Search results

1 – 10 of 615
To view the access options for this content please click here
Article
Publication date: 12 October 2018

Yanyan Pu, Zongchao Yu, Fengqin Wang, Yiyuan Fu, Tao Yan and Honglin Cheng

The purpose of this study is to develop luminescence sensors for the detection of nitroaromatic compounds (NACs) and metal ions to protect human health and prevent…

Abstract

Purpose

The purpose of this study is to develop luminescence sensors for the detection of nitroaromatic compounds (NACs) and metal ions to protect human health and prevent environmental pollution.

Design/methodology/approach

The composition and morphology of Eu-metal-organic frameworks (MOF) (1) were well characterized by powder X-ray diffraction, elemental analyses, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and scanning electron microscopy. The emission spectrum displays that 1 has significant characteristic emission bands of Eu(III) ions. The authors further investigated the fluorescence sensing performances of 1 to NACs and metal ions.

Findings

The results show that Eu-MOF (1) exhibits significant fluorescence quenching effect toward p-nitroaniline and Fe3+ ions with good stability and recyclability. This means that 1 can be used as a multifunctional sensing material for the detection of p-nitroaniline and Fe3+ ions.

Originality/value

The authors have successfully synthesized a fluorescence Eu-based sensing material under hydrothermal conditions. In addition, the fluorescence property and sensing performances for detecting NACs and metal ions were studied. The results suggest that 1 has highly selective fluorescence quenching toward p-nitroaniline and Fe3+ ions with not only high sensitivity and selectivity but also excellent stability and recyclability. Furthermore, this study has confirmed that the multifunctional MOF material is very useful in environment pollutants’ detection and monitoring.

Details

Sensor Review, vol. 39 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

To view the access options for this content please click here
Article
Publication date: 4 December 2017

Tao Yan, Na Qin, Shuo Zhao, Liang Ma and Enlin Yu

The purpose of this study is to focus on numerical simulation investigations of deformation analysis of asymmetric break-down rolling of a hollow steel, which seriously…

Abstract

Purpose

The purpose of this study is to focus on numerical simulation investigations of deformation analysis of asymmetric break-down rolling of a hollow steel, which seriously affects the service life of the final product.

Design/methodology/approach

The 3D rigid-plastic thermo-mechanical coupled finite element method (FEM) for a large strain was used to analyze metal deformation in the deformation zone for asymmetric rolling with different roller diameters.

Findings

The distribution of stress, strain and dimension accuracy for different diameters was obtained. The results show that the additional shear strain which is different from the normal compression deformation is generated in an asymmetric rolling process. The higher the ratio between upper and lower diameters, the greater the additional shear deformation.

Originality/value

Asymmetric rolling is an important factor affecting the dimensional accuracy of the hollow steel. This study can provide a theoretical basis for developing a reasonable rolling process of the hollow steel.

Details

World Journal of Engineering, vol. 14 no. 6
Type: Research Article
ISSN: 1708-5284

To view the access options for this content please click here
Article
Publication date: 7 August 2017

Tao Yan, Liang Ma, Shuo Zhao and Enlin Yu

This study aims to focus on numerical simulation investigations of phase transformation during cooling of 55SiMnMo steel, which is commonly applied to improve mechanical…

Abstract

Purpose

This study aims to focus on numerical simulation investigations of phase transformation during cooling of 55SiMnMo steel, which is commonly applied to improve mechanical properties.

Design/methodology/approach

A mathematical model based on the finite element method (FEM) and the phase transformation kinetics model has been proposed to predict microstructure changes during continuous cooling of 55SiMnMo steel. This model can be employed to analyze the variation of austenite, special upper bainite and lump-like composite structure with cooling time at different cooling rates.

Finding

According to the continuous cooling experiments, when the cooling rate is lower than 0.1°C/s, the special upper bainite is the only transformation product which decreases with increasing cooling rate; when the cooling rate is above 0.5°C/s, the transformation products include special upper bainite and lump-like composite structure. Meanwhile, the results of continuous cooling experiment verified the correctness of this finite element model.

Originality/value

This model has a great value for proper controlling of the cooling process which can improve the quality of hollow drill steel and increase the service life of the final product.

Details

World Journal of Engineering, vol. 14 no. 4
Type: Research Article
ISSN: 1708-5284

Keywords

To view the access options for this content please click here
Article
Publication date: 29 June 2020

Yan Tao, Gaoyan Xu and Hong Liu

This paper extends the current understanding of the retrenchment-–turnaround relationship in declined companies by introducing a compensation gap view. It argues that the…

Abstract

Purpose

This paper extends the current understanding of the retrenchment-–turnaround relationship in declined companies by introducing a compensation gap view. It argues that the effectiveness of the retrenchment strategy is contingent on reducing the executive-employee compensation gap in the turnaround process.

