Results 11 to 20 of about 17,399 (237)

Theory of System Identification and Adaptive Control for Stochastic Systems *

IFAC Proceedings Volumes, 1988
Abstract This paper presents a series of theoretical results on parameter identification and adaptive control for discrete-time stochastic feedback control systems. Without a use of persistent excitation condition the unknown coefficients of the system are consistently estimated by use of the extended least squares (ELS) and the stochastic gradient ...
openaire   +1 more source

Identification of non-linear stochastic spatiotemporal dynamical systems

, 2013
A systematic identification method for non-linear stochastic spatiotemproal (SST) systems described by non-linear stochastic partial differential equations (SPDEs) is investigated in this study based on pointwise observation data. A theoretical framework
Ning, H, Cheng, L, Jing, X
core   +1 more source

Finite-dimensionality of information states in optimal control of stochastic systems: a Lie algebraic approach [PDF]

, 1998
summary:In this paper we introduce the sufficient statistic algebra which is responsible for propagating the sufficient statistic, or information state, in the optimal control of stochastic systems.
Charalambous, Charalambos D.
core   +1 more source

Stochastic Theory of Continuous-Time State-Space Identification

, 1997
Presents theory, algorithms and validation results for system identification of continuous-time state-space models from finite input-output sample sequences. The algorithms developed are methods of subspace model identification and stochastic realization
Verhaegen, Michel, Chou, C. T., Johansson, Rolf,, Lund University.   +3 more
core   +1 more source

Modeling and characteristic analysis of unsteady broadband excitation spectrum of thruster based on OU−Gaussian process

Zhongguo Jianchuan Yanjiu
ObjectivesTo solve the problem of obtaining propeller excitation information in the prediction and control of ship acoustic vibration, a generalized characterization model of the unsteady broadband excitation of a propeller induced by turbulence based on
Ye WEI, Zhenguo ZHANG
doaj   +1 more source

Gauge-Invariant Quantum Thermodynamics: Consequences for the First Law

Entropy
The universality of classical thermodynamics rests on the central limit theorem, due to which, measurements of thermal fluctuations are unable to reveal detailed information regarding the microscopic structure of a macroscopic body.
Lucas C. Céleri, Łukasz Rudnicki
doaj   +1 more source

Residual Models and Stochastic Realization in State-Space System Identification

, 1998
This paper presents theory and algorithms for validation in system identification of state-space models from finite input-output sequences in a subspace model identification framework.
Verhaegen, Michel, Chou, C. T., Robertsson, Anders,, Johansson, Rolf, Robertsson, Anders, Johansson, Rolf,, Lund University.   +6 more
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PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Characterizing the Dynamic Response of a Chassis Frame in a Heavy-Duty Dump Vehicle based on an Improved Stochastic System Identification

, 2015
This paper presents an online method for the assessment of the dynamic performance of the chassis frame in a heavy-duty dump truck based on a novel stochastic subspace identification (SSI) method. It introduces the use of an average correlation signal as
Chen, Zhi, Gu, Fengshou, Zhi Chen, Fengshou Gu, Tie Wang, Zhang, Ruiliang, Ruiliang Zhang, Jing, Peng, Wang, Tie   +8 more
core   +1 more source