Helicity was calculated in Hurricane Bonnie (1998) using tropospheric-deep dropsonde soundings from the Convection and Moisture Experiment conducted by NASA. Large helicity existed downshear of the storm center with respect to the ambient vertical wind shear. It was associated with veering, semi-circular hodographs created by strong, vortex-scale, radial-vertical flow induced by the shear. The ...

We consider three theorems in ergodic theory concerning a fixed aperiodic measure preserving transformation σ of a Lebesgue probability space (X,A, μ) and show that these theorems are all equivalent. Two of these results concern the existence of a partition of the space X with special properties. The third theorem asserts that the conjugates of σ are dense in the uniform topology on the space o...

We show that (under MA) for any c many dense sets in Laver forcing L there exists a ff-centered Q Ç L such that all the given dense sets are dense in Q . In particular, MA implies that L satisfies MA and does not collapse the continuum and the additivity of the Laver ideal is the continuum. The same is true for Miller forcing and for Mathias forcing. In the case of Miller forcing this involves ...

Hurricane intensification has been studied by scientists for decades and one phenomenon that appears to always accompany the intensification is the presence of hot towers of cumulous clouds that stretches to 15 km high, touching the top of the troposphere (Figure 1a &b). The hypothesis of Hot towers was first proposed in 1958 by Riehl and Malkus (Anthes, 1999), who wrote in conclusion from thei...

In this paper we analyze a variant of the n-disk Towers of Hanoi problem with an arbitrary starting and ending configuration using transition graphs representing valid configurations. In particular, we show that starting with any configuration, there is a sequence of moves that goes through each valid configuration exactly once and back to the starting configuration. Also, we show how the origi...

111. Harris, G. & Tatchell, A. R. (1953). J. Inst. Brew. 59, 371. Partridge, S. M. (1948). Biochem. J. 42, 238. Towers, G. H. N. & Steward, F. C. (1954). J. Amer. chem. Soc. 76, 1959. Towers, G. H. N., Thompson, J. F. & Steward, F. C. (1954). J. Amer. chem. Soc. 76, 2392. Wailes, P., Whiting, M. C. & Fowden, L. (1954). Nature, Lond., 174, 130. Zacharius, R. M., Pollard, J. K. & Steward, F. C. (...

Towers, a consultant to the defense, presents an account of a homicide charge being processed against two Los Angeles physicians. At the family's request for withdrawal of life support systems, the doctors removed nasogastric and intravenous lines from a patient whose cardiac arrest after surgery resulted in severe brain damage. At the autopsy, dehydration was listed as a contributory cause o...

The collapse behaviour of the World Trade Centre (WTC) towers is considered formally as a propagating instability phenomenon. The application of associated concepts enables the residual capacities of both towers after the onset of collapse to be formally estimated. This information is combined into a simplified variable-mass collapse model of the overall dynamical behaviour. The resulting, non-...

A formal-linguistic approach for solving an entertaining task is made in this paper. The well-known task of the Hanoi towers is discussed in relation to some concepts of discrete mathematics. A context-free grammar which generate an algorithm for solving this task is described. A deterministic pushdown automation which in its work imitates the work of monks in solving the task of the Hanoi towe...

The low-frequency methods used by most utilities nowadays for measuring the resistance of transmission line ground electrodes are inaccurate or cannot be applied when overhead groundwires are connected to the towers. Moreover, many of them are costly and time consuming. This paper proposes and compares two new methods for evaluating the transient impedance of transmission line towers. Both meth...