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Article
Publication date: 15 March 2024

Di Cheng, Yuqing Wen, Zhiqiang Guo, Xiaoyi Hu, Pengsong Wang and Zhikun Song

This paper aims to obtain the evolution law of dynamic performance of CR400BF electric multiple unit (EMU).

286

Abstract

Purpose

This paper aims to obtain the evolution law of dynamic performance of CR400BF electric multiple unit (EMU).

Design/methodology/approach

Using the dynamic simulation based on field test, stiffness of rotary arm nodes and damping coefficient of anti-hunting dampers were tested. Stiffness, damping coefficient, friction coefficient, track gauge were taken as random variables, the stochastic dynamics simulation method was constructed and applied to research the evolution law with running mileage of dynamic index of CR400BF EMU.

Findings

The results showed that stiffness and damping coefficient subjected to normal distribution, the mean and variance were computed and the evolution law of stiffness and damping coefficient with running mileage was obtained.

Originality/value

Firstly, based on the field test we found that stiffness of rotary arm nodes and damping coefficient of anti-hunting dampers subjected to normal distribution, and the evolution law of stiffness and damping coefficient with running mileage was proposed. Secondly stiffness, damping coefficient, friction coefficient, track gauge were taken as random variables, the stochastic dynamics simulation method was constructed and applied to the research to the evolution law with running mileage of dynamic index of CR400BF EMU.

Details

Railway Sciences, vol. 3 no. 2
Type: Research Article
ISSN: 2755-0907

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Article
Publication date: 20 November 2024

Chenxia Zhou, Zhikun Jia, Shaobo Song, Shigang Luo, Xiaole Zhang, Xingfang Zhang, Xiaoyuan Pei and Zhiwei Xu

The aging and deterioration of engineering building structures present significant risks to both life and property. Fiber Bragg grating (FBG) sensors, acclaimed for their…

101

Abstract

Purpose

The aging and deterioration of engineering building structures present significant risks to both life and property. Fiber Bragg grating (FBG) sensors, acclaimed for their outstanding reusability, compact form factor, lightweight construction, heightened sensitivity, immunity to electromagnetic interference and exceptional precision, are increasingly being adopted for structural health monitoring in engineering buildings. This research paper aims to evaluate the current challenges faced by FBG sensors in the engineering building industry. It also anticipates future advancements and trends in their development within this field.

Design/methodology/approach

This study centers on five pivotal sectors within the field of structural engineering: bridges, tunnels, pipelines, highways and housing construction. The research delves into the challenges encountered and synthesizes the prospective advancements in each of these areas.

Findings

The exceptional performance of FBG sensors provides an ideal solution for comprehensive monitoring of potential structural damages, deformations and settlements in engineering buildings. However, FBG sensors are challenged by issues such as limited monitoring accuracy, underdeveloped packaging techniques, intricate and time-intensive embedding processes, low survival rates and an indeterminate lifespan.

Originality/value

This introduces an entirely novel perspective. Addressing the current limitations of FBG sensors, this paper envisions their future evolution. FBG sensors are anticipated to advance into sophisticated multi-layer fiber optic sensing networks, each layer encompassing numerous channels. Data integration technologies will consolidate the acquired information, while big data analytics will identify intricate correlations within the datasets. Concurrently, the combination of finite element modeling and neural networks will enable a comprehensive simulation of the adaptability and longevity of FBG sensors in their operational environments.

Details

Sensor Review, vol. 45 no. 1
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 28 March 2024

Zhikun Ding, Wanqi Nie, Vivian W.Y. Tam and Chethana Illankoon

The preferences and adoption of recycled materials by consumers are subject to a variety of factors, such as enablers and barriers. Despite this, there exists a paucity of…

183

Abstract

Purpose

The preferences and adoption of recycled materials by consumers are subject to a variety of factors, such as enablers and barriers. Despite this, there exists a paucity of research concerning stakeholders' perceived value and real purchase decision towards recycled products. Consequently, this research study aims to fill this gap by investigating stakeholders' perceived value of recycled products derived from construction and demolition (C&D) waste and its effect on purchase decisions.

