the most precise and simple method of evaporation measurement is application of pans in which class a pan is used in iran. in contrast, there are many empirical methods which are used for estimating the evapotraspiration. in this study, thornthwaite method was used due to the simplicity of its parameters and then we tried to use it for evaluating evapotranspiration by changing it's paramet...

The crystal structure of LiMg(H(2)O)(2)[BP(2)O(8)]·H(2)O consists of tubular structural units, built from tetra-hedral (∞) (1){[BP(2)O(8)](3-)} borophosphate ribbons and (LiO(4))(n) helices running along [001], which are inter-connected by MgO(4)(H(2)O)(2) octa-hedra, forming a three-dimensional network structure with one-dimensional channels along [001] in which the water mol-ecules are locate...

The title compound, C(6)H(6)N(2)O(3)·H(2)O, crystallizes with two formula units in the asymmetric unit. The mol-ecules are essentially planar with the nitro groups twisted slightly out of the ring planes [maximum deviations from the ring plane of 0.13 (2) and 0.22 (2) Å in the two mol-ecules]. The respective O-N-C-C torsion angles are 6.0 (4) and 12.5 (4)°. In the crystal structure, mol-ecules ...