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Article
Publication date: 5 December 2017

Yang Zi Kang, Chi Feng, Liang Zhi Liu, Shan Gao and Yan Cang

Hydroelectric power is widely used because it is environmental friendly, renewable and green. The cavitation is an inevitable phenomenon during the operation of hydro…

Abstract

Purpose

Hydroelectric power is widely used because it is environmental friendly, renewable and green. The cavitation is an inevitable phenomenon during the operation of hydro turbine, which is related to the efficiency and service life of the unit. This paper aims to discriminate the phenomenon of the incipient cavitation, prevent the early destruction and avoid the irreversible damage to hydro turbine.

Design/methodology/approach

The paper tries to find out the characteristics of cavitation entirely through a variety of features. The method comprises collection of the signals using a hydrophone, acceleration sensor and acoustic emission sensor; analyzing cavitation signal by using the way of wavelet time-frequency, peak factor and power spectral density; and comparing the different wavelet basis for analyzing signals and find the most suitable one.

Findings

The analyzed results show that the wavelet basis of morlet is more suitable for the cavitation signals. The hydrophone can distinguish the different operating conditions and discriminate the difference between the phenomenon of incipient cavitation and the other state of cavitation. The results show that when the hydrophone and acceleration sensors are used, the accuracy rate goes up to 75 per cent, which meets the requirements for the detection for incipient cavitation.

Originality/value

This paper focuses on finding the best sensor to discriminate the operating state of incipient cavitation to prevent early destruction.

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Article
Publication date: 8 June 2020

Christopher von Koch and Magnus Willesson

The purpose of this paper is to review the literature that measures the concept of firms' information environment (IE) with focus on the validity of proxies used to measure IE.

Abstract

Purpose

The purpose of this paper is to review the literature that measures the concept of firms' information environment (IE) with focus on the validity of proxies used to measure IE.

Design/methodology/approach

The paper reviews the IE literature using theoretically based categories and analyzes the contextual meaning and use of IE proxies. The review is based on a selection of 284 research articles from 51 journals between 2000 and 2018. A total of 37 different proxy measures of IE are found and analyzed with respect to causality based on categories and the use of IE variables as dependent, independent and control variables.

Findings

The study indicates that the IE measures are heterogeneous and there is a lack of consensus regarding their use. The different conditions used to study IE explain part, but far from all, of this heterogeneity. Furthermore, we find that the use of IE measures is only briefly discussed or motivated among the studies in the sample. These findings suggest a necessary discussion about causality in the use of IE as dependent, independent or control variables.

Originality/value

This study contains new and significant information on IE and IE proxy measures. It provides an extensive literature review and provides a novel typology to analyze IE.

Details

Managerial Finance, vol. 46 no. 11
Type: Research Article
ISSN: 0307-4358

Keywords

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Article
Publication date: 29 November 2018

Ala Shqairat and Balan Sundarakani

The purpose of this paper is to investigate the agility of oil and gas value chains in the United Arab Emirates (UAE) and to understand the impact of implementing supply…

Abstract

Purpose

The purpose of this paper is to investigate the agility of oil and gas value chains in the United Arab Emirates (UAE) and to understand the impact of implementing supply disruption (SD) strategies, outsourcing strategies (OS) and management strategies (MS) on oil and gas value chain agility (VCA). The results can support the oil and gas industry across the UAE to build resilience in the value chain.

Design/methodology/approach

The research design consists of a comprehensive literature review, followed by questionnaire-based survey responses of 106 participants and comprehensive statistical analysis, thus validate the developed theoretical framework and contribute to both practical and methodological approaches.

Findings

The findings indicate that oil and gas value chain in the UAE has moderate a significant degree of SD, when OS in place that are synchronized with the overall MS. Among the hypotheses developed, two were accepted thus warranting both SD strategies (r=+0.432) and MS (r= +0.457) found to have a positive moderate effect on VCA. The third hypothesis was rejected by revealing OS (r=+0.387) found to have a positive moderate relationship with VCA. Therefore, implementation of all three strategies has a positive moderate effect on the agility of the value chain and, therefore, supports to sustain competitive position.

Research limitations/implications

Some of the limitations of this research include the geographic coverage of the study region and other methodological limitation.

Practical implications

The research provides guidance for oil and gas supply chain managers to better understand the critical factors that impact and determine VCA. The paper also describes relevant strategies that should be taken into consideration by these managers in order to build their agile value chains.

Social implications

The research contributes to the social dimensions of supply chain sustainability of how resilient is the oil and gas value chain during uncertain conditions, so that it can respond to uncertain changes in order to contribute to corporate social responsibility.

Originality/value

This research is the first of its kind in the UAE region to assess the link between dimensions of agile value chain, OS, SD strategies and MS primarily from the Emirates of Abu Dhabi and Dubai.

Details

Benchmarking: An International Journal, vol. 25 no. 9
Type: Research Article
ISSN: 1463-5771

Keywords

Content available
Book part
Publication date: 6 August 2020

Mert Gürlek

Abstract

Details

Tech Development through HRM
Type: Book
ISBN: 978-1-80043-312-0

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Article
Publication date: 12 August 2021

Guanghui Qiao, Liu Ding, Linlin Zhang and Huili Yan

The purpose of this paper is to reveal the knowledge evolution process, research hotspots and future trends in the accessible tourism research literature from 2008 to 2020.

