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The limited energy density of batteries generates the need for high-performance power sources for emerging eVTOL applications with radical operational improvement potential over traditional aircraft. This paper aims to evaluate on-design and off-design recuperated turbogenerator performances based on newly developed compression loaded ceramic turbines, the Inside-out Ceramic Turbine (ICT), in order to select the optimum engine configuration for sub-megawatt systems.

System-level thermal engine modeling is combined with electric generators and power electronics performance predictions to obtain the Pareto front between efficiency and power density for a variety of engine designs, both for recuperated and simple cycle turbines. Part load efficiency for those engines are evaluated, and the results are used for an engine selection based on a simplified eVTOL mission capability.

By operating with high turbine inlet temperature, variable output speed and adequately sized recuperator, a turbogenerator provides exceptional efficiency at both nominal power and part load operation for a turbomachine, while maintaining the high power density required for aircraft. In application with a high peak-to-cruise power ratio, such power source would provide eight times the range of battery-electric power pack and an 80% improvement over the state-of-the-art simple cycle turbogenerator.

The implementation of a recuperator would provide additional gains especially important for military and on-demand mobility applications, notably reducing the heat signature and noise of the system. The engine low-pressure ratio reduces its complexity and combined with the fuel savings, the system could significantly reduce operational cost.

Implementation of radically new ICT architecture provides the key element to make a sub-megawatt recuperated turbogenerator viable in terms of power density. The synergetic combination of a recuperator, high temperature turbine and variable speed electric generator provides drastic improvement over simple-cycle turbines, making such a system highly relevant as the power source for future eVTOL applications.

This chapter describes five disciplinary domains of research or lenses that contribute to the design of a team tutor. We focus on four significant challenges in developing Intelligent Team Tutoring Systems (ITTSs), and explore how the five lenses can offer guidance for these challenges. The four challenges arise in the design of team member interactions, performance metrics and skill development, feedback, and tutor authoring. The five lenses or research domains that we apply to these four challenges are Tutor Engineering, Learning Sciences, Science of Teams, Data Analyst, and Human–Computer Interaction. This matrix of applications from each perspective offers a framework to guide designers in creating ITTSs.

Purpose – Statistics about the level of crime continue to attract public and political attention but are often presented in conflicting ways. In England and Wales, police-recorded crimes are no longer considered “national statistics” and, instead, the crime survey of England and Wales (CSEW) is used. However, it is not clear why partial population data (e.g., police-recorded crime) are considered less reliable or valid for measuring temporal crime trends in society than inferential statistical estimation models that are based on samples such as CSEW. This is particularly the case for approximating rare events like high-harm violence and specific harmful modus operandi (e.g., knife crime and firearms). In this chapter, the authors cross-reference victim survey and police-recorded data to determine similarities and contradictions in trends.

Methods – Using police data and CSEW estimates, the authors contrast variance and logarithmic trend lines since 1981 across a range of data categories and then triangulate the results with assault records from hospital consultations.

Findings – Change in crime rates in recent years is neither as unique nor extreme as promulgated in media coverage of crime. Moreover, analyses show conflicting narratives with a host of plausible but inconclusive depictions of the “actual” amount of crime committed in the society. The authors also conclude that neither source of data can serve as the benchmark of the other. Thus, both data systems suffer from major methodological perils, and the estimated crime means in CSEW, inferred from samples, are not necessarily more valid or accurate than police-recorded data (particularly for low-frequency and high-harm crimes). On the other hand police-recorded data are susceptible to variations in recording practices. As such, the authors propose a number of areas for further research, and a revised taxonomy of crime classifications to assist with future public interpretations of crime statistics.

Originality – There is much public and academic discourse about different sources of crime measurement yet infrequent analysis of the precise similarities and differences between the methods. This chapter offers a new perspective on long-term trends and highlights an issue of much contemporaneous concern: rising violent crime.

This paper examines the acceptance, of a group of 79 students, of an educational forum, used for mobile and distance learning, that has been modified to include empathic characteristics and affective principles.

With this study is proposed that the introduction of empathic and affective principles in educational forums is a useful and effective way to increase students’ participation and motivation in educational contexts. After an analysis of existing literature and research on the subject of empathic technology, the unified theory of acceptance and use of technology (UTAUT) was used as a framework for the research model. The analysis of their acceptance is done via an extended version of the UTAUT that focuses on the use of the variable attitude toward technology and uses gender, age and experience as moderators. A partial least square technique has been used to test the nine hypotheses.

The results confirmed three of the nine hypotheses: performance expectancy and effort expectancy had a positive influence on the students attitudes towards empathic forums, while the effect of social influence and facilitating conditions was considered insignificant; social influence had a positive influence on the students’ behavioral intention to use emphatic forums, while attitude toward technology, performance expectancy, facilitating conditions and effort expectancy were considered not relevant.

