The low power as a feature of a BIST scheme is a significant target due to quality as well as cost related issues. In this paper we examine the testability of multipliers based on Booth encoding and Wallace tree summation of the partial products and we present a methodology for deriving a low power Built In Self Test (BIST) scheme for them. We propose several design rules for designing the Wall...

This paper presents techniques to reduce power consumption in arithmetic logic units (ALUs) while improving performance. This ultimate paradigm in design takes advantage of varying input widths to enable evaluation with partial ALU activation. We will demonstrate partial ALU evaluations have shorter critical paths; this thus enables us to increase clock speed. Shorter clock time means the circu...

We present an architecture of a high performance decision feedback equalizer based on a computation sharing multiplier. The computation sharing multiplier (CSHMR) uses a redundant number scheme and targets removal of computational redundancy by computation re-use. Use of CSHMR leads to high performance FIR filtering operation by re-using optimal precomputations. A decision feedback equalizer (D...

Motivated by Wallace’s thesis that pilot wave beables should be decoherence-preferred to recover quantum predictions, we consider the relation between pilot wave beables and decoherence. We prove that without any connection between beables and decoherence the overlap between macrcopic states becomes negligible. This is sufficient to recover quantum predictions, so that Wallace’s thesis has to b...

The fact is well known that the theory of eyolution as developed by Darwin was discovered independently and almost simultaneously by Alfred Russel Wallace. The latter, in the course of his newly issued biography,· compbins that his differences of opinion with Darwin are so construed as to imply that he has now abandoned the most essential parts of the theory of natural selection. This, he says,...

1870. United Kingdom. Scenes from a divorce. Alfred Russel Wallace, the coinventor with Darwin of the theory of evolution through natural selection, completely captivated by the melodious song of the sirens hailing spiritualism landed definitively on the controversial shores of the treason. In effect, with his essay The Limits of Natural Selection as Applied to Man, Wallace turned his back on t...

In his famous paper [7], Tarski gave a definition of truth for a formalized language. Unable to perform a direct recursion on the concept itself, he gave a definition in terms of satisfaction. This makes it natural to ask if such an indirect procedure is necessary or whether a definition of truth can be given without using or somehow invoking the concept of satisfaction. The question, as it sta...

This paper reports results from an experimental implementation of Kiyotaki and Wright's (1989) search{theoretic model of money as a medium of exchange. The focus of the experiment is on the role played by at money in this environment. Fiat money is an object that serves as a store of value, but which has no intrinsic value to any individual. The question we address is whether such at objects ma...

Two monuments from an 1855 cadastral survey that span the San Andreas fault in the Carrizo Plain have been right-laterally displaced 11.0 --2.5 m by the 1857 Fort Tejon earthquake and associated seismicity and afterslip. This measurement confirms that at least 9.5 --0.5 m of slip occurred along the main fault trace, as suggested by measurements of offset channels near Wallace Creek. The slip va...