2,872 research outputs found
Alive and Kicking! J.B. Priestley and the University of Bradford
No full textYesThis article explores the connections between Bradford-born author J.B. Priestley and the University of Bradford, using evidence from archives held in Special Collections at the University. The discussion includes the award of an honorary doctorate to Priestley in 1970 and the opening of the J.B. Priestley Library in 1975
Policy-Induced Technology Adoption: Evidence from the U.S. Lead Phasedown
No full textThe theory of environmental regulation suggests that economic instruments, such as taxes and tradable permits, create more effective technology adoption incentives than conventional regulatory standards. We explore this issue for an important industry undergoing technological responses to a dramatic decrease in allowed pollution levels—the petroleum industry’s phasedown of lead in gasoline. Using a panel of refineries from 1971 to 1995, we provide some of the first direct evidence that alternative policies affect the pattern of adoption in expected ways. Importantly, we find that the tradable permit system used during the lead phasedown provided incentives for more efficient technology adoption decisions. Where environmentally appropriate, this suggests that flexible market-based regulation can achieve environmental goals while providing better incentives for technology diffusion.technology, adoption, diffusion, environment, regulation, lead, gasoline, tradable permit, incentive-based policy
Good Words (Magazine) for 1868
No full textAs Abbey writes, the fable articles here precede and are different from their first appearance in book form a year later. For it was then that Ralston published the first edition of Krilof and His Fables. See my comments on the third (1871) and fourth (1883) editions. The book smells of its many years! The three fable articles are on 39-46, including six illustrations on 40-41; 215-221, including six illustrations on 216-17; and 413-20, including six illustrations on 416-17. These are magazine articles. They comment on Krilof's views and particularly on Russian foibles. Thus one prose text after another is integrated into the article. In the book, there will be, after a preface and a memoir, a simple collection of texts. In fact, the selection of Krilof fables within the article here is excellent, and the author puts them into a good cultural and political context. At least some of the illustrations are the same as those in the third edition.. The texts are close to those found in the published books. It makes sense to see the texts in the magazine here as forerunners of those fable texts there. I presume that Ralston had opportunity to edit and amend between his magazine articles and his book's first edition. The publisher of the magazine is of course the publisher of the third edition that I have. The print is minuscule! I needed a magnifying glass for normal reading. The index just after 774 assigns J.B. Zwecker and A.B. Houghton as illustrators for the eighteen illustrations in the three fable articles. Dalziel, Houghton, and Zwecker are the names I can make out on the illustrations. Dalziel is not mentioned on the title page, but there is reference to others.This is a hardbound book (hard cover)Norman MacLeod; W.R.S. Ralston for fable
"J.B. Stoner", August 15, 1972
No full textPublic address written by John R. Lewis urging people to renounce the racially-repugnant sentiments of Georgia politician J.B. Stoner and register to vote in order to protect their interests, written August 15, 1972. 3 pages
Can Reynolds stress transport models be used for large eddy simulation?
No full textThis work explores a route to unify Reynolds averaged (RANS) and large eddy simulation (LES). The approach is to use a slightly modified Reynolds stress transport model for any mesh resolution. The model is formulated in terms of both total kinetic energy and modeled kinetic energy in such a way that the RST model correctly reproduces RANS results, LES results, and even DNS results (by turning itself off). The model equations do not contain functions of the mesh size within any of the model terms or constants. It is demonstrated that this approach works at any mesh resolution. In addition, the model naturally transitions between mesh resolutions, either coarse to fine or vice-versa. It is shown that for LES mesh resolutions the model returns a turbulent length scale that is proportional to the mesh size (the classic LES turbulent length scale)
Depth-Dependent Resonant Soft X-ray Kerr Effects in Exchange-Biased NiFe/FeMn/Co/Pd films
No full textThe peripatetic fossils: part 4
No full textThese two articles are the latest round In exchanges over the charge that Professor VJ. Gupta is responsible for corruption of the palaeontological literature on the Himalayas. Gupta (p. 307) responds to the allegations of four co-authors of papers with him. Professor J.B. Waterhouse, another co-author, comments below both on those allegations and on the articles by Dr John Talent in which the issue was raised originally. Talent will reply in next week'sNature
Dichotomous choice contingent valuation probability distributions
No full textParametric distributions applied to dichotomous choice contingent valuation data invoke assumptions about the distribution of willingness to pay that may contravene economic theory. This article develops and applies distributions that allow the shape of bid distributions to vary. Alternative distributions provide little, if any, improvement in statistical fit from commonly used distributions. While median willingness to pay is largely invariant to distribution, estimates of mean consumer surplus diverge widely. Sensitivity analysis to determine benefit measure response to distributional assumptions is essential to prevent erroneous policy advice from applied dichotomous choice research.Resource /Energy Economics and Policy,
Large deviations of planetary jets
No full textRare or extreme events are of great interest in climate and other systems. Few studies address these statistics from a dynamical perspective. Classical statistical approaches, for instance closures or stochastic averaging usually describe typical states or low order statistics only. Large deviation theory is a very interesting alternative to these classical methods. It can in principle describe both typical fluctuations and extreme fluctuations. This allows us to discuss the long time evolution of the jet. One goal is to predict the dynamics that may lead to change of regimes and change of attractors in atmospheric jet dynamics
Cross-phase modulation in rubidium-87
No full textThis thesis explores the theoretical foundations of cross-phase modulation (XPM) between optical fields in the N-configuration atom. This is the process by which the refractive index experienced by one field can be modulated by controlling the intensity of another. The electro-optical version of this effect was first discovered by John Kerr in 1875 and found applications in photonics as a means of very rapidly modulating the phase and intensity of electromagnetic fields. Due to recent advances in experimental techniques there has been growing interest in generating nonlinear optical interactions in coherently prepared atomic ensembles.
The use of coherently prepared media brings the possibility of achieving a much larger cross-phase modulation than is possible using classical materials. This is particularly useful when trying to create large optical nonlinearities between low-intensity electromagnetic fields. Much of the current research into cross-phase modulation is directed towards realising potential applications in the emerging field of quantum information processing. Above all, the possibility of constructing an all-optical quantum computer has been at the heart of much research and controversy in the field.
In this thesis the theory of steady-state, transient and pulsed cross-phase modulation is developed. Moreover, care has been taken to relate all research back to experimentally feasible situations. As such, the relevance of the theory is justified by consideration of the situation present in rubidium-87. Due to the close relationship between XPM in the N-configuration atom and electromagnetically induced transparency in the Lambda-atom, many similarities and insights act as link between these two fields. Indeed, it is frequently demonstrated that the key to understanding the various properties of XPM in the N-configuration atom is by comparison with the situation in the corresponding Lambda-atom equivalent
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