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1 – 10 of 62Song Weiwei, Xiaojing Xu, Dunwen Zuo and Jianli Wang
This paper aims to investigate the modification of surface of a copper alloy by friction stir surface processing (FSSP).
Abstract
Purpose
This paper aims to investigate the modification of surface of a copper alloy by friction stir surface processing (FSSP).
Design/methodology/approach
The metallographic condition of the surface modification was observed using microscopy. Electrochemical corrosion tests were carried out on the modified surface and the corroded surface was observed by scanning electron microscopy (SEM).
Findings
The test results showed that FSSP resulted in refinement of the surface grains of the copper alloy. The degree of refinement was increased with rotation speed and increased in the descending distance of the stirring tool. The corrosion resistance of the modified surface was superior to the base metal except for the surface generated by a rotation speed of 800 rpm and a descending distance 0.1 mm. For the surface modification of the rotation speed of 800 rpm, its corrosion resistance was lower than for the other two rotation speeds. When the rotation speed is specified, the corrosion resistance is improved with increased descending distance. When the descending distance is specified, the corrosion resistance is improved with the rotation speed.
Originality/value
In this study, it was confirmed that the corrosion resistance of the surface modification was best at the rotation speed 1200 rpm and descending distance 0.2 mm.
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Weiwei Wu, Zhouzhou Wang, Shuang Ding, Aiping Song and Dejia Zhu
The effects of infiltrant-related factors during post-processing on mechanical performance are fully considered for three-dimensional printing (3DP) technology. The factors…
Abstract
Purpose
The effects of infiltrant-related factors during post-processing on mechanical performance are fully considered for three-dimensional printing (3DP) technology. The factors contain infiltrant type, infiltrating means, infiltrating frequency and time interval of infiltrating.
Design/methodology/approach
A series of printing experiments are conducted and the parts are processed with different conditions by considering the above mentioned four parameters. Then the mechanical performances of the parts are tested from both macroscopic and microscopic papers. In the macroscopic view, the compressive strength of each printed part is measured by the materials testing machine – Instron 3367. In the microscopic view, scanning electron microscope and energy dispersion spectrum are used to obtain microstructure images and element content results. The pore size distributions of the parts are measured further to illustrate that if the particles are bound tightly by infiltrant. Then, partial least square (PLS) is used to conduct the analysis of the influencing factors, which can solve the small-sample problem well. The regression analysis and the influencing degree of each factor are explored further.
Findings
The experimental results show that commercial infiltrant has an outstanding performance than other super glues. The infiltrating action will own higher compressive strength than the brushing action. The higher infiltrating frequency and inconsistent infiltrating time interval will contribute to better mechanical performance. The PLS analysis shows that the most important factor is the infiltrating method. When compare the fitted value with the actual value, it is clear that when the compressive strength is higher, the fitting error will be smaller.
Practical implications
The research will have extensive applicability and practical significance for powder-based additive manufacturing.
Originality/value
The impact of the infiltrating-related post-processing on the performance of 3DP technology is easy to be ignored, which is fully taken into consideration in this paper. Both macroscopic and microscopic methods are conducted to explore, which can better explain the mechanical performance of the parts. Furthermore, as a small-sample method, PLS is used for influencing factors analysis. The variable importance in the projection index can explain the influencing degree of each parameter.
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Shabahat Ali, Weiwei Wu and Sadaqat Ali
Building upon the firm market orientation theories, this study aims to examine the individual and synergistic effects of the firm inside-out and outside-in marketing capability on…
Abstract
Purpose
Building upon the firm market orientation theories, this study aims to examine the individual and synergistic effects of the firm inside-out and outside-in marketing capability on its incremental and radical product innovation outcomes.
Design/methodology/approach
By collecting cross-sectional data from 203 manufacturing firms in Pakistan, confirmatory factor analysis in AMOS and hierarchical multiple regression analysis in SPSS are performed to validate the study measurement models and test the hypothesized relationships, respectively.
Findings
The findings of this study suggest both inside-out and outside-in marketing capability critical for incremental and radical product innovation. Specifically, inside-out marketing capability is found positively associated with incremental product innovation and non-linearly (inverted U-shaped) associated with radical product innovation. Conversely, outside-in marketing capability is found positively associated with radical product innovation but non-linearly (inverted U-shaped) associated with incremental product innovation. However, the results indorse that developing synergy between the inside-out and outside-in marketing capability positively impacts both incremental and radical product innovation.
Originality/value
Drawing from the firm inside-out and outside-in market orientation theories, the study extends the existing research on product innovation outcomes from the marketing capabilities perspective. Previous literature highly recognized the value of the firm market orientation and being market-driven in market-based product innovations. However, there was a lack of understanding of how the firm marketing capabilities facilitate incremental and radical product innovation. This study provides a novel understanding of the firm inside-out and outside-in marketing capability role in inducing incremental and radical product innovation which enrich and extend the current literature on firm capabilities and product innovations from a marketing perspective.
