Ingenieurwissenschaften und zugeordnete Tätigkeiten
Filtern
Erscheinungsjahr
- 2017 (244) (entfernen)
Dokumenttyp
- Zeitschriftenartikel (244) (entfernen)
Sprache
- Englisch (218)
- Deutsch (23)
- Russisch (2)
- Mehrsprachig (1)
Schlagworte
- Nanoparticle (11)
- Fluorescence (10)
- Mechanochemistry (9)
- Quantum yield (8)
- Additive manufacturing (7)
- KorroPad (7)
- SAXS (7)
- Small-angle X-ray scattering (7)
- Korrosionsschnelltest (6)
- NIR (6)
- Nichtrostender Stahl (6)
- Passivschicht (6)
- Femtosecond laser (5)
- IR (5)
- Lifetime (5)
- Quantification (5)
- Residual stress (5)
- Computed tomography (4)
- Degradation (4)
- Fatigue strength (4)
- Fracture mechanics (4)
- In situ (4)
- Lanthanide (4)
- Laser-induced periodic surface structures (LIPSS) (4)
- Multiple crack propagation (4)
- Residual stresses (4)
- Upconversion (4)
- Alkali-silica reaction (3)
- Cast iron (3)
- Corrosion (3)
- Electron backscatter diffraction (3)
- Ellipsometry (3)
- Fatigue (3)
- Heat treatment (3)
- Initial crack size (3)
- Integrating sphere spectroscopy (3)
- Laser ablation (3)
- MAG welding (3)
- MALDI (3)
- MALDI-TOF MS (3)
- Method (3)
- Neutron diffraction (3)
- Phase transformation (3)
- Polylactides (3)
- Polymer (3)
- Raman spectroscopy (3)
- Ring-opening polymerization (3)
- Sensor (3)
- Short crack propagation (3)
- Silver nanoparticles (3)
- Steel (3)
- Welding (3)
- X-ray computed tomography (3)
- XRD (3)
- Absolute fluorometry (2)
- Aktive Thermografie (2)
- Biodiesel (2)
- Brightness (2)
- Broadband Dielectric Spectroscopy (2)
- Broadband dielectric spectroscopy (2)
- CCS (2)
- Carbon fiber reinforced polymer (2)
- Carbon nanotubes (2)
- Cell adhesion (2)
- Cladding parameter (2)
- Composites (2)
- Concrete (2)
- Crystallization (2)
- DNA origami (2)
- Design of experiments (2)
- Doped tin oxide (2)
- Dye (2)
- EBSD (2)
- Environment (2)
- Environmental stress cracking (ESC) (2)
- Epoxy resin (2)
- Femtosecond laser ablation (2)
- Gas sensing (2)
- Gefahrgutverpackung (2)
- Grain growth (2)
- High-strength steel (2)
- High-strength steels (2)
- ISO 6892-1 (2)
- Iron oxide (2)
- LIBS (2)
- Laser cladding (2)
- Laser metal deposition (2)
- Laser-induced periodic surface structures (2)
- Mechanical properties (2)
- Metal phosphonate (2)
- Microscopy (2)
- Microstructure (2)
- NMR (2)
- Nanocomposite (2)
- Nanocomposites (2)
- Nanocrystal (2)
- Nanoparticles (2)
- Nanostructures (2)
- Non-destructive testing (2)
- Oxidation (2)
- Pacemaker (2)
- Pipeline (2)
- Polyethylen (2)
- Polylactide (2)
- Polymorphism (2)
- Porosity (2)
- Principal component analysis (2)
- Process parameters (2)
- Quantum dot (2)
- Rammed earth (2)
- Reliability (2)
- Restraint (2)
- Semiconductor (2)
- Slow crack growth (SCG) (2)
- Spectroscopic ellipsometry (2)
- Surface chemistry (2)
- Thermography (2)
- Thin Films (2)
- Thin films (2)
- Titanium (2)
- Titanium alloy (2)
- ToF-SIMS (2)
- Transesterification (2)
- Wear (2)
- Welding simulation (2)
- Weldments (2)
- Wärmebehandlung (2)
- X-ray imaging (2)
- X-ray refraction (2)
- Zerstörungsfreie Prüfung (2)
- (Mn,Ga)As crystallites (1)
- 3D printing (1)
- 4'-hydroxyacetophenone (1)
- AC-nanochip calorimetry (1)
- AFM cantilever vibration (1)
- AFM intermittent contact (1)
- AFM tip shape (1)
- Aberfan flowslide (1)
- Abplatzen (1)
- Absolute flourescence (1)
- Absolute flourometry (1)
- Absolute fluoreometry (1)
- Accelerated time integration (1)
- Accuracy (1)
- Acoustic emissions analysis (1)
- Active and passive thermography (1)
- Active thermography (1)
- Additive Fertigung (1)
- Additive manufacturing, 3D printing (1)
- Adjustment calculation (1)
- Adsorption of phosphate (1)
- Ageing (1)
