bluuebunny/crossref_metadata_2025_split huggingface dataset:
Novel symmetrical step-down topologies of zigzag autotransformer
Authors: Wang JiaRong , Chen XiaoQiang 
Published: September 2019

Purpose
This paper aims to obtain a symmetrical step-down topology with lower equivalent capacity and wider step-down range under the condition of the same output. Three new symmetrical step-down topologies of zigzag autotransformer are proposed in this paper. Taking the equivalent capacity as the main parameter, the obtained topologies are modeled and analyzed in detail.

Design/methodology/approach
This paper adopts the research methods of design, modeling, analysis and simulation verification. First, the zigzag autotransformer is redesigned according to the design objective of symmetrical step-down topology. Second, the mathematical model of the designed topology is established, and the detailed theoretical analysis is carried out. Finally, the theoretical results are verified by simulation.

Findings
Three symmetrical zigzag autotransformer step-down topologies are designed, the winding configurations of the corresponding topology are presented, the step-down ranges of these three topologies are calculated and the influence of step-down ratio on equivalent capacity of autotransformer is analyzed. Through analysis, the target step-down topologies are obtained when the step-down ratio is [0.969, 1.414] and [1.414, 8].

Research limitations/implications
Because the selected research object is only zigzag autotransformer, the research results may lack generality. Therefore, researchers are encouraged to further study topologies of other autotransformers.

Practical implications
This paper includes the implications of step-down ratio on the equivalent capacity of autotransformer and the configuration of transformer windings.

Originality/value
The topologies designed in this paper enable zigzag autotransformer to be applied in step-down circumstances.
Risk management strategies of synthetic cannabis users
Authors: Campos Stephanie , Benoit Ellen , Dunlap Eloise 
Published: September 2019

Purpose
The purpose of this paper is to explore the various ways users of synthetic cannabinoids (SCs) managed the dangers associated with the consumption of this substance.

Design/methodology/approach
This paper is based on a parent study of the use and market of synthetic cathinones (also known as “bath salts”) in New York City, Houston, Galveston and New Orleans. Focus groups were conducted in all four cities with a total of 20 individuals who identified as users of SCs. Grounded theory was used to analyse focus group transcripts.

Findings
Participants were aware of drug-related risks and implemented strategies to reduce harm to health. Protective measures fell into two broad categories: marketing and consumption. They noted the instability of SC products and consumer manipulation through packaging. Harm reduction (HR) strategies included: carefully selecting SC sources; sticking to one brand; handling their own SC; managing amount of K2 consumed in one sitting; controlling the pace.

Originality/value
Given the small amount of data on user experience with SCs and its risk to health, it is important to learn from users themselves how they create methods to keep themselves safe. This is one of the first studies recording HR practices of SC users and can contribute to intervention programs and organisations serving substance users.
Dementia-friendly heritage settings: a research review
Authors: Sharma Monika , Lee Angela 
Published: September 2019

Purpose
Preserving our built heritage from the onslaught of weather, pollution, development and the effects of tourism is a complex endeavour. Appended to this is the need to ensure that heritage buildings are inclusive to all users. Thus, built heritage is plagued with contradictions and conflict between conservation goals and those to support inclusivity given the limited resources often available. Dementia has been purposely selected for this study as numbers of diagnosed sufferers are increasing at an alarming rate, and enagement with heritage has been proven to support well-being. The paper aims to discuss this issue.

Design/methodology/approach
This research review draws on systematic principles and presents an analysis of the available literature on well-being programmes designed for people living with dementia and their care supporters, with particular reference to programmes in heritage settings, and the resulting impact for users.

Findings
This review critically evaluates the available evidence from published literature on the role of the heritage setting, on how it impacts on the experience of dementia participants. In doing so, it draws on findings from the experiences and well-being of people living with dementia and their care supporters; assesses the current state of knowledge, identifies support implications and makes recommendations for future research. In doing so, it highlights a dearth in the literature on research related to the physical environment setting, particular addressing any cognitive impairments that may arise that can alter psychosocial processes, such as lighting, temperature, acoustics and materiality, so that they can be understood and suitably adapted to support the well-being of those living with dementia.

Originality/value
The scant lack of financial resources to support inclusivity in built heritage, and the argument that some heritage cannot be adapted, often leads to only limited opportune for people with dementia. Thus, there is an inherent need for an understanding of current research and well-being programmes so that it can be focalled in the future to support built heritage tourism in a way that it is inclusive to all.
Standing out from the crowd – an exploration of signal attributes of Airbnb listings
Authors: Yao Bin , Qiu Richard T.R. , Fan Daisy X.F. , Liu Anyu , Buhalis Dimitrios 
Published: September 2019

Purpose
Due to product diversity, traditional quality signals in the hotel industry such as star ratings and brand affiliation do not work well in the accommodation booking process on the sharing economy platform. From a suppliers’ perspective, this study aims to apply the signaling theory to the booking of Airbnb listings and explore the influence of quality signals on the odds of an Airbnb listing being booked.