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Weiwei Yan, Shengli Deng and Yin Zhang
This study aims to examine the factors influencing the adoption intention of information service mashup in digital library (DL). The study is an empirical study on DLs in China.
Abstract
Purpose
This study aims to examine the factors influencing the adoption intention of information service mashup in digital library (DL). The study is an empirical study on DLs in China.
Design/methodology/approach
This paper employs the theory of information service mashup as its theoretical background and applies it to the field of DL to develop the measurement model which is based on technology acceptance model (TAM). A structured questionnaire was developed including the demographic information, the advantages of information service mashup in DL and the Likert evaluation of each construct. As a result, of 303 questionnaires distributed among DL users, 281 were remained as acceptable answers. The data were processed and analyzed with the aid of the SPSS 20.0 and SmartPLS 2.0.
Findings
The results show that beyond perceived usefulness and perceived ease of use, both perceived integration and perceived risk have direct impacts on user’s intention to adopt information service mashup in DL. Perceived integration has the dramatic positive effects, while perceived risk negatively correlates to adoption intention. Moreover, perceived integration and individualization have positive impacts on perceived ease of use, while network externality positively influences perceived usefulness.
Originality/value
Information service mashup is still a relatively new technology in DL. There were few theoretical and empirical studies that examine the user adoption behaviour of the service. This study contributes to existing information service mashup application studies by modifying and extending TAM. The results would help the DL gain a deeper understanding of the factors affecting DL user adoption of information service mashup.
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Weiwei Wu, Yexin Liu, Yanggi Kim and Pengbin Gao
This study aims to offer insights regarding the impact of emotional conflict on innovation behavior. This study also explores the boundary conditions by examining the moderating…
Abstract
Purpose
This study aims to offer insights regarding the impact of emotional conflict on innovation behavior. This study also explores the boundary conditions by examining the moderating effects of leader-member exchange (LMX) and team-member exchange (TMX) on the relationship between emotional conflict and innovation behavior.
Design/methodology/approach
This study used a questionnaire survey to collect data in China. Hypotheses were tested using hierarchical regression analysis. To test for inverted U-shaped relationship between emotional conflict and innovation behavior, the authors computed the squared term for emotional conflict. To investigate moderating roles of LMX and TMX, the authors carried out an interaction term between the main effect variables (emotional conflict and emotional conflict2) and the moderating variables (LMX and TMX).
Findings
The empirical findings indicated that emotional conflict had an inverted U-shaped relationship with innovation behavior. Furthermore, LMX and TMX moderated the inverted U-shaped relationship between the emotional conflict and innovation behavior in such a way that the inverted U-shaped relationship was flatter in high-quality LMX and TMX than in low-quality LMX and TMX. That is to say, LMX and TMX may dampen the positive effects of lower levels of emotional conflict on innovation behavior; yet, it may also weaken the negative effects of higher levels of emotional conflict on innovation behavior.
Research limitations/implications
This research can be extended in several ways. First, future research can investigate the impact mechanism of emotional conflict on innovation behavior. Second, future research can analyze other types of moderators at different levels. The last but not the least, future research can test the results using heterogeneous samples. Despite these potential limitations, this study provides an elaborate understanding of the conflict–creativity relationship by outlining the inverted U-shaped relationship between emotional conflict and innovation behavior under the LMX and TMX contexts, which can make important contributions to the conflict management literature.
Practical implications
The findings of this study offer some guidance on how to stimulate innovation behavior through emotional conflict. It suggests that managers should maintain the emotional conflict at the moderate level. Furthermore, managers can strengthen the LMX and TMX to avoid the negative effects of high levels of emotional conflict, and several practices are provided as well.
Originality/value
This study develops an exhaustive understanding of the conflict–creativity relationship by figuring the curvilinear relationship between emotional conflict and innovation behavior, which is the response to the call of Posthuma to focus on the outcomes of conflict management. The findings further provide an empirical evidence of the conceptual argument that the consequences of conflict depend on the situational context by pointing out the important contingency factors of LMX and TMX.
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Chenghao Men, Weiwei Huo and Jing Wang
Despite workplace cheating behavior is common and costly, little research has explored its antecedents from customers' perspective. The current study aims to investigate the…
Abstract
Purpose
Despite workplace cheating behavior is common and costly, little research has explored its antecedents from customers' perspective. The current study aims to investigate the indirect mechanisms between customer mistreatment and cheating behavior, and exam the moderated role of traditionality.
