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1 – 10 of 268Abstract
Purpose
The purpose of this paper is to relate to the real-time navigation and tracking of pedestrians in a closed environment. To restrain accumulated error of low-cost microelectromechanical system inertial navigation system and adapt to the real-time navigation of pedestrians at different speeds, the authors proposed an improved inertial navigation system (INS)/pedestrian dead reckoning (PDR)/ultra wideband (UWB) integrated positioning method for indoor foot-mounted pedestrians.
Design/methodology/approach
This paper proposes a self-adaptive integrated positioning algorithm that can recognize multi-gait and realize a high accurate pedestrian multi-gait indoor positioning. First, the corresponding gait method is used to detect different gaits of pedestrians at different velocities; second, the INS/PDR/UWB integrated system is used to get the positioning information. Thus, the INS/UWB integrated system is used when the pedestrian moves at normal speed; the PDR/UWB integrated system is used when the pedestrian moves at rapid speed. Finally, the adaptive Kalman filter correction method is adopted to modify system errors and improve the positioning performance of integrated system.
Findings
The algorithm presented in this paper improves performance of indoor pedestrian integrated positioning system from three aspects: in the view of different pedestrian gaits at different speeds, the zero velocity detection and stride frequency detection are adopted on the integrated positioning system. Further, the accuracy of inertial positioning systems can be improved; the attitude fusion filter is used to obtain the optimal quaternion and improve the accuracy of INS positioning system and PDR positioning system; because of the errors of adaptive integrated positioning system, the adaptive filter is proposed to correct errors and improve integrated positioning accuracy and stability. The adaptive filtering algorithm can effectively restrain the divergence problem caused by outliers. Compared to the KF algorithm, AKF algorithm can better improve the fault tolerance and precision of integrated positioning system.
Originality/value
The INS/PDR/UWB integrated system is built to track pedestrian position and attitude. Finally, an adaptive Kalman filter is used to improve the accuracy and stability of integrated positioning system.
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Keywords
Belverd E. Needles, Mark L. Frigo, Marian Powers and Anton Shigaev
Prior research shows that companies that achieve high performance excel at certain financial objectives. This chapter addresses the question: Do companies that excel at these…
Abstract
Purpose
Prior research shows that companies that achieve high performance excel at certain financial objectives. This chapter addresses the question: Do companies that excel at these financial performance objectives also excel in integrated reporting and sustainability reporting?
Methodology/approach
We compare a sample of high performance companies (HPC) with a sample of companies that purport to support integrated reporting, and a sample that purport to support sustainability reporting. Our hypotheses are that HPC will equal or exceed the integrated reporting and sustainability reporting practices shown by International Integrated Reporting Committee (IIRC) and Global Reporting Initiative (GRI) companies and US companies will be less at these practices than non-US companies.
Findings
Our findings indicate that IIRC companies and GRI companies generally do not meet the high financial performance measures of the HPC. Based on an integrated reporting and sustainability reporting matrix, we show that HPC exhibit equal performance on the practices of sustainability and integrated reporting compared to GRI companies, but both HPC and GRI are lower on these practices than IIRC companies. Also, US companies disclose less information in sustainability reports and integrated reports as compared to non-US companies. Overall, all three groups fall short of full compliance with standards of integrated reporting and sustainability reporting.
Originality/value
This chapter provides evidence as to the financial performance and the current state of integrated reporting and sustainability reporting among HPC, GRI, and IIRC companies. This chapter highlights the global need for a generally accepted set of standards for sustainability and integrated reporting practices.
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Belverd E. Needles, Marian Powers, Mark L. Frigo and Anton Shigaev
This study establishes a baseline evaluation of sustainability reporting (SR) and integrated reporting (IR) practices among groups of companies globally using a combined…
Abstract
This study establishes a baseline evaluation of sustainability reporting (SR) and integrated reporting (IR) practices among groups of companies globally using a combined evaluation matrix. We evaluate a sample of high performance companies (HPC), global reporting initiative (GRI) companies, international integrated reporting committee (IIRC) companies, and a control group of companies that do not belong to any of these groups. We test for high performance and compliance with a 30-point evaluation matrix for financial reporting, corporate governance, integrated disclosure, SR, and assurance developed from the standards set by GRI and IIRC. This chapter provides evidence as to the current IR and SR states, and shows that considerable variation exists even among companies that have pledged to improve reporting in this arena. The analysis also shows that companies that belong to no special group do in fact score on a level that shows that SR and IR standards are being implemented by many companies in the world, not just those in special groups like the HPC, GRI, and IIRC. Finally, this study provides direction for global regulators and professional associations, and to the management of companies that aspire to HPC status while meeting the IR and SR standards.
