Search results

1 – 4 of 4
Article
Publication date: 4 May 2020

Song Xiao, Yuanpei Luo, Jingchi Wu, Can Zhang, Yang Rao, Guangning Wu and Jan Sykulski

In high-speed trains, the energy is supplied from a high voltage catenary to the vehicle via a pantograph catenary system (PCS). Carbon pantograph strips must maintain continuous…

Abstract

Purpose

In high-speed trains, the energy is supplied from a high voltage catenary to the vehicle via a pantograph catenary system (PCS). Carbon pantograph strips must maintain continuous contact with the wire to ensure safety and reliability. The contact is often confined to a particular spot, resulting in excessive wear due to mechanical and thermal damage, exacerbated by the presence of an electric arc and associated electrochemical corrosion. The effectiveness and reliability of the PCS impacts on the performance and safety of HSTs, especially under high-speed conditions. To alleviate some of these adverse effects, this paper aims to propose a configuration where a circular PCS replaces the currently used pantograph strips.

Design/methodology/approach

Two dynamic multi-physics models of a traditional PCS with a carbon strip and a novel PCS with a circular pantograph strip catenary system are established, and the electrical and mechanical characteristics of these two systems are compared. Moreover, a PCS experimental platform is designed to verify the validity and accuracy of the multi-physics model.

Findings

A novel circular pantograph system is proposed in this paper to alleviate some of the shortcomings of the traditional PCS. Comparing with a traditional PCS, the circular PCS exhibits superior performance in both electromagnetic and thermal aspects.

Originality/value

The paper offers a new technical solution to the PCS and develops a dedicated multi-physics model for analysis and performance prediction with the aim to improve the performance of the PCS. The new system offers numerous benefits, such as less friction heat, better heat dispersion and improved catenary-tracking performance.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 40 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 15 August 2022

Guangning Zhang, Xinxin Zhang and Yingying Wang

This study aims to investigate the effect of perceived insider status to employees' innovative behavior, the mediating role of knowledge sharing and the moderating role of…

1018

Abstract

Purpose

This study aims to investigate the effect of perceived insider status to employees' innovative behavior, the mediating role of knowledge sharing and the moderating role of organizational innovation climate in the relationship between knowledge sharing and employees' innovative behavior.

Design/methodology/approach

This study adopted questionnaires to gather data. The sample of 341 employees working in diverse organizations in China was applied to examine the hypotheses.

Findings

The results indicate that perceived insider status is positively related to employees' innovative behavior and knowledge sharing mediates the relationship between perceived insider status and employees' innovative behavior. In addition, organizational innovation climate enhances the relationship of knowledge sharing and employees' innovative behavior.

Originality/value

This study builds a system from psychological aspect to behavior, which includes the mechanism of the influence of perceived insider status on employees' innovative behavior and a cross-level analysis of the influence of organizational innovation climate on employees' innovative behavior, breaking through the previous research paradigm of a single level of climate and employee behavior.

Details

European Journal of Innovation Management, vol. 27 no. 2
Type: Research Article
ISSN: 1460-1060

Keywords

Article
Publication date: 6 September 2021

Guangning Zhang and Yingmei Wang

This study aims to investigate the effect of organizational identification to employees’ innovative behavior, the mediating role of work engagement and the moderating role of…

1341

Abstract

Purpose

This study aims to investigate the effect of organizational identification to employees’ innovative behavior, the mediating role of work engagement and the moderating role of creative self-efficacy in the relationship between organizational identification and employees’ innovative behavior.

Design/methodology/approach

This study adopted questionnaires to gather data. The sample of 289 employees working in diverse organizations in China was applied to examine the hypotheses.

Findings

The results indicates that organizational identification is positively related to employees’ innovative behavior and work engagement mediates the relationship between organizational identification and employees’ innovative behavior. In addition, creative self-efficacy enhances the relationship of work engagement and employees’ innovative behavior.

Originality/value

This study builds a system from psychological aspect to behavior, which includes the effect of individual cognition to explain the mechanism of organizational identification on employees’ innovative behavior.

Details

Chinese Management Studies, vol. 16 no. 5
Type: Research Article
ISSN: 1750-614X

Keywords

Article
Publication date: 16 July 2019

Ah Li Cheung

Since Cantonese opera was inscribed on UNESCO’s Representative List of the Intangible Cultural Heritage of Humanity in 2009, the Chinese government has carried out different…

Abstract

Purpose

Since Cantonese opera was inscribed on UNESCO’s Representative List of the Intangible Cultural Heritage of Humanity in 2009, the Chinese government has carried out different policies to “develop” Cantonese opera in Guangzhou. Through state-initiated reforms, the local performing art was homogenized, institutionalized and nationalized in many ways. In this process, the government authorities took the lead and the Cantonese opera music community was not involved in the decision making of the future of their own tradition. This paper aims to discuss this issue.

Design/methodology/approach

Based on intensive fieldwork conducted in 2011, the paper examines the meaning of heritage to the local music community, as the art form was recognized by UNESCO in 2009. Apart from studying the policies made by the government, this paper looks into the socio-political impact brought to the Cantonese opera music community from a bottom-up perspective.

Findings

Cantonese opera performances in Guangzhou as well as performers’ own social life changed drastically in recent years. Musicians faced a dilemma of whether to follow the government’s market-oriented plan or to preserve their traditional lifestyle with their own initiative.

Originality/value

This paper reveals the voices of the “voiceless” music community and investigates the consequences resulted by the heritagization of the art form to the music community.

Details

Asian Education and Development Studies, vol. 8 no. 4
Type: Research Article
ISSN: 2046-3162

Keywords

1 – 4 of 4