This paper describes a library of parameterized arithmetic operators for manipulating high-dynamic numbers on FPGA. It support both floating-point and logarithmic representations. Along with its direct interest, that library allow application-specific comparisons of those two number representation systems. It is unbiased in the sense that it tends to reflect the state-of-the-art for both number...

The 2-dimensional logarithmic number system (2DLNS), a subset of the multi-DLNS (MDLNS), which has similar properties to the classical Logarithmic Number System (LNS), provides more degrees of freedom than the LNS by virtue of having two orthogonal bases and has the ability to use multiple 2DLNS components, or digits. The second base in 2DLNS can be adjusted to improve the representation space ...

Residual gas analysis may be time consuming if the identification of all species and their quantitative contribution to mass spectrum is required. This because partial pressures residual cover several orders magnitudes fragmentation patterns are in general convoluted. Noise, offset, limited ranges analysers used UHV applications further reduce sensitivity a spectrum. In this work, authors propo...

objective: yield components and genetic contribution have the most important in final yield and breeding programs of crop plants. for this purpose, 20 varieties of grapevines with russia origin were evaluated in urmia and takestan research station (under full irrigation and drought stress). methods: twenty grapevine genotypes were evaluated in urmia and takestan research station (under full irr...

In this study, 65 kinds of wood samples were classified by using artificial neural networks based on the measured value thermal physical parameters. First, conductivities and diffusion coefficients measured. The transient temperature rise curve during test process was recorded, characteristic values extracted logarithmic fitting. emissivity spectrum representing properties surface measured, spe...

Running of gauge couplings on a slice of AdS5 is examined using the deconstruction setup. Logarithmic running instead of (linear) power law is justified when the cutoff is lower than the curvature scale. Most of interesting features including the localization of Kaluza-Klein modes and the widening of higher Kaluza-Klein spectrum spacing are well captured within the framework of deconstruction. ...

We study the application of a library of orthonormal bases to the reduction of correlated Gaussian noise. A joint condition on the library and the noise covariance is derived which ensures that simple thresholding in an adaptively chosen basis yields an estimation error within a logarithmic factor of the ideal risk. In the model example of a wavelet packet library and stationary noise the condi...

We develop the relation between de Sitter holography and inflation in detail with particular attention to cosmic density perturbations. We set up the Hamilton-Jacobi formalism to present a systematic treatment of the logarithmic corrections to a scale invariant spectrum. Our computations can be interpreted without reference to holography, as strong infra-red effects in gravity. This point of vi...

Starting from the relation between the kinetic energy of a free Lévy–Schrödinger particle and the logarithmic characteristic of the underlying stochastic process, we show that it is possible to get a precise relation between renormalizable field theories and a specific Lévy process. This subsequently leads to a particular cutoff in the perturbative diagrams and can produce a phenomenological ma...

Solution of the Fokker-Planck equation with a logarithmic potential and mixed eigenvalue spectrum F. Guarnieri,1,a) W. Moon,1,2,3,b) and J. S. Wettlaufer1,4,c) 1Nordic Institute for Theoretical Physics (NORDITA), 106 91 Stockholm, Sweden 2British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom 3Department of Mathematics, Stockholm University 106 91 Stockholm, Swe...