The focus of this study was the influence of attitude toward empathic forums, used for mobile and distance learning, and the results establish the grounds for future research on attitude as an important determinant of technology acceptance.

The purpose of this paper is to examine the environment-strategy-structure fit in the context of industrial servitization and its impact on the profitability of manufacturing SMEs.

Data were collected from face-to-face interviews with the CEOs of 184 French manufacturing SMEs. These primary data were complemented by the indicators extracted from a financial database to ensure objective measures of financial performance. Analyses were conducted by means of partial least squares structural equation modeling.

The research tests the impact of the organizational design (customer interface, service delivery system and service culture (SC)) on financial performance. It also tests the moderating effect on this relationship of servitization strategies adopted by the firm (added services (AS), activities reconfiguration (AR) and business model reconfiguration (BMR)) and the environment in which the firm is situated (industry dynamism, competitive intensity and industry munificence).

This study considers the coalescence of the environment-strategy-structure to be a driver of firm performance in the context of industrial firms’ servitization. Three specific servitization strategies (AS, AR and BMR) are suggested based on the service offering’s impact on the customer’s activity chain or business model.

The research proposes some optimal organizational design depending on servitization strategy and environmental factors; for example, SC has a strong impact on financial performance when BMR is adopted.

This empirical study is based on an extended sample of 184 SMEs and provides quantitative support for the claim that good alignment between strategy and organizational design based on environmental factors increases profitability.

This paper aims to examine how auditors make sense of the ill-theorized and contentious notion of other comprehensive income (OCI), specifically by uncovering their use of metaphors to make OCI plausible and intelligible.

This interpretative paper draws on a collection of 21 interviews with experienced auditors. The analysis first uncovers metaphors that naturally surface within the talk and sensemaking of auditors about OCI (elicited metaphors). The authors then encapsulate these elicited metaphors into second-order constructs (projected metaphors) to synthesize and further explain auditors’ practical sensemaking.

Auditors conceive OCI as a “safety” that ensures the well-functioning of fair value accounting, metaphorically qualifying this notion as a “necessary evil”, a “passage obligé”, and a “parking lot” resolving fair value-related issues and aberrations. Auditors also metaphorize OCI as a “purifier” that allows “polluted”, “noisy”, and “unloved” items to be “parked” outside net income.

The study’s findings further the understanding of auditors’ tendency to remain uncritical throughout their sensemaking process. Making sense of professional standards of practice through metaphors indubitably involves shadowing and silencing other worldviews.

This paper extends knowledge of auditors’ sensemaking, specifically showing how auditors easily make sense of complex notions even in the absence of conceptual grounds. This study also highlights that metaphors are a powerful sensemaking device that auditors mobilize to render complex notions intelligible and mitigate IFRS inconsistencies.

The purpose of this paper is to draw a parallel between color combinations in coats of arms of the twelfth century and color combinations in current brand logotypes of 400 companies from the Forbes Global 2000 list.

In this work, the frequency of color combinations displayed in medieval coats of arms and in the brand logotypes of the top 400 largest companies in the Forbes list were compared.

One of the main findings of this research is the stability of color usage in two visual identity systems – coats of arms and brand logotypes – although 800 years separate them. In these two identification systems, almost the same colors are preferred or rejected. Yet, even though it is regularly argued that color will submerge the consumption world, this research shows that, in the twenty-first century, visual identities of brands are rather less colorful than medieval coats of arms: nowadays, at a global level, half of the logotypes are formed with white combined with red and/or blue.

By drawing a parallel between two visual identification systems that are coats of arms and logotypes, the results from this study highlight the stability in color usage and color combinations along the centuries. Thus, it seems that modern analysis of color combination practices could greatly benefit from the history and historical evolution of coats of arms. Far from being out of date, the study of coats of arms can provide marketers with interesting insights about the rules and implementation of color combinations when designing logotypes.

The need for a holistic framework for studying organisational transformation towards Servitization is implicit. This is particularly relevant as Servitization demands consideration of both business model and organisational change. The purpose of this paper is, therefore, to provide an integrative framework that systematically captures and evaluate existing literature on Servitization.

The aim of the paper has been achieved through three main objectives; comprehensively examine the literature in organisational change management that would assist with the selection of the most effective evaluation framework, classify previous studies against the proposed framework through a systematic literature review methodology and analyse the selected papers and propose research questions/propositions based on the identified gaps.

Results indicate that there are two somewhat macro opportunities for the Servitization community, namely, stronger infusion of generic theory into the Servitization debate and exploring Servitization in action through the lens of the theoretical framework.

The findings of the paper demonstrate the gaps in the Servitization literature, which indeed require further theoretical/empirical research.

It is discussed the usefulness and practicality of viewing research contributions that are setting out to be either “descriptive” or “prescriptive”. Consequently, the authors have proposed several avenues for future research based on these two viewpoints.