Search results

This paper aims to present a fluid-structure coupling partitioned scheme involving rigid bodies supported by spring-damper systems. This scheme can be used with already existing fluid flow solvers without the need to modify them.

The scheme is based on a modified Broyden method. It solves the equations of solid body motion in which the external forces coming from the flow are provided by a segregated flow solver used as a black box. The whole scheme is implicit.

The proposed partitioned method is stable even in the ultimate case of very strong fluid–solid interactions involving a massless cylinder oscillating with no structural damping. The overhead associated with the coupling scheme represents an execution time increase by a factor of about 2 to 5, depending on the context. The scheme also has the advantage of being able to incorporate turbulence modeling directly through the flow solver. It has been tested successfully with URANS simulations without wall law, thus involving thin high aspect-ratio cells near the wall.

Such problems are known to be very difficult to solve and previous studies usually rely on monolithic approaches. To the authors' knowledge, this is the first time a partitioned scheme is used to solve fluid–solid interactions involving massless components.

The aims of this paper are to share how one cohort of tourism practitioners viewed the transformative change needed within the tourism industry and to explore the implications for leadership in the future.

The research design is based on a virtual whiteboard brainstorming activity incorporating both the individual and collective thinking of 20 participants in a global cohort class. Using conversational techniques to elicit cognitive knowledge and felt experience, the methodology generates shared understandings about the opportunities and challenges of implementing regenerative tourism.

The conversations reported in the findings of this paper provide important insights into the challenges and opportunities faced by tourism professionals as enablers of regenerative tourism. Findings included, first, that participants within the course demonstrated characteristics of transformational leadership including a strong moral positioning, embodied self-awareness, collaboration and collective action. Second, specific points of inertia that impede regenerative tourism are identified including embedded culture, power and organisational structures. Third, professionals are calling for practical tools, new frames of reference, and examples to help communicate regenerative tourism.

This is a viewpoint, not a research paper. Nonetheless, it provides a rich vein of future research in terms of disruptive pedagogy, potentially gendered interest in regenerative tourism, issues of transforming the next generation and power.

Governance, organisational, destination management strategies, planning and policy frameworks, individual issues as well as contradictions within the tourism system were revealed. Transformative change in an uncertain future requires transformational leadership, characterised by moral character and behaviours that trigger empowered responses.

This paper shares insights from a unique global cohort class of tourism professionals wherein the challenges and opportunities for regenerative tourism are identified. The methodology is unusual in that it incorporates both individual and collective thinking through which shared understandings emerge.

The purpose of this paper is to study business models (BMs) for smart meters (SMs) and discuss related issues in the French institutional context. Because SM introduce deregulation on both the demand and supply sides, the authors argue that they represent an opportunity to “unlock” the system by enabling feedback to consumers. The authors discuss the empirical findings from the TICELEC (Technologies de l’Information pour une Consommation Electrique – Information Technology for Sustainable Electricity Consumption Behaviors) project which is an experimental initiative to measure potential energy savings through the implementation of SM, and to test behavioral change.

The empirical data are from the TICELEC project and refer to a municipality in southern France. The project was designed to show the qualitative changes deriving from a new technology, and the quantitative changes in the form of real reductions in residential electricity consumption in the short and medium terms. The authors discuss these changes and their potential replication, and examine the nature of the feedback provided to users and the implications for SM BMs for France and for smart cities more generally.

The authors suggest that the opportunities provided by SM have to be compared with other kinds of intervention such as self-monitoring procedures. The results show that any intervention is important for moderating the sole impact of SM. The findings on the importance of changes to “energy habits” relate mainly to “curtailment” and “low efficiency” behaviors, which represent less costly changes. The lessons learned for BM developments linked to SM include incentive systems, smart tariffs, and technologies to increase potential behavior changes and energy savings in this field.

The authors’ analysis of the content of behavioral change shows that curtailment behavior and low-efficiency behavior remain dominant when SMs are implemented. Promoting high-efficiency behaviors is always difficult for reasons of cost. Thus, SM should be combined with other measures such as incentives systems, e.g. “smart tariffication,” and new services to increase their impact.

A proper combination of smart tariffs and SMs to reduce peaks in demand would appear to be critical to boost SM development. It will also be important to integrate SMs with smart grids to improve energy efficiency and exploit renewables and energy storage in electricity networks.

SMs are important but any interventions that motivate households to change their energy habits also help in the French context. SMs enable households to try to reduce their energy consumption but they are not the solution.

