bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integrated Taguchi-GRA-PCA for optimising the heat transfer performance of nanofluid in an automotive cooling system
Authors: Seraj Mohd , Yahya Syed Mohd , Anas Mohd , Sutrisno Agung , Asjad Mohammad 
Published: July 2020

PurposeIn the present study, the thermal performance of engine radiator using conventional coolant and nanofluid is determined experimentally for the different flow rates. Further, the study implemented the Integrated Taguchi-GRA-PCA for optimising the heat transfer performance.Design/methodology/approachNanofluids were prepared by taking ethylene glycol and water (25:75 by volume) with volume fraction of 0.01, 0.03 and 0.05% of TiO2 nanopowder. Experimental Data were collected based on the design of experiments (DOE) L9 orthogonal array using Taguchi method. Statistical analysis via Grey relation analysis (GRA) and principal component analysis (PCA) were done to determine the role of experimental parameters on heat transfer coefficient and rate of heat transfer. Impact of three control factors, vol. % of TiO2 concentration (φ), flow rate (LPH), and sonication time (min) on the performance characteristics on heat transfer coefficient and ratio of heat transfer rate is analysed to get the best combination of the parameters involved.FindingsAnalysis revealed the importance of parameters on heat transfer coefficient and can be sorted in terms of contributions from higher to lower degree. Finally, ANOVA test has been conducted to validate the effect of process parameters. The major controllable parameter is φ (concentration), contributing about 32.74%, then flow rate contributing 32.5% and finally sonication time showing small contribution of 18.57%.Originality/valueA grey relational analysis integrated with principal component analyses (PCA) are implemented to get the optimum heat transfer coefficient and ratio of heat transfer rate. The novelty of the work is to adopt and implement the Integrated Taguchi-GRA-PCA first time for the purpose of thermal performance analysis of engine nano-coolant for radiator.
Casing-groove optimisation for stall margin in a transonic compressor rotor
Authors: Mustaffa Ahmad Fikri , Kanjirakkad Vasudevan 
Published: July 2020

Purpose
This paper aims to understand the aerodynamic blockage related to near casing flow in a transonic axial compressor using numerical simulations and to design an optimum casing groove for stall margin improvement using a surrogate optimisation technique.

Design/methodology/approach
A blockage parameter (Ψ) is introduced to quantify blockage across the blade domain. A surrogate optimisation technique is then used to find the optimum casing groove design that minimises blockage at an axial location where the blockage is maximum at near stall conditions.

Findings
An optimised casing groove that improves the stall margin by about 1% can be found through optimisation of the blockage parameter (Ψ).

Originality/value
Optimising for stall margin is rather lengthy and computationally expensive, as the stall margin of a compressor will only be known once a complete compressor map is constructed. This study shows that the cost of the optimisation can be reduced by using a suitably defined blockage parameter as the optimising parameter.
Demographic differences in the perceived news literacy skills and sharing behavior of information professionals
Authors: Ameen Kanwal , Naeem Salman Bin 
Published: July 2020

Purpose
This study aims to determine the differences in information professionals’ perceived news literacy skills and sharing behaviors with their demographics (gender, age, qualification, professional experience and working designation).

Design/methodology/approach
Using a quantitative research design, a cross-sectional survey was conducted to collect the data from information professionals working in university libraries.

Findings
Findings reveal that the use of social media channels for sharing news was significantly higher among the professionals in the age group <30 years as compared to the older age groups. Female professionals determine the authenticity of a news story more frequently than males. The study concludes that the factors such as age, education level and work experience significantly influence information professionals’ use of social media for sharing news and their news literacy skills.

Practical implications
The study holds some important practical implications in terms of identifying demographic factors in the perceived news literacy skills and sharing behaviors. Having information about the significant variations in demographics may help in adopting the targeted approaches for organizing news literacy sessions, as well as to develop a framework for news literacy instructions.

Originality/value
This study adopted the Framework for Information Literacy in Higher Education given by the Association for College and Research Libraries (ACRL) to develop the theoretical framework and questionnaire. The validated questionnaire on news literacy skills has been specifically constructed for the study in absence of finding any in the literature. Moreover, studies were hardly found assessing the difference of demographics with information professionals’ perceived news literacy skills and their news sharing behaviors.
Performance evaluation under human capital perspective: an empirical evidence
Authors: Dash Sujata Priyambada , Roy Supriyo 
Published: July 2020

