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This paper aims to investigate the influence of the contact status between the seal ring and its support on the seal performance in hydrostatic mechanical face seal.

A thermal fluid-solid interaction (TFSI) model of hydrostatic mechanical face seal is further developed, in which the multi-body contacts between components are particularly given more attention. The numerical models of the flow field and complete seal assemblies are developed. A specific energy equation is obtained to simplify the calculation of film temperature. Based on the mechanism for the continuity condition of the physical quantities at the fluid–solid interface, the TFSI model uses an on-line iterative coupling method.

The contact status between seal ring and its support affects the seal performance significantly. The rotating ring and the stationary ring contribute differently because of the contact status difference.

The contact status between the seal ring and the ring seat is key to gain an insight into the performance of the hydrostatic mechanical face seal thus provides guidance for mechanical seal design.

The purpose of this paper is to study the influences of recess configurations on the performances of high-speed hybrid journal bearing. Hybrid journal bearing earns increasing attention in high-speed machine tool spindle owing to its intrinsic outstanding performances of low temperature rise and high stability.

To investigate the coupled effects of temperature, turbulence and the interaction between lubricant and journal/bearing bush, a thermal fluid-structure interaction approach is presented and validated by the experimental results.

Ladder-type recess has excellent tribological characteristics in decreasing temperature rise, improving stability and inhibiting cavitation, which are all beneficial to improve the performances of high-speed spindle system.

This work can be a valuable guide for the future high-speed hybrid journal bearing design.

This paper aims to address the broad question of how organizations capture value from foresight exercises. Through a comparative case analysis, this paper looks at what firms do to make the information usable and create value. It explores factors that cause different firms to respond differently to the same trends. It analyzes the passenger car segment of the automobile industry and the response of six major firms to fossil fuel and changing environmental regulations through an analysis of their policies and strategic activities, such as new product development. It finds foresight to be an important link between firm capabilities and environmental changes.

This paper adopts the case approach to capture the linkage between the issue and the context (Yin, 1994) and uses multiple cases to explore the variables by comparing and contrasting the cases on key aspects (Eisenhardt and Graebner, 2007). As the paper ' s objective is to understand the similarities and differences between dominant firms in the sector, it chooses through theoretical sampling, six firms that have a presence in all the major regions of the world – two each from the USA, Europe and Japan – Ford, General Motors, Volkswagen, Renault, Toyota and Honda. This sample represents the firms and regions traditionally strong in the passenger car industry.

Thus, it is seen that the relationship that was posited in the conceptual model between the goal of the firms, the vision of the future and the nature of products and approach to technology/competence development seems to be valid. However, in addition, the paper perceives that some additional linkages that link between foresight and the goals and vision of the future seem to be influenced by the extent of uncertainty. In addition, the decisions regarding portfolio of products and approaches to technology and competence development seem to be also influenced by the perception of existing competencies and the external competitive context.

This paper was based on multiple cases created out of secondary information, hence the constructs used are those which are perceived and stated.

The paper could help firms understand decisions related to technology choices in field involving high levels of uncertainty and competition.

This paper could improve learning processes from foresight exercises, and enable strategic decisions to be taken on these.

Thus, this paper has explored the linkages between what firms perceive and state, and what is reflected in their actions. It has looked at this linkage from the perspective of foresight, and the strategic perspective of the firm. It has come up with additional issues and questions that influence this relationship. These can inform future research in this domain.

The purpose of this study was to review research published by Journal of Educational Administration (JEA) and the Educational Administration Quarterly (EAQ) over the past ten years to examine the type of research reported and to determine if confidence intervals and effect sizes were being reported as recommended by the American Psychological Association (APA) Publication Manual.

The authors examined 95 volumes of the identified journals over the most recent ten‐year timeframe. Each empirical study was coded for decisions made during the analysis and information reported. A total of 473 journal articles were examined and included in the study. Descriptive measures were employed to provide insight into the use and frequency of reported confidence intervals, effect sizes, and the type of research that is currently published.

The results indicated that effect size was being reported in the majority of quantitative studies with limited interpretation. In contrast, no quantitative study examined over the ten‐year timeframe reported confidence intervals despite the recommendations of the APA Task Force on Statistical Inference and guidelines outlined in the most recent edition of the APA Publication Manual. Recommendations for statistical reform in reporting quantitative results in the JEA and EAQ are presented and future direction is discussed.

This paper is valuable for researchers wanting to place their findings in the proper context. By not reporting confidence intervals and effect size information, one does not know the true meaning of their results.

This paper aims at analyzing the potential of new materials in magnesium-ion batteries (MIBs) with a particular focus on options for electrodes and electrolyte solutions while also carefully considering the barriers to their entry in this application for MIBs, with a particular focus on the material options for electrodes and electrolyte solutions.

Potential materials for MIBs were examined for sustainability, safety and efficiency to develop the sustainable and well-working MIBs.

For anode materials, the use of Mg-bismuth alloys has shown promise, whereas Chevrel phases or layered molybdenum disulfide have potential as cathode materials. Potential electrolytes range from traditional materials to the development of tailored solid-state and liquid-based options.

This study considers the growing need for Mg-based ion batteries, as well as the need for suitable electrode and electrolyte materials and analyzes suitable options.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2023-0081/

Previous literature suggests that people might purchase symbolic products to signal their social identity. However, in the organizational context, subordinates as customers might choose products with less brand prestige than what they want and can afford, just to make sure their choices are below the invisible “red-line” set by the brands of their supervisors. The authors term the phenomenon as “boss ceiling effect,” and term the behavior that people often downgrade their original choice to make sure the brand prestige is lower than that of the product owned by their boss as “downgrading behavior,” which have not been explored and well explained by existing literature so far. The paper aims to discuss this issue.

The authors conduct qualitative study to explore the existence of boss ceiling effect and providing possible influential factors of brand downgrading attitude. The quantitative study empirically examines the relationships among undesired self, perceived risk, organizational culture balance, and downgrading attitude and intension.

The authors find that undesired self-congruence and perceived risk are positively related to the downgrading attitude. In addition, the culture balance directly affects the brand downgrading attitude negatively and also moderates the relationship between undesired self-congruence and downgrading attitude positively and the relationship between perceived risk and downgrading attitude negatively.

The authors contribute to both organizational culture research and symbolic consumption research by considering symbolic consumption behavior in organization context. It is of great practical implications for marketers of symbolic consumption to understand the downgrading behavior.

Consumers’ perceptions of new technologies are vital for the adoption of innovations. However, due to the complexity of technological innovations and associated consumer concerns, marketing communications play a crucial role in shaping attitudes. In this context, the level of technical complexity presented in advertisements can be a critical determinant of communication effectiveness. The paper aims to discuss this issue.

By conducting an experiment in the context of plug-in hybrid electric cars, this study examines the impact of technical complexity on communication effectiveness. The authors also include consumers’ product involvement as a potential moderator of this relationship.

This paper reveals that individuals with low product involvement respond more favourably to technically simple ads. However, medium-involved consumers show the best responses towards ads with a high level of technical complexity. Interestingly, the authors could not find significant attitude differences for high-involvement individuals in terms of the level of technical complexity.

The results support the notion that the advice “keep it short and simple” is not always appropriate. In particular, when marketers want to communicate technological innovations, a more complex presentation can provoke positive reactions, when the audience has at least a medium level of product involvement.

There is little evidence concerning how technical complexity within marketing communications affects consumer attitudes. This study significantly contributes to the understanding of how advertisements of technological innovations are perceived by consumers.