originality/value
This research follows the changing trends in ecotourism over a decade using geotagged photographs and internet search data. The evaluation of the global ecotourism trend provides important insights for global sustainable tourism development and actual tourist perception. Analyzing the trend of ecotourism is a strategic approach to assess the achievement of UN sustainable development goals. Factual perspectives and insights into how tourists are likely to seek and perceive natural attractions are valuable for a range of audiences, such as tourism industries and governments.
Critical realism and constructivism: merging research paradigms for a deeper qualitative study
Authors: Bogna Frank , Raineri Aldo , Dell Geoff 
Published: June 2020

PurposeTraditional approaches in qualitative research have adopted one research paradigm linked to an established typology. This paper addresses the unconventional application of two research paradigms in one study. A critical realist approach was used to augment a constructivist analysis of data in a research project seeking to explore the meaning that managers in small to medium enterprises (SMEs) attach to hazard identification, the construction of a hazard profile reflective of the business and its use in assisting to manage hazards within the SME's safety management system framework. Critical realism offered a complementary but essential framework to explore causal mechanisms that led to a deeper understanding of the findings by searching for the processes and causality that lay beneath the social and organizational phenomena observed.Design/methodology/approachThis paper compares the two research paradigms in order to seek junctures and apply them to a research project. Analytical tools applied to each research paradigm within the project are presented, followed by a new multiparadigm conceptual model that integrates critical realism and constructivism, providing an original contribution of knowledge to this field of qualitative research.FindingsThe adoption of a multiparadigm model enabled not only the interpretation of social phenomena but also the determination of its causality, enabling a more insightful answering of the research question and leading to a deeper insight into the phenomenology that was studied. This research approach widens the boundaries of qualitative inquiry within organizational research by promoting strategies that challenge more traditionally anchored research typologies, and consequently contributes to better research outcomes.Research limitations/implicationsThis study was conducted across four organizations. Similar research is encouraged across a greater number of case studies to validate the process of using a constructivist and critical realist paradigm to gain a more insightful understanding of events and their causality.Practical implicationsThe comparison of two research paradigms and consequent provision of a conceptual model (Figure 3) provides potential for the development of further multiparadigm models for research projects within the field of organizational management.Social implicationsThis paper has the potential to promote engagement and collaboration between research scholars seeking to explore the use of multiple research paradigms.Originality/valueSuch an approach has not previously been widely discussed or adopted to examine qualitative data, and advances theory in qualitative research. The application of two research paradigms using such an approach can be applied to businesses in a number of different contexts to gain a more insightful understanding of research participant perspectives, observable events arising from those perspectives and their associated causality.
Corporate social responsibility (CSR) in Canadian family firms
Authors: Zeng Tao 
Published: June 2020

PurposeThe purpose of this paper is to examine corporate social responsibility (CSR) activities in Canadian family firms.Design/methodology/approachThis paper is an empirical work using a sample of Canadian listed companies for eight years between 2010 and 2017.FindingsRelying on five measures for CSR, this paper finds that, compared with other listed firms, family listed firms have a higher level of CSR engagement. Further tests show that family-named family firms engage in more CSR activities; family firms with second largest shareholders engage in more CSR activities; and family firms affiliated with large business groups engage in more CSR activities. However, family firms whose family members are CEOs, presidents or board chairpersons engage in less CSR engagement.Originality/valueThis paper contributes to the current CSR literature by highlighting the importance of family firm heterogeneity in shaping a firm’s CSR practices. It focuses on four characteristics of Canadian family firms that are potentially connected to CSR, namely, family-named family firms; family firms with family members being CEOs, presidents or chairpersons; family firms with second largest shareholders and family firms affiliated with large business groups.
A metacommunity approach for detecting species influenced by mass effect
Authors: Leboucher Thibault , Tison‐Rosebery Juliette , Budnick William R. , Jamoneau Aurélien , Vyverman Wim , Soininen Janne , Boutry Sébastien , Passy Sophia I. 
Published: June 2020

Abstract

Mass effect, allowing species to persist in unfavourable habitats, and dispersal limitation, preventing species from reaching favourable habitats, are the two major dispersal processes. While dispersal limitation can be detected by experimental or modelling techniques, mass effect is more challenging to evaluate, which hampers our ability to disentangle the influence of the environment versus dispersal on species distribution. This is undesirable for biomonitoring programs built on known species–environment relationships.