- Al-Cu-Li-Legierung (1)
- Alkali ingress (1)
- Aluminium (1)
- Aluminum alloy 2024-T3 (1)
- Amphiphilic dumbbells (1)
- Anodic oxidation (1)
- Antenna effect (1)
- Antifouling (1)
- Antiphase boundary (1)
- Aqdditive manufacturing (1)
- Aquifer (1)
- Arbeitsschutz (1)
- Archaeology (1)
- Artificial cells (1)
- Artificial turf (1)
- Artificial weathering (1)
- Assay (1)
- Asymmetric supercapacitor (1)
- Athletic tracks (1)
- Atomic force microscopy (1)
- Auger electron spectroscopy (1)
- Ausscheidungen (1)
- Axle (1)
- Azobenzene (1)
- BLE (1)
- BODIPY (1)
- Bacterial adhesion (1)
- Bacteroidetes (1)
- Ball milling (1)
- Behandlungsparameter (1)
- Berstprüfung (1)
- Biegefestigkeit (1)
- Biegesteifigkeit (1)
- Bio lubricants (1)
- Biocides (1)
- Bioconjugate (1)
- Biofilm (1)
- Biofilms (1)
- Biofuel cells (1)
- Biofuels (1)
- Biomass (1)
- Biomedical engineering (1)
- Biomineralization (1)
- Blockcopolymer (1)
- Bluetooth Low Energy (1)
- Bone tissue engineering (1)
- Bragg-edge imaging (1)
- Brake pad materials (1)
- Brand (1)
- Brass (1)
- Bremsleitung (1)
- Brithtness (1)
- Building materials (1)
- Building-blocks (1)
- CFK (1)
- CFRP (1)
- CO2-storage (1)
- Calcium alkali orthophosphate (1)
- Calcium phosphate (1)
- Calibration (1)
- Carbamazepine (1)
- Carbon fibre reinforced composite (1)
- Carbon fibres nanotubes interface (1)
- Carbon nanodots (1)
- Carbon storage (1)
- Carbon-based nanomaterials (1)
- Carbon-fluorine bonds (1)
- Casting skin (1)
- Catalysis (1)
- Catalysts (1)
- Cationization (1)
- CdSe (1)
- Cellular solids (1)
- Ceramics (1)
- Cermet (1)
- Chemical analysis (1)
- Chemicals classification (1)
- Chemometrics (1)
- Chlorbutylkautschuk (1)
- Circular dichroism (1)
- Climate simulation concrete prism test (1)
- Co-planar translational laminography (1)
- Cocrystal (1)
- Cocrystals (1)
- Colour center (1)
- Compatibility (1)
- Compatible solute (1)
- Complex formation (1)
- Complex structures (1)
- Component design (1)
- Compression (1)
- Compressive strength (1)
- Computational model for unsaturated flow (1)
- Computed thomography (1)
- Concrete pavement (1)
- Conductive carbon tape (1)
- Conductivity (1)
- Conductometry (1)
- Contamination (1)
- Continuum damage mechanics (1)
- Controlled radical polymerization (1)
- Coordination polymers (1)
- Copper (1)
- Correlative tomography (1)
- Corrosion fatigue (1)
- Corrosion resistance (1)
- Cr complex (1)
- Crack (1)
- Crack criterion (1)
- Crack detection (1)
- Crack driving force (1)
- Cracks (1)
- Creep (1)
- Critical micelle concentration (CMC) (1)
- Crystal phase determination (1)
- Crystal structure (1)
- Crystallography (1)
- Curing kinetics (1)
- Cuticle (1)
- Cyclic loading (1)
- Cyclic softening (1)
- Cyclopolymerization (1)
- Cysteine (1)
- C–C coupling (1)
- DNA (1)
- DSC (1)
- DSS (1)
- DSSC (1)
- Darkfield microscopy (1)
- Data correction (1)
- Data fusion (1)
- Decay time (1)
- Delamination (1)
- Dendrimersomes (1)
- Dendritic amphiphile (1)
- Dense alumina (1)
- Density functional theory (DFT) (1)
- Dentistry (1)
- Desiccation resistance (1)
- Dezincification (1)
- Dielectric materials (1)
- Dielectrics (1)
- Different electrochemical conditions (1)
- Different load cases (1)
- Differential scanning calorimetry (DSC) (1)
- Digital radiography (1)
- Dilatometry (1)
- Dislocations (1)
- Dispersity (1)
- Dissimilar welding (1)
- Distance transform (1)
- Doubly charged ions (1)
- Drehen (1)
- Druckkraft (1)
- Dual emission (1)
- Dual-environment (1)
- Ductile cast iron (1)
- Duplex stainless steel (1)
- Duplex stainless steels (1)
- Dynamic fracture mechanics (1)
- EM-clustering (1)
- EN 16807-2016:12 (1)
- EPR (1)
- EPS (1)
- ESI-TOF-MS (1)
- EXAFS (1)
