Results 31 to 40 of about 23,064,312 (378)

The influence of anthropometric indicators on the availability of vitamin D in residents of Southern Ukraine

Journal of Education, Health and Sport, 2023
The social role of the problem of obesity is determined by the threat of disability and a decrease in overall life expectancy due to the frequent development of serious concomitant diseases.
Anton Shanyhin, Volodymyr Babienko, Anastasiya Rozhnova, Yevhen Strakhov   +3 more
doaj   +1 more source

Optimal control of a large dam [PDF]

, 2006
A large dam model is an object of study of this paper. The parameters $L^{lower}$ and $L^{upper}$ are its lower and upper levels, $L=L^{upper}-L^{lower}$ is large, and if a current level of water is between these bounds, then the dam is assumed to be in ...
Abdel-Hameed, Abdel-Hameed, Abramov, Bae, Feller, Lam, Lee, Postnikov, Ross, Subhankulov, Takács, Vyacheslav M. Abramov   +11 more
core   +7 more sources

An Efficient Quantum Multi-Collision Search Algorithm

IEEE Access, 2020
In this article, we propose an efficient quantum k-collision search algorithm with low quantum memory O(n). The previous quantum k-collision algorithms can not be converted into a low quantum memory k-collision algorithm directly, because the time ...
Jian Zou, Yongyang Liu, Le Dong
doaj   +1 more source

Some bounds for the Z-eigenpair of nonnegative tensors

Journal of Inequalities and Applications, 2019
Tensor eigenvalue problem is one of important research topics in tensor theory. In this manuscript, we consider the properties of Z-eigenpair of irreducible nonnegative tensors. By estimating the ratio of the smallest and largest components of a positive
Xiaoyu Ma, Yisheng Song
doaj   +1 more source

Prox-STA-LSTM: A Sparse Representation for the Attention-Based LSTM Networks for Industrial Soft Sensor Development

IEEE Access
For deep learning based soft sensors, the spatiotemporal attention (STA)-LSTM is a newly emerged technique which provides efficient predictions for quality variables of industrial processes.
Yurun Wang, Yi Huang, Dongsheng Chen, Longyan Wang, Lingjian Ye, Feifan Shen   +5 more
doaj   +1 more source

Radial Symmetry and Monotonicity of Solutions to a System Involving Fractional p-Laplacian in a Ball

Advances in Mathematical Physics, 2018
In this paper, we study a nonlinear system involving the fractional p-Laplacian in a unit ball and establish the radial symmetry and monotonicity of its positive solutions. By using the direct method of moving planes, we prove the following result.
Linfen Cao, Xiaoshan Wang, Zhaohui Dai
doaj   +1 more source

A Mizuno-Todd-Ye predictor-corrector infeasible-interior-point method for symmetric optimization with the arc-search strategy

Journal of Inequalities and Applications, 2017
In this paper, we propose a Mizuno-Todd-Ye predictor-corrector infeasible-interior-point method for symmetric optimization using the arc-search strategy.
Ximei Yang, Yinkui Zhang
doaj   +1 more source

Polynomial mechanics and optimal control

, 2015
We describe a new algorithm for trajectory optimization of mechanical systems. Our method combines pseudo-spectral methods for function approximation with variational discretization schemes that exactly preserve conserved mechanical quantities such as ...
Srinivasan, Akshay, Venkadesan, Madhusudhan   +1 more
core   +1 more source

Time Optimal Control in Spin Systems [PDF]

, 2000
In this paper, we study the design of pulse sequences for NMR spectroscopy as a problem of time optimal control of the unitary propagator. Radio frequency pulses are used in coherent spectroscopy to implement a unitary transfer of state.
A. G. Palmer III, B. Kostant, D. G. Cory, D. P. Weitekamp, D. P. Weitekamp, G. W. Haynes, J. A. Wolf, J. Cavanagh, J. Schleucher, L. E. Kay, M. Sattler, N. A. Gershenfeld, Navin Khaneja, O. W. Sørensen, P. Caravatti, R. R. Ernst, R. S. Judson, Roger Brockett, S. Helgason, S. J. Glaser, S. J. Glaser, S. Kobayashi, Steffen J. Glaser, T. Untidt, T. Untidt, V. Jurdjevic, W. S. Warren   +26 more
core   +2 more sources

Optimal Control Systems

, 2018
INTRODUCTION Classical and Modern Control Optimization Optimal Control Historical Tour About This Book Chapter Overview Problems CALCULUS OF VARIATIONS AND OPTIMAL CONTROL Basic Concepts Optimum of a Function and a Functional The Basic Variational ...
D. Naidu, S. Naidu, R. Dorf
semanticscholar   +1 more source