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1 – 10 of 557Wei Zhang, Xianghong Hua, Kegen Yu, Weining Qiu, Xin Chang, Bang Wu and Xijiang Chen
Nowadays, WiFi indoor positioning based on received signal strength (RSS) becomes a research hotspot due to its low cost and ease of deployment characteristics. To further improve…
Abstract
Purpose
Nowadays, WiFi indoor positioning based on received signal strength (RSS) becomes a research hotspot due to its low cost and ease of deployment characteristics. To further improve the performance of WiFi indoor positioning based on RSS, this paper aims to propose a novel position estimation strategy which is called radius-based domain clustering (RDC). This domain clustering technology aims to avoid the issue of access point (AP) selection.
Design/methodology/approach
The proposed positioning approach uses each individual AP of all available APs to estimate the position of target point. Then, according to circular error probable, the authors search the decision domain which has the 50 per cent of the intermediate position estimates and minimize the radius of a circle via a RDC algorithm. The final estimate of the position of target point is obtained by averaging intermediate position estimates in the decision domain.
Findings
Experiments are conducted, and comparison between the different position estimation strategies demonstrates that the new method has a better location estimation accuracy and reliability.
Research limitations/implications
Weighted k nearest neighbor approach and Naive Bayes Classifier method are two classic position estimation strategies for location determination using WiFi fingerprinting. Both of the two strategies are affected by AP selection strategies and inappropriate selection of APs may degrade positioning performance considerably.
Practical implications
The RDC positioning approach can improve the performance of WiFi indoor positioning, and the issue of AP selection and related drawbacks is avoided.
Social implications
The RSS-based effective WiFi indoor positioning system can makes up for the indoor positioning weaknesses of global navigation satellite system. Many indoor location-based services can be encouraged with the effective and low-cost positioning technology.
Originality/value
A novel position estimation strategy is introduced to avoid the AP selection problem in RSS-based WiFi indoor positioning technology, and the domain clustering technology is proposed to obtain a better accuracy and reliability.
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Yu hui Fan, Pan pan Liu, Bo Shen, Kejian Ma, Bang Wu, Tianhong Zheng and Fang Yang
The reinforced concrete open-web sandwich slab is composed of upper rib, lower rib, surface plate and shear key and was applied to long-span structure crossing at 18–30 m. The…
Abstract
Purpose
The reinforced concrete open-web sandwich slab is composed of upper rib, lower rib, surface plate and shear key and was applied to long-span structure crossing at 18–30 m. The shear-bearing capacity of shear key, having vital effects on the slab’s bearing capacity, is analysed to present its calculation formula used for the engineering application of the slab.
Design/methodology/approach
The shear-bearing capacity of shear key is analysed by the strut-and-tie model and the benchmark model established by the finite element method. Furthermore, the design formula of its shear capacity is given by the parametric analysis of FEM to adjust the result of the strut-and-tie model, using multivariate linear regression analysis of these parameters.
Findings
The calculation result of the benchmark model is compared with those of the strut-and-tie model and the standard formula, which indicates that the result of the strut-and-tie model is closer to that of the benchmark model than that of the standard formula. Moreover, the parametric analysis of the finite element model indicates that the volume–stirrup ratio of the shear key and the compression strength of the concrete have lesser effect on the shear capacity compared with the longitudinal reinforcement ratio and the shear-to-span ratio of the shear key and the relative section height of the rib.
Originality/value
The shear capacity of the shear key is provided in the paper by combining the finite element method and the strut-and-tie model, which is different from the calculation of the shear key in local codes and Chinese code, based on the theory of short corbel and the experiment of member. Furthermore, the formula of the shear capacity could be employed in the design and construction of the RC open-web sandwich slab, mainly used in the public and industrial multi-story building with long span to save the dwindling land resource currently.
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The purpose of this paper is to propose a suitable motion planning for omni‐directional mobile robots (OMRs) by taking into account the motion characteristics.
Abstract
Purpose
The purpose of this paper is to propose a suitable motion planning for omni‐directional mobile robots (OMRs) by taking into account the motion characteristics.
