Article
Refine
Year of publication
Institute
- Fachbereich Medizintechnik und Technomathematik (1352)
- INB - Institut für Nano- und Biotechnologien (503)
- Fachbereich Chemie und Biotechnologie (474)
- Fachbereich Elektrotechnik und Informationstechnik (407)
- IfB - Institut für Bioengineering (404)
- Fachbereich Energietechnik (357)
- Fachbereich Luft- und Raumfahrttechnik (249)
- Fachbereich Maschinenbau und Mechatronik (152)
- Fachbereich Wirtschaftswissenschaften (116)
- Fachbereich Bauingenieurwesen (69)
Language
- English (3264) (remove)
Document Type
- Article (3264) (remove)
Keywords
- Einspielen <Werkstoff> (7)
- avalanche (5)
- Earthquake (4)
- FEM (4)
- Finite-Elemente-Methode (4)
- LAPS (4)
- additive manufacturing (4)
- biosensors (4)
- field-effect sensor (4)
- frequency mixing magnetic detection (4)
- CellDrum (3)
- Heparin (3)
- Label-free detection (3)
- capacitive field-effect sensor (3)
- hydrogen peroxide (3)
- impedance spectroscopy (3)
- magnetic nanoparticles (3)
- shakedown analysis (3)
- snow (3)
- sustainability (3)
- tobacco mosaic virus (TMV) (3)
- Acyl-amino acids (2)
- Aeroelasticity (2)
- Aminoacylase (2)
- Bacillaceae (2)
- Bacillus atrophaeus (2)
- Biotechnological application (2)
- Boundary integral equations (2)
- Brake set-up (2)
- Butanol (2)
- CFD (2)
- Capacitive field-effect sensor (2)
- Chemometrics (2)
- Conductive boundary condition (2)
- Drinfeld modules (2)
- Einspielanalyse (2)
- Empirical process (2)
- Fault detection (2)
- Field-effect sensor (2)
- Freight rail (2)
- Germany (2)
- Goodness-of-fit test (2)
- Hot S-parameter (2)
- IR spectroscopy (2)
- Independence test (2)
- Light-addressable potentiometric sensor (2)
- Lipopolysaccharide (2)
- MINLP (2)
- Methane (2)
- NMR spectroscopy (2)
- Obstacle avoidance (2)
- Paired sample (2)
- Parametric bootstrap (2)
- Path planning (2)
- Principal component analysis (2)
- Pump System (2)
- Raman spectroscopy (2)
- SLM (2)
- Shakedown analysis (2)
- Simulation (2)
- Standardization (2)
- Stiffness (2)
- Subtilases (2)
- Subtilisin (2)
- Traglastanalyse (2)
- Transcendence (2)
- Transmission eigenvalues (2)
- UAV (2)
- bacterial cellulose (2)
- bubble column (2)
- capacitive field-effect sensors (2)
- carbonized rice husk (2)
- constructive alignment (2)
- damage (2)
- energy efficiency (2)
- examination (2)
- factory planning (2)
- fused filament fabrication (2)
- gold nanoparticles (2)
- harmonic radar (2)
- immobilization (2)
- light-addressable potentiometric sensor (2)
- likelihood ratio test (2)
- limit analysis (2)
- locomotion (2)
- long-term retention (2)
- manufacturing flexibility (2)
- methanation (2)
- microfluidics (2)
- multimodal (2)
- muscle fascicle behavior (2)
- not identically distributed (2)
- penicillinase (2)
- plug flow reactor (2)
- practical learning (2)
- prebiotic (2)
- qNMR (2)
- rapid tooling (2)
- rebound-effect (2)
- remote sensing (2)
- renewable resources (2)
- shakedown (2)
- t-modules (2)
- ultrasound (2)
- ultrasound imaging (2)
- (Bio)degradation (1)
- (Poly)saccharides (1)
- 197m/gHg (1)
- 1P hub loads (1)
- 3-D printing (1)
- 316L (1)
- 3D nonlinear finite element model (1)
- 802.15.4 (1)
- ABE (1)
- Acceleration (1)
- Achilles tendon (1)
- Acid crash (1)
- Active humidity control (1)
- Actors (1)
- Actuator disk modelling (1)
- Acylation (1)
- Adaptive control (1)
- Additive Manufacturing (1)
- Additive manufacturing (1)
- Afterload (1)
- Ageing (1)
- Air purification (1)
- Aircraft sizing (1)
- Algal Turf Scrubber (1)
- Algal–bacterial bioflm (1)
- Alginate beads (1)
- Alkalihalobacillus okhensis (1)
- Aloe vera (1)
- AlterG (1)
- Alternating plasticity (1)
- Alzheimer's disease (1)
- Analysis (1)
- Analytischer Zulaessigkeitsnachweis (1)
- Anammox (1)
- Anastomotic leakage (1)
- Anatomy (1)
- Annulus Fibrosus (1)
- Antarctic Glaciology (1)
- Antibias (1)
- Architectural design (1)
- Architectural gear ratio (1)
- Artificial intelligence (1)
- Assembly (1)
- Assistive technology (1)
- Asymptotic efficiency (1)
- Authenticity (1)
- Autolysis (1)
- Automated driving (1)
- Automatic control (1)
- Automotive application (1)
- Automotive safety approach (1)
- Autonomy (1)
- Avalanche (1)
- Axialbelastung (1)
- Axially cracked pipe (1)
- BET (1)
- Bacillus atrophaeus spores (1)
- Bacillus sp (1)
- Bacterial cellulose (1)
- Balance (1)
- Balanced hypergraph (1)
- Bank-issued Warrants (1)
- Basis Reduktion (1)
- Basis reduction (1)
- Bauingenieurwesen (1)
- Bayesian statistics (1)
- Behaviour factor q (1)
- Benchmark (1)
- Bicharakteristikenverfahren (1)
- Bio-inspired systems (1)
- Bioabsorbable (1)
- Biocatalysis (1)
- Biocomposites (1)
- Biofuel (1)
- Biogas (1)
- Biomass (1)
- Biomechanical simulation (1)
- Bioreaktor (1)
- Biorefinery (1)
- Biosolubilization (1)
- Biosurfactants (1)
- Blade element method (1)
- Bloom’s Taxonomy (1)
- Bluetooth (1)
- Blutzellenlagerung (1)
- Bone quality and biomechanics (1)
- Booster Station (1)
- Booster Stations (1)
- Bootstrap (1)
- Bootstrapping (1)
- Borehole heat exchanger (1)
- Boundary integral equations, (1)
- Bragg peak (1)
- Brake test (1)
- Braking curves (1)
- Brands (1)
- Broad pH spectrum (1)
- Brownian Pillow (1)
- Buffering Capacity (1)
- C. acetobutylicum (1)
- CAD (1)
- CAV (1)
- CFD propeller simulation (1)
- CNOT (1)
- CO2 emission reduction targets (1)
- CRISPR/Cas9 (1)
- Calorimetric gas sensor (1)
- Capacitive field-effect (1)
- Capacitive model (1)
- Carbon sources (1)
- Cardiac myocytes (1)
- Cardiac tissue (1)
- Cardiovascular MRI (1)
- Cardiovascular Magnetic Resonance (1)
- Carrier solvents (1)
- Categorial variable (1)
- Cell permeability (1)
- Cellular force (1)
- Cellulose nanostructure (1)
- Cement infiltration (1)
- Cementoblast (1)
- Censored data (1)
- Centrifugal twisting moment (1)
- Chance Constraint (1)
- Change (1)
- Chaperone (1)
- Chaperone co-expression (1)
- Charging station (1)
- Chemical images (1)
- Chemical imaging sensor (1)
