Value-in-exchange or value-in-use? Empirical insights into consumer perceptions.

This paper considers consumer perceptions of value against the background of emerging paradigm shifts in marketing moving away from traditional transactional ‘value-in-exchange’ approaches where marketers create value for consumers, towards a concept of ‘value-in-use’ where it is the consumer who creates the value with the organisation deemed to be at best only a co-creator. Much of the relevant literature on governmental interventions is located within the public health arena, yet there is little which examines issues of value or value creation. This paper also therefore addresses this gap in the extant literature by considering issues of value in relation to engagement in physical activity and health in a leisure service setting

State-of-the-art in aerodynamic shape optimisation methods

Aerodynamic optimisation has become an indispensable component for any aerodynamic design over the past 60 years, with applications to aircraft, cars, trains, bridges, wind turbines, internal pipe flows, and cavities, among others, and is thus relevant in many facets of technology. With advancements in computational power, automated design optimisation procedures have become more competent, however, there is an ambiguity and bias throughout the literature with regards to relative performance of optimisation architectures and employed algorithms. This paper provides a well-balanced critical review of the dominant optimisation approaches that have been integrated with aerodynamic theory for the purpose of shape optimisation. A total of 229 papers, published in more than 120 journals and conference proceedings, have been classified into 6 different optimisation algorithm approaches. The material cited includes some of the most well-established authors and publications in the field of aerodynamic optimisation. This paper aims to eliminate bias toward certain algorithms by analysing the limitations, drawbacks, and the benefits of the most utilised optimisation approaches. This review provides comprehensive but straightforward insight for non-specialists and reference detailing the current state for specialist practitioners

Semi-span wind tunnel testing without conventional peniche

Low-speed wind tunnel tests of a flexible wing semi-span model have been implemented in the 9×79×7 ft de Havilland wind tunnel at the University of Glasgow. The main objective of this investigation is to quantify the effect of removing the traditional peniche boundary layer spacer utilised in this type of testing. Removal of the peniche results in a stand-off gap between the wind tunnel wall and the model’s symmetry plane. This offers the advantage of preventing the development of a horseshoe vortex in front of the model, at the peniche/wall juncture. The formation of the horseshoe vortex is known to influence the flow structures around the entire model and thus alters the model’s aerodynamic behaviours. To determine the influence of the stand-off gap, several gap heights have been tested for a range of angles of attack at Re=1.5×106Re=1.5×106 , based on the wing mean aerodynamic chord (MAC). Force platform data have been used to evaluate aerodynamic coefficients, and how they vary with stand-off heights. Stereoscopic Particle Imaging Velocimetry (sPIV) was used to examine the interaction between the tunnel boundary layer and model’s respective stand-off gap. In addition, clay and tuft surface visualisation enhanced the understanding of how local flow structures over the length of the fuselage vary with stand-off height and angle of attack. The presented results show that a stand-off gap of four-to-five times the displacement thickness of the tunnel wall boundary layer is capable of achieving a flow field around the model fuselage that is representative of what would be expected for an equivalent full-span model in free-air—this cannot be achieved with the application of a peniche

Shearing-Stress Measurements by use of a Heated Element

The rate of local heat transfer from a solid surface to a moving fluid is related to the local skin frinction. Measurements of the heat transmission from small elements embedded in the surface of a solid can thus be used to botain local skin-friction coefficients. This method was applied by Fage and Falkner for laminar boundary layers and by Ludwieg for turbulent boundary layers. The present report discussed the possible range of application of such an instrument in low- and high-speed flow and presents experimental data to show that a very simple instrument can be used to obtain laminar and turbulent skin-friction coefficients with a single calibration. The instrument consists of an ordinary hot-wire cemented into a groove in the surface. The heat loss from the wire is proportional to the cube root of the wall shearing stress, and the constant of proportionality may be found by one calibration, for example, in laminar flow

Towards developing understanding of the drivers, constraints from the consumption values underpinning participation in physical activity.

Overall participation rates in physical activity across the UK have remained relatively static since the mid 1980s, with attendant causes for concern about the inequality of participation rates amongst various target groups that may be worthy of specific investigation. Behaviour change models from the fields of leisure studies, consumer behaviour and social psychology offer conceptualisation of a notion of exchange underpinning the expectancy-value process, noting that, in order to facilitate a voluntary exchange there needs to be a value proposition that induces action and/or motivates effort from the consumer. It is therefore reasonable to assume that such value expectations will also influence health behaviour intentions. This paper therefore aims to offer a more developing understanding of the drivers, constraints and experiential consumption values underpinning participation in physical activity. Results suggest that, rather than focusing on the social and altruistic values of behavioural changes, and given that the functional value of participation is already well-known (if not always acted upon) through social marketing campaigns’ educational efforts and through the media, it may be worth policymakers and leisure service providers focusing more on highlighting the emotional benefits to be gained, especially when targeting women to increase their participation in physical activit

Why don’t people do what’s good for them? : an examination of the value(s) which affect physical activity.

One of the 21st Century’s major public health issues is physical inactivity. Therefore one of the greatest public policy challenges is to find new ways of conferring to an inactive population the health related benefits that arise from being physically active in a way that not only leads to knowledge acquisition, but which also leads to increased levels of participation in physical activity. Participation rates in physical activity across the UK have remained stubbornly static since the mid‐ 1980s and retain a range of gender, age, social‐economic and ethnic participation inequalities. Research has indicated that, when compared to men, women are more likely to: lead sedentary lifestyles (Hausenblas and Symons‐Downs, 2005), experience poor health (Bertakis et al., 2000), and feel more uncomfortable about their body image (Liechty et al., 2006), factors which impact on and/or result in lower participation levels, suggesting that social marketing campaigns to date have been largely ineffective. A central tenet of social marketing is to achieve a voluntary, not forced or coerced behaviour change by emphasising a value proposition that induces action from the consumer. Set in the context of publicly funded leisure facilities this paper offers empirical insights regarding the drivers, constraints and consumption values underpinning women’s participation in physical activity. Our results suggest that value perceptions regarding the costs, benefits and enjoyment of exercise do not differ with gender. However, statistically significant differences exist between the genders regarding: the physical environment within which exercise occurs; the quality of service experience; and intrinsic factors such as social and altruistic value. Insights gained from this research may be able to inform policymakers and leisure services providers regarding more effective methods of engaging ‘hard‐to‐reach’ groups, such as women. Specifically, our findings suggest that exercise adoption is likely to be increased with targeted social marketing campaigns which focus on emphasising the experiential aspects of consuming physical activity viewed from the perspective of value‐in‐use rather than from the traditional price‐based perspective that tends to focus on the trade off of costs against benefits

Passive instrumentation and stimuli generation for Saturn IB equipment checkout. Volume I - Summary technical report Final technical report, 26 Jun. 1965 - 31 May 1966

Passive instrumentation and stimuli generation for Saturn IB equipment checkout - nondestructive testin

Implementations guidelines, airborne evaluation equipment, advanced system checkout design, phase B Final report, 29 Jun. 1965 - 29 Jul. 1966

Airborne checkout equipment functions and implementation for Saturn IVB stage and instrument uni

Heating and cooling a tri-level house with a hydronic baseboard-valance system

Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign