Applying a current to cables under test always poses a major challenge in high-voltage technology, especially when long cable runs are involved. This is due to the coupling of the power required for testing, while taking into account the necessary insulation from the excitation circuit. Furthermore, for DC applications, it is also advisable to test with DC current, which is still very complex with current methods.

Explicit structural dynamics codes used to simulate crash, metal forming and explosions require optimized solution updates to achieve highly efficient calculations of transient processes. To achieve this, linear finite element codes use mass concentration, reduced quadrature and hourglass stabilization. A competitive higher order technology – with the potential to deliver more efficient simulations – has not yet been realized.

In addition to safety proof and operation in bad weather, the energy requirements for computing are an obstacle to the introduction of automated vehicles in more complex applications.

Currently, on-board chargers are largely implemented as a two-stage topology consisting of an active front end and a galvanically isolated DC-DC converter. The second stage is used to avoid fault currents that would trigger the residual current device (RCD). This has the disadvantage that the energy flow has to be converted twice using power electronics and in the process power loss occurs in both stages.

The upcoming 6G communication standard offers higher data transfer rates, low latency and optimized energy efficiency and could enable applications such as enable safe autonomous driving, telemedicine and 3D holography. increased path losses and lower environmental scatter at 6G frequencies are Signal transmission over long distances and through obstacles is difficult, which technical challenges, especially in secure real-time transmissions can create.

In their efforts to increase the energy efficiency of their production equipment, companies come up against three implementation hurdles: a lack of transparency regarding energy consumption, the implementation of less effective measures due to the high level of machine complexity and the low motivation of workers to implement the measures in operation. An assistance system that is independent of the equipment can remove these hurdles. The assistance system developed uses machine learning algorithms to analyze the electrical power requirements of the equipment measured by sensors in real time. Based on this, KPIs are calculated, the value of which determines whether a suitable measure is suggested. Workers operate the assistance system via an HMI. This not only displays the measures to be implemented, but also uses gamification elements to incentivize their implementation. The decisive factor here is the eco-score, which summarizes the current energy efficiency of the WZM plant. is summarized.

Phase noise measurements are highly relevant in the development of electromagnetic wave sources. In the terahertz (100 GHz-10 THz) range, these are carried out with microwave base devices and waveguide-based frequency extenders. This has two disadvantages: 1) The waveguide bands are usually limited to a tunability of about 50% of the center frequency, 2) The mounting accuracy & the surface roughness make access to frequencies > 1.5 THz difficult. The developed phase noise analyzer combines the tunability of photonic systems with the advantages of electronic measurement technology and low-noise photoconductors. Two laser systems provide a differential frequency in the terahertz range that can be set over several octaves, e.g. by means of two continuous wave lasers or two lines of a frequency comb. The photoconductor mixes the optical difference signal with the measurement signal and generates an easily measurable intermediate frequency signal

New developments in driver assistance systems are already able to prevent a large number of collisions with vulnerable road users (VRUs). However, the widespread use of these systems will continue for several generations of vehicles, meaning that a significant reduction in accidents, for example at dangerous junctions, is not to be expected in the next few years. Newer systems for the infrastructure have so far always required dedicated communication interfaces, which means that no improvement in road safety can be expected in the near future. road safety in the near future. We have developed a system that can be flexibly integrated into the infrastructure and warns drivers as well as pedestrians or cyclists of a collision. The system uses radar and infrared sensors to detect the movement of objects and identify potential collision paths. Road users are warned of an impending collision by a light signal. The self-sufficient system can be mounted on any pole as it calibrates itself automatically and does not require a power connection thanks to its integrated battery and solar module.

Astaxanthin, as a natural red colorant or powerful antioxidant, can be used in a wide variety of products. It also has health-promoting effects. The natural form of astaxanthin is more active due to the esterified hydroxyl groups and has a higher bioavailability than synthetic astaxanthin. The natural form is usually produced by microalgae. They use sunlight and CO2 to do this. We have modified a microalgae so that it can now produce astaxanthin. Even though such strains already exist, their use involves a great deal of effort. It requires cell harvesting and subsequent extraction of the astaxanthin from the biomass. Our development largely eliminates these steps. By using a membrane transporter, the microalgae releases the astaxanthin produced directly into the culture medium. An organic solvent coating of the cultures is then used for extraction, which can be easily vaporized afterwards. can simply be vaporized afterwards.

Many applications require robust optical methods based on the production of identical interferometers. These include, for example, quantum key distribution (QKD) based on the BBM92 protocol with phase-time entanglement or white light interferometry methods or certain OCT procedures. We have developed a method to build and operate any number of identical fiber-based Michelson interferometers at low cost. In our set-up, no expensive electro-optical components are required for phase adjustment, which leads to significant time and cost savings in production. This makes these interferometers economically attractive, for example for star-shaped QKD networks with the Time-Bin Entanglement Protocol, economically interesting.

Coating processes for ceramic coatings such as APS are often limited to oxide ceramics. The coatings produced are usually porous, which impairs their protection against corrosive species. In the case of precursor-derived ceramic protective coatings, fillers are added in order to achieve higher coating thicknesses. However, this always means a certain degree of inhomogeneity and porosity. Various preceramic precursors, both oxidic and non-oxidic, can be purchased commercially, but can also be chemically modified or synthesized. These can be applied to the substrate as a liquid coating, for example by spin coating, dip coating or spray coating. This is followed by rapid thermal treatment. This transforms the film into a ceramic whose properties can be adjusted via the choice of precursor and thermal treatment. This process is repeated until the desired thickness is achieved.

Large rolling bearings are currently manufactured in complex process chains. These manufacturing processes only make it possible to produce cost-intensive and generally heavy bearings. Innovative application possibilities are often in conflict with existing large bearing designs. The new production technologies of gap profiling and gap profile bending are used to manufacture the large-size bearing. With the slit profiling process, a flat sheet is upset at the strip edges in several stitches, forming a flange on both sides. The last stitch of the gap profiling process is used for superimposed bending around the vertical axis to create the circular geometry. Necessary properties for running surfaces such as shape, strength and hardness are inherent to the manufacturing process. This bearing design enables various bearing types, such as rolling elements or contact angles