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Article
Publication date: 2 February 2023

Chunhua Qi, Guoliang Ma, Yanqing Zhang, Tianqi Wang, Erming Rui, Qiang Jiao, Chaoming Liu, Mingxue Huo and Guofu Zhai

The purpose of this paper is to present a transition detector (TD)-based radiation hardened flip-flop (TDRH-FF) for single event upset (SEU).

146

Abstract

Purpose

The purpose of this paper is to present a transition detector (TD)-based radiation hardened flip-flop (TDRH-FF) for single event upset (SEU).

Design/methodology/approach

With SEU recovery and single event transient (SET) detector mechanism, the TDRH-FF can tolerate SEU during hold mode and generate a warning signal for architecture-level recovery during transport mode when input signal contains SET. Evaluation results show that the TDRH-FF outperforms comparable comprehensive performance.

Findings

Simulation results show that 1) the mean pulse width of the correction glitches (at full width half maximum) of TDRH-FF is less than 10 ps; 2) the area overhead of TDRH-FF is similar to the EVFERST-FF, BISER-FF and DNURHL-FF; 3) TDRH-FF has the same average power consumption as SETTOF, and moderate PDP and Ps values among these compared FFs.

Originality/value

In this paper, a TD-based TDRH-FF is proposed to solve the problems in the previous design. And the main contributions of the proposed TDRH-FF are summarized: Minimum size transistors are used in the proposed TD which leads to a considerable decrease in area overheads and propagation delay (resulting in an ignorable correction glitch); and compared with other radiation hardened flip-flop, TDRH-FF outperforms comparable comprehensive performance.

Details

Microelectronics International, vol. 40 no. 2
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 5 February 2018

Fangwei Xie, Erming Ding, Rui Xuan, Xinxing Zhang, Yixian Feng and Jie Zhu

The purpose of this paper is to study the influence rules of geometric parameters on deformation of valve slices.

92

Abstract

Purpose

The purpose of this paper is to study the influence rules of geometric parameters on deformation of valve slices.

Design/methodology/approach

Based on the theory of flexural deformation of elastic thin slice, differential functions of deformation for both single and multi-slices are given and derived in detail. Furthermore, the effects of geometric dimensions on deformation are analyzed particularly by using Matlab/simulink.

Findings

The results indicated that the deformation decreases with the increment of fixed ring radius ra, slice thickness h, and its number n. Meanwhile, the deformation increases with a rise of slice radius rb, throttle position rk, the radius ratio λ1 and thickness ratio λ2 of slices.

Originality/value

This research can provide some theoretical supports for the parametric and optimal design of adjustable damping shock absorber.

Details

International Journal of Structural Integrity, vol. 9 no. 1
Type: Research Article
ISSN: 1757-9864

Keywords

Available. Open Access. Open Access
Article
Publication date: 31 October 2024

Christoph Wehrhahn and Patrick Velte

This paper aims to focus on the relationship between audit committees, external auditors and internal control systems (ICS) and strives to point out mutual influences between the…

960

Abstract

Purpose

This paper aims to focus on the relationship between audit committees, external auditors and internal control systems (ICS) and strives to point out mutual influences between the instances to provide an integrated perspective for firms’ multilateral monitoring mechanisms. Furthermore, this study emphasizes the incorporation of sustainability and fraud considerations into the traditional roles of audit committees and auditors.

Design/methodology/approach

This structured literature review is based on 71 empirical-quantitative studies published in high-quality journals between 2005 and 2022. Considering the classification of ICS into ICS quality and internal audit function, the studies are analyzed with regard to audit committees’ and external auditors’ characteristics, divided into incentives and competencies, as well as their mutual relationships.

Findings

This study highlights a dynamic trilateral network of relationships between monitoring authorities and primarily shows that audit committees equipped with adequate competencies generate a substitutive effect for external auditors by reducing their efforts, whereas ICS quality serves as a possible mediator in this network of relationships. The establishment of an integrative three-party coalition of competent and adequately incentivized monitoring parties is essential to guarantee sufficient and appropriate ICS and overall corporate governance quality.

Practical implications

The findings should prompt legislators and firms to ensure a deeper collaboration between audit committees, internal auditors and external auditors to generate synergy effects and economies of scale within the integrative monitoring process. Legislators should develop stricter requirements for competencies of audit committees and auditors. These should include a holistic triad of sustainability, fraud and digital expertise as well as mandatory forensic procedures performed by all monitoring bodies.

Originality/value

The authors contribute to prior research by highlighting the importance of an integrative three-party coalition of monitoring authorities to ensure corporate governance quality and to generate synergy effects within a dynamic multilateral monitoring process. Furthermore, the authors offer cutting-edge implications by stressing the need for consideration of sustainability and fraud aspects in the traditional work and profiles of audit committees and auditors.

