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The choke flutter is a fluid-structure interaction that can lead to the failure of fan or compressor blade in turbojet engines. In ultra high bypass ratio (UHBR) fans, the choke flutter appears at part-speed regimes and at low or negative incidence when a strong shock-wave chokes the blade to blade channel. The purpose of this study is to locate the main excitation sources and improving the understanding of the different work exchange mechanisms. This work contributes to avoiding deficient and dangerous fan design.

In this paper, an UHBR fan is analyzed using a time-linearized Reynolds-averaged Navier–Stokes equation solver to investigate the choke flutter. The steady-state and the imposed vibration (inter blade phase angle, reduced frequency and mode shape) are selected to be in choke flutter situation. Superposition principle induced by the linearization allow to decompose the blade in numerous small subsections to track the contribution of each local vibration to the global damping. All simulations have been performed on a two-dimensional blade to blade extraction.

Result analysis points to a restricted number of excitation sources at the trailing edge which induce a large part of the work exchange in a limited region of the airfoil. Main phenomena suspected are the shock-wave motion and the shock-wave/boundary layer interaction.

An original excitation source tracking methodology allowed by the linearized calculation is addressed and applied to a UHBR fan test case.

In this chapter, we examine conundrums of self-study of practice (S-SP) research that emerge from positioning this work in a space that calls for a critical rethinking of ontology and takes seriously the work of postmodernist philosophy. We explore aspects of self in relationship to the other – concerns, transformations, representations positioning, and growth – when ideas emerge in the midst of practice. We begin with an investigation of conundrums of Self in relationship to Other where both exist in continual process of BECOMING based in the work of Deleuze. We then consider the self within the research framework of S-SP methodology. As part of this examination, we consider key characteristics of this methodology in relationship to the self in practice that is the orientation to ontology and dialogue as the process of coming-to-know in this space. Next, we consider the conundrum of particularity and wholeness in the exploration of tacit and practical knowledge. We use works by Clandinin and others to probe the ways particularities and wholeness interact with tacit understandings that entangle and merge into embodied knowing. We also articulate the conundrum of the ethical for the Self and Other in S-SP Research and other forms of intimate scholarship.

This research provides accounting-ethics authors and administrators with a benchmark for accounting-ethics research. While Bernardi and Bean (2010) considered publications in business-ethics and accounting’s top-40 journals this study considers research in eight accounting-ethics and public-interest journals, as well as, 34 business-ethics journals. We analyzed the contents of our 42 journals for the 25-year period between 1991 through 2015. This research documents the continued growth (Bernardi & Bean, 2007) of accounting-ethics research in both accounting-ethics and business-ethics journals. We provide data on the top-10 ethics authors in each doctoral year group, the top-50 ethics authors over the most recent 10, 20, and 25 years, and a distribution among ethics scholars for these periods. For the 25-year timeframe, our data indicate that only 665 (274) of the 5,125 accounting PhDs/DBAs (13.0% and 5.4% respectively) in Canada and the United States had authored or co-authored one (more than one) ethics article.

This chapter forwards a justification, an explanation, and numerous examples related to an emerging integrated sustainability management theory and its connections to other management theories and key-related concepts including systems and immersion. An integrated approach to sustainability solutions presents several implications for educators, researchers, practitioners, and policymakers, including the need to consider urgent and immediate responses that address sustainability crises at multiple levels and in multiple systems. This chapter is intended to promote reflection, dialogue, and a collective call to action to secure a sustainable world for present and future generations.

The purpose of this paper is to address the issues of luxury gift giving and the giving of luxury wines as gifts from a conceptual perspective.

The article considers the OA (aesthetic and ontology) model as proposed by Berthon et al. that permits the integration of various conceptualisations of different authors in the area of luxury branding. The model offers a typology of luxury brands that draws on Heidegger's theory of arts and Whitehead's process philosophy. This means that one can differentiate luxury brands along two dimensions: aesthetics and ontology.

The paper contends that the four modes as set out in the AO model of Berthon et al. can be used as a typology of luxury wines, from both gift giving, and gift receiving, perspectives.

Luxury wine marketers can make use of the proposed typology to target wine gift givers effectively, by understanding where on the proposed matrix both the giver and the receiver are positioned. The four modes that emerge can be seen as different target markets, with different motivations and different behaviors with regard to luxury wines as gifts.

By applying the OA model to luxury wines and specifically to the giving and receiving of luxury wines, this paper offers wine marketers the insight to formulate different marketing mix strategies based on the different target markets that emerge from the proposed model.

Using a prosopographical methodology this study examines common leadership influences that might have existed among Genghis Khan, George Washington, and Nelson Mandela. Shoup (2005) suggests that the following seven influences have contributed to nurturing the leadership of 12 renowned individuals: involved parents, happy childhood, formal, informal education, prodigious patrons, critics and adversaries, apprenticeship/sequences of success, and favorable fate. This analysis suggests that the seven influences in his model had an affect the lives of the three individuals in this study, making them competent or exemplary leaders. The study additionally proposes three application stages that educators can utilize to instill leadership values and abilities in young minds.

In an attempt to satisfy the rising demand for luxury in the era of the “democratisation of luxury” or the “luxurification of society” without threatening the uniqueness and exclusivity of luxury brands, a profound understanding of the luxury concept and its deeper values is essential. As the complexity of luxury value and the assessment of effects on individual luxury value perception and related behavioral outcomes are still poorly understood and widely unexplored, the purpose of this paper is to fill this research gap.

In the exploratory study context of examining the antecedents and outcomes of individual luxury value perception, PLS path modeling was used for the empirical tests of the hypotheses.

The results support the assumption that the desire for luxury brands involves several dimensions of luxury value including financial, functional, individual and social consumer perceptions. Besides, the individual luxury value perception is significantly related to the consumption of luxury goods in terms of purchase intention, recommendation behavior and the willingness to pay a premium price.

The incremental value of the present study is to present and empirically verify a concept that embraces the complexity of luxury value and its causal effects on different aspects of luxury consumption. The results have important implications for luxury brand management and future research in the domain of luxury goods. By addressing the specific value aspects that are highly relevant for consumer loyalty to the brand, a luxury company can stimulate purchase behavior with appropriate marketing campaigns that create and preserve the most important value aspects throughout the supply chain from production to distribution.