Design/methodology/approach

Research data were collected from 219 valid questionnaires completed by Chinese stakeholders. Structural equation modeling (SEM) was then employed to test eight hypotheses.

Findings

The results show intrinsic cue (materials) and extrinsic cue (brand) influence the stakeholders’ judgment on C&D waste recycled products’ value and then their purchase intention. However, cues such as quality, word-of-mouth, price, policy and advertised have not play a significant role in practice.

Originality/value

This research study verified the significance of brand and material cues on decision making for purchasing C&D waste recycled products, providing new insights to policy making to enhance the uptake of C&D waste recycled products in construction industry.

Details

Engineering, Construction and Architectural Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0969-9988

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Article
Publication date: 25 September 2024

Baher Rahma, Tomaž Kramberger, Mahmoud Barakat and Ahmed Hussein Ali

In recent years, the global focus has increasingly shifted toward the adoption of electric vehicles (EVs) due to growing concerns about environmental sustainability and the…

350

Abstract

Purpose

In recent years, the global focus has increasingly shifted toward the adoption of electric vehicles (EVs) due to growing concerns about environmental sustainability and the imperative of reducing greenhouse gas emissions. The transportation sector, a significant contributor to air pollution and climate change, faces increasing pressure to embrace EVs as a solution. However, the resistance exhibited by customers toward adopting new technology poses a substantial obstacle to the widespread adoption of EVs. Drawing on the link between theory of reasoned action (TRA) and self-congruity theory, this research aims to determine the factors that affect the customer intention toward EV.

Design/methodology/approach

The research conducts a questionnaire collecting 950 respondents from the Egyptian market. The research used primary quantitative data from online and self-administered questionnaires.

Findings

The findings indicated that green trust, price sensitivity and reliability have a positive impact on customer’s intention. However, self-image congruence was not affecting customer intention. For the moderating role of financial self-efficacy, it is affecting the relationship between price sensitivity and customer’s purchase intentions toward EV.

Research limitations/implications

This research will expand the theory by conceptualizing its abstract notions through research variables and implementing them in the Egyptian market. Furthermore, it links the two distinct theories. This knowledge can be utilized by policymakers and stakeholders to expedite the adoption of EVs in the Egyptian market.

Originality/value

This study presents a conceptual framework for managers and policymakers about the factors that affect the customer to buy EVs, since the international organizations emphasize eco-friendly transportation systems.

Details

Business Process Management Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1463-7154

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Book part
Publication date: 7 October 2024

Zhanbing Ren

In the past 10 years, the scale of running events in China has increased dramatically, and the forms of running events have also become rich and diverse. Running is not only a…

Abstract

In the past 10 years, the scale of running events in China has increased dramatically, and the forms of running events have also become rich and diverse. Running is not only a social phenomenon but also a historical and cultural phenomenon as an organic part of human culture with its own sociological values in China. This chapter offers insight into the development of Chinese running culture and how this has emerged from ancient and modern Chinese running cultures based on Foucault's disciplinary power theory, biopower and the technologies of the self. This chapter argues that running culture in China constructs the subjectivity of the Chinese runners under the joint action of the technologies of power and the technologies of the self. The findings acknowledge how Chinese Runners present and express themselves by showing a ‘sense of presence’. Runners illustrate the implicit or explicit meaning and value of a particular way of life through running. Runners regard running as the technology of the self for self-expression and self-creation so that individuals can control their bodies and soul, thoughts, behaviours and ways of existence. Emerging technologies of power provide possibilities for the production of running culture in China, and the current policy under the technologies of power meets the needs of runners. In Chinese running culture, power was not oppressive but productive.

