Refine
Year of publication
- 2020 (168) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (57)
- IfB - Institut für Bioengineering (32)
- Fachbereich Luft- und Raumfahrttechnik (28)
- Fachbereich Energietechnik (25)
- Fachbereich Elektrotechnik und Informationstechnik (20)
- ECSM European Center for Sustainable Mobility (14)
- Fachbereich Maschinenbau und Mechatronik (11)
- Fachbereich Wirtschaftswissenschaften (11)
- INB - Institut für Nano- und Biotechnologien (11)
- Fachbereich Chemie und Biotechnologie (9)
Has Fulltext
- no (168) (remove)
Language
- English (168) (remove)
Document Type
- Article (98)
- Conference Proceeding (46)
- Part of a Book (16)
- Book (2)
- Conference Poster (2)
- Doctoral Thesis (2)
- Conference: Meeting Abstract (1)
- Other (1)
Keywords
- MINLP (3)
- Additive manufacturing (2)
- Adjacent buildings (2)
- Experimental validation (2)
- Historical centres (2)
- Shake table test (2)
- Stone masonry (2)
- rebound-effect (2)
- sustainability (2)
- 3D printing (1)
- Acceptance (1)
- Adaptive control (1)
- Atmospheres (1)
- Blind prediction competition (1)
- Brownian Pillow (1)
- Bumblebees (1)
- Capacity Building Higher Education (1)
- Capacity Curve (1)
- Case study (1)
- Change culture (1)
- Conservation laws (1)
- Cooling system (1)
- Crámer–von-Mises distance (1)
- Digital manufacturing (1)
- Digitalization (1)
- Dimensional splitting (1)
- Efficiency optimization (1)
- Engineering optimisation (1)
- Engineering optimization (1)
- Entropy solution (1)
- Ethics (1)
- European Framework and South East Asia (1)
- Exoplanet (1)
- Exponential time differencing (1)
- Finite difference methods (1)
- Flight control (1)
- Glass powder (1)
- Higher-order codes (1)
- Hoeffding-Blum-Kiefer-Rosenblatt independence test (1)
- Human Development Index (1)
- Human factors (1)
- Human-robot collaboration (1)
- INODIS (1)
- Implicit methods (1)
- Incomplete data (1)
- Industrial optimisation (1)
- Interactive process mining (1)
- Interior transmission eigenvalues (1)
- Iterative learning control (1)
- L-PBF (1)
- Laser processing (1)
- Lean thinking (1)
- MAV (1)
- MILP (1)
- Malaysian Automotive Industry (1)
- Marginal homogeneity test (1)
- Masonry structures (1)
- Matrix exponential (1)
- Melting (1)
- Methodology (1)
- Mixed-integer programming (1)
- Monotone methods (1)
- Multi-dimensional partial differential equations (1)
- Neo-Deterministic (1)
- Network design (1)
- Nonlinear PDEs (1)
- OR 2019 (1)
- Objective data (1)
- Obstacle avoidance (1)
- Paired sample (1)
- Payload (1)
- Piecewise linearization (1)
- Powertrain (1)
- Process engineering (1)
- Pumping systems (1)
- Rapid manufacturing (1)
- Rapid prototyping (1)
- Reaction-diffusion systems (1)
- Real distinct pole (1)
- Resampling test (1)
- Resilience assessment (1)
- Resilience metric graph theory (1)
- Resilient infrastructure (1)
- Robotic rehabilitation (1)
- SSE) JEL : O33 (1)
- Seismic Hazard (1)
- Source term (1)
- Spectroscopy (1)
- Technical Operations Research (1)
- Technology Transfer (1)
- Transit (1)
- UAV (1)
- Vulnerability Curves (1)
- Water distribution system (1)
- Water supply system (1)
- agility (1)
- anticipation strategy (1)
- automotive (1)
- business analytics (1)
- community dwelling (1)
- connection detail (1)
- corporate sustainability (1)
- critical (1)
- decision analytics (1)
- digital economy (1)
- digital twin (1)
- earthquake (1)
- efficiency side-effects (1)
- elastic scattering (1)
- fault detection (1)
- grey energy (1)
- healthy aging (1)
- in-plane (1)
- industry 4.0 (1)
- jevons paradox (1)
- literature (1)
- marketing (1)
- mathematical optimization (1)
- method of fundamental solutions (1)
- not identically distributed (1)
- out-of-plane (1)
- prevention (1)
- psychosocial (1)
- random effects meta-regression model (1)
- resource abundance (1)
- review (1)
- socio-economic welfare (1)
- systematic (1)
- water supply system (1)
Is part of the Bibliography
- no (168)
Stored and cooled, highly-charged ions offer unprecedented capabilities for precision studies in the realm of atomic, nuclear structure and astrophysics[1]. After the successful investigation of the 96Ru(p,7)97Rh reaction cross section in 2009[2], the first measurement of the 124Xe(p,7)125Cs reaction cross section has been performed with decelerated, fully-ionized 124Xe ions in 2016 at the Experimental Storage Ring (ESR) of GSI[3]. Using a Double Sided Silicon Strip Detector, introduced directly into the ultra-high vacuum environment of a storage ring, the 125Cs proton-capture products have been successfully detected. The cross section has been measured at 5 different energies between 5.5AMeV and 8AMeV, on the high energy tail of the Gamow-window for hot, explosive scenarios such as supernovae and X-ray binaries. The elastic scattering on the H2 gas jet target is the major source of background to count the (p,7) events. Monte Carlo simulations show that an additional slit system in the ESR in combination with the energy information of the Si detector will enable background free measurements of the proton-capture products. The corresponding hardware is being prepared and will increase the sensitivity of the method tremendously.
