Table 3 Physicochemical variables most cited in the set of 567 full-text articles.
From: EnvMine: A text-mining system for the automatic extraction of contextual information
Variable | Instances | Most common unit |
|---|---|---|
time | 9535 | min |
temperature | 7501 | degree C |
concentration | 6533 | mM |
volume | 4625 | liter |
weight | 2436 | gram |
pH | 1177 | pH |
depth | 849 | meter |
cell number | 452 | cells |
diameter | 378 | mm |
cell density | 304 | cells/ml |
area | 252 | square meter |
size | 184 | meter |
speed | 156 | rpm |
length | 99 | meter |
flux | 96 | ml/min |
pressure | 80 | mm Hg |
radioactivity | 44 | Ci |
distance | 38 | Km |
rate of temperature change | 34 | degrees C/min |
voltage | 30 | mV |
diffusion coefficient | 23 | cm2/s |
salinity | 23 | psu |
width | 21 | meter |
rate of concentration change | 20 | mol/liter day |
height | 20 | centimeters |
enzymatic specific activity | 10 | mol/h gr |