1,409 research outputs found

    Introduction: John Gower\u27s Twenty-First Century Appeal

    Get PDF
    This is the introductory essay to a special issue of the South Atlantic Review focusing on John Gower. Guest editor for this issue is Kara L. McShane with the assistance of R. F. Yeager

    Avant la lettre: Philip Perry, Reconversionist Aesthetics, and the Medieval Literary

    Get PDF
    Producción Científica“Medievalism,” in the words of Tom Shippey, is “the study of responses to the Middle Ages at all periods since a sense of the mediaeval began to develop.”1 Although a relatively recent area of study, it nevertheless has long roots, and over time many practitioners, some better known than others. Philip Mark Perry (d. 1774), the subject of this essay, came early to the field, only to leave it before his efforts could see print. Nevertheless, his exploration of medieval writings and writers deserves greater recognition. Here we hope to establish that Perry's largely unedited manuscripts, now in Spain and Scotland, offer evidence of an exceptional contribution to the early narrative of medievalism.Financiado por la Agencia Estatal de Investigación, proyecto I+D "Misiones y transmisiones: intercambios entre la Península Ibérica y las Islas Británicas en la época Moderna Extensa" Ref: PID2020-113516GB-I0

    Reduction of blade-vortex interaction noise using higher harmonic pitch control

    Get PDF
    An acoustics test using an aeroelastically scaled rotor was conducted to examine the effectiveness of higher harmonic blade pitch control for the reduction of impulsive blade-vortex interaction (BVI) noise. A four-bladed, 110 in. diameter, articulated rotor model was tested in a heavy gas (Freon-12) medium in Langley's Transonic Dynamics Tunnel. Noise and vibration measurements were made for a range of matched flight conditions, where prescribed (open-loop) higher harmonic pitch was superimposed on the normal (baseline) collective and cyclic trim pitch. For the inflow-microphone noise measurements, advantage was taken of the reverberance in the hard walled tunnel by using a sound power determination approach. Initial findings from on-line data processing for three of the test microphones are reported for a 4/rev (4P) collective pitch control for a range of input amplitudes and phases. By comparing these results to corresponding baseline (no control) conditions, significant noise reductions (4 to 5 dB) were found for low-speed descent conditions, where helicopter BVI noise is most intense. For other rotor flight conditions, the overall noise was found to increase. All cases show increased vibration levels

    A Case Study of the Impact of Bioenergy Development Upon Crop Production, Livestock Feeding, and Water Resource Usage in Kansas

    Get PDF
    The development of grain-based ethanol production in Kansas has had a marked impact upon the feedgrain and livestock industries of the state. The increased focus on feedgrain production stemming from ethanol development impacts the use and sustainability of Kansas water resources, and has changed the proportional mix of crops grown in the state. The need to handle increased amounts of feedgrains and to transport them to ethanol plants has affected the functional role of local grain elevators as well as the directional flow of grain within the state. The grain trucking industry has been dramatically affected by the increase in demand for moving both feedstock inputs and co-product outputs to and from ethanol plants in the state.Crop Production/Industries, Livestock Production/Industries, Resource /Energy Economics and Policy,

    A new type of carbon resistance thermometer with excellent thermal contact at millikelvin temperatures

    Full text link
    Using a new brand of commercially available carbon resistor we built a cryogenic thermometer with an extremely good thermal contact to its thermal environment. Because of its superior thermal contact the thermometer is insensitive to low levels of spurious radio frequency heating. We calibrated our thermometer down to 5mK using a quartz tuning fork He-3 viscometer and measured its thermal resistance and thermal response time.Comment: 5 pages, 4 figure

    Isoscalar g Factors of Even-Even and Odd-Odd Nuclei

    Full text link
    We consider T=0 states in even-even and odd-odd N=Z nuclei. The g factors that emerge are isoscalar. We find that the single j shell model gives simple expressions for these g factors which for even-even nuclei are suprisingly close to the collective values for K=0 bands. The g factors of many 2+ in even-even nuclei and 1+ and 3+ states in odd-odd nuclei have g factors close to 0.5

    Performance, Carcass Characteristics, and Life Cycle Assessment of Cattle Grown Utilizing Different Combinations of Growth Promoting Technologies

    Get PDF
    The objective of this study was to determine the impact of different combinations of growth promoting technologies on live animal performance, carcass characteristics, and environmental outcomes

    Credibility and adjustment: gold standards versus currency boards

    Full text link
    It is often maintained that currency boards (CBs) and gold standards (GSs) are alike in that they are stringent monetary rules, the two basic features of which are high credibility of monetary authorities and the existence of automatic adjustment (non discretionary) mechanism. This article includes a comparative analysis of these two types of regimes both from the perspective of the sources and mechanisms of generating confidence and credibility, and the elements of operation of the automatic adjustment mechanism. Confidence under the GS is endogenously driven, whereas it is exogenously determined under the CB. CB is a much more asymmetric regime than GS (the adjustment is much to the detriment of peripheral countries) although asymmetry is a typical feature of any monetary regime. The lack of credibility is typical for peripheral countries and cannot be overcome completely even by “hard” monetary regimes.http://deepblue.lib.umich.edu/bitstream/2027.42/40078/3/wp692.pd

    Target Zones in History and Theory: Lessons from an Austro-Hungarian Experiment (1896-1914)

    Get PDF
    The first known experiment with an exchange rate band took place in Austria- Hungary between 1896 and 1914. The rationale for introducing this policy rested on precisely those intuitions that the modern literature has emphasized: the band was designed to secure both exchange rate stability and monetary policy autonomy. However, unlike more recent experiences, such as the ERM, this policy was not undermined by credibility problems. The episode provides an ideal testing ground for some important ideas in modern macroeconomics: specifically, can formal rules, when faithfully adhered to, provide policy makers with some advantages such as short term autonomy? First, we find that a credible band has a "microeconomic" influence on exchange rate stability. By reducing uncertainty, a credible fluctuation band improves the quality of expectations, a channel that has been neglected in the modern literature. Second, we show that the standard test of the basic target zone model is flawed and develop an alternative methodology. We believe that these findings shed a new light on the economics of exchange rate bands
    • …
    corecore