This is the key finding of a new study carried out by an international research team under the supervision of Prof. Dr. Christian Wild (Marine Ecology,…
The genes in our DNA contain detailed assembly instructions for proteins, the “workers” carrying out and controlling virtually all processes in our cells. To…
Whether eyewear, windshields, display windows or solar cells – nearly everyone uses products that reduce reflections without being aware of it. These kinds of…
The technique, developed by researchers at the Zelinsky Institute of Organic Chemistry in a collaborative project, employs the metal palladium, which interacts…
Sensitive optical components such as semi-conductor laser diodes must be protected from back reflection. A conventional solution to this problem are Faraday optical diodes, which suffer verious problems. We offer a
novel, performant optical diode exploiting spin-orbit coupling of light.
The magnetic coupling is capable of transmitting
torque over a hermetically separated distance as a radial magnetic coupling and at smaller dimensions as an axial magnetic coupling. An application might be in a heart catheter pump, where the maximum size is an important and a strong limiting factor.
Using a reverse paint-by-numbers approach, scientists have located another gene that controls the brilliant patterning of Heliconius butterfly wings. Led by…
A known health hazard and contributor to acid rain, sulfur dioxide (SO2) is one of six air pollutants regulated by the U.S. Environmental Protection Agency….
Using the Continuous Electron Beam Accelerator Facility (CEBAF) at the Department of Energy's Jefferson Lab, a team of researchers has, for the first time,…
The Telomeres and Telomerase Group at the Spanish National Cancer Research Centre (CNIO), in collaboration with the Centre's Transgenic Mice Core Unit, has…
The team, led by cell biologist Professor Karina Reiß, therefore achieved a pioneering success. This is because the principle discovered is of fundamental…
Nobody is perfect, but sometimes it is the defect that makes the difference. For example, the electric properties of semiconductors undergo significant changes…
Improving thermal comfort in non-air-conditioned buildings
The use of pillow-plate heat exchangers in process industries has been continuously increasing. Usually, the heating or cooling medium flows through the inner channels of the pillow plates, while the process medium flows through the outer channels. The welding spots have an important influence on the three-dimensional structure of the plates and hence on the heat transfer characteristics of the apparatus. However, the welding spots themselves are largely passive with regard to heat transfer.
In the group of Professor Kenig, at the University of Paderborn, the design types used so far were further developed in order to increase the performance. This pillow-plate heat exchanger can be used for all relevant heat transfer applications in the chemical or process industry. This includes processes with phase change (condensation/evaporation). A typical application area is distillation, where pillow-plate heat exchangers can be used as integrated head condenser or reboiler. Further applications are processes with single-phase media on both sides of the apparatus.
A German patent application is pending, international applications are possible. On behalf of the University of Paderborn PROvendis offers licenses to interested companies.
The PhD student Margherita Bettinelli, of the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL), together with an international…
The hydrothermal vents and methane seeps on the ocean floor that were once thought to be geologic and biological oddities are now emerging as a major force in…
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