Qinxiang Xia, Xinjian Ming, Jinchuan Long and Xiujuan Liu
The purpose of this paper is to design the whole structure of high-speed automatic casing system (HSACS) for lithium-ion battery (LIB), and verify its rationality and reliability…
Abstract
Purpose
The purpose of this paper is to design the whole structure of high-speed automatic casing system (HSACS) for lithium-ion battery (LIB), and verify its rationality and reliability by kinematic simulation and casing test.
Design/methodology/approach
Based on the software of SolidWorks and ADAMS, the structure of working mechanisms for HSACS was designed, and virtual prototype models of HSACS and main turntable were established to realize the kinematic analysis. The HSACS casing test was also carried out and compared with simulation.
Findings
Simulation results for the designed HSACS were presented graphically and analyzed. The graphical results indicate that the coordination motions among the working mechanisms of HSACS are reasonable and no interference occurs. Casing test results show that the casing quality and production efficiency of HSACS equipment are satisfying.
Originality/value
In the present work, the developed virtual prototype models of HSACS provide reliable kinematic analysis results for the structural design of HSACS, and reasonable motion relations are realized in the designed structure of HSACS. Furthermore, not only the casing quality requirements can be met, but also the production efficiency of high-speed automatic casing machine for LIB is greatly improved via this kind of new HSACS structure.
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Keywords
Xian Zheng, Jinchuan Huang and Ziqing Yuan
This study investigates whether and how place-based industrial relocation policy affects firm innovation.
Abstract
Purpose
This study investigates whether and how place-based industrial relocation policy affects firm innovation.
Design/methodology/approach
By exploiting the establishment of China's National Industrial Relocation Demonstration Zones (NIRDZs) as a quasi-natural experiment in a difference-in-differences design, the authors examine the externalities of industrial policies that support sustainable development and growth from the perspectives of firms' patenting activities.
Findings
The study consistently finds that the NIRDZs policy significantly boosts local firm innovation, translating into a 60.46% increase in the patent applications of treated firms. The estimation results remain robust to a series of alternative specifications. Moreover, heterogeneity analysis suggests that the firms that benefited most were state-owned enterprises, firms with higher productivity, or firms in non-high-tech industries. Further, the authors find that the NIRDZs policy stimulates firm innovation mainly in the form of utility model patents, followed by designs and invention patents.
Research limitations/implications
The results provide suggestions and implications for policymakers to improve the efficiency of state-led industrial policies and avoid “government failure” in policy implementation.
Social implications
This study provides suggestions and implications for policymakers to improve the efficiency of state-led industrial policies and avoid “government failure” in the policy implementation.
Originality/value
This study fills the research gap by exploiting quasi-experiments to assess the effectiveness of state-led industrial policies for emerging economies. (2) The analysis sheds empirical light on how corporate innovation is motivated and financed by selective and functional industrial policies. (3) Theoretically, the results rationalize why state-led industrial relocation fuel innovation capabilities of localities from Marshall externalities and competition crowding-out effects.
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In the past 70 years since the founding of the People’s Republic of China, China’s economic studies have been constantly centered on major issues such as national modernization…
Abstract
Purpose
In the past 70 years since the founding of the People’s Republic of China, China’s economic studies have been constantly centered on major issues such as national modernization, social economic development and the establishment, reform and improvement of socialist economic system. The paper aims to discuss this issue.
Design/methodology/approach
It has experienced a process of transition from the establishment of traditional Soviet’s paradigm of political economics to that of modern economics, during which drastic changes have been observed in various aspects of China’s economics, including research content, scope and methods.
Findings
Based on that, a discipline system of economics in line with international economics has been initially established. Currently, under the guidance of Marxism, scholars in China’s economics actively draw on the beneficial knowledge system and analytical methods from modern economics, emancipate their minds, seek truth from facts and constantly fortify confidence in the socialist path, theory, system and culture, continuously enhance the discourse power of China’s economics in global economic governance system, so as to push forward to the building of a theoretical system of socialist economics with Chinese Characteristics in the new era.
