Use of detergent in wool scouring

Wool scouring processes have been the subject of considerable analysis in recent years. However the necessary amount of detergent needed is still controlled by the personal judgement of experienced operators. No detergent measurement procedure, effective for commercial operation, is known. Optimal control of addition of detergent would naturally lead to reduced cost. This report is an attempt to analyse the detergent requirement of a wool scouring process with suggestions for further work

Relativity as Support for Presentism: A Modest Evidential Argument

Presentism is roughly the view that only the present exists. This view requires an absolute simultaneity relation. The special theory of relativity, however, is highly successful and does not account for absolute simultaneity. This is widely regarded as an evidential threat to presentism. In what follows, I propose a modest evidential argument in support of presentism on the basis of the physical evidence itself. A weak relativity postulate is shown to follow from a weak light-speed postulate. The weak light-speed postulate, in turn, is shown to be more probable on presentism than on its main rival doctrine, eternalism. Specifically, when one accounts for possible worlds in which the space-time metric is Euclidean (+,+,+,+) rather than Lorentzian (-,+,+,+), the empirical evidence turns out to be more probable on presentism than on eternalism. If successful, this argument provides modest evidential support for presentism and against eternalism. However, the support is drawn from an unexpected source: the physical evidence itself

Preparedness, crisis management and policy change : EMU at the critical juncture of 2008-2013

Focusing on the role of the European Central Bank during the recent banking and sovereign debt crisis in the euro area, this article contributes to the literature on ideational and institu-tional change at critical junctures. In line with recent calls to take the temporal dimension of political change seriously, the article argues that in the context of explosive economic crises a phase of emergency crisis management precedes the phase of purposeful institution building. What happens during this phase is crucial, for in spite of their improvised charac-ter emergency crisis management measures create their own path dependencies. This, how-ever, raises the question of why crisis managers act the way they do. While it is true that crisis managers act as bricoleurs who use whichever tools they find at their disposal, the question of why certain tools are available rather than others calls for a historicisation of crisis management. The article therefore introduces the variable of preparedness, which measures the extent to which the pre-crisis policy paradigm was prepared for the occur-rence of, in this case, the combination of a systemic banking crisis and a sovereign debt cri-sis. The empirical section then compares pre-crisis contingency planning and in-crisis contingency acting, revealing several inconsistencies in the pre-crisis crisis paradigm. The analysis matters for our understanding of political change because these inconsistencies caused the ECB to assume a dominant position in the euro area during the emergency phase of the crisis. This windfall gain in power for the ECB has already begun to shape the future ideational and institutional order of the euro area

The mistake of 1937: a general equilibrium anlaysis

This paper studies a dynamic general equilibrium model with sticky prices and rational expectations in an environment of low interest rates and deflationary pressures. We show that small changes in the public’s beliefs about the future inflation target of the government can lead to large swings in both inflation and output. This effect is much larger at low interest rates than under regular circumstances. This highlights the importance of effective communication policy at zero interest rates. We argue that confusing communications by the US Federal Reserve, the President of the United States, and key administration officials about future price objectives were responsible for the sharp recession in the US in 1937-38, one of the sharpest recessions in US economic history. Poor communication policy is the mistake of 1937. Before committing the mistake of 1937 the US policy makers faced economic conditions that are similar in some respect to those confronted by Japanese policy makers in the first half of 2006. JEL Classification: E32, E52, E6

Foreword: Urban Bioethics

On February 26, 1997, the Fordham University School of Law hosted the Sixth Annual Stein Center Symposium on Contemporary Urban Challenges, entitled Urban Bioethics: A Symposium on Health Care, Poverty, and Autonomy. The Foreword introduces Articles in this Symposium issue and discusses two central themes of the various Articles: socioeconomic framing of bioethical and healthcare issues, and the challenge of the moral consensus

Detection of H-alpha emission from the Magellanic Stream: evidence for an extended gaseous Galactic halo

We have detected faint, diffuse H$\alpha emission from several points along the Magellanic Stream, using the Rutgers Fabry--Perot Interferometer at the CTIO 1.5-m telescope. At points on the leading edges of the H I clouds MS II, MS III, and MS IV, we detect H$\alpha emission of surface brightness $0.37 \pm 0.02$ Rayleighs, $0.21 \pm 0.04$ R, and $0.20 \pm 0.02$ R respectively, corresponding to emission measures of 1.0 to 0.5 \cmsixpc. We have observed several positions near the MS IV concentration, and find that the strongest emission is on the sharp leading-edge density gradient. There is less emission at points away from the gradient, and halfway between MS III and MS IV the H$\alpha surface brightness is$< 0.04$R. We attribute the H$\alpha emission at cloud leading edges to heating of the Stream clouds by ram pressure from ionized gas in the halo of the Galaxy. These observations suggest that ram pressure from halo gas plays a large role in stripping the Stream out of the Magellanic Clouds. They also suggest the presence of a relatively large density of gas, $n_{\rm H} \sim 10^{-4} cm^{-3}$, in the Galactic halo at $\sim 50$ kpc radius, and far above the Galactic plane, $b \sim -80\deg$. This implies that the Galaxy has a very large baryonic, gaseous extent, and supports models of Lyman-$\alpha and metal-line QSO absorption lines in which the absorption systems reside in extended galactic halos.Comment: 15 pages, aaspp latex, + 1 table & 3 figures. Accepted in A.J. Also available from http://www.physics.rutgers.edu/~bweiner/astro/papers

Diamond drilling for core sampling

The drilling for, and recovery of core samples from the earth's crust, sometimes at distances of up to 3 km from the surface, is subject to many practical problems. One of these problems involves the jamming of core samples inside the recovery cylinder during drilling. There is a need to analyse the forces involved when the recovery cylinder is sliding over the core. Several simple mechanisms associated with naturally occurring variations in rock and soil structure were suggested as possible causes of jamming. The results suggest that the simplest mechanisms are not the cause of the problem, but combinations of these simple mechanisms might well be the cause. The results and discussion indicate some experiments that would be useful in a further study of the problem, and data from the drilling operations that should be kept for further analysis