Browsing Facultad de Ciencias Exactas, Físicas y Naturales by Language "eng"
Now showing items 1-20 of 129
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3D hydrodynamic modelling to optimize the hydraulic efficiency of the weirs and turbines intakes of the Néstor Kirchner dam in Santa Cruz, Argentina
(2015)In this work 3D hydrodynamic modeling were performed on the weir channel access and the turbines intakes of Nestor Kirchner dam in the province of Santa Cruz (Argentina). Different alternatives of the layout scheme of ... -
A 1.6Gb/s CMOS LVDS Transmitter with a Programmable Pre-Emphasis System
(2014)A 12 parallel low voltage differential signaling (LVDS) transmitter fabricated in 0.13 μm CMOS is presented. Each LVDS channel can operate over 1.6 Gb/s and includes a programmable pre-emphasis circuit designed to ... -
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 image segmentation with two-dimensional hidden Markov models
(2013)Image segmentation is one of the fundamental problems in computer vision. In this work, we present a new segmentation algorithm that is based on the theory of twodimensional hidden Markov models (2D-HMM). Unlike most ... -
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 ... -
A Novel MLSD Receiver Architecture for Nonlinear Channels
(2014)A new architecture for maximum likelihood sequence detection (MLSD) in nonlinear dispersive channels (NLCs) is presented, and its robustness to inaccurate channel knowledge is analyzed. This architecture is developed by ... -
A penalty approach to obtain lower bound buckling loads of imperfection-sensitive shells
(2015)The strategy of Reduced Stiffness (or Reduced Energy) Analysis, in which selected energy components are eliminated to account for mode interaction and imperfection-sensitivity in a simplified way, was developed by Croll ... -
Accelerometer-based hand gesture recognition system for Interaction in digital TV
(2014)This paper presents the design and implementation of a system of accelerometer-based hand gesture recognition. This system will be embedded within a modern remote control to improve human-machine interaction in the ... -
Adsorptive filter for the removal of arsenic in drinking water
(2014)The presence of arsenic in water used for human consumption is a widespread problem in several regions around the world. Cordoba Province at the center of Argentine has aquifers that naturally contain As and are the main ... -
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 ... -
Allantoin accumulation mediated by allantoinase down-regulation and transport by Ureide Permease 5 (UPS5) confers salt stress tolerance to Arabidopsis plants
(2015)In several reports, variations in the content of purine degradation metabolites has been associated with plant responses to different stress conditions and leaf senescence, but the subjacent molecular mechanisms ... -
An Optical Method for a Bomb Scoring System
(2013)This paper discusses an optical method for a bomb scoring system. It is based on two arrays of fixed camera, used as sensors, and it employs trajectory estimation to compute the point of impact of ballistic bombs. It is ... -
Analysis of factors and mechanisms that control growth in the genital disc of drosophila
(2013)The relation among proliferation and death duringgrowth is explained by the competition mechanism. This sees, the cells growth,in relation with their neighbors; if the rhythms of growth are notcoincidental, the lower growing ... -
Analysis of a gaussian process and feed-forward neural networks based filter for forecasting short rainfall time series
(2013)In this paper, an analysis of kernel (GP) and feed-forward neural networks (FFNN) based filter to forecast short rainfall time series is presented. For the FFNN, the learning rule used to adjust the filter weights is based ... -
Antioxidant activity of monoterpenes and synergist antioxidant effect with BHT
(2014)Synthetic antioxidants are used in many foods. Their health safety is questioned. Monoterpenesobtained from essential oils have shown antioxidant activity. The objective of this study was to evaluate the preserving effect ... -
Application of electrical resistivity for the control of water content and density in loess
(2013)Argentinean loess is a typical collapsible soil which strength and stiffness are mainly governed by water content and unit weight. Electrical resistivity of soils depends fundamentally from water content, porosity, and ... -
Asbestiform amphiboles in a marble quarry: A case study from the province of Córdoba (Argentina)
(2014)Pure and impure marbles in Argentina have been exploited for hundreds of years for different purposes. Marble processing is varies depending on its use and could include chemical treatments, burning, crushing, milling ... -
AZG2 transporter plays a key role in auxin/cytokinin lateral root development regulation
(2015)AZG (AZa-Guanin resistant) is a gene family first described in fungi as purine transporters. Two members of this family, Azg1 and Azg2, are encoded in the Arabidopsis genome. Although they are able to transport purines ... -
Batman adv. Mesh network emulator
(2015)We introduce a new network emulator environment, deve-loped by our research group, called BAMNE. Our emulator is designedspecifically to work with B.A.T.M.A.N. Adv. Mesh Protocols. This meshnetwork emulator, allow to test ... -
Behavior of collapsible loess saturated with NAPL in confined compresion tests
(2015)Loess from the central area of Argentina are unstable soils with mechanical properties highly dependent on moisture content. These soils have a macro skeleton that collapses when either loads increase and/or water enter ...