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This work intends to evaluate experimentally the ratcheting behaviour of AM MS300. Furthermore, cyclic plasticity modelling (modified Abdel-Karim and Ohno model) is examined as a means of predicting ratcheting.

Uniaxial stress-controlled cyclic loading histories were utilised to evaluate ratcheting for Maraging Steel 300 (MS300) fabricated via laser powder bed fusion (LPBF) additive manufacturing (AM). Heat-treated and as-built AM and conventionally manufactured (CM) MS300 coupons were tested at room temperature, under constant and incrementally variable stress amplitude and mean stress. Two sets of AM test coupons were used, printed at horizontal and vertical built orientation. The AM material ratcheting was predicted via constitutive modelling and numerical simulation. The Abdel-Karim and Ohno cyclic plasticity model was modified by introducing a memory surface, to improve ratcheting prediction.

The hysteresis stress–strain response and low cycle fatigue (LCF) life were obtained from the different loading histories. Both the AM and CM MS300 exhibited an accumulation of axial strain (ratcheting) for all tests, attributed to the application of non-zero mean stress. The AM MS300 has demonstrated a higher ratcheting accumulation rate than the CM material. The achieved agreement between the numerical results of the new model and the experimental data offers an indication on the suitability and the robustness of this model.

The ratcheting behaviour of the AM MS300 material has been characterised for the first time in the published literature, for a variety of loading histories selected. A modified Abdel-Karim and Ohno plasticity model has been developed to account for the ratcheting performance of this material.

The objective is to ascertain and amalgamate the extant data about farmers' plans for climate change adaptation and mitigation. The chapter provides comprehensive insights to help farmers and policymakers make informed and relevant decisions.

We conducted five-step scoping review procedure with key databases: Scopus, ProQuest, Science Direct, Springer Link and PLOS ONE. The keywords including climate change AND Agriculture AND production AND rice AND farmer AND farming AND mitigation AND adaptation AND resilience AND Indonesia focusing on publications from 2013 to 2023. We employed PRISMA-Scr protocol and data were thematically extracted using NVivo 12 Plus tool.

The search yielded 878 records, of which 116 were screened in full text, and 37 were included in the review. Key findings indicate that adaptation strategies and management planning involving social capital and social networks are essential for anticipating and responding to climate change-induced disasters. The collaboration between farmers, farmer groups, government and NGOs is pivotal for climate change mitigation.

The research implications highlight the need for targeted policy interventions and capacity-building initiatives to enhance farmers' knowledge and skills in climate change adaptation, fostering collaboration among various stakeholders.

The originality and value of the paper lie in the comprehensive review of the adaptive measures and strategies employed by farmers in Indonesia to mitigate the impacts of climate change on agriculture. This contribution is significant as it not only addresses local challenges but also connects them to broader global discussions on food security and climate adaptation.

This study aims to understand whether the reverse pressure test of BT seals can accurately detect its sealing performance by means of experiment and simulation.

In this paper, the sealing performance test of BT seal in the process of pressure testing is designed. To ensure the correctness of the test findings, this study developed a complete analytical model for the sealing performance of the BT seal, taking into account the entire process of BT seal installation, injection molding, pressure testing and pressure-bearing. This study uses restart technology to transfer data between analysis steps, fluid cavity technology to model the BT seal’s injection molding and pressure penetration technology to simulate the BT seal’s pressure testing and pressure-bearing.

In this paper, the sealing performance of BT seal in the process of pressure test is studied by means of experiment and simulation. The results show that the reverse pressure test of BT seal can accurately detect its sealing performance when the fluid pressure is 80% of the casing anti-extrusion strength, that is, 40.48 MPa. Simulations also indicate that with an injection pressure of 40.48 MPa, the BT seal performs well under fluid pressures up to 69.2 MPa. Therefore, it is advised to increase the BT seal test pressure to 100% of the casing’s strength against internal pressure.

The research methodology and results of this paper provide strong technical support to ensure the safety of oil and gas wellhead tests.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2024-0452/

This study aims to evaluate the effects of the downhole environment and auxiliary rubber bellows on the contact mechanical characteristics and sealing performance of rubber-bellows mechanical seals (RBMS) in electric submersible pumps (ESPs), considering the elastic support of the rubber bellows, multi-field coupling effect and actual operating conditions.

A thermal-fluid-solid multi-field coupling numerical model for RBMS in ESPs is developed using the finite element analysis and influence coefficient method. Based on the contact mechanical characteristics of RBMS, the interactions of multiple physical fields between the sealing rings and lubricating oil are accounted for to assess the liquid lubrication state and sealing performance of RBMS in ESPs.

