Results 41 to 50 of about 260,527 (285)

Linear Quadratic Stochastic Optimal Control Problems with Operator Coefficients: Open-Loop Solutions

, 2019
An optimal control problem is considered for linear stochastic differential equations with quadratic cost functional. The coefficients of the state equation and the weights in the cost functional are bounded operators on the spaces of square integrable ...
Wei, Qingmeng, Yong, Jiongmin, Yu, Zhiyong   +2 more
core   +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

Formation of optimal control of nonlinear dynamic object based on Takagi-Sugeno model [PDF]

Компьютерные исследования и моделирование, 2015
The algorithm of fuzzy control system essentially nonlinear dynamic object is considered in this article. For solving nonlinear optimal control problem is proposed to use the method of linear quadratic regulation (LQR) with fuzzy Takagi-Sugeno model. The
Sergey Nikolayevich Chukanov, Elena Leonidovna Pershina   +1 more
doaj   +1 more source

Optimal control of partially observable linear quadratic systems with asymmetric observation errors [PDF]

, 2001
This paper deals with the optimal quadratic control problem for non-Gaussian discrete-time stochastic systems. Our main result gives explicit solutions for the optimal quadratic control problem for partially observable dynamic linear systems with ...
Romera, Rosario
core   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Backward Stochastic Linear Quadratic Optimal Control with Expectational Equality Constraint

Mathematics
This paper investigates a backward stochastic linear quadratic control problem with an expected-type equality constraint on the initial state. By using the Lagrange multiplier method, the problem with a uniformly convex cost functional is first ...
Yanrong Lu, Jize Li, Yonghui Zhou
doaj   +1 more source

Optimal tracking control in photovoltaic using linear quadratic tracking

Journal of Aceh Physics Society, 2022
Abstrak. Penelitian ini membahas tentang masalah penjejak pasif photovoltaic terhadap posisi matahari secara optimal. Penjejak pasif digunakan ketika penjejak aktif tidak berfungsi.
Mohd Iqbal Muttaqin, Said Munzir, Marwan Ramli, Muhammad Ikhwan   +3 more
doaj   +1 more source

The Regular Indefinite Linear Quadratic Optimal Control Problem: Stabilizable Case [PDF]

SIAM Journal on Control and Optimization, 2018
This paper addresses an open problem in the area of linear quadratic optimal control. We consider the regular, infinite-horizon, stability-modulo-a-subspace, indefinite linear quadratic problem under the assumption that the dynamics are stabilizable.
Vukosavljev, Marijan, Schoellig, Angela P., Broucke, Mireille E.   +2 more
openaire   +3 more sources

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

A New Method for Determining the Degree of Controllability of State Variables for the LQR Problem Using the Duality Theorem

Applied Sciences, 2020
The control performance of a dynamic system can be checked by the degree of controllability. In this work, we present a new method for determining the degree of observability of state variables for the linear quadratic optimal estimation (LQE) problem ...
Lifei Zhang, Konstantin Avenirovich Neusypin, Maria Sergeevna Selezneva   +2 more
doaj   +1 more source