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Article
Publication date: 14 February 2022

Yile Zhang, Yadong Zhou and Youchao Sun

The purpose of this paper is to analyze the bird impact damage of fuselage composite stiffened structures by numerical method and to evaluate the damage and the bird impact…

Abstract

Purpose

The purpose of this paper is to analyze the bird impact damage of fuselage composite stiffened structures by numerical method and to evaluate the damage and the bird impact resistance of different structures.

Design/methodology/approach

The deformation and damage of composite stiffened plates during bird impact are numerically analyzed by the explicit finite element software LS-DYNA. A comparative study on the numerical calculation results was conducted by using SPH (Smoothed Particle Hydrodynamics)-FEM (Finite Element Method) modeling and simulation. First, the I-shaped, T-shaped, straight stiffened plates and unstiffened plate were designed. Second, the accuracy of the bird model was verified and further used to evaluate bird strikes on composite stiffened plate. Third, the results of damage modes as well as displacements of the stiffened plates were compared.

Findings

The stiffeners can increase the local stiffness of the composite panel, which can effectively inhibit the bird’s movement along the impact direction. Adding stiffeners can change the panel matrix tension damage from global distribution to local distribution mode; however, the impact damage distribution and the ability to inhibit damage propagation can differ for different stiffened panels. Especially, the I-stiffened panel exhibits a better anti-bird strike performance.

Originality/value

The analysis of geometric parameters of structural components by numerical methods can reduce the cost of the design phase and has been widely used in aircraft design. The present study evaluated the bird impact damage of composite stiffened plates with different structures, which provides a guideline for selecting the stiffened plate structure in the fuselage skin.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 6
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 9 March 2010

Zhihua Ying, Yadong Jiang, Huibin Qin, Liang Zheng and Xiaosong Du

The purpose of this paper is to show how a quartz crystal microbalance modified with poly (epichlorohydrin) (PECH) is fabricated and used for detection of acetone vapor using a…

Abstract

Purpose

The purpose of this paper is to show how a quartz crystal microbalance modified with poly (epichlorohydrin) (PECH) is fabricated and used for detection of acetone vapor using a spin‐coating method.

Design/methodology/approach

Measurements are based on the frequency shifts due to the adsorption of acetone vapor on the surface of the modified electrodes. A first‐order linear time‐invariant (LTI) system model is used to simulate the sensor response.

Findings

It is found that frequency shifts are linear to the concentrations of analyte, and cycle test examination shows good repeatability. The sensitivity to acetone vapor is better than other volatile compounds. A good match result is obtained with the LTI system model.

Originality/value

The device performance opens a potential way for analyzing acetone vapor.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 29 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 17 October 2008

HongPu Hu, WanNian Liang, YaDong Wang, XueMei An, Ping Zhou, JunHong Li, LiLi Sang and Yi Lin

To present the mechanism, on which the first module was successfully designed – the automated installation application system, in the grand automated management and evaluation for…

196

Abstract

Purpose

To present the mechanism, on which the first module was successfully designed – the automated installation application system, in the grand automated management and evaluation for community health service (CHS) sector of China.

Design/methodology/approach

The automated installation application system is constructed on the platform of Visual FoxPro8.0. The construction consists of five steps. The first is to establish the “item.” The function of “the item” is to trace all procedures, forms, menus, and various databases, such as tabulated data, summary data, and other types of data. The second is to establish the customer log‐in module. This module needs to contain a roll book of authorized customers. The third is to construct the subsystem management interface. This interface includes: entering installation the application, modifying and saving and transferring out the information, searching, printing blank form and statement. The fourth is to establish a roll book of all forms and the database of all the forms. The fifth is to establish the main procedure, connecting all the modules in the working order.

Findings

The main advantage of the system is that it is helpful for the characteristics of speedy information importation, clear and straight to the point, as well as the secure and accurate data transfer.

Originality/value

Automated management and evaluation for CHS heavily depends on the initial activation and this initiation is started using the system of installation application.

