bluuebunny/crossref_metadata_2025_split huggingface dataset:
Applying of thin plate boundary condition in analysis of ship’s magnetic field
Authors: Jankowski Piotr , Woloszyn Miroslaw 
Published: August 2018

Purpose
The purpose of this paper is to present computer simulations of ship’s magnetic signatures using a new thin plate boundary condition implemented in the Opera 3D 18R2 programme. This paper aims to check the magnetic signatures’ numerical calculations precision of objects using the thin plate boundary conditions and analysis of the magnetic signature of ship with a degaussing system and with and without inner devices.

Design/methodology/approach
The ferromagnetic sphere and cube with and without the thin plate boundary condition were compared. The computer results of the magnetic field of a sphere were compared with an analytical solution. A superstructure, decks, hull and bulkheads of a corvette were modeled. An analysis of ship’s magnetic field with consideration of inner ferromagnetic devices and with degaussing system was carried out.

Findings
The results of the analytical and numerical comparative analysis of magnetic field of cube and sphere have shown that the thin plate boundary condition is a good method for analysis of magnetic signatures of thin-walled objects. The computer simulations of the corvette model have shown that for relative magnetic permeability of a few hundred range the influence of inner ferromagnetic devices on the ship’s magnetic signature is negligible. The thin plate boundary condition is also good method for calculation of the ship magnetic signature with degaussing system and for optimization currents of coils.

Originality/value
The calculation time of ship’s magnetic field with the thin plate boundary condition bears resemblance to the ship model with layers of steel.
Experiences of a prolonged coal-mine fire
Authors: Jones Rebecca , Lee Sarah , Maybery Darryl , McFarlane Alexander 
Published: August 2018

Purpose
The purpose of this paper is to examine the perspectives of local residents regarding the impact of the long-duration Hazelwood open cut coal mine fire in rural Australia.

Design/methodology/approach
A qualitative approach was undertaken involving 27 in-depth interviews with adults who lived in the town of Morwell, immediately adjacent to the coal mine fire.

Findings
Participant concerns focussed upon fear and confusion during the event, the perceived health effects of the smoke, anger towards authorities and loss of a sense of community and sense of security. One of the significant ways in which people managed these responses was to normalise the event. The long duration of the event created deep uncertainty which exaggerated the impact of the fire.

Research limitations/implications
Understanding the particular nature of the impact of this event may assist the authors to better understand the ongoing human impact of long-duration disasters in the future.

Practical implications
It is important to provide clear and understandable quality information to residents during and after such disasters.

Originality/value
While there is an extensive literature exploring the direct social and psychological impacts of acute natural disasters, less qualitative research has been conducted into the experiences of longer term critical events.
Quasilinearized Scale-3 Haar wavelets-based algorithm for numerical simulation of fractional dynamical systems
Authors: Mittal R.C. , Pandit Sapna 
Published: August 2018

Purpose
The main purpose of this work is to develop a novel algorithm based on Scale-3 Haar wavelets (S-3 HW) and quasilinearization for numerical simulation of dynamical system of ordinary differential equations.

Design/methodology/approach
The first step in the development of the algorithm is quasilinearization process to linearize the problem, and then Scale-3 Haar wavelets are used for space discretization. Finally, the obtained system is solved by Gauss elimination method.

Findings
Some numerical examples of fractional dynamical system are considered to check the accuracy of the algorithm. Numerical results show that quasilinearization with Scale-3 Haar wavelet converges fast even for small number of collocation points as compared of classical Scale-2 Haar wavelet (S-2 HW) method. The convergence analysis of the proposed algorithm has been shown that as we increase the resolution level of Scale-3 Haar wavelet error goes to zero rapidly.

Originality/value
To the best of authors’ knowledge, this is the first time that new Haar wavelets Scale-3 have been used in fractional system. A new scheme is developed for dynamical system based on new Scale-3 Haar wavelets. These wavelets take less time than Scale-2 Haar wavelets. This approach extends the idea of Jiwari (2015, 2012) via translation and dilation of Haar function at Scale-3.
Coupling simulation of the fast startup of a centrifugal pump with cavitation in a closed-loop pipeline system
Authors: Meng Long , Liu Meng , Zhou Lingjiu , Wang Wanpeng , Liao Cuilin , Zhao Lice , Li Tieyou 
Published: August 2018

Purpose
Cavitation inside pumps affects not only the steady state fluid flow, but also the unsteady or transient characteristic of the flow. However, cavitation inside pumps under transient processes is difficult to predict when the influence of the pipelines system is considered. In this paper we present a simulation method applied to a centrifugal pump and its related pipeline to analyze the induced unsteady cavitation phenomenon during the startup process.

