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Article
Publication date: 3 May 2011

Lulu Peng, Jianchang Li, Tianhui Ren, Hua Wu and Chenyan Ma

The purpose of the research was to test whether the novel synthesized additive TEAT can be a substitution for the traditional additive ZDDP partly or entirely in mineral oil.

318

Abstract

Purpose

The purpose of the research was to test whether the novel synthesized additive TEAT can be a substitution for the traditional additive ZDDP partly or entirely in mineral oil.

Design/methodology/approach

The extreme pressure, antiwear (AW) and friction reducing property of TEAT was examined, the tribological property of the combination of TEAT and ZDDP was also examined. The worn surfaces of the steel balls were observed using a polarizing optical microscope and x‐ray absorption near edge structure spectroscopy.

Findings

The results show that: TEAT can enhance the PB value of the base oil obviously; TEAT shows better AW performance than ZDDP in high load and a wide range of concentration, it shows better friction‐reducing performance than ZDDP in high load and all the concentration tested; TEAT alone can provide a better AW and friction reducing property than ZDDP and the combination of TEAT and ZDDP; and the tribochemical reaction occurs between novel compound and metallic surface, generating sulfur containing layer mainly exists in the form of FeS.

Originality/value

These findings indicate that TEAT presents better tribological properties than ZDDP in a wide range of practical conditions. TEAT may be a substitute for ZDDP in the future.

Details

Industrial Lubrication and Tribology, vol. 63 no. 3
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 30 August 2022

Yimin Yang, Yuefeng Su, Lulu Yang and Xiongwang Zeng

This paper aims to establish a systematic cognition to alleviate the supply–demand contradiction in rural financial markets from an integrated perspective of knowledge management…

310

Abstract

Purpose

This paper aims to establish a systematic cognition to alleviate the supply–demand contradiction in rural financial markets from an integrated perspective of knowledge management and proposes the concept of rural financial knowledge ecosystem (RFKE) to encourage multifaceted solutions.

Design/methodology/approach

The authors qualitatively describe the process that the knowledge management dilemmas cause the supply–demand contradiction in the rural finance and further summarize a systematic methodology from three dimensions: the knowledge subject, the knowledge environment and the knowledge ecology.

Findings

The authors list four types of knowledge management dilemmas leading to the supply–demand contradiction in the rural finance, i.e. the weak knowledge sharing, the poor knowledge flow, the slow knowledge updating and the imperfect knowledge environment. Meanwhile, the RFKE model consisting of the ecological subject, the ecological environment and the ecological regulation is also presented.

Research limitations/implications

The role of knowledge management in improving the allocation of financial resources to various rural financial market participants (government, rural financial institutions, farmers, agricultural enterprises, etc.).

Originality/value

The authors creatively give the RFKE model, which complements and enriches the theory of knowledge management. Meanwhile, relevant management practices are urgently needed under the macro circumstance of the COVID-19 pandemic and the rural revitalization in China.

Details

Journal of Knowledge Management, vol. 27 no. 1
Type: Research Article
ISSN: 1367-3270

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Article
Publication date: 28 November 2019

Guangjin Chen, Peng Lu, Zeyan Lin and Na Song

This paper aims to introduce the history and major achievement of the Chinese private enterprise survey (CPES), which is one of the most enduring large-scale nationwide sample…

379

Abstract

Purpose

This paper aims to introduce the history and major achievement of the Chinese private enterprise survey (CPES), which is one of the most enduring large-scale nationwide sample surveys in China, providing important micro firm-level data for understanding and studying the development of Chinese enterprises and entrepreneurs over the past 26 years.

Design/methodology/approach

The main body of this paper is based on a bibliometric analysis of all literature using CPES until 2017.

Findings

This paper discusses problems that users may encounter during data mining. By doing so, it can assist other researchers to get a better understanding of what has been done (e.g. journals, topics, scholars and institutions) and do their research in a more targeted way.

Research limitations/implications

As members of the survey project team, the authors also take a prospect of the future data design and use, as well as offer some suggestions about how to use the CPES data to improve high-quality development and business environment evaluation in China.

Originality/value

This paper is the first to provide an overall picture of academic papers in China and abroad that have used the CPES data.

