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Now showing items 51-60 of 116
A 6-bit 2GS/s CMOS Time-Interleaved ADC for Analysis of Mixed-Signal Calibration Techniques
(2014)
A 6-bit 2-GS/s time interleaved (TI) successive approximation register (SAR) analog-to-digital converter (ADC) is designed and fabricated in a 0.13 μm CMOS process. The architecture uses 8 time-interleaved track-and-hold ...
A new approach to segmentation of remote sensing images with hidden markov models
(2014)
In this work, we present a new segmentation algorithm for remote sensing images based on two-dimensional Hidden Markov Models (2D-HMM). In contrast to most 2D-HMM approaches, we do not use Viterbi Training, instead we ...
Crossing regions for supersonic cones
(2014)
The original study of a conical body of circular cross section at zero angle of attack inside a supersonic flow was developed by Taylor & Maccoll 1933, see [1]. After this year a large amount of numerical and perturbation ...
Yeasts as biocatalysts in the stereoselective reduction of acetophnone
(2015)
The asymmetric reduction of prochiral ketones represents a pivotal transformation for the
production of chiral alcohols. Several of them are considered as key starting materials in obtaining
of pharmaceuticals. Nowadays, ...
Minor Street Gaps and Capacity at Unsignalized Intersections in Argentina
(2012)
Capacity analysis for two way stop controlled (TWSC) intersections is mainly based on headway acceptance theory. Critical headways and follow up times are fundamental parameters in capacity estimation. Both factors clearly ...
Algorithm model and execution based on Petri Nets in an heterogeneous parallel computer
(2014)
Multicore - MultiGPU systems are frequently used in supercomputers design. The heterogeneity between both types of processors is a source of problems for the parallel programming: disparity in processing throughput and ...
The hydrochemical and isotopic signature of the Middle Paraná River downflow the confluence of Paraguay and Upper Paraná rivers: surface water mixing or groundwater inflow?
(2014)
The Paraná River basin is one of the largest hydrological systems in South America (~2.6
x 106
km
2
). Most large rivers exhibit transverse and longitudinal inhomogeneities downflow
the confluence of tributaries, which ...
Dynamic model for the analysis of productive enviroments in a pseudo crisis phase: The case of demographic ageing
(2013)
: In this paper, the hypothesis of an increasing elderly productive population is assumed in order to preserve the dynamical equilibrium between costs and production in the context of ageing on labour markets that takes ...
Geotechnical Characteristics in Road Tunnels of Sierra Valle Fértil. San Juan. Argentina
(2014)
The Sierra de Valle Fertil is located in the west of Argentina (San Juan province). It is being crossed by the National Road 150 that has 40 km in length including six bidirectional road tunnels with a total length of 2000 ...
Differential effects of tianeptine on dorsal hippocampal volume in rats subjected to early stress and variable chronic stress during adulthood (#382)
(2014)
Neonatal maternal separation induces long-term alterations in the hypothalamicpituitary-adrenal axis and may increase vulnerability to depression when a stressful
situation occurs in adulthood. Some studies, have found ...