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Article
Publication date: 11 November 2020

Wenwen Zhang, Peifang Weng and Zufang Wu

Mixed fermentation with Saccharomyces cerevisiae and non-Saccharomyces yeasts has become an oenlogical tool to improve wines’ organoleptic properties. However, the maximum…

576

Abstract

Purpose

Mixed fermentation with Saccharomyces cerevisiae and non-Saccharomyces yeasts has become an oenlogical tool to improve wines’ organoleptic properties. However, the maximum utilization of this method is dependent upon understanding the influence of mixed cultures on the physiology of S.cerevisiae and non-Saccharomyces yeasts.

Design/methodology/approach

In this study, the supernatants from 48 h mixed-culture fermentation were added to the pure cultures of Issatchenkia orientalis and Saccharomyces, respectively. And the authors used RNA sequencing to determine the transcriptome change of I.orientalis and S.cerevisiae in a mixed culture.

Findings

The results showed that multiple genes associated with cell growth and death were differentially expressed. Genes related to biosynthesis of amino acids were enriched among those upregulated in the mixed-fermentation supernatant. Meanwhile, the differential expression level of genes encoding enzymes essential for formation of aroma compounds was found in the single and in the mixed fermentation. The high expression level of molecular chaperones Hsp70, Hsp90 and Hsp110 suggests that metabolites of mixed-culture fermentation may lead to aggregation of misfolded proteins. Moreover, upregulation of ethanol dehydrogenase I ADH1 in the mixed-culture fermentations was highlighted.

Originality/value

This is the first time that RNA-seq was used to analyze changes in the transcriptome of mixed cultures. According to the results the authors’ manuscript provided, an integrated view into the adaptive responses of S.cerevisiae and non-Saccharomyces yeasts to the mixed-culture fermentation is benefit for the potential application of S.cerevisiae and non-Saccharomyces yeasts in fruit wine brewing.

Details

British Food Journal, vol. 125 no. 6
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 26 November 2018

Zhao Duan, Yajuan He and Yuan Zhong

Based on the text mining tools, this paper aims to propose a new method to evaluate the subjectivity and objectivity of corporate social responsibility information disclosure.

613

Abstract

Purpose

Based on the text mining tools, this paper aims to propose a new method to evaluate the subjectivity and objectivity of corporate social responsibility information disclosure.

Design/methodology/approach

The authors build up a text subjectivity evaluation model of corporate social responsibility reports through meta-analysis; a text mining is conducted to all sample CSR reports released by Chinese listed companies untill March 2016[1]. Furthermore, the authors made an overall and quantitative analysis of the situation which contained changing state, characteristics and abnormal value on the subjectivity and objectivity of information disclosure.

Findings

The results show that the subjectivity scores of social responsibility reports of Chinese listed companies are generally in a normal distribution. The diagram turns out to be a rising trend over the years and increases linearly from 2011 to 2013. Also, the industry heterogeneity and policy control are the main reasons for the formation of the differences, which are significant between different industries and different years.

Originality/value

This paper provides not only an important empirical basis for the research of corporate social responsibility but also a new idea for the non-financial information disclosure as well as objective evaluation of normative text.

Details

Nankai Business Review International, vol. 9 no. 4
Type: Research Article
ISSN: 2040-8749

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Article
Publication date: 7 February 2018

Wenwen An, Yuehua Xu and Jianqi Zhang

Previous studies have produced inconsistent findings regarding the effects of resource constraints on corporate illegal behavior. This study aims to explore how entrepreneurial…

1406

Abstract

Purpose

Previous studies have produced inconsistent findings regarding the effects of resource constraints on corporate illegal behavior. This study aims to explore how entrepreneurial firms can overcome the difficulties generated by resource constraints.

Design/methodology/approach

Drawing on insights from general strain theory and focusing on listed entrepreneurial firms, this study proposes that failure to obtain enough resources through listing generates strain in the managers of listed entrepreneurial firms, driving them to resort to corporate financial fraud as a solution. Nevertheless, such relationships between resource constraints and the likelihood of corporate financial fraud can be weakened by innovation capability, because innovation capability can generate more confidence in their managers and relieve their strains, thereby dissuading them from engaging in corporate financial fraud.

