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1 – 10 of 144
Article
Publication date: 29 August 2019

Gang Peng, Zhiming Gao, Wenjing Yan and Xinlong Feng

This paper aims to consider numerical simulation for radionuclide transport calculations in geological radioactive waste repository.

Abstract

Purpose

This paper aims to consider numerical simulation for radionuclide transport calculations in geological radioactive waste repository.

Design/methodology/approach

The nonlinear two-point flux approximation is used to discretize the diffusion flux and has a fixed stencil. The cell-vertex unknowns are applied to define the auxiliary unknowns and can be interpolated by the cell-centered unknowns. The approximation of convection flux is based on the second-order upwind method with a slope limiter.

Findings

Numerical results illustrate that the positivity-preserving is satisfied in solving this convection-diffusion system and has a second-order convergence rate on the distorted meshes.

Originality/value

A new positivity-preserving nonlinear finite volume scheme is proposed to simulate the far-field model used in the geological radioactive waste repository. Numerical results illustrate that the positivity-preserving is satisfied in solving this convection-diffusion system and has a second-order convergence rate on the distorted meshes.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 30 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 15 November 2011

Gang Peng, Ying Wang and Rammohan Kasuganti

This study seeks to develop the concept of technological embeddedness by extending the social embeddedness theory of economic actions to household computer adoption. It…

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Abstract

Purpose

This study seeks to develop the concept of technological embeddedness by extending the social embeddedness theory of economic actions to household computer adoption. It also aims to propose a research framework in which technological embeddedness is a key factor that influences household computer adoption.

Design/methodology/approach

The US 1989‐2003 Computer and Internet Use Supplements to the Current Population Surveys are used to validate the proposed research framework.

Findings

The results show that technological embeddedness positively affects household computer adoption. In addition, the impact of technological embeddedness is positively moderated by household income, and this impact is particularly stronger on first‐time buyers than on repeat buyers.

Practical implications

The results provide important policy and managerial implications for encouraging household computer adoption and bridging the digital divide.

Originality/value

The paper proposes a new concept and develops a research framework for analyzing household computer adoption and technology adoption in general.

Details

Information Technology & People, vol. 24 no. 4
Type: Research Article
ISSN: 0959-3845

Keywords

Article
Publication date: 17 April 2007

Jifeng Mu, Gang Peng and Yi Tan

The importance of innovation to the performance of firms has led to numerous studies conducted to identify the critical successful factors in new product development…

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Abstract

Purpose

The importance of innovation to the performance of firms has led to numerous studies conducted to identify the critical successful factors in new product development (NPD). However, most of these studies were conducted within the context of the developed economies or for large enterprises; relatively little is known about how firms, especially small and medium‐size enterprises (SMEs), develop new products in many of the emerging markets. This paper tries to bridge the gap by examining the key success factors of NPD in Chinese SMEs. Different from the traditional approach regarding the success factors in each stage of NPD as homogeneous, the key success factors in each stage of the NPD process are examined from a managerial perspective.

Design/methodology/approach

The data used in this study were collected through a multi‐stage procedure including in‐depth field interviews and surveys. Two rounds of pretests were used to refine the measurements, and the 74 questionnaires retuned in the third round were used to analyze the key success factors for NPD through score ranking and principal component analysis.

Findings

Chinese SMEs do not regard financial return as the primary criterion in the idea‐generation stage. Although the key success factors are relatively quite different in various stages, technological, marketing, commercial, and managerial factors are important across all stages.

Research limitations/implications

The samples were from Beijing Incubator Alliances, which might not be representative.

Practical implications

The results will be interesting to both researchers and managers who want to know how the Chinese SMEs develop their new products.

Originality/value

Very few studies were conducted on how the Chinese SMEs develop new products, and this research contributed to this important topic. Various success factors were examined for each stage of the NPD process from a managerial perspective, rather than viewing the success factors in each stage of NPD as homogeneous, as most previous research has suggested.