Details

Nankai Business Review International, vol. 10 no. 4
Type: Research Article
ISSN: 2040-8749

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Article
Publication date: 17 August 2018

Daoyi Wu, Yufu Xu, Lulu Yao, Tao You and Xianguo Hu

This paper aims to study the upgradation of the lubricating performance of the renewable base oil , and to study the tribological behavior of graphene oxide (GO) sheets used as…

199

Abstract

Purpose

This paper aims to study the upgradation of the lubricating performance of the renewable base oil , and to study the tribological behavior of graphene oxide (GO) sheets used as lubricating additives in bio-oil for iron/steel contact.

Design/methodology/approach

A multifunctional end-face tribometer was used to characterize the friction coefficient and wear loss of the tribosystem under different lubricants.

Findings

The experimental results show that GO sheets with small size benefit lubricating effects and the optimal concentration of GO sheets in bio-oil is 0.4-0.6 per cent, which can form a complete lubricating film on the frictional interfaces and obtain a low friction coefficient and wear loss. Higher concentration of GO sheets can result in a significant aggregation of the sheets, reducing the content of the lubricating components in the bio-oil, which results in the increase in friction and wear; at this stage, the main wear pattern was ascribed to adhesive wear.

Practical implications

These results show a promising prospect of improving the tribological performance of renewable base oil with the introduction of GO sheets as additives.

Originality/value

No literature has covered the tribological behaviour of GO sheets in bio-oil. This study contributes to accelerating the application of bio-oil.

Details

Industrial Lubrication and Tribology, vol. 70 no. 8
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 6 August 2020

Khadeeja Nusrath T.K., Lulu V.P. and Jatinder Singh

This paper aims to build an accurate mathematical model which is necessary for control design and attitude estimation of a miniature unmanned rotorcraft and its subsequent…

142

Abstract

Purpose

This paper aims to build an accurate mathematical model which is necessary for control design and attitude estimation of a miniature unmanned rotorcraft and its subsequent conversion to an autonomous vehicle.

Design/methodology/approach

Frequency-domain system identification of a small-size flybar-less remote controlled helicopter is carried out based on the input–output data collected from flight tests of the instrumented vehicle. A complete six degrees of freedom quasi-steady dynamic model is derived for hover and cruise flight conditions.

Findings

The veracity of the developed model is ascertained by comparing the predicted model responses to the actual responses from flight experiments and from statistical measures. Dynamic stability analysis of the vehicle is carried out using eigenvalues and eigenvectors. The identified model represents the vehicle dynamics very well in the frequency range of interest.

Research limitations/implications

The model needs to be augmented with additional terms to represent the high-frequency dynamics of the vehicle.

Practical implications

Control algorithms developed using the first principles model can be easily reconfigured using the identified model, because the model structure is not altered during identification.

Originality/value

This paper gives a practical solution for model identification and stability analysis of a small-scale flybar-less helicopter. The estimated model can be easily used in developing control algorithms.

Details

Aircraft Engineering and Aerospace Technology, vol. 92 no. 10
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 1 November 2021

Ruipeng Tong, Lulu Wang, Lanxin Cao, Boling Zhang and Xiaoyi Yang

Psychosocial factors have received increasing attention regarding significantly influencing safety in the construction industry. This research attempts to comprehensively…

1241

Abstract

Purpose

Psychosocial factors have received increasing attention regarding significantly influencing safety in the construction industry. This research attempts to comprehensively summarize psychosocial factors related to safety performance of construction workers. In the context of coronavirus disease 2019, some typical psychosocial factors are selected to further analyze their influence mechanism of safety performance.

Design/methodology/approach

First, a literature review process was conducted to identify and summarize relevant psychosocial factors. Then, considering the impact of the epidemic, hypotheses on the relationship between six selected psychosocial factors (i.e. work stress, role ambiguity, work–family conflict, autonomy, social support and interpersonal conflict) and safety performance were proposed, and a hypothetical model was developed based on job demands-resources theory. Finally, a meta-analysis was used to examine these hypotheses and the model.

Findings

The results showed these psychosocial factors indirectly influenced workers’ safety performance by impacting on their occupational psychology condition (i.e. burnout and engagement). Work stress, role ambiguity, work–family conflict and interpersonal conflict were negatively related to safety performance by promoting burnout and affecting engagement. Autonomy and social support were positively related to safety performance by improving work engagement and reducing burnout.