- Earth block masonry (EBM) (1)
- Economic wide technology replacement (1)
- Ectoine (1)
- Effective irradiation dose 0.2-16 [Gy] (1)
- Elastomere (1)
- Electroceramics (1)
- Electrochemical behavior (1)
- Electromagnetic scattering (1)
- Electron back-scattered diffraction (1)
- Electron irradiation 30 [kV] (1)
- Electronic structure (1)
- Electrospray ionization polymers (1)
- Emission standards (1)
- Emission test chamber (1)
- Emissivity (1)
- Endurance limit (1)
- Energy efficiency (1)
- Energy input (1)
- Energy transfer (1)
- Entsorgung gefährlicher Stoffe (1)
- Epoxy (1)
- Equilibration (1)
- Etal-complexes (1)
- Ettringit (1)
- European Materials Research Society (E-MRS) (1)
- Excitation energy dependence (1)
- Excitation power density dependence (1)
- Excitation spectra (1)
- Exciton (1)
- External alkalis (1)
- External load test (1)
- FEA (1)
- FNCT (1)
- FRET (1)
- Fahrbahnbeton (1)
- Faserverbundwerkstoffe (CFK, GFK) (1)
- Fatigue assessment (1)
- Fatigue damage (1)
- Fatigue life time (1)
- Fatigue loading (1)
- Femtosecond laser processing (1)
- Ferritic/martensitic steel (1)
- Festigkeit (1)
- Festigkeitssteigerung (1)
- Feuchtetransport (1)
- Fiber-reinforced concrete (1)
- Fibre reinforced composites (1)
- Film (1)
- Finite element method (1)
- Finite element simulation (1)
- Fire (1)
- Flame retardants (1)
- Flammability (1)
- Flowability (1)
- Fluid transport (1)
- Fluorescence probe (1)
- Focused ion beam tomography (1)
- Force-distance curves (1)
- Fourier series (1)
- Fracture energy (1)
- Friction (1)
- Friction stir welding (1)
- Full notch creep test (FNCT) (1)
- Full-notch creep test (FNCT) (1)
- Fungi (1)
- GMR (1)
- Gas permeation (1)
- Gas separation (1)
- Gas separation membrane (1)
- Gas tungsten arc welding (1)
- Gel electrophoresis (1)
- Gel-type electrolytes (1)
- Gelartige Elektrolyte (1)
- Geothermal environment (1)
- Germylium ions (1)
- Glass-ceramic (1)
- Globally Harmonized System of Classification and Labelling of Chemicals (1)
- Glow discharge processes (1)
- Gold nanoparticles (1)
- Grain pest beetles (1)
- Graphen (1)
- Graphene (1)
- Graphene oxide (1)
- Graphit (1)
- Grating interferometry (1)
- Greenhouse gas mitigation (1)
- Gurson model (1)
- HPC (1)
- HSC (1)
- HSQ (1)
- Halbleiterphysik (1)
- Haltezeit (1)
- Hard object collisions (1)
- Hazardous chemicals (1)
- Heat flux estimation (1)
- Heat-affected zone (1)
- Heating (1)
- Heterogeneity (1)
- High Cycle Fatigue (HCF) (1)
- High ductility (1)
- High energy synchrotron diffraction (1)
- High power welding (1)
- High strength steel (1)
- High-density polyethylene (PE-HD) (1)
- Historical earthen building (1)
- Ho(III) (1)
- Hochleistungsbeton (1)
- Hot cracking (1)
- Hybrid laser arc welding (1)
- Hybrid laser-arc weld (1)
- Hybrid nanoparticles (1)
- Hydrodefluorination (1)
- Hydrogen embrittlement (1)
- Hydrogen trapping (1)
- Hydrogen-assisted cracking (1)
- Hyperbranched polymers (1)
- I-shape sections (1)
- Image-based analysis (1)
- Imaging (1)
- Impact behaviour (1)
- In situ PXRD (1)
- In situ XRD (1)
- In situ bending tests (1)
- In situ near-infrared (NIR) spectroscopy (1)
- Innovationsrecht (1)
- Integrating sphere (1)
- Intermetallic compound (1)
- Interpass temperature (1)
- Interphase (1)
- Inverse heat transfer problem (1)
- Iron oxide nanoparticles (1)
- Iron oxides (1)
- Iron-oxo oligomers (1)
- Irradiation (1)
- Irreversible polycondensation (1)
- Janus dendrimers (1)
- Keramik (1)
- Kikuchi patterns (1)
- Knoevenagel condensation (1)
- Kohlenstofffaserverstärkter Kunststoff (1)
- Korrosion (1)
- Krypton (1)
- Kupferlegierungen (1)
- LED phosphors (1)
- LPSO Phase (1)
- LTT (1)
- Lactides (1)
