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Article
Publication date: 24 February 2021

Samuel Gyedu, Heng Tang, Albert Henry Ntarmah and Emmanuel Kwaku Manu

This study has dealt with the gap in the literature, by probing the influence of innovation capability on business performance. This paper aims to test the moderation role…

Abstract

Purpose

This study has dealt with the gap in the literature, by probing the influence of innovation capability on business performance. This paper aims to test the moderation role of technological turbulence (TT) and market turbulence (MT) on the relationship between innovation capability (IC) and business performance (BP).

Design/methodology/approach

The study used a quantitative survey and a sample size of 579 departmental heads. Branch managers and permanent staff from the Greater Accra, Ashanti and Western Region in the Ghana telecommunication sector. The obtained data was analysed through the STATA 15.0 and AMOS statistical software package.

Findings

The empirical results from multiple linear regressions revealed that product/service innovation, process innovation, marketing innovation and administrative innovation had positive effects on business performance. The outcome of the moderation analysis further shown that technological turbulence positively moderates the relationship that existed between the various constructs of innovation capability and business performance indicating that technological turbulence significantly strengthens the relationship between these variables. On the contrary, market turbulence significantly weakens the relationship between the various innovation capability constructs and business performance.

Research limitations/implications

Although this research has made significant contributions to both theory and practice, there are certainly some limitations and future research directions that need to be considered to appropriately position the study findings. Firstly, because of the limited sample size (579), further testing of these constructs needs to be carried out in future research using alternative data. Related to this, it would be prudent if the instruments and models developed in this research were tested in different industry contexts. Also, because the Ghana telecommunication sector is made up of foreign companies, comparative research could be conducted to compare the IC and performance of Ghana and the other countries where these companies operate. Indeed, analyses of IC and BP associated with the same companies in different countries may prove to be very beneficial in the global context. Secondly, this research used only TT and MT to test the moderating effect of ET on the association of IC with BP. Future research can include competition intensity which may change or confirm the outcome of these studies. Thirdly, only qualitative data were used for the measurement of IC and the level of BP. Therefore, future research could use quantitative or both qualitative and quantitative data to confirm if there will be significant differences in the results obtained.

Practical implications

Literature has examined the moderation effect of ET on different variables and relationships in different organizational settings. This study has tried to analyse the moderating effect of ET on the relationship of IC with BP. The outcomes of this study are similar to the previous research studies mentioned above, however, limited studies have been conducted on IC and its relationship with BP in the context of ET especially in the most vibrant sector of Ghana’s economy. These findings are very innovative and contribute enormously to literature and knowledge by indicating which moderating ET positively and significantly strengthens and the type which weakens the existing relationship between IC and BP within the Ghanaian telecommunication sector which no researcher has conducted. These findings will go a long way by aiding the players in this sector to tauten their IC wings to achieve resilient performance around the globe.

Social implications

This will also contribute to the growth of Ghana’s economy as sources of revenue and employment. Additionally, the results obtained from this study will prompt managers to make more informed and effective decisions regarding innovation activities and the environments in which they operate.

Originality/value

This paper adds knowledge and literature to the existing ones. It is a new development in the research field of Ghana. This is the first journal this study has been submitted.

Details

International Journal of Innovation Science, vol. 13 no. 4
Type: Research Article
ISSN: 1757-2223

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Article
Publication date: 11 February 2021

Guichen Zhang, Heng Peng, Hongtao Zhang, Juzhen Tang and Yinghua Liu

The safety assessment of engineering structures under repeated variable dynamic loads such as seismic and wind loads can be considered as a dynamic shakedown problem. This…

Abstract

Purpose

The safety assessment of engineering structures under repeated variable dynamic loads such as seismic and wind loads can be considered as a dynamic shakedown problem. This paper aims to extend the stress compensation method (SCM) to perform lower bound dynamic shakedown analysis of engineering structures and a double-closed-loop iterative algorithm is proposed to solve the shakedown load.

Design/methodology/approach

The construction of the dynamic load vertexes is carried out to represent the loading domain of a structure under both dynamic and quasi-static load. The SCM is extended to perform lower bound dynamic shakedown analysis of engineering structures, which constructs the self-equilibrium stress field by a series of direct iteration computations. The self-equilibrium stress field is not only related to the amplitude of the repeated variable load but also related to its frequency. A novel double-closed-loop iterative algorithm is presented to calculate the dynamic shakedown load multiplier. The inner-loop iteration is to construct the self-equilibrated residual stress field based on the certain shakedown load multiplier. The outer-loop iteration is to update the dynamic shakedown load multiplier. With different combinations of dynamic load vertexes, a dynamic shakedown load domain could be obtained.

Findings

Three-dimensional examples are presented to verify the applicability and accuracy of the SCM in dynamic shakedown analysis. The example of cantilever beam under harmonic dynamic load with different frequency shows the validity of the dynamic load vertex construction method. The shakedown domain of the elbow structure varies with the frequency under the dynamic approach. When the frequency is around the resonance frequency of the structure, the area of shakedown domain would be significantly reduced.

