With plain tube heat exchangers, flow separations can occur which stimulate the pipes to ski. This in turn leads to material fatigue. By attaching 120 degrees offset triangular ribs, which extend in the longitudinal direction of the tubes, the detachment points can be fixed symmetrically on the tube.....
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The yarn passes through two coaxially arranged cylindrical stencils, the outer one of which has a slit-shaped opening and the inner one a helical one. By rotating the outer cylinder at a speed adapted to the yarn speed, a ring-shaped structure that is limited in an axial direction can be applied to .....
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Corallopyronin A is a new antibiotic in filarial and dirofilarial infections with a new mode of action resulting in fewer adverse reaction and unlikelyness of resistances development.
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The novel powertrain integrated DC-DC converter for hybrid vehicles extends the familiar conventional inverter topology for operating the starter with just two power semiconductors and an intelligent controller.The innovative technology reduces the space requirements, the weight and overall cost of .....
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8-Etinylxanthines: potent dual-target-directed adenosine receptor antagonists with a beneficial neuroprotective function in Parkinson’s and Alzheimer’s disease.
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