The findings indicate the anti-leakage effects of rubber bellows, the transition of lubrication state of the sealing end face and the evolution law of sealing performance with environmental pressure, axial compression amount and contact widths of rubber bellows.

This study innovatively proposes a multi-field numerical research method to reveal the impact of the downhole environment and rubber bellows on RBMS in ESPs. These findings contribute to a more comprehensive understanding of the sealing mechanism of RBMS and optimize the sealing design for ESPs in high-pressure environments.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2024-0369/

Organisations increasingly rely on professional interim managers (PIMs), i.e. independent contractors who perform managerial work. These managers, who are usually very experienced and skilled, could help organisations drastically improve their performance. However, research has found that they often fail to do so, indicating that PIMs face unique on-the-job challenges that challenge their capability to be effective managers. In the study reported in this paper, I explored PIMs’ on-the-job challenges and how they overcome them. To better understand the various on-the-job challenges, I developed the concept of the liability of outsiderness.

I applied an exploratory approach and conducted 32 interviews with 21 PIMs.

I uncovered three on-the-job challenges common and unique to PIMs – communicating the contract status and contract period, being quick off the mark and attaining power – and the ways they overcome these challenges.

This paper reports findings and theory that provide several valuable guidelines for practitioners involved with interim management.

Interim management has received little scholarly attention despite its increasing relevance. Empirical research, particularly on PIMs in executive positions, is lacking. This leaves us with little evidence to base our theories and guidelines for interim management. The study reported in this paper adds novel insights to an under-researched but important field of management. The study also introduces the liability of outsiderness concept, which holds much promise for future studies of interim management.

This innovative study aims to combine an AI-based cognitive intervention known as AI painting with a traditional behavioral approach to retirement financial planning, specifically through personalized pension projection (PPP). This integration is intended to address the design limitations inherent in the traditional method.

To evaluate the effectiveness of AI painting, a randomized control trial was conducted, focusing on its impact on retirement goal clarity and risk tolerance among a sample of Chinese working adults. Participants were divided into two groups: the experimental group received both the PPP and AI painting interventions, while the control group was given only the PPP intervention.

The results indicated that AI painting significantly enhanced risk tolerance, although it unexpectedly led to a reduction in retirement goal clarity. Interestingly, the study also found that AI painting facilitated the transformation of retirement goal clarity into increased risk tolerance.

These findings carry important theoretical implications for the development of the capacity-willingness-opportunity model in retirement financial planning. It deepens our understanding of the CWO model by identifying a conditional effect of retirement goal clarity on risk tolerance, a relationship that has not been previously modeled. It also expands the CWO model by proposing and testing additional pathways from new interventions to critical psychological constructs within the framework.

The promising results encourage business banks to incorporate AI painting into their counseling practices, enabling them to capitalize on the rapid advancements in text-to-visual AI technologies to enhance their marketing strategies.

To our knowledge, we are the first team in the world to integrate AI painting into retirement financial planning. As advancements in text-to-painting technology continue to progress rapidly, the value of this study will increase accordingly, as it sets a foundation and inspires further research in this area.

This study investigates drivers of local governments’ digitalization, focusing on contextual factors that can help explain the level of e-government development. Concretely, it examines financial, socioeconomic, and political factors that represent the local context where e-government initiatives are implemented.

A composite e-government index was used, adopting a holistic perspective to capture various features of e-government initiatives. The OLS estimator for linear regressions was used for the analysis based on a sample of Italian municipalities in 2023. The Tobit estimator was additionally implemented to check for the robustness of the results.

Empirical findings suggest that municipalities with higher indebtedness tend to show lower digitalization levels. Economic and social variables are also relevant factors, while the political orientation of the governing party is not significant. This indirectly documents that e-government initiatives play a strategic role despite the political ideology.

This study avoids referring to a technological determinism perspective and examines the role of the institutional and operational context, highlighting the need to unveil and explain differences among local governments rather than focusing on similarities.

The purpose of this paper is to provide an incisive commentary on the role of replication in advancing knowledge accumulation in organizational science. For research to be credible, it must be replicable. However, replication studies are seldom published in high-quality management research journals. Drawing on insights from other disciplines, this essay offers a critical analysis of the replication process. The central conclusion of the essay is that replication should be firmly integrated into the scientific process within management and related fields. Doing so will not only advance robust and reliable theories but also yield valuable lessons for managerial practice and inform sound policymaking.

