bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence mechanism of job satisfaction and positive affect on knowledge sharing among project members
Authors: Sang Linhua , Xia Dongchun , Ni Guodong , Cui Qingbin , Wang Jianping , Wang Wenshun 
Published: August 2019

PurposeThe purpose of this paper is to explore the influence mechanism of job satisfaction and positive affect on knowledge sharing among project members in Chinese construction industry, and test the moderating role of organizational commitment between them in order to find a new approach from the perspective of psychology to improve the knowledge sharing performance within project management organizations in China constantly.Design/methodology/approachAn empirical study was used based on confirmatory factor analysis and hierarchical regression analysis with a sample of 540 project members from 80 project management organizations in China.FindingsResearch results showed that job satisfaction and positive affect of project members both have a significant positive impact on knowledge sharing; organizational commitment could moderate the influence of job satisfaction and positive affect on knowledge sharing among project members partially within the Chinese context.Research limitations/implicationsA questionnaire study from China only represents the relationship and regular pattern within a shorter time interval in the Chinese context. It is necessary to continue to implement a longitudinal study in a relatively long period in future research.Practical implicationsKnowledge sharing among project members can be enhanced through improving job satisfaction and positive affect, and strengthening project members’ organizational commitment can amplify the influence effect of job satisfaction and positive affect on knowledge sharing.Originality/valueThis paper clarifies the direct influence mechanism of project members’ job satisfaction and positive affect on explicit knowledge sharing (EKS) and tacit knowledge sharing (TKS), and further tests the partial moderating effect of organizational commitment on the influence relationship of job satisfaction and positive affect on EKS and TKS.
Henry Caldwell Cook, creativity and democratic learning
Authors: Howlett John 
Published: August 2019

Purpose
The purpose of this paper is to re-examine the life and work of a forgotten progressive educator – (Henry) Caldwell Cook who was an English and drama teacher at the Perse School in Cambridge, UK. By looking at his key work The Play Way (1917) as well as the small number of his other writings it further seeks to explain the distinctiveness of his thinking in comparison to his contemporaries with a particular focus upon educational democracy.

Design/methodology/approach
The work was constructed primarily through a reading of Cook’s published output but also archival study, specifically by examining the archives held within the Perse School itself. These consisted of rare copies of Cook’s written works – unused by previous scholars – and materials relating to Cook’s work in the school such as his theatre designs and a full collection of contemporary newspaper reviews.

Findings
The paper contends that Cook’s understanding of democracy and democratic education was different to that of other early twentieth century progressives such as Edmond Holmes and Harriet Finlay-Johnson. By so doing it links him to the ideas of progressivism emergent in America from John Dewey et al. who were more concerned with democratic ways of thinking. It therefore not only serves to resurrect Cook as a figure of importance but also offers new insights into early twentieth century progressivism.

Originality/value
The value of the paper is that it expands what little previous writing there has been on Cook as well as using unused materials. It also seeks to use a biographical approach to start to better delineate progressive educators of the past thereby moving away from seeing them as a homogenous grouping.
Numerical simulation of the fluid flow and heat transfer characteristics of microchannel heat exchangers with different reentrant cavities
Authors: Pan Minqiang , Wang Hongqing , Zhong Yujian , Fang Tianyu , Zhong Xineng 
Published: August 2019

Purpose
With the increasing heat dissipation of electronic devices, the cooling demand of electronic products is increasing gradually. A water-cooled microchannel heat exchanger is an effective cooling technology for electronic equipment. The structure of a microchannel has great impact on the heat transfer performance of a microchannel heat exchanger. The purpose of this paper is to analyze and compare the fluid flow and heat transfer characteristic of a microchannel heat exchanger with different reentrant cavities.

Design/methodology/approach
The three-dimensional steady, laminar developing flow and conjugate heat transfer governing equations of a plate microchannel heat exchanger are solved using the finite volume method.

Findings
At the flow rate range studied in this paper, the microchannel heat exchangers with reentrant cavities present better heat transfer performance and smaller pressure drop. A microchannel heat exchanger with trapezoidal-shaped cavities has best heat transfer performance, and a microchannel heat exchanger with fan-shaped cavities has the smallest pressure drop.

Research limitations/implications
The fluid is incompressible and the inlet temperature is constant.

Practical implications
It is an effective way to enhance heat transfer and reduce pressure drop by adding cavities in microchannels and the data will be helpful as guidelines in the selection of reentrant cavities.