Research limitations/implications

In this study, the dynamical response of structure is treated as perfect elastoplastic. The current analysis does not account for effects such as large deformation, stochastic external load and nonlinear vibration conditions which will inevitably be encountered and affect the load capacity.

Originality/value

This study provides a direct method for the dynamical shakedown analysis of engineering structures under repeated variable dynamic load.

Details

Engineering Computations, vol. 38 no. 7
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 1 October 2006

Jih‐Hsin Tang and Heng‐Li Yang

To explore the relationship between emergent user roles and perceived importance of user requirements in a social‐oriented community.

Abstract

Purpose

To explore the relationship between emergent user roles and perceived importance of user requirements in a social‐oriented community.

Design/methodology/approach

A field study was designed to uncover hidden online social networks, and to elicit and rate user requirements.

Findings

User roles might have an impact on their perceptions of requirements. The study showed that significant differences of perceptual requirements on regulation and links exist across user roles.

Research limitations/implications

Only a small‐sized online community (approximately 300 members) participated in this study. One‐quarter of the population filled out the online survey.

Practical implications

Online community builders should invite a handful of different user roles to participate in the design and evolutionary processes of information systems.

Originality/value

The paper challenges popular views about the design of online communities.

Details

Library Review, vol. 55 no. 8
Type: Research Article
ISSN: 0024-2535

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Article
Publication date: 8 August 2019

Xie-Fei Ding, Lin Zhan, Hui-Feng Xi and Heng Xiao

A direct and unified approach is proposed toward simultaneously simulating large strain elastic behaviors of gellan gels with different gellan polymer concentrations. The…

Abstract

Purpose

A direct and unified approach is proposed toward simultaneously simulating large strain elastic behaviors of gellan gels with different gellan polymer concentrations. The purpose of this paper is to construct an elastic potential with certain parameters of direct physical meanings, based on well-designed invariants of Hencky’s logarithmic strain.

Design/methodology/approach

For each given value of the concentration, the values of the parameters incorporated may be determined in the sense of achieving accurate agreement with large strain uniaxial extension and compression data. By means of a new interpolating technique, each parameter as a function of the concentration is then obtained from a given set of parameter values for certain concentration values.

Findings

Then, the effects of gellan polymer concentrations on large strain elastic behaviors of gellan gels are studied in demonstrating how each parameter relies on the concentration. Plane-strain (simple shear) responses are also presented for gellan gels with different polymer concentrations.

Originality/value

A direct, unified approach was proposed toward achieving a simultaneous simulation of large elastic strain behaviors of gellan gels for different gellan polymer concentrations. Each parameter incorporated in the proposed elastic potential will be derived as a function of the polymer concentration in an explicit form, in the very sense of simultaneously simulating large strain data for different concentrations.

Details

Multidiscipline Modeling in Materials and Structures, vol. 15 no. 5
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 3 October 2016

Hui-Wen Vivian Tang and Tzu-chin Rojoice Chou

The purpose of this paper is to evaluate the forecasting performance of grey prediction models on educational attainment vis-à-vis that of exponential smoothing combined…

Abstract

Purpose

The purpose of this paper is to evaluate the forecasting performance of grey prediction models on educational attainment vis-à-vis that of exponential smoothing combined with multiple linear regression employed by the National Center for Education Statistics (NCES).

Design/methodology/approach

An out-of-sample forecasting experiment was carried out to compare the forecasting performances on educational attainments among GM(1,1), GM(1,1) rolling, FGM(1,1) derived from the grey system theory and exponential smoothing prediction combined with multivariate regression. The predictive power of each model was measured based on MAD, MAPE, RMSE and simple F-test of equal variance.

Findings

The forecasting efficiency evaluated by MAD, MAPE, RMSE and simple F-test of equal variance revealed that the GM(1,1) rolling model displays promise for use in forecasting educational attainment.

Research limitations/implications

Since the possible inadequacy of MAD, MAPE, RMSE and F-type test of equal variance was documented in the literature, further large-scale forecasting comparison studies may be done to test the prediction powers of grey prediction and its competing out-of-sample forecasts by other alternative measures of accuracy.

Practical implications

The findings of this study would be useful for NCES and professional forecasters who are expected to provide government authorities and education policy makers with accurate information for planning future policy directions and optimizing decision-making.

Originality/value

As a continuing effort to evaluate the forecasting efficiency of grey prediction models, the present study provided accumulated evidence for the predictive power of grey prediction on short-term forecasts of educational statistics.

