The new Mechanistic-Empirical Pavement Design Guide (MEPDG) uses the subgrade resilient modulus (MR) as key input parameter to represent soil behavior for pavement design. increases with an increase in confining pressure, whereas, deviatoric stress, it granular soils and decreases fine-grained soils. value of MR is highly stress dependent, state (i.e., bulk stress) a function position materials...

Methane production from enteric fermentation in cattle is one of the major sources of anthropogenic greenhouse gas emission in the United States and worldwide. National estimates of methane emissions rely on mathematical models such as the one recommended by the Intergovernmental Panel for Climate Change (IPCC). Models used for prediction of methane emissions from cattle range from empirical to...

An overview of radiotherapy (RT) induced normal tissue complication probability (NTCP) models is presented. NTCP models based on empirical and mechanistic approaches that describe a specific radiation induced late effect proposed over time for conventional RT are reviewed with particular emphasis on their basic assumptions and related mathematical translation and their weak and strong points.

Mechanistic representations of biogeochemical processes in ecosystem models are rapidly advancing, requiring advancements model evaluation approaches. Here we quantify multiple aspects functional performance to evaluate improved process models. We compare semi-empirical stomatal with hydraulic constraints against more mechanistic and functioning at a semi-arid pine site using suite metrics anal...

Systems biology is an important approach for deciphering the complex processes in health maintenance and the etiology of metabolic diseases. Such integrative methodologies will help better understand the molecular mechanisms involved in growth and development throughout childhood, and consequently will result in new insights about metabolic and nutritional requirements of infants, children and ...

Abstract Topoclimatic models use topographic descriptors (elevation, slope, aspect, landscape position...) as primary input to build climatic surfaces that describe spatial and temporal patterns of such physical factors as temperature, incoming solar radiation (insolation), precipitation, soil moisture, and evapotranspiration. Topoclimatic habitat models translate these physical factors into in...

The coefficient of thermal expansion (CTE) of a typical concrete-paving mixtures made with six different types of coarse aggregates, obtained from fifteen different sources in Wisconsin, was determined. These aggregates belonged to the basic class of glacial gravel, quartzite, granite, diabase, basalt, and dolomite. A total of fifteen different concrete mixtures were used in this study. Triplic...