Design/methodology/approach
Based on the kinematic and dynamic constraints, the maximum velocity, motion stability and energy consumption of the OMR moving in different directions are analysed, and the anisotropy of the OMR is presented. In order to obtain the optimal motion, the path that the robot can take in order to avoid the obstacle safely and reach the goal in a shorter path is deduced. According to the new concept of anisotropic function, the motion direction derived from traditional artificial potential field (tAPF) is regulated.
Findings
A combination of the anisotropic function and tAPF method produces high‐speed, highly stable and efficient motion when compared to the tAPF. Simulations and experiments have proven the validity and effectiveness of this method.
Research limitations/implications
The practical factors, such as the effect of wear on the omni‐directional wheels, are not considered. Typical problems of APF, e.g. local minima, are not addressed here. In our future research, we will deal with these issues.
Practical implications
The proposed motion planning is applicable for any kind of OMRs, both three‐ and four‐wheeled OMRs, which can fully exhibit the advantages of OMRs.
Originality/value
The new concept of an anisotropic function is proposed to indicate the quality of motion in different directions. Different motion effects can be obtained in the same direction with different weights denoted by the anisotropic function, i.e. different trade‐offs can be achieved by varying the weights.
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Thea Vinnicombe and Yu Chen Wu
To date, researchers examining the motivations of volunteers at festivals and events have used a range of measurement indexes, most of which appear to have common antecedents in…
Abstract
Purpose
To date, researchers examining the motivations of volunteers at festivals and events have used a range of measurement indexes, most of which appear to have common antecedents in the psychology literature. It is not clear if different events actually require different scales, or if individual scales are more generalizable than is currently recognized so that the proliferation of scales is largely an academic exercise. The current study takes a preliminary step in exploring this issue by using an existing scale developed to measure the motivations of volunteers at western sporting events to examine the motivations of volunteers at a music festival in China.
Design/methodology/approach
The Volunteer Motivation Scale for International Sporting Events (VMS-ISE) is administered to volunteers at the Midi Music Festival in China. The 467 respondents are divided into two subgroups. Exploratory factor analysis (EFA) is applied to the first subsample to explore the factor structure of the index. Confirmatory factor analysis (CFA) is then applied to the second subsample to test the factor structure of the resolved scale.
Findings
The results of the EFA are promising, yielding a resolved factor structure, which is very close to the hypothesized index. The resolved scale is reasonably well supported by the subsequent CFA.
Originality/value
The findings suggest it may be possible for researchers to use a smaller number of scales on a larger range of festivals leading to a better understanding of similarities and differences in motivations across event volunteers. The results should also be helpful to festival organizers in their continuing efforts to recruit volunteers.
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Lin Zhang, Jintao Wu, Honghui Chen and Bang Nguyen
Drawing on the branded service encounters perspective, the purpose of this study is to investigate how frontline service employees’ environmentally irresponsible behaviors affect…
Abstract
Purpose
Drawing on the branded service encounters perspective, the purpose of this study is to investigate how frontline service employees’ environmentally irresponsible behaviors affect customers’ brand evaluations.
Design/methodology/approach
The research conducted two experiments. The first experiment explored the effect of frontline service employees’ environmentally irresponsible behaviors on customers’ brand evaluations via corporate hypocrisy. The second experiment explored the moderation effect of employees’ prototypicality and the importance of corporate social responsibility (CSR) among customers.
Findings
Experiment 1 indicates that for firms with a green brand image, frontline employees’ environmentally irresponsible behaviors result in customers’ perception that the firm is hypocritical, thus reducing their brand evaluations. Experiment 2 shows that employee prototypicality and CSR importance to the customer enhance the negative impact of frontline employees’ environmentally irresponsible behaviors on customers’ brand evaluations through customers’ perception of corporate hypocrisy.
Research limitations/implications
This study is one of the first efforts to explore how frontline service employees’ environmentally irresponsible behaviors affect customers’ responses. It helps understand the impact of frontline employees’ counter-productive sustainable behaviors on customers’ brand perception, as well as the relationship between CSR and employees.
