The optical light curve of the quasar PG 1302-102 at z = 0.278 shows a strong, smooth 5.2 yr periodic signal, detectable over a period of ∼ 20 yr. Although the interpretation of this phenomenon is still uncertain, the most plausible mechanisms involve a binary system of two supermassive black holes with a subparsec separation. At this close separation, the nuclear black holes in PG 1302-102 wil...

The essence of the “Supercritical Pile” model is a process for converting the energy stored in the relativistic protons of a Relativistic Blast Wave (RBW) of Lorentz factor Γ into electron – positron pairs of similar Lorentz factor, while at the same time emitting most of the GRB luminosity at an energy Ep ≃ 1 MeV. This is achieved by scattering the synchrotron radiation emitted by the RBW in a...

-A methad is presented to identify time lags present in systems described by linear, stochastic dynamical models nsuaUy enconntered in process control. 'zhe model equation is fii disaetized and converted into a non-time-delayed form: a two-stage estimator is then proposed to identify the model parameten. Manuscript received August 12, 1977. K. K. Biswas is with the Department of Electrical Engi...

Hörtnagl, L., (2021). DYCO: A Python package to dynamically detect and compensate for time lags in ecosystem series. Journal of Open Source Software, 6(62), 2575, https://doi.org/10.21105/joss.02575

Time series forecasting by fuzzy inference systems based on optimal non-uniform attractor embedding in the multidimensional delay phase space is analyzed in this paper. A near-optimal set of time lags is identified by evolutionary algorithms after the optimal dimension of the reconstructed phase space is determined by the FNN (false nearest neighbors) algorithm. The fitness function is construc...

The Chinese real estate industry has experienced rapid growth since China’s economic reform. Along with a booming industry, a third of purchased lands were left undeveloped in the last decade. Knowledge of real estate development time lags between land being purchased and property being occupied can enable policymakers to produce more effective policies and regulations to guide the real estate ...