Resultados totales (Incluyendo duplicados): 46346
Encontrada(s) 4635 página(s)
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5CCZG
Dataset. 2023

GRFORM: MODELING OF DROOP-CONTROLLED GRID-FORMING INVERTER IN PSSE

  • Ledesma Larrea, Pablo
A positive sequence user model in PSSE that represents a droop-controlled, grid-forming inverter.

The model is described here: Du, W., Liu, Y., Huang, R., Tuffner, F. K., Xie, J., & Huang, Z. (24-28 April 2022). Positive-Sequence Phasor Modeling of Droop-Controlled, Grid-Forming Inverters with Fault Current Limiting Function [proceedings]. 2022 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), New Orleans, LA, USA. https://doi.org/10.1109/ISGT50606.2022.9817530

Usage: Compile the user model with a Fortran compiler compatible with your PSSE version into a dynamic library, e.g. grform.dll. Link the *.dll file with the PSSE skeleton Create the corresponding entries in the PSSE dynamic data *.dyr file, for example: 1234 'USRMDL' 1 'GRFORM' 1 0 0 13 7 2 0.15 0.05 0.0 5.86 1.2 0.0 0.01 1.0 0.0 0.01 0.1 0.01 2 / Run a dynamic simulation in PSSE

DOI: https://doi.org/10.21950/O5CCZG
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5CCZG
HANDLE: https://doi.org/10.21950/O5CCZG
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5CCZG
PMID: https://doi.org/10.21950/O5CCZG
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5CCZG
Ver en: https://doi.org/10.21950/O5CCZG
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5CCZG

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5QCPU
Dataset. 2024

ABSELL-FEDERICO-TENA WORLD TRADE HISTORICAL DATABASE 1948-2020 : HONDURAS

  • Absell, Christopher
  • Federico, Giovanni
  • Tena Junguito, Antonio
Project developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Honduras

DOI: https://doi.org/10.21950/O5QCPU
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5QCPU
HANDLE: https://doi.org/10.21950/O5QCPU
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5QCPU
PMID: https://doi.org/10.21950/O5QCPU
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5QCPU
Ver en: https://doi.org/10.21950/O5QCPU
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5QCPU

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5RETT
Dataset. 2019

ISABEL CORDERO Y AQUILINO SOLÍS (HERRERA DE ALCÁNTARA). VIDA FAMILIAR Y LABORAL DE LOS INFORMANTES

  • Álvarez Pérez, Xosé Afonso (coord.)
Biografía laboral del informante. La emigración. Pozo y grifo en el patio, donde duchaba a los niños. Juegos en el patio. Los niños en la escuela., Biografia laboral do informante. Emigração. Poço, e torneira no pátio, onde dava banho às crianças. Jogos no recreio. Crianças na escola., Work biography of the informant. Emigration. Well and tap in the courtyard, where she showered the children. Games in the playground. Children at school.

DOI: https://doi.org/10.21950/O5RETT
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5RETT
HANDLE: https://doi.org/10.21950/O5RETT
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5RETT
PMID: https://doi.org/10.21950/O5RETT
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5RETT
Ver en: https://doi.org/10.21950/O5RETT
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O5RETT

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O7TAFL
Dataset. 2024

EXPERIMENTAL AND ARCHAEOLOGICAL BIFACE 3D COMPILATION

  • Torres Navas, Concepción
  • Baena Preysler, Javier

This is a dataset of experimental replicas and archaeological bifaces from the Lower and Middle Paleolithic of the Iberian Peninsula.

The dataset will be in.WRL 3D format, with a high enough resolution. It provides relevant information for a 3D morphometric analysis and focuses on identifying skill technological levels.

Models have been scanned by using 3D scanners Artec Spider, Netengine and Artec Micro II, and processed using different 3D modeling software.

This compilation will include two different files: experimental and archaeological files.

  • The experimental will be classified by skill technologies and will differentiate novices, apprentices, high-skill apprentices and finally, experts. The archaeological will be divided on the basis of the archaeological site and the stratigraphic level.
  • The archaeological will be divided on the basis of the archaeological site and the stratigraphic level.

