Low-pTcollective flow induces high-pTjet quenching

Low - pT collective flow induces high - pT jet quenching

Data on low-pT hadronic spectra are widely regarded as evidence of a hydrodynamic expansion in nucleusnucleus collisions. In this interpretation, different hadron species emerge from a common medium that has built up a strong collective velocity field. Here we show that the existence of a collective flow field implies characteristic modifications of high-pT parton fragmentation. We generalize t...

Dynamo quenching due to shear flow.

We provide a theory of dynamo (alpha effect) and momentum transport in three-dimensional magnetohydrodynamics. For the first time, we show that the alpha effect is reduced by the shear even in the absence of magnetic field. The alpha effect is further suppressed by magnetic fields well below equipartition (with the large-scale flow) with different scalings depending on the relative strength of ...

Quinine Fluorescence Quenching at Low Ionic Strength

The effect of ionic activity on the quenching of the quinine dication fluorescence by chloride and bromide ions is examined in solutions of sufficiently low ionic strength to enable ionic activities to be taken into account by means of the Debye-Hückel equation. An equation for the dependence of the Stern-Volmer constant on the ionic strength is derived in a novel way and an iterative, linear l...

Fluorescence Quenching at High Quencher Concentrations

microstructure and mechanical properties of a low alloy high carbon steel processed by quenching and partitioning process

the quenching and partitioning (q&p;) process is a new heat treatment cycle to produce the third generation of advanced high strength steels based on diffusion of carbon from martensite to retained austenite phase. the application of this process for various steels leads to a remarkable combination of mechanical properties including high strength and good ductility. using this process in automo...