Conference Proceeding
Refine
Year of publication
Document Type
- Conference Proceeding (147) (remove)
Language
- English (147) (remove)
Keywords
- Finite-Elemente-Methode (5)
- Clusterion (4)
- Limit analysis (4)
- Sonde (4)
- solar sail (4)
- Air purification (3)
- Eisschicht (3)
- Hämoglobin (3)
- Luftreiniger (3)
- MASCOT (3)
- Plasmacluster ion technology (3)
- Raumluft (3)
- Shakedown analysis (3)
- Bruchmechanik (2)
- Erythrozyt (2)
- GOSSAMER-1 (2)
- Kohlenstofffaser (2)
- Lipopolysaccharide (2)
- Spacecraft (2)
- Stickstoffmonoxid (2)
- Trajectory Optimization (2)
- celldrum technology (2)
- lipopolysaccharides (2)
- multiple NEA rendezvous (2)
- nitric oxide gas (2)
- small spacecraft (2)
- Adsorption (1)
- Analytischer Zulaessigkeitsnachweis (1)
- Anastomose (1)
- Anastomosis (1)
- Antarctica (1)
- Asteroid Deflection (1)
- Attitude dynamics (1)
- Autofluoreszenzverfahren (1)
- Automated Optimization (1)
- Bakterien (1)
- Biomechanics (1)
- Biomechanik (1)
- Biomedizinische Technik (1)
- Chance constrained programming (1)
- Dattel (1)
- Dekontamination (1)
- EEG (1)
- Einspiel-Analyse (1)
- Einspielen <Werkstoff> (1)
- Elektrodynamik (1)
- Endothelzelle (1)
- Evolution of damage (1)
- Evolutionary Neurocontrol (1)
- Exact Ilyushin yield surface (1)
- Extension fracture (1)
- Extension strain criterion (1)
- FEM (1)
- Fibroblast (1)
- Finite element method (1)
- First Order Reliabiblity Method (1)
- First-order reliability method (1)
- Force (1)
- Gossamer (1)
- Gossamer structures (1)
- Hybrid Propellants (1)
- Hydrodynamik (1)
- Hydrogel (1)
- Impedance Spectroscopy (1)
- Interplanetary flight (1)
- Iterative learning control (1)
- Jupiter (1)
- Knee (1)
- Körpertemperatur (1)
- Lichtstreuungsbasierte Instrumente (1)
- Load modeling (1)
- Low-Thrust Propulsion (1)
- Mars (1)
- Mechanische Beanspruchung (1)
- Mohr–Coulomb criterion (1)
- Multiphase (1)
- Natriumhypochlorit (1)
- Orbital dynamics (1)
- PFM (1)
- PHILAE (1)
- Pflanzenphysiologie (1)
- Pflanzenscanner (1)
- Planetary Protection (1)
- Planetary exploration (1)
- Proteine (1)
- Random variable (1)
- Ratcheting (1)
- Reliability of structures (1)
- Reusable Rocket Engines (1)
- Sensitivity (1)
- Sepsis (1)
- Sequence-Search (1)
- Shakedown (1)
- Sleep EEG (1)
- Small Solar System Body Lander (1)
- Small Spacecraft (1)
- Solar Power Sail (1)
- Solar Sail (1)
- Solar sail (1)
- Spacecraft Trajectory Optimization (1)
- Stochastic programming (1)
- Training (1)
- Wasserbrücke (1)
- Wasserstoffperoxid (1)
- activated nanostructured carbon (1)
- aktivierte nanostrukturierte Kohlenstofffaser (1)
- asteroid lander (1)
- asteroid sample return (1)
- autofluorescence-based detection system (1)
- biopotential electrodes (1)
- contractile tension (1)
- cytosolic water diffusion (1)
- date palm tree (1)
- design-by-analysis (1)
- finite element analysis (1)
- flotilla missions (1)
- habitability (1)
- heliosphere (1)
- hemoglobin (1)
- hemoglobin dynamics (1)
- hydrogel (1)
- ice moons (1)
- icy moons (1)
- ion propulsion (1)
- kontraktile Spannung (1)
- life detection (1)
- light scattering analysis (1)
- limit and shakedown analysis (1)
- linear kinematic hardening (1)
- low-thrust (1)
- low-thrust trajectory optimization (1)
- material shakedown (1)
- nanostructured carbonized plant parts (1)
- nanostrukturierte carbonisierte Pflanzenteile (1)
- near-Earth asteroid (1)
- nonlinear kinematic hardening (1)
- planetary defence (1)
- plant scanner (1)
- plasma generated ions (1)
- probabilistic fracture mechanics (1)
- protein (1)
- ratchetting (1)
- responsive space (1)
- rhAPC (1)
- sample return (1)
- second-order reliability method (1)
- sensors (1)
- shakedown (1)
- shakedown analysis (1)
- small solar system body characterisation (1)
- small spacecraft asteroid lander (1)
- small spacecraft solar sail (1)
- solar sails (1)
- solar system (1)
- space missions (1)
- subglacial aquatic ecosystems (1)
- subsurface ice (1)
- subsurface ice research (1)
- subsurface probe (1)
- system engineering (1)
- underwater vehicle (1)
