Refine
Year of publication
Document Type
- Conference Proceeding (91)
- Article (47)
- Lecture (3)
- Report (2)
- Course Material (1)
- Other (1)
Has Fulltext
- yes (145) (remove)
Keywords
- Biosensor (25)
- Finite-Elemente-Methode (16)
- CAD (15)
- civil engineering (14)
- Bauingenieurwesen (13)
- Einspielen <Werkstoff> (13)
- shakedown analysis (8)
- FEM (6)
- Clusterion (5)
- limit analysis (5)
- Air purification (4)
- Einspielanalyse (4)
- Hämoglobin (4)
- Limit analysis (4)
- Luftreiniger (4)
- Plasmacluster ion technology (4)
- Raumluft (4)
- Shakedown (4)
- Shakedown analysis (4)
- Technische Mechanik (4)
- Traglast (4)
- Traglastanalyse (4)
- shakedown (4)
- Kohlenstofffaser (3)
- Lipopolysaccharide (3)
- Sonde (3)
- lipopolysaccharides (3)
- ratchetting (3)
- Analytischer Zulaessigkeitsnachweis (2)
- Architektur (2)
- Bruchmechanik (2)
- Capacitive field-effect sensor (2)
- Druckbeanspruchung (2)
- Druckbehälter (2)
- Druckbelastung (2)
- Einspiel-Analyse (2)
- Eisschicht (2)
- Erythrozyt (2)
- Fehlerstellen (2)
- Fibroblast (2)
- Label-free detection (2)
- Pflanzenphysiologie (2)
- Pflanzenscanner (2)
- Ratcheting (2)
- Rohr (2)
- Rohrbruch (2)
- Stahl (2)
- Stickstoffmonoxid (2)
- architecture (2)
- biosensor (2)
- biosensors (2)
- burst pressure (2)
- burst tests (2)
- capacitive field-effect sensors (2)
- celldrum technology (2)
- flaw (2)
- limit load (2)
- load limit (2)
- nanostructured carbonized plant parts (2)
- nanostrukturierte carbonisierte Pflanzenteile (2)
- nitric oxide gas (2)
- pipes (2)
- plant scanner (2)
- tension–torsion loading (2)
- vessels (2)
- 3-nitrofluoranthene (1)
- Adsorption (1)
- Alternating plasticity (1)
- Analysis (1)
- Anastomose (1)
- Anastomosis (1)
- Architectural design (1)
- Arthosetherapie (1)
- Aufschlagversuch (1)
- Autofluoreszenzverfahren (1)
- Axialbelastung (1)
- Axially cracked pipe (1)
- BTEX compounds (1)
- Bacterial cellulose (1)
- Bakterien (1)
- Basis Reduktion (1)
- Basis reduction (1)
- Bicharakteristikenverfahren (1)
- Bio-Sensors (1)
- Bioabsorbable (1)
- Biomechanics (1)
- Biomechanik (1)
- Biomedizinische Technik (1)
- Biophoton (1)
- Bioreaktor (1)
- Biosensorik (1)
- Blitzschutz (1)
- Blutzellenlagerung (1)
- Bone quality and biomechanics (1)
- CAD ; (1)
- CO (1)
- Carbon sources (1)
- Cellulose nanostructure (1)
- Cement infiltration (1)
- Conducing polymer (1)
- Convex optimization (1)
- Cost-effectiveness (1)
- Culture media (1)
- Dattel (1)
- Deformation (1)
- Dekontamination (1)
- Design-by-analysis (1)
- Druckgeräte (1)
- ECT (1)
- ELISA (1)
- EPN (1)
- Einspiel-Kriterium (1)
- Einspielen (1)
- Elastizität (1)
- Elastodynamik (1)
- Elastostatics (1)
- Elektrodynamik (1)
- Endothelzelle (1)
- Enterprise information systems (1)
- Environmental impact (1)
- Enzyme-linked immunosorbent assay (1)
- Epithel (1)
- Exact Ilyushin yield surface (1)
- Experiment (1)
- FEM-Programm (1)
- FEM-computation (1)
- Fault approximation (1)
- Fault detection (1)
- Festkörper (1)
- Finite element method (1)
- First Order Reliabiblity Method (1)
- First-order reliability method (1)
- Fließgrenze (1)
- Fluorescence (1)
- Fußball (1)
- GaAs hot electron injector (1)
- Gas sensor (1)
- Geriatric (1)
- German (1)
- Global and local collapse (1)
- Gold nanoparticles (1)
- Gonarthrose (1)
- Grenzwertberechnung (1)
- Gunn diode (1)
- Harnleiter (1)
- Heavy metal detection (1)
- Hemoglobin structure (1)
- High throughput experimentation (1)
- Hip fractures (1)
- Hotplate (1)
- Human Factors (1)
- Hydrodynamik (1)
- Hydrogel (1)
- Hydrogen sensor (1)
- Hämoglobinstruktur (1)
- I3S 2005 (1)
- ISFET (1)
- Information Integration Tools (1)
- Information extraction (1)
- International Symposium on Sensor Science (1)
- Inverse scattering problem (1)
- Kinematics (1)
- Kinetics (1)