Findings

According to our empirical results, both financial and human resource constraints are positively related to the likelihood of corporate financial fraud in listed entrepreneurial firms, but such effects can be mitigated by innovation capability.

Practical implications

This study provides practical implications for both regulators and managers by indicating that although entrepreneurial firms with resource constraints are more likely to commit financial fraud, innovation capability could be a strategic approach to enhance managers’ confidence and relieve the strain.

Originality/value

Our study contributes to the literature by enriching our understanding of the consequences of resource constraints in entrepreneurial firms and highlighting the strategic importance of innovation capability in mitigating such effects.

Details

Chinese Management Studies, vol. 12 no. 1
Type: Research Article
ISSN: 1750-614X

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Article
Publication date: 9 November 2021

Pan Liu, Xiaoyan Cui, Ziran Zhang, Wenwen Zhou and Yue Long

The purpose of this paper is to solve new pricing issues faced by low-carbon companies in the Yellow River Basin, which is caused by the change of key pricing factors in the mixed…

273

Abstract

Purpose

The purpose of this paper is to solve new pricing issues faced by low-carbon companies in the Yellow River Basin, which is caused by the change of key pricing factors in the mixed appliance background of Big Data and blockchain, such as product quality and carbon-emission reduction CER level (hereafter, CER level).

Design/methodology/approach

We choose a low-carbon supply chain with a low-carbon manufacturer and a retailer as our research object. Then, we propose that using the ineffective effect of the CER level and the quality and safety level to reflect the relationships among the CER level, the quality and safety level and the market demand is more suitable in the new environment. Based on these, we revise the demand equation. Afterwards, by using Stackelberg game, four cost-sharing situations and their pricing rules are analyzed.

Findings

Results indicated that in the four cost-sharing situations, the change trends and the magnitudes of the best retail prices were not affected by the changes of the inputs of the demand information and the traceability services costs (hereafter, DITS costs), the proportion about retailer's DITS costs undertaken by the manufacturer, the ineffective effect coefficient of the CER level and the quality and safety level and the cost optimization coefficient. However, the cost-sharing situations could affect the change magnitudes of the best revenues.

Originality/value

This paper has two main contributions. First, this paper proposes a demand function that is more suitable for the mixed appliance background of Big Data and blockchain. Secondly, this paper improves the cost-sharing model and finds that demand information sharing and traceability service sharing have different impacts on key pricing factors of low-carbon product. In addition, this research provides a theoretical reference for low-carbon supply chain members to formulate pricing strategies in the new background.

Details

Kybernetes, vol. 52 no. 1
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 30 August 2024

Wenwen Zhao and Zhe Zhang

Innovative capabilities are essential for the survival and development of an organization. Previous studies have found a positive relationship between CEO transformational…

174

Abstract

Purpose

Innovative capabilities are essential for the survival and development of an organization. Previous studies have found a positive relationship between CEO transformational leadership (CEOTFL) and firm innovation. However, limited studies have endeavored to investigate the relationship between CEOTFL and firm innovation through the cognition and attitudes of the ordinary employees, despite their significant role in corporate innovation. Existing TFL literature has predominantly concentrated on “the close relationships” between leaders and their immediate subordinates, leaving the remote influence of CEOTFL on ordinary employees under-researched. Therefore, the current study aims to explain the relationship between CEOTFL and firm innovation from a micro-level perspective.

Design/methodology/approach

Multilevel and multi-sourced data from 1,627 employees across 145 firms was used to test the hypotheses in this study.

Findings

The results indicate that CEOTFL can enhance firm innovation by enhancing the collective task self-efficacy of regular employees. Moreover, this effect is not observed when employees are exposed to a low level of work–life balance practices.

Practical implications

The findings suggest that CEOs can perform increased TFL to promote firm innovation. It is recommended that CEOs demonstrate their TFL not only to their direct subordinates but also to regular employees using various methods, such as participating in corporate activities with employees, delivering public speeches and sending emails to employees. Meanwhile, the HRM system should consistently align with the CEO’s leadership approach within the organization.

