We show that the kinetic-energy partition method (KEP) is a particular example of the well known Rayleigh–Ritz variational method. We discuss some of the KEP results and compare them with those coming from other approaches.

We discuss a recent test of the performance of the kinetic energy partition method (KEP) through its application to two separable quantum-mechanical models. We argue that one of the benchmark models is exceedingly simple ...

In view of the particular attention recently devoted to hindered rotations, we have tested reduced kinetic energy operators to study the torsional mode around the O–O bond for H2O2 and for a series of its derivatives (HOOCl, ...

The piggery for many years was characterized as a waste-generating activity of high polluter, but in recent decades many studies are responsible for changing this concept. The use of biodigester is well disseminated to ...

Landfill appears as a convenient choice to get rid of municipal solid waste while providing energy, due to methane generated through anaerobic fermentation. However, without capture and treatment landfill gas is considered ...

Herein, the electrochemical behavior of the simetryn herbicide at the water|1,2-dichloroethane interface was investigated by cyclic voltammetry and electrochemical impedance spectroscopy. Parameters such as transfer Gibbs ...

Currently, crops such as soybeans are highly dependent on applying phosphate fertilizers. However, phosphorus (P) is a finite natural resource and proposing alternatives for P rational use is an urgent demand at a global ...

In Brazil and in some regions of the world as in Israel and in the United States, corn silages are constantly exposed to the air because of the re-ensilage process. The silage transfer between properties is a valuable ...