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Article
Publication date: 2 January 2018

Yong Xie, Pan Liu and Guoping Cai

The purpose of this paper is to present an on-orbit frequency identification method for spacecraft directly using attitude maneuver data. Natural frequency of flexible solar…

Abstract

Purpose

The purpose of this paper is to present an on-orbit frequency identification method for spacecraft directly using attitude maneuver data. Natural frequency of flexible solar arrays plays an important role in attitude control design of spacecraft with solar arrays, and its precision will directly affect the accuracy of attitude maneuver. However, when the flexibility of the solar arrays is large, because of air damping, gravity effect etc., the frequency obtained by ground test shows great error compared with the on-orbit real value. One solution to this problem is to conduct on-orbit identification during which proper identification methods are used to obtain the parameters of interest based on the real on-orbit data of spacecraft.

Design/methodology/approach

The observer/Kalman filter identification and eigensystem realization algorithm are used as identification methods, and the attitude maneuver controller is designed using the rigid-body dynamics method.

Findings

Two conclusions are drawn in this paper according to results of numerical simulations. The first one is that the attitude controller based on the rigid-body dynamics method is effective in attitude maneuver of the spacecraft. The second one is that the on-orbit parameter identification can be directly achieved by using attitude maneuver data of spacecraft without adding additional missions.

Practical implications

Based on the methods proposed in this paper, it is convenient to obtain the natural frequencies of the spacecraft using the data of the attitude maneuver, which may greatly reduce the cost of on-orbit identification test.

Originality/value

The way of obtaining natural frequencies based on attitude maneuver data of spacecraft provides high originality and value for practical application.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 1
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 15 April 2024

Shiwangi Singh, Sanjay Dhir, Vellupillai Mukunda Das and Anuj Sharma

While extant literature explores the influence of institutions on the national innovation system (NIS), most research has either focused on specific institutional aspects or…

Abstract

Purpose

While extant literature explores the influence of institutions on the national innovation system (NIS), most research has either focused on specific institutional aspects or treated institutions as a unified entity. This study aims to examine the effect of various institutional factors on a country’s NIS.

Design/methodology/approach

The conceptual model was empirically validated using regression analysis. The study sample comprised a total of 84 countries.

Findings

This study identifies and empirically validates a comprehensive set of institutional factors. It also highlights the significant institutional factors (including political stability, government effectiveness, ease of resolving insolvency and the rule of law) that can help improve a country’s NIS.

Originality/value

The research provides practical implications for organizations and policymakers seeking to understand and foster an innovative culture within the NIS. Policymakers are encouraged to develop a nurturing environment within the NIS by focusing on significant institutional factors. Organizations are encouraged to closely monitor developments in the NIS of a country to make informed strategic decisions at the business, corporate and international levels.

Details

Journal of Science and Technology Policy Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2053-4620

Keywords

Article
Publication date: 26 February 2024

Ibraheem Saleh Al Koliby, Nurul Aini Binti Mehat, Abdullah Kaid Al-Swidi and Mohammed A. Al-Hakimi

By combining relevant literature and using quantitative methodology, this study aims to look into the role of knowledge management (KM) as a mediator between entrepreneurial…

Abstract

Purpose

By combining relevant literature and using quantitative methodology, this study aims to look into the role of knowledge management (KM) as a mediator between entrepreneurial competencies (ECs) and the sustainable performance (SP) of manufacturing small and medium-sized enterprises (SMEs).

Design/methodology/approach

The relationships in the proposed model were examined with data collected from 122 Malaysian SMEs using a cross-sectional technique and a standardized questionnaire and analyzed using structural equation modeling path analysis.

Findings

According to the findings, ECs have a positive and considerable impact on KM as well as the SP of manufacturing SMEs. Importantly, KM partially mediates between ECs and the SP of manufacturing SMEs.

Research limitations/implications

This research provides a theoretical contribution through the integration of ECs, KM and SP within a unified framework that takes into account the viewpoints of the resource-based view, the knowledge-based view and the triple bottom line. The results corroborate that ECs directly affect SP and indirectly through KM. Nevertheless, the study’s use of cross-sectional survey data makes it impossible to draw conclusions about causes. This is because ECs, KM and SP all have effects on time that this empirical framework cannot account for.

Practical implications

The findings of this research provide valuable insights for managers and decision-makers in SMEs, who are expected to show an increasing interest in adopting KM processes into their companies through which ECs can be translated into SP.