- Landslide propagation modelling (1)
- Laser Processing (1)
- Laser beam Welding (1)
- Laser heated pedestal growth (1)
- Laser implantation (1)
- Laser-induced breakdown spectroscopy (1)
- Laser-induced periodic surface structures, LIPSS (1)
- Laser-induced redox reactions (1)
- Laser-material interactions (1)
- Laserschweißen (1)
- Layer-wise slurry deposition (1)
- Leaching (1)
- Leakage (1)
- Lean duplex stainless steel (1)
- Lewis-acids (1)
- Life cycle assessment (LCA) (1)
- Life time prediction (1)
- Life-cycle assessment (1)
- Liftetime (1)
- Ligand (1)
- Light-harvesting (1)
- Limiting oxygen concentration (1)
- Liquid chromatography at critical conditions (1)
- Liquid petroleum products (1)
- Liquid phase sintering (1)
- Lizard (1)
- Load partition (1)
- Local critical strain (1)
- Lochkorrosion (1)
- Long-Term Monitoring (1)
- Longitudinal weld (1)
- Low blow (1)
- Low temperature (1)
- Low transformation temperature (1)
- Lubricant films (1)
- MALDI TOF MS (1)
- MEMS (1)
- MOF (1)
- Magnetic nanoparticles (1)
- Magnetic properties (1)
- Magnetic stray field (1)
- Mandible (1)
- Martensitic stainless steels (1)
- Mass spectrometry (1)
- Material (1)
- Materials characterization (1)
- Mechanism (1)
- Medical imaging (1)
- Melanised microcolonial fungi (MCF) (1)
- Mesoporous films (1)
- Metal matrix composite (1)
- Metastable (1)
- Method evaluation (1)
- Methodology (1)
- Methods (1)
- Mg-Y-Zn Alloy (1)
- Micelle (1)
- Micro-CT (1)
- Microalloyed steels (1)
- Microbial adhesion tests (1)
- Microcracking (1)
- Microcracks (1)
- Micromechanics model (1)
- Microstructure and texture (1)
- Mill scale (1)
- Milling (1)
- Model friction tests (1)
- Modeling (1)
- Modified spray arc (1)
- Moisture Measurement (1)
- Moisture clog (1)
- Moisture transport (1)
- Molecular mobility (1)
- Monitoring of damage (1)
- Morphology (1)
- Mouthguard (1)
- Multi-regional inputeoutput data (1)
- Multi-sample analysis (1)
- Multidimensional Spectroscopy (1)
- Müller Polarimetry (1)
- NMR spectroscopy (1)
- Nano (1)
- Nanoclays (1)
- Nanocluster (1)
- Nanocorrosion of aluminium and silicon (1)
- Nanoindentation (1)
- Nanokomposite (1)
- Nanophysik (1)
- Nanostructure (1)
- Nanostructured capacitors (1)
- Nanoviscosity (1)
- Nanowires (1)
- Neon (1)
- Network (1)
- Neutron Diffraction (1)
- Neutron imaging (1)
- Ni-Co oxide (1)
- Nickel-based superalloy (1)
- Nile Red (1)
- Niobcarbid (1)
- Niobium carbide (1)
- Nitrile rubber (1)
- Non-Destructive testing (1)
- Nonlinear (1)
- Notches (1)
- Novel optical measurement (1)
- Numerical inversion (1)
- Numerical simulation of welding (1)
- Numerische Simulation (1)
- Oligospiroketals (1)
- Online NMR spectroscopy (1)
- Optical Wavefield (1)
- Optoelektronik (1)
- Orientation distribution (1)
- Orientation mapping (1)
- Oxides (1)
- Oxyfuel (1)
- PEEK-Komposite (1)
- PET (1)
- PH (1)
- PIM-1 (1)
- PLGA cement (1)
- POD (1)
- POSS (1)
- Parameter Study (1)
- Partial safety factor (1)
- Particle (1)
- Particle architecture (1)
- Particle size (1)
- Particle size distribution (1)
- Particle size gradation (1)
- Pavement concrete (1)
- Perzyna viscoplasticity (1)
- Phosphine-ligands (1)
- Photo physics (1)
- Photocatalysis (1)
- Photon counting detectors (1)
- Photovoltaics (1)
- Physical ageing (1)
- Physical hazards (1)
- Piezopolarisation (1)
- Pitfalls (1)
- Pitting corrosion (1)
- Plasma polymers (1)
- Plasmid DNA pUC19 (1)
- Plasmonic absorption (1)
- Plasmonics (1)
- Plate girders (1)
- Polarity (1)
- Pollen (1)
- Poly(acrylic acid) (1)
- Poly- (hydroxyethylmethacrylate) (1)
- Polyacrylic acid (1)
- Polyamorphism (1)
- Polycaprolactone (1)
- Polyester (1)
- Polyester fabric strips (1)
- Polyethylene (PE-HD) (1)