DOI: https://doi.org/10.21950/O7TAFL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O7TAFL
HANDLE: https://doi.org/10.21950/O7TAFL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O7TAFL
PMID: https://doi.org/10.21950/O7TAFL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O7TAFL
Ver en: https://doi.org/10.21950/O7TAFL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O7TAFL

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O8N39P
Dataset. 2024

PRINCIPIOS PEDAGÓGICOS DEL APRENDIZAJE UBICUO

  • Esteban Vázquez-Cano
  • Mª Luisa Sevillano García
  • Mª Paz Trillo Miravalles
El libro ha sido elaborado en gran parte con los resultados de una investigación realizada en el marco y con la ayuda evaluadora y económica del proyecto público y competitivo de la convocatoria 2010. Referencia:EDU 2010-17420 (subprograma educ) titulado aprendizaje ubicuo con dispositivos móviles: elaboración y desarrollo de un mapa de competencias en educación superior y del que fueron miembros investigadores la totalidad de autores del libro.

Proyecto: //
DOI: https://doi.org/10.21950/O8N39P
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O8N39P
HANDLE: https://doi.org/10.21950/O8N39P
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O8N39P
PMID: https://doi.org/10.21950/O8N39P
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O8N39P
Ver en: https://doi.org/10.21950/O8N39P
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O8N39P

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9TDMF
Dataset. 2018

LEAN DENDROCHRONOLOGY: A PROPOSAL

  • Villalba-Diez, Javier
  • Ordieres-Meré, Joaquín
  • Molina, Martín
  • Rossner, Marisa
  • Lay, Maren
Research project looking to develop a comprehensive proposal enabling higher transparency levels between short term performance levels and the strategic design of the organization. Descripción del dataset: Normalized KPIs are provided as well as the references for the R scripts making it possible to generate the condensed representation given

Proyecto: //
DOI: https://doi.org/10.21950/O9TDMF
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9TDMF
HANDLE: https://doi.org/10.21950/O9TDMF
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9TDMF
PMID: https://doi.org/10.21950/O9TDMF
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9TDMF
Ver en: https://doi.org/10.21950/O9TDMF
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9TDMF

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9UOUQ
Dataset. 2024

ABSELL-FEDERICO-TENA WORLD TRADE HISTORICAL DATABASE 1948-2020 : TRINIDAD AND TOBAGO

  • Absell, Christopher
  • Federico, Giovanni
  • Tena Junguito, Antonio
Project developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Trinidad and Tobago

DOI: https://doi.org/10.21950/O9UOUQ
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9UOUQ
HANDLE: https://doi.org/10.21950/O9UOUQ
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9UOUQ
PMID: https://doi.org/10.21950/O9UOUQ
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9UOUQ
Ver en: https://doi.org/10.21950/O9UOUQ
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/O9UOUQ

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OBYUCV
Dataset. 2020

ACOUSTIC IMPULSE RESPONSE FOR THE DETECTION OF INTERNAL QUALITY IN SEEDLESS WATERMELON

  • Diezma Iglesias, Belén
  • Barreiro Elorza, Pilar
  • Ruiz Altisent, Margarita

Recent commercialisation of seedless watermelon varieties relies on the guarantee of a high quality product. Several internal defects may deteriorate greatly this fruit: (a) creases and/or large voids in the flesh, (b) overripeness and (c) bruises due to impact. The objective of this research was to develop a feasible non-destructive procedure for detecting these defects in individual fruits, based on acoustic impulse response.

A device consisting of a microphone, structural elements and a mechanical impact generator was designed and tested. Good and defective seedless watermelons were tested with the acoustic device. Spectral parameters were examined as potential non-destructive predictors of internal disorders. Waveband magnitude parameters, obtained by summing the magnitude of the spectrum between two frequencies in a specified band width (always including between 40 and 500 Hz), were the acoustic parameters showing the best ability to detect internal disorders.

Dataset description

The acoustic response of 158 watermelons measured by hitting the fruit with an impactor and detecting the output sound by a microphone on the opposite side and 90º (as referred in derived publication and PhD thesis, see further details in this file)

Metodology

Each watermelon was acoustically excited on two positions, both around the equator and rotated 908. Nine measurements, divided in groups of three repetitions for the same location, together with three locations were performed at each position, therefore 18 measurements in each fruit. Positions identify the different areas of fruit where the impact is applied, locations indicate that the fruit is taken and relocated on the same position after some time, and repetitions refer to repeated data taken without changing or touching the fruit.