Abstract

Purpose

The purpose of this paper is to reveal the knowledge evolution process, research hotspots and future trends in the accessible tourism research literature from 2008 to 2020.

Design/methodology/approach

A total of 213 articles on accessible tourism were selected from the core collection database of Web of Science (WoS) and analyzed using CiteSpace.

Findings

Over the 13-year period between 2008 and 2020, an increasing number of studies have been published concerning accessible tourism, but the overall base is still small. The research content mainly includes six modules. Among institutions, the University of Technology Sydney has published the largest number of papers. Cooperation among countries involves the USA, the United Kingdom, Australia, Portugal and China. Tourism Management is the leading journal for disseminating research on accessible tourism. Definition of “Accessible tourism” and the different scope of this phenomenon are re-discussed. In recent years, “experience” and “participation” have become the “new favorites” in accessible tourism research, which could reveal insights into future research directions.

Research limitations/implications

The sampling frame was defined in terms of the WoS database and even though this is an important database for global academic information, in the big data era, the authors may have to integrate information from multiple sources to comprehensively reveal and understand knowledge maps. Second, because of the operational constraints of the CiteSpace software, the authors only selected outputs published in peer-reviewed journals, excluding other published works, such as books and conference papers. Finally, because of the language restrictions of the authors, this research is limited to journals published in the English language.

Practical implications

Practically, the results of this study made a conclusion of accessible tourism research so that the researchers can easily know what has currently been done and what future research can do. Tourism managers can also understand the demands and the constraints of tourism for the people who have barriers to travel. They can supply more specific products for the accessible tourism and further promote the construction of barrier-free travel environments.

Originality/value

This paper unifies the literature on senior tourism and people with disabilities tourism, and uses CiteSpace to construct data and network visualizations, including a burst and dynamic analysis for the period covered by the sample. Furthermore, this paper proposed a more diversified accessible tourism.

Details

Tourism Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1660-5373

Keywords

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Article
Publication date: 3 August 2021

Umar Farooq Sahibzada, Yan Xu, Gul Afshan and Roshi Khalid

The purpose of this paper is to investigate the associations among knowledge-oriented leadership (KOL), knowledge worker satisfaction (KWS), knowledge worker productivity…

Abstract

Purpose

The purpose of this paper is to investigate the associations among knowledge-oriented leadership (KOL), knowledge worker satisfaction (KWS), knowledge worker productivity (KWP) and organizational performance (OP). The study hypothesizes that the explicit mixtures, i.e. KOL, KWS and KWP can improve OP.

Design/methodology/approach

The study sample was composed of 248 academicians and management staff of higher educational institutes (HEIs). The relations were tested through Smart PLS 3.2.9. The fuzzy-set qualitative comparative analysis (fsQCA) method was also used for examining configurational paths.

Findings

The study found a substantial direct influence of KOL on OP. The findings revealed that KOL significantly affects KWS, and KWS enhances KWP, which ultimately improves the OP of HEIs. Grounded on the fsQCA, the outcomes exposed configurational trails to the enhanced OP.

Originality/value

There is scarce of studies that determine the connection of KOL, KWS, KWP and OP. This is one of the preliminary studies that examine the association of KOL, KWS, KWP and OP in HEIs. From a procedural viewpoint, the research subsidizes by merging symmetric and asymmetric tools to further understand structural issues. The use of fsQCA discloses numerous paths to improve OP and renders asymmetric relations. fsQCA also aids to comprehend the relations that might not be directly understandable via symmetric means.

Details

Business Process Management Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1463-7154

Keywords

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Article
Publication date: 28 June 2021

Umar Farooq Sahibzada, Khawaja Fawad Latif and Yan Xu

This research examines how knowledge management (KM) enablers, i.e. trust, knowledge-oriented leadership, environmental uncertainty and KM processes will impact knowledge…

Abstract

Purpose

This research examines how knowledge management (KM) enablers, i.e. trust, knowledge-oriented leadership, environmental uncertainty and KM processes will impact knowledge worker productivity (KWP). Various formations of the KM enablers and KM processes are also examined within terms of their abilities to enhance KWP.

Design/methodology/approach

The research sample is taken from 248 faculty and administrators of Pakistan Higher Educational Institutes (HEIs). The relationships are tested via SmartPLS and fsQCA 3.0.

Findings

The results show that there are significant impacts of the KM enablers on KM processes and KWP. Constructed upon fuzzy qualitative comparative analysis (fsQCA), the outcomes exposed various combinations, which can be identified to enhance KWP.

Originality/value

The research supports to methodology by merging two methods to advance the understanding of institutional concerns about workers' productivity. The asymmetric method assists to distinguish the connections that might not be directly clear via traditional symmetric approaches. By uncovering asymmetric relationships, the study identifies a variety of approaches that can be used by HEIs to improve their KWP.

