str[:-1] df['Bonus'] = df['Bonus'].astype(float) # Apply the mask logic and convert to int df.loc[ks, 'Bonus'] = df.loc[ks, 'Bonus'] * 1000 df.loc[ps, 'Bonus'] = df.loc[ps, 'Total'] * df.loc[ps, 'Bonus'] / 100 df['Bonus'] = df['Bonus'].astype(int...
Using meteorological data and mathematical statistics analysis,we take Jungar Banner in the northern farming-pastoral region of China for example,to analyze the fluctuations in the precipitation and average temperature in Jungar Banner during the period 1961-2009.We calculate the NPP of agricultural ...
And in another effort to calculate the age of the planet, scientists turned to the rocks that cover its surface. However, becauseplate tectonicsconstantly changes and revamps the crust, the first rocks have long since been recycled, melted down and reformed into new outcrops. ...
The Hartmann60 model production function and the Michael59 chronology function were used to calculate an overall age of 3.65 ± 0.01 Ga for the sedimentary wedge (i.e., Late Noachian60). wdehnesrietyh(w1i0s0t0h kegr/emlie3f).inThmeseeteersst(im~3a5te0s0 omf to ~...
sand, silt and clay percentages. A further 83 studies that did not provide enough information to calculate USDA soil texture classes reported some other form of description of the soil type, whilst 37 studies failed to report any description of the soil at the study site....
A process-based model was used to simulate the wood biomass of T. cordata Greenspire and calculate its ecosystem services [33,34]. On the basis of the basic measurements of trees (e.g., DBH (diameter at breast height) and tree height), climate and soil data, this model consists of sev...
We applied three newly established yield tables together with allometric biomass functions, turnover of leaves, (fine and coarse) roots, and branches to calculate net primary production (NPP). We then estimated heterotrophic respiration (Rh) using a number of empirical relationships [54]. Finally,...
Yamada’s model [115] for the piezoelectric charge constant was used to calculate the polarization ratio, α of the PZT particles as a function of voltage and effective piezoelectric strain coefficient. The dispersion of PZT and MWCNTs within the epoxy matrix was observed via micrographs of the ...
In this study, Sentinel-2 images are utilized to calculate the NDVI (Normalized Difference Vegetation Index) and NDWI (Normalized Difference Water Index) within the Beijing Fifth Ring Road. In this study, OpenStreetMap (OSM) road network and POI data were utilized to identify UFZs. Road ...
In this study, spatial overlay analysis of land use change, NDVI change and residual change between 2000 and 2020 was used to calculate the extent of contribution of different land use changes to vegetation cover change (Table 3). The results showed that the largest contribution to NDVI change...