TY  - JOUR
A1  - Dachwald, Bernd
T1  - Optimization of very-low-thrust trajectories using evolutionary neurocontrol
JF  - Acta Astronautica
N2  - Searching optimal interplanetary trajectories for low-thrust spacecraft is usually a difficult and time-consuming task that involves much experience and expert knowledge in astrodynamics and optimal control theory. This is because the convergence behavior of traditional local optimizers, which are based on numerical optimal control methods, depends on an adequate initial guess, which is often hard to find, especially for very-low-thrust trajectories that necessitate many revolutions around the sun. The obtained solutions are typically close to the initial guess that is rarely close to the (unknown) global optimum. Within this paper, trajectory optimization problems are attacked from the perspective of artificial intelligence and machine learning. Inspired by natural archetypes, a smart global method for low-thrust trajectory optimization is proposed that fuses artificial neural networks and evolutionary algorithms into so-called evolutionary neurocontrollers. This novel method runs without an initial guess and does not require the attendance of an expert in astrodynamics and optimal control theory. This paper details how evolutionary neurocontrol works and how it could be implemented. The performance of the method is assessed for three different interplanetary missions with a thrust to mass ratio <0.15mN/kg (solar sail and nuclear electric).
Y1  - 2005
SN  - 1879-2030
VL  - 57
IS  - 2-8
SP  - 175
EP  - 185
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Peloni, Alessandro
A1  - Ceriotti, Matteo
A1  - Dachwald, Bernd
T1  - Solar-sail trajectory design for a multiple near-earth-asteroid rendezvous mission
JF  - Journal of Guidance, Control, and Dynamics
N2  - The scientific interest for near-Earth asteroids as well as the interest in potentially hazardous asteroids from the perspective of planetary defense led the space community to focus on near-Earth asteroid mission studies. A multiple near-Earth asteroid rendezvous mission with close-up observations of several objects can help to improve the characterization of these asteroids. This work explores the design of a solar-sail spacecraft for such a mission, focusing on the search of possible sequences of encounters and the trajectory optimization. This is done in two sequential steps: a sequence search by means of a simplified trajectory model and a set of heuristic rules based on astrodynamics, and a subsequent optimization phase. A shape-based approach for solar sailing has been developed and is used for the first phase. The effectiveness of the proposed approach is demonstrated through a fully optimized multiple near-Earth asteroid rendezvous mission. The results show that it is possible to visit five near-Earth asteroids within 10 years with near-term solar-sail technology.
Y1  - 2016
U6  - http://dx.doi.org/10.2514/1.G000470
SN  - 0731-5090
VL  - 39
IS  - 12
SP  - 2712
EP  - 2724
PB  - AIAA
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Baader, Fabian
A1  - Boxberg, Marc S.
A1  - Chen, Qian
A1  - Förstner, Roger
A1  - Kowalski, Julia
A1  - Dachwald, Bernd
T1  - Field-test performance of an ice-melting probe in a terrestrial analogue environment
JF  - Icarus
N2  - Melting probes are a proven tool for the exploration of thick ice layers and clean sampling of subglacial water on Earth. Their compact size and ease of operation also make them a key technology for the future exploration of icy moons in our Solar System, most prominently Europa and Enceladus. For both mission planning and hardware engineering, metrics such as efficiency and expected performance in terms of achievable speed, power requirements, and necessary heating power have to be known.

Theoretical studies aim at describing thermal losses on the one hand, while laboratory experiments and field tests allow an empirical investigation of the true performance on the other hand. To investigate the practical value of a performance model for the operational performance in extraterrestrial environments, we first contrast measured data from terrestrial field tests on temperate and polythermal glaciers with results from basic heat loss models and a melt trajectory model. For this purpose, we propose conventions for the determination of two different efficiencies that can be applied to both measured data and models. One definition of efficiency is related to the melting head only, while the other definition considers the melting probe as a whole. We also present methods to combine several sources of heat loss for probes with a circular cross-section, and to translate the geometry of probes with a non-circular cross-section to analyse them in the same way. The models were selected in a way that minimizes the need to make assumptions about unknown parameters of the probe or the ice environment.

