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2000


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Channeling of high-energy particles in bent crystals - experiments at the CERN SPS

Baurichter, A., Biino, C., Clement, M., Doble, N., Elsener, K., Fidecaro, G., Freund, A., Gatignon, L., Grafström, P., Gyr, M., Hage-Ali, M., Herr, W., Keppler, P., Kirsebom, K., Klem, J., Major, J., Medenwaldt, R., Mikkelsen, U., Moller, S. P., Siffert, P., Uggerhoj, E., Vilakazi, Z. Z., Weisse, E.

{Nuclear Instruments and Methods in Physics Research B}, 164-165, pages: 27-43, 2000 (article)

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[BibTex]

2000


[BibTex]


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Magnetoelastic effects in ultrathin epitaxial Ni films: An ab-initio study

Komelj, M., Fähnle, M.

{Journal of Magnetism and Magnetic Materials}, 222, pages: L 245-L 250, 2000 (article)

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[BibTex]

[BibTex]


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Evidence for near-grain boundary lattice rotations in an Fe(Si) alloy.

Rabkin, E., Semenov, V., Bischoff, E.

{Zeitschrift f\"ur Metallkunde}, 91, pages: 165-170, 2000 (article)

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[BibTex]

[BibTex]


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Electron focusing in metals and semimetals

Heil, J., Böhm, A., Gröger, A., Primke, M., Wyder, P., Keppler, P., Major, J., Bender, H., Schönherr, E., Wendel, H., Wolf, B., Würz, U., Grill, W., Herrenberger, S., Knauth, S., Lenzner, J.

{Physics Reports}, 323, pages: 387-455, 2000 (article)

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[BibTex]

[BibTex]


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Analysis of the electronic structure of intermetallic compounds and application to structural defects in B2 phases

Börnsen, N., Meyer, B., Bester, G., Fähnle, M.

{Journal of Alloys and Compounds}, 308, pages: 1-14, 2000 (article)

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[BibTex]

[BibTex]


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Melt-spun precipitation-hardened Sm2(Co,Cu,Fe,Zr)17 magnets with abnormal temperature dependence of coercivity

Goll, D., Kleinschroth, I., Sigle, W., Kronmüller, H.

{Applied Physics Letters}, 76, pages: 1054-1056, 2000 (article)

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[BibTex]

[BibTex]


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Hydrogen-induced phase transition of GdZn1-xMgx compounds

Reule, H., Hirscher, M.

{Journal of Alloys and Compounds}, 298, pages: 1-8, 2000 (article)

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[BibTex]

[BibTex]


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The influence of a finite bandwidth on the Verwey transition in magnetite

Brabers, J. H. V. J., Walz, F., Kronmüller, H.

{Journal of Physics: Condensed Matter}, 12, pages: 5437-5452, 2000 (article)

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[BibTex]

[BibTex]


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Dynamics of a bouncing ball in human performance

Sternad, D., Duarte, M., Katsumata, H., Schaal, S.

Physical Review E, 63(011902):1-8, 2000, clmc (article)

Abstract
On the basis of a modified bouncing-ball model, we investigated whether human movements utilize principles of dynamic stability in their performance of a similar movement task. Stability analyses of the model provided predictions about conditions indicative of a dynamically stable period-one regime. In a series of experiments, human subjects bounced a ball rhythmically on a racket and displayed these conditions supporting that they attuned to and exploited the dynamic stability properties of the task.

am

link (url) [BibTex]

link (url) [BibTex]


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Macro to Nano Tele-Manipulation Towards Nanoelectromec hanical Systems

Sitti, M., Hashimoto, H.

Journal of Robotics and Mechatronics, 12(3):209-217, FUJI TECHNOLOGY PRESS LTD., 2000 (article)

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[BibTex]

[BibTex]


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Untersuchung von Magnetisierungsprozessen in dünnen Nd2Fe14B-Schichten

Melsheimer, A.