Originality/value

This research is the pioneer systematically describing the overall picture of psychosocial factors related to the safety performance of construction workers. Through deeply discussed the mechanism of psychosocial factors and safety performance, it could provide a reference for the theory and application of psychosocial factors in the field of construction safety management.

Details

Engineering, Construction and Architectural Management, vol. 30 no. 2
Type: Research Article
ISSN: 0969-9988

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Article
Publication date: 24 January 2025

Yanhua Xie, Yimin Yang and Lulu Yang

By exploring the impact of digital knowledge resources (DKR) on the carbon emission intensity of the pig industry (PCEI), this study aims to reveal the role of DKR in reducing…

8

Abstract

Purpose

By exploring the impact of digital knowledge resources (DKR) on the carbon emission intensity of the pig industry (PCEI), this study aims to reveal the role of DKR in reducing PCEI.

Design/methodology/approach

Based on provincial panel data in China from 2011 to 2021, this study uses the entropy and Intergovernmental Panel on Climate Change coefficient methods to calculate the evaluation index system of DKR and PCEI, respectively. Empirical analysis using a panel fixed-effects model examines the influence of DKR on PCEI and its underlying mechanisms.

Findings

DKR can significantly reduce PCEI. This conclusion still holds even after undergoing endogeneity treatment and a series of robustness tests. Mechanism test results indicate that DKR can operate indirectly through the mediation mechanism of rural human capital (RHC) and pig breeding technology innovation (PTI), while environmental regulation intensity (ERI) plays a positive moderating role in the relationship between DKR and PCEI. The magnitude of the impact of DKR on PCEI depends on ERI. Further studies found that the impact of DKR on PCEI has obvious heterogeneity characteristics, and the promotion effect is more obvious in regions with good integration degrees and high development potential.

Practical implications

This paper divides DKR into three dimensions: digital technology knowledge (DTK), digital management knowledge (DMK) and digital application knowledge (DAK), providing a new framework for research and enriching the understanding of the relationship between DKR and PCEI. Furthermore, the research results reveal the application potential of DKR in the pig industry, particularly in terms of resource allocation efficiency. This is of great significance for promoting low-carbon development in the pig industry and provides insights for the low-carbon transformation of other industries. In addition, the study emphasizes the moderating effect of ERI on the mechanism of carbon reduction in the pig industry through DKR. This offers a new perspective for understanding the relationship between knowledge management and environmental governance, providing a reference basis for policy formulation in related fields.

Originality/value

This paper further enriches the role of DKR in the livestock industry. Integrating DKR with traditional industries promotes knowledge innovation, information distribution and utilization and scientific decision-making. This has significant value in promoting the development and application of carbon reduction technologies, enhancing industrial competitive advantages, and other aspects.

Details

Journal of Knowledge Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1367-3270

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Article
Publication date: 6 June 2024

Reynold James, Suzanna ElMassah and Shereen Bacheer

The United Arab Emirates (UAE) offers a level playing field to all ethnic entrepreneurs (EE’s) operating from within it. The purpose of this qualitative research case study is to…

78

Abstract

Purpose

The United Arab Emirates (UAE) offers a level playing field to all ethnic entrepreneurs (EE’s) operating from within it. The purpose of this qualitative research case study is to explore the reasons underpinning the relatively greater success that Indian-origin EE’s in the UAE have been enjoying for sustained periods – and across diverse industries – relative to their counterparts belonging to several other nations.

Design/methodology/approach

Qualitative research case study that draws from data gathered through 30 interviews of participants identified through expert sampling.

Findings

Whereas the UAE treats all its ethnic entrepreneurs (EE’s) alike and provides them with a level platform to operate from, the EE’s from India have consistently been outperforming those from all other nations, particularly within the context of the UAE’s large businesses spanning diverse industries. Three features seem to explain their success: their high tolerance for ambiguity; thriftiness; and intercultural competence.

Research limitations/implications

Two key limitations were faced: firstly, the negligible research literature on ethnic entrepreneurship in the UAE, and related official statistics such as details (by ethnicity/nationality) of EE-owned businesses, and secondly, the industry-wise break down of such businesses and their performance, as available in other developed nations hosting EE’s. Resultantly, alternate sources of data have been used to complete this research.

