bluuebunny/crossref_metadata_2025_split huggingface dataset:
Competitiveness and connectivity in design innovation: a study of Norwegian furniture industry
Authors: Qiu Xinlu , Cano-Kollmann Marcelo , Mudambi Ram 
Published: August 2017

PurposeThe purpose of this paper is to explore how firms achieve competitiveness by implementing design-driven innovation.Design/methodology/approachThis paper is a detailed longitudinal analysis of the design innovation underpinning the Norwegian furniture industry. Using a data set spanning 40 years (1976-2015) of design patents by both Norwegian firms and inventors, the authors map the coinventor connectivity of the design-innovation clusters of Norway, both within the country and with foreign locations.FindingsUsing network analysis, the authors find that most of the rise of co-inventor connectivity within Norwegian furniture industry’s design innovation is occurring within the country. More surprisingly, the leading firms and star inventors are less likely to collaborate internationally, i.e. they are characterized by greater innovative “lock-in”.Research limitations/implicationsThe exploration of all the potential reasons for the “lock-in” in design innovation of the Norwegian furniture industry is beyond the scope of this paper. A particularly interesting avenue for future research would be to compare the coinventor connectivity of traditional sectors like furniture with more high technology sectors within Norway.Originality/valueBy assessing a detailed and historical context of the evolution of Norwegian furniture industry, the paper provides a fairly comprehensive study of design innovation as a source of firms’ competitiveness, which has been rarely explored. The authors suggest that innovative “lock-in” may be more likely to arise in the traditional sectors of an economy and the forces may be particularly strong for those firms and individuals that have the highest domestic connectedness and status.
Identification of plastic anisotropy using spherical indentation on different anisotropic yield criterions
Authors: Zhan Xuepeng , Wu Jianjun , Wang Mingzhi , Hui Yu , Wu Hongfei , Shang Qi , Guo Ruichao 
Published: August 2017

Purpose
This paper aims to first apply more advanced anisotropic yield criterions as Yld91 and Yld2004 to spherical indentation simulations, and investigate plastic anisotropy identified from indentation simulations following different yield criterions (Hill48, Yld91, Yld2004) to discover laws. It also aims to compare the difference in plastic anisotropy identified from indentation on three yield criterions and evaluate the applicability of plastic anisotropy.

Design/methodology/approach
This paper uses indentation simulations on different yield criterions to identify plastic anisotropy. First, the trust-region techniques based on the nonlinear least-squares method are used to determine anisotropy coefficients of Yld91 and Yld2004. Then, Yld91 and Yld2004 are implemented into ABAQUS software using user-defined material (UMAT) subroutines with the proposed universal structure. Finally, through considering comprehensively the key factors, the locations of the optimal data acquisition points in indentation simulations on different yield criterions are determined. And, the identified stress–strain curves are compared with experimental data.

Findings
This paper discovers that indentation on Yld2004 is able to fully identify difference in equivalent plastic strain between 0° and 90° directions when indentation depth ht is relatively smaller. And, this research demonstrates conclusively that plastic anisotropy identified from indentation on Yld2004 and Yld91 is more applicable at larger strains than that on Hill48, and that on Yld2004 is more applicable than that on Yld91, overall. In addition, the method on the determination of the locations of the optimal data acquisition points is demonstrated to be also valid for anisotropic material.

Originality/value
This paper first investigates plastic anisotropic properties and laws identified from indentation simulations following more advanced anisotropic yield criterions and provides reference for later research.
A shortcut algorithm for solving long-term conjugate heat transfer problems based on quasi-steady flow
Authors: Dong Sujun , Meng Fanchao , Guo Dechun , Kang Hongling 
Published: August 2017

Purpose
The time of tightly coupled transient calculation and the accuracy of conventional loosely coupled algorithm make it difficult to meet the engineering design requirements for long-term conjugate heat transfer (CHT) problems. The purpose of this paper is to propose a new loosely coupled algorithm with sufficient accuracy and less calculation time on the basis of the quasi-steady flow field. Through this algorithm, it will be possible to reduce the update frequency of the flow field and devise a strategy by which to reasonably determine the update steps.

Design/methodology/approach
In this paper, the new algorithm updates the flow field by solving the steady governing equations in the fluid region and by calculating the transient temperature distribution until the next update of the fluid flow, by means of solving the transient energy equations in the entire computational domain. The authors propose a strategy by which to determine the update step, by using the engineering empirical formula of the Nusselt number, on the basis of the changes of the inlet and outlet boundary conditions.