The results indicate that currently used models do not yet reliably reproduce the performance of a probe under realistic conditions. Melting velocities and efficiencies are constantly overestimated by 15 to 50 % in the models, but qualitatively agree with the field test data. Hence, losses are observed, that are not yet covered and quantified by the available loss models. We find that the deviation increases with decreasing ice temperature. We suspect that this mismatch is mainly due to the too restrictive idealization of the probe model and the fact that the probe was not operated in an efficiency-optimized manner during the field tests. With respect to space mission engineering, we find that performance and efficiency models must be used with caution in unknown ice environments, as various ice parameters have a significant effect on the melting process. Some of these are difficult to estimate from afar.
Y1  - 2023
U6  - http://dx.doi.org/10.1016/j.icarus.2023.115852
N1  - Forschungsdaten hierzu: "Performance data of an ice-melting probe from field tests in two different ice environments" (https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/10890)
IS  - 409
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Trzewik, Jürgen
A1  - Ates, M.
T1  - A novel method to quantify mechanical tension in cell monolayers. Trzewik, Jürgen; Ates, M., Artmann, Gerhard Michael
JF  - Biomedizinische Technik. 47 (2002), H. Suppl. 1. Pt. 1
Y1  - 2002
SN  - 0013-5585
N1  - Druckausgabe unter 63 Z 47 vorhanden
SP  - 379
EP  - 381
ER  - 
TY  - JOUR
A1  - Maggakis-Kelemen, Christina
A1  - Biselli, Manfred
A1  - Artmann, Gerhard
T1  - Determination of the elastic shear modulus of cultured human red blood cells
JF  - Biomedizinische Technik. 47 (2002), H. Suppl. 1 Pt. 1
Y1  - 2002
SN  - 0013-5585
N1  - Druckausgabe unter 63 Z 471 vorhanden
SP  - 106
EP  - 109
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zhou-Stache, J.
A1  - Buettner, R.
A1  - Mittermayer, C. [u.a.]
T1  - Inhibition of TNF-alpha induced cell death in HUVEC and Jurkat cells by protocatechuic acid. Zhou-Stache, J.; Buettner, R.; Artmann, Gerhard Michael; Mittermayer, C.; Bosserhoff, A. K.
JF  - Medical and Biological Engineering and Computing. 40 (2002), H. 6
Y1  - 2002
SN  - 0140-0118
SP  - 698
EP  - 703
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Trzewik, Jürgen
A1  - Mallipattu, S. K.
A1  - Delano, F. A. [u.a.]
T1  - Evidence for a second valve system in Lymphatics: Endothelial Microvalves. Trzewik, Jürgen; Mallipattu, S. K.; Artmann, Gerhard Michael; Delano, F. A.; Schmid-Schonbein, G. W
JF  - The FASEB Journal. 15 (2001)
Y1  - 2001
SN  - 1530-6860
SP  - 1711
EP  - 1717
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Bäumler, H.
A1  - Voigt, A.
A1  - Mitlöhner, R. [u.a.]
T1  - Plastic behaviour of polyelectrolyte microcapsules derived from colloid templates. Bäumler, H., Artmann, Gerhard Michael; Voigt, A., Mitlöhner, R., Neu, B., Kiesewetter, H.
JF  - Journal of Microencapsulation. 17 (2000), H. 5
Y1  - 2000
SN  - 1464-5246
SP  - 651
EP  - 655
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Gorbatenkova, E. A.
A1  - Panasenko, O. M.
T1  - Hypochlorous acid and human blood low density lipoproteins modified by hypochlorous acid increase erythrocyte adhesion to endothelial cells. Gorbatenkova, E. A.; Artmann, Gerhard Michael; Panasenko, O. M.