Details

Journal of Financial Reporting and Accounting, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1985-2517

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Article
Publication date: 9 October 2007

Rui da Silva and Luciano Batista

The objective of this paper is to point out the potentialities of customer relationship management (CRM) in the building of government reputation by raising key aspects of…

4019

Abstract

Purpose

The objective of this paper is to point out the potentialities of customer relationship management (CRM) in the building of government reputation by raising key aspects of corporate reputation theory that can be strengthened by similar CRM strategic orientations and supported by the deployment of CRM solutions.

Design/methodology/approach

From a public sector perspective, the authors develop a comparative approach to corporate reputation and CRM premises, concepts, and practices. They draw aspects from both theories that can enable the building and management of corporate reputation in the public sector with the support of CRM solutions.

Findings

Challenging the popular criticism that most public agencies and departments are bureaucratic, slow, and incapable of taking immediate action, governments are striving to revert this negative image by adopting new business approaches and applying new information technologies to optimize their processes. In this context, CRM has a potential value to fulfil government needs to become more responsive to the public.

Practical implications

The considerations raised in this paper provide relevant issues for future research aimed at studying CRM and reputation in the government context. Public managers may benefit from the practical aspects and cases provided in this paper.

Originality/value

A theoretical link is developed between CRM and corporate reputation, bringing a new dimension to the matter. Many public managers are leading projects to adopt customer‐focused strategies without realizing they are also working on government reputation. An attempt is made to bring this awareness to the surface by linking some aspects of corporate reputation theory with CRM. Focusses on the public sector, which usually faces the problem of public cynicism.

Details

International Journal of Public Sector Management, vol. 20 no. 7
Type: Research Article
ISSN: 0951-3558

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Article
Publication date: 17 May 2024

Stratos Moschidis, George Drogalas, Evrikleia Chatzipetrou and Petros Lois

The present paper aims at the identification of the critical variables of risk-based auditing (RBA). The variables under examination are the internal audit (IA), the audit…

173

Abstract

Purpose

The present paper aims at the identification of the critical variables of risk-based auditing (RBA). The variables under examination are the internal audit (IA), the audit committee (AC) and the cooperation between the RBA and the stakeholders (audit committee, external auditors, internal auditors, board of directors, fraud investigators, chief risk manager) (COOP).

Design/methodology/approach

A questionnaire survey was conducted among 176 Greek companies. The questionnaires were addressed to accountants, internal auditors, managers, chief risk managers and the board of directors. A total of 96 questionnaires have been collected and analyzed. PLS-SEM modeling was used as a tool to test hypotheses and analyze the findings.

Findings

The results show that three variables, i.e. the internal audit, the audit committee and the RBA cooperation with stakeholders have a statistically significant and positive effect on risk-based auditing (RBA). Additionally, the existence of partial-complementary mediation of the internal audit in the audit committee-RBA interaction is confirmed.

Originality/value

This study is an original research that identifies the essential variables of risk-based auditing in Greek companies. It attempts to analyze the perceptions of all stakeholders in risk-based auditing, including the internal audit, the audit committee, etc. and is not restricted only on internal auditors. Furthermore, the analysis is conducted with PLS-SEM Modeling, which is an innovative tool of testing hypotheses and analyzing results.

Details

EuroMed Journal of Business, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1450-2194

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Book part
Publication date: 29 December 2016

Roland Füss, Dieter G. Kaiser and Felix Schindler

This chapter aims to determine whether diversification benefits accrue from adding emerging market hedge funds (EMHFs) to an emerging market bond/equity portfolio, and…

Abstract

This chapter aims to determine whether diversification benefits accrue from adding emerging market hedge funds (EMHFs) to an emerging market bond/equity portfolio, and subsequently whether the type of exposure hedge funds provide is justified by their fees. We use multivariate cointegration analysis to show that the advantages of adding hedge funds to balanced portfolios are limited for the three regions of Asia, Eastern Europe, and Latin America, as well as for the entire global emerging market universe. In summary, we find that emerging market hedge funds are generally redundant for diversifying long-only emerging market investment portfolios with long-term investment horizons. This result also holds when we extend our sample by the global financial crisis in 2008 and 2009 and allow for structural breaks according to the Gregory-Hansen (1996) test. Hence, even during the global financial crisis in 2008 and 2009, when risk diversification was most needed, long-term comovements between hedge funds and traditional assets is, with the exception of the Eastern European region, not disrupted. Because EMHF returns are heavily influenced by the emerging market equity and bond markets, we conclude that the “alpha fees” charged by EMHFs may not always be appropriate for the three main regions under consideration. This also holds, however, to a lesser extent, for a global diversification among hedge funds and traditional assets in emerging markets.

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Article
Publication date: 24 June 2024

Meiryani

This paper aims to present a comprehensive assessment of the literature about the research agenda for future studies on risk management in small and medium-sized businesses (SMEs…

232

Abstract

Purpose

This paper aims to present a comprehensive assessment of the literature about the research agenda for future studies on risk management in small and medium-sized businesses (SMEs) with a research agenda for bibliometric analysis. The author's goals are to point out inconsistencies and gaps in the literature and to suggest directions for future study.