Findings
Taking a duct heated by an inner forced air flow heating process as an example, the comparison results for the tightly coupled transient calculation by Fluent software shows that the new algorithm is able to significantly reduce the calculation time of the transient temperature distribution with reasonable accuracy. For example, the respective computing times are reduced to 22.8 and 40 per cent, while the duct wall temperature deviations are 7 and 5 per cent, using the two flow update time steps of 100 and 50 s on the variable inlet-flow rate conditions.

Originality/value
The new algorithm outlined in this paper further improves the calculated performance and meets the engineering design requirements for long-term CHT problems.
Portfolio selection with fuzzy synthetic evaluation and genetic algorithm
Authors: Nayebpur Hamid , Nazem Bokaei Mohsen 
Published: August 2017

Purpose
The purpose of this paper is to present a new technique to portfolio selection using a genetic algorithm (GA) and fuzzy synthetic evaluation (FSE). Portfolio selection is a multi-objective/criteria decision-making problem in financial management.

Design/methodology/approach
The proposed approach solves the problem in two stages. In the first stage, by using a GA and FSE, the weight of criteria will be calculated. Euclidean distance between the computed overall performance evaluation and the surveyed overall performance evaluation is used to determine the weight of criteria. In the second stage, by using a GA and FSE, portfolios will be prioritized. A multi-objective GA is used to determine return and risk in the efficient frontier. A decision making approach is based on FSE to select the best portfolio from among the solutions obtained by a multi objective GA.

Findings
The main advantage of the proposed approach is to help an investor to find a portfolio which has best performance, and portfolio selection does not rely on expert knowledge.

Originality/value
The value of the paper is in it using a new approach to determine the weight of criteria and portfolio selection. It surveys firms’ performance in the stock market, based on which the weight of criteria will be determined and portfolios will be prioritized.
Laser-range-finder localization based fuzzy control for mobile robots
Authors: Sun Chung-Hsun , Huang Sheng-Kai , Chen Hsuan , Ye Cheng-Wei , Wang Yin-Tien , Wang Wen-June 
Published: August 2017

Purpose
Based on laser-range-finder (LRF) sensing, the control design of location and orientation stabilization for the mobile robot is investigated. However, the practical limitation of the LRF sensing is usually ignored in the control design, which leads to incorrect localization and unexpected control results. The purpose of this study is to design the fuzzy controller subject to the practical limitation on the LRF-based localization for a differentially driven wheeled mobile robot.

Design/methodology/approach
First, the Takagi–Sugeno (T-S) fuzzy model is derived from the polar kinematic model of a differentially driven mobile robot. Then, the fuzzy controller is designed to the derived T-S fuzzy kinematic model in accordance with the Lyapunov stabilization theorem. The derived Lyapunov stabilization conditions for the fuzzy control design are expressed as the linear matrix inequality (LMI) form and effectively solved by LMI tools. The practical limitation on the LRF-based localization is also expressed as the LMI form and simultaneously solved with the control design.

Finding
The location and posture stabilization experiments are carried out on a mobile robot with LRF-based localization to prove the effectiveness of the proposed T-S fuzzy model-based control design. Furthermore, the ground truth experiment evaluates the accuracy of LRF-based localization.

Originality/value
The contribution of this study is to develop the fuzzy control law for a differentially driven wheeled mobile robot under the practical limitation on LRF-based localization. The proposed control design can be applied to other robots with practical limitations on the sensors.
Simulation of dispersed phase evolution for immiscible polymer blends in injection molding
Authors: Chen Dan , Liu Fen , Zhang Yi , Zhang Yun , Zhou Huamin 
Published: August 2017

Purpose
The numerical simulation of dispersed-phase evolution in injection molding process of polymer blends is of great significance in both adjusting material microstructure and improving performances of the final products. This paper aims to present a numerical strategy for the simulation of dispersed-phase evolution for immiscible polymer blends in injection molding.

Design/methodology/approach
First, the dispersed-phase modeling is discussed in detail. Then the Maffettone–Minale model, affine deformation model, breakup model and coalescence statistical model are chosen for the dispersed-phase evolution. A general coupled model of microscopic morphological evolution and macroscopic flow field is constructed. Besides, a stable finite element simulation strategy based on pressure-stabilizing/Petrov–Galerkin/streamline-upwind/Petrov–Galerkin method is adopted for both scales.

Findings
Finally, the simulation results are compared and evaluated with the experimental data, suggesting the reliability of the presented numerical strategy.