JF  - Membrane and cell biology. 13 (2000), H. 4
Y1  - 2000
SN  - 1023-6597
SP  - 537
EP  - 546
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Kelemen, C.
A1  - Chien, S.
T1  - Temperature transition of human hemoglobin at body temperature: effects of calcium. Kelemen, C.; Chien, S.; Artmann, Gerhard Michael
JF  - Biophysical journal. 80 (2001), H. 6
Y1  - 2001
SN  - 1542-0086
SP  - 2622
EP  - 2630
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Hueck, I. S.
A1  - Hollweg, H. G.
A1  - Schmid-Schönbein, G. W.
T1  - Chlorpromazine modulates the Morphological Macro- and Microstructure of Endothelial Cells. Hueck, I. S.; Hollweg, H. G.; Schmid-Schönbein, G. W.; Artmann, Gerhard Michael
JF  - American Journal of Physiology. Cell Physiology. 278 (2000), H. 5
Y1  - 2000
SN  - 1522-1563
N1  - Zählung: C873- C878
SP  - 873
EP  - 878
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Li, Anlan
A1  - Seipelt, H.
A1  - Müller, C. [u.a.]
T1  - Effects of salicylic acid derivatives on red blood cell membranes. Li, Anlan; Seipelt, H.; Müller, C.;Shi, Yong de; Artmann, Gerhard Michael
JF  - Pharmacology and Toxicology. 85 (1999)
Y1  - 1999
SN  - 0902-9938
SP  - 206
EP  - 211
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Hovav, T.
A1  - Goldfarb, A.
A1  - Yedgar, S. [u.a.]
T1  - Enhanced adherence of beta-thalassaemic erythrocytes to endothelial cells. Hovav, T., Goldfarb, A.; Artmann, Gerhard Michael, Yedgar, S.; Barstein, G.
JF  - British Journal of Haematology. 106 (1999), H. 1
Y1  - 1999
SN  - 1365-2141
SP  - 178
EP  - 181
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Kelemen, Christina
A1  - Porst, Dariusz
A1  - Büldt, G. [u.a.]
T1  - Temperature transitions of protein properties in human red blood cells. Artmann, Gerhard Michael, Kelemen, Christina; Porst, D.; Büldt, G.; Chien, S.
JF  - Biophysical Journal. 75 (1998), H. 6
Y1  - 1998
SN  - 1542-0086
N1  - http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1299989&blobtype=pdf
SP  - 3179
EP  - 3183
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Shi, Young de
A1  - Agosti, R.
A1  - Longhini, E.
T1  - A modified casson equation to characterize blood rheology for hypertension. Shi, Young de; Artmann, Gerhard Michael; Agosti, R.; Longhini, E.
JF  - Clinical Hemorheology Microcirculation. 19 (1998), H. 2
Y1  - 1998
SN  - 1386-0291
SP  - 115
EP  - 127
ER  - 
TY  - JOUR
A1  - Li, Anlan
A1  - Shi, Young de
A1  - Landsmann, B.
A1  - Schankowski-Bouvier, P.
A1  - Dikta, Gerhard
A1  - Bauer, U.
A1  - Artmann, Gerhard
T1  - Hemorheology and walking distance of Peripheral Arterial Occlusive Disease patients during treatment with Ginkgo-biloba extract
JF  - Acta Pharmacologica Sinica = ZHONGUO YAOLI XUEBAO. 19 (1998), H. 5
Y1  - 1998
SN  - 1745-7254
N1  - ISSN der parallelen Ausgabe 1671-4083; China-Zs.-Code: CN31-1347 abstract frei unter
SP  - 417
EP  - 421
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schikarsky, C.
T1  - Ginkgo Biloba extract (EGb 761) protects red blood cells from oxidative damage. Artmann, Gerhard Michael; Schikarsky, C.