- Kniegelenkarthrose (1)
- Knochen (1)
- Knochenbildung (1)
- Knochenchirugie (1)
- Knochendichte (1)
- Knowledge Management (1)
- Körpertemperatur (1)
- LED chip (1)
- LISA (1)
- Level sensor (1)
- Lichtstreuungsbasierte Instrumente (1)
- MBST (1)
- MCDA (1)
- MEMS (1)
- Main sensitivity (1)
- Materialermüdung (1)
- Mechanics (1)
- Mechanische Beanspruchung (1)
- Medusomyces gisevi (1)
- Microreactors (1)
- Model-driven software engineering (1)
- Multi-dimensional wave propagation (1)
- Multicell (1)
- Multiplexing (1)
- Nano Materials (1)
- Nanomaterial (1)
- Nanoparticles (1)
- Nanopartikel (1)
- Nanostructuring (1)
- Nanotechnologie (1)
- Nanotechnology ; Microelectronics ; Biosensors ; Superconductor ; MEMS (1)
- Natriumhypochlorit (1)
- Nichtlineare Gleichung (1)
- Nichtlineare Optimierung (1)
- Nichtlineare Welle (1)
- Ontologie <Wissensverarbeitung> (1)
- Ontology Engineering (1)
- Organkultur (1)
- Organophosphorus (1)
- Ostazine Orange (1)
- Osteoporose (1)
- Osteoporosis (1)
- PFM (1)
- Permeability (1)
- Permeabilität (1)
- Peroxidase (1)
- Pflanzenstress (1)
- Phenylalanine determination (1)
- Plant virus (1)
- Plastizität (1)
- Polylactide acid (1)
- Potentiometry (1)
- Pressure loaded crack-face (1)
- Prevention (1)
- Progressive plastic deformation (1)
- Prophylaxis (1)
- Proteine (1)
- Pseudomonas putida (1)
- Quartz crystal nanobalance (QCN) (1)
- Quartz micro balances (1)
- Random variable (1)
- Ratchetting (1)
- Reaction-diffusion (1)
- Red blood cell storage (1)
- Resistive temperature detector (1)
- Schienbeinschoner (1)
- Schwammknochen (1)
- Sensitivity (1)
- Sepsis (1)
- Shakedown criterion (1)
- Silk fibroin (1)
- Skeletal muscle (1)
- Small Aral Sea (1)
- Software and systems modeling (1)
- Solid amalgam electrodes (1)
- Statics (1)
- Strukturanalyse (1)
- Supraleiter (1)
- Temperaturabhängigkeit (1)
- Tendons (1)
- Tin oxide (1)
- Tissue Engineering (1)
- Tobacco mosaic virus (TMV) (1)
- Torsion (1)
- Torsionsbelastung (1)
- Tragfähigkeit (1)
- UML (1)
- Ultrasound (1)
- Unified Modeling Language (1)
- Vertebroplastie (1)
- Vertebroplasty (1)
- Viscous flow (1)
- Viskose Strömung (1)
- Viskosität (1)
- Wafer (1)
- Wasserbrücke (1)
- Wasserstoffperoxid (1)
- Wellen (1)
- Wolff's Law (1)
- Wolffsches Gesetz (1)
- Wundheilung (1)
- Zeta potential (1)
- Zug-Druck Belastung (1)
- Zug-Druck-Beanspruchung (1)
- Zug-Druck-Belastung (1)
- acetoin (1)
- acetoin reductase (1)
- activated nanostructured carbon (1)
- aktivierte nanostrukturierte Kohlenstofffaser (1)
- alcoholic beverages (1)
- alternierend Verformbarkeit (1)
- ammonia gas sensors (1)
- amperometric biosensors (1)
- amperometric sensor (1)
- antimony doped tin oxide (1)
- aromatic amines (1)
- arthrosis therapy (1)
- atomic layer deposition (1)
- autofluorescence-based detection system (1)
- bicharacteristics (1)
- bioburdens (1)
- biocompatible (1)
- biocompatible materials (1)
- biodegradabl (1)
- biodegradable electronic devices (1)
- bone density (1)
- bone structure (1)
- cancellous bone (1)
- capacitive electrolyte–insulator–semiconductor sensors (1)
- capillary micro-droplet cell (1)
- carbon electrodes (1)
- carbonized rice husk (1)
- carcinogens (1)
- catalytic decomposition (1)
- chemical reduction method (1)
- contractile tension (1)
- cross sensitivity (1)
- cytosolic water diffusion (1)
- date palm tree (1)
- design-by-analysis (1)
- direct method (1)
- doped metal oxide (1)
- doped silicon (1)
- doping (1)
- ecological structure (1)
- elastic solids (1)
- electrical capacitance tomography (1)
- electro-migration (1)
- electronic noses dendronized polymers inverted mesa technology (1)
- encapsulation materials (1)
- enzymatic biosensor (1)
- enzymatic methods (1)
- enzyme immobilisation (1)
- epithelization (1)
- fatigue analyses (1)