PurposeThe study investigates the effect of human capital (HC) on organizational performance (OP) of potential employees. Further, an attempt has been made to develop the fundamental psychological mechanism of the aforementioned relationship by proposing retention (RE) as mediator.Design/methodology/approachFor this study, the required population on both private and public sector professionals of middle and senior-level management from service and manufacturing organizations functioning in various parts of India has been considered. For data collection, a complete set of questionnaires has been prepared and collected from 238 professionals. To study and test the hypotheses, structural equation modeling has also been used.Findingsa complete study on the data collected, it has been found that HC is significantly related with OP of the prospective professionals and RE has subsequently mediated the aforementioned linkage partially.Practical implicationsThe present study can suggest practically that the appropriate RE strategies retain HC with their respective organizations and provides in finding the evidence on the psychological processes during the employer procurement process.Originality/valuepaper bridges the disciplines of strategic human resource management and human capital management and brings in RE as an additional mediator into organizational performance.
The relevance of valuation models: insights from Palestine exchange
Authors: Harasheh Murad , Amaduzzi Andrea , Darwish Fairouz 
Published: July 2020

Purpose
This paper aims to investigate the relevance of two groups of valuations models as follows: the accounting models based on the residual income (RIM) and the standard market model, on equity price, return and volatility relevance.

Design/methodology/approach
The models are tested on companies traded on Palestine exchange from 2009 to 2018, using panel regression analysis. Two-price and two-return models derived from RIM to compare with the market model and four volatility models.

Findings
The standard RIM outperformed other models in equity price modeling. The dividend discount model (DDM) outperformed the rest of the models in terms of return estimation. However, the authors find that the market model can explain equity variance better than RIM and DDM models.

Practical implications
For investors, market beta does not necessarily capture all relevant factors of value and traditional financial statements are still important in providing relevant information and different models are used for different values perspectives (price, return and volatility).

Originality/value
Previous studies focus on comparing the price and return relevance of accounting-based models (RIM and cash flow models). Three aspects differentiate this paper and contribute to its originality, namely, the uniqueness of the context, incorporating the market model into the picture along with the accounting-based models and adding Volatility dimensions of relevance.
Data quality comparison between computers and smartphones in different web survey modes and question formats
Authors: Ha Louisa , Zhang Chenjie , Jiang Weiwei 
Published: July 2020

PurposeLow response rates in web surveys and the use of different devices in entering web survey responses are the two main challenges to response quality of web surveys. The purpose of this study is to compare the effects of using interviewers to recruit participants in computer-assisted self-administered interviews (CASI) vs computer-assisted personal interviews (CAPI) and smartphones vs computers on participation rate and web survey response quality.Design/methodology/approachTwo field experiments using two similar media use studies on US college students were conducted to compare response quality in different survey modes and response devices.FindingsResponse quality of computer entry was better than smartphone entry in both studies for open-ended and closed-ended question formats. Device effect was only significant on overall completion rate when interviewers were present.Practical implicationsSurvey researchers are given guidance how to conduct online surveys using different devices and choice of question format to maximize survey response quality. The benefits and limitations of using an interviewer to recruit participants and smartphones as web survey response devices are discussed.Social implicationsIt shows how computer-assisted self-interviews and smartphones can improve response quality and participation for underprivileged groups.Originality/valueThis is the first study to compare response quality in different question formats between CASI, e-mailed delivered online surveys and CAPI. It demonstrates the importance of human factor in creating sense of obligation to improve response quality.
Who are you talking about? Contrasting determinants of online disclosure about self or others
Authors: Thompson Nik , Brindley Jack 
Published: July 2020

PurposeThis paper contrasts the determinants of online disclosures about self and others in social media.Design/methodology/approachData from 216 respondents were collected through an online survey. The formal research model was tested with covariance based structural equation modeling.FindingsThe determinants of online disclosures vary whether the subject is self or others. Social networking site (SNS) users who self-disclose are also more likely to share information about others. Furthermore, there are significant gender effects in the influences of disclosure as revealed by multi-group SEM.Research limitations/implicationsFuture research models should incorporate the construct of disclosure about others and examine the intertwining of different types of disclosure on SNS. Future work should include behavioral measures, as this study relied on self-report measures.Practical implicationsThe current understanding of information sharing does not accommodate different forms of disclosure. Employers or systems administrators concerned about data sharing may need to tailor interventions to the subject of the disclosure. Furthermore, the significant gender differences in determinants of disclosure suggest that this should be considered in practical applications.Originality/valueDisclosure about others has not been examined in prior work. This study contributes by offering empirical data on the contrasting determinants of disclosure as well as gender differences. It improves the understanding of online information sharing, a topic of particular relevance in today's information oriented society.
Determinants of demand for credit by smallholder farmers': a farm level analysis based on survey in Sindh, Pakistan
Authors: Chandio Abbas Ali , Jiang Yuansheng , Rehman Abdul , Twumasi Martinson Ankrah , Pathan Amber Gul , Mohsin Muhammad 
Published: July 2020

