Results 51 to 60 of about 739,365 (344)

Study of convective motions and analysis of the impact of physical parametrization on the WRF-ARW forecast model

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
Optimizing the physical parametrizations of the Weather Research and Forecasting (WRF) model is one of the most challenging and complex tasks. In fact, it is not a simple operation to optimize the performance of a meteorological model capable of ...
Giuseppe Castorina, Maria Teresa Caccamo, Salvatore Magazù   +2 more
doaj   +1 more source

Interpolated reference model based fault tolerant sliding mode control for an octorotor

IET Control Theory & Applications, 2022
In this paper, a quasi‐linear parameter varying sliding mode control allocation law is proposed for the fault tolerant control of an octorotor. In the event of rotor faults/failures, an allocation law redistributes the control effort among the remaining ...
Cleo Vile, Halim Alwi, Christopher Edwards   +2 more
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Robust fault tolerant control allocation for a modern over‐actuated commercial aircraft

IET Control Theory & Applications, 2021
This paper presents a novel form of control allocation, designed within a sliding mode framework, for the fault tolerant control of over‐actuated systems.
Cleo Vile, Halim Alwi, Christopher Edwards   +2 more
doaj   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

In memory of Vladimir Ivanovich Astafyev (30.11.1948–08.02.2024)

Вестник Самарского университета: Естественнонаучная серия
The article is dedicated to the memory of Doctor of Physical and Mathematical Sciences, Professor Vladimir Ivanovich Astafiev, whose professional activity for more than 35 years has been associated with Samara University.
Larisa V. Stepanova, Michail N. Osipov, Marya E. Fedina, Natalia V. Voropaeva, Alexei N. Krutov, Vladimir V. Bondarenko   +5 more
doaj   +1 more source

Cognitive Description of the Vertical Dimension in Foundation of Space Image Schema, based on Cognitive Semantics [PDF]

̒Ilm-i Zabān
According to the embodied mathematics hypothesis, based on the cognitive linguistics’ concepts, the origin of mathematics is human embodiment, and therefore mathematical Platonism and similar descriptions, which assume the existence of mathematics ...
Naser Hafezi Motlagh, Mohammadreza Pahlavannezhad   +1 more
doaj   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Continuous Production of IF-WS2 Nanoparticles by a Rotary Process

Inorganics, 2014
This manuscript demonstrates the design, modification and initial investigation of a rotary furnace for the manufacturing of inorganic fullerene WS2 nanoparticles.
Fang Xu, Nannan Wang, Hong Chang, Yongde Xia, Yanqiu Zhu   +4 more
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source