- Chemical sensor (1)
- Chondroitin sulfate (1)
- Circuit simulation (1)
- Circular Dichroism (1)
- Circular bioeconomy (1)
- Civil engineering (1)
- Clinical decision support systems (1)
- Clostridium acetobutylicum (1)
- Clusterion (1)
- Co-managed care (1)
- Coal (1)
- Collective risk model (1)
- Commercial Vehicle (1)
- Common Rail Injection System (1)
- Competence Developing Games (1)
- Competitiveness (1)
- Complex System (1)
- Complex-valued eigenvalues (1)
- Compliance (1)
- Compression (1)
- Computational biomechanics (1)
- Concomitant (1)
- Conditions (1)
- Conductive Boundary Condition (1)
- Consensus (1)
- Conservation laws (1)
- Constitutive model (1)
- Contractile tension (1)
- Contractility (1)
- Convex optimization (1)
- Cost function (1)
- Cost-effectiveness (1)
- Coverage probability (1)
- Cramér-von-Mises statistic (1)
- Cramér-von-Mises test (1)
- Crashworthiness (1)
- Cross border adjustment mechanism (1)
- Crude heparin (1)
- Crámer–von-Mises distance (1)
- Culture media (1)
- Cyclotron production (1)
- C–V method (1)
- DAC (1)
- DLR-ESTEC GOSSAMER roadmap for solar sailing (1)
- DNA biosensor (1)
- DNA hybridization (1)
- DPA (dipicolinic acid) (1)
- Damage mechanics theory (1)
- Data-driven models (1)
- Decomposition (1)
- Decoupling (1)
- Deformation (1)
- Dehydrogenase (1)
- Design process (1)
- Design-by-analysis (1)
- Detergent protease (1)
- Deuterated solvents (1)
- Deuterium NMR (1)
- Diaphorase (1)
- Diesel Engine (1)
- Dietary supplements (1)
- Dimensional splitting (1)
- Disc Degeneration (1)
- Discontinuous fractures (1)
- Discourse ethics (1)
- Discrete Optimization (1)
- Disposition Effect (1)
- Distributed Control Systems, (1)
- Diversity Management (1)
- Drag estimation (1)
- Driver assistance system (1)
- Driving cycle recognition (1)
- Druckbeanspruchung (1)
- Druckbehälter (1)
- Druckbelastung (1)
- Druckgeräte (1)
- Drug simulation (1)
- Dry-low-NOx (DLN) combustion (1)
- Duality (1)
- Dynamic simulation (1)
- E-Mobility (1)
- E. coli detection (1)
- ECMS (1)
- EGG (1)
- EIS capacitive sensor (1)
- ELISA (1)
- ES-FEM (1)
- Effective modal mass (1)
- Eigenvalue trajectories (1)
- Einspiel-Analyse (1)
- Einspiel-Kriterium (1)
- Einspielen (1)
- Elastizität (1)
- Elderly (1)
- Electrochemical impedance spectroscopy (1)
- Electrolyte–insulator–semiconductor (1)
- Electromagnetism (1)
- Electromechanical modeling (1)
- Electronic cigarettes (1)
- Electronic vehicle (1)
- Elemental (1)
- Emilia-Romagna earthquake (1)
- Empirical consequence curves (1)
- Empirical fragility functions (1)
- End-to-end colorectal anastomosis (1)
- Endothelial cells (1)
- Endothelial dysfunction (1)
- Energy management strategies (1)
- Energy-intensive industry (1)
- Engineering Application (1)
- Engineering Habitus (1)
- Enterprise information systems (1)
- Entropy solution (1)
- Environmental impact (1)
- Enzymatic biosensor (1)
- Enzyme coverage (1)
- Enzyme logic gate (1)
- Enzyme-linked immunosorbent assay (1)
- Epithel (1)
- Equivalence test (1)
- Esophageal Doppler monitor (1)
- European Transient Cycle (1)
- Eutectic Silver Copper alloy (1)
- Experiment (1)
- Experimental validation (1)
- Explainability (1)
- Exponential Euler scheme, (1)
- Exponential time differencing (1)
- Extension–twist coupling (1)
- External knee adduction moments (1)
- Extracellular enzymes (1)
- Extraterrestrial Glaciology (1)
- FS-FEM (1)
- Fall prevention (1)
- Fault approximation (1)
- Feature selection (1)
- Fehlerstellen (1)
- Fibroblast (1)
- Field effect (1)
- Field-effect biosensor (1)
- Finite difference methods (1)
- Finite differences (1)
- Finite element analysis (1)
- Finite element method (1)
- Finite element modelling (1)
- Finland (1)
- Fließgrenze (1)
- Floor prices (1)
- Flutter (1)
- Force (1)
- Forces (1)
- Fracture classification (1)
- Fracture configuration (1)
- Fracture simulation (1)
- Frame structure (1)
- Free-base nicotine (1)
- Freeze–thaw process (1)
- Frequency adaption (1)
- Frequency mixing magnetic detection (1)
- Fuel cell (1)
- Full-vehicle crash test (1)
- Functional Delta Method (1)
- Furnace (1)
- Fusion (1)
- GIS (1)
- GOSSAMER-1 (1)
- Ga-68 (1)
- Game-based learning (1)
- Gamification (1)
- Gamma distribution (1)
- Genetic algorithm (1)
- Geriatric (1)
- German (1)
- Glaciological instruments and methods (1)
- Glaucoma (1)
- Global and local collapse (1)
- Glucosamine (1)
- Gold nanoparticle (AuNP) (1)
- Gold nanoparticles (1)
- Goodness-of-fit tests for uniformity (1)
- Grenzwertberechnung (1)
- Ground-level falls (1)
- H2 (1)
- Hadamard differentiability (1)
- Haemodialysis (1)
- Hall’s Theorem (1)
- Halotolerant protease (1)
- Handbike (1)
- Harnleiter (1)
- Hazard assessment (1)
- Health management system (1)
- Heart tissue culture (1)
- Heat transport (1)
- Helmholtz equation (1)
- Hemoglobin structure (1)
- Heterostructure (1)
- High field MRI (1)
- High hydrogen combustion (1)
- High-field NMR (1)
- Higher derivations (1)
- Higher-order codes (1)
- Hip fractures (1)
- Hodgkin–Huxley models (1)
- Hoeffding-Blum-Kiefer-Rosenblatt independence test (1)
- Homogenization (1)
- Hotelling’s T² test (1)
- Human Development Index (1)
- Human factors (1)
- Human-Computer interaction (1)
- Hydrogen combustion (1)
- Hydrogen gas turbine (1)
- Hydrogen peroxide (1)
- Hydrogenotrophic methanogens (1)
- Hyperdifferentials (1)
- Hypergraph (1)
- Hypersecretion (1)
- Hämoglobin (1)
- Hämoglobinstruktur (1)
- INSYSME (1)
- IP-based networks (1)
- IR (1)
- IT security education (1)
- Illustration (1)
- Image Quality Assessment (1)
- Image Quality Score (1)
- Image Reconstruction (1)
- Imaging (1)
- Impedance analysis (1)
- Impedance spectroscopy (1)
- Implicit methods (1)
- In-plane performance, isolation (1)
- Incident analysis (1)
- Inclusion bodies (1)
- Incomplete data (1)
- Individual Investors (1)
- Induced pluripotent stem cells (1)
- Industrial Automation Technology, (1)
- Infill wall design (1)