Design/methodology/approach

Drawing from a two-stage turnaround model and insights from the literature on executive-employee compensation gap, we develop and test a theoretical model that explains how five attributes, which refer to executive-employee compensation gap, asset retrenchment, cost retrenchment, ownership and size, affect the outcome of the organizational turnaround. This paper uses the fuzzy-set qualitative comparative analysis (fsQCA) method and based on the samples of 112 listed companies that experience the decline between 2005 and 2013.

Findings

This paper concludes two valid causal paths and finds that small companies with small executive-employee compensation gap have a higher likelihood of successful turnaround when they implement cost or asset retrenchment actions. As for large state-owned companies, they should reduce the costs and maintain a small executive-employee compensation gap. An excessive compensation gap can be problematic, which could impair the organizational ability to cope with adversity and decline.

Research limitations/implications

First, this paper taps the vital role of employees in the turnaround process besides the mainstream “organizational decline-layoffs” logic, which hints a new human resource management strategy when organizations are facing decline. Second, this paper reveals the theoretical linkage between pay dispersion, internal stakeholder and organizational resilience. Third, as a methodological contribution, we introduce fsQCA, overcoming the shortcomings of turnaround strategy research with case and regression analysis and breaking through the paradigm of “specific factor-turnaround.”

Practical implications

Organizational turnaround is a systematic process that constitutes multiple factors together. When organizations take the asset retrenchment to stop bleeding, reducing the executive-employee compensation gap will help enhance employee's cognition of organizational values and strategic goals, eliminate feelings of exploitation in retrenchment implementation and thus effectively promote turnaround. This paper also provides a basis for executive compensation restrictions and re-examines pay dispersion and economic inequality.

Originality/value

This study sheds some light on the importance of the executive-employee compensation gap in retrenchment strategy and contributes to both organizational turnaround and pay dispersion theories. Also, it reveals the theoretical linkage between internal stakeholders, organizational resilience and long-term orientation.

Details

Journal of Organizational Change Management, vol. 33 no. 5
Type: Research Article
ISSN: 0953-4814

Keywords

To view the access options for this content please click here
Article
Publication date: 26 September 2018

Wu He, Weidong Zhang, Xin Tian, Ran Tao and Vasudeva Akula

Customer knowledge from social media can become an important organizational asset. The purpose of this paper is to identify useful customer knowledge including knowledge…

Abstract

Purpose

Customer knowledge from social media can become an important organizational asset. The purpose of this paper is to identify useful customer knowledge including knowledge for customer, knowledge about customers and knowledge from customers from social media data and facilitate social media-based customer knowledge management.

Design/methodology/approach

The authors conducted a case study to analyze people’s online discussion on Twitter regarding laptop brands and manufacturers. After collecting relevant tweets using Twitter search APIs, the authors applied statistical analysis, text mining and sentiment analysis techniques to analyze the social media data set and visualize relevant insights and patterns in order to identify customer knowledge.

Findings

The paper identifies useful insights and knowledge from customers and knowledge about customers from social media data. Furthermore, the paper shows how the authors can use knowledge from customers and knowledge about customers to help companies develop knowledge for customers.

Originality/value

This is an original social media analytics study that discusses how to transform large-scale social media data into useful customer knowledge including knowledge for customer, knowledge about customers and knowledge from customers.

Details

Journal of Enterprise Information Management, vol. 32 no. 1
Type: Research Article
ISSN: 1741-0398

Keywords

To view the access options for this content please click here
Article
Publication date: 13 November 2017

Wu He, Xin Tian, Ran Tao, Weidong Zhang, Gongjun Yan and Vasudeva Akula

Online customer reviews could shed light into their experience, opinions, feelings, and concerns. To gain valuable knowledge about customers, it becomes increasingly…

Abstract

Purpose

Online customer reviews could shed light into their experience, opinions, feelings, and concerns. To gain valuable knowledge about customers, it becomes increasingly important for businesses to collect, monitor, analyze, summarize, and visualize online customer reviews posted on social media platforms such as online forums. However, analyzing social media data is challenging due to the vast increase of social media data. The purpose of this paper is to present an approach of using natural language preprocessing, text mining and sentiment analysis techniques to analyze online customer reviews related to various hotels through a case study.

