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Approaching mentoring from the theoretical tradition of continental pedagogy and contrasting it to the neoliberal organization of the academy, this paper aims to analyze how the Croatian higher education document framework constructs mentoring graduate and postgraduate students' research projects.

The analysis of 50 national- and university-level documents, which were coded using an adapted strategy described by Saldaña (2014), was guided by the following research questions. 1. Which elements of the mentor’s activity in guiding the research projects of graduate and postgraduate students are addressed by the relevant Croatian higher education documents? 2. Which elements of the graduate and postgraduate students’ activity in conducting research projects are addressed? 3. Which structural dimensions of mentoring these research projects are addressed?

The results point to the construction of mentoring as a pedagogical relationship based on guidance, support and dialog and also signal the processes of quantification of education and responsibilization of individuals.

The results can be used in the critical revision of the documents as well as in supporting mentors in their professional roles.

This is the first analysis of the Croatian higher education document framework focused on mentoring students’ research projects.

This paper aims to provide a full introduction, new classification, comparison and investigation of the challenges as well as applications of layerless 3D printing, which is one of the industry 4.0 pioneers.

Given the significance and novelty of uniform 3D printing, more than 250 publications were collected and reviewed in an unbiased and clear manner.

As a result, the majority of uniform parts printed in polymer form are known up to this point. In a novel division for better researchers’ comprehension, uniform printing systems were classified into three categories: oxygen inhibition (OI), liquid lubrication (LL) and photon penetration (PP), and each was thoroughly investigated. Furthermore, these three approaches were evaluated in terms of printing speed, precision and accuracy, manufacturing scale and cost.

The parameters of each approach were compared independently, and then a practical comparison was conducted among these three approaches. Finally, a variety of technologies, opportunities, challenges and advantages of each significant method, as well as a future outlook for layerless rapid prototyping, are presented.

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/