Design/methodology/approach

A total of 147 papers were analyzed in terms of bibliographic information, research design, and findings. These included publication by year, most cited documents, citation by year, publication by authors, publication by subject area, publication by country, publication by affiliation, funding sponsor, network representation of keyword co-occurrence, and cluster visualization of keyword co-occurrence. This study used bibliometric analysis methods, keyword searches, and suitability assessment for bibliometric analysis.

Findings

The bibliometric research revealed a number of potential risk categories for small and medium enterprises (SMEs). In addition, an analysis of the risk-related elements aimed to avoid or reduce their adverse effects, the published study highlights how crucial a risk management procedure is for SMEs. Risk factors were also shown to be unavoidable; as a result, everyone needs to practice social responsibility in order to reduce the detrimental effects on the economy.

Research limitations/implications

Future studies are required on risk identification, analysis, plan implementation, and control in the context of small and medium-sized enterprise risk management.

Originality/value

This work represents the first in a bibliometric analysis of risk management in small and medium-sized enterprises (SMEs) for the future research agenda.

Details

Managerial Finance, vol. 50 no. 9
Type: Research Article
ISSN: 0307-4358

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Article
Publication date: 7 January 2019

Gaston Fornes, Belen Lopez, Melanie Bierens de Haan and Javier Blanch

The paper analyses social and environmental engagement, stakeholders’ relations and corporate social responsibility (CSR) strategies/options along with their underlying mechanisms…

785

Abstract

Purpose

The paper analyses social and environmental engagement, stakeholders’ relations and corporate social responsibility (CSR) strategies/options along with their underlying mechanisms of firms operating in China.

Design/methodology/approach

It does this through the analysis of a unique case study using data collected from internal members and external stakeholders of the company framed within stakeholder theory.

Findings

Within the Aguinis and Glavas (2012) framework, the results show that the company’s resources and values can act as a mediator, their high visibility and scale can act as a moderator, and their self-regulation can act as a predictor in weak institutional contexts. Also, the findings show that employees’ perceptions of visionary leadership can act as a mediator, and that the alignment in the vision/values/beliefs of the chief executive officer with those of the shareholders can act as moderators.

Originality/value

The paper intends to contribute to the literature on CSR in China by analysing a specific type of investor, the socially responsible investor, neglected in the CSR literature, and by studying multilevel (individual/organisational/institutional) social and environmental engagement, stakeholders’ relations and CSR strategies/options in an evolving institutional environment.

Details

Journal of Asia Business Studies, vol. 13 no. 1
Type: Research Article
ISSN: 1558-7894

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Article
Publication date: 16 December 2024

Rui Zhao, Lixia Niu and Shiquan Wang

In this study, we explore the impact of innovation failure on organizational strategy from a risk governance perspective, considering systems thinking as a mediating variable and…

28

Abstract

Purpose

In this study, we explore the impact of innovation failure on organizational strategy from a risk governance perspective, considering systems thinking as a mediating variable and risk perception as an essential weighting variable.

Design/methodology/approach

This paper conducts questionnaire research using 364 survey data from high-tech small and medium-sized enterprises (SMEs) in China. It uses a hierarchical regression approach to test an original model.

Findings

The results indicate that systems thinking mediates the effect of innovation failure on organizational strategy. The contingency analyses also revealed that the positive impact of systems thinking on imitation strategy is stronger at high levels of risk perception. However, the relationship between systems thinking and innovation strategy is weaker when the risk perception is high.

Originality/value

This paper constructs a theoretical research framework for risk governance to explore how innovation failure affects enterprises’ future organizational strategy, offering valuable insights for enterprise innovation management after innovation failure.

Details

Management Decision, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0025-1747

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Book part
Publication date: 31 December 2010

Wafa Kammoun Masmoudi

Purpose – The purpose of this chapter is to present an investigation on the dynamic linkages between global macro hedge funds and traditional financial assets of developed and…

Abstract

Purpose – The purpose of this chapter is to present an investigation on the dynamic linkages between global macro hedge funds and traditional financial assets of developed and emerging markets.

Methodology/approach – To explore relationships among these price indices, we analyse Granger causality and vector autoregression (VAR) dynamics through impulse response functions. Besides, multivariate cointegration is used to know long-term relationships between assets and allows risk-averse investors to reduce uncertainty. Finally, a vector error correction model (VECM) provides active asset managers the opportunity to anticipate short-term price movements.

Findings – Our results show that in a Granger causality sense, we observe long- and short-term relationships between global macro hedge funds and traditional financial assets for Canada, France and Germany. This implies that opportunities for international portfolio diversification are significantly lower for countries having relationships between assets. For Canada, France and Germany, the risk-averse investors can reduce their long-term volatility by investing according to the cointegrating vector, whereas active managers can benefit from the knowledge of short-term asset price movements. The VEC Pairwise Granger causality in the short term confirms our analysis of causality according to VAR models.

Originality/value of paper – These results are original because they help the investor to understand the dynamics of the relationship between global macro hedge funds and traditional financial assets.

Details

Nonlinear Modeling of Economic and Financial Time-Series
Type: Book
ISBN: 978-0-85724-489-5

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