Details

Kybernetes, vol. 37 no. 9/10
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 28 December 2023

Yadong Dou, Xiaolong Zhang and Ling Chen

The coal-fired power plants have been confronted with new operation challenge since the unified carbon trading market was launched in China. To make the optimal decision for the…

Abstract

Purpose

The coal-fired power plants have been confronted with new operation challenge since the unified carbon trading market was launched in China. To make the optimal decision for the carbon emissions and power production has already been an important subject for the plants. Most of the previous studies only considered the market prices of electricity and coal to optimize the generation plan. However, with the opening of the carbon trading market, carbon emission has become a restrictive factor for power generation. By introducing the carbon-reduction target in the production decision, this study aims to achieve both the environmental and economic benefits for the coal-fired power plants to positively deal with the operational pressure.

Design/methodology/approach

A dynamic optimization approach with both long- and short-term decisions was proposed in this study to control the carbon emissions and power production. First, the operation rules of carbon, electricity and coal markets are analyzed, and a two-step decision-making algorithm for annual and weekly production is presented. Second, a production profit model based on engineering constraints is established, and a greedy heuristics algorithm is applied in the Gurobi solver to obtain the amounts of weekly carbon emission, power generation and coal purchasing. Finally, an example analysis is carried out with five generators of a coal-fired power plant for illustration.

Findings

The results show that the joint information of the multiple markets of carbon, electricity and coal determines the real profitability of power production, which can assist the plants to optimize their production and increase the profits. The case analyses demonstrate that the carbon emission is reduced by 2.89% according to the authors’ method, while the annual profit is improved by 1.55%.

Practical implications

As an important power producer and high carbon emitter, coal-fired power plants should actively participate in the carbon market. Rather than trade blindly at the end of the agreement period, they should deeply associate the prices of carbon, electricity and coal together and realize optimal management of carbon emission and production decision efficiently.

Originality/value

This paper offers an effective method for the coal-fired power plant, which is struggling to survive, to manage its carbon emission and power production optimally.

Details

International Journal of Energy Sector Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1750-6220

Keywords

Article
Publication date: 13 December 2021

Yadong Shu, Ying Dai, Zujun Ma and Zhijun Hu

This study explores the impact of EN's (venture entrepreneurs, simplified as EN) jealousy fairness concerns coefficient on two-stage venture capital decision-making in cases of…

Abstract

Purpose

This study explores the impact of EN's (venture entrepreneurs, simplified as EN) jealousy fairness concerns coefficient on two-stage venture capital decision-making in cases of symmetrical and asymmetrical information. It discusses the equilibrium solution of two-stage venture.

Design/methodology/approach

The principal-agent model was established based on multiple periods, and differentiated contracts were established at different stages. The validity of the models and the contract was verified by numerical simulation.

Findings

The results suggest that with the increase in the EN fairness concerns coefficient, the effort level of EN decreases continuously and decreases faster in the second stage because this is the last stage. The level of VC's (venture capitalist, simplified as VC) effort declines first and then increases; that is, VC will increase the effort level when the fairness concerns coefficient increases to a certain threshold. To motivate EN to pay more effort, VC will increase the incentive to EN in the first stage. However, it will reduce the level of incentive to EN in the second stage. In the limited stage of venture investment, consider that the fairness concerns of EN do not make the profits of EN and VC achieve Pareto improvement simultaneously.

Originality/value

First, the authors implanted fairness concerns into multi-stage venture capital and discussed the impact of fairness concerns on the efforts and returns of both parties. Second, among the influencing factors of the project output, the authors consider the bilateral efforts of EN and VC, the working capacity of EN, the initial investment scale, and the external uncertain environment.

Details

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

Keywords

Article
Publication date: 1 July 2006

Yee Kwan Tang

This study aims at providing exploratory insights into the initiative and capabilities of Chinese SMEs to develop and utilize diverse networks to support internationalization…

670

Abstract

This study aims at providing exploratory insights into the initiative and capabilities of Chinese SMEs to develop and utilize diverse networks to support internationalization. Such network development and utilization efforts are fundamental to the analysis and explanation of Chinese firms’ internationalization patterns and outcomes. Extending from the existing network studies in the Chinese context that generally put emphasis on strong‐tie and ethnic‐oriented networks, this paper investigates and explains explicitly the use and effects of both strong‐ and weak‐tie networks in the international development of Chinese SMEs. Indepth case studies on four rapidly internationalized Chinese SMEs are conducted. The case findings demonstrate that weak‐tie networks are essential to the firms’ business development in foreign markets; and were proactively developed and utilized in the course of the firms’ development. The cases also provide alternative perspectives to the beliefs and values underpinning strong‐tie networks presumed in existing literature. The findings draw attention to the changing business values and approaches of the Chinese firms aiming at developing internationally. Managerial implications concerning the significant influence of effective networking on internationalization are pinpointed.