Practical implications
This study suggests that firms’ green brand image does not always lead to positive customer response. When frontline employees’ behaviors are inconsistent with firms’ green brand image, it can trigger customers’ perceptions of corporate hypocrisy and thus influence their brand evaluations. Therefore, firms should train frontline service employees to make their behaviors align with the firms’ green brand image.
Originality/value
This study is one of the first efforts to explore how frontline service employees’ environmentally irresponsible behaviors affect customers’ responses. It helps understand the impact of frontline employees’ counter-productive sustainable behaviors on customers’ brand perception, as well as the relationship between CSR and employee.
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Cheng-Hao Steve Chen, Meng-Shan Sharon Wu, Bang Nguyen and Stacey Li
The purpose of this study is to provide insights into value creation within a newspaper consumption community, adding to current information research by demonstrating how an…
Abstract
Purpose
The purpose of this study is to provide insights into value creation within a newspaper consumption community, adding to current information research by demonstrating how an atypical consumption community can co-create value in ways different from those identified in extant research. The upheaval of the newspaper industry’s business model and value chain in the face of digitalisation has led to significant decreases in newspaper revenue. To stay successful in the modern digital climate, it is essential for newspapers to utilise the interactive features of Web 2.0 to find new value sources. To do so, it is necessary to focus not just on tangible financial value but also symbolic value. The study supports the notion that consumers collectively co-create value through consumption community practices.
Design/methodology/approach
Through the conduction of a netnographic exploration of active consumers on the Guardian website and interviews with passive consumers, the study’s aims of understanding co-creation in digitally facilitated newspaper consumption environment were achieved.
Findings
The findings have opened up new ways in which newspapers can harness value through consumption communities as well as suggesting the future scope of research. This study indicates that newspapers foster an atypical environment for the creation of a cohesive consumption community – something that has failed to be appreciated in extant information research – because their diverse content influences the formation of multiple community pools with members who do not always share the same beliefs. In addition, the study reveals that the Guardian’s online consumption community co-creates value without strict adherence to the prescribed contingencies set out in current literature. The findings uncover new patterns in community behaviour proving value to be created not just through their co-consumption but also through individual consumption.
Originality/value
This study contributes to discussions on how communities co-create value and how this differs with different article subjects (lifestyle and political and types of participants, both active and passive).
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Noriyuki Tsunogaya and Chris Patel
The paper extends the literature by examining the impact of politics, conflicts and compromises resulting from external pressures (gaiatsu, 外圧) and internal pressures (naiatsu…
Abstract
Purpose
The paper extends the literature by examining the impact of politics, conflicts and compromises resulting from external pressures (gaiatsu, 外圧) and internal pressures (naiatsu, 内圧) on the convergence and globalization of accounting and accountability in Japan.
Design/methodology/approach
Using Japan as a case study, it is examined how and why the stimulus for significant accounting reforms arises, how the government manages and reacts to the powerful forces of gaiatsu and how it balances naiatsu among key stakeholders.
Findings
The ongoing changes in accounting regulations in Japan are neither the result of an unmediated response to gaiatsu nor the outcome of naiatsu. Rather, Japanese accounting changes are the consequence of complex external interactions and internal compromises. Specifically, Japan demonstrates a repetitive pattern of conflict management, which alters the domestic power balance based on naiatsu, and forces the Japanese government to make compromises to policy changes initiated by gaiatsu.
Research limitations/implications
The findings have implications for the development of accounting and accountability, the globalized business world and international accounting research because they challenge claims made by global standards setters that international standards such as International Financial Reporting Standards are superior, are built on so-called “best practices” and are relevant to all countries.
Originality/value
Invoking the concepts of gaiatsu and naiatsu is a critical approach to understanding Japan's convergence toward economic liberalism and Anglo-American models of accounting and accountability.
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Yi Lin and Dillon Forrest
This paper aims to establish a systemic yoyo model for economic entities so that the most recent developments in systems research can be applied to the study of economics and…
Abstract
Purpose
This paper aims to establish a systemic yoyo model for economic entities so that the most recent developments in systems research can be applied to the study of economics and finance.
