The Kalman filter assimilation technique is applied to a simplified soil moisture model for retrieval of the soil moisture profile from near-surface soil moisture measurements. First, the simplified soil moisture model is developed, based on an approximation to the Buckingham–Darcy equation. This model is then used in a 12month one-dimensional field application, with updating at 1-, 5-, 10-, an...

Selection silviculture has become increasingly common for longleaf pine management, yet questions remain regarding residual canopy effects on seedling survival and growth. To determine what levels of residual overstory promote adequate seedling recruitment, 600 containerized longleaf pine seedlings were planted on two sites during the 2007-2008 dormant season. To differentiate overstory from un...

The current regulatory trend towards accepting intrinsic bioremediation as a long-term management scheme for residual organic pollutants in the subsurface for fuel spills is based on statistical evaluations of plume behavior for a limited array of pollutants. The effectiveness of intrinsic bioremediation towards protecting water supplies, and hence human health, is not known for many pollutants...

Investigation of the removal of cellular water, previously unexamined in freezedrying of microorganisms, and of its direct effect upon cell survival during the drying process have been made using some newly devised technical means. A thin layer of a highly concentrated cell suspension of Escherichia coli in deionized water was frozen in a specially designed ampoule and dried at different temper...

The pyrolysis and oxidation kinetics of distillers grains and solubles were determined using thermogravimetric analysis. The starting temperature of pyrolysis and oxidation of distillers grains and solubles increased with the increase of heating rate and initial moisture content. The pyrolysis and oxidation of distillers grains and solubles were completed at 650°C and 850°C, respectively, which...

The article is devoted to the experimental study of residual moisture content in semi-finished leather process roller pressing. An empirical dependence obtained that describes as a power function load intensity, diameters and speeds. It was found with decrease speeds rollers, an increase decreases. revealed best effect intensity observed squeezing machines low small diameters. All other things ...

In this study, the drying kinetics of granular nylon-6 has been investigated. Single particle drying experiments were carried out in a magnetic suspension balance (MSB) using dry air as drying agent. The comparison of measured and simulated data using Vrentas-Duda diffusion model shows a satisfactory prediction of mean particle moisture content and drying rates. The Flory-Huggins model predicts...