Acoustic measurements were taken with a device designed and tested by consecutive phases of approximation to the final solution. The laboratory recording system used to acquire the acoustic impulse information is comprised a prepolarised free-field 12mm microphone type 4189 B&K, of a frequency range from 6 3 to 20 kHz and a sensitivity of 50mVPa 1. A signal conditioning amplifier NEXUS B&K supplied power and provided electrical loading to the transducer, amplified the signal, provided appropriate output drive signal and facilitated the selection of the optimum band-pass filters. A microphone preamplifier type 2673 B&K completed the recording system. The preamplifier amplified the signal from the microphone.

A user friendly Windows-based software, ‘SanSon 1 2’, was developed for the control of the process and the register of data, providing an easy output to be used with Microsoft Excel. The software shows in the screen the acoustic signal ‘time versus intensity’ for each test, and saves it in an ASCII file.

A fast Fourier transform (FFT) of the signal was performed to determine the frequency spectrum, and subsequently, the natural frequencies of the watermelons. Sampling at 40 kHz for 4096 points results in a frequency resolution for the FFT of 9 766 Hz. A normalised spectrum was obtained by dividing the magnitude at each frequency by the maximum magnitude of the spectrum (see publication). Different acoustic parameters were evaluated for spectral characterisation: resonant frequency, maximum amplitude of the spectrum and band magnitude (BM) of the acoustic spectrum. The frequency resolution for the spectrum (9 766 Hz) is not very narrow. Therefore it is difficult to obtain a good segregation based on the resonant frequency, unless higher differences than the resolution occur between hollow and sound watermelons. This handicap may be overcome by defining the integral in the spectrum or BMs.


DOI: https://doi.org/10.21950/OBYUCV
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OBYUCV
HANDLE: https://doi.org/10.21950/OBYUCV
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OBYUCV
PMID: https://doi.org/10.21950/OBYUCV
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OBYUCV
Ver en: https://doi.org/10.21950/OBYUCV
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OBYUCV

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OCSRBX
Dataset. 2016

TRANSIENT STABILITY CONSTRAINED OPTIMAL POWER FLOW GAMS MODEL GENERATOR ON PYTHON

  • Ledesma Larrea, Pablo
Transient Stability Constrained Optimal Power Flow (TSCOPF) is a nonlinear optimization problem used to perform economic dispatches while ensuring transient stability. This paper proposes a multi-contingency TSCOPF model that retains the dynamics of all generators and includes a transient synchronous generator dq-axis model. Program write_tscopf.py automatically reads the system data from standard PSSE raw files, builds the TSCOPF model tscopf.gms on high-level modelling system GAMS and solves it using a non-heuristic Interior Point algorithm. This approach facilitates the application of the model to a variety of systems and scenarios. Data for the New England 39 Bus System and the IEEE 118 Bus system are included.

DOI: https://doi.org/10.21950/OCSRBX
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OCSRBX
HANDLE: https://doi.org/10.21950/OCSRBX
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OCSRBX
PMID: https://doi.org/10.21950/OCSRBX
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OCSRBX
Ver en: https://doi.org/10.21950/OCSRBX
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/OCSRBX

e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/ODLGBL
Dataset. 2023

MARÍA Y VENTURA (SAN BENITO DE LA CONTIENDA). TRABAJOS DEL CAMPO. PLANTAS Y ANIMALES

  • Álvarez Pérez, Xosé Afonso (coord.)
El informante Ventura fue carbonero. Principales trabajos del campo. Tipos de árboles antes y ahora (repueblan con encinas). Árboles frutales. Olivares. No se hacía vino. La matanza solo la hacían las personas más pudientes, aunque progresivamente se fue generalizando. Ganado caprino, ovino y vacuno., O informante Ventura era carvoeiro. Principais empregos no campo. Tipos de árvores de então e agora (repovoadas com azinheiras). Árvores de fruto. Olivais. Não se fazia vinho. A matança só era praticada pelas pessoas mais ricas, embora gradualmente se tenha tornado mais generalizada. Caprinos, ovinos e bovinos., The informant Ventura was a charcoal maker. Main jobs in the countryside. Types of trees then and now (repopulated with holm oaks). Fruit trees. Olive groves. No wine was made. Slaughtering was only done by the wealthiest people, although it gradually became more widespread. Goats, sheep and cattle.

DOI: https://doi.org/10.21950/ODLGBL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/ODLGBL
HANDLE: https://doi.org/10.21950/ODLGBL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/ODLGBL
PMID: https://doi.org/10.21950/ODLGBL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/ODLGBL
Ver en: https://doi.org/10.21950/ODLGBL
e-cienciaDatos, Repositorio de Datos del Consorcio Madroño
doi:10.21950/ODLGBL

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