Social implications

By applying the proposed framework, SMEs can conduct their activities in ways that do not harm environmental and societal well-being while achieving appropriate economic performance at the same time.

Originality/value

As a result, the findings of this study can add to the literature on ECs and KM, as well as boost the chances of SME sustainability. Directions for future research are also provided in relation to a better understanding of the factors affecting the SP of SMEs.

Details

The Bottom Line, vol. 37 no. 1
Type: Research Article
ISSN: 0888-045X

Keywords

Article
Publication date: 17 November 2022

Ibraheem Saleh Al Koliby, Norazah Mohd Suki and Haim Hilman Abdullah

This study aims to examine the impact of knowledge acquisition and dissemination on the sustainable performance of small- and medium-sized enterprises (SMEs). Additionally, the…

Abstract

Purpose

This study aims to examine the impact of knowledge acquisition and dissemination on the sustainable performance of small- and medium-sized enterprises (SMEs). Additionally, the mediating role of knowledge application in this relationship is investigated.

Design/methodology/approach

Data collected from 428 manufacturing SMEs in Malaysia were analyzed using the partial least squares structural equation modeling approach.

Findings

The results reveal that knowledge acquisition significantly impacts the sustainable performance of manufacturing SMEs, and knowledge application partially mediates this impact. Cutting-edge knowledge from within or outside the organization enables a deeper understanding of information regarding new products/services, a list of competing suppliers, consumer preferences and so on.

Research limitations/implications

This study combined the knowledge-based view theory and the triple bottom line framework into a unified conceptual framework and examined the impact of knowledge acquisition and dissemination on manufacturing SMEs’ sustainable performance as well as the mediating role of knowledge application on manufacturing SMEs’ sustainable performance.

Practical implications

Manufacturing SMEs should emphasize knowledge application in business operations and encourage employees to develop and enhance their knowledge acquisition and dissemination to leverage knowledge in ways that enhance business operations, produce new products and generate new knowledge assets.

Originality/value

This study is unique in that it highlights the partially mediated effects of knowledge application on the linkages between knowledge acquisition and manufacturing SMEs’ sustainable performance and the fully mediated effects of knowledge application on the association between knowledge dissemination and sustainable performance of manufacturing SMEs.

Article
Publication date: 24 June 2022

Ibraheem Saleh Mokbel Al Koliby, Haim Hilman Abdullah and Norazah Mohd Suki

The purpose of this study is twofold: to examine the impact of entrepreneurial competencies and innovation on manufacturing small and medium-sized enterprises' (SMEs) sustainable…

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Abstract

Purpose

The purpose of this study is twofold: to examine the impact of entrepreneurial competencies and innovation on manufacturing small and medium-sized enterprises' (SMEs) sustainable performance and to explore the role of innovation as a mediator on the relationship between entrepreneurial competencies and manufacturing SMEs' sustainable performance.

Design/methodology/approach

Data collected from manufacturing SMEs in Malaysia were analysed via the partial least squares-structural equation modelling (PLS-SEM) approach.

Findings

The results reveal that entrepreneurial competencies play a robust and noteworthy role in promoting innovation and the sustainable performance of manufacturing SMEs, respectively. Further, innovation has a partially mediated effect on the link between entrepreneurial competencies and manufacturing SMEs' sustainable performance. Manufacturing SMEs' aspirations to be the first to market with new products are reflected in these SMEs' implementation of positive entrepreneurial competencies or capabilities which enable them to scan the environment to identify high-quality business opportunities and respond through these SMEs' Research and Development (R&D) activities to create products that provide real benefit to customers' needs. Hence, these SME's seize the market opportunities.

Practical implications

Manufacturing SMEs' sustainable performance should be strengthened by linking entrepreneurial competencies with innovation to nurture greater agility to respond quickly to change and market demands. These SMEs should conduct tactical meetings on a regular basis to discuss current projects and assess critical indicators, as well as to identify and test fresh ideas for innovation and new business ventures in order to achieve sustainable performance in challenging business environments.

Originality/value

By applying the resource-based view (RBV) theory and the triple bottom line (TBL) framework into a single framework, this study highlights the role of innovation as a meaningful mediator between entrepreneurial competencies and manufacturing SMEs' sustainable performance. As exploration of this relationship has been very limited, the study makes a novel contribution to the extant literature.

Details

Asia-Pacific Journal of Business Administration, vol. 16 no. 1
Type: Research Article
ISSN: 1757-4323

Keywords

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