Details

Kybernetes, vol. 45 no. 9
Type: Research Article
ISSN: 0368-492X

Keywords

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Book part
Publication date: 11 June 2021

Pemika Rochanapon, Michelle Stankovic, Matthew Barber, Billy Sung and Sean Lee

Online shopping cart abandonment presents a major problem for online fashion apparel retailers today. This exploratory research aims to validate scales that measure…

Abstract

Online shopping cart abandonment presents a major problem for online fashion apparel retailers today. This exploratory research aims to validate scales that measure antecedents of online shopping cart abandonment (OSCA) and examine how these reasons contribute to OSCA behaviour. The findings indicated that the eight different reasons (financial reasons, organisational tool, time pressure, intangibility, privacy issues, aesthetic design, social influences and entertainment factors) that drive OSCA are distinct and account for unique variance in the model, validating the measures. Also, the findings revealed that financial reasons and using the cart as an organisational tool are the top two reasons why consumers abandon their carts. This study provides researchers with a better theoretical understanding of the reasons why consumers abandon their online shopping carts. It validates the various reasons why consumers abandon their shopping carts and provides valuable managerial insights on how online marketers may enhance the translation of online browsing behaviour into actual purchases.

Details

Developing Digital Marketing
Type: Book
ISBN: 978-1-80071-349-9

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Article
Publication date: 1 June 2005

Heng‐Li Yang and Jih‐Hsin Tang

To investigate the relationship between key users (defined as their influence) in “information”, “purchase”, “communication” or “entertainment” networks, and the number of…

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2079

Abstract

Purpose

To investigate the relationship between key users (defined as their influence) in “information”, “purchase”, “communication” or “entertainment” networks, and the number of elicited requirements in web‐based information systems (WIS).

Design/methodology/approach

A lab experiment was designed and conducted to investigate the relationship between college students' elicited requirements for two WIS cases and their social networks.

Findings

The individual centrality in “information” networks has a significant positive relationship with the numbers of elicited “information” requirements and total requirements; however, the individual centrality in other social networks has no significant relationship with the number of the elicited requirements.

Research limitations/implications

The requirements collected from “key users” may account for most requirements, which is similar to the results predicted by Pareto's rule.

Practical implications

The origin of a WIS depends on a few influential users. These key users possess more power than others, and they define not only the “requirements” of the site but also its content or knowledge. The WIS designers may take advantage of this fact.

Originality/value

This paper fills the information requirement elicitation gap, while transferring the conventional IS development experiences to WIS.

Details

Industrial Management & Data Systems, vol. 105 no. 5
Type: Research Article
ISSN: 0263-5577

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Article
Publication date: 1 December 2002

Heng Li, Sandy Tang and Peter E.D. Love

Large‐scale projects involve many organizations coming from different geographical locations. The task of coordination and information sharing/exchange therefore becomes…

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1112

Abstract

Large‐scale projects involve many organizations coming from different geographical locations. The task of coordination and information sharing/exchange therefore becomes very challenging. Recently, Web‐based project management systems have been developed and applied in construction project management. Presents an intelligent Web‐based project management system, called VHBuild.com, developed by the authors, which integrates project management, knowledge management and artificial intelligence technologies. First, discusses the advantages of using VHBuild in project management, which is followed by an in‐depth discussion on a number of artificial intelligence techniques. With the intelligent supports embedded in the VHBuild, the decision‐making procedure will no longer appear to be a blind‐searching process and project managers will not only be better informed, but also be given more efficient tools in tackling problems in managing large scale projects.

Details

Internet Research, vol. 12 no. 5
Type: Research Article
ISSN: 1066-2243

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Article
Publication date: 25 January 2011

Heng Liu, Wei Su and Fu‐tang Zhang

This paper aims to provide detailed information on the dynamic model and closed‐loop control theory for a resonant accelerometer based on electrostatic stiffness, which is…

Abstract

Purpose

This paper aims to provide detailed information on the dynamic model and closed‐loop control theory for a resonant accelerometer based on electrostatic stiffness, which is important for the design of this type of resonant accelerometer.

Design/methodology/approach

After analysing the principles of the resonant accelerometer based on electrostatic stiffness, a dynamic model was built. According to the requirements of the closed‐loop control, the control equations based on phase‐locked technology were also built for the system. With the help of the averaging method, the system behaviour was analysed, and the equilibrium for the vibration amplitude was achieved.

Findings

The theoretical analysis and simulation show that integral gain is critical to system stability. When it is larger than the critical point, the system stable time is shorter, but the frequency‐tracking process fluctuates; if it is smaller than the critical point, the system stable time is longer, and the frequency‐tracking process stabilizes a resonant accelerometer was fabricated with a bulk‐silicon‐dissolved process. With the above conclusions, the accelerometer was driven and tested with a sensitivity of 47 Hz/g for a single vibration beam.

Originality/value

The dynamic model and the control theory for the resonant accelerometer based on electrostatic stiffness were presented in this paper. The simulation and experiment results agree well with the theoretical analysis.

Details

Sensor Review, vol. 31 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

Content available
Article
Publication date: 13 November 2007

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265

Abstract

Details

Disaster Prevention and Management: An International Journal, vol. 16 no. 5
Type: Research Article
ISSN: 0965-3562

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