Design/methodology/approach
In order to effectively predict transient processes of a pump and its pipeline system, the simulation method uses a coupled 1D and 3D scheme, which reduces the simulation cost. The simulation of the startup process of a centrifugal pump in a closed-loop pipeline system with and without cavitation has been performed to verify the proposed method.

Findings
The evolution of the pressure and flow rate obtained with the simulation method agrees well with the experimental results. It is found that the mass flow rate at the pump inlet and outlet is highly related to the cavitation vapor volume and that the pressure at the outlet of the impeller is greatly influenced by the discharge.

Originality/value
The 1D-3D coupling simulation method used in this paper is proven to be highly accurate, efficient and can be used to solve transient processes combined with cavitation or other complex phenomena.
A simulation-based framework for concurrent safety and productivity improvement in construction projects
Authors: Baniassadi Farshid , Alvanchi Amin , Mostafavi Ali 
Published: August 2018

PurposeSafety and productivity are key concerns in the construction projects. While safety looks to the construction workers need to work in a safe environment, productivity affects the project’s profitability and is of a paramount importance from the project owner’s view. The different perspective to the safety and productivity from these two major players in construction projects poses a potential for the conflict between the two. This problem can be fundamentally addressed by methods concurrently improving project safety and productivity. The paper aims to discuss this issue.Design/methodology/approachTo this aim, a discrete event simulation (DES) based framework applicable was proposed for complex and hazardous operations. The utility of the framework was tested using a case study of an eight-story residential building in the north-east part of Tehran, Iran. The excavation and stabilization operation was identified as the most hazardous and critical operation in this case. The framework could improve safety and productivity of this operation by 38 and 4 percent, respectively.FindingsThis framework is a complement to the conventional construction project safety and productivity planning methods. Its main application is in complex and hazardous construction operations.Originality/valueFor the first time, a comprehensive framework for concurrently improving safety and productivity of an entire project was proposed in this research. DES was used as the main modeling tool in the framework to provide anex-anteevaluation foundation applicable to a wide range of construction projects.
Stagnation-point flow of an aqueous titania-copper hybrid nanofluid toward a wavy cylinder
Authors: Yousefi Mohammad , Dinarvand Saeed , Eftekhari Yazdi Mohammad , Pop Ioan 
Published: August 2018

Purpose
The purpose of this paper is to investigate analytically the steady general three-dimensional stagnation-point flow of an aqueous titania-copper hybrid nanofluid past a circular cylinder that has a sinusoidal radius variation.

Design/methodology/approach
First, the analytic modeling of hybrid nanofluid is presented, and using appropriate similarity variables, the governing equations are transformed into nonlinear ordinary differential equations in the dimensionless stream function, which is solved by the well-known function bvp4c from MATLAB.

Findings
The current solution demonstrates good agreement with those of the previously published studies in the special cases of regular fluid and nanofluids. Graphical results are presented to investigate the influences of the titania and copper nanoparticle volume fractions and also the nodal/saddle indicative parameter on flow and heat transfer characteristics. Here, the thermal characteristics of hybrid nanofluid are found to be higher in comparison to the base fluid and fluid containing single nanoparticles. An important point to note is that the developed model can be used with great confidence to study the flow and heat transfer of hybrid nanofluids.

Originality/value
Analytic modeling of hybrid nanofluid is the important originality of present study. Hybrid nanofluids are potential fluids that offer better heat transfer performance and thermophysical properties than convectional heat transfer fluids (oil, water and ethylene glycol) and nanofluids with single nanoparticles. In this investigation, titania (TiO2, 50 nm), copper (Cu, 20 nm) and the hybrid of these two are separately dispersed into the water as the base fluid and analyzed.
The application of mixed-level model in convolutional neural networks for cashmere and wool identification
Authors: Wang Fei , Jin Xiangyu 
Published: August 2018

Purpose
The purpose of this paper is to use convolutional neural networks in order to solve the problem of the difficulty in the classification of cashmere and wool. To do the research, it proposes a low-dimensional strategy of using part-level features to enhance object-level features. The study aims to use computer version method to find out the most effective and robust method to manage the difficult task of cashmere and wool identification.

Design/methodology/approach
The authors try to get a coarse classification result and the initial weights of the model in the first step. The authors use the results of the first step and a Fast-RCNN method to extract part-level features in step 2. Finally, the authors mix the part-level features to enhance object-level features and classify the cashmere and wool images.