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Article
Publication date: 12 April 2022

Hamidreza Vosoughifar, S. Farzadi and SZ. Hosseininejad

Lean management has been used in various constructions around the world for more than a quarter of a century, and it is an important factor in the construction of new projects. In…

89

Abstract

Purpose

Lean management has been used in various constructions around the world for more than a quarter of a century, and it is an important factor in the construction of new projects. In relation to demolition management, only standards and codes and general principles of demolition of specific buildings were evaluated. The purpose of this study is providing relation between lean management on demolition processes of municipality buildings evaluated.

Design/methodology/approach

This study investigates the lean demolition of demolished and renovated buildings in a metropolitan area that can be extended to all cities. In the first stage, the effective factors in the demolition of the building based on lean management were identified through a valid questionnaire based on the valid Delphi approach. Social, economic and environmental considerations were considered in designing the appropriate questionnaire.

Findings

The modified approach between the fuzzy method and partial least squares was used to evaluate important variables. All of the modified processes were developed in MATLAB by the authors of this paper. The results show that customer-focused degradation parameter has the weakest effect and waste removal variable has the most effect on lean management.

Originality/value

Statistical results show that there is no significant difference between the effect of lean management on variables such as demolition time, quality and type of construction (p < 0.05).

Details

Journal of Facilities Management , vol. 21 no. 5
Type: Research Article
ISSN: 1472-5967

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Article
Publication date: 8 March 2021

Muhammad Farrukh, Ali Raza, Fanchen Meng and Yihua Wu

To commemorate the 13th anniversary of the Chinese Management Studies (CMS) and suggest future research directions, this study aims to present an overview of the CMS through a…

354

Abstract

Purpose

To commemorate the 13th anniversary of the Chinese Management Studies (CMS) and suggest future research directions, this study aims to present an overview of the CMS through a systematic bibliometric analysis from 2007 to 2019. The analysis emphasizes the trend of themes, structure of publications and citations, the most cited publications, the most productive authors, universities, countries and regions.

Design/methodology/approach

The study uses the data extracted from the Scopus database to present an overview; besides, it also uses VOSviewer and Bibliometrix software packages to visualize the intellectual network of CMS.

Findings

This analysis is based on 486 publications between 2007 and 2019. Results show that there is a rising trend in the number of citations to CMS. The researchers from China were the most frequent contributors to the journal, whereas researchers from the USA, Taiwan, Singapore and Australia were well represented. In addition, the results show that innovation, leadership, human resource management and corporate social responsibility have been the most important research themes in the journal.

Practical implications

This study offers an objective view of the CMS publication structure. The study’s findings can help the journal readers obtain a quick snapshot of the leading trends occurring in the journal. Furthermore, this study provides future research directions for the journals by underscoring important themes.

Originality/value

As the journal’s first retrospective, this study not only educates and enriches CMS’ global readers and aspiring contributors but can also be useful to its editorial board, as it provides several inputs in the form of future research directions to guide the journal’s progress.

Details

Chinese Management Studies, vol. 16 no. 1
Type: Research Article
ISSN: 1750-614X

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Article
Publication date: 30 September 2024

Ahmad A. Al-Majali

The study aims to estimate Green Total Factor Productivity (GTFP) and green efficiency in Jordan.

27

Abstract

Purpose

The study aims to estimate Green Total Factor Productivity (GTFP) and green efficiency in Jordan.

Design/methodology/approach

This study used the Super-SBM model.

Findings

The study found significant progress in green factor productivity from 2014 to 2022, more significant than the total ordinary productivity. Also, environmental efficiency rebounded to reach its peak in the period from 2020 to 2022, where the efficiency value reached one, which can be attributed to the government's adoption of many policies focusing on using green energy methods in production processes, especially in the use of solar energy and waste recycling, and the use of energy-saving machines, particularly encouraging the use of electric cars.

Originality/value

The primary contribution of this study can be summarized in evaluating the results of growth calculation with the results of the Super-SBM model to calculate green efficiency by identifying appropriate and undesirable outputs. This provides a new perspective in studying GTFP and fills the gap in the theoretical understanding of green development strategy.

Details

Journal of Economic Studies, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0144-3585

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