Originality/value
The coupled modeling of dispersed-phase and complex flow field during injection molding and the tracing and simulation of droplet evolution during the whole process can be achieved.
On the time-splitting Fourier spectral method for the coupled Klein-Gordon-Schrödinger equations in the quantum field theory
Authors: Saha Ray S. 
Published: August 2017

Purpose
The purpose of this paper is to consider the time-splitting Fourier spectral (TSFS) method to solve the fractional coupled Klein–Gordon–Schrödinger (K-G-S) equations. A time-splitting spectral approach is applied for discretizing the Schrödinger-like equation and along with that, a pseudospectral discretization has been accurately utilized for the temporal derivatives in the Klein–Gordon-like equation. Furthermore, the time-splitting scheme is proved to be unconditionally stable. Numerical experiments guarantee high accuracy of the TSFS scheme for the K-G-S equations. Here, the derivative of fractional order is taken in the Riesz sense.

Design/methodology/approach
The focus of this paper is to study the Riesz fractional coupled K-G-S equations using the TSFS method. This method is dependent on evaluating the solution to the given problem in small steps, and treating the nonlinear and linear steps separately. The nonlinear step is made in the time domain, while the linear step is made in the frequency domain, which necessitates the use of Fourier transform back and forth. It is a very effective, powerful and efficient method to solve the nonlinear differential equations, as in previous works (Bao et al., 2002; Bao and Yang, 2007; Muslu and Erbay, 2003; Borluk et al., 2007), the initial and boundary-value problem is decomposed into linear and nonlinear subproblems. Summarizing the technique of the TSFS method, it can be stated that first the Schrödinger-like equation is solved in two splitting steps. Then, the Klein–Gordon-like equation is solved by discretizing the spatial derivatives by means of the pseudospectral method.

Findings
The utilized method is found to be very efficient and accurate. Moreover, the time-splitting spectral scheme is found to be unconditionally stable. By means of thorough study, it is found that the spectral method is time-reversible, is gauge-invariant and also conserves the total charge. Moreover, the results have been graphically presented to exhibit the accuracy of the proposed methods. Apart from that, the numerical solutions have been also compared with the exact solutions. Numerical experiments establish that the proposed technique manifests high accuracy and efficiency.

Originality/value
To the authors’ best knowledge, the Riesz fractional coupled K-G-S equations have been for the first time solved by using the TSFS method.
Market development through integrating value chains – a case of Patanjali Food and Herbal Park
Authors: Sengar Anita , Sharma Vinay , Agrawal Rajat 
Published: August 2017

Subject area
Market development.

Study level/applicability
This case is intended to be used in strategic management, operations management for both undergraduate and graduate courses. It can also be used for value innovation and market development.

Case overview
This case focuses on market development by Patanjali, a fast-growing organization crossing US$1bn of sales in five years of time span and declaring a target of doubling this figure in the financial year 2016-2017 (to reach US$1,500m). The prime focus of Patanjali is the health food segment based on herbal and Ayurveda science through the use of organically grown agricultural produce by integrating the associated value chains while radically benefitting all the stakeholders in a two-way process as suppliers as well as buyers/consumers. The fundamental context of the case is associated with the value chain development in terms of value addition on the basis of the organizational and leadership values in all the elements of the value chain of Patanjali products starting from suppliers to customers. The case emphasizes the role of the Patanjali Food & Herbal park in the value chain. Patanjali Food & Herbal Park is constantly striving for nation building more than profit accumulation. They have created a sustainable business benefiting all the stakeholders. The backbone of the Patanjali Food & Herbal Park lies in robust backward linkage and forward linkage. The context of the case presents an account of how the values based integration of the value chain is a strategic advantage and safeguards an organization from business environment threats.

Expected learning outcomes
The context of the case presents an account of how values based integration of the value chain is a strategic advantage and safeguard an organization from business environment threats. The case has a deep-rooted theoretical association with models like Porter’s Five Forces model on the one hand and also exemplifies how an organization can use blue ocean strategy through value-based value innovation. The context of the Black Swan perspective also emerges in the narration.

Supplementary materials
Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

Subject code
CSS 11: Strategy.
MHD heat transfer and entropy generation in inclined trapezoidal cavity filled with nanofluid
Authors: Milani Shirvan Kamel , Mirzakhanlari Soroush , Öztop Hakan F. , Mamourian Mojtaba , Al-Salem Khaled 
Published: August 2017

Purpose
The main purpose of this paper is to define 2D numerical study and a sensitivity analysis of natural convection heat transfer and entropy generation of Al2O3-water nanofluid in a trapezoidal cavity, with considering of the presence of a constant axial magnetic field.

Design/methodology/approach
The effects of the three effective parameters, the Rayleigh number, Hartmann number (Ha) and also inclination angle on the heat transfer performance and entropy generation, are investigated using a finite volume approach. The sensitivity analysis of the effective parameters is done utilizing the response surface methodology.