- fenitrothion (1)
- fibroin (1)
- finite element analysis (1)
- fluidic (1)
- fortschreitende plastische Deformation (1)
- gas sensor (1)
- gas sensor array (1)
- glucose (1)
- gonarthrosis (1)
- graphene oxide (1)
- heater metallisation (1)
- hemoglobin (1)
- hemoglobin dynamics (1)
- high-temperature stability (1)
- human dermal fibroblasts (1)
- humidity (1)
- hydrogel (1)
- hydrogen peroxide (1)
- image sensor (1)
- imaging (1)
- impedance spectroscopy (1)
- ion-selective electrodes (1)
- kontraktile Spannung (1)
- konvexe Optimierung (1)
- lab-on-a-chip (1)
- lab-on-chip (1)
- large language models (1)
- layer expansion (1)
- layer-by-layer technique (1)
- lenslet array (1)
- light scattering analysis (1)
- lightning flash (1)
- limit and shakedown analysis (1)
- linear kinematic hardening (1)
- load carrying capacity (1)
- lower bound theorem (1)
- magnetic particles (1)
- material shakedown (1)
- matrix method (1)
- mechanical waves (1)
- metagenomics (1)
- metal oxide (1)
- microbial diversity (1)
- microreactor (1)
- microwave generation (1)
- modeling biosensor (1)
- modelling (1)
- modified electrode (1)
- multi-interface measurement (1)
- nanomaterials (1)
- naphtols (1)
- nitrogen oxides (1)
- nonlinear kinematic hardening (1)
- nonlinear optimization (1)
- nonlinear solids (1)
- nonlinear tensor constitutive equation (1)
- organic PVC membranes (1)
- pH sensors (1)
- pH-based biosensing (1)
- pattern-size reduction (1)
- penicillin (1)
- penicillinase (1)
- phenols (1)
- photoelectrochemistry (1)
- plant stress (1)
- plasma generated ions (1)
- plastic deformation (1)
- polyaniline (1)
- polymer composites (1)
- porous Pt electrode (1)
- principal component (1)
- probabilistic fracture mechanics (1)
- protein (1)
- quantum charging (1)
- reliability (1)
- reliability analysis (1)
- rhAPC (1)
- screen-printing (1)
- second-order reliability method (1)
- self-aligned patterning (1)
- semantic role labeling (1)
- sensing properties (1)
- shakedown analyses (1)
- shotgun sequencing (1)
- speaker attribution (1)
- sterilisation (1)
- sterility tests (1)
- sterilization efficacy (1)
- sterilization methods (1)
- subsurface ice research (1)
- subsurface probe (1)
- surface modification (1)
- swift heavy ions (1)
- thermal ratcheting (1)
- thick-film technology (1)
- thin-film microsensors (1)
- titanium dioxide photoanode (1)
- ultrathin gate insulators (1)
- validation methods (1)
- voltammetry (1)
- wafer-level testing (1)
- water bridge phenomenon (1)
- wound healing (1)
- yield stress (1)
Institute
- Fachbereich Medizintechnik und Technomathematik (145) (remove)
Sleep spindles are neurophysiological phenomena that appear to be linked to memory formation and other functions of the central nervous system, and that can be observed in electroencephalographic recordings (EEG) during sleep. Manually identified spindle annotations in EEG recordings suffer from substantial intra- and inter-rater variability, even if raters have been highly trained, which reduces the reliability of spindle measures as a research and diagnostic tool. The Massive Online Data Annotation (MODA) project has recently addressed this problem by forming a consensus from multiple such rating experts, thus providing a corpus of spindle annotations of enhanced quality. Based on this dataset, we present a U-Net-type deep neural network model to automatically detect sleep spindles. Our model’s performance exceeds that of the state-of-the-art detector and of most experts in the MODA dataset. We observed improved detection accuracy in subjects of all ages, including older individuals whose spindles are particularly challenging to detect reliably. Our results underline the potential of automated methods to do repetitive cumbersome tasks with super-human performance.