Social implications

This study strengthens the importance of ordinary employees and their contribution to firm innovation.

Originality/value

The present study contributes to the literature on the micro-foundations of the relationship between CEOTFL and firm innovation by considering ordinary employee reactions as a mediator. Furthermore, this study enriches the CEOTFL literature by investigating the distant influence of CEOTFL on rank-and-file employees through the lens of social cognitive theory. Additionally, the authors expand cue consistency theory to the realms of CEO leadership and HRM literature by integrating CEOTFL and work–life balance practices into a unified model. The findings reveal the importance of coordination between CEO leadership and HRM systems within an organization. The inclusion of Chinese sample data in this study augments the cultural diversity of the sample within the CEOTFL literature.

Details

Journal of Organizational Change Management, vol. 37 no. 7
Type: Research Article
ISSN: 0953-4814

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Article
Publication date: 19 August 2019

Jing Zhang, Wenwen Kang and Lingyu Yang

Boundary layer ingestion (BLI) is one of the probable noteworthy features of distributed propulsion configuration (DPC). Because of BLI, strong coupling effects are generated…

378

Abstract

Purpose

Boundary layer ingestion (BLI) is one of the probable noteworthy features of distributed propulsion configuration (DPC). Because of BLI, strong coupling effects are generated between the aerodynamics and propulsion system of aircraft, leading to the specific lift and drag aerodynamic characteristics. This paper aims to propose a model-based comprehensive analysis method to investigate this unique aerodynamic.

Design/methodology/approach

To investigate this unique aerodynamics, a model-based comprehensive analysis method is proposed. This method uses a detailed mathematical model of the distributed propulsion system to provide the essential boundary conditions and guarantee the accuracy of calculation results. Then a synthetic three-dimensional computational model is developed to analyze the effects of BLI on the lift and drag aerodynamic characteristics.

Findings

Subsequently, detailed computational analyses are conducted at different flight states, and the regularities under various flight altitudes and velocities are revealed. Computational results demonstrate that BLI can improve the lift to drag ratio evidently and enable a great performance potentiality.

Practical implications

The general analysis method and useful regularities have reference value to DPC aircraft and other similar aircrafts.

Originality/value

This paper proposed a DPS model-based comprehensive analysis method of BLI benefit on aerodynamics for DPC aircraft, and the unique aerodynamics of this new configuration under various flight altitudes and velocities was revealed.

Details

Aircraft Engineering and Aerospace Technology, vol. 91 no. 10
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 3 November 2020

Md Rajibul Hasan, Assem Abdunurova, Wenwen Wang, Jiawei Zheng and S.M. Riad Shams

The purpose of this study is to gather insights into digital consumer behaviour related to Chinese restaurents by examining visual contents on Tripadvisor platform.

750

Abstract

Purpose

The purpose of this study is to gather insights into digital consumer behaviour related to Chinese restaurents by examining visual contents on Tripadvisor platform.

Design/methodology/approach

Using the deep learning approach, this research assessed consumer-posted online content of dining experiences by implementing image analysis and clustering. Text mining using word cloud analysis revealed the most frequently repeated keywords.

Findings

First, 4,000 photos of nine Chinese restaurants posted on Tripadvisor’s website were analyzed using image recognition via Inception V3 and Google’s deep learning network; this revealed 12 hierarchical image clusters. Then, an open-questionnaire survey of 125 Chinese respondents investigated consumers’ information needs before visiting a restaurant and after purchasing behavior (motives to share).

Practical implications

This study contributes to culinary marketing development by introducing a new analysis methodology and demonstrating its application by exploring a wide range of keywords and visual images published on the internet.

Originality/value

This research extends and contributes to the literature regarding visual user-generated content in culinary tourism.