Design/methodology/approach
Drawing on conservation of resources theory, the authors examine how customer mistreatment affects workplace cheating behavior. They test their hypotheses using a time-lagged field study of 183 employees.
Findings
The results show that customer mistreatment is positively related to interpersonal conflict with customers, which positively affects workplace cheating behavior. Traditionality moderates the indirect effect of customer mistreatment on workplace cheating behavior.
Originality/value
This study calls for researchers' attention to exploring the antecedents of workplace cheating behavior from customers' perspective, and first provides empirical evidence on the relationship between customer mistreatment and workplace cheating behavior, which has never been examined.
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With the rapid advancement of artificial intelligence (AI) technology permeating various sectors, corporate management has increasingly directed their focus toward AI-driven…
Abstract
Purpose
With the rapid advancement of artificial intelligence (AI) technology permeating various sectors, corporate management has increasingly directed their focus toward AI-driven innovation. Particularly, in response to escalating environmental standards, chief executive officers (CEOs) of manufacturing companies are turning to AI as a strategic tool to address challenges in green innovation. This paper aims to reveal the complex relationship between CEO AI orientation and green innovation through the attention-based view. Furthermore, it seeks to explore strategies to enhance corporate green innovation leveraging CEO AI orientation.
Design/methodology/approach
The paper uses computer-assisted text analysis to extract data from annual reports of listed Chinese manufacturing companies and assesses them using negative binomial regression.
Findings
The empirical findings indicate the inverted U-shaped relationship between CEO orientation and green innovation. Initial green innovation performance increases with CEO AI orientation, reaching a peak before declining. Moreover, as CEO AI orientation increases, companies with higher levels of human resource slack are likely to reach the peak of green innovation earlier.
Originality/value
Firstly, this paper introduces CEO AI orientation as a novel factor within the framework of the attention-based view for understanding green innovation. Secondly, the study investigates both the benefit effect and the cost effect (resource constraints) of CEO AI orientation on green innovation, examining the inverted U-shaped relationship between CEO orientation and green innovation. Thirdly, this paper explores the moderating effect of human resource slack on the relationship between CEO AI orientation and green innovation, setting the boundaries of CEO AI orientation’s impact on green innovation.
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Weiwei Wu, Zhou Liang and Qi Zhang
Nowadays, faced with increasingly dynamic and fierce competition, knowledge is considered to be the core to survive and maintain competitive advantages in both managerial…
Abstract
Purpose
Nowadays, faced with increasingly dynamic and fierce competition, knowledge is considered to be the core to survive and maintain competitive advantages in both managerial practices and academia. Against this background, this study analyzed the influence of technological capabilities (TC) and technology management (TM) on corporate economic performance in the contexts of corporate internal governance mechanisms and external institutional environment from the institutional perspective.
Design/methodology/approach
This study collected data on Chinese publicly listed manufacturing firms in Shenzhen and Shanghai stock markets from 2008 to 2017 and the final data included 3,679 firm-year observations. Ordinary least square regression was used in both regression analysis and robustness tests.
Findings
The empirical results showed that the interaction between TC and TM was positively related to corporate economic performance and both corporate incentives and monitoring mechanisms strengthened this positive relationship; the positive moderating effects of corporate governance were stronger under a more developed corporate external institutional environment.
Originality/value
This research provides a better understanding of the economic effect of TC and TM from the perspective of knowledge integration by indicating that the interaction between TC and TM can enhance corporate economic performance and delimiting the boundaries of this relationship from the institutional perspective.
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Jianjun Yuan, Yingjie Qian, Liming Gao, Zhaohan Yuan and Weiwei Wan
This paper aims to purpose an improved sensorless position-based force controller in gravitational direction for applications including polishing, milling and deburring.
Abstract
Purpose
This paper aims to purpose an improved sensorless position-based force controller in gravitational direction for applications including polishing, milling and deburring.
Design/methodology/approach
The first issue is the external force/torque estimation at end-effector. By using motor’s current information and Moore-Penrose generalized inverse matrix, it can be derived from the external torques of every joints for nonsingular cases. The second issue is the force control strategy which is based on position-based impedance control model. Two novel improvements were made to achieve a better performance. One is combination of impedance control and explicit force control. The other one is the real-time prediction of the surface’s shape allowing the controller adaptive to arbitrary surfaces.
Findings
The result of validation experiments indicates that the estimation of external force and prediction of surface’s shape are credible, and the position-based constant contact force controller in gravitational direction is functional. The accuracy of force tracking is adequate for targeted applications such as polishing, deburring and milling.
Originality/value
The value of this paper lies in three aspects which are sensorless external force estimation, the combination of impedance control and explicit force control and the independence of surface shape information achieved by real-time surface prediction.
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