bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simless GSM positioning for navigation in GPS-denied environments
Authors: Soldado Serrano Inmaculada , García Doblado José , Finazzi Ignazio Federico , Martín Prats María Ángeles 
Published: October 2018

Purpose
Until now, air navigation systems have mainly relied on global navigation satellite systems (GNSS) on the worldwide spread global positioning system. However, the so-called GNSS-denied environments open a new research line which pursues the development of alternative technologies which will cover this gap in positioning systems’ services.

Design/methodology/approach
This paper presents the possibility of using positioning systems based on global system for mobile communications (GSM) signal. This approach developed in a standalone device will provide real-time information. The presented algorithm pursues a new methodology for providing useful information.

Findings
Among all the different technologies aimed at giving a navigation solution in the absence of any kind of GNSS in which this paper is based, it advocates for the use of the signals of opportunity, particularly the usage of GSM.

Practical implications
Technology is currently immersed in an era of continuous progress and expansion of navigation systems. These are evolving toward high performance systems, offering precise, efficient and safe air navigation. In addition, the growing demand for unmanned aerial vehicles increases the level of exigency on this activity even more. Therefore, in the context of the development of unmanned navigation technologies, the aim is to implement positioning systems that will allow high precision even in though environments.

Originality/value
Referencing the SIMless concept, a SIM-free system is described in this paper. The SIM-free system is supported by open data bases and permits the positioning based on the information sniffed from the signals broadcast by a set of several nearby base station of the GSM network. Hence, it provides same and in some cases even better accuracies than the already developed techniques, not being necessary to synchronize the link between the mobile terminal and the base station transceiver (BTS).
Efficient structural analysis of gas turbine blades
Authors: Rogge Timo , Berger Ricarda , Pohle Linus , Rolfes Raimund , Wallaschek Jörg 
Published: October 2018

Purpose
The purpose of this study a fast procedure for the structural analysis of gas turbine blades in aircraft engines. In this connection, investigations on the behavior of gas turbine blades concentrate on the analysis and evaluation of starting dynamics and fatigue strength. Besides, the influence of structural mistuning on the vibration characteristics of the single blade is analyzed and discussed.

Design/methodology/approach
A basic computation cycle is generated from a flight profile to describe the operating history of the gas turbine blade properly. Within an approximation approach for high-frequency vibrations, maximum vibration amplitudes are computed by superposition of stationary frequency responses by means of weighting functions. In addition, a two-way coupling approach determines the influence of structural mistuning on the vibration of a single blade. Fatigue strength of gas turbine blades is analyzed with a semi-analytical approach. The progressive damage analysis is based on MINER’s damage accumulation assuming a quasi-stable behavior of the structure.

Findings
The application to a gas turbine blade shows the computational capabilities of the approach presented. Structural characteristics are obtained by robust and stable computations using a detailed finite element model considering different load conditions. A high quality of results is realized while reducing the numerical costs significantly.

Research limitations/implications
The method used for analyzing the starting dynamics is based on the assumption of a quasi-static state. For structures with a sufficiently high stiffness, such as the gas turbine blades in the present work, this procedure is justified. The fatigue damage approach relies on the existence of a quasi-stable cyclic stress condition, which in general occurs for isotropic materials, as is the case for gas turbine blades.

Practical implications
Owing to the use of efficient analysis methods, a fast evaluation of the gas turbine blade within a stochastic analysis is feasible.

Originality/value
The fast numerical methods and the use of the full finite element model enable performing a structural analysis of any blade structure with a high quality of results.
A distributed and integrated method for cooperative mission planning of multiple heterogeneous UAVs
Authors: WU Weinan , Cui Naigang 
Published: October 2018

Purpose
The purpose of this paper is to develop a distributed and integrated method to get a fast and feasible solution for cooperative mission planning of multiple heterogeneous unmanned aerial vehicles (UAVs).

Design/methodology/approach
In this study, the planning process is conducted in a distributed framework; the cooperative mission planning problem is reformulated with some specific constraints in the real mission; a distributed genetic algorithm is the algorithm proposed for searching for the optimal solution; genes of the chromosome are modified to adapt to the heterogeneous characteristic of UAVs; a fixed-wing UAV’s six degrees-of-freedom (DOF) model with a path following method is used to test the proposed mission planning method.

Findings
This method not only has the ability to obtain good feasible solutions but also improves the operating rate vastly.

Research limitations/implications
This study is only applied to the case where the communication among UAVs is linked during the mission.

