How to find real-world applications for compressive sensing

The potential of compressive sensing (CS) has spurred great interest in the research community and is a fast growing area of research. However, research translating CS theory into practical hardware and demonstrating clear and significant benefits with this hardware over current, conventional imaging techniques has been limited. This article helps researchers to find those niche applications where the CS approach provides substantial gain over conventional approaches by articulating lessons learned in finding one such application; sea skimming missile detection. As a proof of concept, it is demonstrated that a simplified CS missile detection architecture and algorithm provides comparable results to the conventional imaging approach but using a smaller FPA. The primary message is that all of the excitement surrounding CS is necessary and appropriate for encouraging our creativity but we all must also take off our "rose colored glasses" and critically judge our ideas, methods and results relative to conventional imaging approaches.Comment: 10 page

Calibrating pressure switch

A pressure switch assembly comprising a body portion and a switch mechanism having a contact element operable between opposite limit positions is described. A diaphragm chamber is provided in the body portion which mounts therein a system diaphragm and a calibration diaphragm which are of generally the same configuration and having outer faces conforming to the inner and outer walls of the diaphragm chamber. The space between the inner faces of the diaphragms defines a first chamber section and the space between the outer face of one of the diaphragms and the outer wall of the diaphragm chamber defines a second chamber section. The body portion includes a system pressure port communicating with one of the chamber sections and a calibration pressure port communicating with the other chamber section. An actuator connected to one of the diaphragms and the contact element of the switch operates upon pressure change in the diaphragm sections to move said contact element between limit positions

The automated generalisation of small scale topographic maps, with particular reference to the Ordnance Survey 1:50,000 scale maps

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Consumer boycotts and consumer sovereignty

Cranfield School of Managemen

Ethics and geographical equity in health care

Important variations in access to health care and health outcomes are associated with geography, giving rise to profound ethical concerns. This paper discusses the consequences of such concerns for the allocation of health care finance to geographical regions. Specifically, it examines the ethical drivers underlying capitation systems, which have become the principal method of allocating health care finance to regions in most countries. Although most capitation systems are based on empirical models of health care expenditure, there is much debate about which needs factors to include in (or exclude from) such models. This concern with legitimate and illegitimate drivers of health care expenditure reflects the ethical concerns underlying the geographical distribution of health care finance

Truth, Lies, and Copyright

Fake news may be trending right now, but fake news is not the only source of fake facts that we consume. We encounter fake facts every day in the historical or biographical books we read, the movies we watch, the maps we study, the tele-phone directories and dictionaries we reference, and the religious or spiritual guides we consult. While it is well-established that copyright does not protect facts because facts are discovered rather than created, fake facts are created and can often be as original and creative as fiction. This Article is the first to offer a comprehensive analysis of copyright protection of fake facts contained in fake news and other sources. It details the different categories of fake facts we encounter today and courts’ inconsistent protection of fake facts under copyright law. Even though copyright law may technically protect fake facts as original expression fixed in a tangible medium, this Article argues that the public interest in promoting efficiency, fairness, and production of socially valuable works justify treating fake facts as unprotectable facts under copyright law. Specifically, courts should apply copyright law’s factual estoppel doctrine to treat fake facts as unprotectable facts in infringement cases where an author previously held out fake facts as facts, with the intent that the public rely on the fake facts as facts, if the public could believe the fake facts to be true

Unintended consequences: local housing allowance meets the right to buy

Recent rapid expansion of the Private Rented Sector (PRS) is recognised but the extensive involvement of ex local authority stock in this new PRS is not. This paper uses existing literature to outline the commodification processes through which Right to Buy (RTB) housing enters the PRS. Other published research is used to estimate a likely range of council to PRS tenure change over 30 years of RTB in the UK. Then using detailed data matching, we present one local authority example at individual dwelling level across the whole stock to establish the true scale of this transfer from council housing to private rental. Finally, to stimulate debate about the revenue cost of this switch of rental tenures we speculate on the additional annual cost of Housing Benefit support to this ex RTB stock given that the PRS is invariably more expensive than council renting for equivalent dwellings. This may well be over £1bn per year. We conclude that UK government’s plans to expand the RTB scheme will simply increase revenue costs year on year for no discernable social or housing supply benefit

The influence of linguistic and social factors on the recent decline of French ne

In this article we present some results showing the decline in radio speech in the use of the French negative particle ne over the last forty years or so. These results derive from a comparison of two radio corpora: an archival corpus recorded by Ågren (1973) in 1960–61. The second, contemporary corpus was recorded and analysed by one of the present authors (Smith) in 1997. Having described the variable in question, we present these corpora in turn and analyse results deriving from them. We then examine some of the linguistic constraints that endorse the progressive decline of ne in some contexts while hindering the process in others. Finally we consider some elements of the social context within which the decline of ne has been occurring