Cascade Hashing is a new dynamic hashing scheme which is based on Spiral Storage. The purpose of this paper is first to give a unified exposition of Linear Hashing, Spiral Storage and other dynamic hashing schemes, and second to describe a new method for storing overflow records. The method stores the overflow records in the main file itself and clusters overflow records from each primary bucke...

Abstract. Riverine flood hazard is the consequence of meteorological drivers, primarily precipitation, hydrological processes and interaction floodwaters with floodplain landscape. Modeling this can be particularly challenging because multiple steps differing spatial scales involved in varying processes. As climate modeling community increases their focus on risks associated change, it importan...

We report the analysis of paired photon pulses arising from two cascading transitions in continuously pumped Erbium-doped YLiF$_4$ 1% and 0.01% crystals at 1.6 K. The dependence pulse peak intensity on squared number involved Erbium ions, between 10$^{11}$ 10$^{13}$, definitely identifies cooperative nature pulsed emissions, that are generated by subsequent, spontaneous formation coherent state...