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Article
Publication date: 13 November 2018

Han Wu, Tao Wang, Tuo Dai, Xiaoyu Wang, Yuanzhen Lin and Yizhou Wang

This paper aims to design a vision-based non-contact real-time accurate heart rate (HR) measurement framework for home nursing assistant.

Abstract

Purpose

This paper aims to design a vision-based non-contact real-time accurate heart rate (HR) measurement framework for home nursing assistant.

Design/methodology/approach

The study applied Second-Order Blind Signal Identification (SOBI) algorithm to extract remote HR signal and analyzed it with Fast Fourier Transform (FFT). Multiple regions of interest are chosen and analyzed to obtain a more accurate result.

Findings

An accurate non-contact hear rate (HR) measurement framework is proposed and proved to be efficient.

Originality/value

The contributions of this HR measurement framework are as follows: accurate measurement of HR, real-time performance, robust under various scenes such as conversation, lightweight computation which is suitable and necessary for home nursing assistance. This framework is designed to be flexibly used in various real-life scenes such as domestic health assistance and affectively intelligent agents and is proved to be robust under such scenes.

Details

International Journal of Crowd Science, vol. 2 no. 3
Type: Research Article
ISSN: 2398-7294

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Article
Publication date: 2 October 2018

Jing Sun, Jing Wang, Tao Wang and Tao Zhang

Given the recent rapid economic development, the processes of industrialization and urbanization are accelerating. At the same time, the contradiction between…

Abstract

Purpose

Given the recent rapid economic development, the processes of industrialization and urbanization are accelerating. At the same time, the contradiction between environmental quality and economic development has become increasingly prominent and is likely to restrict the normal pace of China’s economic development and environmental protection. As such, the purpose of this paper is to incorporate the urbanization factor into an analytic framework to discuss the relationship among urbanization, economic development, and environmental pollution.

Design/methodology/approach

A panel data of 31 Chinese provinces from 2004 to 2015 is selected for this research. A spatial correlation test is first conducted on the environmental pollution status, then the spatial Durbin model is used to carry out spatial econometric testing of the relationship among the above three factors.

Findings

Interprovincial environmental pollution in China has significant positive spatial correlation, environmental pollution discharge in most provinces is significantly stable, discharge of environmental pollutants is transitioning from coastal to inland provinces, and urbanization and economic growth can both aggravate environmental pollution, but economic growth can relieve environmental pollution in neighboring provinces.

Originality/value

The relationship between economic growth, urbanization, and environmental quality has always been an important issue for sustainable development. As such, China’s urbanization leads to economic development, while rapid economic growth and environmental pollution are coordinated. This paper focuses on the specific relationship between them. To this end, local governments make concerted efforts to formulate sound environmental regulation policies based on local environmental conditions, where economic development is an effective means of alleviating the contradictory relationship between economic development and environmental protection.

Details

Management of Environmental Quality: An International Journal, vol. 30 no. 2
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 7 August 2017

Jianxun Chen, Songbo liu, Yue Wang, Tao Wang and Xueqiang Zheng

Based on the team conflict theory and organizational learning theory, this study aims to discuss the two different types of conflicts of the top management team (TMT) on…

Abstract

Purpose

Based on the team conflict theory and organizational learning theory, this study aims to discuss the two different types of conflicts of the top management team (TMT) on the different mechanisms of exploratory learning behavior of firms, and, based on the perspective of CEO-TMT (CEO – chief executive officer) interface, the different moderating effects caused by different CEO leadership styles are clarified.

Design/methodology/approach

Using the sample of 193 firms’ samples with multi-source data, the authors take an empirical test of the theoretical framework.

Findings

The effect of task conflict on exploratory learning behavior was insignificant, and relationship conflict had a positive effect on exploratory learning behavior. However, when CEO’s transformational leadership level was high, or transactional leadership level was low, there existed “bathtub curve” relationship between task conflict and exploratory learning behavior, and the relationship conflict under these conditions strengthened exploratory learning behavior. When CEO’s transactional leadership level was high, or transformational leadership level was low, there existed the inverted U-shaped relationship between task conflict and exploratory learning behavior, and the relationship conflict under such conditions weakened exploratory learning behavior.

Originality/value

First, the authors challenge the assumption of linear mechanism of task conflict, trying to build the mechanism of curve hypothesis, and the nonlinear explanation might be able to integrate the inconsistent results in the existing literature. Second, according to the inconsistent results of relationship conflict in existing literature, this study takes perspective of the CEO-TMT and introduces CEO leadership behavior as a moderating variable to test the moderating effect of CEO leadership and clarifies the boundary conditions of TMT conflicts.

Details

Nankai Business Review International, vol. 8 no. 3
Type: Research Article
ISSN: 2040-8749

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Article
Publication date: 16 September 2021

Yipeng Zhu, Tao Wang and Shiqiang Zhu

This paper aims to develop a robust person tracking method for human following robots. The tracking system adopts the multimodal fusion results of millimeter wave (MMW…

Abstract

Purpose

This paper aims to develop a robust person tracking method for human following robots. The tracking system adopts the multimodal fusion results of millimeter wave (MMW) radars and monocular cameras for perception. A prototype of human following robot is developed and evaluated by using the proposed tracking system.