Practical implications

Given the UAE’s national-level institutionalised efforts to promote entrepreneurship amongst its citizens and wider populace, there are many implications that this study holds for existing and future entrepreneurs.

Originality/value

While on the one hand, the UAE and the wider Gulf Cooperation Council region have been witnessing frenetic ethnic entrepreneurial activity in the past decade, the research literature on the regions’ ethnic entrepreneurship is extremely patchy. This case study serves to significantly bridge this gap, and to the best of the authors’ knowledge, this is the first work, that extensively explores the entrepreneurial trajectory of Indian EE’s in the UAE, and the factors driving their success.

Details

International Journal of Organizational Analysis, vol. 32 no. 10
Type: Research Article
ISSN: 1934-8835

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Article
Publication date: 1 March 2000

Carl A Rodrigues, Nailin Bu and Byung Min

Discusses the effectiveness of different training approaches in other cultures. Highlights differing learning preferences in different societies. Proposes that traineers in…

1436

Abstract

Discusses the effectiveness of different training approaches in other cultures. Highlights differing learning preferences in different societies. Proposes that traineers in nations which contain a lack of individuality or confucianism prefer more teacher centred methods to those with an emphasis on individualism who require a more hands on approach.

Details

Cross Cultural Management: An International Journal, vol. 7 no. 1
Type: Research Article
ISSN: 1352-7606

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Article
Publication date: 19 October 2022

Chih-Ping Chen

Digital live streaming applications, combined with the broadcasting of cross-modal, video-mediated communication in the social networking community, have grown in popularity in…

1364

Abstract

Purpose

Digital live streaming applications, combined with the broadcasting of cross-modal, video-mediated communication in the social networking community, have grown in popularity in recent years. A theoretical gap exists regarding a comprehensive framework that explains hardcore viewer engagement through the social exchanges in digital live streaming communities. Traditional viewers engaged with a single-dimensional focal object, but nowadays, viewers interact with multidimensional and multiobjects through the social exchanges (e.g. virtual gifts, emotional supports) in live streaming digital communities. This study aims to address this void in the marketing literature of hardcore viewer engagement under dynamic social exchanges in digital live streaming communities.

Design/methodology/approach

This research used a qualitative approach. The data collections were from October 2018 to January 2020. Data were collected in semistructured interviews with 17 Media 21 hardcore viewers.

Findings

The outcomes of hardcore viewer engagement and social exchange include three main stages: introduction, immersion and enthusiasm. It indicates that loyalty and active hardcore viewer–streamer relationships were fostered through the process of hardcore viewer engagement and social exchange with multiple objects and dimensions.

Research limitations/implications

There are three main implications to the literature in this study. First, this empirical study extends the concept of consumer engagement to hardcore viewer engagement, and social exchange is found to trigger social behavior and relations in a digital live streaming community. Second, it contributes to the social media community literature. Hardcore viewer engagement provides a broad dimensional scope to examine digital live streaming community participation by integrating the cognitive, affective and behavioral aspects. Finally, it contributes to the literature of social exchange theory. It indicates that the extension of hardcore viewer–streamer social relationships is not restricted to traditional mass media but can be fostered in digital live streaming communities.

Practical implications

It contributes to the consumer engagement literature by exploring in depth viewer engagement dimensionality in a rich digital live streaming context. This study proposed a framework for understanding the stages and outcomes of viewer engagement and parasocial interactions according to three dimensions and multiple objects, which lacked empirical validation in previous studies.

Social implications

This study also contributes to the social media community literature. In capturing the functions of such groups, the variables of interest were “participation,” “involvement” and “membership.” These variables were determined through behavioral actions or intentions. In contrast, viewer engagement provided a broad dimensional scope to examine digital live streaming community participation by integrating the cognitive, affective and behavioral aspects.

Originality/value

The findings of this study indicate that the extension of parasocial relationships is not restricted to traditional mass media but can be fostered in digital live streaming communities that are designed to bring the viewer close to streamer(s), community members and system functions and activities. Although digital live streaming applications differ from traditional parasocial interaction environments because they offer direct, instantaneous, multiple communication among streamer(s), system functions and community members, the findings of the present study indicate that viewer–streamer–viewer parasocial relationships established both online and offline are often interwoven.

Details

Qualitative Market Research: An International Journal, vol. 26 no. 1
Type: Research Article
ISSN: 1352-2752

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