Design/methodology/approach
The concept and methods of whole systemic evolution are employed so that each economic entity, be it an individual, a family, a company, or any organization, can be analyzed with the help of systems research.
Findings
It is first shown that, in a market of free competition, a concept as fundamental as demand and supply is about mutual reactions and mutual restrictions of different forces under equal quantitative effects. Second, each economic entity is modelled and simulated as an economic yoyo or a flow of such yoyos. Owing to the wide applicable scope and practical significance of the Rotten Kid theorem and the excellent analysis of Bergstrom concerning the fact that this theorem is not generally true, after developing the yoyo model for various economic entities, in this paper the main result is established, a sufficient and necessary condition under which the Rotten Kid theorem holds true in general in light of whole systems evolution.
Originality/value
For the first time in history, the general structure of systems is employed to analyze topics in household economics and a long‐sought‐for sufficient and necessary condition is obtained successfully.
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This paper aims to show that systemic methods and thinking can be used to develop useful tools to address problems open in traditional science, such as Newtonian physics…
Abstract
Purpose
This paper aims to show that systemic methods and thinking can be used to develop useful tools to address problems open in traditional science, such as Newtonian physics, universal gravitation, planetary motions, and the three‐body problem.
Design/methodology/approach
Expanded on the yoyo model introduced earlier for general systems, a new figurative analysis method is introduced in this paper.
Findings
After establishing its theoretical and empirical foundations, this method is used to generalize Newton's laws of mechanics by addressing several unsettled problems in the history. Through the concept of equal quantitative effects, it is argued that this new method possesses some strength not found in pure quantitative methods. After studying the characteristics of whole evolutions of converging and diverging fluid motions, the concept of time is revisited using the new model. As further applications of the new method, one covers Kepler's laws of planetary motion, Newton's law of universal gravitation, and explains why planets travel along elliptical orbits, why no external forces are needed for systems to revolve about one another, and why binary star systems, tri‐nary star systems, and even n‐nary star systems can exist, for any natural number n≥2. By checking the study of the three‐body problem, a brand new method is provided to analyze the movement of three stars, visible or invisible. At the end, some open problems are cast for future research.
Originality/value
This paper shows for the first time in history that several well‐established laws in physics can be generalized using systemic thinking. Beyond that, an operative method of analysis is introduced to investigate problems that have been extremely difficult to handle in the scientific history. With adequate quantitative tools developed to accompany this method, it can be reasonably expected that an active systemic scientific era with a slightly different tilt from the contemporary science will follow shortly.
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Stephanie Hui-Wen Chuah, Philipp A. Rauschnabel, Malliga Marimuthu, Ramayah Thurasamy and Bang Nguyen
The purpose of this paper is to go beyond satisfaction as an indicator of customer loyalty and propose a holistic model of service switching in a mobile internet setting. The…
Abstract
Purpose
The purpose of this paper is to go beyond satisfaction as an indicator of customer loyalty and propose a holistic model of service switching in a mobile internet setting. The model, which reflects both barriers and inducements of switching, is developed based on the “mooring” and “pull” concepts in the migration literature.
Design/methodology/approach
Focusing on Generation Y mobile internet subscribers, the study analyzed a total of 417 usable questionnaire responses. Partial least squares structural equation modeling was used to test the research model.
Findings
The results show that first, satisfaction and switching barriers (i.e. a focal firm’s marketing innovation initiatives, switching costs, inertia, and local network effects) are positively related to customer loyalty; second, switching barriers have a stronger influence on customer loyalty compared with satisfaction; third, switching inducements (i.e. competitors’ marketing innovation initiatives, alternative attractiveness, variety-seeking tendencies, and consumers’ susceptibility to social reference group influence) is negatively related to customer loyalty and the relationship is weaker when perceived switching barriers are high.
Originality/value
This study empirically validates multidimensional scales of switching barriers and inducements from a more nuanced perspective, and specifies them as reflective-formative type II models. This study is among the first to use opposing dimensions to measure switching barriers and its counterpart. Hence, it illustrates how the two contrasting mechanisms can coexist in the minds of mobile internet subscribers.
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