Refine
Year of publication
- 2016 (280) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (54)
- Fachbereich Chemie und Biotechnologie (44)
- Fachbereich Bauingenieurwesen (35)
- Fachbereich Elektrotechnik und Informationstechnik (35)
- IfB - Institut für Bioengineering (35)
- Fachbereich Wirtschaftswissenschaften (31)
- Fachbereich Luft- und Raumfahrttechnik (28)
- Fachbereich Maschinenbau und Mechatronik (25)
- Fachbereich Energietechnik (17)
- INB - Institut für Nano- und Biotechnologien (15)
Document Type
- Article (117)
- Conference Proceeding (81)
- Part of a Book (28)
- Book (24)
- Other (10)
- Conference: Meeting Abstract (8)
- Report (5)
- Doctoral Thesis (3)
- Part of a Periodical (2)
- Patent (1)
Keywords
- Technical Operations Research (2)
- Additive Manufacturing (1)
- Annulus Fibrosus (1)
- Assessment (1)
- Asymptotic efficiency (1)
- Bacillus atrophaeus (1)
- Balance (1)
- Balanced hypergraph (1)
- Brandfall (1)
- Building Systems (1)
- Business Simulations (1)
- Cardiac myocytes (1)
- Cardiac tissue (1)
- CellDrum (1)
- Censored data (1)
- Co-managed care (1)
- Collaborative robot (1)
- Computational biomechanics (1)
- Controller Parameter (1)
- DNA biosensor (1)
- Designpraxis (1)
- Disc Degeneration (1)
- Diversity (1)
- Drinking Water Supply (1)
- Drug simulation (1)
- Duality (1)
- EN 1993-1-2 (1)
- Effizienz (1)
- Einbetten in das Internet der Dinge (1)
- Elderly (1)
- Electromechanical modeling (1)
- Engineering Education (1)
- Eutectic Silver Copper alloy (1)
- External knee adduction moments (1)
- Fall prevention (1)
- Field effect (1)
- Forschung, pränormativ (1)
- Frequency adaption (1)
- Gamification (1)
- Gender (1)
- Ground-level falls (1)
- Hall’s Theorem (1)
- Heart tissue culture (1)
- Higher Education (1)
- Hodgkin–Huxley models (1)
- Homogenization (1)
- Human-Robot interaction (1)
- Hypergraph (1)
- Hypothesentests (1)
- Induced pluripotent stem cells (1)
- Inotropic compounds (1)
- Intervertebral Disc (1)
- Intradiscal Pressure (1)
- Inverse dynamic problem (1)
- Inverse kinematic problem (1)
- Ion channels (1)
- Koenig’s Theorem (1)
- LAPS (1)
- Label-free detection (1)
- Layer-by-layer adsorption (1)
- Level Control System (1)
- Manipulated variables (1)
- Matching (1)
- Minimal-Ansatz für Embedded-Systeme (1)
- Mixed Integer Programming (1)
- Mixed-Integer Nonlinear Optimisation (1)
- Mobility (1)
- Mobility tests (1)
- Musculoskeletal model (1)
- Nucleus Pulposus (1)
- Optimal Closed Loop (1)
- Optimal Topology (1)
- Optimization (1)
- Parametric Design (1)
- Parametric Modelling (1)
- Path planning (1)
- Pharmacology (1)
- Poly(allylamine hydrochloride) (1)
- Porositat (1)
- Product-integration (1)
- Reference Process Model (1)
- Referenzmodellierung (1)
- Response Surface Method (1)
- SLM (1)
- Safety concept (1)
- Semi-parametric random censorship model (1)
- Serious Games (1)
- Solver Per- formance (1)
- Structuralist Architecture (1)
- Subject-oriented Business Process Management (1)
- Survival analysis (1)
- System Design (1)
- System Design Problem (1)
- TM Forum (1)
- TTIP (1)
- Technical Operation Research (1)
- Telecommunications Industry. (1)
- Tinetti test (1)
- Tragwerksbemessung (1)
- Unternehmensarchitektur (1)
- Unternehmenstransformation (1)
- Vergleich von Experimenten (1)
- Vertex cover (1)
- Volterra integral equation (1)
- Workspace monitoring (1)
- biosensors (1)
- building industry (1)
- chemical sensor (1)
- diversity (1)
- eTOM (1)
- efficiency (1)
- electronic communications markets (1)
- endospores (1)
- energy disspation (1)
- engineering education (1)
- enhanced Telecom Operations Map (eTOM) (1)
- friction (1)
- hiPS cardiomyocytes (1)
- immobilization (1)
- impulsive effects (1)
- industrial research (1)
- ingot (1)
- innovation (1)
- iron and steel industry (1)
- liberalisation (1)
- light-addressable potentiometric sensor (1)
- liquid-storage tank (1)
- liquid-structure interaction (1)
- materials technology (1)
- metal structure (1)
- organosilanes (1)
- plug-based microfluidic device (1)
- regulation (1)
- research project (1)
- research report (1)
- resistance of materials (1)
- seismic response (1)
- silanization (1)
- social responsible engineering (1)
- steel (1)
- structural design (1)
- structure-soil-structure interaction (1)
- testing hypotheses (1)
- wave run-up (1)
Visualization of the recovery process of defects in a cultured cell layer by chemical imaging sensor
(2016)
The chemical imaging sensor is a field-effect sensor which is able to visualize both the distribution of ions (in LAPS mode) and the distribution of impedance (in SPIM mode) in the sample. In this study, a novel cell assay is proposed, in which the chemical imaging sensor operated in SPIM mode is applied to monitor the recovery of defects in a cell layer brought into proximity of the sensing surface. A reduced impedance at a defect formed artificially in a cell layer was successfully visualized in a photocurrent image. The cell layer was cultured over two weeks, during which the temporal change of the photocurrent distribution corresponding to the recovery of the defect was observed.
