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114 resultados encontrados.

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Investigating the Numerical solution of the BoltzmannTransport Equation in silicon in Momentum Space Using Computational Systems of Different Dimensions
Artículo
Acceso abierto Artículo DOAJ
Mumtaz Hussien et al · University of Mosul, College of Education for Pure Science · 2020 · ISSN 1812-125X
Abstract The Boltzmann transport equation is the basic equation for solving the transport of charge carrier (electrons, holes) problems in semiconductor devices. The distribution function has been obtained from the solut...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
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Modeling variability of the lactation curves of cows in automated milking systems
Artículo
Acceso abierto Artículo CONICET Digital
Masía, Fernando et al · American Dairy Science Association · 2020 · ISSN 8189-8196
Historically, cow selection criteria were developed for conventional milking systems that have regular milking intervals (MI). However, in automatic milking systems (AMS), there is variability in MI within and between co...
Idioma eng
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Open Access
Shift workers in electrical systems control rooms: job satisfaction and work ability
Artículo
Acceso abierto Artículo DOAJ
Amanda Aparecida Silva et al · Thieme Revinter Publicações Ltda · 2012 · ISSN 1984-0659
Objectives: The objectives of this study were to analyze the relationship between job satisfaction and work ability and to identify factors associated with job dissatisfaction. Methods: This is a cross-sectional study of...
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Towards energy-efficient massive MIMO-NOMA systems with sigma–delta ADCs and group SIC detection
Artículo
Acceso abierto Artículo DOAJ
Samar I. Farghaly et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract This paper investigates a massive MIMO–NOMA system in which the base station (BS) employs a large antenna array with low-resolution (1–2-bit) spatial Sigma–Delta (ΣΔ) ADCs to shape and suppress quantizat...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
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Uncertainty relation for the optimization of optical-fiber transmission systems simulations
Artículo
Acceso abierto Artículo RI ITBA
Tolisano, T. et al · RI ITBA · 2018 · ISSN 1094-4087
“The mathematical inequality which in quantum mechanics gives rise to the uncertainty principle between two non commuting operators is used to develop a spatial step-size selection algorithm for the Split-Step Fourier ...
Idioma en
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Open Access
Post-silicon Validation Procedure for a PWL ASIC Microprocessor Architecture
Artículo
Acceso abierto Artículo CONICET Digital
Lifschitz, Omar D. et al · Institute of Electrical and Electronics Engineers · 2011 · ISSN 1548-0992
In this paper, we present the environment set for validation and testing a particular ASIC that implements a piecewise linear (PWL) architecture. Description for a package debug propose is included. Methodologies for pow...
Idioma eng
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Open Access
Adaptive state-feedback echo state networks for temporal sequence learning
Artículo
Acceso abierto Artículo DOAJ
Codrin A. Lupascu et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract Echo State Networks are recurrent neural networks that leverage a random reservoir’s dynamics, training only a simple readout layer. This approach is computationally efficient but limits network performance. B...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
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A new self scaling PCG algorithm with dynamical retards
Artículo
Acceso abierto Artículo DOAJ
ABBAS Y. AL-BAYATI et al · University of Mosul, College of Education for Pure Science · 2008 · ISSN 1812-125X
Abstract The problem of optimizing a certain systems as a function of time may be formulated in terms of maximizing or minimizing a non-linear cost function. It was found that a Dynamic Programming (DP) algorithm was par...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
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Logical Role-Separated RLNC for Low-Latency Satellite Downlinks With Opportunistic Loss Recovery
Artículo
Acceso abierto Artículo DOAJ
Patrick Enenche et al · IEEE · 2026 · ISSN 2169-3536
Reliable low-latency delivery over satellite downlinks remains fundamentally constrained by long propagation delays, burst-correlated packet loss, and the limited effectiveness of retransmission-based recovery. Although ...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Nemesis: A multi-scale, multi-physics algorithm for astrophysics
Artículo
Acceso abierto Artículo DOAJ
Hochart E. et al · EDP Sciences · 2026 · ISSN 0004-6361
Context. Astronomical environments are governed by a complex interplay of physical processes, including gravitational dynamics, radiative transfer, stellar evolution, chemistry, and hydrodynamics. These processes span a ...
LCC TENDOkFzdHJvbm9teQ~~Idioma eng
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Optical wavefront shaping based on functional metasurfaces
Artículo
Material complementario disponible Artículo DOAJ
Wei Qunshuo et al · Wiley · 2020 · ISSN 2192-8614
Regarded as a kind of smart surfaces, metasurfaces can arbitrarily tailor the amplitude, phase, and polarization of light. Metasurfaces usually consist of subwavelength nanoantenna or nanoresonator arrays, which are deli...
LCC TENDOlBoeXNpY3M~Idioma eng
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Sistemas no lineales en cosmología
Artículo
Acceso abierto Artículo Redalyc
Tonatiuh Matos et al · Universidad Autónoma del Estado de México · 2001 · ISSN 1405-0269
This paper presents a resume of results obtained recently in the context of cosmology. We see how systems with escalating fields that can resolve the riddle of dark matter also can have a non linear comportment of the s...
Idioma es
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Stochastic Optimization to Reduce Aircraft Taxi-in Time at IGIA, New Delhi
Artículo
Acceso abierto Artículo DOAJ
RAJIB DAS et al · Embry-Riddle Aeronautical University · 2023 · ISSN 2374-6793
Since there is an uncertainty in the arrival times of flights, pre-scheduled allocation of runways and stands and the subsequent first-come-first-served treatment results in a sub-optimal allocation of runways and stands...