Design/methodology/approach

This paper presents a tested approach of using natural language preprocessing, text mining, and sentiment analysis techniques to analyze online textual content. The value of the proposed approach was demonstrated through a case study using online hotel reviews.

Findings

The study found that the overall review star rating correlates pretty well with the sentiment scores for both the title and the full content of the online customer review. The case study also revealed that both extremely satisfied and extremely dissatisfied hotel customers share a common interest in the five categories: food, location, rooms, service, and staff.

Originality/value

This study analyzed the online reviews from English-speaking hotel customers in China to understand their preferred hotel attributes, main concerns or demands. This study also provides a feasible approach and a case study as an example to help enterprises more effectively apply social media analytics in practice.

Details

Online Information Review, vol. 41 no. 7
Type: Research Article
ISSN: 1468-4527

Keywords

To view the access options for this content please click here
Article
Publication date: 1 January 2006

C. Matthew Hinton and Yan Tao

To investigate the key sources of competitive advantage gained from e‐business applications by Chinese real estate developers and whether the value chain theory and its…

Abstract

Purpose

To investigate the key sources of competitive advantage gained from e‐business applications by Chinese real estate developers and whether the value chain theory and its related theories can explain this phenomenon.

Design/methodology/approach

A key issue in e‐business is how established companies can gain competitive advantage. Despite the interest in e‐business applications, few empirical studies have been carried out to look at how “clicks‐and‐mortar” approaches offer competitive advantages, especially from specific industry perspectives. By using a qualitative case study approach this study addresses this.

Findings

The study shows that the value chain framework is useful to identify and categorize possible e‐business application areas. Moreover, this categorization makes identification of key sources of competitive advantage explicit. However, this framework cannot fully explain the success of e‐business applications nor the realization of intended motivations.

Research limitations/implications

Further research is needed to make the value chain model become an easily‐used, practical guideline for e‐business implementation. This study has focussed on one specific industry within China (centre on real estate) so generalisation to other industries is limited at this stage. Similar research in other sectors will go a long way to addressing this.

Practical implications

Offers organizations a theoretical framework which helps to support the identification of appropriate e‐business applications. Furthermore, it closes the gap between strategic direction and subsequent system implementation.

Originality/value

This paper provides empirical evidence of how established organizations gain competitive advantage through their e‐business applications. Furthermore, it offers insight into how value chain theory helps to explain this phenomenon within the context of ongoing changes within the Chinese economy.

Details

Journal of Technology Management in China, vol. 1 no. 1
Type: Research Article
ISSN: 1746-8779

Keywords

To view the access options for this content please click here
Article
Publication date: 27 November 2020

Chunjiao Jiang and Pengcheng Mao

The purpose of this paper is to examine how Si-shu, a traditional form of local, private education grounded in classical instruction, responded to the rapid modernization…

Abstract

Purpose:

The purpose of this paper is to examine how Si-shu, a traditional form of local, private education grounded in classical instruction, responded to the rapid modernization of education during the late Qing dynasty and early Republic of China and to explain why these schools, once extraordinarily adaptable, finally disappeared.

Design/methodology/approach:

The authors have examined both primary and secondary sources, including government reports, education yearbooks, professional annals, public archives, and published research to analyze the social, political and institutional changes that reshaped Si-shu in the context of China's late-19th- and early-20th-century educational modernization.

Findings:

Si-shu went through four stages of institutional change during the last century. First, they faced increased competition from new-style (westernized) schools during the late Qing dynasty. Second, they engaged in a process of intense self-reform, particularly after the Xinhai Revolution of 1911. Third, they were marginalized by the new educational systems of the Republic of China, especially the Renxu School System of 1922 and the Wuchen School System of 1928. Finally, after the foundation of the People's Republic of China in 1949, they were considered remnants of feudal culture and forcibly replaced by modern schools.

Originality/value:

This paper brings hitherto unexplored Chinese sources to an English-speaking audience in an effort to shed new light on the history of traditional Chinese education. The fate of Si-shu was part of the larger modernization of Chinese education – a development that had both advantages and disadvantages.

Details

History of Education Review, vol. 50 no. 1
Type: Research Article
ISSN: 0819-8691

Keywords

Abstract

Details

Online Information Review, vol. 40 no. 1
Type: Research Article
ISSN: 1468-4527

Content available
Article
Publication date: 28 January 2014

Bjorn Gustafsson

Abstract

Details

China Agricultural Economic Review, vol. 6 no. 1
Type: Research Article
ISSN: 1756-137X

1 – 10 of 615