- Polyethylenterephthalat (1)
- Polymer MALDI (1)
- Polymer based nanocomposites (1)
- Polymer degradation (1)
- Polymer-metal (1)
- Polymerization (1)
- Polymers of intrinsic microporosity (1)
- Polymorphic transition (1)
- Polymorphs (1)
- Polysaccharides (1)
- Polystyrene (1)
- Porosimetry (1)
- Porous film (1)
- Porous materials (1)
- Post-welding Imperfections (1)
- Powder diffraction (1)
- Pre-Columbian ceramics (1)
- Preceramic polymers (1)
- Probe (1)
- Process innovations (1)
- Projective geometry (1)
- Protein (1)
- Pseudo-dynamic loads (1)
- Pseudobrookite (1)
- Pullulan (1)
- Pyrazinamide (1)
- Quantum Yield (1)
- Quantum rod (1)
- Quantum yield standard (1)
- Quenching and partitioning (1)
- R-curve (1)
- RSSI (1)
- Radioprotector ectoine (1)
- Rapid prototyping (1)
- Reduced graphene oxide (1)
- Reference material (1)
- Reference materials (1)
- Refractive index (1)
- Repair welding (1)
- Residual Stresses (1)
- Resistance (1)
- Resonance (1)
- Resonance testing (1)
- Reverse time migration (1)
- Rheology (1)
- Ring-expansion polymerization (1)
- Rissbildung (1)
- Rock-art caves (1)
- Room-temperature (1)
- Rope (1)
- Rubber (1)
- Rubber granules (1)
- Rust (1)
- Röntgen-3D-Computertomographie (1)
- SA508 (1)
- SEM–EDS/EBSD (1)
- SERS (1)
- SHPB (1)
- SPH (1)
- STEM/TEM imaging (1)
- Sample pretreatment (1)
- Saxs (1)
- Scaffold (1)
- Scanning nano beam electron diffraction (1)
- Scanning transmission electron microscopy (STEM) (1)
- Scattering (1)
- Scattering Theory (1)
- Schneidstoff (1)
- Schneidwaren (1)
- Sealing materials (1)
- Selective laser melting (1)
- Self-assembled structures (1)
- Semiconductor quantum dot (1)
- Shape memory polymer (1)
- Shear test (1)
- Shear-compression tests (1)
- Shell (1)
- Shock absorbtion (1)
- Shore hardness (1)
- Shrinkage (1)
- Silica (1)
- Silica nanowires (1)
- Silicate glasses (1)
- Silicon (1)
- Silver (1)
- Simulation (1)
- Single crystal fiber (1)
- Sinter/sintering (1)
- Sliding friction (1)
- Small-angle x-ray scattering (1)
- Sn catalysts (1)
- Soft matter (1)
- Solidification cracking (1)
- Soyean oil (1)
- Spalling (1)
- Spannungsrissbeständigkeit (1)
- Specific heat spectroscopy (1)
- Specific surface (1)
- Spectroelectrochemistry (1)
- Spectroscopic ellipsomety (1)
- Sphingan (1)
- Spontane Polarisation (1)
- Spot welding (1)
- Spot welds (1)
- Spring Meeting 2016 (1)
- Stabilising agents (1)
- Stability (1)
- Standard (1)
- Standards (1)
- Stapeldruckprüfung (1)
- Starch (1)
- Static monitoring (1)
- Steam (1)
- Steel reinforced concrete (1)
- Stern Geary constant (1)
- Stern-Geary-Konstante (1)
- Stofftransport (1)
- Strengthening (1)
- Stress-strain behavior (1)
- Strontium yttrate (1)
- Structural Health Monitoring (1)
- Structural integrity (1)
- Structural properties (1)
- Structural relaxation (1)
- Structure solution (1)
- Sub-aerial biofilms (SAB) (1)
- Substitute model (1)
- Sulfobetaines (1)
- Supercapacitor (1)
- Superconducting magnets (1)
- Superconductor (1)
- Supercritical CO2 (1)
- Superparamagnetic nanoparticles (1)
- Superplasticity (1)
- Supra molecular polymerization (1)
- Surface analysis (1)
- Surface coating (1)
- Surface functionalization (1)
- Surface plasmon (1)
- Surface plasmon polariton (1)
- Surface plasmon resonance (1)
- Surface structuring (1)
- Surface tension (1)
- Surface texture (1)
- Surface treatment (1)
- Surface wetting (1)
- Sustainability assessment (1)
- Symbiosis (1)
- Synchrotron X-ray diffraction (1)
- Synchrotron, BAMline (1)
- Synthesis (1)
- TEM (1)
- TENSTAND WP4 Final Report (1)
- TENSTAND WP4 Report (1)
- TIG-welding (1)
- TKD (1)
- TMF (1)
- Talbot-Lau interferometer (1)
- Tandem gas metal arc welding (1)