A comparative performance analysis of the CFD platforms OpenFOAM and FLOW-3D is presented, focusing on a 3D swirling turbulent flow: a steady hydraulic jump at low Reynolds number. Turbulence is treated using RANS approach RNG k-ε. A Volume Of Fluid (VOF) method is used to track the air–water interface, consequently aeration is modeled using an Eulerian–Eulerian approach. Structured meshes of cubic elements are used to discretize the channel geometry. The numerical model accuracy is assessed comparing representative hydraulic jump variables (sequent depth ratio, roller length, mean velocity profiles, velocity decay or free surface profile) to experimental data. The model results are also compared to previous studies to broaden the result validation. Both codes reproduced the phenomenon under study concurring with experimental data, although special care must be taken when swirling flows occur. Both models can be used to reproduce the hydraulic performance of energy dissipation structures at low Reynolds numbers.
Im Jahr 2015 wurden in Deutschland über drei Millionen Benzinautos und lediglich 12.363 Elektroautos neu zugelassen. Das ursprünglich von der Bundesregierung vorgegebene Ziel, dass bis 2020 eine Million E-Autos auf deutschen Straßen fahren (und bis 2030 sechs Millionen), rückt damit in immer weitere Ferne. Um das Ziel dennoch zu erreichen, plant die Bundesregierung nun eine staatliche Prämie für den Kauf von Elektroautos: Umwelt-, Verkehrs- und Wirtschaftsministerium haben gemeinsam ein Konzept entworfen, dem zufolge private Käufer zukünftig einen Zuschuss von 5.000 Euro beim Erwerb eines Elektroautos bekommen sollen. 40 Prozent dieses Zuschusses soll von den Autoherstellern getragen werden. Das Programm, das weitere ausgabenwirksame öffentliche Maßnahmen vorsieht, würde Kosten in Milliardenhöhe verursachen. Die beabsichtigte Subventionierung wirft die Frage auf, ob diese wirtschaftlich sinnvoll sind.
Entwicklung eines Kletterroboters zur Diagnose und Instandsetzung von Windenergieanlagen (SMART)
(2016)
A multi-spot light-addressable potentiometric sensor (LAPS), which belongs to the family of semiconductor field-effect devices, was applied for label-free detection of double-stranded deoxyribonucleic acid (dsDNA) molecules by their intrinsic molecular charge. To reduce the distance between the DNA charge and sensor surface and thus, to enhance the electrostatic coupling between the dsDNA molecules and the LAPS, the negatively charged dsDNA molecules were electrostatically adsorbed onto the gate surface of the LAPS covered with a positively charged weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)). The surface potential changes in each spot of the LAPS, induced by the layer-by-layer adsorption of a PAH/dsDNA bilayer, were recorded by means of photocurrent-voltage and constant-photocurrent measurements. In addition, the surface morphology of the gate surface before and after consecutive electrostatic adsorption of PAH and dsDNA layers was studied by atomic force microscopy measurements. Moreover, fluorescence microscopy was used to verify the successful adsorption of dsDNA molecules onto the PAH-modified LAPS surface. A high sensor signal of 25 mV was registered after adsorption of 10 nM dsDNA molecules. The lower detection limit is down to 0.1 nM dsDNA. The obtained results demonstrate that the PAH-modified LAPS device provides a convenient and rapid platform for the direct label-free electrical detection of in-solution hybridized dsDNA molecules.
Optimization of the immobilization of bacterial spores on glass substrates with organosilanes
(2016)
Spores can be immobilized on biosensors to function as sensitive recognition elements. However, the immobilization can affect the sensitivity and reproducibility of the sensor signal. In this work, three different immobilization strategies with organosilanes were optimized and characterized to immobilize Bacillus atrophaeus spores on glass substrates. Five different silanization parameters were investigated: nature of the solvent, concentration of the silane, silanization time, curing process, and silanization temperature. The resulting silane layers were resistant to a buffer solution (e.g., Ringer solution) with a polysorbate (e.g., Tween®80) and sonication.
A refined substructure technique in the frequency domain is developed, which permits consideration of the interaction effects among adjacent containers through the supporting deformable soil medium. The tank-liquid systems are represented by means of mechanical models, whereas discrete springs and dashpots stand for the soil beneath the foundations. The proposed model is employed to assess the responses of adjacent circular, cylindrical tanks for harmonic and seismic excitations over wide range of tank proportions and soil conditions. The influence of the number, spatial arrangement of the containers and their distance on the overall system's behavior is addressed. The results indicate that the cross-interaction effects can substantially alter the impulsive components of response of each individual element in a tank farm. The degree of this impact is primarily controlled by the tank proportions and the proximity of the predominant natural frequencies of the shell-liquid-soil systems and the input seismic motion. The group effects should be not a priori disregarded, unless the tanks are founded on shallow soil deposit overlying very stiff material or bedrock.