- Information extraction (1)
- Inorganic ions (1)
- Inotropic compounds (1)
- Instructional design (1)
- Integrated empirical distribution (survival) function (1)
- Interior Neumann eigenvalues (1)
- Interior transmission eigenvalues (1)
- Interior transmission problem (1)
- Interstellar objects (1)
- Interval Time Series (1)
- Intervertebral Disc (1)
- Intradiscal Pressure (1)
- Inverse Scattering (1)
- Inverse dynamic problem (1)
- Inverse kinematic problem (1)
- Inverse scattering (1)
- Inverse scattering problem (1)
- Inverse spectral problem (1)
- Ion channels (1)
- Ions (1)
- Iterative learning control (1)
- Justice (1)
- Keyword analysis (1)
- Kinetic energy (1)
- Knochen (1)
- Knochenbildung (1)
- Knochenchirugie (1)
- Knochendichte (1)
- Koenig’s Theorem (1)
- Kohlenstofffaser (1)
- LPBF (1)
- LPS (1)
- Lab-on-Chip (1)
- Lactobacillus rhamnosus GG (1)
- Landslide tsunamis (1)
- Langevin theory (1)
- Large scale tests (1)
- Larynx position (1)
- Latvia (1)
- Layer-by-layer adsorption (1)
- LbL films (1)
- Left ventriular function (1)
- Level system (1)
- Li7La3Zr2O12 (1)
- LiGaO2 (1)
- Lidar (1)
- Lifting propeller (1)
- Light-addressable Potentiometric Sensor (1)
- Lignocellulose (1)
- Limit analysis (1)
- Linear discriminant analysis (1)
- Linear elastic analysis (1)
- Liver (1)
- Local path planning (1)
- Long COVID (1)
- Low field NMR (1)
- Low-field NMR (1)
- Luftreiniger (1)
- Luxury (1)
- MCDA (1)
- MILP (1)
- MOS (1)
- MR safety (1)
- MR-stethoscope (1)
- MRI (1)
- MST (1)
- MUT measurement; scanner (1)
- Machine learning (1)
- Magnetic field strength (1)
- Magnetic nanoparticles (1)
- Magnetic resonance imaging (MRI) (1)
- Magneto alert sensor (1)
- Mainstream (1)
- Manifestations (1)
- Manipulated variables (1)
- Manufacturer (1)
- Marginal homogeneity test (1)
- Marker-free mutagenesis (1)
- Masonry infill (1)
- Masonry partition walls (1)
- Master stamp (1)
- Matching (1)
- Materialermüdung (1)
- Matrix exponential (1)
- Measurement models (1)
- Measurement uncertainty (1)
- Mechanotransduction (1)
- Medical AI (1)
- Medical radionuclide production (1)
- Medusomyces gisevi (1)
- Meitner-Auger-electron (MAE) (1)
- Metabolic shift (1)
- Metal contaminants (1)
- Metascintillator (1)
- Methanogenesis (1)
- Microcirculation (1)
- Microfluidic solvent extraction (1)
- Micromagnetic simulation (1)
- Micromix combustion (1)
- Mikrosystemtechnik (1)
- Mild cognitive impairment (1)
- Missions (1)
- Mobility (1)
- Mobility tests (1)
- Mobility transition (1)
- Mode converter (1)
- Model-driven software engineering (1)
- Modelica (1)
- Modeling (1)
- Modelling (1)
- Modern constructions (1)
- Molecular modelling (1)
- Molecular weight determination (1)
- Molten salt receiver system (1)
- Molten salt solar tower (1)
- Monotone methods (1)
- Monte Carlo Tree Search (1)
- Morphing (1)
- Multi-criteria decision analysis (1)
- Multi-dimensional partial differential equations (1)
- Multi-objective optimization (1)
- Multi-sample problem (1)
- Multi-storey (1)
- Multianalyte detection (1)
- Multicell (1)
- Multiple TOF kernels (1)
- Multiplexing (1)
- Multirotor UAS (1)
- Muscle (1)
- Muscle Fascicle (1)
- Muscle Force (1)
- Musculoskeletal model (1)
- Musculoskeletal system (1)
- Myocardial infarction and cardiac death (1)
- NGN (1)
- NMR (1)
- NMR exchange relaxometry (1)
- NONOate (1)
- Natural fibres (1)
- Natural frequency (1)
- Negative Feedback Trading (1)
- Negative impedance convertor (1)
- Neural Network (1)
- Nitric Oxide (1)
- Nitric Oxide Donor (1)
- Nitrogen removal (1)
- Non-model-based Evaluation (1)
- Non-parallel fissures (1)
- Nonequilibrium dynamics (1)
- Nonlinear Dynamics (1)
- Nonlinear PDEs (1)
- Nonlinear eigenvalue problems (1)
- Normative standards (1)
- Nucleus Pulposus (1)
- Numerical inversion of Laplace transforms (1)
- Numerical linear algebra (1)
- Numerical modelling (1)
- Numerics (1)
- O2 plasma (1)
- Ocular blood flow (1)
- Online diagnostic (1)
- Operations (1)
- Organic acids (1)
- Organic light-emitting diode display (1)
- Organizational Culture (1)
- Organkultur (1)
- Osteoporose (1)
- Osteoporosis (1)
- Out-of-plane capacity (1)
- Overland flow (1)
- P2G (1)
- PBEE (1)
- PEM fuel cell (1)
- PIV (1)
- PLS-regression (1)
- PROFINET (1)
- Parabolic SPDEs (1)
- Paralympic sport (1)
- Parasitic drag (1)
- Parking (1)
- Partial nitritation (1)
- Penicillin (1)
- Periods (1)
- Permeability (1)
- Permeabilität (1)
- Peroxidase (1)
- Pflanzenphysiologie (1)
- Pflanzenscanner (1)
- Pflanzenstress (1)
- Pharmacology (1)
- Photolithographic mimics (1)
- Physiology (1)
- Piping (1)
- Planning process (1)
- Plant virus (1)
- Plasma (1)
- Plasma diagnostics (1)
- Plasmacluster ion technology (1)
- Plastizität (1)
- Poly(allylamine hydrochloride) (1)
- Poly(d,l-lacticacid) (1)
- Polyimide (1)
- Polylactide acid (1)
- Polymer-matrix composites (1)
- Polysaccharides (1)
- Porositat (1)
- Post-COVID-19 syndrome (1)
- Potential theory (1)
- Powertrain (1)
- Pre-culture (1)
- Precast buildings (1)
- Prediction of molecular features (1)
- Predictive battery discharge (1)
- Preference assessment (1)
- Pressure loaded crack-face (1)
- Prevention (1)
- Probability distribution mapping (1)
- Process virtualization (1)
- Product bundling (1)
- Product-integration (1)
- Progressive plastic deformation (1)
- Propeller (1)
- Propeller aerodynamics (1)
- Propeller elasticity (1)
- Propeller performance (1)
- Propeller whirl flutter (1)
- Proper Orthogonal Decomposition (1)
- Prophylaxis (1)
- Protein structure complexity (1)
- Proximal humerus fracture (1)
- Pulsations (1)
- Pumping systems (1)
- Q-criterion (1)
- Quality control (1)
- Quantitative structure activity relationship (1)
- Quantum chemistry (1)
- Quartz crystal microbalance (1)
- RAMMS (1)
- RVA (1)
- Radar (1)
- Rapid Prototyping (1)
- Rapid Technologie (1)
- Rapid prototyping (1)
- Ratchetting (1)
- Raumluft (1)
- Reaction-diffusion systems (1)