Details

Journal of Asia Business Studies, vol. 1 no. 1
Type: Research Article
ISSN: 1558-7894

Keywords

Article
Publication date: 29 October 2018

David Ahlstrom, Xiaohua Yang, Liang Wang and Changqi Wu

This paper aims to study largely recent aspects of entrepreneurship and innovation in China. It synthesizes the research in the current special issue (SI) of Multinational

2210

Abstract

Purpose

This paper aims to study largely recent aspects of entrepreneurship and innovation in China. It synthesizes the research in the current special issue (SI) of Multinational Business Review (MBR) on this topic. In addition, this paper differs from other work on this topic in examining entrepreneurship and innovation from a more global standpoint with relevant international effects.

Design/methodology/approach

The paper provides an overview of the literature on entrepreneurship, innovation and key related topics such as firm and economic growth, as well as linking this research to related international works. It also summarizes the papers of the SI.

Findings

The authors’ analysis suggests that the study of entrepreneurship and innovation should be placed in the context of a country’s economic development and institutional environment as well as the firm internationalization trajectories and business models. In addition, the authors believe that a good understanding of economic growth in a transition economy like China (which is a key goal of China’s recent emphasis on innovation) is facilitated by understanding the comparative advantages and disadvantages of an economy with respect to the global innovation system.

Originality/value

The authors’ study explores the local-global and parent-subsidiary connectivity and co-evolution of firm strategies and the institutional environment in entrepreneurship and innovation in emerging and transition economies. The authors summarize and synthesize the papers in this SI to provide the results as well as some directions for future research in the domain of entrepreneurship, innovation and new venture creation, which is believed to be a key engine of economic growth in the coming years.

Details

Multinational Business Review, vol. 26 no. 4
Type: Research Article
ISSN: 1525-383X

Keywords

Article
Publication date: 19 February 2018

Inya Egbe, Emmanuel Adegbite and Kemi C. Yekini

The purpose of this paper is to examine how differences in the institutional environments of a multinational enterprise (MNE) shape the role of management control systems (MCSs…

1014

Abstract

Purpose

The purpose of this paper is to examine how differences in the institutional environments of a multinational enterprise (MNE) shape the role of management control systems (MCSs) and social capital in the headquarter (HQ)-subsidiary relationship of an emerging economy MNE.

Design/methodology/approach

A case study design was adopted in this research in order to understand how the differences in the institutional environments of an MNE shape the design and use of MCSs. Data were gathered by means of semi-structured interviews, document analysis and observations. Interviews were conducted at the Nigerian HQ and UK subsidiary of the Nigerian Service Multinational Enterprise (NSMNE).

Findings

The study found that the subsidiary operated autonomously, given its residence in a stronger institutional environment than the HQ. Instead of the HQ depending on MCSs means of coordination and control, it relied on social capital that existed between the HQ and subsidiary to coordinate and integrate the operation of the foreign subsidiary studied.

Research limitations/implications

The evidence from this research indicates that social capital could be effective in the integration and coordination of multinational operations. However, where social capital becomes the main mechanism of coordination and integration of HQ-subsidiary operations, the focus may have to be, as in this case, on organisational social capital and the need to achieve group goals, rather than specifically designated target goals for the subsidiary. The implication of this is that it may limit the potential of the subsidiary to explore its environment and search for opportunities. These are important insights into the relationship between developed country-based subsidiaries and their less developed countries-based HQs.