Design/methodology/approach

Limited by angular resolution, point clouds from MMW radars are too sparse to form features for human detection. Monocular cameras can provide semantic information for objects in view, but cannot provide spatial locations. Considering the complementarity of the two sensors, a sensor fusion algorithm based on multimodal data combination is proposed to identify and localize the target person under challenging conditions. In addition, a closed-loop controller is designed for the robot to follow the target person with expected distance.

Findings

A series of experiments under different circumstances are carried out to validate the fusion-based tracking method. Experimental results show that the average tracking errors are around 0.1 m. It is also found that the robot can handle different situations and overcome short-term interference, continually track and follow the target person.

Originality/value

This paper proposed a robust tracking system with the fusion of MMW radars and cameras. Interference such as occlusion and overlapping are well handled with the help of the velocity information from the radars. Compared to other state-of-the-art plans, the sensor fusion method is cost-effective and requires no additional tags with people. Its stable performance shows good application prospects in human following robots.

Details

Industrial Robot: the international journal of robotics research and application, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0143-991X

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Article
Publication date: 11 June 2018

Tao Wang, Xiaowei Liu, Minghui Kang and Haichao Zheng

The purpose of this paper is to examine factors affecting fundraisers’ voluntary information disclosure on crowdfunding platforms based on risk-perception theory (RPT).

Abstract

Purpose

The purpose of this paper is to examine factors affecting fundraisers’ voluntary information disclosure on crowdfunding platforms based on risk-perception theory (RPT).

Design/methodology/approach

Structural equation modeling was employed to test the hypothesized relationships using data collected from China.

Findings

The authors found that plagiarism risk and financing risk are two important variables that influence fundraisers’ voluntary information disclosure. Specifically, plagiarism risk has a negative effect on fundraisers’ voluntary information disclosure, while financing risk has a positive effect on fundraisers’ voluntary information disclosure. Plagiarism risk is affected by information concerns, perceived control, project innovativeness, and quality of alternatives, while financing risk is affected by protection policy and information norms.

Originality/value

This study enriches crowdfunding research by identifying factors influencing fundraisers’ voluntary information disclosure and contributes to RPT by applying it in a new crowdfunding context.

Details

Online Information Review, vol. 42 no. 3
Type: Research Article
ISSN: 1468-4527

Keywords

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Article
Publication date: 15 July 2020

Wenbin Gao, Weifeng Huang, Tao Wang, Ying Liu, Zhihao Wang and Yuming Wang

By modeling and analyzing the two-phase mechanical seal of the fan-shaped groove end face, which is prone to phase change, an effective method to study the flow field of…

Abstract

Purpose

By modeling and analyzing the two-phase mechanical seal of the fan-shaped groove end face, which is prone to phase change, an effective method to study the flow field of the mechanical seal when both cavitation and boiling exist simultaneously is found.

Design/methodology/approach

Based on the finite volume method, a fluid model was developed to investigate a two-phase mechanical seal. The validity of the proposed model was verified by comparing with some classical models.

Findings

By modeling and analyzing the two-phase mechanical seal of the fan-shaped groove end face, which is prone to phase change, the analysis of the gap flow field of the mechanical seal was realized when cavitation and boiling existed simultaneously.

Originality/value

Based on the model proposed for different conditions, the pressure and phase states in the shallow groove sealing gap were compared. The phase change rate between the mechanical seal faces was also investigated.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-12-2019-0537/

Details

Industrial Lubrication and Tribology, vol. 72 no. 10
Type: Research Article
ISSN: 0036-8792

Keywords

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Article
Publication date: 14 November 2016

Changsu Kim, Minghui Kang and Tao Wang

The purpose of this paper is to examine whether social networking site (SNS) communities benefit from collective knowledge and collaboration, which represent a portfolio…

Abstract

Purpose

The purpose of this paper is to examine whether social networking site (SNS) communities benefit from collective knowledge and collaboration, which represent a portfolio of knowledge transfer on SNSs.

Design/methodology/approach

A survey was conducted on a large scale through an online questionnaire. Structural equation modeling was employed to analyze data collected from 674 experienced SNS users.

Findings

The results indicate that all three exogenous variables, presented as user characteristics and integrated into SNS user characteristics, were positively related to the knowledge transfer portfolio, namely, to collective knowledge and collaboration, and these variables had significant moderating effects on SNS users’ community cohesiveness. Early SNS adoption was more likely than late SNS adoption to moderate the relationship between collective knowledge and community cohesiveness and that between collective collaboration and community cohesiveness.

Practical implications

The findings provide useful insights for SNS operators to enhance the process of collaborative knowledge transfer. They may also be used to obtain better insights into important factors that require closer attention during SNS use.