- Tandem welding (1)
- Target plate material (1)
- Technikrecht (1)
- Temper (1)
- Temperature (1)
- Tensile behavior (1)
- Tensile loading (1)
- Tensile properties (1)
- Tensile strength (1)
- Tensile testing procedure (1)
- Test methods (1)
- Testing (1)
- The charge transfer and ionization process (CTI) (1)
- Theory (1)
- Thermal desorption spectrometry (TDS) (1)
- Thermal diffusivity (1)
- Thermal softening (1)
- Thermische Diffusivität (1)
- Thermo-mechanical fatigue (1)
- Thermomechanical Fatigue (TMF) (1)
- Thermomechanical fatigue (1)
- Thermoresponsive polymers (1)
- Thermoresponsive polymres (1)
- Thick films (1)
- Thin film metrology (1)
- Thin polymeric films (1)
- Thiol (1)
- Three-dimensional printing (1)
- Ti-6Al-4V (1)
- TiO2 (1)
- Time-of-flight secondary ion mass spectrometry (1)
- Tin catalysts (1)
- Titanite (1)
- Titanium alloys (1)
- Titanium dioxide (1)
- Titanium nitride films (1)
- Tnsile testing (1)
- Top-down (1)
- Trabecular structures (1)
- Transfer layer (1)
- Transformable steels (1)
- Transformation induced plasticity (1)
- Transmission Kikuchi diffraction (1)
- Transparent conductive oxides (1)
- Transport processes (1)
- Trinkwasser (1)
- UCST-type copolymer (1)
- UHMWPE (1)
- UN-GHS (1)
- UV radiation (1)
- UV/Vis and emission spectroscopy (1)
- Ultra thin polymer films (1)
- Ultra-Hochleistungsbeton (1)
- Ultrafast microscopy (1)
- Ultrasonic (1)
- Ultrasonic echo technique (1)
- Ultrasonic velocity (1)
- Uncertainty (1)
- Upconverion (1)
- VOC (1)
- Vakuum (1)
- Vapor-phase hydrofluorination (1)
- Vertebral (1)
- Vinyl fluoride (1)
- Void nucleation & growth (1)
- Volatile organic compound (1)
- Volumenbruchteil (1)
- Vorlagerungszeit (1)
- Vulcanisation system (1)
- Wasserstoff (1)
- Water oxydation catalysis (1)
- Weld filler (1)
- Welded Plate Girders (1)
- Welding residual stress (1)
- Welding residual stresses (1)
- Werkstofffragen (1)
- Widerstandspressschweißen (1)
- Widerstandspunktschweißen (1)
- X-ray CT (1)
- X-ray absorption fine structure (1)
- X-ray absorption near-edge structure (1)
- X-ray computer tomography (1)
- X-ray diffraction (1)
- X-ray diffractometry (XRD) (1)
- X-ray phase contrast (1)
- XAFS (1)
- XANES (1)
- XPS (1)
- Yb(III) (1)
- Yellowness index (1)
- Young's modulus (1)
- Young’s modulus (1)
- Zinc (1)
- Zinc(II) complexes (1)
- Zink (1)
- Zn-Fe-Zr nanoparticles (1)
- Zonierung (1)
- Zr(iV) compounds (1)
- biomineralization (1)
- calcium carbonate (1)
- martensitisch (1)
- microwave synthesis (1)
- nanoparticles (1)
- nichtrostender Stahl (1)
- nucleation (1)
- photocatalysis (1)
- polymer additives (1)
- µCT (1)
- α-1,4- and α-1,6-glucans (1)
- β-eucryptite (1)
The phase behavior of a dendritic amphiphile containing a Newkome-type dendron as the hydrophilic moiety and a cholesterol unit as the hydrophobic segment is investigated at the air–liquid interface. The amphiphile forms stable monomolecular films at the air–liquid interface on different subphases. Furthermore, the mineralization of calcium Phosphate beneath the monolayer at different calcium and phosphate concentrations versus mineralization time shows that at low calcium and Phosphate concentrations needles form, whereas flakes and spheres dominate at higher concentrations. Energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and electron diffraction confirm the formation of calcium phosphate. High-resolution transmission electron microscopy and electron diffraction confirm the predominant formation of octacalcium phosphate and hydroxyapatite.
The data also indicate that the final products form via a complex multistep reaction, including an association step, where nano-needles aggregate into larger flake-like objects.