Transport through Redox-Active Ru-Terpyridine Complexes Integrated in Single Nanoparticle Devices
(2020)
Transition metal complexes are electrofunctional molecules due to their high conductivity and their intrinsic switching ability involving a metal-to-ligand charge transfer. Here, a method is presented to contact reliably a few to single redox-active Ru-terpyridine complexes in a CMOS compatible nanodevice and preserve their electrical functionality. Using hybrid materials from 14 nm gold nanoparticles (AuNP) and bis-{4′-[4-(mercaptophenyl)-2,2′:6′,2″-terpyridine]}-ruthenium(II) complexes a device size of 30² nm² inclusive nanoelectrodes is achieved. Moreover, this method bears the opportunity for further downscaling. The Ru-complex AuNP devices show symmetric and asymmetric current versus voltage curves with a hysteretic characteristic in two well separated conductance ranges. By theoretical approximations based on the single-channel Landauer model, the charge transport through the formed double-barrier tunnel junction is thoroughly analyzed and its sensibility to the molecule/metal contact is revealed. It can be verified that tunneling transport through the HOMO is the main transport mechanism while decoherent hopping transport is present to a minor extent.
This chapter shows that nanomaterials obtained by high-temperature carbonization of inexpensive plant raw material such as rice husk, grape seeds, and walnut shells can serve as a basis for the production of highly efficient microbial drugs, biodestructors, biosorbents, and biocatalysts, which are promising for the remediation of the ecosystem contaminated with heavy and radioactive metals, oil and oil products. A strong interest in engineering zymology is dictated by the necessity to address the issues of monitoring enzymatic processes, treatment, and diagnosis of a number of common human diseases, environmental pollution, quality control of pharmaceuticals and food. Nanomaterials obtained by high-temperature carbonization of cheap plant raw material such as-rice husks, grape seeds and walnut shells, can serve as a basis for creating of highly effective microbial preparations-biodestructors, biosorbents and biocatalysts, which are promising for the use of contaminated ecosystems, and for restoration of human intestine microecology.
There is a growing body of evidence for the effects of vitamin D on intestinal host-microbiome interactions related to gut dysbiosis and bowel inflammation. This brief review highlights the potential links between vitamin D and gut health, emphasizing the role of vitamin D in microbiological and immunological mechanisms of inflammatory bowel diseases. A comprehensive literature search was carried out in PubMed and Google Scholar using combinations of keywords “vitamin D,” “intestines,” “gut microflora,” “bowel inflammation”. Only articles published in English and related to the study topic are included in the review. We discuss how vitamin D (a) modulates intestinal microbiome function, (b) controls antimicrobial peptide expression, and (c) has a protective effect on epithelial barriers in the gut mucosa. Vitamin D and its nuclear receptor (VDR) regulate intestinal barrier integrity, and control innate and adaptive immunity in the gut. Metabolites from the gut microbiota may also regulate expression of VDR, while vitamin D may influence the gut microbiota and exert anti-inflammatory and immune-modulating effects. The underlying mechanism of vitamin D in the pathogenesis of bowel diseases is not fully understood, but maintaining an optimal vitamin D status appears to be beneficial for gut health. Future studies will shed light on the molecular mechanisms through which vitamin D and VDR interactions affect intestinal mucosal immunity, pathogen invasion, symbiont colonization, and antimicrobial peptide expression.
This paper analyzes the drag characteristics of several landing gear and turret configurations that are representative of unmanned aircraft tricycle landing gears and sensor turrets. A variety of these components were constructed via 3D-printing and analyzed in a wind-tunnel measurement campaign. Both turrets and landing gears were attached to a modular fuselage that supported both isolated components and multiple components at a time. Selected cases were numerically investigated with a Reynolds-averaged Navier-Stokes approach that showed good accuracy when compared to wind-tunnel data. The drag of main gear struts could be significantly reduced via streamlining their cross-sectional shape and keeping load carrying capabilities similar. The attachment of wheels introduced interference effects that increased strut drag moderately but significantly increased wheel drag compared to isolated cases. Very similar behavior was identified for front landing gears. The drag of an electro-optical and infrared sensor turret was found to be much higher than compared to available data of a clean hemisphere-cylinder combination. This turret drag was merely influenced by geometrical features like sensor surfaces and the rotational mechanism. The new data of this study is used to develop simple drag estimation recommendations for main and front landing gear struts and wheels as well as sensor turrets. These recommendations take geometrical considerations and interference effects into account.
It is investigated whether a nonrotating lifting fan remaining uncovered during cruise flight, as opposed to being covered by a shutter system, can be realized with limited additional drag and loss of lift during cruise flight. A wind-tunnel study of a wing-embedded lifting fan has been conducted at the Side Wind Test Facility Göttingen of DLR, German Aerospace Center in Göttingen using force, pressure, and stereoscopic particle image velocimetry techniques. The study showed that a step on the lower side of the wing in front of the lifting fan duct increases the lift-to-drag ratio of the whole model by up to 25% for all positive angles of attack. Different sizes and inclinations of the step had limited influence on the surface pressure distribution. The data indicate that these parameters can be optimized to maximize the lift-to-drag ratio. A doubling of the curvature radius of the lifting fan duct inlet lip on the upper side of the wing affected the lift-to-drag ratio by less than 1%. The lifting fan duct inlet curvature can therefore be optimized to maximize the vertical fan thrust of the rotating lifting fan during hovering without affecting the cruise flight performance with a nonrotating fan.