JF  - Clinical Hemorheology. 13 (1993), H. 4
Y1  - 1993
SN  - 0271-5198
SP  - 529
EP  - 539
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
T1  - A microscopic photometric method for measuring erythrocyte deformability. Artmann, Gerhard Michael
JF  - Clinical Hemorheology. 6 (1986)
Y1  - 1986
SN  - 0271-5198
SP  - 617
EP  - 627
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schmid-Schönbein, H.
A1  - Grebe, R.
A1  - Teitel, P. [u.a.]
T1  - Restoration of Microsieve Filterability of Human Red Cells After Exposure to Hyperosmolarity and Lactazidosis: Effect of Vinpocetine. Schmid-Schönbein, H.; Grebe, R.; Teitel, P.; Artmann, Gerhard Michael, Eschweiler, H.; Schröder, Susanne
JF  - Drug Development Research. 14 (1988), H. 3-4
Y1  - 1988
SN  - 1098-2299
N1  - Abstracts frei unter:
SP  - 205
EP  - 211
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schmid-Schönbein, H.
A1  - Schröder, Susanne
A1  - Grebe, R. [u.a.]
T1  - Influence of Moxaverine-HCL on Membrane Curvature and Microsieve Filterability of Red Cells after Exposure to Hyperosmolarity and Lactacidosis. Schmid-Schönbein, H.; Schröder, Susanne; Grebe, R.; Artmann, Gerhard Michael, Eschweiler, H; Teitel, P.
JF  - Arzneimittelforschung. 38 (1988), H. 5
Y1  - 1988
SN  - 0004-4172
SP  - 710
EP  - 716
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zang, Werner
T1  - Fully automatic measurement of rheologic parameters of red blood cells = Laborautomat zur Messung mechanischer Eigenschaften roter Blutzellen
JF  - Biomedizinische Technik = Biomedical engineering. 35 (1990), H. Suppl. 3
Y1  - 1990
SN  - 0013-5585
SP  - 94
EP  - 96
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Sung, K.-L. Paul
A1  - Horn, Thomas
A1  - Whittemore, Darren [u.a.]
T1  - Micropipette aspiration of human erythrocytes induces echinocytes via membrane phospholipid translocation. Artmann, Gerhard Michael; Sung, K.-L. Paul; Horn, Thomas; Whittemore, Darren; Norwich, Gerald; Chien, Shu
JF  - Biophysical journal. 72 (1997), H. 3
Y1  - 1997
SN  - 1542-0086
SP  - 1434
EP  - 1441
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Li, Anlan
A1  - Ziemer, J.
A1  - Schneider, G. [u.a.]
T1  - A photometric method to analyze induced erythrocyte shape changes. Artmann, Gerhard Michael; Li, Anlan; Ziemer, J.; Schneider, G.; Sahm, U.: ; Ziemer, J.; Schneider, G.; Sahm, U.
JF  - Biorheology. 33 (1996), H. 3
Y1  - 1996
SN  - 0006-355x
SP  - 251
EP  - 265
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
T1  - 2nd International Conference on Medical Biorheology (ICMB). Shanghai, China, September 13-15, 1995. Shi, Young de, Artmann, Gerhard Michael, Meiselman, Herbert J.
JF  - Biorheology. 33 (1996), H. 6
Y1  - 1996
SN  - 0006-355x
SP  - 505
EP  - 507
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
T1  - Microscopic photometric quantification of stiffness and relaxation time of red blood cells in a flow chamber. Artmann, Gerhard Michael
JF  - Biorheology. 32 (1995), H. 5
Y1  - 1995
SN  - 0006-355x
SP  - 553
EP  - 570
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Li, Anlan
T1  - Dihydroergocryptine maintains erythrocyte fluidity in acidotic and hyperosmolar suspensions modelling hypoxic and ischemic microcirculation. Li, Anlan; Artmann, Gerhard Michael
JF  - Clinical Hemorheology. 15 (1994), H. 2
Y1  - 1994
SN  - 0271-5198
SP  - 133
EP  - 146
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schmid-Schönbein, H.