The ANM’09 multi-disciplinary scientific program includes topics in the fields of "Nanotechnology and Microelectronics" ranging from "Bio/Micro/Nano Materials and Interfacing" aspects, "Chemical and Bio-Sensors", "Magnetic and Superconducting Devices", "MEMS and Microfluidics" over "Theoretical Aspects, Methods and Modelling" up to the important bridging "Academics meet Industry".
The importance of the availability of stored blood or blood cells, respectively, for urgent transfusion cannot be overestimated. Nowadays, blood storage becomes even more important since blood products are used for epidemiological studies, bio-technical research or banked for transfusion purposes. Thus blood samples must not only be processed, stored, and shipped to preserve their efficacy and safety, but also all parameters of storage must be recorded and reported for Quality Assurance. Therefore, blood banks and clinical research facilities are seeking more accurate, automated means for blood storage and blood processing.
This work is an attempt to answer the question: How to use convex programming in shakedown analysis of structures made of materials with temperature-dependent properties. Based on recently established shakedown theorems and formulations, a dual relationship between upper and lower bounds of the shakedown limit load is found, an algorithmfor shakedown analysis is proposed. While the original problem is neither convex nor concave, the algorithm presented here has the advantage of employing convex programming tools.
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.
Reliable automation of the labor-intensive manual task of scoring animal sleep can facilitate the analysis of long-term sleep studies. In recent years, deep-learning-based systems, which learn optimal features from the data, increased scoring accuracies for the classical sleep stages of Wake, REM, and Non-REM. Meanwhile, it has been recognized that the statistics of transitional stages such as pre-REM, found between Non-REM and REM, may hold additional insight into the physiology of sleep and are now under vivid investigation. We propose a classification system based on a simple neural network architecture that scores the classical stages as well as pre-REM sleep in mice. When restricted to the classical stages, the optimized network showed state-of-the-art classification performance with an out-of-sample F1 score of 0.95 in male C57BL/6J mice. When unrestricted, the network showed lower F1 scores on pre-REM (0.5) compared to the classical stages. The result is comparable to previous attempts to score transitional stages in other species such as transition sleep in rats or N1 sleep in humans. Nevertheless, we observed that the sequence of predictions including pre-REM typically transitioned from Non-REM to REM reflecting sleep dynamics observed by human scorers. Our findings provide further evidence for the difficulty of scoring transitional sleep stages, likely because such stages of sleep are under-represented in typical data sets or show large inter-scorer variability. We further provide our source code and an online platform to run predictions with our trained network.
In this work, the effects of carbon sources and culture media on the production and structural properties of bacterial cellulose (BC) synthesized by Medusomyces gisevii have been studied. The culture medium was composed of different initial concentrations of glucose or sucrose dissolved in 0.4% extract of plain green tea. Parameters of the culture media (titratable acidity, substrate conversion degree etc.) were monitored daily for 20 days of cultivation. The BC pellicles produced on different carbon sources were characterized in terms of biomass yield, crystallinity and morphology by field emission scanning electron microscopy (FE-SEM), atomic force microscopy and X-ray diffraction. Our results showed that Medusomyces gisevii had higher BC yields in media with sugar concentrations close to 10 g L−1 after a 18–20 days incubation period. Glucose in general lead to a higher BC yield (173 g L−1) compared to sucrose (163.5 g L−1). The BC crystallinity degree and surface roughness were higher in the samples synthetized from sucrose. Obtained FE-SEM micrographs show that the BC pellicles synthesized in the sucrose media contained densely packed tangles of cellulose fibrils whereas the BC produced in the glucose media displayed rather linear geometry of the BC fibrils without noticeable aggregates.
Limit and shakedown analysis are effective methods for assessing the load carrying capacity of a given structure. The elasto–plastic behavior of the structure subjected to loads varying in a given load domain is characterized by the shakedown load factor, defined as the maximum factor which satisfies the sufficient conditions stated in the corresponding static shakedown theorem. The finite element dicretization of the problem may lead to very large convex optimization. For the effective solution a basis reduction method has been developed that makes use of the special problem structure for perfectly plastic material. The paper proposes a modified basis reduction method for direct application to the two-surface plasticity model of bounded kinematic hardening material. The considered numerical examples show an enlargement of the load carrying capacity due to bounded hardening.
Tests with palm tree leaves have just started yet and scan data are in the process to be analyzed. The final goal of future project for palm tree gender and species recognition will be to develop optical scanning technology to be applied to date palm tree leaves for in–situ screening purposes. Depending on the software used and the particular requirements of the users the technology potentially shall be able to identify palm tree diseases, palm tree gender, and species of young date palm trees by scanning leaves.