Results 121 to 130 of about 137,250 (253)

4D Flow Patterns and Relative Pressure Distribution in a Left Ventricle Model by Shake-the-Box and Proper Orthogonal Decomposition Analysis. [PDF]

Cardiovasc Eng Technol, 2023
Wu X, Saaid H, Voorneveld J, Claessens T, Westenberg JJM, de Jong N, Bosch JG, Kenjereš S.   +7 more
europepmc   +1 more source

MODEL REDUCTION METHODS IN OPTION PRICING [PDF]

In this work we introduce the Proper Orthogonal Decomposition (POD)approach to the valuation of contingent claims for one–dimensional price models.First, we present the POD in the context of an abstract Hilbert space and we givean application for the ...
Antonio Falcó, Francisco Chinesta, Mariano González   +2 more
core  

Single-phase mixing through a narrow gap [PDF]

, 2019
Mixing through narrow gaps connecting adjacent flow paths is an important mass and heat transfer process for many thermo-hydraulic applications. Such flows are considered balanced when the inlet flow speeds of adjacent subchannels are matched.
Buchanan, JR, Ceccio, SL, Mychkovsky, AG, Mäkiharju, SA, Yoon, S   +4 more
core   +1 more source

An Efficient Method for Transient Temperature Calculation in Oil Natural Transformers Based on the Time‐Space Proper Orthogonal Decomposition

High Voltage, EarlyView.
ABSTRACT A reduced‐order model (ROM) for the temperature field based on time‐space proper orthogonal decomposition (POD) is presented to improve the computational efficiency of transient temperature rise in oil‐immersed power transformers with a complete oil natural convection cooling loop.
Haijuan Lan, Wenhu Tang, Zeyi Zhang, Jiahao Gong, Xiongwen Xu, Goran Strbac   +5 more
wiley   +1 more source

Remote Sensed Turbulence Analysis in the Cloud System Associated with Ianos Medicane

Remote Sensing
Cyclonic extreme events have recently undergone an important boost over the Mediterranean Sea, a trend closely linked to ongoing strong climate variations.
Giuseppe Ciardullo, Leonardo Primavera, Fabrizio Ferrucci, Fabio Lepreti, Vincenzo Carbone   +4 more
doaj   +1 more source

PODNO: Proper Orthogonal Decomposition Neural Operators

In this paper, we introduce Proper Orthogonal Decomposition Neural Operators (PODNO) for solving partial differential equations (PDEs) dominated by high-frequency components. Building on the structure of Fourier Neural Operators (FNO), PODNO replaces the Fourier transform with (inverse) orthonormal transforms derived from the Proper Orthogonal ...
Cheng, Zilan, Wang, Zhongjian, Wang, Li-Lian, Azaiez, Mejdi   +3 more
openaire   +2 more sources

An Improved Fast Computational Method for Vibration Characteristic Analysis of Dry‐Type Iron Core Reactor

High Voltage, EarlyView.
ABSTRACT Structural mechanics field simulation plays a critical role in the vibration characteristic analysis of electrical equipment. Existing structural field analysis of equipment based on numerical simulation faces challenges such as convergence difficulties and prolonged computational time, failing to meet the demand for real‐time prediction of ...
Wanqing Wang, Caibo Liao, Bang Liu, Kai Li, Wenyu Liu, Zhaoguo Li, Xianfa Tian   +6 more
wiley   +1 more source

Data-Driven Modal Decomposition Methods as Feature Detection Techniques for Flow Fields in Hydraulic Machinery: A Mini Review

Journal of Marine Science and Engineering
Cavitation is a quasi-periodic process, and its non-stationarity leads to increasingly complex flow field structures. On the other hand, characterizing the flow field with greater precision has become increasingly feasible.
Bin Xu, Liwen Zhang, Weibin Zhang, Yilin Deng, Teck Neng Wong   +4 more
doaj   +1 more source

Preconditioned dynamic mode decomposition and mode selection algorithms for large datasets using incremental proper orthogonal decomposition

AIP Advances, 2017
In this letter, we propose a simple and efficient framework of dynamic mode decomposition (DMD) and mode selection for large datasets. The proposed framework explicitly introduces a preconditioning step using an incremental proper orthogonal ...
Yuya Ohmichi
doaj   +1 more source

Optimization of air supply parameters for stratum ventilation based on proper orthogonal decomposition. [PDF]

Sustain Cities Soc, 2021
Liu Y, Pan W, Long Z.
europepmc   +1 more source