T1  - The microscope-photometrical-monolayer-technique- a new principle for analyzing the distribution of rheological responses in pathological and experimentally modified red cell populations. Artmann, Gerhard Michael; Schmid-Schönbein, H.
JF  - Microcirculation, an update : proceedings of the Fourth World Congress for Microcirculation, Tokyo, Japan, July 26-30, 1987
Y1  - 1987
SN  - 0444809511
N1  - World Congress for Microcirculation (4, 1987, Tokyo;); International congress series ; 755
SP  - 475
EP  - 477
PB  - Excerpta Medica
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Teitel, P.
A1  - Schmid-Schönbein, H.
T1  - Variable rheologische Antwort der Erythrozyten auf den Einfluß von Xantinderivaten (Coffein): Experimentelle Differenzierung von "Responders" und "Nonresponders"
JF  - 11. Jahrestagung der Gesellschaft für Mikrozirkulation
Y1  - 1987
SP  - 100
EP  - 105
PB  - Karger [u.a.]
CY  - Basel [u.a.]
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Grebe, R.
A1  - Homrighausen, A.
A1  - Wolff, H.
A1  - [u.a.], 
T1  - Response of normal and diabetic erythrocytes to membrane deformation by chemical and mechanical forces. Artmann, Gerhard Michael; Grebe, R.; Homrighausen, A.; Wolff, H.; Teitel, P.; Schmid-Schönbein, H.
JF  - 12. Jahrestagung der Gesellschaft für Mikrozirkulation
Y1  - 1988
SP  - 196
EP  - 200
PB  - Karger [u.a.]
CY  - Basel [u.a.]
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Keller, U.
A1  - Haas, J.
A1  - Amort, U.
A1  - Zang, Werner
A1  - Karschies, S.
T1  - Technik und ausgewählte Applikationen eines Membranbioassays roter Blutzellen
JF  - Biomedizinische Technik = Biomedical engineering. 36 (1991)
Y1  - 1991
SN  - 0013-5585
VL  - 36
IS  - S1
SP  - 450
EP  - 451
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Montanus, M.
A1  - Teitel, P.
T1  - Die photometrische Kapillaraggregation- ein neues Verfahren zur Messung der Erythrozytenaggregation. Montanus, M.; Artmann, Gerhard Michael; Teitel, P.
JF  - Biomedizinische Technik = Biomedical engineering. 36 (1991)
Y1  - 1991
SN  - 0013-5585
SP  - 213
EP  - 215
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Witte, Ch.
T1  - Expertensystem für Personal Computer zur Strukturbestimmung des Circulus Arteriosus Willisii mittels transkranieller Dopplersonografie. Witte, Ch.; Artmann, Gerhard Michael
JF  - Biomedizinische Technik = Biomedical engineering. 36 (1991)
Y1  - 1991
SN  - 0013-5585
SP  - 228
EP  - 230
ER  - 
TY  - JOUR
A1  - Maggakis-Kelemen, C.
A1  - Bork, M.
A1  - Kayser, Peter
A1  - Biselli, Manfred
A1  - Artmann, Gerhard
T1  - Biological and mechanical quality of red blood cells cultured from human umbilical cord blood stem cells
JF  - Medical and biological engineering and computing. 41 (2003), H. 3
Y1  - 2003
SN  - 0140-0118
SP  - 350
EP  - 356
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Hueck, Isgard S.
A1  - Rossiter, Katharine
A1  - Schmid-Schönbein, Geert W.
T1  - Fluid Shear Attenuates Endothelial Pseudopodia Formation into the Capillary Lumen / Hueck, Isgard S. ; Rossiter, Katharine ; Artman, Gerhard M. ; Schmid-Schönbein, Geert W.
JF  - Microcirculation. 15 (2008), H. 6
Y1  - 2008
SN  - 1549-8719
SP  - 531
EP  - 542
ER  - 
TY  - JOUR
A1  - Kaul, D. K.