Originality/value
This paper provides the pressure drop and heat transfer performance analysis of microchannel heat exchangers with various reentrant cavities, which can provide reference for heat transfer augmentation of an existing microchannel heat exchanger in a thermal design.
Numerical investigation of natural convection in an inclined porous enclosure using non-Darcian flow model
Authors: Mohamed Ibrahim Atiya 
Published: August 2019

Purpose
A thoroughly literature review reveals that considerable attention have been given only to the two common cases, i.e. enclosure heated from below and heated from the side. For the inclined layer, on the other hand, the numbers of investigations are relatively small. Therefore, this paper aims to investigate the natural convective heat transfer in an inclined porous cavity using non-Darcian flow model, including the boundary surface and inertia effects.

Design/methodology/approach
The flow characteristics have been assumed to be two-dimensional, steady, incompressible flow, whereas the properties of porous media have been considered to be homogeneous and isotropic properties solid matrix. The non-Darcian flow model, including the boundary surface and inertia effects, has been numerically solved using finite difference method.

Findings
The initiation of multicellular flow and counter-rotating cell are strongly dependent on the aspect ratio A and the inclination angle θ. The orientation of the porous cavity, for a given Ra*, Fs/Pr* and A, has a significant effect on the heat transfer rate. The results also indicated that A has a dominant effect on the Nusselt number. The Nusselt number is strongly dependent on the Ra*, Fs/Pr*, A and θ. Therefore, operating conditions and geometry of the porous enclosure are required to be properly designed to achieve the desired objective.

Originality/value
The developed model can reveal the non-Darcian effects on the fluid flow and heat transfer in inclined porous media under natural convection case.
Interactions between adaptive time-integrators and adaptive meshing in a monolithic FEM solver
Authors: Muller Etienne , Pelletier Dominique , Garon André 
Published: August 2019

Purpose
This paper aims to focus on characterization of interactions between hp-adaptive time-integrators based on backward differentiation formulas (BDF) and adaptive meshing based on Zhu and Zienkiewicz error estimation approach. If mesh adaptation only occurs at user-supplied times and results in a completely new mesh, it is necessary to stop the time-integration at these same times. In these conditions, one challenge is to find an efficient and reliable way to restart the time-integration. The authors investigate what impact grid-to-grid interpolation errors have on the relaunch of the computation.

Design/methodology/approach
Two restart strategies of the time-integrator were used: one based on resetting the time-step size h and time-integrator order p to default values (used in the initial startup phase), and another designed to restart with the time-step size h and order p used by the solver prior to remeshing. The authors also investigate the benefits of quadratically interpolate the solution on the new mesh. Both restart strategies were used to solve laminar incompressible Navier–Stokes and the Unsteady Reynolds Averaged Naviers-Stokes (URANS) equations.

Findings
The adaptive features of our time-integrators are excellent tools to quantify errors arising from the data transfer between two grids. The second restart strategy proved to be advantageous only if a quadratic grid-to-grid interpolation is used. Results for turbulent flows also proved that some precautions must be taken to ensure grid convergence at any time of the simulation. Mesh adaptation, if poorly performed, can indeed lead to losing grid convergence in critical regions of the flow.

Originality/value
This study exhibits the benefits and difficulty of assessing both spatial error estimates and local error estimates to enhance the efficiency of unsteady computations.
Vector eigenfunction expansion in the integral transform solution of transient natural convection
Authors: Lisboa Kleber Marques , Su Jian , Cotta Renato M. 
Published: August 2019

Purpose The purpose of this work is to revisit the integral transform solution of transient natural convection in differentially heated cavities considering a novel vector eigenfunction expansion for handling the Navier-Stokes equations on the primitive variables formulation.

Design/methodology/approach The proposed expansion base automatically satisfies the continuity equation and, upon integral transformation, eliminates the pressure field and reduces the momentum conservation equations to a single set of ordinary differential equations for the transformed time-variable potentials. The resulting eigenvalue problem for the velocity field expansion is readily solved by the integral transform method itself, while a traditional Sturm–Liouville base is chosen for expanding the temperature field. The coupled transformed initial value problem is numerically solved with a well-established solver based on a backward differentiation scheme.

Findings A thorough convergence analysis is undertaken, in terms of truncation orders of the expansions for the vector eigenfunction and for the velocity and temperature fields. Finally, numerical results for selected quantities are critically compared to available benchmarks in both steady and transient states, and the overall physical behavior of the transient solution is examined for further verification.

Originality/value A novel vector eigenfunction expansion is proposed for the integral transform solution of the Navier–Stokes equations in transient regime. The new physically inspired eigenvalue problem with the associated integmaral transformation fully shares the advantages of the previously obtained integral transform solutions based on the streamfunction-only formulation of the Navier–Stokes equations, while offering a direct and formal extension to three-dimensional flows.
Investigation of heat transfer and fluid flow behaviors of CuO/(60:40)% ethylene glycol and water nanofluid through a serpentine milichannel heat exchanger
Authors: Toghraie Davood , Hekmatifar Maboud , Jolfaei Niyusha Adavoodi 
Published: August 2019

Purpose
This paper aims to investigate the three-dimensional (3D) numerical simulations, based on the Navier–Stokes equations and the energy equation. Forced convection of a mixture of (60:40) percent ethylene glycol and water, was used as the base fluid and CuO nanoparticles, through a serpentine minichannel.

