We employ the method of comparison equations to study the propagation of a massless minimally coupled scalar field on the Schwarzschild background. In particular, we show that this method allows us to obtain explicit approximate expressions for the radial modes with energy below the peak of the effective potential which are fairly accurate over the whole region outside the horizon. This case ca...

In this work a dynamic model of water uptake from plants growing in naturally vegetated areas subjected to a rainfall and evaporation time series is described. The model results are compared and contrasted with popular pre-existing models. Also, the effects of the uptake pattern on the movement of water across multiple soil layers are also analyzed. The results showed that contrary to common mo...

We consider the Takaysu model with desorption. Particles are deposited on the hypercubic lattice Zd. At each site individual particles arrive at rate q. The top-most particle at each non-empty site evaporates at rate p. The particles also diffuse in the manner of coalescing random walks: at rate one, the stack of particles sitting at a site is moved to a randomly chosen neighbor, joining any pa...

Intermediate mass fragments ~IMFS! ~IMF: 3<Z IMF<20) observed in coincidence with two correlated fission fragments following incomplete fusion in C1Th at E/A516 and 22 MeV are investigated. IMFs emitted prior to significant deformation of the fissioning system, as well as IMFs emitted near scission, are distinguished based upon their characteristic kinetic energy and angular distributions. The ...

Primordial black holes may form in the early Universe, for example from the collapse of large amplitude density perturbations predicted in some inflationary models. Light black holes undergo Hawking evaporation, the energy injection from which is constrained both at the epoch of nucleosynthesis and at the present. The failure as yet to unambiguously detect primordial black holes places importan...

r a 200 .008 ress: Sch unl.edu Summary A novel approach has been found to estimate the equilibrium surface temperature (Te) of wet environment evaporation (Ew) on a daily basis. Employing this temperature in the Priestley–Taylor equation as well as in the calculation of the slope of the saturation vapor pressure curve with pan measurements improved the accuracy of longterm mean evaporation (E) ...

The cross sections and velocity distributions of heavy residues from the reaction of 20 AMeV Sn + Al have been measured at forward angles using the MARS recoil separator at Texas A&M in a wide mass range. A consistent overall description of the measured cross sections and velocity distributions was achieved using a model calculation employing the concept of deep-inelastic transfer for the prima...

[1] Ice formation in atmospheric clouds is crucial to our understanding of precipitation and cloud radiative properties. In recent work it was shown that heterogeneous ice nucleation rates can be strongly enhanced by a form of surface crystallization (Shaw et al., 2005). Here we present new laboratory data and consider the implications for contact nucleation and its relevance to ice nucleation ...

High energy fluxes on first wall materials and other c~ponents are encountered in magnetic fusion devices, particularly during hard plasma disruptions. A model to predict evaporation and melting is described which contains a formulation of the evaporation kinetics based on transport theory results. The effect of vapor shielding is evaluated under the assumption that plasma ions slowed down in t...

Zur Abbildung der Schwefeldynamik in der durchwurzelten Zone des Bodens wurde das Simulationsmodell SULFONIE auf Basis des Modells HERMES entwickelt. Auf Basis der Landnutzungsdaten, der Bodendaten und der Wetterdaten berechnet das Modell SULFONIE die aktuelle Verdunstung, die Sickerwasserrate, die Mineralisation der organischen Substanz und die Verlagerung von Sulfatschwefel aus der wurzelbeei...