A1  - Koshkaryev, A.
A1  - Artmann, Gerhard
A1  - Barshtein, G.
A1  - Yedgar, S.
T1  - Additive effect of red blood cell rigidity and adherence to endothelial cells in inducing vascular resistance
JF  - American Journal of Physiology : Heart and Circulation Physiology . 295 (2008), H. 4
Y1  - 2008
SN  - 1522-1539
VL  - 295
IS  - 4
SP  - H1788
EP  - H1793
ER  - 
TY  - JOUR
A1  - Becker, C.
A1  - Wallang, C.
A1  - Artmann, Gerhard
A1  - Jakse, G.
T1  - Mechanotransduction-bioreactor for tissue engineering of a ureter prosthesis
JF  - International Journal of Artificial Organs, The
Y1  - 2008
SN  - 0391-3988
N1  - Abstracts from the XXXV Congress of the European Society for Artificial Organs: 'Towards Future Biomedical Technologies' - ORAL PRESENTATIONS
VL  - 31
IS  - 7
SP  - 583
EP  - 583
ER  - 
TY  - JOUR
A1  - Bork, M.
A1  - Kelemen, C.
A1  - Biselli, Manfred
A1  - Artmann, Gerhard
T1  - Biophysikalische Charakterisierung ex vivo kultivierter menschlicher Erythrozythen
JF  - Biomedizinische Technik = Biomedical Engineering. 45 (2000), H. s1
Y1  - 2000
SN  - 1862-278X
SP  - 471
EP  - 472
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Stache, O.
A1  - Königsfeld, J.
T1  - Temperaturabhängigkeit der Pseudopodienbildung und Rückbildung von Granulozyten / Stache, O. ; Königsfeld, J. ; Artmann, G. M.
JF  - Biomedizinische Technik = Biomedical Engineering. 45 (2000), H. s1
Y1  - 2000
SN  - 1862-278X
SP  - 450
EP  - 451
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Trzewik, J.
A1  - Schmid-Schönbein, G. W.
T1  - Investigation on lymphatic endothelial microvalves / Trzewik, J. ; Artmann, G. M. ; Schmid-Schönbein, G. W.
JF  - Biomedizinische Technik = Biomedical Engineering. 45 (2000), H. s1
Y1  - 2000
SN  - 1862-278X
SP  - 521
EP  - 522
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Vogel, A.
A1  - Zink, S.
A1  - Stache, O.
T1  - Entwicklung eines automatisierten, computergesteuerten Permeabilitätsanalysators zur Messung an Endothelzellen / Vogel, A. ; Zinke, S. ; Stache, O. ; Königsfeld, J. ; Artmann, G.
JF  - Biomedizinische Technik = Biomedical Engineering. 45 (2000), H. s1
Y1  - 2000
SN  - 1862-278X
SP  - 479
EP  - 480
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
T1  - Cellular engineering - a challenge for engineers? / Artmann, G. M.
JF  - Biomedizinische Technik = Biomedical Engineering. 45 (2000), H. s1
Y1  - 2000
SN  - 1862-278X
SP  - 449
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Kelemen, C.
A1  - Porst, Dariusz
A1  - Büldt, G.
