Leeward centerline and side fuselage entry heating predictions for the space shuttle orbiter

Heat transfer data measured along the leeward centerline and on the side fuselage of the Space Shuttle orbiter during STS-2 and STS-3 are compared with predictions of empirical heating techniques derived from wind tunnel tests. Steps required to extrapolate an existing leeward centerline theory to flight conditions are described. Generally favorable comparisons from Mach 24 down to approximately Mach 7 for both flights are presented. The side fuselage impingement heating method is currently under development, but some preliminary results are available. The method is briefly described and compared with wind tunnel and flight measurements. Side heating predictions are given for an STS-3 trajectory point near Mach 10 showing good agreement with flight data. There is evidence of embedded vortices emanating from the side fuselage impingement line which significantly enhance local heating rates at both wind tunnel and flight conditions

An Interpreter for Quantum Circuits

This paper describes an ACL2 interpreter for "netlists" describing quantum circuits. Several quantum gates are implemented, including the Hadamard gate H, which rotates vectors by 45 degrees, necessitating the use of irrational numbers, at least at the logical level. Quantum measurement presents an especially difficult challenge, because it requires precise comparisons of irrational numbers and the use of random numbers. This paper does not address computation with irrational numbers or the generation of random numbers, although future work includes the development of pseudo-random generators for ACL2.Comment: In Proceedings ACL2 2013, arXiv:1304.712

History, design and performance of the space shuttle hazardous gas detection system

The Hazardous Gas Detection System (HGDS) is designed to detect leaks hich could result in pre-launch or in-flight fires or explosions resulting from the presence of cryogenic rocket propellants. The historical development, design, and performance of the HGDS is discussed. Data for response time, detection limits, accuracy, and drift are presented. Finally, present and future applications are discussed, and some general conclusions are drawn

Urban 'disorders', 'problem places' and criminal justice in Scotland

[About the book] The existence of the separate criminal jurisdiction in Scotland is ignored by most criminological texts purporting to consider crime and criminal justice in 'Britain' or the 'UK'. This book offers a critically-informed analysis and understanding of crime and criminal justice in contemporary Scotland. It considers key areas of criminal justice policy making in Scotland; in particular the extent to which criminal justice in Scotland is increasingly divergent from other UK jurisdictions as well as pressures that may lead to convergences in particular areas, for instance, in relation to trends in youth justice and penal policy. The book considers the extent to which Scottish crime and criminal justice is being affected both by devolution as well as the wider pressures resulting from globalization, Europeanisation and new patterns of migration. While the book has a Scottish focus, it also offers new ways of thinking about criminal justice – relating these issues to wider social divisions and inequalities in contemporary Scottish and UK society. It extends the ‘gaze’ and analysis of criminology by exploring issues such as environmental crime, urban disorder and the new urbanism as well as crimes of the rich and powerful and corporate crime, giving it a relevance and resonance far beyond Scotland. Criminal Justice in Scotland will be an essential text for students in Scotland taking courses in criminology, sociology, social policy, social sciences, law and police sciences, as well as criminal justice practitioners and policy makers in Scotland. It will also be an essential source for students of comparative criminology elsewhere and academics wishing to take Scotland into account in thinking about criminal justice in the UK