There are no detailed results published for France. Utilities such as Electricite Reseau Distribution France, have introduced R & D programs oriented to the deployment of SM which have been tested since 2009 (e.g. see the local LINKY meter projects in Lyon and Touraine). The empirical data are from the TICELEC project and refer to a municipality in southern France. The project was designed to show the qualitative changes deriving from a new technology, and the quantitative changes in the form of real reductions in residential electricity consumption in the short and medium terms. The authors discuss these changes and their potential replication, and examine the nature of the feedback provided to users and the implications for SM BMs for France and for smart cities more generally.

This study aims to investigate the role of two structural factors – threat level depicted on fear messages and warning size – as well as two contextual factors – repeated exposure and type of packs – on pictorial and threatening tobacco warnings’ effectiveness.

A two (warning threat level: moderate vs high) × two (coverage: 40 vs 75 per cent) × two (packaging type: plain vs branded) within-subjects experiment was carried out. Subjects were exposed three times to pictorial and threatening tobacco warnings. Both self-report and psychophysiological measurements of emotion were used.

Results indicate that threat level is the most effective structural factor to influence smokers’ reactions, while warning size has very low impact. Furthermore, emotional arousal, fear and disgust, as well as attitude toward tobacco brand, decrease after the second exposure to pictorial and threatening tobacco warnings, but stay stable at the third exposure. However, there is no effect of repetition on the emotional valence component, arousal-subjective component, on intention of quitting or of reducing cigarette consumption. Finally, there is a negative effect of plain packs on attitude toward tobacco brand over repeated exposures, but there is no effect of the type of packs on smokers’ emotions and intentions.

Useful marketing social guidance, which might help government decision-makers increase the effectiveness of smoking reduction measures, is offered.

For the first time in this context, psychophysiological and self-report measurements were combined to measure smokers’ reactions toward pictorial and threatening tobacco warnings in a repeated exposure study.

The paper deals with research activities to develop optimization workflows implying computational fluid dynamics (CFD) modelling. The purpose of this paper is to present an industrial and fully-automated optimal design tool, able to handle objectives, constraints, multi-parameters and multi-points optimization on a given CATIA CAD. The work is realized on Rapid And CostEffective Rotorcraft compound rotorcraft in the framework of the Fast RotorCraft Innovative Aircraft Demonstrator Platform (IADP) within the Clean Sky 2 programme.

The proposed solution relies on an automated CAD-CFD workflow called through the optimization process based on surrogate-based optimization (SBO) techniques. The SBO workflow has been specifically developed.

The methodology is validated on a simple configuration (bended pipe with two parameters). Then, the process is applied on a full compound rotorcraft to minimize the flow distortion at the engine entry. The design of the experiment and the optimization loop act on seven design parameters of the air inlet and for each individual the evaluation is performed on two operation points, namely, cruise flight and hover case. Finally, the best design is analyzed and aerodynamic performances are compared with the initial design.

The adding value of the developed process is to deal with geometric integration conflicts addressed through a specific CAD module and the implementation of a penalty function method to manage the unsuccessful evaluation of any individual.

The horizontal rotational single-sheet tester (RSST) suffers from weaknesses such as the reduced size of test samples, measurement disturbances due to magnetic flux leakage and nonhomogeneity of field in the measurement area. Although the vertical RSST allows to overcome the first two aforementioned drawbacks, the heterogeneity of the field in the test sample remains an issue. In addition, there is still a lack of device standardization to ensure test repeatability, as already is well established with the Epstein frame. This paper aims to investigate the influence of several parameters on the field homogeneity in the test sample.

A fully 3D finite element model of a vertical RSST is developed and used to perform a sensibility study on several geometrical parameters.

The influence of several parameters on the field homogeneity in the test sample, such as the geometrical dimensions of the yokes, the presence or not of holes drilled inside the test sample for B-coil placement as well as the size of the H-coils and B-coils, is addressed.

It is expected that this study will contribute to the optimization and standardization vertical RSSTs.

The purpose of the present paper is to examine the effects of overconsumption on consumer evaluations of advertised brands. While the determinants and health consequences of overconsumption have received considerable attention, the authors suggest that there are important marketing and advertising implications. Specifically, based on goal theory, the authors examined whether the aversive state of oversatiation is associated with more negative evaluations of advertised brands of the overconsumed product.