Practical implications
This study is expected to be practical for a real mission because of its fast operating rate and good feasible solution.

Originality/value
This solution is tested on a fixed-wing UAV’s 6-DOF model by a path following method, so it is believable from the perspective of an autonomous UAV guidance and control system.
What drives consumers’ mobile shopping? 4Ps or shopping preferences?
Authors: Chen Hsiu-Ju 
Published: October 2018

Purpose
Mobile shopping emerges, but the marketing factors driving consumers’ mobile shopping lack clarification. Literature gaps also exist to view mobile shopping from a consumer behavior’s perspective. The purpose of this paper therefore is to empirically explore the issue based on the lifestyle perspective, 4Ps marketing theory and the information system (IS) success model.

Design/methodology/approach
A survey method was adopted. Data were gathered from consumers who had experience in mobile shopping. The collected data were analyzed with PLS to explore the issues.

Findings
The results showed that platform use habit, price comparison preference, shopping independence preference and promotion marketing quality were significantly associated with consumers’ use of mobile shopping apps/websites. They also showed that promotion marketing quality, price marketing quality and product marketing quality were the important marketing factors driving consumers’ user satisfaction of mobile shopping apps/websites. Finally, the results also indicated the importance of both consumers’ use and user satisfaction of mobile shopping apps/websites in arousing their continuous use intention.

Research limitations/implications
The results of the study bridge the gap between the 4Ps marketing theory and the IS success model. They provide a direction for further studies to bridge the marketing theories and the IS theories in exploring the development of mobile commerce.

Practical implications
The results facilitate the management of mobile shopping apps/websites in building and keeping a long-term relationship with consumers through providing good marketing qualities in the core marketing mix. The results also indicate the importance of user satisfaction in branding management and relationship management of mobile shopping apps/websites.

Originality/value
The results showed that price comparison preference and shopping independence preference were significantly associated with consumers’ use of mobile shopping apps/websites due to the convenient access empowered by mobility in shopping services. The results also suggest that with good design in 4Ps marketing qualities of mobile shopping apps/websites, including product, price and promotion, mobile shopping could be a suitable lifestyle satisfying consumers. However, the results also showed that factors driving consumers’ system use and user satisfaction of mobile shopping apps/websites were not the same. Finally, the results validated the significant impact of both system use and user satisfaction in activating consumers’ continuance intention of mobile shopping. They provided a positive link between consumers’ mobile shopping apps/websites use to their keeping the lifestyle of mobile shopping.
Modeling risk governance and risk perception in personal prevention with regard to food safety issues
Authors: Zhang Huan , Gao Na , Wang Yean , Han Yixuan 
Published: October 2018

PurposeThe purpose of this paper is to model how risk governance (RG) influences risk prevention behaviors toward food safety issues, considering the perception of related risks in the Taiwanese context.Design/methodology/approachThe national representative data on risk society modules from the Taiwan Social Change Survey data were used (sample size = 2,005). The procedure for the analysis consisted of investigation of the model fit indices of structural equation modeling, incorporating the mediation effect. Multiple-group analysis was used to examine the moderation effects.FindingsResults show that the theory of reasoned action (TRA) and the advanced TRA can accurately explain personal risk perception (RP) (R2=0.40) and risk prevention (R2=0.42). Results also suggest that RG institutions can affect personal RP and risk prevention through subjective norms. In addition, moderation effects of media and gender were found.Originality/valueThis study is one of the first attempts to examine the RG effects on RP and risk prevention behavior of food safety issues in Taiwan. The results and findings may be helpful for RG institutions.
The problem of heterogeneity between protected geographical indications: a meta-analysis
Authors: Leufkens Daniel 
Published: October 2018

Purpose
For a long time the European geographical indication (GI) regulation has been of great interest to economists and policymakers. To justify exclusive European regulation it is necessary to prove the positive value of a GI quality signal (i.e. label), which is often achieved by quantifying its monetary value for the consumers. But even though a large number of literary contributions already deal with this question, they lack the evaluation of overall effect sizes for the GI label. The purpose of this paper is, therefore, to quantify and evaluate the overall marginal consumer willingness to pay for the European GI label.

Design/methodology/approach
To reach this aim, a meta-analysis is used for which a literature survey had been carried out in order to determine the GI label effects (LEs). In addition to previous works, this paper not only includes a meta-analysis, but also implements a heterogeneity analysis to distinguish between the LEs of individual GI standards. To eliminate study- and product-specific determinants of heterogeneity, moderator variables are used.