Details

Journal of Place Management and Development, vol. 14 no. 1
Type: Research Article
ISSN: 1753-8335

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Article
Publication date: 14 November 2012

Wenwen Zhou, Ting Sun, Huey Hng, Wenjing Zhang, Yang Zhao, Hua Zhang, Jan Ma and Qingyu Yan

Three types of PbTe samples, e.g. nanoparticles, nanowires and bulk ingots, have been prepared. The investigation of the Seebeck coefficient of PbTe nanoparticles and nanowires…

103

Abstract

Three types of PbTe samples, e.g. nanoparticles, nanowires and bulk ingots, have been prepared. The investigation of the Seebeck coefficient of PbTe nanoparticles and nanowires clearly shows the sign change in the temperature range of 575~650 K, which is not observed for bulk ingots. Unfortunately, this temperature range is within the proposed operation temperature range for thermoelectric devices using PbTe and hence, such a change will affect their proper performance. The observed sign change of Seebeck coefficient is not simply caused by the composition variation at high temperature. It is mainly attributed to the extrinsic-to-intrinsic-semiconductor transition for PbTe nanocrystals due to the competing factors between quantum size effect increasing band gap and self-purification process decreasing their charge carrier concentration, which shift the transition point of nanocrystals to lower range as compare to that of bulk samples. Thus, such phenomenon should be considered carefully in the design of thermoelectric devices using semiconductor nanocrystals, which have attracted much attention recently.

Details

World Journal of Engineering, vol. 9 no. 5
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 29 October 2019

Jingzhuo Shi and Wenwen Huang

The purpose of this paper is to propose an improved differential evolution algorithm (DEA) suitable for motor’s model identification.

74

Abstract

Purpose

The purpose of this paper is to propose an improved differential evolution algorithm (DEA) suitable for motor’s model identification.

Design/methodology/approach

The mutation operation of the standard DEA is improved, and the adaptive coefficient is designed to adjust the optimization process.

Findings

The application of motor model identification shows that the proposed improved DEA is more robust, with higher modeling accuracy and efficiency, and is more suitable for motor identification modeling applications. Compared with the ultrasonic motor model established by using particle swarm algorithm, the model established in this paper has higher precision.

Originality/value

This paper explores an improved DEA suitable for motor identification modeling. The algorithm can not only obtain the optimal solution but also effectively reduce the iterative generations and time required in the process of optimization identification.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 38 no. 6
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 February 2023

Xiaoqing Feng, Wen Wen, Yun Ke and Ying He

This study aims to examine whether a firm's demand for high-quality auditors is influenced by multiple large shareholders (MLS). As one type of ownership structure, MLS have…

327

Abstract

Purpose

This study aims to examine whether a firm's demand for high-quality auditors is influenced by multiple large shareholders (MLS). As one type of ownership structure, MLS have gained popularity in China recently and have different types of large shareholders, including large institutional shareholder, large foreign shareholder and large state shareholder. The authors also examine whether different types of MLS have heterogeneous impacts on appointing high-quality auditors.

Design/methodology/approach

With a sample of 27,131 firm-year observations from Chinese public companies from 2003 to 2018, the authors use multivariate regressions to examine the effect of MLS on auditor choice. Heckman two-stage analysis, a firm fixed effects model, propensity score matching and difference-in-differences test are used as robustness checks.

Findings

This paper finds that the presence and power of MLS increase the likelihood of appointing high-quality auditors. With regard to the types of MLS, large institutional shareholders and foreign shareholders have significant positive effects on appointing high-quality auditors, while the presence of state-owned large shareholders has no effect on auditor choice. Further analyses reveal that the positive effect of MLS on high-quality auditor choice is more pronounced in firms with severe agency problems and information asymmetry. Taken together, these results suggest that MLS play a monitoring role by demanding high-quality auditors.

Originality/value

This paper contributes to the literature on the determinants of auditor choice. While prior studies primarily focus on the impact of concentrated ownership structure, corporate governance and the pressure from stakeholders on auditor choice, this paper complements the literature by providing evidence from the heterogeneous effects of different types MLS. This paper also extends the literature on the consequences of MLS from the perspective of auditor choice.

Details

Managerial Auditing Journal, vol. 38 no. 4
Type: Research Article
ISSN: 0268-6902

Keywords

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