The results of a theoretical study of the formation and growth of the submicron flyash aerosol around a single burning coal particle are presented. The vaporization of ash and subsequent aerosol formation near the coal particle are studied because the local combustion environment influences these proewes strongly. A mathematical model is developed that describes the transport of ash vapor and a...

Three mathematical models, the runoff curve number equation, the universal soil loss equation, and the mass response functions, were evaluated for predicting nonpoint source nutrient loading from agricultural watersheds of the Mediterranean region. These methodologies were applied to a catchment, the gulf of Gera Basin, that is a typical terrestrial ecosystem of the islands of the Aegean archip...

1 The observed sea surface temperature (SST) in the Southern Ocean shows a 2 substantial warming trend for the second half of the 20th century. Associated with the 3 warming, there has been an enhanced atmospheric hydrological cycle in the Southern 4 Ocean that results in an increase of the Antarctic sea ice for the past three decades through 5 the reduced upward ocean heat transport and increa...

Most quasi-static variational models of fracture are based on the splitting of the energy functional into the sum of two terms: bulk, depending on the displacement gradient, and surface, depending on the displacement discontinuities. In this paper we consider the simplest one-dimensional problem of this type, a bar stretched by a given axial displacement, and systematically compare two alternat...

[1] Droughts over the central United States (US) are modulated by sea surface temperature (SST) variations in the eastern tropical Pacific. Many models, however, are unable to reproduce the severity and spatial pattern of the ‘‘Dust Bowl’’ drought of the 1930s with SST forcing alone. We force an atmosphere general circulation model with 1930s SSTs and model-generated dust emission from the Grea...

Dendrimers and other three-dimensional molecular assemblies are attractive scaffolds for biological delivery agents and diagnostic probes due to their globular shape, modular structure, monodispersity, and plurality of functional end groups. To address this potential, a number of strategies and related dendritic architectures have been developed for delivery of bioactive molecules to desired ce...

an analytical nonlinear stress-strain model and a microscopic damage index for confined and unconfined concretes together with a macroscopic damage index for reinforced concrete (rc) structures under cyclic loading are proposed. in order to eliminate the problem of scale effect, an adjustable finite element computer program was generated to simulate rc structures subjected to cyclic loading. by...