We developed an approach for detection of species influenced by mass effect. We tested it on stream diatoms, a widely used taxonomic group for stream biomonitoring, from four French watersheds. This approach combined (a) an appropriate spatial framework, the asymmetric eigenvector map (AEM), used in species distribution modelling to measure the relative influence of dispersal versus niche processes, (b) an analysis of negative co‐occurrence patterns to separate mass effect from dispersal limitation and (c) a measurement of niche breadths to distinguish between non‐spatially structured generalists and species influenced by mass effect.

We propose that species characterized by low negative co‐occurrence values, a high correlation to spatial factors and average to low niche breadths are sensitive to mass effect.

Synthesis and applications. We suggest that the sensitivity of species towards mass effect should represent a new ecological trait to be considered for fundamental and applied issues concerning ecology and water quality assessment. Almost all of the species identified here as influenced by mass effect are contributing to the calculation of different diatom‐based indices (e.g. Biological Diatom Index or Specific Pollution‐sensitivity Index) and should be treated with caution when assigning ecological status classes to water bodies.
Time is Money or Money is Time? A Rapid Operational Sequence for Detecting Fingermarks on Polymer Banknotes
Authors: Bengiat Ravell , Liptz Yakir , Rajs Nora , Bentolila Alfonso , Levin‐Elad Michal 
Published: June 2020

AbstractBanknotes are often found in high‐profile crimes such as armed robberies, bribery, and terrorist activity. However, such exhibits present a challenge to forensic operatives regarding fingermarks development, due to their mass quantities, potential for fingermarks on both sides, and their unique complex background in terms of color, irregular patterns, and topography. Hence, the standard development protocols become inefficient, due to the difficulty in achieving high contrast images over the background. This study focused on finding an operational sequence that would minimize the time of work on polymer banknotes, in terms of both development and image processing. Thirty‐two fingermarks were developed by vacuum metal deposition (VMD), black magnetic powder, and cyanoacrylate fuming (CA) followed by visualization and imaging by reflected short‐wave UV (RUVIS) (96 in total), showing a distinct advantage to the CA and RUVIS imaging over the other two techniques with a 75% success rate in the dark and high background regions, due to its physical principle which neutralizes high background interference. The images were then scanned by the automatic fingerprint identification system (AFIS) to test its ability to correctly differentiate false background features from real ones, again, showing a superiority of the RUVIS with 63% of the total initial marked features, being real. Overall, the CA and RUVIS sequence was found to be an ultimate method for multiple, same‐type surfaces, with the RUVIS capable of visualization and capturing of the images simultaneously, significantly reducing the time of development and image processing.
The welfare and ethics of research involving wild animals: A primer
Authors: Soulsbury Carl D. , Gray Helen E. , Smith Lauren M. , Braithwaite Victoria , Cotter Sheena C. , Elwood Robert W. , Wilkinson Anna , Collins Lisa M. 
Published: June 2020

Abstract

Wild animals are used in scientific research in a wide variety of contexts both in situ and ex situ. Guidelines for best practice, where they exist, are not always clearly linked to animal welfare and may instead have their origins in practicality. This is complicated by a lack of clarity about indicators of welfare for wild animals, and to what extent a researcher should intervene in cases of compromised welfare.

This Primer highlights and discusses the broad topic of wild animal welfare and the ethics of using wild animals in scientific research, both in the wild and in controlled conditions. Throughout, we discuss issues associated with the capture, handling, housing and experimental approaches for species occupying varied habitats, in both vertebrates and invertebrates (principally insects, crustaceans and molluscs).

We highlight where data on the impacts of wild animal research are lacking and provide suggestive guidance to help direct, prepare and mitigate potential welfare issues, including the consideration of end‐points and the ethical framework around euthanasia.

We conclude with a series of recommendations for researchers to implement from the design stage of any study that uses animals, right through to publication, and discuss the role of journals in promoting better reporting of wild animal studies, ultimately to the benefit of wild animal welfare.