A novel dimer-tungstovanadate,(H3O)4[VW12O40Na(H2O)4]2,was hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction,IR spectr
NMR studies of some chiral 3-acyclcamphor were conducted.A complete assignment was given to 3-(4-pyridyl)carbonylcamphor by the 2D NMR technology.Assignments we
Two inference rules are discussed in boolean ring based theorem proving, and linear strategy is developed. It is shown that both of them are complete for linear
The initial-boundary value problem of the propagation of nonlinear longitudinal elastic waves in an initially strained rod is considered. The rod is assumed to
8-Hydroxyquinoline-5-sulfonic acid,covalently bound to filter cellulose,was used for preconcentrating trace rare earth element(REE) ions from complex matrices a
The nature of the model that produced Enso-like oscillation is further discussed. There are some independent parameters in almost all simple models. The nature
Tetrahydrofuran ring can be opened with acyl chlorides or anhydrides catalyzed by gallium triiodides to afford iodo esters under mild conditions in good yields.