Design/methodology/approach
In this simulation, a serpentine mini-channel heat exchanger was simulated. The fluid studied in this simulation was composed of a mixture of (60:40) per cent ethylene glycol and water, was used as the base fluid and CuO nanoparticles. Four slabs and three serpentines were used in this study. The serpentine section is connected to the slab. Three equidistant circular channels (1 mm in diameter) were implemented inside the slab.

Findings
Results show that nanoparticles increase the fluid pressure drop and by changing volume fraction of nanoparticles from 0 to 1 per cent, the pressure drop of nanofluids increases between 42and 47 per cent, for Reynolds numbers from 100 to 500. The existence of serpentine bend in the minichannel heat exchanger causes the heat transfer rate to increase. Increase the volume fraction of nanoparticles reduces the fluid temperature at the outlet of the heat exchanger. The numerical results show that in Re = 500, at the beginning of the last slab in middle channel by changing volume fraction of nanoparticles from 0 to 2 per cent, local Nusselt number 57.40 per cent increase. The existence of the serpentine bend causes the heat transfer rate to increase.

Originality/value
Forced convection of a mixture of (60:40) per cent ethylene glycol and water by using of 3D numerical simulations, based on the Navier–Stokes equations.
Unsteady CHT analysis of a solid state, sensible heat storage for PHES system
Authors: Ziegler Bartosz , Mosiężny Jędrzej , Czyżewski Paweł 
Published: August 2019

Purpose
The aim of this study is to identify key factors limiting efficiency of pumped heat energy storage systems and determine some general features of transient behavior of solid state, sensible heat storages. Moreover, it aimed at establishing a feasible approach to transient conjugate heat transfer (CHT) analyses for such applications.

Design/methodology/approach
A zero-dimensional analytical model is used to determine the system efficiency sensitivity to efficiency of its components. Analysis of argon gas flow in an exemplary configuration of layered bed thermal energy storage is presented. The analysis incorporates a unsteady reynolds averaged navier stokes model with conjugate heat transfer between gas and solid storage core.

Findings
It is established that exergetic efficiency of the heat storage is one of the key factors for the system’s overall performance. Three full cycles of storage charging and discharging having 17 h physical time in total are simulated, with calculation of exergetic efficiency for each of the cycles. From standpoint of the system efficiency, it is concluded that the presented heat storage kind has limited exergetic efficiency because of severe temperature drop at the solid–fluid interface in comparison to granular kind of heat storage devices. From the methodological standpoint, it is concluded that calculating the exergetic efficiency of the heat storage by direct computational fluid dynamics (CFD) analysis requires significant amount of walltime and computational resources.

Originality/value
The paper presents unconventional approach to using standard CFD tools by exploiting numerical diffusion to numerically suppress high-frequency solution oscillations. This strategy grants that the analysis, otherwise requiring impractically long computation walltime, is completed within a practical time.
MHD flow and heat transfer over a permeable stretching/shrinking sheet in a hybrid nanofluid with a convective boundary condition
Authors: Aly Emad H. , Pop Ioan 
Published: August 2019

Purpose
The purpose of this study is to present both effective analytic and numerical solutions to MHD flow and heat transfer past a permeable stretching/shrinking sheet in a hybrid nanofluid with suction/injection and convective boundary conditions. Water (base fluid) nanoparticles of alumina and copper were considered as a hybrid nanofluid.

Design/methodology/approach
Proper-similarity variables were applied to transform the system of partial differential equations into a system of ordinary (similarity) differential equations. Exact analytical solutions were then presented for the dimensionless stream and temperature functions. Further, the authors introduce a very nice analytic and numerical solutions for both small and large values of the magnetic parameter.

Findings
It was found that no/unique/two equal/dual physical solutions exist for the investigated boundary value problem. The physically realizable practice of these solutions depends on the range of the governing parameters. For a stretching/shrinking sheet, it was deduced that a hybrid nanofluid works as a cooler on increasing some of the investigated parameters. Moreover, in the case of a shrinking sheet, the first solutions of hybrid nanofluid are stable and physically realizable rather than the nanofluid, while those of the second solutions are not for both hybrid nanofluid and nanofluid.