In three studies, oversatiation was measured or experimentally induced by having participants drink (too) much mineral water. Subsequently, participants watched advertisement of mineral water brands and control brands. Evaluations of the brands, buying intentions and estimates of future purchases of the advertised brands were measured.

Oversatiation negatively affected evaluations, buying intentions and estimates of future purchases of advertised mineral water brands. Importantly, a state of oversatiation did not affect evaluation of advertised brands not relevant to the overfulfilled goal.

Overconsumption of food and drinks can have detrimental health effects and results in large costs to society. While its health implications have received abundant scientific attention, little attention has been paid to the psychological consequences of the state of being oversatiated. Here, the authors show that the state of oversatiation (which might, for example, be very common during watching television commercials) can lead to particularly negative evaluations of advertised brands. As such, these findings have important marketing implications.

A performance-based financing (PBF) pilot project was implemented in 2011 in Burkina Faso. After more than five years of implementation (data collection in 2016), the project's sustainability was not guaranteed. This study's objective is to assess this project's sustainability in 2016 by identifying the presence/absence of different determinants of sustainability according to the conceptual framework of Seppey et al. (2017).

It uses a case study approach using in-depth interviews with various actors at the local, district/regional and national levels. Participants (n = 37) included health practitioners, management team members, implementers and senior members of health directions. A thematic analysis based on the conceptual framework was conducted, as well as an inductive analysis.

Results show the project's sustainability level was weak according to an unequal presence of sustainability's determinants; some activities are being maintained but not fully routinised. Discrepancies between the project and the context's values appeared to be important barriers towards sustainability. Project's ownership by key stakeholders also seemed superficial despite the implementers' leadership towards its success. The project's objective towards greater autonomy for health centres was also directly confronting the Burkinabe's hierarchical health system.

This study reveals many fits and misfits between a PBF project and its context affecting its ability to sustain activities through time. It also underlines the importance of using a conceptual framework in implementing and evaluating interventions. These results could be interesting for decision-makers and implementers in further assessing PBF projects elsewhere.

This study aims to investigate the impact of fear of terror (FOT) on employee organizational commitment (OC) working in terror-induced areas through examining the role of rumination as a mediator and perceived organization support (POS) as a moderator.

The authors develop a model in which the mediating role of rumination in the FOT relationship is conditional to the values of OC. Using a sample size of 268 respondents, questionnaires were used to collect data from Pakistan during a period when terrorist attacks were at a peak. Results from the hierarchical regression analyses provided support for the developed model.

Overall, the statistical model is significant (p < 0.05); the authors found negative relationships between FOT and OC. The authors found that FOT positively led to rumination, which then negatively led to OC. It was also found that POS significantly moderated FOT and OC.

This study revealed that FOT is a deterring factor that changed employees’ OC. It further revealed that organizations providing support to employees working in terrorist-ridden areas showed positive commitment. This paper discusses the theoretical and practical implications of these findings.

This paper provides an examination of the relationship between FOT and employee OC. It expands our knowledge of the stress theory and terror management theory for employees working in discontinuous areas.

Co-operative managers must invest appropriately to strengthen member relationships, such as by initiating corporate social responsibility (CSR) actions or providing members with more relational benefits. This paper aims to investigate how members’ motives (collectivistic vs individualistic) might influence the effectiveness of these investments in terms of enhancing members’ trust and loyalty intentions.

This research combines an exploratory approach, based on six focus groups, with a confirmatory approach based on a field study and two scenario-based experiments.

Members tend to regard the two motives in contest and infer a “more CSR versus more benefits” arbitration effort by co-operatives, such that they appear to prioritize one motive over the other. Members with individualistic motives principally support co-operatives’ arbitration toward relational benefits, so the positive effects of CSR initiatives on their trust and loyalty intentions are weaker (Study 1). Both CSR and relational benefits can be more or less efficient, depending on members’ motives (Study 2).

Reflecting their contrasting motives, members infer arbitration by co-operative managers, reflected in their “more CSR versus more benefits” belief. This insight and the related implications for trust and loyalty intentions have not been addressed in prior research.

Managers can avoid the negative consequences of “more CSR versus more benefits” inferences by ensuring a good fit between their investments and their members’ prevailing motives. If members have more collectivistic (cf. individualistic) motives, CSR initiatives (cf. relational benefits) enhance their trust and loyalty intentions more effectively.

This research builds on previous work on members’ relationships within co-operatives and on members’ motives. Results find that the effectiveness of co-operatives’ investments to strengthen members’ loyalty intentions depends on members’ prior motives.