bluuebunny/crossref_metadata_2025_split huggingface dataset:
A novel event-triggered adaptive tracking control framework for a manipulator with aperiodic neural network estimation
Authors: Gao Jie 
Published: June 2022

Purpose
The purpose of this study is developing the minimum parameter learning law for the weight updating, which reduces the updating of neural network (NN) weight only at triggering instants and makes a trade-off between the estimation accuracy and triggering frequency such that the computing complexity can be decreased. Besides that, a novel “soft” method is first constructed for the control updating at the triggered instants, to reduce the chattering effect of discontinued renewal of control. Addressing to the proposed control and updating method, a novel dead-zone condition with variable boundary about the triggered control signal is derived to ensure the positivity of adjacent execution intervals.

Design/methodology/approach
In this paper, to achieve the motion tracking of manipulator with uncertainty of system dynamics and the communication constraints in the control-execution channel, an adaptive event-triggered controller with NN identification is constructed to improve the transmission efficiency of control on the premise of the guaranteed performance. In the proposed method, the NN with intermittent updating is proposed to perform the uncertain approximation with the saved computation, and the triggered mechanism is constructed to regulate the transportation of the signal in the channel of controller-to-actuator.

Findings
According to the impulsive Lyapunov function, it can be proved that all the signals are semi-global uniformly ultimately bounded, and the positivity of adjacent execution intervals is also guaranteed by the proposed method. In addition, the chattering effect of control updating at the jumping instants can be relieved by the proposed “soft” mechanism, such that the control accuracy and stability can be guaranteed. Experiments on the JACO2 real manipulator are carried out to verify the effectiveness of the proposed scheme.

Originality/value
To the best of the author’s knowledge, this study is firstly to propose a “soft” method to reduce the chattering effect caused by discontinuous updating. Addressing to the updating method designed above, a novel dead-zone condition with variable threshold and boundary is first constructed to ensure the positivity of execution intervals.
Implementing halal logistics in a non-Muslim-dominant environment: a proposal for reengineering the business processes in two stages
Authors: Ziegler Yvonne , Uli Vincenzo , Tatari Mahmoud 
Published: June 2022

PurposeThe purpose of this paper, positioned in the halal logistics research domain, is to bridge the gap between the theory of halal logistics and halal logistics' empirical implementation through a business process reengineering (BPR) project in the context of a major European airport (i.e. Frankfurt Airport, Fraport AG).Design/methodology/approachAn in-depth case study approach has been adopted in the authors' business processes reengineering proposal. Prior investigations on the topic maintained that “business process analysis and activity elimination” (BP and AE) and “problem analysis” (PA) are the most widespread approaches when the prominent business reengineering dimension under analysis is the specific process/task. Consistently, the authors adopted a six-step BP&AE-based model in order to implement the halal logistics requirements in the context of an air cargo supply chain.FindingsThis paper addresses fundamental issues about the analysis and the redesign of air cargo processes when halal shipments are taken into account. Conceptual breakthroughs of new processes are suggested. The paper sheds light on potential issues which may arise when adapting the extant air cargo processes to halal logistics guidelines. In addition, the paper suggests an appropriate resolution scheme articulated in two stages of progressively higher compliance to halal logistics according to the Malaysian standards (MS).Research limitations/implicationsThe outcome of this work has implications for practitioners, researchers, and transport associations. For practitioners, the study offers an immediately applicable implementation plan which is ready to be discussed with all agents involved in the business reengineering (BR) process. For researchers, the study offers a basis for future halal logistics reengineering projects, both from a theoretical and from an empirical standpoint. Finally, the collaboration of transport associations will become mandatory due to an update of the International Air Transport Association (IATA) code system that includes a dedicated halal code, “HAL”, for halal air cargo shipments.Originality/valueThe concept of halal logistics is still in the infant stage and there is a complete lack of academic publications, especially empirical implementations of halal logistics principles. The authors' project provides detailed guidelines to help air cargo operators operating in non-Muslim-dominant countries to reengineer their internal processes and, in doing so, to comply with halal logistics and principles.
How do human relationships change in the digital environment after COVID-19 pandemic? The road towards agility
Authors: Bellis Paola , Trabucchi Daniel , Buganza Tommaso , Verganti Roberto 
Published: June 2022