Originality/value

The present study provides a systematic analysis of SNS use by considering a new research model and investigating the effects of SNS-based knowledge transfer on user outcomes based on three major characteristics of SNS users. The results are expected to provide a major foundation for further SNS research and a better understanding of the relationships between SNS user characteristics, knowledge transfer, and community cohesiveness.

Details

Online Information Review, vol. 40 no. 7
Type: Research Article
ISSN: 1468-4527

Keywords

Content available
Article
Publication date: 18 March 2019

Zhipeng Xie, Jing Zhao and Tao Wang

The purpose of this paper is to examine the contradictory effect of coldness in advertisement and brand logo design.

Abstract

Purpose

The purpose of this paper is to examine the contradictory effect of coldness in advertisement and brand logo design.

Design/methodology/approach

The authors conduct four experiments to test the influences of coldness on consumers’ attitude. In the first two experiments, the researchers use real/virtual brand names to test the moderating effect of brand status and customer power; in Study 3, the researchers test the moderating effect of autonomy; while in the last experiment, the findings in the previous experiments are extended to explain similar effect of cold/warm brand logo designs.

Findings

This research finds that coldness also brings benefit to brands under certain circumstances. More specifically, cold endorsers/brand logo designs are only beneficial for brands of high (vs low) status, and can only attract consumers who experience high power (vs low power). Such effects are mediated by consumers’ perceived brand autonomy.

Research limitations/implications

This research urges the managers to analyze the characteristics of the brand and its target consumer. It also points out that the effectiveness of warm/cold representative derives from the customer perceived brand autonomy.

Originality/value

The authors’ contributions to the literature are as follows. First, this research examines the relationship between coldness and autonomy, which enables us to expand the findings to various contexts; second, this research expands the horizon of autonomy theory by identifying customer power and brand status as its moderators.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 31 no. 2
Type: Research Article
ISSN: 1355-5855

Keywords

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Article
Publication date: 30 May 2019

Tao Wang, Ping Li, Mingfang Wang, DanDan Yang and Chaoyu Shi

This paper proposes a design of an efficient and automated experimental platform for frequency modulated continuous wave (FMCW) radars. The platform can quickly flexibly…

Abstract

Purpose

This paper proposes a design of an efficient and automated experimental platform for frequency modulated continuous wave (FMCW) radars. The platform can quickly flexibly generate the waveform that meets measurement requirements and significantly improve experimental efficiency.

Design/methodology/approach

This platform not only includes radio frequency devices but also integrates a programmable transmitter based on field programmable gate array. By configuring the waveform data, the experimental platform can generate waveforms with adjustable parameters and realize automatic emission, reception and processing of signals. Different from traditional fast Fourier transform, this paper uses a discrete-time Fourier transform to process low-frequency signals to get more accurate results.

Findings

The authors demonstrate the effectiveness of the platform through a single-path cable experiment, an indoor ranging experiment by using different modulating waveforms and a speed measurement experiment. With complete functions and strong flexibility, the platform can operate effectively in various conditions and greatly improve the efficiency of research and study.

Practical implications

The platform can accelerate the research studies and applications of FMCW radars in the fields of automatic drive, through-wall detection and health-care applications.

Originality/value

Cost and functionality are taken into account in the platform, which can significantly improve the efficiency of research. The proposed signal processing method improves the accuracy while its computation complexity does not increase significantly.

Details

Sensor Review, vol. 39 no. 4
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 11 December 2019

Chunyan Nie and Tao Wang

The purpose of this paper is to examine the effect of the interpretation strategy of cultural mixing on consumers’ evaluations of global brands that incorporate local…

Abstract

Purpose

The purpose of this paper is to examine the effect of the interpretation strategy of cultural mixing on consumers’ evaluations of global brands that incorporate local cultural elements. Specifically, this paper examines whether a property interpretation and a relational interpretation have different influences on consumers’ evaluations of global brands that incorporate local cultural elements.

Design/methodology/approach

Two experiments were conducted as part of this research. Experiment 1 adopted a two (interpretation strategy: property interpretation vs relational interpretation) single-factor between-subjects design. Experiment 2 adopted a 2 (interpretation strategy: property interpretation vs relational interpretation) × 2 (polyculturalist beliefs: high vs low) between-subjects design. The data were analyzed using ANOVA and PROCESS 213.

Findings

A property interpretation (emphasizing that some features of a global brand transfer to local cultural elements) leads to a less favorable evaluation of global brands that incorporate local cultural elements than a relational interpretation (emphasizing a relation between global brands and local cultural elements). This effect is fully mediated by perceived cultural intrusion, and it exists only when consumers have a low level of polyculturalist beliefs.

Originality/value

This paper reveals that the phenomenon of cultural mixing occurs when global brands incorporate local cultural elements. In addition, the way that consumers perceive the relationship between global brands and local cultural elements will determine their reactions to global brands that incorporate local cultural elements.

Details

International Marketing Review, vol. 38 no. 1
Type: Research Article
ISSN: 0265-1335

Keywords

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