PurposeIn the developing countries, formal credit has dominant role for the development of agriculture sector. It increases the farmer's purchasing power for better farm inputs and agricultural technology for high crop productivity. The main purpose of this study is to examine the influence of socioeconomic characteristics of smallholder farmers for credit demand in Sindh, Pakistan.Design/methodology/approachA cross-sectional data set randomly collected from 90 smallholder farmers in Thatta district, Sindh, Pakistan, is examined. Descriptive statistics, correlation and the OLS regression method were used to demonstrate the important factors affecting the demand for formal credit.FindingsThe results revealed that formal education, experience of farming, landholding size, road access and extension contacts positively and significantly influenced the demand for formal credit.Originality/valueThis study is the first, to the best of authors' knowledge, to demonstrate the influence of various socioeconomic characteristics of smallholder farmers on demand for formal credit in Sindh, Pakistan. It also illustrates the imperative contribution to the literature regarding credit access and demand to improve the agricultural productivity.
The impact of relative governance on B2B firms’ value appropriation from industrial buyer–seller relationships: empirical evidence from China
Authors: Zhang Jing , Zhang Ya , Du Mingfei 
Published: July 2020

Purpose
This paper aims to investigate how relative contractual and relational governances impact seller’s value appropriation via buyer’s trust, perceived justice and opportunism in the context of industrial buyer–seller relationships.

Design/methodology/approach
Survey data from 232 matched buyer-seller dyads of Chinese business-to-business (B2B) firms was used to test the conceptual model and research hypotheses. The confirmatory factor model and structural equation model were tested by using Lisrel 8.80.

Findings
The findings show that relative contractual governance and relative relational governance have opposite consequences on B2B relationship and value outcomes. Relative contractual governance generates higher level of buyer’s opportunist behavior because it reduces buyer’s trust and perceived justice, therefore harms seller’s value appropriation. By contrast, relative relational governance enhances buyer’s trust and perceived justice, therefore curbs buyer’s opportunism and improves seller’s value appropriation.

Originality/value
This study makes significant contributions to theory development of value appropriation and inter-firm governance mechanism by extending dyadic view to network view. It proposes the concept of relative governance and explores its role in shaping a business partner’s perception and behavior. It also provides insightful implications for B2B companies on capturing more benefits from the relationship with buyers by leveraging relative governance strategies.
A mixed data sampling approach to the asymmetric impacts of world oil price on macroeconomic variables in Vietnam
Authors: Pham Trinh Thi Tuyet , Le Nhan Phan Ai 
Published: July 2020

PurposeThis paper aims to analyse the asymmetric impacts of world oil price on macroeconomic variables in Vietnam, including domestic oil price, inflation and output growth.Design/methodology/approachThe mixed data sampling (MIDAS) approach is employed to examine the impact of world oil price changes on macroeconomic variables as the former is high-frequency data (daily), and the latter is low-frequency data, usually monthly or quarterly.FindingsChanges in world oil price cause asymmetric impacts on domestic oil price and inflation, but no significant effects on output growth. In terms of magnitude, a positive change in world oil price causes a stronger effect than a negative change in world oil price. In terms of timing, a positive change in world oil price causes a slow pass-through impact on domestic oil price and inflation. Meanwhile, domestic oil price and inflation decrease quickly following a negative change in world oil price.Originality/valueThis study investigates the asymmetric impact of oil price on the Vietnam economy in terms of both magnitude and timing, which is not explored by previous studies. In addition, it exploits daily information of oil price changes to analyse macroeconomic variables in lower frequency by employing MIDAS approach.
Exploring new Internet measurements on international trade and global human resources
Authors: Swan Tina T. , Swan Bruce Q. , Zhang Zuopeng (Justin) 
Published: July 2020

PurposeWe address the question of how the Internet promotes international trade volume, and especially, whether the global human resources affect the bilateral international trade during the technology development across countries.Design/methodology/approachA dynamic panel causality analysis is carried out to demonstrate empirically that the causality of the Internet diffusion on the international trade volumes. Evidence shows a significant positive effect of the Internet on international trade volume from time-series and cross-sectional regressions. Furthermore, the magnitude of elasticity is discussed.FindingsThere is strong evidence that the Internet stimulates international trade for all countries. Growth of trade volumes changes over time with heteroscedastic responses. The positive impacts of the growth of GDP are diluted by the growth of global human resources.Originality/valueThe data on the number of web hosts is not necessarily correlated to where the site is actually located. We contribute to the new Internet measurement which helps to explain the information transferring that stimulates the international trade and examine the global human resources.
Web-based home-hazard modification app for falls prevention: the views of those at risk of falling and their carers
Authors: Holliday Nikki , Ward Gillian , Walker-Clarke Aimee , Molitor Rachael 
Published: July 2020

Purpose
The purpose of the study is to assess the usability and acceptability of FallCheck, a Web app that allows users to complete home-hazard assessments within their own home, with a group of people at risk of falling and their carers.