Design/methodology/approach
A binomial logistic model is used to describe the influences of different attributes on the market demand. Because of the large sample size, sequential Bayesian updating method is utilized in hospitality and tourism field for the first attempt.

Findings
Results show that, in addition to host-specific information such as “Superhost” and identity verification, attributes including price, extra charges, region competitiveness and house rules are all effective signals in Airbnb. The signaling impact is more effective for the listings without any review comments.

Originality/value
This study contributes to the literature by incorporating the signaling theory in the analysis of booking probability of Airbnb accommodation. The research findings are valuable to hosts in improving their booking rates and revenue. In addition, government and industrial management organizations can have more efficient strategy and policy planning.
Convergence between performance and amateur management of a social organisation
Authors: Meyer Jr Victor , Mamédio Diórgenes Falcão , Oliveira Alechssandra Ressetti , Dib Natália Brasil 
Published: September 2019

PurposeUnderstanding social organisations requires considerable effort because of their complex reality. The purpose of this paper is to analyse the performance and amateur form of management of an organisation of scavengers, with significant results for society.Design/methodology/approachThis study is a qualitative in-depth case study. Data were collected through ethnographic interviews, non-participant observation and document analysis. The association of scavengers in question was identified as being strongly representative of the 23 similar associations in Curitiba. The city is the first Brazilian capital to create conditions for direct disposal of selective waste collected by waste pickers, as recommended by the National Solid Waste Policy.FindingsThree main aspects of evidence are highlighted in the proposed model: unique features, performance management and multiplicity of practices. The findings showed a strong presence of utilitarian behaviour due to the need of the members of the organisation to generate income for survival, forcing social and environmental concerns into the background. The combination of community values, informal practices, collective learning and amateur management has had a positive effect on the social organisation’s performance.Social implicationsThe outcomes were identified for individuals, the community and society by contributing to social inclusion, economic growth and environmental care.Originality/valueThe differentiated approach lies in the convergence between performance and amateur management in social organisations, with relevant environmental, economic and social results. A model is proposed to demonstrate the complex relationship between unique features, multiplicity of practices and performance with regard to the amateur management analysed in this study.
Linear and nonlinear buckling analysis for the material design optimization of wind turbine blades
Authors: Theotokoglou Efstathios E. , Balokas Georgios , Savvaki Evgenia K. 
Published: September 2019

Purpose
The purpose of this paper is to investigate the buckling behavior of the load-carrying support structure of a wind turbine blade.

Design/methodology/approach
Experimental experience has shown that local buckling is a major failure mode that dominantly influences the total collapse of the blade.

Findings
The results from parametric analyses offer a clear perspective about the buckling capacity but also about the post-buckling behavior and strength of the models.

Research limitations/implications
This makes possible to compare the response of the different fiber-reinforced polymers used in the computational model.

Originality/value
Furthermore, this investigation leads to useful conclusions for the material design optimization of the load-carrying box girder, as significant advantages derive not only from the combination of different fiber-reinforced polymers in hybrid material structures, but also from Kevlar-fiber blades.
Comparative study on seismic performance of specially shaped RC columns with that of rectangular columns in high-rise structures
Authors: Shetty Shanmukha , R.M. Subrahmanya , Bhandary Sushanth , Shetty Thushar 
Published: September 2019

Purpose
Columns are structural elements that are predominantly subjected to compressive forces and moments that are to be transferred from the super-structure to the sub-structure. The geometrical shape of a column is a significant factor to be considered. The paper aims to discuss this issue.

Design/methodology/approach
Pushover analysis is carried out, to study the behavior of RC frames with rectangular and specially shaped columns for the same building layout.

Findings
Reduction of 27.3 percent in base shear, 67.4 percent in spectral displacement, 66.5 percent reduction in storey displacement, 70.22 percent in storey drift and 0.315 percent reduction in storey shear is observed.

Practical implications
Special shaped RC columns can effectively enhance the structural behavior of high rise structures under seismic excitation in comparison to those with regular shaped RC columns.

Originality/value
Applications of special shaped columns in structures have showed a great deal of reduction in displacement and shear forces developed due to seismic activity, for the same area of concrete and steel as in rectangular columns.
Enhancement of mechanical integrity of advanced composites using PMAA-electropolymerised CF fabrics
Authors: Semitekolos Dionisis , Goulis Panagiotis , Batsouli Despoina , Koumoulos Elias P. , Zoumpoulakis Loukas , Charitidis Costas A. 
Published: September 2019

Purpose
The purpose of this paper is to develop modified composite materials that show improved mechanical and structural integrity.