Practical implications

A practical implication of this research is in the use of local or expatriate staff to manage the operation of the subsidiary. While previous studies on the MNE, from the conventional perspective of multinational operation, suggest that expatriates may be sent to the subsidiary to head key positions so as to enable the HQ to have control of the subsidiary operation, it is different in this case. The NSMNE has adopted a policy of using locals who have the expertise and understanding of the UK institutional environment to manage the subsidiary’s operation.

Social implications

This research sheds some light on how development issues associated with a multinational institutional environment may shape the business activities and the relationship between the HQ and subsidiary. It gives some understanding of how policies and practices may have different impacts on employees as businesses attempt to adjust to pressures from their external environment(s).

Originality/value

The reliance on social capital as a means of coordination and control of the foreign subsidiary in this study is significant, given that previous studies have indicated that multinational HQs normally transfer controls and structure to foreign subsidiaries as a means of control. Also, while previous studies have suggested that MNEs HQ have better expertise that enables them to design and transfer MCSs to foreign subsidiaries, this study found that such expertise relates to the institutional environment from which the HQ is operating from. Through the lens of institutional sociology theory, these findings directly contribute to the literature on the transference of practices and control systems in international business discourse.

Details

Accounting, Auditing & Accountability Journal, vol. 31 no. 2
Type: Research Article
ISSN: 0951-3574

Keywords

Article
Publication date: 5 April 2024

Yirong Gao, Xiaolin Wang and Dongsheng Li

This study aims to explore the relationship between the degree of state-owned enterprises’ (SOEs) mixed reform and the environmental response of enterprises, against the…

Abstract

Purpose

This study aims to explore the relationship between the degree of state-owned enterprises’ (SOEs) mixed reform and the environmental response of enterprises, against the background of actively promoting the reform of mixed ownership in China.

Design/methodology/approach

The study is conducted on a sample of A-share listed manufacturing companies in Shanghai and Shenzhen of China, investigated for the period 2015 to 2020. The baseline regression results are robust to a series of robustness and endogeneity tests. To deal with the issue of endogeneity, the technique of instrumental variable method has been applied.

Findings

The study confirms the U-shaped effect of the depth and restriction of mixed ownership on SOEs’ environmentally responsive behaviour in the manufacturing industry, especially for lower environmental regulation and higher level of risk-taking firms. The findings indicate that the government, shareholders and other stakeholders of enterprises should not simply consider that the mixed reform is directly promoting or reducing the environmental response behaviour of enterprises.

Practical implications

SOEs should improve their shareholding structures to undermine performance enhancement at the expense of the environment and increase environmentally beneficial behaviours. Regulators and governments should improve the institutional mechanism of environmental regulation and make efforts to promote corporate awareness of the environment.

Social implications

Although the adoption and implementation of environmentally friendly policies are costly, improved environmental response and other social responsibilities are helpful to corporate long-term growth and reputation and obtain more capital market attention. Therefore, firms would benefit from improving their environmental response to protect nature, as well as to enjoy the economic and social benefits of a better environmental response.

Originality/value

To the best of the authors’ knowledge, there is a lack of studies focussing on the environmental behaviour of SOEs of mixed reform. As the mixed reform in China has come to a climax phase in recent several years, SOEs of mixed reform is an ideal environment for research. The study focusses on manufacturing firms as these firms are more susceptible to contribute to environmental pollution, exploitation of natural resources and labour concerns.

Details

Sustainability Accounting, Management and Policy Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-8021

Keywords

Article
Publication date: 1 April 2003

Clare D’Souza

This paper attempts to provide an understanding of gift‐giving for a more systematic assessment of relationship building to succeed in an Asian realm. This study proposes to…

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Abstract

This paper attempts to provide an understanding of gift‐giving for a more systematic assessment of relationship building to succeed in an Asian realm. This study proposes to examine the underlying linkage between the intensity of gift‐giving and constructing relationships. The goal is to provide both researchers and businesses an insight into how to successfully manage profitable relationships in a culture‐rich environment that is growing ever more demanding and complicated. Gift‐giving is seen as an act of reciprocity, and often misconstrued as bribery by Westerners, yet it appears to be an important constituent of the Asian culture and can be seen as a form of relationship investment, that if cultivated well, can uplift interactions between businesses.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 15 no. 1/2
Type: Research Article
ISSN: 1355-5855

Keywords

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