Search results

This paper aims to present the implementation of a finite element (FE) model used to establish crack and delamination development in a Glare reinforced aluminium plate under fatigue loading. This model predicts the behaviour of bonded GLARE straps used as crack retarders for life extension of aircraft structures. In particular, it takes into account the interaction that exists between the substrate crack and the delamination crack at the interface with the reinforcement.

In this work, a 3D FE model with three-layer continuum shell elements has been developed to calculate changes in substrate stress intensity and in fatigue crack growth (FCG) rate produced by bonded strap reinforcement. Both circular and elliptical strap delamination geometries were incorporated into the model. Calculated stress intensity factors (SIFs) were used together with measured FCG data for substrate material to predict FCG rates for the strapped condition.

The model predicted a decrease in the SIF and a retardation of FCG rates. The SIF was predicted to vary through the thickness of the substrate due to the phenomenon of secondary bending and also the bridging effect caused by the presence of the strap. The influence of delamination shape and size on substrate crack stress intensity and delamination strain energy release rate has been calculated.

This research aims at developing modelling techniques that could be used when studying larger reinforced structures found in aircraft.

This is a report on a research project on the development of a model for tourist development of abandoned rural settlements and estates. In the project we used the Visitor Friendly Test, known as Kotler's test, taking into consideration basic questions for testing place friendliness suggested by Philip Kotier, Donald Haider and Irving Rein (1993). The Kotier — Haider — Rein test attracted our attention because of a great interest in it among the tourism experts. As the test had never been carried out before, we developed it in such a way that it could be used in practice. The pilot project was carried out on an example of a (lesser developed) tourist community Tr□iè. Test evaluation was made on the basis of experiences gained through development and implementation of the test. This article explains the developmental process of the test, weights, problems and some results. The basic aim of the pilot project was to evaluate the test potential for further use in testing visitor friendliness of places and its usefulness in the tourism development model for abandoned estates where the possibility of measuring the actual customer expectations and perceptions do not yet exist.

to evaluate the experiences of knowledge workers who work in shared workspaces and those who moved from single-cell offices to shared workspaces.

Knowledge workers were surveyed before and after 34% moved from single-cell offices to shared workspaces. The authors exploit this panel design in the analysis.

Shared offices were rated as providing more distraction, less privacy and worsened indoor environment quality (IEQ) (p < 0.05). Perceptions of collaboration and networking also declined in shared workspaces. Distraction and a lack of privacy were negatively associated with self-reported productivity (p < 0.10). Neither IEQ nor collaboration nor networking was significantly associated with productivity. The perceptions of those who moved to shared workspaces and those who had worked in shared workspaces all along were statistically indistinguishable.

The quasi-experimental control provides evidence that it is the office type, not the experience of moving, that accounts for the evaluative changes. There are limitations inherent in using a self-rating performance measure.

Organisations should be aware that the positive outcomes ascribed to shared spaces may not be apparent and that demands may outweigh benefits.

Knowledge workers are particularly impacted by distraction and interruptions to concentrated work. The quasi-experimental design controlled for the Hawthorne effect, demonstrating that it is the office type, not the move, that accounts for differences in perceptions.

Informal knowledge sharing interactions (IKSI) are of particular value for innovation projects. This is especially true for unplanned IKSI, because they are even more likely to provide non-redundant knowledge and new perspectives than planned IKSI. Seminal studies have shown that the formation of unplanned IKSI can be explained on the basis of spatial structures. Strictly speaking, however, these studies only explain unplanned encounters. Whether unplanned IKSI result from these unplanned encounters, though, cannot be satisfactorily explained on the basis of spatial configurations alone. The purpose of this paper is to tackle this explanatory gap by unraveling the fundamental social processes by application of the symbolic interaction theory.

For this purpose, the formation of 132 IKSI on innovation projects from three research and development departments of large companies was recorded in detail using a combination of diaries and interviews. The data were analyzed using qualitative content analysis.

The analysis reveals that IKSI cause symbolic costs (image damages), and that these costs vary between types of social situations. Because actors anticipate situation-specific costs, their propensity to initiate IKSI can be explained in terms of the situations in which they encounter one another. Furthermore, the analysis reveals six particularly relevant characteristics of situations and further elaborates the basic argument by analyzing their functioning.

The paper complements previous explanations of unplanned IKSI by opening up the social processes underlying their formation.

This paper presents an autobiographical sketch of Philip Kotler.

I use an autobiographical narrative.

This sketch focuses on my contributions to the marketing discipline in teaching and, especially, in book publishing while including some of the many scholars who have collaborated with me.

This paper is a condensed sketch based on the full-length autobiography titled My Adventures in Marketing forthcoming on Kindle.

For the past twenty‐five years or so, the writings of George Orwell — especially his final novel 1984 — have been a popular topic for student research. From junior high through graduate school, interest in Orwell has been consistent. Book reports, term papers, and even seminars on Orwell are common‐place in the national curriculum. Now, as the year 1984 arrives, librarians at all levels — public, school, academic — must brace themselves for a year‐long onslaught of requests for biographical and critical material on Orwell.

This paper seeks to deal with the history of Research and Development (R&D) management. It takes the history of the R&D Department of the Royal Philips Electronics of The Netherlands as an example to unravel the dynamics behind industrial R&D management.

This paper is based upon historical and theoretical studies on industrial R&D institutions and research cultures.

The paper proposes that the directors of the Philips R&D Department continually shaped and reshaped the organization in order to retain researchers with creative ideas, and to stimulate innovativeness. The R&D‐management was the outcome of a search process that comprehended a mixture of scientific and industrial (management) skills, knowledge and expertise, which together shaped an industrial research culture. One of the most difficult questions for the research managers was to find a balance between the professional status and motives of individual researchers on the one hand and the Philips company production strategy on the other. Over the years, the research leaders stimulated individual creativity in their own way, taking specific business and economic circumstances into account. They operated during different historical periods that reflect their management ideas.

Nowadays, the Philips research takes place at the High Tech Campus. Its philosophy is based upon Chesbrough's open innovation paradigm. In the discussion of this paper, it is argued that the history of industrial research teaches that the success of this organization, as in the past, will depend upon the management's ability to find a balance between scientific activities and industrial production.

AS Canadians themselves will quickly inform you, this is a big, young country—Great Britain would fit into a small part of Alberta, large stretches of which are still not accurately recorded on large scale maps. Indeed, I listened to radio reports of a search for two aircraft on the first morning we were there. One aircraft (a helicopter) had been missing in the North Western Territories with a Calgary man aboard for two weeks and was eventually found crashed; the other, missing for two days, was a Cessna seaplane which had run out of fuel and punctured a float as it landed close to the shore of the Great Slave Lake. The occupants were rescued by air from this largely uncharted waste.

Through a survey of 200 employees working in five of the thirty establishments analysed in previous research about the microeconomic effects of reducing the working time (Cahier 25), the consequences on employees of such a reduction can be assessed; and relevant attitudes and aspirations better known.