明人“传奇”称名的观念基础及其渊源

A chemically selective laser ion source has been used in a $\beta$-decay study of heavy Ag isotopes into even-even Cd nuclides. Gamma-spectroscopic techniques in time-resolving event-by-event and multiscaling modes have permitted the identification of the first 2$^+$ and 4$^+$ levels in $^{126}$Cd$_{78}$, $^{128}$Cd$_{80}$, and tentatively the 2$^+$ state in $^{130}$Cd$_{82}$. From a comparison of these new states in $_{48}$Cd with the $E(2^+)$ and $E(4^+)/E(2^+)$ level systematics of $_{46}$Pd and $_{52}$Te isotopes and several recent model predictions, possible evidence for a weakening of the spherical $N=82$ neutron-shell below double-magic $^{132}$Sn is obtained

MCMC for Wind Power Simulation

This paper contributes a Markov chain Monte Carlo (MCMC) method for the direct generation of synthetic time series of wind power output. It is shown that obtaining a stochastic model directly in the wind power domain leads to reduced number of states and to lower order of the Markov chain at equal power data resolution. The estimation quality of the stochastic model is positively influenced since in the power domain, a lower number of independent parameters is estimated from a given amount of recorded data. The simulation results prove that this method offers excellent fit for both the probability density function and the autocorrelation function of the generated wind power time series. The method is a first step toward simple stochastic black-box models for wind generation.Electrical Sustainable EnergyElectrical Engineering, Mathematics and Computer Scienc

Voltage Source Converter (VSC) HVDC for Power Transmission - Economic Aspects and Comparison with other AC and DC Technologies

status: publishe

Beta Decay of 111^{111}Tc to 111^{111}Ru

The $\beta$-decay of the very neutron-rich $^{111}$Tc nucleus has been observed. A partial decay scheme of $^{111}$Ru is presented, complementing the high-spin levels earlier reported in spontaneous fission work

Shape coexistence near the double-midshell nucleus 111^{\bf 111}Rh

The decay of $^{111}$Ru obtained from fast on-line chemical and mass separation has been investigated by $\beta$-$\gamma$-$t$ and $\gamma$-$\gamma$ coincidence techniques. Earlier spin and parity assignments of $^{111}$Rh levels based on extrapolations of level systematics are confirmed. In particular, the K=1/2 intruder band is supported by the hindrance of E2 transitions between deformed and spherical states and enhancement of intraband E2 transitions. The excitation energies of intruder band members in Rh isotopes show a minimum at $^{109}$Rh$_{64}$, with two neutrons less than $^{111}$Rh at the N=66 midshell. This trend, which differs from the one in the higher-Z neighbouring elements Ag and Cd with minima at N=66, follows the evolution of deformation observed in the lower-Z elements Ru and Mo