Design/methodology/approach
To accomplish this goal, a novel functionalisation method of the carbon fibres (CFs) for the reinforcement of the composites surface was investigated. Through the electrografting of methacrylic acid (MAA) onto the surface of the CF, this treatment aims to selectively modify the surface of the carbon fabrics, in order to create active groups that can chemically react with the epoxy resin, under heat and pressure. By this way, better adhesion as mechanical interlocking between the resin and the reinforcement can be achieved.

Findings
The surface treatment was examined qualitatively by means of infrared spectroscopy, scanning electron microscopy and Raman spectroscopy. The CF reinforced polymers were manufactured via the hot-press technique and they were subsequently submitted to flexural, shear and nanoindentation test. Finally, the internal structural integrity was tested through micro-computing tomography.

Originality/value
Through this investigation, it will be determined if the electropolymerisation of MAA onto the CF surface enhances the mechanical and structural integrity of composite materials.
A varietal-specific approach to investigate wine risk perception in South Africa
Authors: Van der Colff Nadia , Pentz Chris , Nieuwoudt Helene 
Published: September 2019

Purpose
This study aims to describe South African consumers’ wine risk perception on varietal level with recommendations for Chenin blanc.

Design/methodology/approach
An exploratory mixed methods approach was followed where qualitative data were used to develop the questionnaire. Quantitative data were collected from 2,051 respondents using an online survey. ANOVA and Fischer least significance difference tests were used to indicate statistical significance.

Findings
Significant perceived risks (PRs) associated with Chenin blanc across age and ethnic groups were functional, time and financial risks. Risk-reducing strategies (RRS) in the white wine category were favourite brands and a trusted store, while Sauvignon blanc was also described as an RRS. Recommended Chenin blanc RRS include tastings and events with food.

Research limitations/implications
Measurement of PR remains challenging. This research approach can be reproduced and/or adapted to investigate other struggling varietals and/or regions-of-origin. The convenience sample limits generalisability.

Practical implications
Segments were identified to develop new markets for Chenin blanc. RRS emphasise the importance of real sensory experience rather than media exposure to build knowledge and familiarity.

Originality/value
This study is a pioneering endeavour in terms of using an exploratory mixed methods research approach to investigate and describe risk perception of a specific wine varietal. Recommendations, with implications for strategic marketing decisions, are made for South African Chenin blanc.
Conversion of XML schema design styles with StyleVolution
Authors: Brahmia Zouhaier , Grandi Fabio , Bouaziz Rafik 
Published: September 2019

PurposeAny XML schema definition can be organized according to one of the following design styles: “Russian Doll”, “Salami Slice”, “Venetian Blind” and “Garden of Eden” (with the additional “Bologna” style actually representing absence of style). Conversion from a design style to another can facilitate the reuse and exchange of schema specifications encoded using the XML schema language. Without any computer-aided engineering support, style conversions must be performed very carefully as they are difficult and error-prone operations. The purpose of this paper is to efficiently deal with such XML schema design style conversions.Design/methodology/approachA general approach, named StyleVolution, for automatic management of XML schema design style conversions, is proposed. StyleVolution is equipped with a suite of seven procedures: four for converting a valid XML schema from any other design style to the “Garden of Eden” style, which has been chosen as a normalized XML schema format, and three for converting from the “Garden of Eden” style to any of the other desired design styles.FindingsProcedures, algorithms and methods for XML schema design style conversions are presented. The feasibility of the approach has been shown through the encoding (using the XQuery language) and the testing (with the Altova XMLSpy 2019 tool) of a suite of seven ready-to-use procedures. Moreover, four test procedures are provided for checking the conformance of a given input XML schema to a schema design style.Originality/valueThe proposed approach implements a new technique for efficiently managing XML schema design style conversions, which can be used to make any given XML schema file to conform to a desired design style.
Influence of interface slip on the surface frictional force of texturing sliding bearing
Authors: Zhao Yuanfang , Jianxi Yang 
Published: September 2019

Purpose
The purpose of this paper is to explore the sensitive parameters affecting the friction resistance of sliding bearings under different interface slip conditions and the influence of the texture position of circular pits on the friction force of sliding bearings.

Design/methodology/approach
Based on the mechanical equilibrium equation and Newton's viscous fluid mechanics formula and wedge oil film model, the calculation model of sliding bearing friction resistance under interface slip state is established, and the influence of interface slip on friction resistance under different slip conditions is analyzed by means of ANSYS. Friction simulation model of circular pit textured journal bearing under different interface slip conditions.