PurposeThe coronavirus disease 2019 (COVID-19) pandemic has led to a global digitalization of organizational activities: the pandemic forced people and organizations to profoundly review values, purposes and norms. However, the research on how digital technologies impact human relationships and interactions at work results fragmented. Still, the importance of understanding which behaviors and norms enhance social interactions and organizational performances in digital environments remains critical, especially after COVID-19 advent. Therefore, this study explores how human relationships change in a wholly digital environment and what to expect for the new normal.Design/methodology/approachThe study first explores the research gap through a systematic literature review to clearly understand what emerged so far. Second, through semi-structured interviews and a focus group, an empirical analysis was conducted.FindingsFindings suggest that both work and emotional dimensions are crucial to nurturing human relationships in a digital environment. More precisely, the study unveils the need for innovative leaders to review their approaches to communication and the work experience and consider the emotional dimension in terms of community purpose and individual well-being, while identifying rituals as an overlapping tool. Finally, the authors propose a parallelism between these results and the agile revolution to inspire leaders to rethink their leadership and behaviors getting closer to the agile approach, which may represent a valuable way to rethink human relations in our professional environment.Originality/valueThe paper sheds light on an ongoing phenomenon that touches the lives of each organizational actor. The two-step structure hopes to provide both a structured base of the knowledge developed to date, proposing a systematic view of what has been studied since the outbreak of the pandemic to date and to provide insights for future developments.
(No) country for old men? Intergenerational welfare distribution across welfare state regimes
Authors: Chybalski Filip , Orosz Agnes , Kurach Radosław 
Published: June 2022

PurposeThe article examines the interplay between welfare state regimes and the distribution of welfare between generations.Design/methodology/approachUsing data from 2017 for 24 European countries on six standard of living dimensions, the authors investigate the intergenerational welfare distribution in a two-stage procedure: (1) the authors compare the intergenerational welfare distribution across welfare state regimes using their existing typologies and find a moderate nexus. Therefore, (2) the authors employ clustering procedure to look for a new classification that would better reflect the cross-country variation in the intergenerational welfare division.FindingsThe authors find a complex relationship between the welfare state model and welfare distribution across generations and identify the policy patterns that shape it. Continental and liberal regimes are quite similar in these terms and favour the elderly generation. Social-democratic and CEE regimes seem to be a bit more balanced. COVID-19 pandemic will probably increase the intergenerational imbalance in terms of welfare distribution in favour of the elderly.Originality/valueIn contrast to the majority of previous studies, which employ inputs (social expenditures) or outputs (benefits, incomes), the authors use intergenerational balance indicators reflecting living conditions of a given generation as compared to the reference point defined as an average situation of all generations.
Effect of SiO2on the tribological properties of PTFE sliding against Cu: a molecular dynamics simulation
Authors: Song Jingfu , Zhao Gai , Ding Qingjun , Yang Ying 
Published: June 2022

PurposeThe purpose of this paper is to investigate the effect of SiO2on the tribological properties of polytetrafluoroethylene (PTFE) composites from an atomic level.Design/methodology/approachEffect of SiO2on the tribological properties of PTFE sliding against Cu was studied by molecular dynamics (MD) simulations to explore the inherent mechanisms from an atomic level.FindingsSiO2had a higher interaction energy with PTFE than copper, which contributed to an increase of interfacial temperature and velocity with severe adhesive wear on the PTFE molecules.Originality/valueThis study reveals the mechanism of SiO2on the friction and wear behavior of PTFE by MD simulation.
Linking environmental forces, absorptive capacity, information sharing and innovation performance
Authors: Oke Adegoke , Prajogo Daniel , Idiagbon-Oke Moronke , Cheng T.C. Edwin 
Published: June 2022

PurposeThis study seeks to understand how regulatory and competitive forces impact firms' actions and innovation performance. The study investigates how firms strategize internally and externally to address regulatory and competitive forces, and how such actions influence firms' innovation performance.Design/methodology/approachThe data were collected via a survey of 217 managers of business organizations in Nigeria.FindingsRegulatory forces have a positive relationship with both absorptive capacity (AC) and information sharing (IS). Competitive forces, on the other hand, only have a negative relationship with IS but not with AC. AC has a positive relationship with innovation performance, while IS, surprisingly, does not have a positive relationship with innovation performance.Originality/valueThe study contributes to knowledge by empirically validating the relationships between environmental forces and innovation performance; more importantly, the study uncovers the underlying factors, i.e. IS and AC that link environmental forces and firms' innovation performance.
Digital twins’ impact on organizational control: perspectives on formal vs social control
Authors: Ukko Juhani , Saunila Minna , Nasiri Mina , Rantala Tero , Holopainen Mira 
Published: June 2022

