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Article
Publication date: 11 December 2019

Yang Yang, Zhongqiu Li, Yingying Su and Xue Zhang

The purpose of this paper is to analyze why and when the future work self affects employee creativity.

Abstract

Purpose

The purpose of this paper is to analyze why and when the future work self affects employee creativity.

Design/methodology/approach

Survey data were collected from 171 supervisor–employee dyads in four Chinese enterprises.

Findings

The results indicate that the future work self has a positive effect on employee creativity. Further, thriving at work mediates the links between the future work self and employee creativity. The authors also theorize that overall fairness moderates the positive effects of the future work self on thriving at work and employee creativity.

Originality/value

The study supports the self-determination perspective regarding the future work self and strengthens the application of this perspective in an effort to understand the relationship between the future work self and employee creativity.

Details

International Journal of Manpower, vol. 41 no. 3
Type: Research Article
ISSN: 0143-7720

Keywords

Article
Publication date: 8 July 2022

Zhongqiu Li, Chao Ma, Xue Zhang and Qiming Guo

Meaningful feedback at work signals effective performance management. Drawing on a new perspective of the conservation of resources (COR) theory, this paper aims to examine the…

Abstract

Purpose

Meaningful feedback at work signals effective performance management. Drawing on a new perspective of the conservation of resources (COR) theory, this paper aims to examine the mediating effect of relational energy in the relationship between supervisor developmental feedback and subordinates' task performance with the moderating role of learning demands.

Design/methodology/approach

Data from 230 supervisor-subordinate dyads were collected at two time points of four enterprises in China.

Findings

The results support the proposed mediation effect that supervisor developmental feedback positively predicts subordinates' task performance via boosting subordinates' relational energy. Furthermore, the results highlighted the moderating role of learning demands in the relationship between supervisor developmental feedback and subordinates' relational energy. The moderated–mediated relationship for subordinates' task performance was also supported.

Originality/value

Drawing on COR theory, this paper contributes to a complete understanding of how supervisor developmental feedback may support or build employees' relational energy, facilitating task performance and further exploring learning demands as a boundary condition of this indirect relationship.

Details

Personnel Review, vol. 52 no. 5
Type: Research Article
ISSN: 0048-3486

Keywords

Article
Publication date: 13 October 2020

Xue Zhang, Guyang Tian, Chao Ma, Yezhuang Tian, Zhongqiu Li and Liang Liang

Grounded in social exchange theory (SET), the purpose of this paper is to examine the relationship between empowering leadership and unethical pro-organizational behavior (UPB)…

1665

Abstract

Purpose

Grounded in social exchange theory (SET), the purpose of this paper is to examine the relationship between empowering leadership and unethical pro-organizational behavior (UPB), as mediated by duty orientation (including duty to members, duty to mission and duty to codes). Further, this study proposes that perceived leader expediency moderates indirectly between empowering leadership and UPB.

Design/methodology/approach

This paper tests this social exchange model across a survey study using time-lagged data collections from 215 employees of a service company in China.

Findings

The results show that duty orientation mediates the relationship between empowering leadership and UPB. In addition, perceived leader expediency moderates the indirect relationship between empowering leadership and UPB through duty orientation (i.e. duty to members and duty to missions).

Originality/value

This research aids in understanding the impact of empowering leadership on follower outcomes by investigating the dark side of empowering leadership and examining the relationships between empowering leadership, duty orientation and UPB. The present study also challenges the notion that the phrase “the greater the empowerment, the better the outcomes” suggests that organizations should offer a conditional approach to the empowerment of followers by their leaders.

Details

Leadership & Organization Development Journal, vol. 42 no. 1
Type: Research Article
ISSN: 0143-7739

Keywords

Article
Publication date: 19 June 2017

Xuehai Guo, Guofeng Pan, Xin Ma, Xiangzhou Li, Ping He, Zhongqiu Hua and Haiqing Li

The purpose of this research is to synthesize Al2O3-ZnO thick films, study the effect of doping and optical excitation on their sensing properties and introduce an attractive…

Abstract

Purpose

The purpose of this research is to synthesize Al2O3-ZnO thick films, study the effect of doping and optical excitation on their sensing properties and introduce an attractive candidate for acetone detection in practice.

Design/methodology/approach

ZnO nanoparticles doped with Al2O3 were prepared by sol-gel method and characterized via X-ray diffraction and field-emission scanning electron microscopy. The sensing properties to acetone were investigated with an irradiation of UV. The sensing mechanism was also discussed with UV-Vis spectroscopy.