Details

Journal of Enterprise Information Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-0398

Keywords

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Article
Publication date: 28 January 2020

Xiang Li, Zhijun Li and Zihao Wen

This paper aims to introduce a novel 4D hyperchaotic fractional-order system which can produce one-to-four-wing hyperchaotic attractors. In the study of chaotic systems…

Abstract

Purpose

This paper aims to introduce a novel 4D hyperchaotic fractional-order system which can produce one-to-four-wing hyperchaotic attractors. In the study of chaotic systems with variable-wing attractors, although some chaotic systems can generate one-to-four-wing attractors, none of them are hyperchaotic attractors, which is incomplete for the dynamic characteristics of chaotic systems.

Design/methodology/approach

A novel 4D fractional-order hyperchaotic system is proposed based on the classical three-dimensional Lü system. The complex and abundant dynamic behaviors of the fractional-order system are analyzed by phase diagrams, bifurcation diagrams and the corresponding Lyapunov exponents. In addition, SE and C0 algorithms are used to analyze the complexity of the fractional-order system. Then, the influence of order q on the system is also investigated. Finally, the circuit is implemented using physical components.

Findings

The most particular interest is that the system can generate one-to-four-wing hyperchaotic attractors with only one parameter variation. Then, the hardware circuit experimental results tally with the numerical simulations, which proves the validity and feasibility of the fractional-order hyperchaotic system. Besides, under different initial conditions, coexisting attractors can be obtained by changing the parameter d or the order q. Then, the complexity analysis of the system shows that the fractional-order chaotic system has higher complexity than the corresponding integer-order chaotic system.

Originality/value

The circuit structure of the fractional-order hyperchaotic system is simple and easy to implement, and one-to-four-wing hyperchaotic attractors can be observed in the circuit. To the best of the knowledge, this unique phenomenon has not been reported in any literature. It is of great reference value to analysis and circuit realization of fractional-order chaotic systems.

Details

Circuit World, vol. 46 no. 2
Type: Research Article
ISSN: 0305-6120

Keywords

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Article
Publication date: 3 September 2020

Randy Kurniawan, Dyah Budiastuti, Mohammad Hamsal and Wibowo Kosasih

This study aims to examine the effect of networking capability through market orientation and business process agility on the firm performance of medium and large…

Abstract

Purpose

This study aims to examine the effect of networking capability through market orientation and business process agility on the firm performance of medium and large telecommunication technology providers in Indonesia.

Design/methodology/approach

Research data was collected from the executive management of telecommunication technology providers in Indonesia via a questionnaire survey to obtain 150 valid questionnaires for analysis. This study analysed the overall model fit and hypotheses through confirmatory factor analysis and structural equation modelling.

Findings

The results reveal that networking capability has a positive and significant effect on market orientation. However, networking capability does not have a significant direct effect on business process agility. The results also indicate that market orientation does not have a significant direct effect on firm performance but through the mediating role of business process agility.

Practical implications

The findings provide a practical foundation for the organisation’s networking capability to be framed by market orientation and business process agility to enhance firm performance.

Originality/value

The results indicate that market orientation mediates the relationship between networking capability and business process agility. The findings also reveal that business process agility mediates the relationship between market orientation and firm performance. This study also reconceptualises market orientation to embody the inter-partner coordination dimension and reconceptualise business process agility to embody business partner switching capability.

Details

Journal of Business & Industrial Marketing, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0885-8624

Keywords

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Article
Publication date: 29 January 2021

Adriana Silva, Susana Jorge and Lúcia Lima Rodrigues

Existing research has concluded that accounting quality is influenced not only by the quality of accounting standards, but also by enforcement systems. Therefore…

Abstract

Purpose

Existing research has concluded that accounting quality is influenced not only by the quality of accounting standards, but also by enforcement systems. Therefore, enforcement is one of the key factors for ensuring International Financial Reporting Standards’ (IFRS) compliance and achieving accounting quality. However, one still does not know what has been studied about this relationship in scientific literature. Accordingly, the purpose of this paper is to identify, recap and evaluate the current state of research on the relationship between IFRS enforcement and accounting quality, to provide a critical overview of publications in this field and to identify future areas of interest.

Design/methodology/approach

Supported by a structured literature review, this paper fills in a research gap by conducting a scientometric analysis of papers on the relationship between IFRS enforcement and accounting quality construed in a broad sense. It reviews papers published between 2006 and 2019 selected from the Web of Science database, particularly analyzing main journals, authors, geographic areas of study, methods used, specific topics explored and future lines of research to be developed.

Findings

Main findings show a shortage of studies analyzing IFRS enforcement practices in individual countries and, in turn, the impact these practices may have on the accounting quality. This gap calls for further research to know the effectiveness of the IFRS-related enforcement mechanisms.

Originality/value

To the best of the authors’ knowledge, no previous scientometric studies focused on the enforcement of IFRS and accounting quality. This study fills this research gap and improves the understanding about what has been published on the topic, also proposing an agenda for future research that can help regulators to adjust policies for the implementation and enforcement of IFRS.

Details

International Journal of Accounting & Information Management, vol. 29 no. 3
Type: Research Article
ISSN: 1834-7649

Keywords

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