Universität Stuttgart, Stuttgart, 2000 (phdthesis)

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[BibTex]

[BibTex]


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Influcence of vortex-vortex interaction on critical currents across low-angle grain boundaries in YBa2Cu3O7-δ

Albrecht, J., Leonhardt, S., Kronmüller, H.

{Physical Review B}, 63, 2000 (article)

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[BibTex]

[BibTex]


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Symmetrical Tilt Grain boundaries in body-centred cubic transition metals: An ab-initio local-density-functional study

Ochs, T., Beck, O., Elsässer, C., Meyer, B.

{Philosophical Magazine A}, 80, pages: 351-372, 2000 (article)

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[BibTex]

[BibTex]


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The liquid ferromagnet Co80Pd20 and its critical exponent γ

Bührer, C., Beckmann, M., Fähnle, M., Maier, K.

{Journal of Magnetism and Magnetic Materials}, 212, pages: 211-224, 2000 (article)

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[BibTex]

[BibTex]


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Irreversible magnetization processes in a soft magnetic platelet

Hertel, R., Kronmüller, H.

{Physica B}, 275, pages: 1-4, 2000 (article)

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[BibTex]

[BibTex]


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Measurement of the Zener relaxation in high-purity FeCr single crystals

Hirscher, M., Brossmann, U., Henes, R.

{Materials Transactions, JIM}, 41, pages: 82-86, 2000 (article)

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[BibTex]

[BibTex]


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Ab-initio statistical mechanics for alloy phase diagrams and ordering phenomena including the effect of vacancies

Lechermann, F., Fähnle, M.

{Physical Review B}, 63, 2000 (article)

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[BibTex]


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MeV Positron Beams

Stoll, H.

In Positron Beams and Their Applications, pages: 237-257, World Scientific, Singapore, 2000 (incollection)

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[BibTex]

[BibTex]


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Reactions in TiO2/Ti3Al and TiO2/TiAl bilayers: Application of target-factor analysis in auger electron spectroscopy

van Lier, J., Baretzky, B., Zalar, A., Mittemeijer, E. J.

{Surface and Interface Analysis}, 30, pages: 124-129, 2000 (article)

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[BibTex]

[BibTex]


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Ab-initio treatment of noncollinear spin systems within the atomic-sphere approximation and beyond

Grotheer, O., Ederer, C., Fähnle, M.

{Physical Review B}, 62, pages: 5601-5608, 2000 (article)

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[BibTex]

[BibTex]


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Is d-Al-Cu-Co a random tiling?

Zeger, G., Plachke, D., Carstanjen, H. D., Trebin, H. R.

{Materials Science and Engineering A}, 294, pages: 291-294, 2000 (article)

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[BibTex]

[BibTex]


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Nonlinear magnetoelastic coupling coefficients in Fe from an ab-initio calculation

Komelj, M., Fähnle, M.

{Journal of Magnetism and Magnetic Materials}, 220, pages: L 7-L 12, 2000 (article)

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[BibTex]

[BibTex]


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Current densities in low-angle grain boundaries of YBCO

Albrecht, J., Warthmann, R., Leonhardt, S., Kronmüller, H.

{Physica C}, 341-348, pages: 1459-1460, 2000 (article)

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[BibTex]

[BibTex]


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The hydrogen desorption kinetics of Pd-coated LaNi5-type films

Cuevas, F., Hirscher, M.

{Journal of Alloys and Compounds}, 313, pages: 269-275, 2000 (article)

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[BibTex]

[BibTex]


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The structure of the trihydride GdH3

Ellner, M., Reule, H., Mittemeijer, E. J.

{Journal of Alloys and Compounds}, 309, pages: 127-131, 2000 (article)

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[BibTex]

[BibTex]


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Corrosion resistance of the vacuum arc deposited Ti, TiN and TiO2 coatings on large area glass substrates

Vershinin, N., Filonov, K., Straumal, B., Gust, W., Dimitriou, R., Kovalev, A., Camacho, J.

