Results 51 to 60 of about 287,072 (265)

A multi-model approach to Saint-Venant equations: A stability study by LMIs

International Journal of Applied Mathematics and Computer Science, 2012
This paper deals with the stability study of the nonlinear Saint-Venant Partial Differential Equation (PDE). The proposed approach is based on the multi-model concept which takes into account some Linear Time Invariant (LTI) models defined around a set ...
Dos Santos Martins Valérie, Rodrigues Mickael, Diagne Mamadou   +2 more
doaj   +1 more source

From Gauged to Ungauged: Using Catchment Morphology to Guide the Transfer of Physics‐Informed Neural Network Discharge Predictions

Hydrological Processes, Volume 40, Issue 6, June 2026.
This study develops a transferability framework that combines ensemble clustering with hybrid PINN‐GRU models for discharge prediction in ungauged catchments. Using 10 catchment morphometrics, 117 subcatchments were grouped into four clusters, achieving strong within‐cluster transferability.
Mehran Khan, Kirstie Fryirs, Lucy Marshall   +2 more
wiley   +1 more source

Coupling Green-Ampt and Saint-Venant Equations for Estimating of Transmission Losses during Flood Routing in Rivers [PDF]

علوم و مهندسی آبیاری, 2016
Volume of flooding flow volume in ephemeral streams decreases due to evaporation as well as the channel wall and bed penetration. This process is known as transmission losses.
Sabah Mohammadi, Rasoul Ghobadian, Seyed Mahmoud Kashefi Pour   +2 more
doaj   +1 more source

Hybrid Data‐Driven and Physics‐Informed Learning of Cyclic Plasticity For Pipe Steel

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT An efficient and explainable machine learning (ML) approach is presented, replacing conventional material models based on the radial return mapping (RRM) algorithm for the constitutive modeling of cyclic plasticity in 3D. The application of transfer learning, based on an existing model for a separate class of steel, leads to a significant ...
Stefan Hildebrand, Sandra Klinge
wiley   +1 more source

Exponential stability of PI control for Saint-Venant equations with a friction term

Methods and Applications of Analysis, 2019
We consider open channels represented by Saint-Venant equations that are monitored and controlled at the downstream boundary and subject to unmeasured flow disturbances at the upstream boundary.
G. Bastin, J. Coron
semanticscholar   +1 more source

Inventaire des polissoirs préhistoriques de Loir-et-Cher

, 1904
Saint-Venant Julien de. Inventaire des polissoirs préhistoriques de Loir-et-Cher. In: Bulletin de la Société préhistorique de France, tome 1, n°5, 1904. pp.
De Saint-Venant, J.
core   +1 more source

Estimation of the Torsional Rigidity of Orthotropic Solid Cross Section

Engineering Transactions, 2021
In this paper, two inequality relations are proven for the torsional rigidity of orthotropic elastic solid cross sections. By using the derived inequality relations, lower and upper bounds can be obtained for the torsional rigidity.
István ECSEDI, Attila BAKSA
doaj   +1 more source

RS‐FloodXDepth: Enhancing Remote Sensing‐Derived Flood Extent and Estimating Flood Depth Using a Hydrologically Guided Region‐Growing Method and High‐Resolution DEMs

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Remote sensing imagery is widely utilized for mapping flood extents. However, sensor limitations and environmental conditions often reduce mapping capability. Factors such as obscuring clouds, terrain shadows, and dense tree canopies frequently lead to significant information gaps and omission errors, particularly in forests and urban areas ...
D. Tian, H. Liu, L. Wang, S. Cohen, T. Mandal   +4 more
wiley   +1 more source

Saint-Venant torsion of non-homogeneous orthotropic circular cylinder

Archive of applied mechanics (1991), 2019
The object of this paper is the Saint-Venant torsion of a radially non-homogeneous, hollow and solid circular cylinder made of orthotropic piezoelectric material.
I. Ecsedi, A. Baksa
semanticscholar   +1 more source

A Sensitivity Analysis Approach to Identifying Drivers of Streamflow Hysteresis

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 3, June 2026.
ABSTRACT This study reveals the critical interplay between streamflow hysteresis and local hydrogeomorphic conditions. Hysteresis is known to be influenced by characteristics such as bed slope, roughness, and wave intensity, but there has been no comprehensive study of the conditions facilitating hysteresis.
E. House, E. Meselhe, M. Muste, K. Kim, I. Demir   +4 more
wiley   +1 more source