Details

International Journal of Emerging Markets, vol. 2 no. 2
Type: Research Article
ISSN: 1746-8809

Keywords

Article
Publication date: 18 July 2008

Jifeng Mu, Gang Peng and Edwin Love

Researchers have long been interested in the process of how networking firms share knowledge, what mechanisms firms use to govern knowledge sharing, and what the

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Abstract

Purpose

Researchers have long been interested in the process of how networking firms share knowledge, what mechanisms firms use to govern knowledge sharing, and what the consequences are for the sharing firms. The purpose of this paper is to attempt to answer these questions from a social network perspective.

Design/methodology/approach

Qualitative method is employed to facilitate deeper understanding of soft variables and key relationships for discovering and mapping non‐formal business practices. The sampling strategy is based on relevance rather than representativeness; data analysis and theoretical analysis stresses an iterative process of theoretical sampling, comparing, and contrasting of samples to build theoretical categories.

Findings

The principal findings highlight how social capital, especially trust‐based‐ties, develops in inter‐firm interaction process, accelerates knowledge flow, and acts as an informal governance mechanism between firms. Weak ties help firms to build initial relationships and strong ties help firms to acquire higher‐quality and fine‐grained knowledge.

Research limitations/implications

The analysis rests on qualitative studies in a single industry. The paper trades generalizability for richness, thus potentially risking producing theories that are idiosyncratic and not generalizable to the entire population. Longitudinal studies with larger sample sizes are encouraged to develop more precise propositions or hypotheses for testing.

Practical implications

The identification of the process through which social capital facilitates knowledge flow and consequently innovation enhances the understanding of firms' strategic behavior, and provides managers possible guidelines on how to accumulate social capital in interfirm dynamic interaction to gain competitive advantage.

Originality/value

The paper delineates the strategic roles of social capital in facilitating knowledge flow between firms and further contributes to emerging literature by demonstrating the process of social capital development and its impact on innovation and performance.

Details

Journal of Knowledge Management, vol. 12 no. 4
Type: Research Article
ISSN: 1367-3270

Keywords

Abstract

Details

Beyond the Digital Divide: Contextualizing the Information Society
Type: Book
ISBN: 978-1-78756-548-7

Content available
Article
Publication date: 17 April 2007

Rangamohan V. Eunni, Candida G. Brush and Rammohan R. Kasuganti

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Abstract

Details

International Journal of Emerging Markets, vol. 2 no. 2
Type: Research Article
ISSN: 1746-8809

Article
Publication date: 2 March 2015

Hamid Omidvar, Mohammad Sajjadnejad, Guy Stremsdoerfer, Yunny Meas and Ali Mozafari

This paper aims to coat ternary composite NiBP-graphite films by Dynamic Chemical Plating “DCP” technique with a growth rate of at least 5 μm/h, which makes this technique…

Abstract

Purpose

This paper aims to coat ternary composite NiBP-graphite films by Dynamic Chemical Plating “DCP” technique with a growth rate of at least 5 μm/h, which makes this technique a worthy candidate for production of composite films. Electroless nickel plating method can be used to deposit nickel–phosphorous and nickel–boron coatings on metals or plastic surface. However, restrictions such as toxicity, short lifetime of the plating-bath and limited plating rate have limited applications of conventional electroless processes.

Design/methodology/approach

DCP is an alternative for producing metallic deposits on non-conductive materials and can be considered as a modified electroless coating process. Using a double-nozzle gun, two different solutions containing the precursors are sprayed simultaneously and separately onto the surface. With this technique, NiBP-graphite films are fabricated and their corrosion and tribological properties are investigated.

Findings

With a film thickness of 2 μm, tribological analysis confirms that these coatings have favorable anti-friction and anti-wear properties. Corrosion resistance of NiBP-graphite composite films was investigated, and it was found that graphite incorporation significantly enhances corrosion resistance of NiBP films.

Originality/value

DCP is faster and simpler to perform compared to other electroless deposition techniques. Using a double-nozzle gun, metal salt solution and reducing agents are sprayed to the surface, forming a deposit. Previously, coatings such as Cu, Cu-graphite, Cu-PTFE, Ni-B-TiO2, Ni-P, Ni-B-P and Ni-B-Zn with favorable compactness and adherence by DCP were reported. In this paper, the authors report the application of the DCP technique for depositing NiBP-PTFE nanocomposite films.