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Chaolei Ban, Shuqin Zhu, Jie Ma, Fangreng Wang, Zhengfeng Jia and Jie Wang
Ni coating was electroplated on carbon steel substrate to protect carbon steel.
Abstract
Purpose
Ni coating was electroplated on carbon steel substrate to protect carbon steel.
Design/methodology/approach
During electroplating, the ultrasonic irradiation (UI) (1 kHz) action was in situ used with different frequency. The influence of UI on the microstructure, mechanical and electrochemical performance of the coating was studied with scanning electron microscopy, X-ray diffraction, microhardness measurement, polarization curves and electrochemical impedance spectroscopy.
Findings
The results show that comparing that without UI imposition, UI during electroplating can refine the coating grain and decrease the micro-pores in the coating, resulting in improvement of the coating corrosion and hardness.
Originality/value
The imposition of UI action during electroplating Ni coating can remove intrinsic pores in the coating and compact the coating. The potential bimetallic cell between substrate and plating layer can be insulated to enhance the corrosion resistance of Ni coating. The imposition of UI action during electroplating Ni coating can refine Ni coating grain size and improve the coating haredness.
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Yu Jia, Shuang Gao, Lihua Gao, Jie Gao and Tao Wang
The motivation of value co-creation among the multi-actor in sharing economy was an important topic in interactive marketing communication research. This study investigated how…
Abstract
Purpose
The motivation of value co-creation among the multi-actor in sharing economy was an important topic in interactive marketing communication research. This study investigated how customer gratitude expression leads to value co-creation of PSPs in the sharing economy, and also investigates the moderating effect of platform benevolent climate.
Design/methodology/approach
A three-wave field survey (Study 1) and two experiments (Studies 2 and 3) were given to respondents with sharing economy practitioners.
Findings
First, customer gratitude expression positively influenced PSP's perceived meaningful work, which in turn enhanced their value co-creation intention. Second, PSP's perceived platform benevolent climate moderated the relationship between customer gratitude expression and PSP's perceived meaningful work.
Originality/value
Prior research discussed PSPs' value co-creation intention mainly from the perspective of platforms and PSPs, but few considered customer-PSP interaction perspective. This study revealed how customer gratitude expression influences PSP's value co-creation intention in highly interactive digital business context, examined the boundary condition of gratitude expression, and extended the application scenarios of social information processing theory.
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Jie He, Yan Mao, Alastair M. Morrison and J. Andres Coca-Stefaniak
This paper aims to investigate the influence of socially- responsible human resource management (SRHRM) on employee fears of external threats during the COVID-19 outbreak, based…
Abstract
Purpose
This paper aims to investigate the influence of socially- responsible human resource management (SRHRM) on employee fears of external threats during the COVID-19 outbreak, based on social support and event system theories. COVID-19 caused sharp profit declines and bankruptcies of hotels, restaurants and travel agencies. In addition, employees faced threats to their health and job security. How to overcome employee anxieties and fears about the negative impacts of this crisis and promote psychological recovery is worthy of attention from researchers and practitioners. This research investigated the impacts of SRHRM on employee fears through organizational trust, with the COVID-19 pandemic playing a moderating role between SRHRM and employee fears.
Design/methodology/approach
The hypotheses were tested through multiple linear regression analysis based on a survey of 408 employees in hospitality and tourism firms in China. Qualitative data were also gathered through interviews with selected managers.
Findings
The results showed that SRHRM had a negative influence on employee fears of external threats by enhancing trust in their organizations. In addition, the strength of the COVID-19 pandemic positively moderated the effect of SRHRM on employee fears. When the pandemic strength was more robust, the negative effects of SRHRM on employee fears were more significant.
Research limitations/implications
This research illustrated the contribution of SRHRM in overcoming employee fears of external threats in the context of COVID-19. It shed light on the organizational contribution of SRHRM to hospitality and tourism employee psychological recovery during the crisis.
Originality/value
This research explored strategic HRM by examining the effects of SRHRM on employee fears in the midst of a severe crisis, specifically COVID-19. The moderation effect of event strength and mediation effect of organizational trust were tested. It is of great value for hospitality and tourism firms to foster employee psychological recovery during a crisis such as COVID-19.