T1  - Cellular engineering: Crash tests an menschlichen Erythrozyten geben Aufschluß über versteckte Materialeigenschaften zellulärer Proteine / Artmann, G. M. ; Kelemen, Ch. ; Porst, D. ; Büldt, G. ; Chien, Shu
JF  - Biomedizinische Technik / Biomedical Engineering. 43 (1998), H. s1
Y1  - 1998
SN  - 1862-278
SP  - 446
EP  - 447
ER  - 
TY  - JOUR
A1  - Eijck, Lambert van
A1  - Demmel, Franz
A1  - Artmann, Gerhard
A1  - Stadtler, Andreas Maximilian
T1  - Macromolecular dynamics in red blood cells investigated using neutron spectroscopy
JF  - Journal of the Royal Society Interface
Y1  - 2011
SN  - 1742-5689
VL  - 8
IS  - 57
SP  - 590
EP  - 600
PB  - The Royal Society
CY  - London
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zang, Werner
T1  - Vollautomatische Messung rheologischer Parameter roter Blutzellen
JF  - Biomedizinische Technik / Biomedical Engineering
Y1  - 1990
SN  - 0013-5585
VL  - 35
IS  - S3
SP  - 94
EP  - 96
ER  - 
TY  - JOUR
A1  - Stadler, Alexander Maximilian
A1  - Garvey, Christopher J.
A1  - Embs, Jan Peter
A1  - Koza, Michael Marek
A1  - Unruh, Tobias
A1  - Artmann, Gerhard
A1  - Zaccai, Guiseppe
T1  - Picosecond dynamics in haemoglobin from different species: A quasielastic neutron scattering study
JF  - Biochimica et biophysica acta (BBA): General Subjects
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.bbagen.2014.06.007
SN  - 1872-8006 (E-Journal); 0304-4165 (Print)
VL  - 1840
IS  - 10
SP  - 2989
EP  - 2999
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Ballmann, J.
T1  - Computation of impacts on elastic solids by methods of bicharacteristics
JF  - Computational Mechanics '88 : theory and applications ; proceedings of the International Conference on Computational Engineering Science April 10-14, 1988, Atlanta, GA, USA ; vol. 2
N2  - Shock waves, explosions, impacts or cavitation bubble collapses may generate stress waves in solids causing cracks or unexpected dammage due to focussing, physical nonlinearity or interaction with existing cracks. There is a growing interest in wave propagation, which poses many novel problems to experimentalists and theorists.
KW  - Bicharakteristikenverfahren
KW  - Elastizität
KW  - elastic solids
KW  - bicharacteristics
Y1  - 1988
SP  - 1719
EP  - 1722
ER  - 
TY  - JOUR
A1  - Levers, A.
A1  - Staat, Manfred
A1  - Laack, Walter van
T1  - Analyse der Langzeitwirkung der MBST® KernspinResonanzTherapie bei Gonarthrose
T1  - Analysis of the Long-term Effect of the MBST® Nuclear Magnetic Resonance Therapy on Gonarthrosis
N2  - Originalausgabe: Orthopädische Praxis Jg. 47. 2011 H. 11; S. 536-543. Mit freundlicher Genehmigung des Verlags Zusammenfassung: Auf der Basis von Patientenabfragen mittels Fragebogen zum Schmerzempfinden und zur Einschränkung bei Aktivitäten des alltäglichen Lebens wird die Langzeitwirkung der MBST® KernspinResonanz-Therapie bei Gonarthrose untersucht. An der Studie nahmen 39 Patienten teil, bei denen die Therapie bis zu vier Jahre zurückliegt. Neben einer Gesamtbetrachtung wird der Erfolg auch in Abhängigkeit von Alter, Geschlecht und sportlicher Aktivität analysiert. Insgesamt weist die Studie auf eine anhaltende Verbesserung des Gesundheitszustands mit zum Teil deutlicher Schmerzlinderung auch noch nach vier Jahren hin, jedoch mit einer leichten Schmerzzunahme gegen Ende des Untersuchungszeitraums von vier Jahren. Eine tendenziell positivere Wirkung bei Frauen, älteren Menschen oder auch sportlich nicht-aktiven Patienten lässt auf eine mögliche Beeinflussung des Erfolgs der Therapie durch (Über-)Belastung im Alltag schließen. Ein zusätzlich positiver Effekt der Therapie auf die Knochendichte ist ebenfalls denkbar, dies bleibt jedoch offen.