To structure the argument that replication ensures the validation of theories, refinement of methodologies and greater applicability of research findings, this essay uses Simon Sinek’s Why, How and What framework to highlight the essential role of replication research in advancing management studies. By addressing why replication is critical, how it can be effectively conducted and what the authors can do to promote replication research in organizational studies, the essay underscores its importance in building a reliable and credible foundation for knowledge.

Replication serves as a cornerstone of academic rigor, promoting the cumulative growth of knowledge. This essay outlines the essential steps for conducting robust replications of prior research through three approaches: literal, operational and constructive replication. Furthermore, it proposes actionable strategies for individual, doctoral programs and institutions (i.e. journals and conferences) to enhance transparency and accountability in management research by leveraging replication as a critical tool.

The originality of this essay lies in addressing the underrepresentation of replication research in management, despite its critical role in ensuring scientific rigor. Drawing insights from different disciplines, it provides a framework for conducting replication studies, emphasizing their value in validating theories and bridging the gap between research and practice. By proposing actionable steps for fostering a culture of replication, the essay advocates for increased transparency and accountability in management research. Its main contribution lies in highlighting the necessity of replication as a foundation for robust theory-building, practical insights and evidence-based policymaking, enhancing the credibility of the field.

The purpose of this study is to contribute to the existing literature on the importance of mentorship in academia, particularly in higher education. Specifically, this study aims to address the research gap related to academic mentorship from a gendered perspective. The Productive Mentoring Framework and relational–cultural theory theoretically support this study.

In this qualitative descriptive study, purposive sampling was used to recruit 19 participants for semi-structured interviews and a focus group. Two research questions guided this study: (1) How do individuals who identify as women describe the importance of mentorship in academia? (2) How do individuals who identify as women describe mentorship in academia from a gendered perspective? Using Braun and Clarke’s (2006) thematic analysis, a total of six themes emerged, with three themes identified for each of the two research questions from the data: (a) guidance and support, (b) personal and professional development, (c) inclusive and accountable relationships, (d) empathetic and supportive mentorship, (e) interpersonal connectivity and (f) gender empowerment and advocacy.

The research findings suggest that the participants held perceptions of gender disparity within academia. Additionally, empowering interpersonal relationships with other women and supportive environments were crucial in overcoming challenges and developing personally and professionally in higher education institutions. Future research is recommended to explore the perspectives of women supporting women and the perception of gender disparity in academia.

While successfully addressing the research questions, this study has limitations. One limitation was that this study had a relatively small sample size of participants who identified as women, which limited the focus of this research. Another limitation was that interview and focus group participants did not mention working with mentors who fall outside the traditional binary of male and female. Finally, limitations can occur in qualitative research as there is potential bias in the data analysis process. However, member-checking and codebook verification were utilized to minimize this constraint.

There are practical implications from the research for mentoring practices in academia. Since the results indicated benefits to women, institutions could prioritize mentoring programs, especially pairing same-gender mentors and mentees. This helps new employees navigate academia. Mentoring fosters interpersonal connectivity, improving academic culture. By supporting mentoring relationships and professional friendships, leaders positively impact dynamics within institutions. Gender disparities and systemic barriers call for advocacy within higher education. Mentor training programs should address these issues, providing a platform for solutions. Administrators' awareness may support efforts to improve equity.

The study is original in its focus on academic mentorship from a gendered perspective, as described by women in academia, notably higher education.

This study aims to develop a highly loaded filament with spherical metallic particles for fused filament fabrication (FFF) technology. The research focuses on optimizing powder loading, printing parameters and final processes, including debinding and sintering, to produce successful metal parts.

The optimal powder loading was identified by measuring mixing torque and viscosity at various temperatures. The filament was extruded, and printing parameters − particularly printing speed to ensure proper material flow − were optimized. Different filling patterns were also examined. After printing, the polymeric binder was removed and the parts were sintered to form the final metal components.

The optimal powder loading was determined to be 55 vol.%. The best surface quality was achieved with an optimized printing speed of 5 mm/s. Parts printed with various infill patterns were studied for differences in open, closed and total porosity, showing a strong link between porosity and infill pattern.

This comprehensive study provides new insights into manufacturing metal parts using FFF technology. It fills a gap in the literature regarding feedstock viscosity and shear rate in highly loaded metal filaments during FFF. Additionally, it uniquely examines the open, closed and total porosity of metal parts printed with different infill patterns.