Originality/value
The present results for the hybrid nanofluids are new and original, as they successfully extend (generalize) the problems previously considered by different authors for the case of nanofluids.
Earthquake preparedness in higher education structures
Authors: Sohrabizadeh Sanaz , Jahangiri Katayoun , Shafiei Moghaddam Parvin , Safarpour Hamid , Eskandari Zahra 
Published: August 2019

PurposeUniversities and higher education institutes are key pillars of all societies, as the result of their important roles in education, research and training of human resources. Nevertheless, similar to other social structures, universities need to be prepared for natural disasters. This study aims to measure and analyze the level of earthquake preparedness in a higher education institute in Tehran, Iran.Design/methodology/approachThis cross-sectional study was conducted in 2017 in a higher education institute through three stages of tool, namely, development, preparedness evaluation and strength–weakness–opportunity–threat analysis. The valid and reliable tool was applied for assessment of college preparedness through a field survey. Factors affecting the obtained level of preparedness were categorized into internal (strengths and weaknesses) and external (opportunities and threats) factors to decide on an appropriate strategy for promoting the preparedness level.FindingsContent validity index and content validity ratio of the tool were 88 and 98.85 per cent, respectively. The reliability of the tool was measured to be 98 per cent using the kappa coefficient. The level of preparedness was estimated to be weak. The final value of the matrix of internal and external factors was higher than average, which can be improved in the form of strength–opportunity strategy.Originality/valueIt is highly suggested to allocate a specific budget for improvement and evaluation of preparedness measures in all parts of education systems. In addition, making the preparedness measures as the mandatory duty for educational structures can be considered by decision-makers and managers at the national and local levels.
Examining empathy and responsiveness in a high-service context
Authors: Murray John , Elms Jonathan , Curran Mike 
Published: August 2019

Purpose
The delivery of high-quality service is critical for the success, or otherwise, of many retailers. However, despite calls to examine the efficacy of the dimensions of quality in different service contexts, it is still largely unknown how dimensions such as empathy and responsiveness interact to determine consumers’ perceptions of service quality. Recent research also suggests that loyalty strategies may not be equally effective across all services contexts. The purpose of this paper is, therefore, to contribute to the service quality literature by providing a better understanding of how marketing strategy is effectively operationalised into improved services and consumer loyalty in physical stores.

Design/methodology/approach
Consumers from ten stores of one pharmacy retailer were surveyed. The retailer provides high-service levels at present and is examining ways of how to deliver a better quality service to its prescription and non-prescription account holding consumers. By examining consumer loyalties in high-services contexts in pharmacy retailing, the authors also propose how retailers in other sectors can learn to operationalise services quality into increased loyalties.

Findings
The findings of this research demonstrate that empathy, rather than responsiveness, is more important in a high service delivery context such as pharmacy retailing. Non-prescription account holding and non-store loyal consumers also do not perceive that high service responsiveness is compromised by offering of a highly empathetic (and possibly more time consuming) service by the retailer.

Originality/value
These findings present specific implications for retailers in the development of consumer loyalty in a high-service context. Moreover, the findings of this research also illustrate how retailers can more effectively target their investments in service design to enhance service quality and consumer loyalty.
Influence of culture, price perception and mall promotions on Indian consumers’ commitment towards malls
Authors: Khare Arpita , Sarkar Subhro , Patel Shivan Sanjay 
Published: August 2019

PurposeThe exponential growth of organised retail has led to competition among mall retailers with the use of promotions to increase traffic to the stores. The footfall in the malls is dependent on the sales generated by various retail stores located in the malls. The current research analyses the role of promotions used by the retailers located in Indian malls in improving consumers’ commitment towards the mall. The purpose of this paper is to examine the influence of culture, personality traits like value consciousness, price consciousness and coupon proneness, and promotions used by retailers in malls on consumers’ commitment towards the malls.Design/methodology/approachEight malls from six cities were selected by popularity and footfall. Mall-intercept technique along with systematic sampling was used to collect data from 453 mall shoppers using a self-administered questionnaire. Structural equation modelling was used to analyse the data.FindingsRetailer promotions were categorised under discounts, promotional offers and loyalty cards. The findings suggest that cultural values of long-term orientation and masculinity have an impact on consumers’ perceptions towards discounts, promotional offers and loyalty programmes. Different promotional strategies had varied responses from consumers.Practical implicationsMall retailers can use the findings to design promotions according to the cultural values of masculinity and long-term orientation. Loyalty programmes can symbolise status and long-term relationship with retailer. Commitment towards retailers and consequently malls could be enhanced through discounts and promotional offers. Different promotional strategies can be used to target price-conscious consumers and increase footfall in the stores. The linkages between cultural dimensions and promotional techniques would be helpful in targeting different consumer groups by designing promotions which are in line with cultural values.Originality/valueThe research extends the existing literature on mall retailing by analysing the importance of cultural dimensions on sales promotions strategies used by retailers in malls. The study establishes that perceptions towards retailer promotions differ across cultures. Different promotions offered by retailers generate varied response from consumers across different cultures which would influence their commitment towards malls.