The current review focuses on vesicles obtained from the self-assembly of two types of dendritic macromolecules, namely amphiphilic Janus dendrimers (forming dendrimersomes) and amphiphilic dumbbells. In the first part, we will present some synthetic strategies and the various building blocks that can be used to obtain dendritic-based macromolecules, thereby showing their structural versatility. We put our focus on amphiphilic Janus dendrimers and amphiphilic dumbbells that form vesicles in water but we also encompass vesicles formed thereof in organic solvents. The second part of this review deals with the production methods of these vesicles at the nanoscale but also at the microscale. Furthermore, the influence of various parameters (intrinsic to the amphiphilic JD and extrinsic—from the environment) on the type of vesicle formed will be discussed. In the third part, we will review the numerous biomedical applications of these vesicles of nano- or micron-size.
In situ EDXRD study of MAG-welding using LTT weld filler materials under structural restraint
(2017)
Welding using low transformation temperature (LTT) filler materials is an innovative approach to mitigate detrimental welding residual stresses without cost-intensive post weldtreatments. Due to the local Generation of compressive residual stresses in the weld line by means of a delayed martensite transformation a significant enhancement of the cold cracking resistance of highly stressed welded components can be expected. For the effective usage of These materials a deeper understanding of the microstructural evolution inside the weld material is necessary to determine the complex processes that cause the residual stress formation during welding. Solid-state phase transformation kinetics and the evolution of strain in LTT weld filler materials are monitored in-situ at the instrument ID15A at the ESRF in Grenoble, France. The transferability to real components is implemented by using a realistic MAG welding process under consideration of structural restraint. During welding of multilayer joints, the phase Transformation and phase specific strain evolution of each individual layer is investigated in transmission geometry by means of energy-dispersive X-ray diffraction EDXRD using high energy synchrotron Radiation with a counting rate of 2.5 Hz. The measurement results of a 10% Cr / 10% Ni LTT weld filler are compared to data monitored for the conventional weld filler material G89. The in-situ data clearly indicate a strong effect on the local strain evolution and the formation of compressive strain. This results from the restraint volume expansion during the postponed austenite to martensite transformation of the LTT weld filler, which counteracts the thermal shrinkage. In contrast, for the conventional weld filler material the thermal contraction strains lead to tensile residual strain during welding. Furthermore, the results of in-situ observation during welding Show that the transformation kinetic is dependent on the welding sequence.
Corrosion is the major degradation pathway affecting reinforced concrete structures. In the long-term, the rust layer might become thick and slow down the diffusion of oxygen from the atmosphere to the steel. With this in mind, the mineralogy, microstructure and diffusion properties of an old and thick corrosion product layer were investigated. Despite the presence of macropores, the gas diffusion coefficient was found to be low. The impact of the layer on the oxygen diffusion was evaluated using Fick’s law. The results showed that the layer could reduce the flux of oxygen only in a specific configuration.