- Real distinct pole (1)
- Real-time monitoring (1)
- Recombinant activated protein C (1)
- Red blood cell storage (1)
- Regionalization (1)
- Rehabilitation Technology and Prosthetics (1)
- Rehabilitation engineering (1)
- Reinforced concrete frame (1)
- Relative air humidity (1)
- Requirements prioritization (1)
- Requirements relations (1)
- Resampling test (1)
- Reservation system (1)
- Resistive temperature detector (1)
- Resolvent Operator (1)
- Resonance-mode measurement (1)
- Response Surface Method (1)
- Retinal vessel analysis (1)
- Retinal vessels (1)
- Robotic rehabilitation (1)
- Rohr (1)
- Rohrbruch (1)
- Rotary encoder (1)
- Rotator cuff (1)
- Running (1)
- S-FEM (1)
- SFCW (1)
- SOA (1)
- SSE) JEL : O33 (1)
- ScaLAPACK (1)
- Scalar parameters (1)
- Schwammknochen (1)
- Seismic design (1)
- Seismic loading (1)
- Selective Catalytic Reduction (1)
- Selective Laser Melting (SLM) (1)
- Self-driving (1)
- Semi-parametric random censorship model (1)
- Septic cardiomyopathy (1)
- Services (1)
- Shakedown (1)
- Shakedown criterion (1)
- Shape and surface properties (1)
- Shoulder (1)
- Shunting (1)
- Silk fibroin (1)
- Simultaneous determination (1)
- Skeletal muscle (1)
- Slab deflection (1)
- Small Aral Sea (1)
- Small spacecraft (1)
- Snow (1)
- Sn₃O₄ (1)
- Soft independent modeling of class analogy (1)
- Software and systems modeling (1)
- Solar sail (1)
- Solitary waves (1)
- Sound Pressure Level (1)
- Source term (1)
- Spectroscopy (1)
- Spleen (1)
- Stahl (1)
- Steel industry (1)
- Stenotrophomonas maltophilia (1)
- Sterilisation process (1)
- Stochastic Programming (1)
- Streptomyces griseus (1)
- Streptomyces lividans (1)
- Stress concentrations (1)
- Structural design (1)
- Structure and Stages (1)
- Strukturanalyse (1)
- Subclacial exploration (1)
- Subglacial lakes (1)
- Surface imprinted polymer (1)
- Surgical Navigation and Robotics (1)
- Surgical staplers (1)
- Survival analysis (1)
- Suspension bridge (1)
- TMV adsorption (1)
- TOF PET (1)
- Tank (1)
- Targeted radionuclide therapy (TRT) (1)
- Ta₂O₅ gate (1)
- Technical Operations Research (1)
- Technical Operations Research (TOR) (1)
- Telecommunication (1)
- Temperaturabhängigkeit (1)
- Tendon Rupture (1)
- Tendon properties (1)
- Tendons (1)
- Tension (1)
- Thermal conductivity (1)
- Thin shell finite elements (1)
- Tinetti test (1)
- Tissue Engineering (1)
- Tobacco mosaic virus (TMV) (1)
- Tomography (1)
- Tool support (1)
- Tools (1)
- Trading Behavior (1)
- Traglast (1)
- Train composition (1)
- Trajectories (1)
- Transfer impedance (1)
- Transformation (1)
- Transient flux distribution (1)
- Transmission Eigenvalues (1)
- Trapeze effect (1)
- Two-phase modelling (1)
- Typographie (1)
- USP (1)
- Uktrahigh field MRI (1)
- Ultrasound (1)
- Uncertainty (1)
- Uniaxial compression test (1)
- Unmanned aerial vehicles (1)
- Unreinforced masonry buildings (1)
- Unsteady aerodynamics (1)
- Uracil-phosphoribosyltransferase (1)
- User study (1)
- Utilization improvement (1)
- VM (1)
- VOF (1)
- VOP compression (1)
- Vapnik–Čhervonenkis class (1)
- Variable height stapler design (1)
- Vascular response (1)
- Vasomotions (1)
- Velocity (1)
- Vertebroplastie (1)
- Vertebroplasty (1)
- Vertex cover (1)
- Vibrio natriegens (1)
- Virtual reality (1)
- Virtuelle Maschine (1)
- Viscous flow (1)
- Viskose Strömung (1)
- Viskosität (1)
- Visual field asymmetry (1)
- Voice assessment (1)
- Volterra integral equation (1)
- Volume of confidence regions (1)
- Volume status (1)
- Wastewater (1)
- Water Distribution (1)
- Water Supply Networks (1)
- Weak organic acids (1)
- Wiegand sensor (1)
- Wind milling (1)
- Wind tunnel experiments (1)
- Wireless Networks (1)
- Wolff's Law (1)
- Wolffsches Gesetz (1)
- Wundheilung (1)
- XOR (1)
- Zeta potential (1)
- Zug-Druck Belastung (1)
- acetoin (1)
- acetoin reductase (1)
- achilles tendon (1)
- actin cytoskeleton (1)
- actuator-sensor system (1)
- adaptive systems (1)
- adipose-derived stromal cells (ASCs) (1)
- adsorption (1)
- agility (1)
- alcoholic beverages (1)
- allocation (1)
- alternierend Verformbarkeit (1)
- aminooctanethiol (1)
- amperometric biosensors (1)
- anaesthetic complications (1)
- anammox (1)
- anisotropy (1)
- annealing (1)
- aortic perfusion (1)
- aquaculture (1)
- architectural design (1)
- architectural layered representation (1)
- aromatic amines (1)
- artificial intelligence (1)
- artificial olfactory image (1)
- aseptic parameters (1)
- aspergillus (1)
- assistance system (1)
- asymptotic relative efficiency (1)
- atomic layer deposition (1)
- automated vehicles (1)
- automotive (1)
- autonomous navigation (1)
- availability (1)
- barium strontium titanate (1)
- batch reproducibility (1)
- batteries and fuel cells (1)
- bi-enzyme biosensor (1)
- biaxial tensile experiment (1)
- bicharacteristics (1)
- bio-based economy (1)
- bio-methane (1)
- bioavailability (1)
- bioburdens (1)
- biocompatible (1)
- biocompatible materials (1)
- biodegradabl (1)
- biodegradable electronic devices (1)
- biodegradable polymers (1)
- biofilms (1)
- biological dosimeter (1)
- biological hydrogen (1)
- biomechanics (1)
- biomethane (1)
- biopharmaceutical production process (1)
- biopotential electrodes (1)
- biosensor (1)
- body imaging at 7 T MRI (1)
- body imaging at UHF MRI (1)
- body limbs (1)
- bone density (1)
- bone structure (1)
- bootstrap (1)
- borefields (1)
- borehole disposal (1)
- brachytherapy (1)
- building energy modelling (1)
- building energy simulation (1)
- burst pressure (1)
- burst tests (1)
- business culture (1)
- calorimetric gas sensor (1)
- calorimetric gas sensor;hydrogen peroxide;wireless sensor system (1)
- cancellous bone (1)
- capacitive EIS sensor (1)
- capacitive electrolyte–insulator–semiconductor sensors (1)
- capacitive model (1)
- carbon dioxide removal (1)
- carbon electrodes (1)
- cardiac gating (1)
- cardiomyocyte biomechanics (1)
- cardiovascular MR imaging (1)
- catalytic metal (1)
