Results 1 to 10 of about 28,889,117 (325)

Asymptotic control theory for a system of linear oscillators

, 2016
We present an asymptotic control theory for a system of an arbitrary number of linear oscillators under a common bounded control. We suggest a design method of a feedback control for this system.
Fedorov, Aleksey, Ovseevich, Alexander
core   +3 more sources

Effects of Total Calcium and Iron(II) Concentrations on Heterogeneous Nucleation and Crystal Growth of Struvite

Crystals
This study investigated the effects of calcium (Ca2+) and iron (II) Fe2+ concentrations (0–500 mg/L) on the heterogeneous nucleation and crystallization behavior of struvite (MgNH4PO4·6H2O) through controlled batch precipitation experiments.
Pengcheng Wei, Kaiyu Deng, Yang Huang, Jiayu Yang, Fujiang Hui, Dunqiu Wang, Kun Dong   +6 more
doaj   +1 more source

A Linear Control Theory Analysis of Transverse Coherent Bunch Instabilities Feedback Systems (The Control Theory Approach to Hill's Equation) [PDF]

, 1993
There is an on-going effort to build a feedback system for transverse coherent bunch instabilities for ALS [1,2,3]. The beam dynamics issues were already addressed in the conceptual design report [ 4] and more detailed studies have been earned out [5 ...
Bengtsson, Johan, Briggs, Don, Portmann, Gregory   +2 more
core   +1 more source

Geometric reduction in optimal control theory with symmetries

, 2003
A general study of symmetries in optimal control theory is given, starting from the presymplectic description of this kind of system. Then, Noether's theorem, as well as the corresponding reduction procedure (based on the application of the Marsden ...
A. Echeverría-Enríquez, Abraham, Arnold, Blankenstein, Blankensteinand, Bloch, Bracket, Brocket, Carifiena, Cortés, Delgado, Echeverría-enríquez, Goldschmidt, Gotay, Gràcia, Grècia, Isidori, J. Marín-Solano, Jackubczyk, Jakubczyk, Jurdjevic, Jurdjevic, M.C. Muñoz-Lecanda, Marle, Marmo, Marsden, Martinez, Muñoz-Lecanda, Muñoz-Lecanda, N. Román-Roy, Nijmeijer, Respondek, Souriau, Sussmann, Sussmann, Sussmann, Torres, Van der Schaft, Warner   +38 more
core   +1 more source

Supervisory control theory applied to swarm robotics

Swarm Intelligence, 2016
Currently, the control software of swarm robotics systems is created by ad hoc development. This makes it hard to deploy these systems in real-world scenarios. In particular, it is difficult to maintain, analyse, or verify the systems. Formal methods can
Y. K. Lopes, S. Trenkwalder, A. B. Leal, T. Dodd, R. Groß   +4 more
semanticscholar   +1 more source

Nitrogen application and mowings improve chromium phytoextraction efficiency of Leersia hexandra Swartz

Environmental Sciences Europe
Phytoextraction is a promising option for Cr-contaminated soil, but the long remediation period remains a primary hindrance to its large-scale application.
Mengting Lin, Xusheng Jiang, Shiqi Chen, Chao Xiao, Jie Liu   +4 more
doaj   +1 more source

Adsorption of Arsenic by Magnetically Modified Biochar from Mulberry Tree Stems

Toxics
In this study, mulberry tree stems were used as raw material to prepare magnetic modified biochar, Fe-BC-500, using the co-precipitation method. The structure of Fe-BC-500 was systematically characterized and tested for arsenic (As) adsorption in batch ...
Sheng Hu, Jiayu Yang, Jingnan Zhang, Jing Pan, Liling Yan, Kun Dong, Dunqiu Wang, Ying Song, Meina Liang   +8 more
doaj   +1 more source

Quantum feedback control and classical control theory [PDF]

, 2000
We introduce and discuss the problem of quantum feedback control in the context of established formulations of classical control theory, examining conceptual analogies and essential differences. We describe the application of state-observer-based control
Doherty, Andrew C., Habib, Salman, Jacobs, Kurt, Mabuchi, Hideo, Tan, Sze M.   +4 more
core   +2 more sources

Proline drives cross-linking between extensins and pectin in the cell wall to combat hexavalent chromium stress in rice plants

Chemical and Biological Technologies in Agriculture
The cell wall (CW) serves as a protective barrier against toxic metals, with extensins (EXTs), proline (Pro), and hydroxyproline-rich glycoproteins playing key roles. These components regulate CW synthesis and assembly and can cross-link with pectin (Pec)
Yu-Xi Feng, Ben-Tao Yao, Qing Zhang, Cheng-Zhi Li, Peng Tian, Yan-Hong Li, Kun Dong, Yu-Juan Lin   +7 more
doaj   +1 more source

Optimal Control Theory for Continuous Variable Quantum Gates

, 2007
We apply the methodology of optimal control theory to the problem of implementing quantum gates in continuous variable systems with quadratic Hamiltonians.
Herschel Rabitz, M. Nielsen, R. Feynman, R. Stengel, Raj Chakrabarti, Rebing Wu, S. Braunstein, S. Braunstein, V. Arnold, V. Belavkin, V. Jurdjevic, W. Press   +11 more
core   +1 more source