A set of highly fluorescent, pH-responsive boron dipyrromethene dyes covering the pH range of 5-12 is presented for broad range pH measurements in mixed aqueous-organic median and polymer matrices. Readout in the intensity Domain with low cost and miniaturized Instrumentation utilizes reversible protonation induced switching ON of their initially completely quenched flourescence mediated by photoinduced electron Transfer. All dyes, rationally designed to reveal closely matching Absorption and Emission properties, are accessible via facile two-step reactions in Overall yields of up to 20%. By modifying the Substitution pattern of the meso-Aryl substiuent, the pKa values could be fine-tuned from 6 to 11. Integration of these molecules into polymeric films by a simple mixing procedure yielded reversible and longterm stable pH sensors for naked eye detection.
Carbon fiber reinforced polymer ropes are gaining in significance in the fields of civil engineering and hoisting applications. Thus, methods of non-destructive testing (NDT) need to be developed and evaluated with respect to new challenges and types of defects. Particularly important is the development of in-service testing solutions which allow the integration in global online monitoring systems. Conventional methods like electrical resistivity or strain measurements using optical fibers are already in use. This study investigates the possibility of using various X-ray techniques to increase the reliability and significance of NDT and their applicability to in-service testing. Conventional film radiography is the most common technique; however, even after image enhancement of the digitized film, this technique lacks contrast sensitivity and dynamic range compared to digital detector array (DDA) radiography. The DDA radiography is a highly sensitive method; yet, the limitation is that it delivers 2D images of 3D objects. By the use of co-planar translational laminography the detectability of planar defects is superior to 2D methods due to multiple projection angles. Apart from this, it can be used on-site due to a rather simple setup and robust equipment. In this work two photon counting detectors (PCD) with different sensor materials (Si and CdTe) were used. The results show that the resolution and defect recognition is lower in case of DDA radiography and laminography using PCDs compared to high-resolution computed tomography. However, the DDA radiography and laminography are sensitive enough to both fiber breakage and delaminations and can be significantly advantageous in terms of measurement time and adaptability for on-site monitoring.
Matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) is a well-implemented analytical technique for the investigation of complex biological samples. In MS, the sample preparation strategy is decisive for the success of the measurements. Here, sample preparation processes and target materials for the investigation of different pollen grains are compared. A reduced and optimized sample preparation process prior to MALDI-TOF measurement is presented using conductive carbon tape as target. The application of conductive tape yields in enhanced absolute signal intensities and mass spectral pattern information, which leads to a clear separation in subsequent pattern analysis. The results will be used to improve the taxonomic differentiation and identification, and might be useful for the development of a simple routine method to identify pollen based on mass spectrometry.
Poly(l-lactide)s are synthesized and annealed at 120 °C and changes of the molecular weight distribution (MWD) are monitored by matrix-assited laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. For example, benzyl alcohol+SnOct2 causes equilibration of odd- and even-numbered chains and the final goal of the transesterification is the most probable distribution. The underlying intermolecular transesterification is even observed at 100 and 80 °C in the solid state. However, cyclic tin mercaptide catalysts transform the initial most probable distribution into a MWD with maxima, which display a conspicuous fine structure due to a preferential crystallization of certain ring sizes. The optimum ring sizes for the crystallization are provided by ring-ring equilibration. The gradual formation of a special morphology shifts the melting temperature to values up to 187 °C. Annealing of commercial poly(l-lactide) with a cyclic tin catalyst also yields a distribution of mass peaks with a maximum showing the characteristic fine structure.
Lanthanide-doped photon-upconversion nanoparticles (UCNPs) have been the Focus of many Research activities in materials and life sciences in the last 15 years because of their potential to convert light between different spectral regions and their unique photophysical properties. To fully exploit the application potential of These facinating nanomaterials, a number of challenges have to be overcome, such as the low brightness, particularly of small UCNPs, and the reliable quantification of the excitation-power-density-dependent upconversion luminescence. In this series of critical Reviews, recent developments in the design, Synthesis, optical-spectroscopic characterization, and application of UCNPs are presented with Special Focus on bioanalysis and the life sciences. Here we guide the reader from the Synthesis of UCNPs to different concepts to enhance their luminescence, including the required optical-spectroscopic assessment to quantify material Performance; surface modification strategies and bioanalytical applications as well as selected examples of the use of UCNPs as reporters in different Assay formats are addressed in part II. Future Trends and challenges in the field of upconversion are discussed with Special emphasis on UCNP Synthesis and material characterization, particularly quantitative luminescence studies.