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This paper presents a novel optimal adaptive feedback control concept for nonlinear switched autonomous systems. Our proposed controller implements a closed-loop switching law, which is represented by a parametrized switching plane in the state space. During the plant operation, the plane parameters are incrementally adapted to state measurements in real… (More)

- Ian V. J. Murray, Neil R. A. Parry, Jan Kremers, Milena Stepien, Axel Schild
- Visual neuroscience
- 2004

It is implicit in many cone-specific ERG studies that the amplitude is proportional to the numbers of cones stimulated. The objective of these experiments was to test this idea by comparing ERGs obtained from different areas of the retina with histological data on cone-density distributions. The histology (Curcio et al., 1990) shows that the cumulative… (More)

- Axel Schild, Xu Chu Ding, Magnus Egerstedt, Jan Lunze
- CDC
- 2009

This paper presents a novel, computationally feasible procedure for computing optimal switching surfaces, i.e. optimal feedback controllers for switched autonomous nonlinear systems. The systems under consideration are regulated by appropriately scheduling their operation modes. Given a finite mode sequence, the control task requires to determine switching… (More)

- Axel Schild, Jan Lunze
- HSCC
- 2008

Discretely controlled continuous systems (DCCS) represent an important class of hybrid systems, in which a continuous process is regulated by a discrete controller. The paper introduces a novel modelbased design procedure for periodically operated DCCS with the objective to produce a periodic stationary operation. The method exploits an equivalence to… (More)

- Axel Schild, Jan Lunze
- HSCC
- 2007

- Jörg Krupar, Jan Lunze, Axel Schild, Wolfgang M. Schwarz
- IEICE Transactions
- 2006

- Gunter Hermann, Vincent Pohl, Jean Christophe Tremblay, Beate Paulus, Hans-Christian Hege, Axel Schild
- Journal of Computational Chemistry
- 2016

ORBKIT is a toolbox for postprocessing electronic structure calculations based on a highly modular and portable Python architecture. The program allows computing a multitude of electronic properties of molecular systems on arbitrary spatial grids from the basis set representation of its electronic wavefunction, as well as several grid-independent… (More)

- Mikhail V. Korolkov, Jorn Manz, Axel Schild
- The journal of physical chemistry. A
- 2010

Six isotope effects (i)-(vi) are discovered for the reactions Cl + H(2)(ν) → HCl + H in solid para-H(2) ( 1 ) versus Cl + D(2)(ν) → DCl + D in ortho-D(2) ( 2 ), by means of quantum reaction dynamics simulations, within the frame of our simple model ( J. Phys. Chem. A 2009 , 113 , 7630 . ). Experimentally, the reactions may be initiated for ν = 0 and ν ≥ 1,… (More)

- Mikhail V. Korolkov, Jorn Manz, Axel Schild
- The journal of physical chemistry. A
- 2009

Recent experimental investigations by the group of D. T. Anderson (Kettwich, S. C.; Raston, P. L.; Anderson, D. T. J. Phys. Chem. A 2009, 113, DOI 10.1021/jp811206a) show that the reaction Cl + H(2) --> HCl + H in the para-H(2) crystal can be induced by infrared (IR) + ultraviolet (UV) coirradiations causing vibrational pre-excitation of the molecular… (More)