Details

Anti-Corrosion Methods and Materials, vol. 62 no. 2
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 4 April 2008

Tülay Esin and İzzet Yüksek

The purpose of this paper is to research the ecological properties of building materials used in some traditional buildings in Turkey and discuss the environmental…

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Abstract

Purpose

The purpose of this paper is to research the ecological properties of building materials used in some traditional buildings in Turkey and discuss the environmental benefits thereof.

Design/methodology/approach

Building materials used in some traditional buildings are investigated by a field study in the selected area. In this investigation, after the usage aims of the building materials are explained, the ecological properties and environmental benefits are discussed.

Findings

According to the results of the study, it is found that these materials being obtained from totally natural, local and renewable resources have source‐efficient and energy‐efficient features. They have significant ecological characteristics since they are easily recyclable and re‐usable, utilize agricultural wastes and do not produce any wastes.

Research limitations/implications

In almost every part of Turkey, there exist a large number of traditional buildings with ecological properties which were built at various times in history. However, it is impossible to give examples from each one of them in this study. Therefore, this study is designed to cover the buildings located at the rural area of province Kirklareli, Thrace zone. In further studies, it is possible to compare them with building samples from other region of Turkey and the World.

Originality/value

This study researches the ecological properties of building materials used in some traditional buildings. It is considered that these data would provide guidance for the building designs of today. In the rural areas where population increase rates are not so high, it is possible to use such materials for the buildings. A widespread use of these materials will prevent the environmental problems that arise out of buildings from getting higher in Turkey and in the world.

Details

Facilities, vol. 26 no. 5/6
Type: Research Article
ISSN: 0263-2772

Keywords

Article
Publication date: 3 July 2020

Jia Chen, Gang Kou, Yi Peng, Xiangrui Chao, Feng Xiao and Fawaz E. Alsaadi

Social media commerce provides a convenient way for users to share information and interact with each other. Few studies, however, have examined the effect of marketing…

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Abstract

Purpose

Social media commerce provides a convenient way for users to share information and interact with each other. Few studies, however, have examined the effect of marketing messages and consumer engagement behaviors on the economic performance of marketing. This study, therefore, explored the economic performance of social media in terms of marketing messages and consumer engagement.

Design/methodology/approach

Using ordinary least squares regression and data collected from Weibo and Maoyan, this study analyzed the effects among marketing messages, consumer engagement and movie ticket sales.

Findings

The results indicated that marketing messages on Weibo had a positive effect on box office revenues, while consumer engagement behavior (whether personal or interactive) did not affect box office revenues. The results suggested that marketing messages on social media have more salient effects for predicting economic performance than consumer engagement behaviors.

Originality/value

This study underscores the importance of social media in consumer purchasing behavior. The findings also extend the literature related to commerce and product message design on social media platforms.

Details

Internet Research, vol. 30 no. 5
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 27 June 2022

Ke Ma, Yu Li, Guoyang Liu, Gang He, Chun Sha and Yilin Peng

The purpose of this study is to investigate the deformation characteristics and failure modes of the right bank slope of Xiluodu Hydropower Station after excavation.

Abstract

Purpose

The purpose of this study is to investigate the deformation characteristics and failure modes of the right bank slope of Xiluodu Hydropower Station after excavation.

Design/methodology/approach

Micro-seismic monitoring technology is applied to obtain the microfracture information and study the internal damage evolution law of the slope rock mass. A numerical model for discontinuous deformation analysis (DDA) is established to analyse the deformation characteristics and failure mode of the slope. Micro-seismic monitoring and DDA can verify and supplement each other's results in the investigation of slope failure.

Findings

The results show that the slope has a downhill displacement along the weathered zone under natural conditions; the maximum resultant displacement at the monitoring point is 380 mm. The micro-seismic events are concentrated in an area located 30–100 m horizontally away from the slope surface and at an elevation of 390–470 m. The distribution of these micro-seismic events is consistent with the location of the unloading and weathered zones; it is the same as the DDA simulation result.

Originality/value

The study is anticipated to be used as reference for the stability analysis of rock slopes. By combining the continuous (micro-seismic monitoring technology) and discontinuous (DDA) methods, the entire process starting from the gradual accumulation of internal rock micro-damage to the macroscopic discontinuous deformation and failure of the slope can be investigated.

Details

Engineering Computations, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0264-4401

Keywords

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