The parameterisation of turbulence in the marine environment

There are many problems in the fields of flow modelling around structures and tidal stream energy yield analysis which require a thorough understanding of the turbulent and time-averaged flow speeds in marine environments. In this paper we examine the relationship between the turbulence intensity and mean tidal flow speed at a potential tidal stream power site. We report data from the Humber Estuary wherein an Acoustic Doppler Current Profiler were used to capture vertical profiles of the high frequency and mean tidal flow speeds throughout Spring and Neap, Flood and Ebb cycles. We show not only that our results extend earlier work but also suggest that the turbulence intensity, IT, can be described parametrically in terms of the mean flow, U, by an inverse power function IT = α Uᵖ where the coefficient appears to be dependent upon the anisotropic nature of the turbulence. For the data reported here, the coefficient has value of about 17–18 and the exponent lies between −0.6 and −1.0. Confirmation of this relationship should not only improve engineering design work and energy yield analyses in turbulent tidal flows but also be applicable to other problems such as the prediction of sediment mass transport and pollution dispersal in estuarine management studies

Teaching ethics in organisational behaviour : a Humean viewpoint

Problem Statement: Concepts of ethics have rarely been easy to teach in the organizational behaviour curriculum. The philosophical bases of ethics are often abstract and prone to multiple interpretations and dilemmas. The changing global environment of organisations adds complexity to the interacting values that people bring into the workplace. To redress the situation, this articlerepresents the stance of David Hume on human morality and proposes an original nexus of his concepts for application in the teaching and learning of ethics in the field of organizational behaviour. Method: Based on the literature, we develop a conceptual model from a thread drawn between Hume&rsquo;s influence on the Scottish Enlightenment and accordingly the current complex business environment which was fostered in part by the economic models espoused by his Enlightenment associates. The concepts are presented as a matrix and relevant examples are explained in this context. Results: Pointing out the challenge of the global rifts in organisational morality, we relate the fable of the traveller from Hume&rsquo;s writings and make the point that the Humean nexus, now distilled from the elaborate reasoning of Hume, provides educators and managers alike with a helpful centre of gravity around which to develop analyses of decisions and actions in order to gain moral perspective that transcends time and place. Conclusions: Business ethics lessons have sometimes been abstract and emotive in organisational Behavior education but the empirical concepts of Hume in this new form have the potential to be useful and agreeable for many.<br /

Religious Careers and Commitment in a Middle-Class Sect

Members of Quaker Meetings may be analyzed according to Weber\u27s traditional or charismatic types. Charismatics show greater commitment and higher education and greater educational mobility. Both charismatics and traditionals show further variation according to the nature of religious career, but the traditional shows inferior commitment regardless of career type

Anomaly Mediation and Dimensional Transmutation

We show how a sparticle spectrum characteristic of anomaly mediation can arise from a theory whose Lagrangian contains no explicit mass scale. The scale of supersymmetry breaking is governed by the gravitino mass, which is the vacuum expectation value of the F-term of the conformal compensator field, and the tachyonic slepton problem is resolved by the breaking of a U(1) gauge symmetry at a scale determined by dimensional transmutation.Comment: 12 pages, 1 figure. v2 has added preprint number and acknowledgement

Freeze branding cattle (1993)

Freeze branding as a method of livestock identification has been received with enthusiasm. When super-cold or chilled branding irons are applied to the hide of the animal, the pigment-producing cells are destroyed or altered. When the hair grows back, it is white. The method is not foolproof, and those using it should be aware that the results may be variable

Anomaly Mediation, Fayet-Iliopoulos D-terms and precision sparticle spectra

We consider the sparticle spectra that arise when anomaly mediation is the source of supersymmetry-breaking and the tachyonic slepton problem is solved by a Fayet-Iliopoulos D-term. We also show how this can lead to a minimal viable extension of anomaly mediation, in which the gauge symmetry associated with this D-term is broken at very high energies, leaving as its footprint in the low energy theory only the required D-terms and seesaw neutrino masses.Comment: 20 pages, 5 figures. Uses epsf. Minor corrections and added referenc

Branding livestock

"Branding is a long-recognized and widely used means of dentifiying livestock. It is an excellent method of identifying ownership, and good legible brands may offer protection against livestock theft. In range areas, branding is essential for establishing ownership at roundup time."--First page.Jack C. Whittier and James E. Ross (Department of Animal Science, College of Agriculture)Revised 6/86/6