- cell aerosolization (1)
- cell atomization (1)
- central symmetry test (1)
- cerebral small vessel disease (1)
- chance constrained programming (1)
- change (1)
- change management (1)
- chemical sensor (1)
- chip-based sensor setup (1)
- churches (1)
- civil engineering (1)
- climate change (1)
- climate neutrality (1)
- cobald chrome (1)
- coculture (1)
- cognitive impairment (1)
- coherent structures (1)
- colorization (1)
- community dwelling (1)
- complete block symmetry (1)
- compression behavior (1)
- computational fluid dynamics analysis (1)
- concentrating collector (1)
- conditional excess distribution (1)
- conditional expectation principle (1)
- confidence interval (1)
- connected automated vehicles (1)
- connective tissue (1)
- constitutive modeling (1)
- contactless conductivity sensor (1)
- control gate (1)
- corporate sustainability (1)
- correlation (1)
- coupled Néel–Brownian relaxation dynamics (1)
- covariance principle (1)
- critical (1)
- crop yield (1)
- crystallization (1)
- cyber-physical production systems (1)
- dam-break (1)
- dark fermentation (1)
- debris flow (1)
- deficit irrigation (1)
- dental bridges (1)
- dental trauma (1)
- deserts (1)
- design of technical systems (1)
- detection of charged macromolecules (1)
- detergent protease (1)
- dialysis (1)
- difficult airway (1)
- digital factory (1)
- digital twin (1)
- direct air capture (1)
- direct method (1)
- disposal facility (1)
- distorted element (1)
- distribution grid simulation (1)
- diversity management (1)
- double-lumen tube intubation (1)
- downstream processing design (1)
- drag force (1)
- drop jump (1)
- drug metabolising enzymes (1)
- drug–drug interactions (1)
- e-mobility (1)
- eVTOL development (1)
- eVTOL safety (1)
- earthquake engineering (1)
- ecological structure (1)
- economics (1)
- efficiency side-effects (1)
- eigensolvers (1)
- elastic scattering (1)
- elastic solids (1)
- elastomers (1)
- electrical conductivity of liquids (1)
- electrocardiogram (1)
- electrolyte-insulator semiconductor sensor (EIS) (1)
- electrolyte-insulator-semiconductor capacitors (1)
- electromyography (1)
- electronic nose (1)
- electrospinning (1)
- encapsulation materials (1)
- endoluminal (1)
- endospores (1)
- energy (1)
- energy absorption (1)
- energy dissipation (1)
- energy transfer (1)
- engineering (1)
- ensiling (1)
- entrepreneurship education (1)
- environmental correlation (1)
- enzymatic (bio)degradation (1)
- enzymatic biosensor (1)
- enzyme cascade (1)
- enzyme kinetics (1)
- enzyme-logic gate (1)
- epithelization (1)
- equivalent circuit (1)
- equivalent stiffness (1)
- event-based simulation (1)
- exchangeability test (1)
- exopolysaccharides (1)
- experiment quality (1)
- experimental evaluation (1)
- extracorporeal membrane oxygenation (1)
- eye movement modelling examples (1)
- fatigue analyses (1)
- fatty acid (1)
- fermentation (1)
- fibers (1)
- fibroin (1)
- field-effect structure (1)
- filamentous fungi (1)
- flaw (1)
- fluorescent protein carrier (1)
- force generation (1)
- forecast (1)
- forehead EEG (1)
- fortschreitende plastische Deformation (1)
- frequency mixing (1)
- fuel cell vehicle (1)
- functional data (1)
- ga-doping (1)
- gait (1)
- gamification (1)
- garnet solid electrolyte (1)
- gas sensor (1)
- gaseous hydrogen peroxide (1)
- genetic algorithm (1)
- genome engineering (1)
- geological disposal (1)
- geothermal (1)
- global optimization (1)
- glucose (1)
- glucose oxidase (GOx) (1)
- glycine (1)
- goodness-of-fit test (1)
- granular silo (1)
- graphene oxide (1)
- greenhouse cultivation (1)
- grey energy (1)
- halotolerant protease (1)
- harmonic radar tags (1)
- healthy aging (1)
- heat demand (1)
- heat transfer coefficient (1)
- heating system (1)
- heavy metals (1)
- hiPS cardiomyocytes (1)
- high field MR imaging (1)
- high-alkaline subtilisin (1)
- high-intensity exercise (1)
- high-k material (1)
- horseradish peroxidase (HRP) (1)
- huge dimensional data (1)
- human dermal fibroblasts (1)
- human metabolites (1)
- humic acid (1)
- hybrid model validation (1)
- hydraulic modelling (1)
- hydrogel (1)
- hydrogels (1)
- hydrolysis (1)
- hydroxylation (1)
- hyper-gravity (1)
- hyperelastic (1)
- hypo-gravity (1)
- hypoplasticity (1)
- ignition (1)
- impulsive effects (1)
- in-ear EEG (1)
- in-situ monitoring (1)
- incontinence (1)
- independence test (1)
- industrial agents (1)
- industry 4.0 (1)
- infill strategy (1)
- innovation management (1)
- integrated transmit coil arrays (1)
- intelligent control (1)
- intelligent energy management (1)
- intraclass correlation coefficient (1)
- irradiation (1)
- jevons paradox (1)
- key performance indicators (1)
- konvexe Optimierung (1)
- lable-free detection (1)
- lactic acid (1)
- lactobacillus (1)
- large language models (1)
- large-scale inspection (1)
- layer-by-layer technique (1)
- legal obligations (1)
- light-addressable electrode (1)
- light-addressing technologies (1)
- lignite (1)
- limit load (1)
- lipopolysaccharide (1)
- lipopolysaccharides (1)
- liquid-storage tank (1)
- liquid-structure interaction (1)
- literature (1)
- lizards (1)
- load limit (1)
- low-rank coal (1)
- machine learning (1)
- macro-element (1)
- magnetic actuation (1)
- magnetic beads (1)
- magnetic biosensing (1)
- magnetic relaxation (1)
- magnetic resonance imaging (1)
- magnetic sandwich immunoassay (1)
- magnetic sensing (1)
- magnetic sensors (1)
- magnetic separation (1)
- magnetic tweezers (1)
- magnetophoretic velocity (1)
- mainstream deammonification (1)
- management (1)
- manufacturing (1)
- manufacturing data model (1)
- marketing (1)
- mathematical optimization (1)
- mechanical buffer (1)
- mechanical properties (1)
- metagenomics (1)
- metal-oxide-semiconductor structure (1)
- metathesis (1)
- method of fundamental solutions (1)
- microbial diversity (1)
- micromagnetic simulation (1)
- micronutrients (1)
- microplasma (1)
- microwave (MW) plasma (1)
