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1 – 5 of 5Yangyang Dong, Tongle Zhang, Shaojie Han, Yipan Guo, Bo Zeng, Yongbin Wang and Zijian Zhang
Spherical robot plays an essential role in the field of mobile robot because of its unique shape and omni-directional mobility, especially in the application of planet detection…
Abstract
Purpose
Spherical robot plays an essential role in the field of mobile robot because of its unique shape and omni-directional mobility, especially in the application of planet detection. Although spherical robot has many advantages over leg robot, its obstacle climbing performance is still not satisfactory, that is exactly the motivation of this paper. The purpose of this paper is to propose a high-performance hopping mechanism for spherical robot, which can adapt to different terrain and effectively cross obstacles.
Design/methodology/approach
The hopping system uses torque spring as part of the energy storage mechanism, and converts the kinetic energy of rotation into elastic potential energy with a particularly designed turntable. Moreover, the track of the turntable, based on the Archimedes spiral principle, has the attributes of equidistance and equivelocity that enable better stability of energy storage process.
Findings
Experiments show that the proposed hopping mechanism can make a 250 g spherical robot jump up to 58 cm with the take-off angle of 60°. Finally, the influence of friction and take-off angle on the hopping height and distance of the robot is also analyzed, which provides a prior guidance for optimizing its jumping process.
Originality/value
This paper shows how to easily design a lightweight, compact and embedded spring hopping structure so that a spherical hopping robot with detection ability can be developed.
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Keywords
Shaojie Han, Yibo Lyu, Ruonan Ji, Yuqing Zhu, Jingqin Su and Lining Bao
This study aims at developing a better understanding of the relationship between network embeddedness and incremental innovation capability and further examines the moderating…
Abstract
Purpose
This study aims at developing a better understanding of the relationship between network embeddedness and incremental innovation capability and further examines the moderating effect of open innovation.
Design/methodology/approach
This paper adopts hierarchical regressions to validate the theoretical model and collect the patent data of the top 54 firm patentees in the smartphone industry as empirical sample. Using patent citation network data, this paper estimates the relationship between open innovation, network embeddedness and incremental innovation capability.
Findings
This paper empirically shows that structural embeddedness exerts a negative effect on incremental innovation capability, while relational embeddedness is positively related to incremental innovation capability. And open innovation strengthens the relationship between network embeddedness and incremental innovation capability.
Originality/value
This paper shifts the focus of the determinants of incremental innovation capability from internal factors to the external network features by exploring the linkage between network embeddedness and incremental innovation capability. A counterintuitive conclusion is that structural embeddedness shows a negative effect on firm's incremental innovation capability. Furthermore, in contrast to most previous studies, which only focus on the direct effect of open innovation on the firm's incremental innovation capability, our study examines the moderating effect of open innovation on the relationships between network embeddedness and incremental innovation capability. At last, the results provide practical guidance for firms to occupy the beneficial network positions and adopt appropriate open innovation strategies to improve their incremental innovation capability.
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Abbas Rafiei, Peyman Akhavan and Saeed Hayati
The present paper aims to identify factors and variables affecting designing and assimilating technology in knowledge-based centers and aerospace industries, to study their…
Abstract
Purpose
The present paper aims to identify factors and variables affecting designing and assimilating technology in knowledge-based centers and aerospace industries, to study their relations and, ultimately, to provide a model based on research data.
Design/methodology/approach
Structural equation modeling (SEM) using AMOS software was used to study the relations among latent variables. Initially, the right structure of devised measure is assured and, then, by introducing a concept called “invariance”, it is shown that the devised measure structure in both aerospace industries and knowledge-based centers measures the same traits. Finally, the relations among latent variables in both knowledge-based centers and aerospace industries are studied and compared through SEM.
Findings
Findings indicate that there is a significant and positive relationship between knowledge management and successful technology transfer effectiveness. Further relational and organizational capabilities as key factors and facilitators play a mediating role between knowledge management and technology transfer effectiveness.
Practical implications
According to the direct impact of knowledge management on successful technology transfer, it is appropriate that domestic managers in research centers and aerospace industries pay more attention to technology transfer and pave the ground for executing its processes and mechanisms.
Originality/value
In the model provided in the theoretical literature, the sequence of technology transfer is addressed more, while the capabilities of technology sender (university), technology receptor (industry), knowledge management and its influence role in technology transfer from university to industry are not considered.
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Weiwei Liu, Jingyi Yao and Kexin Bi
Nuclear power is a stable and reliable energy source that can improve energy structure while reducing carbon emissions, which is of great significance for environmental protection…
Abstract
Purpose
Nuclear power is a stable and reliable energy source that can improve energy structure while reducing carbon emissions, which is of great significance for environmental protection and combating climate change. As a unique industry, it is facing rare development opportunities in China and has broad market prospects. However, the characteristics of technical difficulty, loose organizational structure and uneven regional distribution limit the expansion of the nuclear power industry. This paper aims to a better understanding of the accumulation process for innovation capability from the perspective of network evolution and provides policy guidance for the market development of the nuclear power industry (NPI).
Design/methodology/approach
Methodologically, social network analysis is used to explore the co-evolution of multidimensional collaboration networks. First, the development and policy evolution of the NPI is introduced to divide the evolution periods. Then, the authors identify and analyze the core organizations, technologies and regions that promote nuclear power patent collaboration. Furthermore, three levels of collaboration networks based on organizations, technologies and regions are constructed to analyze the coevolution of patent networks in China’s NPI.
Findings
The results show that nuclear power enterprises always play the foremost role in the organizational collaboration network (OCN), and the dominance of foreign enterprises is replaced by Chinese state-owned enterprises in the third period. The technology hotspot has shifted from nuclear power plant construction to the control system. The regional collaboration network was initially formed in the coastal areas and gradually moved inland, with Guangdong and Beijing becoming the two cores of the network. The scale of three collaboration networks is still expanding but the speed has slowed down.
Originality/value
In response to the pain points of the NPI, this research focuses on multidimensional collaborative innovation, investigates the dynamic evolution process of collaborative innovation networks in China’s NPI and links policy evolution with network evolution creatively. The ultimate result not only helps nuclear power enterprises integrate innovative resources in complex environments but also promotes industrial upgrading and market development.
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