Originality/value
Economics is a discipline that studies resource allocation and human’s behavior of making a choice based on rationality. Emerged in the industrial revolution and developed in the exploration of a large-scale socialized mode of production and resource allocation system, this discipline has gradually become a broadly explanatory force in social sciences which profoundly affects the economic decision-making behaviors of the government and various economic entities.
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Prospects for consolidation in the mining sector.
Details
DOI: 10.1108/OXAN-DB210151
ISSN: 2633-304X
Keywords
Geographic
Topical
Copper market.
Details
DOI: 10.1108/OXAN-DB205473
ISSN: 2633-304X
Keywords
Geographic
Topical
The platinum industry faces an uncertain future.
Details
DOI: 10.1108/OXAN-DB207414
ISSN: 2633-304X
Keywords
Geographic
Topical
Peng Dong, Shengdun Zhao, Shuqin Fan, Muzhi Zhu and Peng Zhang
The drive shaft and the distribution shaft of a traditional radial piston pump are in a cantilever state. To solve this problem, this paper aims to present a radial piston pump…
Abstract
Purpose
The drive shaft and the distribution shaft of a traditional radial piston pump are in a cantilever state. To solve this problem, this paper aims to present a radial piston pump with through shaft driving and valve plate distribution.
Design/methodology/approach
The working principle of the pump is discussed in detail. In this radial piston pump, valve plate distribution parts are designed to distribute oil to the piston chambers, and the distribution shaft is replaced. A bearing is installed between the stator and rotator to reduce the friction. The transmission shaft is supported by two bearings to ensure smooth operation. The support force of the transmission shaft is optimized. In addition, the flow pulsation principle is presented. To accomplish the change, the displacement of the radial piston pump, the proportional control system is designed.
Findings
After completing the machining and assembly of the pump, an experimental study was carried out. The results show that the output flow of the pump is basically the same as the theoretical flow.
Originality/value
The friction between the slipping shoes and the stator is greatly reduced due to the function of rolling bearings. The higher stability of the driveshaft is obtained for the reason of double-sided support. The radial piston pump has a novel structural design in reducing the friction between the shoes and the stator and improving the stability of the transmission shaft.
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Keywords
Russia supplies close to 20% of the supply of Class 1 nickel which is used for batteries. By March 8, the nickel price spiked to USD100,000 per tonne, partly due to some covering…
Details
DOI: 10.1108/OXAN-DB268060
ISSN: 2633-304X
Keywords
Geographic
Topical
Obby Phiri, Elisavet Mantzari and Pauline Gleadle
The purpose of this paper is to critically explore the interactions of key stakeholders and their impact upon corporate social responsibility (CSR) practices in the Zambian copper…
Abstract
Purpose
The purpose of this paper is to critically explore the interactions of key stakeholders and their impact upon corporate social responsibility (CSR) practices in the Zambian copper mining sector. In particular, the authors examine the power dynamics that emerge in the stakeholder interactions.
Design/methodology/approach
The authors analyse the stakeholder interactions based on the varying degrees of stakeholder salience and critical collaboration potential, and draw on rich evidence from 43 interviews with multiple stakeholders involved in CSR in the Zambia mining sector.
Findings
This paper finds stark power asymmetries in the relationship between the state, the civil society and mining companies which are exacerbated by a number of factors, including divisions within these key stakeholders themselves. Apart from power imbalances within and between stakeholders, the potential for critical collaboration at the local level is further challenged by the lack of commonly accepted social and environmental frameworks, transparency and accountability of the leadership of stakeholder groups. However, despite these power asymmetries some limited agency is possible, as civil society in particular co-opts previously dormant stakeholders to increase its own salience and, more importantly, that of the state.
Originality/value
This paper contributes to the literature on the key stakeholders’ interactions shaping CSR in developing countries by exploring these issues in a critical industry, the Zambian copper mining sector, on which the state economy is so heavily dependent.