Results 41 to 50 of about 51,292 (130)

Decay rate estimations for linear quadratic optimal regulators

, 2013
Let $u(t)=-Fx(t)$ be the optimal control of the open-loop system $x'(t)=Ax(t)+Bu(t)$ in a linear quadratic optimization problem. By using different complex variable arguments, we give several lower and upper estimates of the exponential decay rate of the
Anderson, Belishev, Boley, Borrelli, Burns, Chu, Curtain, Daniel Estévez, Datta, Davies, Davies, Demmel, Dmitry V. Yakubovich, Eising, Gahinet, Gohberg, Gohberg, He, Hench, Hinrichsen, Karow, Komaroff, Kwon, Lancaster, Lee, Lee, Liu, Mehrmann, Micu, Mikkola, Mitrofanov, Monden, Mori, Mori, Safonov, Sima, Son, van Loan, Willems, Yasuda, Zhou   +40 more
core   +1 more source

Ga Doping Enables Precision Alloy‐to‐Wire Regulation: Synergistic Enhancement of the Mechanical Properties of CuSn Alloy and the Superconducting Properties of Nb3Sn

Advanced Science, EarlyView.
By adjusting Ga's doping in Cu–Sn alloy, an ultra‐high elongation of 100.8% is achieved in first time. Ga forms a stable solid solution structure and a stronger electron exchange with Cu. This enhances strength‐ductility synergistically by tuning SFE to balance twinning and slip.
Dazhuo Song, Juntao Zou, Jiayue Zhang, Xinhang Liang, Mengyu Shan, Yifan Liu, Jingqi Feng, Tong Dang, Lin Shi, Yuxuan Wang, Yuchen Song, Rong Fei, Shaodong Sun, Zhe Zhang, Lei Zhu, Lixing Sun   +15 more
wiley   +1 more source

Coupled Riccati equations for complex plane constraint [PDF]

A new Linear Quadratic Gaussian design method is presented which provides prescribed imaginary axis pole placement for optimal control and estimation systems.
Sesak, John R., Strong, Kristin M.
core   +1 more source

Nonparametric identification of linearizations and uncertainty using Gaussian process models – application to robust wheel slip control [PDF]

, 2005
Gaussian process prior models offer a nonparametric approach to modelling unknown nonlinear systems from experimental data. These are flexible models which automatically adapt their model complexity to the available data, and which give not only mean ...
Hansen, J., Johansen, T.A., Murray-Smith, R.   +2 more
core  

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

Advanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen, Zixing Xu, Zerun Hao, Yanming Chen, Kai Xie, Haofan Yin, Xueying Wang, Jie Min, Sihan Sun, Baiding Chen, Chengxiu Ling, Mingming Xu, Yizhao Chen, Gang Ruan   +13 more
wiley   +1 more source

Eigenspace techniques for active flutter suppression [PDF]

The use of eigenspace techniques for the design of an active flutter suppression system for a hypothetical research drone is discussed. One leading edge and two trailing edge aerodynamic control surfaces and four sensors (accelerometers) are available ...
Farm, Jerome A., Garrard, William L., Liebst, Bradley S.   +2 more
core   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Combined simple cautious and robust control for parameter and disturbance bounded distributions [PDF]

, 1994
The qualities and drawbacks of two control methods to cope with process uncertainty are considered: cautious control which only uses statistics, and robust control which only uses the bounds of the process uncertainty.
Löhnberg, P., Römer, G.R.B.E.
core   +1 more source

A Bottom‐Up Design Framework for Multifunctional Lattice Metamaterials

Advanced Science, EarlyView.
This study introduces a generative AI framework for designing multifunctional lattice metamaterials. The method combines 3D Gaussian voxel generation with deep learning, enabling greater design freedom and structural performance. The optimized lattice metamaterials achieve enhanced energy absorption by 40–200% compared to conventional structures and ...
Zongxin Hu, Quanqing Tao, Junhao Ding, Shuo Qu, Haitao Ye, Jun Wei Chua, Tianxiao Niu, Rui Li, Winston Wai Shing Ma, Haoming Mo, Hui Liu, Wei Zhai, Xinwei Li, Xu Song   +13 more
wiley   +1 more source

Some control design experiments with HIFOO

, 2006
A new MATLAB package called HIFOO was recently proposed for H-infinity fixed-order controller design.
Henrion, Didier
core   +2 more sources