- microwave measurements (1)
- mix flexibility (1)
- mixed-integer linear programming (1)
- mobile manipulation (1)
- model performance (1)
- modelled population estimates (1)
- motivation (1)
- multi-agent systems (1)
- multi-functional material (1)
- multi-sensing platform (1)
- multianalyte detection (1)
- multinomial distribution (1)
- multiparametric immunoassays (1)
- multiplex detection (1)
- multivariate normal distribution (1)
- muscle mechanics (1)
- nanobelts (1)
- nanomaterials (1)
- nanoparticle coverage (1)
- nanostructured carbonized plant parts (1)
- nanostrukturierte carbonisierte Pflanzenteile (1)
- naphtols (1)
- negative emissions (1)
- neutrons (1)
- next generation network (1)
- nitrogen elimination (1)
- non-simplex S-FEM elements (1)
- nonlinear VNA measurements (1)
- nonlinear radar (1)
- nonlinear transient analyses (1)
- novel photoexcitation method (1)
- nuclear waste (1)
- numerical model (1)
- on-chip integrated addressable EISCAP sensors (1)
- onion (1)
- optical fibers (1)
- optical sensor setup (1)
- optical spore trapping (1)
- optical trapping (1)
- optimization (1)
- optimization system (1)
- organic waste (1)
- organosilanes (1)
- overload (1)
- oxidative stable protease (1)
- pH sensors (1)
- parabolic flight (1)
- penicillin (1)
- perennial ryegrass (1)
- performance analysis (1)
- performance testing (1)
- performativity in personal knowledge (1)
- personal way of designing (1)
- phenols (1)
- phonocardiogram (1)
- photoelectrochemistry (1)
- physical model (1)
- physiology (1)
- pipes (1)
- plant molecular farming (1)
- plant scanner (1)
- plant stress (1)
- plant virus detection (1)
- plasma jet (1)
- plug-based microfluidic device (1)
- point-focussing system (1)
- poly(d, l-lactic acid) (1)
- polyamide (1)
- polyaniline (1)
- polyaspartic acid (1)
- polyester (1)
- polyetheretherketone (1)
- polyetheretherketone (PEEK) (1)
- polystyrene sulfonate (1)
- population and housing census (1)
- porous materials (1)
- portfolio risk (1)
- power-to-gas (1)
- pretreatment (1)
- prevention (1)
- product bundling (1)
- product liability (1)
- production planning and control (1)
- programming (1)
- prostate cancer (1)
- prostatectomy (1)
- proton therapy (1)
- protons (1)
- psychosocial (1)
- pullulan (1)
- quality of life (1)
- random effects (1)
- random effects meta-regression model (1)
- ratchetting (1)
- raytracing (1)
- recombinant expression (1)
- rehabilitation (1)
- relative dosimetry (1)
- reliability analysis (1)
- reliability of structures (1)
- research association (1)
- resilience (1)
- resource abundance (1)
- retention time (1)
- retinal microvasculature (1)
- retinal vessels (1)
- review (1)
- rollout (1)
- rubber (1)
- running (1)
- sEMG (1)
- sarcomere operating length (1)
- scan strategy (1)
- scanned light pulse technique (1)
- seismic response (1)
- semantic role labeling (1)
- separable Hilbert space (1)
- series elastic element behavior (1)
- service-oriented architectures (1)
- shakedown analyses (1)
- shotgun sequencing (1)
- shoulder (1)
- silanization (1)
- simulation (1)
- sizing (1)
- slum classification (1)
- smart-charging (1)
- smooth muscle contraction (1)
- socio-economic welfare (1)
- soil amendment (1)
- soil health (1)
- soil remediation (1)
- solar process heat (1)
- solid-state battery (1)
- spatial resolution (1)
- speaker attribution (1)
- spore kill rate (1)
- sprint start (1)
- standard error of measurement (1)
- sterilisation (1)
- sterility (1)
- sterility tests (1)
- sterilization (1)
- sterilization conditions (1)
- sterilization efficacy (1)
- sterilization methods (1)
- stiffness (1)
- stochastic optimization (1)
- stochastic programming (1)
- strain energy function (1)
- stretch reflex (1)
- stretch-shortening cycle (1)
- structure-soil-structure interaction (1)
- superabsorbent polymers (1)
- superparamagnetic bead (1)
- superparamagnetic nanoparticles (1)
- supramolecular structures (1)
- surface functionalization (1)
- surface modification (1)
- surface-orthogonal path planning (1)
- survival (1)
- swelling properties (1)
- swimming (1)
- system optimization (1)
- system synthesis (1)
- systematic (1)
- technical operations research (1)
- technology planning (1)
- telecommunication (1)
- temperature (1)
- tendon rupture (1)
- tension–torsion loading (1)
- test-retest reliability (1)
- theory and modeling (1)
- thermal dose (1)
- thermal ratcheting (1)
- thermometry (1)
- tilted constant illumination (1)
- tissue temperature (1)
- titanium dioxide photoanode (1)
- transmit antenna arrays (1)
- transponder (1)
- transporters (1)
- tri-lineage differentiation (1)
- truss (1)
- turnip vein clearing virus (TVCV) (1)
- twin-fluid atomizer (1)
- ultrasonography (1)
- ultrathin gate insulators (1)
- uniformly most powerful invariant test (1)
- unloading (1)
- urease (1)
- validation methods (1)
- vault (1)
- vessels (1)
- video learning (1)
- videolaryngoscopy (1)
- virgin passive (1)
- virtual clean room (1)
- viscoelasticity (1)
- visualization (1)
- volume flexibility (1)
- walking (1)
- walking gait (1)
- wastewater (1)
- water economy (1)
- water supply design (1)
- wind turbine production (1)
- wound healing (1)
- yield (1)
- yield stress (1)
- α-aminoacylase (1)
- ε-lysine acylase (1)
