To achieve the most precise representation of digital 3D objects in space, several optical reference points in the form of QR codes have been used, the positioning of which must be precisely measured for the calibration process. This procedure is time-consuming and error-prone.

The effect of nanocomposites on UV aging properties of asphalt binders is well known. The aim of modifying asphalt binders with nanocomposite is to retard aging, deformability and thermal susceptibility in order to improve mechanical strength, thus increasing the quality and durability of road pavements. Titanium dioxide, copper oxide, zinc oxide, silicon dioxide and montmorillonite […]

When designing a suction system, nominally  necessary local suction­ ­efficiency­ is­ calculated­ by design methods­­. In all subsequent steps, including the operational phase as well as maintenance and repair, these can then only be determined indirectly.  This requires numerous input variables from experiments and simulations and is therefore susceptible to error propagation. Currently, these are […]

Fuel cells are electricitygenerating devices that electrochemically convert the energy stored in fuels into electricity. Water balance is one of the greatest challenges associated with the PEM fuel cell. Depending on the load and the operating conditions, the electrolyte membrane can flood or dry out. There are various strategies to achieve the correct water balance, […]

Transcodes audio and/or video signals always suffer from some quality loss due to the quantization/coding error that is measurable and oftentimes also perceivable. Postprocessing attempts to improve the quality of the transcodes signal after transmission or storage.

Incorrectly applied adhesive causes soiling (e.g. stringing), which often has to be removed by hand. Previous methods of reducing thread tension (e.g. “snuff back” valves or cutting the thread with a wire) have significant disadvantages. For example, they are only suitable for a limited number of adhesives or they only reduce thread pulling insignificantly.

The standard therapies for Clostridium difficile infection (CDI) include the antibiotics metronidazole and vancomycin. The therapy is not effective because relapses occur in 25-40% of cases.

Additive manufacturing strategies are transferred to large-scale building components made of concreate. Additive manufactoring methods heretofore known in the state of the art are extruding concrete strands and particle bed printing.

Until now, mainly AC systems in high-voltage transmission have been used in Europe. However, DC systems are suitable for higher outputs with the same track width, for longer distances and for longer cable connections.

So far, rooms are predominantly monitored with standard photoelectric barriers, grids or curtains. In the case of a light barrier, the surveillance area is defined by the distance between the light transmitter and receiver. On the other hand, light curtains or light curtains use multiple light beams to monitor large areas, and are therefore often […]