{Surface and Coatings Technology}, 125, pages: 223-228, 2000 (article)

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[BibTex]

[BibTex]


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Is the insulator-metal transition in perovskites associated with the bulk magnetic phase transition?

Baszynski, J., Walz, F., Tolinski, T.

{Sensors and Actuators}, 81, pages: 37-39, 2000 (article)

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[BibTex]

[BibTex]


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Correlated molecular-field theory of amorphous ferromagnets and the Gibbs free energy

Fähnle, M.

{Journal of Magnetism and Magnetic Materials}, 210, pages: L 1-L 4, 2000 (article)

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[BibTex]

[BibTex]


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Pinning mechanism of vortices at antiphase boundaries in YBa2Cu3O7-δ

Jooss, C., Warthmann, R., Kronmüller, H.

{Physical Review B}, 61, pages: 12433-12446, 2000 (article)

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[BibTex]

[BibTex]


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Critical behaviour of V2H in a defective near-surface skin layer

Trenkler, J., Moss, S. C., Reichert, H., Paniago, R., Gebhardt, U., Carstanjen, H. D., Metzger, T. H., Peisl, J.

In Exploration of Subsurface Phenomena by Particle Scattering, pages: 155-164, International Advanced Studies Institute IASI Press, North East/MD, 2000 (incollection)

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[BibTex]

[BibTex]


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Spectral distribution of activation energies in YBa2Cu3O7-δthin films

Warthmann, R., Albrecht, J., Kronmüller, H., Joos, C.

{Physical Review B}, 62, pages: 15226-15229, 2000 (article)

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[BibTex]

[BibTex]


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Ab-initio calculation of the formation and migration energies for Monovacancies in Mg

Krimmel, H., Fähnle, M.

{Physical Review B}, 62, pages: 5489-5491, 2000 (article)

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[BibTex]

[BibTex]


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Controlled pushing of nanoparticles: modeling and experiments

Sitti, M., Hashimoto, H.

IEEE/ASME transactions on mechatronics, 5(2):199-211, IEEE, 2000 (article)

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[BibTex]

[BibTex]


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Investigation of strain softening of icosahedral AlPdMn single quasicrystals

Brunner, D., Plachke, D., Carstanjen, H. D.

{Physica Status Solidi (A)}, 177, pages: 203-217, 2000 (article)

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[BibTex]

[BibTex]


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Formation and evolution of the transverse anisotropy with nanocrystallization in amorphous Fe73.5CuNb3Si13.5B9 ribbons

Guo, H. Q., Kronmüller, H., Dragon, T., Cheng, Z. H., Shen, B. G.

{Physical Review}, 62, pages: 5760-5764, 2000 (article)

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[BibTex]

[BibTex]


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Deflection of 32.8 TeV/c fully stripped Pb ions by means of a bent Si crystal

Biino, C., Clement, M., Doble, N., Elsener, K., Gatignon, L., Grafström, P., Herr, W., Keppler, P., Major, J., Mikkelsen, U., Taratin, A., Velasco, M.

{Nuclear Instruments and Methods in Physics Research B}, 160, pages: 536-543, 2000 (article)

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[BibTex]

[BibTex]


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Replacing muons by protons: polarized beam NMR

Schüth, J., Eversheim, P.-D., Herzog, P., Maier, K., Majer, G., Meyer, P., Roduner, E.

{Physica B}, 289-290, pages: 672-675, 2000 (article)

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[BibTex]

[BibTex]


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Charge transport mechanisms in single crystalline yttrium iron garnet as resolved by magnetic relaxation

Walz, F., Torres, L., Iñiguez, J., Kronmüller, H.

{Physica Status Solidi (A)}, 180, pages: 507-522, 2000 (article)

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[BibTex]

[BibTex]


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Theory of self-diffusion in alkali metals I. Results for monovacancies in Li, Na, and K

Schott, V., Fähnle, M., Madden, P. A.

{Journal of Physics: Condensed Matter}, 12, pages: 1171-1194, 2000 (article)

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[BibTex]

[BibTex]


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Theory of self-diffusion in alkali metals II. The influence of divacancies in Li

Schott, V., Fähnle, M., Madden, P. A.