N-Acyl-amino acids can act as mild biobased surfactants, which are used, e.g., in baby shampoos. However, their chemical synthesis needs acyl chlorides and does not meet sustainability criteria. Thus, the identification of biocatalysts to develop greener synthesis routes is desirable. We describe a novel aminoacylase from Paraburkholderia monticola DSM 100849 (PmAcy) which was identified, cloned, and evaluated for its N-acyl-amino acid synthesis potential. Soluble protein was obtained by expression in lactose autoinduction medium and co-expression of molecular chaperones GroEL/S. Strep-tag affinity purification enriched the enzyme 16-fold and yielded 15 mg pure enzyme from 100 mL of culture. Biochemical characterization revealed that PmAcy possesses beneficial traits for industrial application like high temperature and pH-stability. A heat activation of PmAcy was observed upon incubation at temperatures up to 80 °C. Hydrolytic activity of PmAcy was detected with several N-acyl-amino acids as substrates and exhibited the highest conversion rate of 773 U/mg with N-lauroyl-L-alanine at 75 °C. The enzyme preferred long-chain acyl-amino-acids and displayed hardly any activity with acetyl-amino acids. PmAcy was also capable of N-acyl-amino acid synthesis with good conversion rates. The best synthesis results were obtained with the cationic L-amino acids L-arginine and L-lysine as well as with L-leucine and L-phenylalanine. Exemplarily, L-phenylalanine was acylated with fatty acids of chain lengths from C8 to C18 with conversion rates of up to 75%. N-lauroyl-L-phenylalanine was purified by precipitation, and the structure of the reaction product was verified by LC–MS and NMR.
During rapid deceleration of the body, tendons buffer part of the elongation of the muscle-tendon unit (MTU), enabling safe energy dissipation via eccentric muscle contraction. Yet, the influence of changes in tendon stiffness within the physiological range upon these lengthening contractions is unknown. This study aimed to examine the effect of training-induced stiffening of the Achilles tendon on triceps surae muscle-tendon behavior during a landing task. Twenty-one male subjects were assigned to either a 10-week resistance-training program consisting of single-leg isometric plantarflexion (n = 11) or to a non-training control group (n = 10). Before and after the training period, plantarflexion force, peak Achilles tendon strain and stiffness were measured during isometric contractions, using a combination of dynamometry, ultrasound and kinematics data. Additionally, testing included a step-landing task, during which joint mechanics and lengths of gastrocnemius and soleus fascicles, Achilles tendon, and MTU were determined using synchronized ultrasound, kinematics and kinetics data collection. After training, plantarflexion strength and Achilles tendon stiffness increased (15 and 18%, respectively), and tendon strain during landing remained similar. Likewise, lengthening and negative work produced by the gastrocnemius MTU did not change detectably. However, in the training group, gastrocnemius fascicle length was offset (8%) to a longer length at touch down and, surprisingly, fascicle lengthening and velocity were reduced by 27 and 21%, respectively. These changes were not observed for soleus fascicles when accounting for variation in task execution between tests. These results indicate that a training-induced increase in tendon stiffness does not noticeably affect the buffering action of the tendon when the MTU is rapidly stretched. Reductions in gastrocnemius fascicle lengthening and lengthening velocity during landing occurred independently from tendon strain. Future studies are required to provide insight into the mechanisms underpinning these observations and their influence on energy dissipation.
This study describes the development of a new combined polysaccharide-matrix-based technology for the immobilization of Lactobacillus rhamnosus GG (LGG) bacteria in biofilm form. The new composition allows for delivering the bacteria to the digestive tract in a manner that improves their robustness compared with planktonic cells and released biofilm cells. Granules consisting of a polysaccharide matrix with probiotic biofilms (PMPB) with high cell density (>9 log CFU/g) were obtained by immobilization in the optimized nutrient medium. Successful probiotic loading was confirmed by fluorescence microscopy and scanning electron microscopy. The developed prebiotic polysaccharide matrix significantly enhanced LGG viability under acidic (pH 2.0) and bile salt (0.3%) stress conditions. Enzymatic extract of feces, mimicking colon fluid in terms of cellulase activity, was used to evaluate the intestinal release of probiotics. PMPB granules showed the ability to gradually release a large number of viable LGG cells in the model colon fluid. In vivo, the oral administration of PMPB granules in rats resulted in the successful release of probiotics in the colon environment. The biofilm-forming incubation method of immobilization on a complex polysaccharide matrix tested in this study has shown high efficacy and promising potential for the development of innovative biotechnologies.
Comparison of different training algorithms for the leg extension training with an industrial robot
(2018)
In the past, different training scenarios have been developed and implemented on robotic research platforms, but no systematic analysis and comparison have been done so far. This paper deals with the comparison of an isokinematic (motion with constant velocity) and an isotonic (motion against constant weight) training algorithm. Both algorithms are designed for a robotic research platform consisting of a 3D force plate and a high payload industrial robot, which allows leg extension training with arbitrary six-dimensional motion trajectories. In the isokinematic as well as the isotonic training algorithm, individual paths are defined i n C artesian s pace by sufficient s upport p oses. I n t he i sotonic t raining s cenario, the trajectory is adapted to the measured force as the robot should only move along the trajectory as long as the force applied by the user exceeds a minimum threshold. In the isotonic training scenario however, the robot’s acceleration is a function of the force applied by the user. To validate these findings, a simulative experiment with a simple linear trajectory is performed. For this purpose, the same force path is applied in both training scenarios. The results illustrate that the algorithms differ in the force dependent trajectory adaption.