Findings
The results obtained showed that the mean Nusselt number and total entropy generation increase with the Rayleigh number. Also, increasing the inclination angle reduces the mean Nusselt number (regardless of the magnetic field). In addition, it is found that the mean Nusselt number increases until Ha = 10 and then decreases by increasing of Ha number, regardless of the inclination angle. The sensitivity of the mean Nusselt number to the Ha number and inclination angle α is negative. It is concluded that to maximize the mean Nusselt number and minimize the entropy generation, simultaneously, the Ha and inclination angle must be 50° and 0°, respectively.

Originality/value
There is no published research in the literature about sensitivity analysis of magneto-hydrodynamic heat transfer and entropy generation in inclined trapezoidal cavity filled with nanofluid.
Two wave mode higher-order modified KdV equations
Authors: Wazwaz Abdul-Majid 
Published: August 2017

Purpose
The purpose of this paper is concerned with developing two-mode higher-order modified Korteweg-de Vries (KdV) equations. The study shows that multiple soliton solutions exist for essential conditions related to the nonlinearity and dispersion parameters.

Design/methodology/approach
The proposed technique for constructing a two-wave model, as presented in this work, has been shown to be very efficient. The employed approach formally derives the essential conditions for soliton solutions to exist.

Findings
The examined two-wave model features interesting results in propagation of waves and fluid flow.

Research limitations/implications
The paper presents a new and efficient algorithm for constructing and studying two-wave-mode higher-order modified KdV equations.

Practical implications
A two-wave model was constructed for higher-order modified KdV equations. The essential conditions for multiple soliton solutions to exist were derived.

Social implications
The work shows the distinct features of the standard equation and the newly developed equation.

Originality/value
The work is original and this is the first time for two-wave-mode higher-order modified KdV equations to be constructed and studied.
Job resourcefulness, work engagement and prosocial service behaviors in the hospitality industry
Authors: Cheng Jui-Chang , Chen Chien-Yu 
Published: August 2017

Purpose
Prosocial service behaviors play a major role in the hospitality industry. However, few studies have examined how job resourcefulness affects prosocial service behaviors. This paper aims to investigate the relationship between job resourcefulness and prosocial service behaviors as well as clarify the mediating effect of work engagement.

Design/methodology/approach
A questionnaire was developed to collect data from 282 frontline service employees in Taiwan’s hotel industry. Structural equation modeling was conducted to test the hypotheses of this research.

Findings
The results indicate that job resourcefulness is positively related to role-prescribed service behaviors, extra-role service behaviors and cooperation. Furthermore, work engagement mediates the relationship between job resourcefulness and prosocial service behaviors.

Research limitations/implications
The design of cross-sectional research restricts inference to the findings of cause–effect relationships. Also, the design of this study could not rule out the effect of common method variance, as all the data used in the study were acquired using the same questionnaire.

Originality/value
The current study contributes to the hospitality management research by investigating the link between job resourcefulness and prosocial service behaviors, and elaborating the partially mediating role of work engagement in this relationship.
Presenteeism of hotel employees: interaction effects of empowerment and hardiness
Authors: Chia Yew Ming , Chu Mackayla J.T. 
Published: August 2017

PurposeThis study aims to investigate the two-way interaction effects of empowerment and hardiness on the presenteeism of hotel employees.Design/methodology/approachData were collected from 358 hotel employees in Sabah, East Malaysia, via a questionnaire survey and analyzed using multiplicative regression analysis.FindingsThe results confirm the presence of a two-way interaction effect between empowerment and hardiness on the presenteeism of hotel employees at a significance level of 0.01. Further analysis indicates that the higher the level of hardiness, the greater is its negative effect on the relationship between empowerment and the presenteeism of hotel employees.Research limitations/implicationsThe survey was cross-sectional and causal relationships among the variables cannot be inferred. The results were gathered from selected hotels and should not be generalized to all hotel employees in Sabah, East Malaysia.Practical implicationsThe findings challenge the assumption of a positive association between empowerment and presenteeism and demonstrate that different levels of hardiness can influence this relationship. When empowering employees, management staff should also consider the provision of resilience-related training programs for less hardy employees. This would enable such employees to handle their presenteeism behavior arising from the increased level of empowerment.Originality/valueThis study provides the first empirical evidence of a two-way interaction effect of predictors on the presenteeism of hotel employees and could serve to influence mainstream journals in the presenteeism literature. Researchers could apply the analytical approach to examine future studies relating to higher-order effects of predictors on the presenteeism of hotel employees.