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Furong Jia and Jie Yu
Gamification is a strategic approach employed by practitioners to foster meaningful engagement and enhance the acceptance of recommendations. Gamification affordances (e.g…
Abstract
Purpose
Gamification is a strategic approach employed by practitioners to foster meaningful engagement and enhance the acceptance of recommendations. Gamification affordances (e.g. achievement, self-expression, interaction, and cooperation) catalyze significant psychological processes in consumers, leading to behavioral changes. Despite its application, a gap remains in understanding how these gamification affordances in e-commerce contexts impact customers' perceived values and drive recommendation acceptances.
Design/methodology/approach
Employing affordance theory and perceived value theory as our foundation, we have crafted a comprehensive framework that addresses the multifaceted nature of e-commerce gamification, thereby unifying the fragmented knowledge in this area. We implemented a quantitative research design to empirically test the proposed model.
Findings
The research reveals that the four principal affordances of gamification – achievement, self-expression, interaction, and cooperation – significantly enrich consumer values across hedonic, utilitarian, and social dimensions. This enrichment facilitates an increased propensity for accepting recommendations.
Originality/value
This study provides a novel lens through which to view the influence of gamification affordances on recommendation acceptance within gamified e-commerce settings. It delineates the effects of each affordance on consumers' perceived value and highlights the pivotal affordances that shape gamified e-commerce experiences. These insights yield actionable strategies for practitioners aiming to refine e-commerce gamification designs and cultivate more engaging consumer interactions.
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Minghuan Shou, Furong Jia and Jie Yu
The aging population, a higher proportion of older adults (aged 65+), is considered a global and severe problem, while the information systems (IS) literature on detecting the…
Abstract
Purpose
The aging population, a higher proportion of older adults (aged 65+), is considered a global and severe problem, while the information systems (IS) literature on detecting the relationship between the aging population and the development of electronic commerce (e-commerce) is limited and insufficient. Hence, the main objective of this paper is to examine whether an aging population can moderate the effect of infrastructure constructions on e-commerce sales and whether an aging population can affect e-commerce sales.
Design/methodology/approach
To investigate the relationship between the aging population and e-commerce sales, this study proposes two potential influential mechanisms: moderating the effects of infrastructure development on e-commerce sales and direct influence. Subsequently, a sample of 31 Chinese provinces from 2013 to 2019 is utilized to conduct regression analyses in order to examine these hypotheses.
Findings
The findings suggest that the development of urban transportation infrastructure and network constructions can significantly contribute to the enhancement of e-commerce sales, and the influence cannot be affected by aging population. Furthermore, it is noteworthy that an aging population can have a positive effect on e-commerce sales.
Practical implications
The findings can inform future infrastructure constructions by assessing the potential of infrastructure projects to boost e-commerce sales and examining whether this effect varies in an aging population context.
Originality/value
The findings substantiate the pivotal role of older adults in the e-commerce industry. Moreover, the obtained results establish a positive relationship between an aging population and e-commerce sales, thereby offering diverse perspectives on existing theories.
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Gang Liu, Fengshan Ma, Maosheng Zhang, Jie Guo and Jun Jia
Continua and discontinua coexist in natural rock materials. This paper aims to present an improved approach for addressing the mechanical response of rock masses based on the…
Abstract
Purpose
Continua and discontinua coexist in natural rock materials. This paper aims to present an improved approach for addressing the mechanical response of rock masses based on the combined finite-discrete element method (FDEM) proposed by Munjiza.
Design/methodology/approach
Several algorithms have been programmed in the new approach. The algorithms include (1) a simpler and more efficient algorithm to calculate the contact force; (2) An algorithm for tangential contact force closer to the actual physical process; (3) a plastic yielding criterion (e.g. Mohr-Coulomb) to modify the elastic stress for fitting the mechanical behavior of elastoplastic materials; and (4) a complete code for the mechanical calculation to be implemented in Matrix Laboratory (MATLAB).
Findings
Three case studies, including two standard laboratory experiments (uniaxial compression and Brazilian split test) and one engineering-scale anti-dip slop model, are presented to illustrate the feasibility of the Y-Mat code and its ability to deal with multi-scale rock mechanics problems. The results, including the progressive failure process, failure mode and trajectory of each case, are acceptable compared to other corresponding studies. It is shown that, the code is capable of modeling geotechnical and geological engineering problems.
Originality/value
This article gives an improved FDEM-based numerical calculation code. And, feasibility of the code is verified through three cases. It can effectively solve the geotechnical and geological engineering problems.
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