Results 21 to 30 of about 480,917 (191)

Flujo de potencia óptimo para redes radiales y enmalladas empleando programación semidefinida

TecnoLógicas, 2017
Este artículo presenta una formulación convexa para el problema de flujo de potencia óptimo (Optimal Power Flow-OPF) en sistemas de potencia radiales y enmallados, a través de un modelo matemático basado en programación semidefinida (Semidefinite Programming-SDP), el cual trasforma el modelo cuadrático no convexo del OPF en un modelo convexo relajado ...
Montoya-Giraldo, Oscar D., Gil-González, Walter J., Garcés-Ruíz, Alejandro   +2 more
openaire   +4 more sources

Perspectivas de las ecuaciones biocinéticas y balance de materia para un biorreactor de flujo radial de células hepáticas

Cultura Científica y Tecnológica, 2023
Los biorreactores son una de las soluciones que propone la ingeniería de tejidos para las principales enfermedades en México. Las matemáticas pueden determinar parámetros biocinéticos, que crean mecanismos para optimizar las condiciones de operación. Por lo tanto, la presente investigación tiene como objetivo diseñar un modelo matemático dinámico que ...
Héctor Adrián Ramírez Núñez, Juan Odin Ramírez Fernández, Jesús Abraham Castorena Peña, Jesús Emilio Camporredondo Saucedo, Omar Anaya Reza   +4 more
openaire   +1 more source

Orthogonal least squares algorithm for training multi-output radial basis function networks [PDF]

, 1991
A constructive learning algorithm for multioutput radial basis function networks is presented. Unlike most network learning algorithms, which require a fixed network structure, this algorithm automatically determines an adequate radial basis function ...
S. Chen, Cowan, C. F. N., Chen, Sheng, Grant, P. M., P.M. Grant, C.F.N. Cowan, Cowan, C.F.N., Grant, P.M., Chen, S.   +8 more
core   +1 more source

Radial versus Femoral Approach for Left Ventricular Endomyocardial Biopsy. [PDF]

, 2019
AIMS: Left ventricular endomyocardial biopsy (LV-EMB) is mostly performed via the femoral artery. We assessed the feasibility and safety of radial versus femoral access in patients undergoing LV-EMB.
Mamas
core   +1 more source

Hyperspectral outcrop models for palaeoseismic studies

The Photogrammetric Record, Volume 34, Issue 168, Page 385-407, December 2019., 2019
To overcome the limitations of the traditional study of palaeoseismic trenches, a new workflow is presented that integrates infrared hyperspectral and photogrammetric data. This method was applied on two palaeoseismic trenches excavated across a post‐glacial fault scarp in northern Finnish Lapland.
Moritz Kirsch, Sandra Lorenz, Robert Zimmermann, Louis Andreani, Laura Tusa, Solveig Pospiech, Robert Jackisch, Mahdi Khodadadzadeh, Pedram Ghamisi, Gabriel Unger, Philip Hödl, Richard Gloaguen, Maarit Middleton, Raimo Sutinen, Antti Ojala, Jussi Mattila, Nicklas Nordbäck, Jukka‐Pekka Palmu, Mia Tiljander, Timo Ruskeeniemi   +19 more
wiley   +1 more source

Rapid evaluation of radial basis functions [PDF]

, 2005
Over the past decade, the radial basis function method has been shown to produce high quality solutions to the multivariate scattered data interpolation problem.
Baxter, Brad J.C., Roussos, George, Brad J.C. Baxter, George Roussos   +3 more
core   +1 more source

Use of Long Radial Sheaths for Radial Artery Spasm in Neurointerventions

, 2021
One of the challenges of the radial approach is radial artery spasm. Because of the smaller caliber, the guide catheters can cause significant spasm that can complicate the procedure or even preclude it.
Evan Luther, Eric C. Peterson, Luther, Evan, Pascal M. Jabbour, Jabbour, Pascal M., Peterson, Eric C.   +5 more
core   +1 more source

Farm‐Scale Recharge Pits for Improving Local Groundwater Availability: Insights From a Hardrock Watershed in Rajasthan, India

World Water Policy, Volume 12, Issue 3, August 2026.
ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni, Basant Maheshwari, Yogita Dashora, Peter Dillon, Pradeep Kumar Singh   +4 more
wiley   +1 more source

Radial-velocity measurements of subdwarf B stars [PDF]

, 2011
Subdwarf B (sdB) stars are hot, subluminous stars which are thought to be core-helium burning with thin hydrogen envelopes. The mechanism by which these stars lose their envelopes has been controversial, but it has been argued that binary star ...
Copperwheat, CM, Maxted, P. F. L., Morales-Rueda, L., Morales-Rueda, L, Heber, U, L. Morales-Rueda, U. Heber, Copperwheat, C. M., Heber, U., C. M. Copperwheat, T. R. Marsh, Marsh, TR, Maxted, PFL, Marsh, T. R., P. F. L. Maxted   +14 more
core   +1 more source

Mixture models unveil the origin of the enigmatic Satyrinae butterfly genera Calisto and Llorenteana (Lepidoptera, Nymphalidae, Satyrinae) Los modelos de mezcla revelan el origen de los enigmáticos géneros de mariposas Satyrinae Calisto y Llorenteana (Lepidoptera, Nymphalidae, Satyrinae)

Systematic Entomology, Volume 51, Issue 2, April‐June 2026.
We provide the first reliable hypothesis on the phylogenetic position of Calisto and Llorenteana within the tribe Satyrini, based on genomic data representing all subtribes. We apply for the first time nucleotide mixture models, which overcame the inconsistencies resulting from the use of partitioned models in this and previous studies, obtaining a ...
Rayner Núñez, Anja Bodenheim, Yosiel Álvarez, Niklas Wahlberg, Marianne Espeland   +4 more
wiley   +1 more source