Findings

The doping of Al2O3 promoted the sensing response and stability of ZnO nanoparticles. The optimum performance was obtained by 4.96 Wt.% Al2O3-ZnO. The response to acetone (1,000 ppm) was significantly increased to 241.81, even just at an operating temperature of 64°C. It was also demonstrated that optical excitation with UV irradiation greatly enhanced the sensing response and the sensitivity can reach up to 305.14.

Practical implications

The sensor fabricated from 4.96 Wt.% Al2O3-ZnO exhibited excellent acetone-sensing characteristics. It is promising to be applied in low power and miniature acetone gas sensors.

Originality/value

In the present research, the optimum performance was obtained by 4.96 Wt.% Al2O3-ZnO at a low operating temperature of 64°C. The sensing properties were enhanced significantly with optical excitation, and the sensing mechanism was discussed with UV-Vis spectroscopy which has been reported rarely before.

Details

Sensor Review, vol. 37 no. 3
Type: Research Article
ISSN: 0260-2288

Keywords

Article
Publication date: 7 September 2015

Bruce Jianhe Liu, Yubin Wang, Jingjing Wang, Xin Wu and Shu Zhang

The purpose of this paper is to examine whether China is still a passive price taker from the US soybean futures, or instead domestic futures market has developed certain degrees…

Abstract

Purpose

The purpose of this paper is to examine whether China is still a passive price taker from the US soybean futures, or instead domestic futures market has developed certain degrees of pricing power through time. The finding helps to identify the importance of China soybean futures in the perspective of portfolio selection for international futures traders. If China soybean futures market is no longer a price taker after the subprime crisis, traders need to include it as a separate category in their portfolio.

Design/methodology/approach

This paper uses exponential generalized autoregressive conditional heteroskedasticity-generalized error distribution (EGARCH-GED) and generalized autoregressive conditional heteroskedasticity-generalized error distribution (GARCH-GED) models to test spillover effects between Dalian Commodity Exchange (DCE) and Chicago Board of Trade (CBOT) soybean futures. The authors divide daily samples into three subperiods based on the subprime crisis. Three research questions – whether China is still the price taker, the importance of Chinese soybean futures in international futures portfolio selection, and the influences of subprime crisis on soybean futures volatility relationship – are examined by comparing estimation results through time and different contracts.

Findings

The spillover effect from CBOT soybean futures to DCE No. 1 soybean futures becomes weaker through time. China is no longer a soybean futures price taker after the subprime crisis. The authors also find the shocks of bearish news on DCE soybeans are greater than those of bullish news. Potential volatility of DCE in long positions is bigger than that in short positions.

Practical implications

China is the largest soybean importer. DCE is a very important futures market for non-genetically modified soybeans. It is necessary for both international and domestic futures traders to understand the changes in international soybean futures price relationship and take corresponding strategies. It is also important for market to realize that DCE soybean futures are to a less degree price taker after the subprime crisis.

Originality/value

The paper applies EGARCH-GED and GARCH-GED models to identify changes in spillover effects before, during, and after the subprime crisis. Different from other studies, this paper finds after the subprime crisis, China is no longer the soybean futures price taker. This paper also compares the spillover effects of non-genetically modified soybean futures (No. 1 soybean futures) with genetically modified soybean futures (No. 2 soybean futures).

Details

China Agricultural Economic Review, vol. 7 no. 3
Type: Research Article
ISSN: 1756-137X

Keywords

Article
Publication date: 17 June 2024

Ming Zhang, Lei Hou, Huaichao Guo, Hongyu Li, Feng Sun and Lijin Fang

This study aims to improve the robot’s performance during interactions with human and uncertain environments.

Abstract

Purpose

This study aims to improve the robot’s performance during interactions with human and uncertain environments.

Design/methodology/approach

A joint stiffness model was established according to the molecular current method and the virtual displacement method. The position and stiffness coordination controller and fuzzy adaptive controller of variable stiffness joint are designed, and the principle prototype of variable stiffness joint is built. The position step and trajectory tracking performance of the variable stiffness joint are verified through experiments.

Findings

Experimental test shows that the joint stiffness can be quickly adjusted. The accuracy of position and trajectory tracking of the joint increases with higher stiffness and decreases with increasing frequency. The fuzzy adaptive controller performed better than the position and stiffness coordination controller in controlling the position step and trajectory tracking of the variable stiffness joint.

Originality/value

A hybrid flux adjustment mechanism is proposed for the components of variable stiffness robot joints, which reduces the mass of the output end of variable stiffness joints and the speed of joint stiffness adjustment. Aiming at the change of system controller performance caused by the change of joint stiffness, a fuzzy adaptive controller is proposed to improve the position step and trajectory tracking characteristics of variable stiffness joints.

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

Keywords

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