PurposeThis study examines the connection between different digital-twin characteristics and organizational control. Specifically, the study aims to examine whether the digital-twin characteristics exploration, guidance and gamification will affect formal and social control.Design/methodology/approachThe study is based on an analysis of survey results from 139 respondents comprising applied university students who use digital twins.FindingsThe results offer an interesting contribution to the literature. The authors consider the digital-twin characteristics exploration, guidance and gamification and investigate their contribution to two types of organizational controls: formal and social. The results show that two characteristics, exploration and gamification, affect the extent to which digital twins can be utilized for social control. Exploration and guidance’s role is significant concerning the extent to which digital twins can be utilized for formal control.Originality/valueThis study contributes to literature by considering multiple digital-twin characteristics and their contribution to two different control outcomes. First, it diverges from previous technical-oriented research by investigating digital twins in a human context. Second, the study is the first to examine digital twins’ effects from an organizational control perspective systematically.
Review of the methodological approach of analysing rental income of residential property in Abuja, Nigeria
Authors: Bello Nurudeen Akinsola , Abdullahi Bawa Chafe , Atilola Moses Idowu , Thontteh Esther Oromidayo 
Published: June 2022

Purpose
This study aims to review the approaches used in the analysis of rental income of residential property in Abuja, Nigeria, to strengthen the existing investment performance approaches initially relied upon by property investors towards having a better and reliable performance evaluation for property investment decision-making.

Design/methodology/approach
With the adoption of combined methodological approaches, quantitative data on rental history (2006–2016) were collected on the randomly selected residential investment properties (block of flats) available in the portfolio of estate surveying firms in the different locations/sub-markets of the study area. Data collected were analysed with the frequency mean and growth rate.

Findings
All the methodological approaches adopted for analysis displayed varying performance results. No particular sub-market maintains the same ranking position in any of the approaches. The developmental phases previously used as an indication of yield in the study area do not correspond with the status of rental income of sub-markets. Yield has been observed to be a mere attraction to property investment; it does not translate to income growth. Mean income (though a good indicator of changes in rental income) is not a reliable indicator of growth in income, and growth in the rate of income omitted the changes in rental income during the holding period.

Research limitations/implications
The study was restricted to historical rental income data on a block of flat-type residential property, and it does not include capital value analysis or inquire into the factors responsible for variation in rental income during the study period. The outcome of this study is only applicable to a block of 4 number three-bedroom flats residential property type.

Practical implications
Multiple simple methods of analysing rental income performance should be preferred to the single complex method. This will simplify investors’ rental income characteristics of investment towards a better understanding of rental property investment analysis. That rental value appreciates with time does not translate to an increase in the actual rental income of residential investment property.

Social implications
Through these performance approaches, ranking of the sampled properties in the study area sub-markets will enhance investors’ traditional diversification planning across the study area for an enhanced combination that can achieve latent profitability. The attention of investors is hereby called to these multiple approaches to enable them to merge their investment objectives with any or a combination of these approaches towards making rational investment decisions.

Originality/value
This seems to be the first advocacy for methodological paradigm shift applicable to direct residential property investment performance in Nigeria, using transaction rather than appraisal data.
Portfolio replication: Islamic vs conventional
Authors: Tlemsani Issam , Mohamed Hashim Mohamed Ashmel , Matthews Robin 
Published: June 2022

PurposeThis conceptual paper aims to explore portfolio replication to resolve post-COVID pandemic private and public debt. This paper stresses the need to be less dependent on a debt-based system and the emergence Islamic equity market.Design/methodology/approachThis study analyses different types of risks involved in Islamic and conventional portfolios by using risk measures such as relative beta and comparatively examining the systematic and downside risk exposure of Islamic and conventional portfolios. Data was collected monthly from 2016 to 2022.FindingsThe findings indicate that the replications of a conventional portfolio into an Islamic portfolio are compatible with the regulatory standard, sharia boundaries and professional practices developed from investment theory. The result shows that Islamic portfolios have lower risk exposure compared with their conventional counterparts in most of the sample years, therefore, become further attractive for debt–equity portfolio swaps and Sharia-compliant investors preferring low-risk preferences. The result confirmed that the Islamic portfolios have a higher return and less risk than conventional portfolios.Research limitations/implicationsThe implications of this research are to provide a road map to the regulators, policymakers, governments and the financial industry on how to rearrange some of the public and private debt. A likely remedy is incorporating Islamic financial instrument principles through the equitisation of public and private debt.Practical implicationsThis research contributes to investors (particularly those who want to avoid riba [usury] based investment) to make more diversified portfolios by considering Islamic portfolios to reduce risk exposure.Originality/valueTo the best of the authors’ knowledge, this is the first paper to create bivariate debt–equity portfolios swaps composed of Islamic and conventional assets.
The relationship between family cohesion, family-work conflict, enrichment and psychological health of Indian police
Authors: Agrawal Monika , Mahajan Ritika 
Published: June 2022