Findings
The friction resistance of bearings is mainly determined by journal linear velocity, oil film slip ratio, pressure of inlet and outlet of bearings, oil film thickness and bearing capacity. When both the upper and lower surfaces of the oil film slip, the friction resistance decreases significantly, which is only 4-17 per cent of that without slip. And the friction force of the texture model of circular pit at the exit is better than that at the entrance and the middle of the pit.

Originality/value
Relevant research results will lay a new theoretical foundation for friction reduction and optimization design of sliding bearings.
Convolutional network-based method for wall-climbing robot direction angle measurement
Authors: Zhou Qiang , Li Xin 
Published: September 2019

Purpose
In the past several decades, considerable research has been dedicated to the development of mobile systems that can traverse vertical surfaces. For the control of the climbing robot, high-precision sensing of the climbing robot’s heading angle during movement is very important. This paper aims to propose a vision-based scheme for the 2D direction angle detection of wall-climbing robots.

Design/methodology/approach
First, the authors proposed a method based on image geometric transformation to transform a camera image into a front view image of the wall, as the position and direction angle of the robot can be detected from the transformed image to eliminate the need for calibration of the camera’s internal and external parameters. Second, the AngleNet model is proposed to detect the 2D direction angle of the wall-climbing robot. Third, a training sample expansion strategy is proposed, which greatly decreased the workload of annotating training samples for AngleNet.

Findings
The single image processing time of AngleNet on the GPU is only 1.7 ms, which satisfies the demands of real-time processing. The mean and maximum error of predicted direction angle on the 556 samples of the test set are 1.1° and 3.8°, respectively.

Originality/value
This research offers an effective method for measuring the climbing robot’s direction angle in a complex outdoor environment. Combined with position detection, it can provide high-precision position and direction angle measurement information for the motion control of the climbing robot.
Driving the internet and e-business technologies to generate a competitive advantage in emerging markets
Authors: Shehata Gamal Mohamed , Montash Mohammed A. 
Published: September 2019

PurposeThe purpose of this paper is to develop and empirically examine a comprehensive model that attempts to identify the factors that explain competitive advantage of implementing electronic business (e-business) in an emerging market. It seeks to fulfill an inevitable lack of conducting rigorous and intensive empirical studies on the Middle East and North Africa (MENA) region in which the internet use and e-business applications are on the rise.Design/methodology/approachThis research is descriptive in nature where a quantitative research methodology is deployed. Data are collected using both interviews and e-survey for a sample of 302 Egyptian companies serving in diverse industries. A multivariate partial least squares technique is employed to analyze the collected data.FindingsThis study explores various e-business modes and applications widely employed in the MENA region. It also addresses a set of e-business-driven competitive advantages that are mainly generated from supportive ICT environment, major market forces and strategic opportunities, and at last, from electronically driven customers’ relationship initiatives. A number of e-business barriers are claimed to moderate the relationship between those forces and the resulting competitive advantages.Research limitations/implicationsAlthough this research main framework incorporates important variables based on theoretical and empirical foundations, integrating other factors may extend understanding of how these factors, independently and/or interactively, explain the adoption of e-business and its merit to create distinctive competitive advantage.Practical implicationsThis work helps managers and e-business experts alike to comprehend the ways through which firms target the applications of e-business technologies to realize a competitive edge in MENA region. It also helps practitioners and professionals comprehend the interrelationship between the type of forces drive e-business based competitive position and key barriers that deteriorate such a connection in emerging markets.Originality/valueA model that enables scholars to better understanding the e-business phenomenon in MENA market is developed and validated. This model rests on e-business experts’ perspectives, reflections and it is evidently substantiated by past works in the areas.
Communicating the corporate strategy
Authors: Köhler Karolin , Zerfass Ansgar 
Published: September 2019

PurposeThe purpose of this paper is to address an important but seldom explored field of study: the communication of corporate strategies to external and internal stakeholders. The relevance of the topic can be tracked both in communication studies and in management research, but empirical insights are rare. The paper addresses this research gap by asking: How do listed companies in key industrial markets communicate publicly about their corporate strategy?Design/methodology/approachA comprehensive content analysis of corporate websites was conducted for a sample of the 20 largest listed companies in the UK, the USA and Germany (n=60). The subsequent benchmark analysis has identified best practices and highlighted them in detail.FindingsThe study revealed significant differences between companies and countries in the sample for most of the dimensions. Cross-country comparisons confirm these differences statistically: German companies score significantly higher in the benchmark than British or US companies.Practical implicationsThis paper outlines quality criteria for professional strategy communication, helping practitioners to improve their activities and contribute to organizational goals.Originality/valueThe study offers a holistic approach to strategy communication by providing an interdisciplinary theoretical foundation as well as insights into corporate practice, with the aim of laying the ground for further research and discussion in both academia and practice.