Esa Tanskanen

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We present a Model-Predictive Control (MPC) system for online synthesis of interactive and physically valid character motion. Our system enables a complex (36-DOF) 3D human character model to balance in a given pose, dodge projectiles, and improvise a get up strategy if forced to lose balance, all in a dynamic and unpredictable environment. Such(More)
[1] We study the seasonal variation of substorms, geomagnetic activity and their solar wind drivers in 1993–2008. The number of substorms and substorm mean duration depict an annual variation with maxima in Winter and Summer, respectively, reflecting the annual change of the local ionosphere. In contradiction, substorm mean amplitude, substorm total(More)
The pulsed-field gel electrophoresis (PFGE) pattern of SmaI digests of 29 strains of Lactococcus lactis subsp. lactis and subsp. cremoris were determined. Unrelated strains yielded markedly different patterns of digestion products. Bacteriophage-resistant derivatives of four strains, generated by a method analogous to that used regularly in some cheese(More)
[1] Cluster observations taken during a substorm on September 19, 2001 have revealed the presence of small traveling compression regions (TCRs) in the near tail. These measurements are used to determine directly the speed and direction of TCR propagation and the amplitude of the underlying bulge in the plasma sheet. The time-of-flight speeds derived from(More)
[1] This study presents a detailed description and analysis of a pseudo-breakup, which took place in the field of view (FOV) of the Magnetometers–Ionospheric Radars–All-sky Cameras Large Experiment (MIRACLE) network (IMAGE magnetometers, Scandinavian TwinAuroral Radar Experiment [STARE] radars, and all-sky cameras) on 3November 1997 at 2212 UT. The(More)
Sudden impulses (SI) in the tail lobe magnetic field associated with solar wind pressure enhancements are investigated using measurements from Cluster. The magnetic field components during the SIs change in a manner consistent with the assumption that an antisunward moving lateral pressure enhancement compresses the magnetotail axisymmetrically. We found(More)
The International Monitor for Auroral Geomagnetic Effects network magnetic measurements during the period 1995–2009 are used to characterize the annual variations in the westward electrojet. The results suggest that the annual variations in different local time sectors are quite different due to the different sources. In the MLT sector 2200–0100, the annual(More)
Total eastward and westward electrojet currents (EEJ and WEJ) and their central latitudes derived from the International Monitor for Auroral Geomagnetic Effects (IMAGE) network magnetic measurements are analyzed for the combined MLT (magnetic local time) and seasonal dependence during the period 1995–2009. EEJ shows a strong MLT variation with significant(More)
Membrane potential in a mathemati al model of a ardia myo yte an be formulated in di erent ways. Assuming a spatially homogeneous myo yte that is stri tly hargeonservative and ele troneutral as a whole, two methods will be ompared: (1) the di erential formulation dV/dt = −I/Cm of membrane potential used traditionally; and (2) the apa itor formulation, where(More)