Findings
The paper finds that not only the texture is the key element of the cashmere and wool identification but also the image colors.

Originality/value
Most importantly, the paper finds that the part-level features can enhance object-level features in the fiber identification task. However, it does not work in contrast, and the strategy can be used in the similar fibers identifications.
African growth convergence: role of institutions and macroeconomic policies
Authors: Olarinde Muftau Olaiya , Yahaya Zakari Abdullahi 
Published: August 2018

Purpose
The purpose of this study is to examine the role of institutions and policies on growth convergence in Africa.

Design/methodology/approach
This study uses different methods of panel modelling on a panel of 50 African Countries covering a period of 1990-2014.

Findings
The results confirmed the presence of conditional convergence among countries in the region. On the average, technology accumulation and fiscal policies indicators are positive function of growth, while human resources, monetary policies indicators and ineffective institutions partly necessitated by poor level of development negatively impact growth. The study concludes, though traditional growth variables and policies are imperative in achieving growth in income, they remain insufficient in an environment characterize by extractive and absolutist institutions. Therefore, institution remains the link that bridges the gap in between proper mix of resources and policies.

Research limitations/implications
Based on the results, policy-makers in the region should allocate certain percentage of their resources (on a sustainable basis) towards building a qualitative institution. Also, future studies on Africa should be focused on the rate at which poor level of economic development determines the quality of institutions which in turn impacts the level of growth in income.

Originality/value
The study contributes to the existing literature on institutional convergence with particular focus on African countries using system GMM to capture the endogeneity among the series.
Investigating microblogging addiction tendency through the lens of uses and gratifications theory
Authors: Li Qian , Guo Xunhua , Bai Xue , Xu Wei 
Published: August 2018

Purpose
Considering the popularity and addictive attributes of microblogging, the purpose of this paper is to explore the key drivers of the microblogging addiction tendency, and to investigate the causal relationship between microblogging usage and addiction tendency through the lens of the uses and gratifications (U&G) theory.

Design/methodology/approach
By extending the U&G theory to accommodate the negative consequences of gratification, a research model that explains the relationships among microblogging use, gratification and addiction tendency was developed and empirically examined based on the data collected from 520 microblogging users in China.

Findings
The results showed that different types of microblogging use lead to different categories of gratification to different extents, while different categories of gratification play different roles in determining the level of addiction tendency. Specifically, the effect of content gratification on addiction is marginal, while social gratification has significant effects on all dimensions of addiction tendency.

Originality/value
The present study has both theoretical and practical implications. From a theoretical perspective, unlike many previous studies applied the U&G theory to explore the positive outcomes of media uses, this paper extends the U&G by including addiction tendency as a negative psychological outcome of U&G., resulting a research framework (use-gratification-addiction framework). Meanwhile, this paper contributes to the extending literature by examining the constructs of U&G at a granular level and investigated the causal relationship between “uses” and “gratifications.”
Online moral disengagement and hostile emotions in discussions on hosting immigrants
Authors: D’Errico Francesca , Paciello Marinella 
Published: August 2018

Purpose
The purpose of this paper is to explore the “dark nuances” of social media by identifying moral disengagement (MD) mechanisms and hostile emotions in people discussing the hosting of immigrants and examining the relationship between MD mechanisms and hostile emotions expressed online (annoyance, irritation and contempt).

Design/methodology/approach
The method was based on a psycho-lexicographical approach that analysed the in vivo real words, adopting a quanti-qualitative point of view. The investigation started from the case of a Facebook post in support of immigrants after a serious shipwreck causing the death of more than 700 would-be migrants. More than 10,000 comments were codified. For the comments against the hosting of such immigrants, the authors followed a codebook aimed at identifying MD mechanisms and hostile emotions.

Findings
The main findings show an interplay between different hostile negative emotions and online MD mechanisms. The greater the intensity of hostile emotions, the more the locus of disengagement moves from the unethical individual’s behaviour – for example, offering moral justifications – to the target recipient of such behaviour – for example, blaming or dehumanising.

Practical implications
The study could be applicable in designing and developing algorithms and technological tools aimed at preventive interventions to promote moral awareness and emotional regulation in online settings.

Social implications
The study may be a useful contribution to understanding unethical orientation by identifying areas where education can intervene in reducing harmful behavioural tendencies.