{Journal of Physics: Condensed Matter}, 12, pages: 1195-1198, 2000 (article)

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[BibTex]

[BibTex]


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Decay kinetics of nonequilibrium Al-Si solid solutions

Sluchanko, N. E., Glushkov, V. V., Demishev, S. V., Kondrin, M. V., Ischenko, T. V., Gust, W., Brazhkin, V. V., Straumal, B. B., Bruynseraede, Y., Moshchalkov, V. V.

{Physical Review B}, 61, pages: 6019-6027, 2000 (article)

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[BibTex]

[BibTex]


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Vacuum arc deposition of Ti coatings

Straumal, B., Gust, W., Vershinin, N., Dimitriou, R., Rabkin, E.

{Surface and Coatings Technology}, 125, pages: 157-160, 2000 (article)

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[BibTex]

[BibTex]


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Internal friction in Ni-rich B2-NiAl

Brossmann, U., Hirscher, M., Schaible, D., Kronmüller, H.

{Scripta Materialia}, 42, pages: 1193-1197, 2000 (article)

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[BibTex]

[BibTex]


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Spectral distribution of activation energies in YBa2Cu3O7-δthin films

Warthmann, R., Albrecht, J., Kronmüller, H., Joos, C.

{Physical Review B}, 62, pages: 15226-15229, 2000 (article)

mms

[BibTex]

[BibTex]


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Pre-treatment of large area strips with the aid of a high power hall current accelerator

Vershinin, N., Dimitriou, R., Benmalek, M., Straumal, B., Gust, W., Vivas, J., Shulga, J.

{Surface and Coatings Technology}, 125, pages: 35-39, 2000 (article)

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[BibTex]

[BibTex]

1996


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A Kendama learning robot based on bi-directional theory

Miyamoto, H., Schaal, S., Gandolfo, F., Koike, Y., Osu, R., Nakano, E., Wada, Y., Kawato, M.

Neural Networks, 9(8):1281-1302, 1996, clmc (article)

Abstract
A general theory of movement-pattern perception based on bi-directional theory for sensory-motor integration can be used for motion capture and learning by watching in robotics. We demonstrate our methods using the game of Kendama, executed by the SARCOS Dextrous Slave Arm, which has a very similar kinematic structure to the human arm. Three ingredients have to be integrated for the successful execution of this task. The ingredients are (1) to extract via-points from a human movement trajectory using a forward-inverse relaxation model, (2) to treat via-points as a control variable while reconstructing the desired trajectory from all the via-points, and (3) to modify the via-points for successful execution. In order to test the validity of the via-point representation, we utilized a numerical model of the SARCOS arm, and examined the behavior of the system under several conditions.

am

link (url) [BibTex]

1996


link (url) [BibTex]


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From isolation to cooperation: An alternative of a system of experts

Schaal, S., Atkeson, C. G.

In Advances in Neural Information Processing Systems 8, pages: 605-611, (Editors: Touretzky, D. S.;Mozer, M. C.;Hasselmo, M. E.), MIT Press, Cambridge, MA, 1996, clmc (inbook)

Abstract
We introduce a constructive, incremental learning system for regression problems that models data by means of locally linear experts. In contrast to other approaches, the experts are trained independently and do not compete for data during learning. Only when a prediction for a query is required do the experts cooperate by blending their individual predictions. Each expert is trained by minimizing a penalized local cross validation error using second order methods. In this way, an expert is able to adjust the size and shape of the receptive field in which its predictions are valid, and also to adjust its bias on the importance of individual input dimensions. The size and shape adjustment corresponds to finding a local distance metric, while the bias adjustment accomplishes local dimensionality reduction. We derive asymptotic results for our method. In a variety of simulations we demonstrate the properties of the algorithm with respect to interference, learning speed, prediction accuracy, feature detection, and task oriented incremental learning. 

am

link (url) [BibTex]

link (url) [BibTex]