Findings
The empirical results indicate that consumers have a highly significant and positive marginal willingness to pay for GIs. However, the marginal willingness to pay differs significantly between the individual GI standards and indicates great heterogeneity between the protected products.

Originality/value
As an extension to previous studies and meta-analysis; this paper includes the most extensive GIs meta-data set so far, and conducts for the first time an independent heterogeneity analysis to distinguish between the LEs of individual GI standards and implements a moderator analysis to eliminate study- and product-specific determinants of heterogeneity from the GI effects.
Heat generating porous matrix effects on Brownian motion of nanofluid
Authors: Zehforoosh Aydin , Hossainpour Siamak , Rashidi Mohammad Mehdi 
Published: October 2018

Purpose
The purpose of this study is to indicate the effect of mounting heat generating porous matrix in a close cavity on the Brownian term of CuO-water nanofluid and its impact on improving the Nusselt number.

Design/methodology/approach
Because of the presence of heat source in porous matrix, couple of energy equations is solved for porous matrix and nanofluid separately. Thermal conductivity and viscosity of nanofluid were assumed to be consisting of a static component and a Brownian component that were functions of volume fraction of the nanofluid and temperature. To explain the effect of the Brownian term on the flow and heat fields, different parameters such as heat conduction ratio, interstitial heat transfer coefficient, Rayleigh number, concentration of nanoparticles and porous material porosity were investigated and compared to those of the non-Brownian solution.

Findings
The Brownian term caused the cooling of porous matrix because of rising thermal conductivity. Mounting the porous material into cavity changes the temperature distribution and increases Brownian term effect and heat transfer functionality of the nanofluid. Besides, the effect of the Brownian term was seen to be greatest at low Rayleigh number, low-porosity and small thermal conductivity of the porous matrix. It is noteworthy that because of decrement of thermal conduction in high porosities, the impact of Brownian term drops severely making it possible to obtain reliable results even in the case of neglecting Brownian term in these porosities.

Originality/value
The effect of mounting the porous matrix with internal heat generation was investigated on the improvement of variable properties of nanofluid.
The effects of self-regulated learning and cognitive load on beginning to watch and completing video lectures at a cyber-university
Authors: Hughes Christopher , Costley Jamie , Lange Christopher 
Published: October 2018

Purpose
The paper aims to examine the effect of levels of self-regulated effort (SRE) and levels of cognitive load on the watching and completing of video lectures used as the main source of instruction in online learning environments.

Design/methodology/approach
A survey provided data on the students’ engagement with video lectures, their level of SRE and the level of cognitive load they perceived while watching video lectures. The relationships between these variables and statistical significance were analyzed.

Findings
There were three key findings: a positive relationship between SRE and both watching and completing lectures; a negative relationship between SRE and perceptions of existing cognitive load; and students in different demographic groups watched fewer lectures, experienced higher cognitive load and reported lower levels of SRE.

Research limitations/implications
Implications of this study are that video lecture creation would benefit from the development of best practices, consideration of students’ levels of self-regulation, minimization of extraneous load and individual differences among groups of students. Limitations are the context-specific nature of the findings and the fact that data were drawn from self-reported survey responses, meaning they are subjective in nature.

Originality/value
The originality of this paper lies in its investigation of relationship between SRE, cognitive load and video lecture viewership. No research of this topic could be found during the literature review. Findings are of value to those interested in reaping increased levels of video lecture viewership by showing elements that will encourage engagement, satisfaction and better transmission of instruction.
Effects of exchange rate and income on the US bilateral trade with China under Chinese managed floating exchange rate system
Authors: Wang Yongqing 
Published: October 2018

Purpose
China’s exchange rate system remains a public concern. This paper aims to investigate the effects of the appreciation of the US dollar (or depreciation of Chinese Yuan) under China’s “managed floating exchange rate system” on the US bilateral trade deficit with China, the US exports to China and the US imports from China.

Design/methodology/approach
The author uses quarterly data from 2005Q3 to 2017Q3 and applies autoregressive distributed lags model to carry out the empirical analysis.

Findings
The results suggest that both the US and Chinese income are important determinants of the US bilateral trade deficit with China, the US exports to China and the US imports from China. Further, the appreciation of the US dollar with respect to Chinese currency may discourage the US exports to China, but will not considerably promote the US imports from China in the long run. Finally, the appreciation of the US dollar does not contribute significantly to the US trade deficit with China in the long run.