Design/methodology/approach
This mixed method study used an online survey followed by semi-structured telephone interviews to collect both qualitative and quantitative data. A Think-Aloud study was used to test usability of the Web app through structured tasks.

Findings
Findings showed that FallCheck was easy to use with few usability issues. The Web app was deemed appropriate to use by people at risk of falling (young or old) or by carers if appropriate. The depth of knowledge provision and breadth of content was acceptable, and many participants reported subsequently making changes to their home environment to reduce their risk of falling. Overall, the majority of participants reported feelings of improved confidence and safety with an increased awareness of fall risks and a reduction in fear of falling at home.

Practical implications
FallCheck has good acceptability and usability with people at risk of falling and their carers and has the potential to improve access to home-hazard assessment and affect behavioural change regarding fall risk hazards and behaviour.

Originality/value
This study describes successful use of an app that may be helpful in identifying home-hazards and making changes to reduce risk of falls, particularly in the absence of occupational therapy intervention and has the potential for integration into falls care pathways.
Bribery, extortion and “morally ambiguous” leadership in organizations
Authors: Dion Michel 
Published: July 2020

PurposeThe purpose of this paper is to examine how four styles of “morally ambiguous” leadership could have a philosophical basis, while relatively contributing to efficiently prevent bribery and extortion in the organizational life.Design/methodology/approachThe paper identifies four styles of morally ambiguous leadership in taking philosophically based representations of “sociopolitical saviors” into account: “occasionally cruel saviors” (Niccolò Machiavelli); “occasionally compassionate saviors” (Adam Smith),; “socially conformist and compassionate” saviors (David Hume); and “revolutionary and implicitly compassionate” saviors (Hannah Arendt). Morally ambiguous leaders choose paradoxical ways to assume their moral responsibility. They use paradoxical strategies to prevent bribery and extortion in the organizational life.FindingsThe philosophical basis of those styles of morally ambiguous leadership unveils two basic antagonisms: the antagonism between cruelty and compassion; and the antagonism between social conformism and revolutionary spirit. The axis of power (Machiavelli) does not allow any connection between both antagonisms. The axis of self-interest (Smith) shows an intermediary positioning in both antagonisms (relatively compassionate, implicitly revolutionary). The axis of social conformism/compassion (Hume) and the axis of revolutionary spirit/compassion (Arendt) make leaders deepen their paradoxical positionings about moral issues.Research limitations/implicationsThe four styles of morally ambiguous leadership have not been empirically assessed. Moreover, the analysis of Eastern and Western philosophies could allow decision-makers to identity other philosophically based and morally ambiguous positionings about moral issues. Other philosophies could also unveil further kinds of antagonisms that could be applied to prevention strategies against bribery and extortion schemes.Originality/valueThe paper presents a philosophically based analysis of morally ambiguous leadership and its potential impact on prevention strategies against bribery and extortion schemes.
Millennials’ purchasing behavior toward fashion clothing brands: influence of brand awareness and brand schematicity
Authors: Rahman Muhammad Sabbir , Hossain Md Afnan , Hoque Mohammad Tayeenul , Rushan Md Rifayat Islam , Rahman Mohammad Iftekhar 
Published: July 2020

PurposeThe purpose of this research is to investigate the millennial consumers’ purchasing behavior of fashion clothing brands in the spectrum of brand awareness, brand schematicity with brand consciousness and brand nationality. This study mainly considered the millennial consumers as they are the most dynamic and discerning segment when choosing a distinct fashion brand.Design/methodology/approachThe study uses a well-structured questionnaire developed and distributed to 266 millennial respondents using shoping malls and university campus intercept methods. Data were analyzed by applying the structural equation modeling.FindingsThe results show that brand awareness has a mediating effect on the millennials’ purchasing behavior toward fashion clothing brands. The study also confirms the active moderation role of brand schematicity on the purchasing behavior toward fashion clothing brands.Practical implicationsBased on these findings, the fashion clothing retailers should aim to maximize their sales from the millennial segments by enhancing brand awareness. The schematic consumers are more engaged in the numbers of quality hints to make their choice on the fashion clothing brands. Therefore, the practitioners must consider such information, and that should be available in the fashion clothing retail outlets.Originality/valueThe study contributes to the existing literature of the millennials’ purchasing behavior toward the fashion clothing brands. Moreover, research on this segment related to brand awareness and brand schematicity is insufficient, and the current study may add significant value.