- water bridge phenomenon (1)
Institute
- IfB - Institut für Bioengineering (147) (remove)
Pulmonary arterial cannulation is a common and effective method for percutaneous mechanical circulatory support for concurrent right heart and respiratory failure [1]. However, limited data exists to what effect the positioning of the cannula has on the oxygen perfusion throughout the pulmonary artery (PA). This study aims to evaluate, using computational fluid dynamics (CFD), the effect of different cannula positions in the PA with respect to the oxygenation of the different branching vessels in order for an optimal cannula position to be determined. The four chosen different positions (see Fig. 1) of the cannulas are, in the lower part of the main pulmonary artery (MPA), in the MPA at the junction between the right pulmonary artery (RPA) and the left pulmonary artery (LPA), in the RPA at the first branch of the RPA and in the LPA at the first branch of the LPA.
Solar-electric propulsion (SEP) is superior with
respect to payload capacity, flight time and
flexible launch window to the conventional
interplanetary transfer method using chemical
propulsion combined with gravity assists. This fact
results from the large exhaust velocities of electric
low–thrust propulsion and is favourable also for
missions to the giant planets, Kuiper-belt objects
and even for a heliopause probe (IHP) as shown in
three studies by the authors funded by DLR. They
dealt with a lander for Europa and a sample return
mission from a mainbelt asteroid [1], with the
TANDEM mission [2]; the third recent one
investigates electric propulsion for the transfer to
the edge of the solar system.
All studies are based on triple-junction solar arrays,
on rf-ion thrusters of the qualified RIT-22 type and
they use the intelligent trajectory optimization
program InTrance [3].
Human induced pluripotent stem cells (hiPSCs) have shown to be promising in disease studies and drug screenings [1]. Cardiomyocytes derived from hiPSCs have been extensively investigated using patch-clamping and optical methods to compare their electromechanical behaviour relative to fully matured adult cells. Mathematical models can be used for translating findings on hiPSCCMs to adult cells [2] or to better understand the mechanisms of various ion channels when a drug is applied [3,4]. Paci et al. (2013) [3] developed the first model of hiPSC-CMs, which they later refined based on new data [3]. The model is based on iCells® (Fujifilm Cellular Dynamics, Inc. (FCDI), Madison WI, USA) but major differences among several cell lines and even within a single cell line have been found and motivate an approach for creating sample-specific models. We have developed an optimisation algorithm that parameterises the conductances (in S/F=Siemens/Farad) of the latest Paci et al. model (2018) [5] using current-voltage data obtained in individual patch-clamp experiments derived from an automated patch clamp system (Patchliner, Nanion Technologies GmbH, Munich).
Attitude and Orbital Dynamics Modeling for an Uncontrolled Solar-Sail Experiment in Low-Earth Orbit
(2015)
Gossamer-1 is the first project of the three-step Gossamer roadmap, the purpose of which is to develop, prove and demonstrate that solar-sail technology is a safe and reliable propulsion technique for long-lasting and high-energy missions. This paper firstly presents the structural analysis performed on the sail to understand its elastic behavior. The results are then used in attitude and orbital simulations. The model considers the main forces and torques that a satellite experiences in low-Earth orbit coupled with the sail deformation. Doing the simulations for varying initial conditions in attitude and rotation rate, the results show initial states to avoid and maximum rotation rates reached for correct and faulty deployment of the sail. Lastly comparisons with the classic flat sail model are carried out to test the hypothesis that the elastic behavior does play a role in the attitude and orbital behavior of the sail