Originality/value
Policymakers may want to pay attention to the results of currency depreciation on bilateral trade flows and trade balance in both the short and the long run. The results are different. Policymakers may also want to keep the following in mind: both the US and Chinese income are vital factors of bilateral trade balance, exports and imports.
Size premium, value premium and market timing: evidence from an emerging economy
Authors: Rashid Syed Haroon , Sadaqat Mohsin , Jebran Khalil , Memon Zulfiqar Ali 
Published: October 2018

Purpose
This study aims to investigate the market timing strategy in different market conditions (i.e. up, down, normal and in-financial-crisis situation) in the emerging market of Pakistan over the period 1995 to 2015. Furthermore, this study tests the validity of the capital asset pricing model (CAPM) and Fama and French model.

Design/methodology/approach
This study considers monthly stock returns of 167 firms and constructs six different portfolios on the basis of different size and book to market ratio. The Treynor and Mazuy model is used to capture the market timing strategy.

Findings
The results indicate evidence of the market timing in normal market conditions. However, there is less supportive evidence of market timing in up-market, down-market and in-financial-crisis situations. This study also confirms the validity of the capital asset pricing model and Fama and French three-factor model with strong support of value premium and size premium in the stock market.

Practical implications
The findings of this study are helpful to companies in estimating the cost of issuing equity more accurately. The investors can use market timing to make their investment in a more better and profitable manner.

Originality/value
Unlike other previous studies, this study considers an extended period to test the validity of the capital asset pricing model and Fama and French model. In addition, this study is novel in testing the marketing timing of the firms in the context of emerging economy of Pakistan.
Perspective-varying effects of peripheral knowledge in IT outsourcing: when vendor and client are collated
Authors: Shim Seonyoung , Lee Jung , Kim Sojung 
Published: October 2018

PurposeThis study aims to examine how the role of peripheral knowledge changes along with the perspectives of vendor and client in inter-organizational IT outsourcing. To this end, this study tests the effects of the peripheral knowledge of vendors and clients on IT outsourcing performance under three different combinations of performance-assessing views from both parties.Design/methodology/approachTo contrast the effects of the peripheral knowledge of vendors and clients based on their views, this study collects matching data on 107 projects from both parties. The survey method is adopted to measure the peripheral knowledge levels of vendors and clients and IT outsourcing success. The associations between peripheral knowledge and IT outsourcing performance are then assessed when the views match, cross and agree to a certain level.FindingsThe peripheral knowledge of vendors plays a more significant role than that of clients in most IT outsourcing cases. Moreover, the agreement between the peripheral knowledge of vendors and clients shows a moderating effect only when the performance is assessed by clients than by vendors.Originality/valueThis study contrasts the peripheral knowledge of vendors and clients by altering performance-assessing views in IT outsourcing. This study also rationalizes why the peripheral knowledge of vendors is more important than that of clients, as well as explains whose perspective is more significant when the performance is assessed.
Knowledge management and value creation in the post-crisis banking system
Authors: Campanella Francesco , Derhy Armand , Gangi Francesco 
Published: October 2018

Purpose
This paper aims to demonstrate the existence of a relationship between the knowledge creation process and competitive advantage in the banking system. The framework of knowledge creation processes adopted in this research is the spiral of knowledge proposed by Nonaka and Takeuchi (1995). The concept of competitive advantage is limited to the measurement of economic value by adopting methods that compare the financial performance of the banks with related markets. The objective of this research is to answer the following research question: Which factors of the spiral of knowledge are relevant for increasing a bank’s economic value?

Design/methodology/approach
The sample used for this empirical research is composed of 960 banks operating in 24 countries. The sample was analyzed from 2012 to 2015 and includes 3,840 observations. Regarding the methodology, hypothesis demonstration was carried out using a panel analysis (generalized least squares regression) on a set of variables.

Findings
The results show that Nonaka and Takeushi’s spiral of knowledge has a positive influence on value creation in the banking system. However, not all factors of the four modalities of converting tacit knowledge into explicit knowledge and vice versa have a positive influence on the economic value of banks. Therefore, by excluding factors that have a negative influence or are not significant, it is possible to formulate an empirical model that illustrates the relationship between the spiral of knowledge and the economic value of banks.

Originality/value
There is a lack of studies on the knowledge creation process in the banking system because most of the research is geographically limited, and empirical tests are performed on small samples. Second, generally, these studies are limited to the relationship between intellectual capital and bank performance measured by accounting ratios. However, intellectual capital is only one component of the broader concept of knowledge. This research uses a large and geographically diverse sample and studies the relationship between the spiral of knowledge and economic value, which is measured by various financial techniques.