Originality/value
This study takes together expressed hostile emotions and MD mechanisms by means of the analysis of real words in vivo through social media discussions.
The influence of openness to experience and nostalgia proneness on brand loyalty
Authors: Özhan Seniz , Altug Nevin , Deniz Eylem 
Published: August 2018

Purpose
The purpose of this paper is to examine the joint effect of two composite characteristics –openness to experience (OE) and nostalgia proneness (NP) – on product involvement (PI) and whether brand loyalty (BL) is a result of this PI.

Design/methodology/approach
In accordance with this purpose, a model suggesting that OE dimension of the five-factor model and NP influences PI and PI influences BL was developed and tested. The data used in the study were obtained from 1,392 participants from the Thrace region of Turkey. The authors use a structural equation model to test and confirm hypothesis.

Findings
OE influences PI and hence BL. On the other hand, it has been concluded that NP has no significant influence on PI.

Research limitations/implications
This is the first study to examine the influence of OE, one of the personality traits, and NP on BL. In this study, only OE, which is one of the five-factor personality traits, has been examined. Studies in the future may research the relationship between other personality traits and NP, PI and BL.

Practical implications
This paper provides managerial insights into why consumers’ personality traits and NP need to be taken into consideration in creating BL.

Originality/value
To the best of authors’ knowledge, the influence of OE and NP on BL has not been addressed in the current literature. Personality traits and NP are closely related to individuals’ behaviors as a consumer. Understanding the factors that influence consumer purchase decision processes is of crucial importance to managers and researchers alike. The paper is of great value for firms that consider enhance BL.
Direct and indirect effects of ethical leadership on workplace deviance in public healthcare sector of Pakistan
Authors: Yasir Muhammad , Rasli Amran 
Published: August 2018

PurposeOver the years, increased level of deviant behavior among the employees of public sector organizations has been observed. The situation is worst in the public healthcare sector of Pakistan, where numerous incidents of employee deviant behavior have been reported recently. This scenario is compelling scholars and practitioners to find appropriate solutions to address this issue. As previous literature lacks empirical evidence regarding the role of ethical leadership in establishing an ethical climate in order to minimize workplace deviance in the public healthcare sector. Thus, to fill this gap, the purpose of this paper is to investigate the effect of organizational ethical climate as a mediator in the relationship between ethical leadership and workplace deviance in public healthcare sector of Pakistan.Design/methodology/approachThis study employed survey strategy, using quantitative method with a cross-sectional research design, and with multi-stage sampling technique. Two hundred and eighty nine usable questionnaires were collected from doctors and nurses. Further, Structural Equation Modeling was conducted in order to test the hypothesized model and determine the direct and indirect effects.FindingsResults of this study revealed that ethical leadership negatively influenced workplace deviance. Ethical leadership was further found to have a positive effect on ethical climate. Moreover, the ethical climate had a negative relationship with workplace deviance. Finally, ethical climate mediated the relationship between ethical leadership and workplace deviance.Originality/valueThis study identified the significance of ethical leadership behavior which assists in establishing an ethical organizational climate leading towards less likelihood of the emergence of workplace deviance.
Evolving segments of online clothing buyers: an emerging market study
Authors: Pandey Shweta , Chawla Deepak 
Published: August 2018

Purpose
While marketers want to drive higher repurchases for better business sustainability, repeat shopping experiences may change customer perceptions of the online channel, resulting in the emergence of new segment typologies. Therefore, the purpose of this paper is to explore the segmentation of online clothing shoppers using a repeat online clothing shopper base. Further, it analyses segment positions in a perceptual space to derive relevant positioning insights for the various segments.

Design/methodology/approach
Segmentation is done using dual bases of e-lifestyle and website quality factors for which the scales are derived from literature and then adapted and validated using a two-phase process across two samples of 271 and 644 experienced shoppers, respectively, in India. Positions of the segments are explored using the discriminant analysis-based perceptual mapping technique.

Findings
Three segments are found, namely disengaged averse online shoppers, interactive convenience seekers and adept online shopping optimists with the latter two having a higher propensity to purchase clothes online. Perceptual mapping of the segment positions reveals dimensions, which can be used for appropriate positioning.

Research limitations/implications
The research methodology may be replicated for other products and country contexts, and additional factors may be explored for further insights.

Practical implications
The study reveals insights on the evolving nature of segments as shoppers gain experience of online shopping for clothes and highlights the varied reasons for the growing acceptability of the online channel. The findings reveal key targeting and positioning strategies for e-marketers.

Originality/value
This is one of the first studies of its kind in India, which explores the segmentation of repeat online clothing shoppers in India using dual bases. Another distinctive feature of the study is its use of the perceptual mapping technique to draw inferences about factors that differentiate multi-segment buying behavior.