Effects of uncertainty in upper-stem diameter information on tree volume estimates

Tree Volume and Upper-stem Diameter Predictions for Planted Loblolly and Slash Pine Based on a Compatible Volume-Taper System with Segmented-stem Form Factors

evaluation of systemic effects of ginger fractions on salivation in rats

چکیده ندارد.

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

A predictive nondestructive model for the covariation of tree height, diameter, and stem volume scaling relationships

Metabolic scaling theory (MST) posits that the scaling exponents among plant height H, diameter D, and biomass M will covary across phyletically diverse species. However, the relationships between scaling exponents and normalization constants remain unclear. Therefore, we developed a predictive model for the covariation of H, D, and stem volume V scaling relationships and used data from Chinese...

Uncertainty versus variability in upper ocean carbon flux estimates

The recent article written by Moran et al. (2003) (herein referred to as M2003) poses the question whether thorium234 (234Th) provides an accurate record of particulate organic carbon (POC) export from the upper ocean. Although there is little argument that 234Th : 238U disequilibrium can be attributed to particle flux, we agree that there are still many unknowns regarding the factors that cont...