Search

Your search keyword '"Krämer, Erich"' showing total 16 results
Start Over Author "Krämer, Erich"
16 results on '"Krämer, Erich"'

1. Qualification of the MMX Rover Locomotion Subsystem for the Martian Moon Phobos

Author

Barthelmes, Stefan, primary, Bayer, Ralph, additional, Bertleff, Wieland, additional, Bihler, Markus, additional, Buse, Fabian, additional, Chalon, Maxime, additional, Geyer, Günther, additional, Hacker, Franz, additional, Hofmann, Cynthia, additional, Holderried, Roman, additional, Kolb, Alexander, additional, Krämer, Erich, additional, Langofer, Viktor, additional, Lichtenheldt, Roy, additional, Moser, Sascha, additional, Prince, André Fonseca, additional, Sasaki, Kaname, additional, Sedlmayr, Hans-Jürgen, additional, Skibbe, Juliane, additional, and Vodermayer, Bernhard, additional

Published
2023
Full Text
View/download PDF

2. Qualification of the MMX Rover Locomotion Subsystem for the Martian Moon Phobos

Author

Barthelmes, Stefan, Bayer, Ralph, Bertleff, Wieland, Bihler, Markus, Buse, Fabian, Chalon, Maxime, Geyer, Günther, Hacker, Franz, Hofmann, Cynthia, Holderried, Roman, Kolb, Alexander, Krämer, Erich, Langofer, Viktor, Lichtenheldt, Roy, Moser, Sascha, Fonseca Prince, Andre, Sasaki, Kaname, Sedlmayr, Hans-Jürgen, Skibbe, Juliane, and Vodermayer, Bernhard

Subjects
Chassis, Rover, Robotics, Qualification, Space Exploration, Mechatronics, Locomotion
Published
2023

3. August Koehler (1844-1919)

Author

Krämer, Erich

Subjects
920 Biografien, Genealogie, Insignien
Abstract

Im Jahr 1751 baute Joseph Stöckle am Mühlbach zwischen Lautenbach und Oberkirch eine Papiermühle mit einem Wasserrad, das neben dem Stampfwerk für die Hadern auch noch eine Öltrotte antrieb. Viermal wechselte der kleine Betrieb in den folgenden Jahrzehnten den Besitzer, keinem war wirtschaftlicher Erfolg beschieden. Der fünfte Papiermacher, der die Mühle 1802 erworben hatte, geriet bereits 1807 in Konkurs, ersteigert wurde der Betrieb nun von dem Ettlinger Kaufmann Otto Koehler. Dessen Sohn Johann Ignaz hatte das Papiermacherhandwerk in Ettlingen erlernt, bereits 1809, mit 20 Jahren, übernahm er von seinem Vater die Mühle, im gleichen Jahr heiratete er die Oberkircher Bäckerstochter Maria Anna Geldreich. Das kleine Werk - 1813 wird von zwei Gesellen und einem Lehrjungen berichtet - reichte nicht aus, die Familie zu ernähren. Von Anfang an wurde Landwirtschaft betrieben, vor allem Weinbau, der bereits für die Ettlinger Vorfahren nachgewiesen ist.

Published
2022
Full Text
View/download PDF

9. DLRs dynamic actuator modules for robotic space applications

Author

Wedler, Armin, Chalon, Maxime, Landzettel, Klaus, Görner, Martin, Krämer, Erich, Gruber, Robin, Beyer, Alexander, Sedlmayr, Hans-Jürgen, Willberg, Bertram, Bertleff, Wieland, Reill, Josef, Schedl, Manfred, Albu-Schäffer, Alin, and Hirzinger, Gerd

Subjects
AEROSPACE ENGINEERING, ACTUATORS, DEGREES OF FREEDOM, ROBOT ARMS, FEEDBACK CONTROL, ROBOTICS, CONTROLLERS, END EFFECTORS, TECHNOLOGY UTILIZATION, TORQUE
Published
2012

12. On the Structure of Phenylalanine tRNA from Yeast.

Author

Sprinzl, Mathias, Krämer, Erich, and Stehlik, Dietmar

Subjects
*TRANSFER RNA, *PHENYLALANINE, *MOLECULAR structure, *YEAST, *TRANSFERASES, *ALKYLATION, *SPIN labels
Abstract

2-Thiocytidine incorporated into tRNAPhe from yeast by tRNA nucleotidyl transferase can be alkylated by iodoacetamide and its derivatives. Using this method a spin label was introduced specifically into tRNAPhe and the product, tRNAPhe-C-(s.l.)s²C-A, can still be aminoacylated by phenylalanyl-tRNA synthetase. Electron paramagnetic resonance spectra obtained between 10° and 70°C for tRNAPhe-C-(s.l.)s²C-A and the pentanucleotide C-A-C-(s.1.)s²C-A (a model compound) were evaluated for the correlation time, τc, of the reorientation of the spin label in its environment and for the motional anisotropy parameter, ε. Spin-labeled pentanucleotide is characterized by a spin label motion with an activation energy, EA, of 1-67 × 10-3 J × mol-1 × K-1 (7.0 kcal × mol-1 × °C-1) ) and a strongly anisotropic motion with a long axis of the rotational ellipsoid along the N-O bond of the radical. This motion is temperature independent. In comparison spin label bound to the tRNA molecule is more immobilised and its motion is more isotropic. In addition, the slope of log τc(T) and the nature of the motion changes at a critical temperature Tcr which, in the absence of magnesium, varies with ionic strength. In the presence of magnesium Tcr is 47.5 °C, whereas the midpoint temperature of the optical melting curve, Tm, is 75 °C. The melting transition monitored by the spin label is a cooperative process associated with the melting of a higher-ordered structure of the tRNAPhe molecule. [ABSTRACT FROM AUTHOR]

Published
1974
Full Text
View/download PDF

13. CAESAR: Space robotics technology for assembly, maintenance, and repair

Author

Beyer, Alexander, Grunwald, Gerhard, Heumos, Martin, Schedl, Manfred, Bayer, Ralph, Bertleff, Wieland, Brunner, Bernhard, Burger, Robert, Butterfaß, Jörg, Gruber, Robin, Gumpert, Thomas, Hacker, Franz, Krämer, Erich, Maier, Maximilian, Moser, Sascha, Reill, Josef, Roa Garzon, Máximo Alejandro, Sedlmayr, Hans-Jürgen, Seitz, Nikolaus, Stelzer, Martin, Stemmer, Andreas, Tubio Manteiga, Gabriel, Wimmer, Tilman, Grebenstein, Markus, Ott, Christian, and Albu-Schäffer, Alin Olimpiu

Subjects
Vibration Damping, Maintenance, Space Robotics, Debris Removal, Assembly, Impedance Control, Institut für Robotik und Mechatronik (ab 2013)
Abstract

The Compliant Assistance and Exploration SpAce Robot (CAESAR) is DLR's consistent continuation in the development of force/torque controlled robot systems. The basis is DLR’s world-famous light-weight robot technology (LWR III) which was successfully transferred to KUKA, one of the world’s leading suppliers of robotics. CAESAR is the space qualified equivalent to the current service robot systems for manufacturing and human-robot cooperation. It is designed for a variety of on-orbit services e.g. assembly, maintenance, repair, and debris removal in LEO/GEO. The dexterity and diversity of CAESAR will push the performance of space robotics to the next level in a comparable way as the current intelligent and sensor based service robots changed robotics on earth.

Catalog

Books, media, physical & digital resources
See catalog results