Training-induced increase in Achilles tendon stiffness affects tendon strain pattern during running
(2019)
Background
During the stance phase of running, the elasticity of the Achilles tendon enables the utilisation of elastic energy and allows beneficial contractile conditions for the triceps surae muscles. However, the effect of changes in tendon mechanical properties induced by chronic loading is still poorly understood. We tested the hypothesis that a training-induced increase in Achilles tendon stiffness would result in reduced tendon strain during the stance phase of running, which would reduce fascicle strains in the triceps surae muscles, particularly in the mono-articular soleus.
Methods
Eleven subjects were assigned to a training group performing isometric singleleg plantarflexion contractions three times per week for ten weeks, and another ten subjects formed a control group. Before and after the training period, Achilles tendon stiffness was estimated, and muscle-tendon mechanics were assessed during running at preferred speed using ultrasonography, kinematics and kinetics.
Results
Achilles tendon stiffness increased by 18% (P <0:01) in the training group, but the associated reduction in strain seen during isometric contractions was not statistically significant. Tendon elongation during the stance phase of running was similar after training, but tendon recoil was reduced by 30% (P <0:01), while estimated tendon force remained unchanged. Neither gastrocnemius medialis nor soleus fascicle shortening during stance was affected by training.
Discussion
These results show that a training-induced increase in Achilles tendon
stiffness altered tendon behaviour during running. Despite training-induced changes in tendon mechanical properties and recoil behaviour, the data suggest that fascicle shortening patterns were preserved for the running speed that we examined. The asymmetrical changes in tendon strain patterns supports the notion that simple inseries models do not fully explain the mechanical output of the muscle-tendon unit during a complex task like running.
By developing innovative solutions to social and environmental problems, sustainable ventures carry greatpotential. Entrepreneurship which focuses especially on new venture creation can be developed through education anduniversities, in particular, are called upon to provide an impetus for social change. But social innovations are associatedwith certain hurdles, which are related to the multi-dimensionality, i.e. the tension between creating social,environmental and economic value and dealing with a multiplicity of stakeholders. The already complex field ofentrepreneurship education has to face these challenges. This paper, therefore, aims to identify starting points for theintegration of sustainability into entrepreneurship education. To pursue this goal experiences from three differentproject initiatives between the partner universities: Lapland University of Applied Sciences, FH Aachen University ofApplied Sciences and Turiba University are reflected and findings are systematically condensed into recommendationsfor education on sustainable entrepreneurship.
Neuromuscular strength training of the leg extensor muscles plays an important role in the rehabilitation and prevention of age and wealth related diseases. In this paper, we focus on the design and implementation of a Cartesian admittance control scheme for isotonic training, i.e. leg extension and flexion against a predefined weight. For preliminary testing and validation of the designed algorithm an experimental research and development platform consisting of an
industrial robot and a force plate mounted at its end-effector has been used. Linear, diagonal and arbitrary two-dimensional motion trajectories with different weights for the leg extension and flexion part are applied. The proposed algorithm is easily adaptable to trajectories consisting of arbitrary six-dimensional poses and allows the implementation of individualized trajectories.
To prevent the reduction of muscle mass and loss of strength coming along with the human aging process, regular training with e.g. a leg press is suitable. However, the risk of training-induced injuries requires the continuous monitoring and controlling of the forces applied to the musculoskeletal system as well as the velocity along the motion trajectory and the range of motion. In this paper, an adaptive norm-optimal iterative learning control algorithm to minimize the knee joint loadings during the leg extension training with an industrial robot is proposed. The response of the algorithm is tested in simulation for patients with varus, normal and valgus alignment of the knee and compared to the results of a higher-order iterative learning control algorithm, a robust iterative learning control and a recently proposed conventional norm-optimal iterative learning control algorithm. Although significant improvements in performance are made compared to the conventional norm-optimal iterative learning control algorithm with a small learning factor, for the developed approach as well as the robust iterative learning control algorithm small steady state errors occur.
New European Union (EU) regulations for UAS operations require an operational risk analysis, which includes an estimation of the potential danger of the UAS crashing. A key parameter for the potential ground risk is the kinetic impact energy of the UAS. The kinetic energy depends on the impact velocity of the UAS and, therefore, on the aerodynamic drag and the weight during free fall. Hence, estimating the impact energy of a UAS requires an accurate drag estimation of the UAS in that state. The paper at hand presents the aerodynamic drag estimation of small-scale multirotor UAS. Multirotor UAS of various sizes and configurations were analysed with a fully unsteady Reynolds-averaged Navier–Stokes approach. These simulations included different velocities and various fuselage pitch angles of the UAS. The results were compared against force measurements performed in a subsonic wind tunnel and provided good consistency. Furthermore, the influence of the UAS`s fuselage pitch angle as well as the influence of fixed and free spinning propellers on the aerodynamic drag was analysed. Free spinning propellers may increase the drag by up to 110%, depending on the fuselage pitch angle. Increasing the fuselage pitch angle of the UAS lowers the drag by 40% up to 85%, depending on the UAS. The data presented in this paper allow for increased accuracy of ground risk assessments.
Achilles tendon rupture (ATR) patients have persistent functional deficits in the triceps surae muscle–tendon unit (MTU). The complex remodeling of the MTU accompanying these deficits remains poorly understood. The purpose of the present study was to associate in vivo and in silico data to investigate the relations between changes inMTU properties and strength deficits inATR patients. Methods: Elevenmale subjects who had undergone surgical repair of complete unilateral ATR were examined 4.6 ± 2.0 (mean ± SD) yr after rupture. Gastrocnemius medialis (GM) tendon stiffness, morphology, and muscle architecture were determined using ultrasonography. The force–length relation of the plantar flexor muscles was assessed at five ankle joint angles. In addition, simulations (OpenSim) of the GM MTU force–length properties were performed with various iterations of MTU properties found between the unaffected and the affected side. Results: The affected side of the patients displayed a longer, larger, and stiffer GM tendon (13% ± 10%, 105% ± 28%, and 54% ± 24%, respectively) compared with the unaffected side. The GM muscle fascicles of the affected side were shorter (32% ± 12%) and with greater pennation angles (31% ± 26%). A mean deficit in plantarflexion moment of 31% ± 10% was measured. Simulations indicate that pairing an intact muscle with a longer tendon shifts the optimal angular range of peak force outside physiological angular ranges, whereas the shorter muscle fascicles and tendon stiffening seen in the affected side decrease this shift, albeit incompletely. Conclusions: These results suggest that the substantial changes in MTU properties found in ATR patients may partly result from compensatory remodeling, although this process appears insufficient to fully restore muscle function.