Measuring emissions precisely and on the go: Sven Rademacher will receive the first Hugo-Geiger prize for his infrared optical filter photometer. Second prize goes to Harry Kummer for his new heat exchanger coating system. In third place: Anna Marie Kruspe for her automated world music classification process.
Reliably measuring air quality – on the go
In October 2008, environmental zones were introduced in many of Germany‘s cities. Vehicles with red discs have since been banned from city centers. Still, emission loads in cities and major population centers continue to be too high. The reason for this is the fact that pollutants don‘t just come from traffic, but also from heating systems, power stations, industrial plants and from the natural environment. To monitor compliance with the legal regulations, the authorities need solid measurement data - recorded precisely and flexibly. So far, this data has generally come from stationary measuring locations. But because they are not extensively distributed, the values do not fully reflect the actual air composition. Sven Rademacher developed the mobile, infrared optical filter photometer as part of this Master‘s thesis at the Fraunhofer Institute for Physical Measuring Technology IPM in Freiburg. Unlike commercially available systems, it detects several gases at the same time. What‘s more, the device‘s position can be fixed using GALILEO, the European satellite navigation system, which allows for the measurement data to be precisely localized. This in turn permits conclusions to be drawn on the sources of the pollution and specific countermeasures to be initiated, imposing local traffic restrictions for example. An online air pollutant chart is to make the measurements transparent for everyone.
Making thermally driven air-conditioning systems more economical
In industrialized countries, high constructions with large glass fronts, will be part of the cityscape. These buildings, however, require a great deal of energy for heating and cooling. Experts believe that the demand only for cooling will triple by 2020. During summer, air-conditioning of rooms can be realised more efficiently by using thermally-driven adsorption cooling units. Here water, as a non-poisonous coolant, silica gel and zeolites as adsorption materials are used. Researchers must dramatically improve these technologies until they are economical and efficient and therefore suitable for daily use. In his diploma thesis at the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Harry Kummer developed a highly promising coating system for the use on heat exchangers integrated in these adsorption chillers. His coating system is flexible and suitable for new and optimized adsorption materials. It permits a higher power density of the units through faster adsorption cycles, making it possible to construct these units in a more economical and compact manner. There is a patent pending for the coating process, which is to be further optimized in a large-scale demonstration unit.
Automatically classifying “world music”
The music market is in a state of flux: Since the era of digital formats, music is being increasingly offered online to a globalized market. Automated processes help genres to be reliably classified and music archives to be managed affordably and efficiently. For that to happen, music databases must be pre-processed. Commercial solutions are already in place for standard music genres such as rock and pop, but not for world music. In her thesis at the Fraunhofer Institute for Digital Media Technology IDMT in Ilmenau, Anna Marie Kruspe developed an automated classification process for non-Western music genres. Using this process, she achieves an accuracy of 70 percent. This is equivalent to the existing systems for classifying Western music. So in future, “world music” can also be integrated into the international music market - benefitting both composers and consumers alike. The thesis emerged as part of »GlobalMusic2one«, a project supported by the Federal Ministry of Education and Research.
Sven Rademacher | Fraunhofer Research News
ESJET printing technology for large area active devices awarded
11.04.2019 | Fraunhofer-Institut für Angewandte Polymerforschung IAP
Pushing digital process optimization
02.04.2019 | Technische Universität Chemnitz
Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...
With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.
Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...
'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.
However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...
Working group led by physicist Professor Ulrich Nowak at the University of Konstanz, in collaboration with a team of physicists from Johannes Gutenberg University Mainz, demonstrates how skyrmions can be used for the computer concepts of the future
When it comes to performing a calculation destined to arrive at an exact result, humans are hopelessly inferior to the computer. In other areas, humans are...
Scientists develop a molecular recording tool that enables in vivo lineage tracing of embryonic cells
The beginning of new life starts with a fascinating process: A single cell gives rise to progenitor cells that eventually differentiate into the three germ...
29.04.2019 | Event News
17.04.2019 | Event News
15.04.2019 | Event News
22.05.2019 | Power and Electrical Engineering
21.05.2019 | Materials Sciences
21.05.2019 | Materials Sciences