N2  - Original edition: Orthopädische Praxis Vol. 47. 2011 Issue 11; P. 536-543. On the friendly authority of the publisher. Abstract: Based upon a questionnaire for patient-queries regarding pain-sensation and activity-restrictions during everyday task, the long-term effect of MBST® nuclear magnetic resonance therapy is studied in osteoarthritis of the knee. 39 patients, whose therapy dates back up to four years, participated in the study. In addition to an overall view, the success of this therapy is also analyzed regarding age, gender and physical activities. Overall, the study pointed out a sustained improvement in the patients´ local health-status with a significant pain-relief even after four years, but also with a slight increase in pain towards the end of that four-year period. There tends to be more positive effect on women, on elderly of also on even non-sports-active patients which suggest a possible influence by daily (over)-stressing on the success of the therapy. An additional positive effect of the therapy on bone density is also conceivable, however, this remains open.
KW  - Kniegelenkarthrose
KW  - Gonarthrose
KW  - MBST
KW  - Arthosetherapie
KW  - gonarthrosis
KW  - MBST
KW  - arthrosis therapy
Y1  - 2011
ER  - 
TY  - JOUR
A1  - Gorissen, P.
A1  - Staat, Manfred
A1  - Laack, Walter van
T1  - Experimentelle Kraftmessungen als Beitrag zur Wirksamkeitsbeurteilung von Schienbeinschonern im Fußballsport
T1  - Experimental measurement of forces as a contribution to evaluate the effectiveness of shin guards in soccer
JF  - OUP Zeitschrift für die orthopädische und unfallchirurgische Praxis
N2  - Diese Studie beschäftigte sich mit der Dämpfungswirkung von Schienbeinschonern, wie sie beim Fußball zum Einsatz kommen. Sie wurde mit Hilfe eines Pendelhammers durchgeführt, der verschiedene Aufschlagkräfte auf die Schoner ermöglichte. Dabei wurde deutlich, dass Schienbeinschoner die beste Wirkung bei Maximalkräften unterhalb von 5kN erreichen können, dass bei größerer Belastung allerdings Verbesserungsbedarf besteht. Hierfür konnte, u.a. durch den Einsatz neuer Materialien, ein guter Ansatzpunkt im „adäquaten Zusammenspiel von Schale und Polsterung“ der Schoner gefunden werden. Die Untersuchung hat weiterhin gezeigt, dass zumindest teilweise eine deutliche Verbesserung der Dämpfungswirkung der Schienbeinschoner in den letzten Jahren erreicht werden konnte.
N2  - This study was conducted to test the damping effects of commercially available soccer shin guards on their damping effects. Therefore a pendulum impact apparatus with varying impact forces was used. It became clear that shin guards show the best effect at maximum forces of less than 5kN. There is however a need for improvement at greater impact forces. A good starting point was found in an „appropriate interaction of shell and padding” of the shin guard. It was further clarified that a significant improvement on the damping effect could be achieved at least partially over the last years.
KW  - Fußball
KW  - Schienbeinschoner
KW  - Aufschlagversuch
Y1  - 2012
U6  - http://dx.doi.org/10.3238/oup.2012.0010-0015
SN  - 2193-5785
VL  - 1
IS  - 1
SP  - 10
EP  - 15
PB  - Deutscher Ärzte-Verlag
CY  - Köln
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Fiorini, G. L.
A1  - Lensa, W. von
A1  - Burgazzi, L.
T1  - Reliability Methods for Passive Safety Functions
JF  - Proceedings of the SMiRT 14 Post Conference Seminar No 18 on Passive Safety Features in Nuclear Installations
Y1  - 1997
CY  - Pisa
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Heitzer, M.
T1  - Limit and Shakedown Analysis for Plastic Safety of Complex Structures
JF  - Transactions of the 14th International Conference on Structural Dynamics in Reactor Technology (SMiRT-14) / Livolant, M. [ed]
Y1  - 1997
N1  - Vol. B, Paper B02/2
SP  - 33
EP  - 40
CY  - Lyon
ER  -