PurposeThe purpose of this study is to test the influence of family cohesion on family-to-work conflict (FWC), family-to-work enrichment (FWE) and psychological health. The study also aims to investigate the impact of FWC and FEW on psychological health. The study uses conservation of resources theory as a theoretical base.Design/methodology/approachData came from frontline officers of Rajasthan police in India using a purposive sampling technique. The study utilizes Partial Least Square Structural Equation Modeling to test the proposed research model.FindingsThe findings reveal that family cohesion is a critical family resource that diminishes FWC and boosts FWE. The findings further demonstrate that FWE improves psychological health. Lastly, the study displays that FWE fully mediates the link between family cohesion and psychological health.Research limitations/implicationsThe male-dominated sample prevents evaluating gender differences in the proposed relationships. Generalizations to other cultures and contexts are limited. The findings of the study suggest that police administrators need to understand the family characteristics of officers and plan interventions to facilitate a cohesive family environment in the police.Originality/valueLittle is known about the family direction relationships (FWC and FWE) in work-family research. To the best of the authors' knowledge, this is the first study to test a model of family cohesion, FWC, FWE and psychological health.
Exhausted by social distancing at work: understanding the effects of COVID-19 pandemic in workgroups
Authors: Jahantab Farid , Anand Smriti , Vidyarthi Prajya R. 
Published: June 2022

PurposeIn the new post-COVID-19 work order, this study aims to examine whether and how individual-level social distancing interacts with workgroup-level socio-affective support to influence employee exhaustion and performance.Design/methodology/approachMulti-level analyses of time-lagged multi-source data from 231 employees nested in 34 workgroups were conducted to test our hypothesized relationships.FindingsAnalyses revealed a significant relationship between social distancing and employee performance via emotional exhaustion. Further, the positive relationship between social distancing and emotional exhaustion was attenuated by workgroup team orientation and support for innovation, and the indirect effect of social distancing on employee performance was weaker in workgroups with a high team orientation and high support for innovation.Originality/valueThis study extends the job demands-resources theory to the new work order and examines the impact of workplace social distancing on employee outcomes in the context of workgroup membership.
A systematic review of Industry 4.0 maturity models: applicability in the O&G upstream industry
Authors: Onyeme Chinedu , Liyanage Kapila 
Published: June 2022

Purpose
The study aims to review the currently available Industry 4.0 (I4.0) maturity models (MMs) for manufacturing industries and analyse their applicability in the oil and gas (O&G) upstream sector. Knowing that the growth in demand for energy through crude oil and natural gas is still viable over the next decade, there is the drive to ensure sustenance and improvement in production. The study sees an opportunity in harnessing the gains of Industry 4.0 technologies for better solution-driven strategies in production processes, equipment availability and reliability which would translate into higher production performance. So, a review on the Industry 4.0 MMs is considered important.

Design/methodology/approach
A systematic and in-depth literature review was performed to identify the specific requirements of this industry. This study examined the key characteristics of the O&G upstream sector and identified research gaps that need to be addressed to successfully support this industry for Industry 4.0 implementation. An Industry 4.0 MM that reflects the industrial realities for this industry more accurately from insights drawn from reviews of existing MMs is proposed

Findings
The review of 19 selected Industry 4.0 MMs revealed that the existing MMs are not a direct fit for the O&G upstream industry. Only a few of the models were clear on validation but with subjectivity, low number of persons and industries involved as limitations; none of the models confirmed validation with the O&G industry. There are varying views on the model dimensions and maturity levels by each author and not all required areas specific to the O&G industries were acknowledged by the models. An MM specific to this industry is therefore required.

Originality/value
Although the journey of digitisation has commenced in the O&G industry, a reduction with the challenges of transition towards Industry 4.0 implementation and provision of support for improved efficiency is assured using a robust MM, as proposed in this paper.