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The Debye-Waller factors of amorphous polystyrene and amorphous polybutadiene have been determined from neutron time-of-flight data using two different methods. The first uses the Q-dependence (Q momentum transfer) of the elastic intensity in the conventional way. The second employs the...
Persistent link: https://www.econbiz.de/10010586377
Comparison between low frequency Raman scattering and inelastic neutron scattering of amorphous polybutadiene shows that the light-vibration coupling coefficient is linearly frequency dependent. This agrees with earlier findings and we show here that it can be interpreted employing two different...
Persistent link: https://www.econbiz.de/10010587569
Neutron scattering experiments have been performed to explore the dynamics of polymers near the glass transition. The experimental data show three distinct types of relaxations: 1.(1) Susceptibility spectra exhibit a contribution in addition to phonons around a temperature independent...
Persistent link: https://www.econbiz.de/10010587588
Incoherent inelastic neutron scattering experiments on the weakly fragile polymer glass polyisobutylene (PIB) show a fast inelastic relaxation component at temperatures exceeding the glass transition temperature, Tg = 200 K. The temperature dependence of the inelastic excess excitation is...
Persistent link: https://www.econbiz.de/10011057534
Thermal hysteresis associated with ferroelectric to paraelectric phase transition is investigated in a ferroelectric copolymer of vinylidene fluoride and trifluoroethylene, using X-ray diffraction and incoherent neutron scattering. The lattice spacing derived from the diffractograms, shows...
Persistent link: https://www.econbiz.de/10011059622
Contrary to most sports fans economists tend to view tournaments not only as a mechanism to identify the most able and most talented athlete(s) but also as an instrument to increase the athletes' effort levels by designing an adequate compensation system that takes into account the specificities...
Persistent link: https://www.econbiz.de/10005559735
We perform a theoretical and empirical analysis of the impact of transfer fee regulations on professional soccer in Europe. Based on a model on the interaction of moral hazard and heterogeneity, we show (i) how the regulations effect contract durations and wages, (ii) that contracting parties...
Persistent link: https://www.econbiz.de/10005730955
Persistent link: https://www.econbiz.de/10005687902
Persistent link: https://www.econbiz.de/10005687913
In this paper we use a novel panel data set from the German premier soccer league (Bundesliga) as a case to show how variations in managerial compensation impact positively upon organizational (team) success. Using stochastic frontier analysis, we find that a team that hires a better quality...
Persistent link: https://www.econbiz.de/10005694665