LCC LCC:Motor vehicles. Aeronautics. AstronauticsIdioma eng
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Open Access
System Safety Modeling of Alternative Geofencing Configurations for small UAS
Artículo
Acceso abierto Artículo DOAJ
James T. Luxhoj · Embry-Riddle Aeronautical University · 2016 · ISSN 2374-6793
As is well known, the integration of small Unmanned Aircraft Systems (sUAS) or “drones” into the National Airspace System (NAS) has captured significant industry, academic, regulatory and media attention. For sUAS th...
LCC LCC:Motor vehicles. Aeronautics. AstronauticsIdioma eng
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Open Access
TRANSFORMATION OF THE DIGITAL TOURISM SYSTEM: FROM INTELLIGENT AGENTS TO AGENTIC AI
Artículo
Acceso abierto Artículo DOAJ
Hanna Mykhailichenko et al · Izdevnieciba “Baltija Publishing” · 2026 · ISSN 2256-0742
The purpose of the paper is to examine the structural and functional transformation of the digital tourism ecosystem during the transition from traditional intelligent assistants, such as LLM-based chatbots, to a new par...
LCC LCC:Economic growth, development, planningIdioma eng
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Open Access
The concept of exponential function in the context of Vergnaud Theory
Artículo
Acceso abierto Artículo CONICET Digital
Otero, Maria Rita et al · Maryland Institute of Research · 2013 · ISSN 2167-9045
In order to teach exponential functions as well as to study the process of conceptualization through Vergnaud Theory of Conceptual Fields, a didactic sequence was designed. The sequence was tested with four groups of stu...
Idioma eng
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Open Access
The edaphic macrofauna in three components of the coffee plant arrangement associated with different management typologies, Antioquia, Colombia
Artículo
Acceso abierto Artículo DOAJ
Nayla Robaina Rodríguez et al · Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo · 2019 · ISSN 0370-4661
The balance and sustainability of coffee agroecosystems in southwestern Antioquia depend on the interactions and synergisms that take place above and below the ground. Within these, the functional groups of edaphic macro...
LCC LCC:Agriculture; TENDOkZvb2QgcHJvY2Vzc2luZyBhbmQgbWFudWZhY3R1cmU~Idioma eng
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Traffic-related impacts on air quality around student housing in Malang, Indonesia
Artículo
Material complementario disponible Artículo DOAJ
Muhammad Evan Wahyudi Putra et al · Centre for Science and Technology, IAIN Surakarta · 2026 · ISSN 2549-1245
Urban air pollution from traffic emissions poses a significant risk to students residing in student communal housing (SCH) near major roadways. This study investigates the impact of peak hour traffic on ambient air quali...
LCC TENDOkVudmlyb25tZW50YWwgZW5naW5lZXJpbmc~; TENDOkVudmlyb25tZW50YWwgc2NpZW5jZXM~Idioma eng
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Design approach of discrete-time resonant controllers for uninterruptible power supply applications through frequency response analysis
Artículo
Acceso abierto Artículo CONICET Digital
Carballo, Roberto Esteban et al · Institution of Engineering and Technology · 2016 · ISSN 2871-2879
A new methodology to design discrete-time multiple resonant controllers for single-phase uninterruptible power supply inverters is proposed in this study. This methodology is based on classical linear tools and consists ...
Idioma eng
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Impact of data space augmentation strategy on model accuracy and generalization in thin-section rock classification
Artículo
Material complementario disponible Artículo DOAJ
Magdalena Habrat et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract The growing importance of machine learning in geological data computing, as well as in the broader geoscience and energy sectors, makes it essential to evaluate the impact of data augmentation on model performan...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
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A Hybrid Spatio-Temporal transformer with Temporal Aggregation and Spatial Memory for traffic flow prediction
Artículo
Material complementario disponible Artículo DOAJ
Linlong Chen et al · SpringerOpen · 2026 · ISSN 2196-1115
Abstract Traffic flow prediction is a fundamental building block for Intelligent Transportation Systems (ITS), enabling proactive congestion mitigation, adaptive traffic signal control, and reliable route guidance. Howev...
LCC TENDOkNvbXB1dGVyIGVuZ2luZWVyaW5nLiBDb21wdXRlciBoYXJkd2FyZQ~~; TENDOkluZm9ybWF0aW9uIHRlY2hub2xvZ3k~; LCC:Electronic compuIdioma eng
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A Rigorous Mathematical Formulation for the Scheduling of Tree-Structure Pipeline Networks
Artículo
Acceso abierto Artículo CONICET Digital
Cafaro, Diego Carlos et al · American Chemical Society · 2011 · ISSN 5064-5085
Pipeline networks are the dominant mode of conveying a wide variety of oil refined products from refineries to distribution terminals. Pipeline infrastructure usually comprises trunk lines serving high-volume, long-haul ...
Idioma eng
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Open Access
A multi-stage strategy and geoscience knowledge-based method for shoreline extraction from Landsat time-series
Artículo
Material complementario disponible Artículo DOAJ
Chao Chen et al · Elsevier · 2026 · ISSN 2665-9727
Shoreline resources constitute one of the most critical terrestrial elements, as they play a pivotal role in fluvial-lacustrine monitoring and the sustainable utilization of spatial resources. As the longest and most eco...
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ANFIS and RBFNN Efficacy and Timescale Dependence in SPEI-Based Drought Prediction using Meteorological Inputs
Artículo
Acceso abierto Artículo DOAJ
Alisa Afendi et al · MMU Press · 2026 · ISSN 2821-370X
Drought is a slow-onset natural disaster that has far-reaching effects on agriculture, water security, and socio-economic systems, especially in climate-vulnerable countries such as Malaysia. It is imperative to predict ...
LCC LCC:Electronic computers. Computer science; TENDOkluZm9ybWF0aW9uIHRlY2hub2xvZ3k~Idioma eng
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