Thermoregulatoren, Thermostaten und Druckregulatoren

Ohne Zusammenfassung     

Ein Minimalgasgebl?se

Ohne Zusammenfassung     

Einige kleine, neue Laboratoriumsapparate

Ohne Zusammenfassung     

Die Trennung von Amin- und S?urefunktion mittels Formaldehyds

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Zum Nachweis des Furfurols

Ohne Zusammenfassung     

An automotive bulk recycling planning model

The automotive recycling infrastructure successfully recovers 75% of the material weight in end-of-life vehicles primarily through ferrous metal separation. However, this industry faces significant challenges as automotive manufacturers increase the use of nonferrous and nonmetallic materials. As the nonferrous content in end-of-life vehicles rises, automotive shredders need to evaluate to what extent to separate nonferrous metals. We propose a recycling planning model for automotive shredders to make short-term tactical decisions regarding to what extent to process and to reprocess materials through multiple passes. In addition, the mixed integer programming model determines whether to combine materials for shipment. In a case study for automotive shredding decisions for the current composition and more polymer-intensive end-of-life vehicles, we use our model to show the sensitivity of the decision to reprocess light nonferrous metal to low and high metal prices. Contrary to observations in practice to mix light and heavy nonferrous metals for shipment, we show multiple scenarios where the model chooses to reprocess and ship separated light and heavy nonferrous metals.     

The deep Compton scattering: Single photon spectrum and photon-hadron correlations beyond leading logarithms

We have calculated higher order QCD corrections to the Deep Inelastic Compton single inclusive cross-section. The perturbation expansion seems to be well behaved: the corrections are small and the fully corrected cross-section depends little on the factorization scale which is chosen. A complete phenomenological study at SPS, Tevatron and HERA energies is performed and theoretical predictions tend to be in good agreement with preliminary experimental data. The corrections to the double inclusive cross-section (σ(γp→γhX) are also calculated and found to be small in the region of physical interest for σ(γp→γπ⁺ X)?σ(γp→γπ^? X)     

High temperature O2-CARS thermometry

O₂ temperature measurements at T=1910K have been performed by coherent anti-Stokes Raman scattering (CARS) inside a homogeneously heated gas volume of a tube furnace. The oxygen CARS spectrum can now be modeled accurately within the higher vibrational levels of the Q-branch manifold populated at flame temperatures using recently available spectroscopic data and collisional broadening coefficients.