A scientific evaluation of the broad reciprocal influences between urbanization and eco-environment in Tibetan Plateau region is great significance for increasing speed quality as well restoring improving eco-environment. Based on a thorough look at progress made by research interactions region, this article attempts to construct complete analytical model that can achieve whole process analyzin...

The medium- and high-frequency resonance between modular multilevel converters (MMCs) the AC grid has attracted increasing attention due to frequent occurrence of events in recent years. Therefore, issues are analyzed, corresponding suppression strategies proposed this paper. First, analytical expression MMC AC-side impedance is established. Then, mechanism influencing factors different types r...

A new chromium(III) complex containing 4ʹ-hydroxy-2,2ʹ:6ʹ,2ʺ-terpyridine (tpyOH) has been prepared by the reaction of CrCl3. 6H2O with tpyOH in the presence of metallic zinc to afford the new complex [CrCl3(tpyOH)] (1). The complex 1 was used as a suitable precursor for the preparation of Cr2O3 nanoparticles by the simple calcination method at three different annealed temperatures of 400, 600, ...

The endometrium is a highly dynamic tissue empowered with the capacity to undergo cyclic dramatic changes in response to ovarian steroid hormones, ultimately aiming to create a window of receptivity for blastocyst implantation. Intensive research has been performed to understand and establish morphological and molecular correlates of embryo implantation. However, it still remains a biological m...

Two new nano particles of copper (II) and nickel (II) complexes, [Cu(cd5Clsalen)] (1) and [Ni(cd5Clsalen)] (2) with unsymmetrical tetradentate Schiff base ligand cd5Clsalen={methyl-2-[N-[2-(2-hydroxy-5-choloro-2phenyl) methylidynetrilo]ethyl}amino-1-cyclopentenedithiocarboxylate, were synthesized by hydrothermal method. These compounds were characterized by a variety of physic-chemical techniqu...

A catalyst system for the preparation of biaryls containing four ortho substituents via Suzuki coupling is described. The combination of a catalytic quantity of Pd2(dba)3 with either an electron-rich biarylphosphine or DPEPhos is effective using a wide range of substrates. The X-ray crystal structure of (dba)Pd(2-(9-phenanthryl)phenyl-dicyclohexylphosphine), in which the Pd is coordinated to th...

The chemistry of metal cyclopropenyl complexes derived from deprotonation of cationic ruthenium vinylidene complexes is reviewed. Such a metal coordinated cyclopropenyl ligand can be used for the preparation of heterocyclic compounds. The chemical reactivity of cyclopropenyl complexes is influenced by the nature of substituents on the three-membered ring and by the nature of ancillary ligand ar...

The preparation of a family of bis(imido) uranium(VI) complexes stabilized by mono- and bidentate pyrrolyl ancillary ligands is described. X-ray crystallographic studies of dipyrrolylmethane (dpm) derivatives show that the pyrrolyl coordination mode in these uranium(VI) ions is unexpected in comparison to analogous transition metal and lanthanide chemistry. The ability of the coordinated pyrrol...

This official FAO document is the result of the joint effort of many contributors. Its preparation was coordinated and the text of the draft document finalized by Andrea Sonnino, Senior Agricultural Research Officer in FAO's Research and Extension Division, in collaboration with John Ruane from the ABDC-10 Secretariat. Lead consultant for drafting of the document was Charles Spillane from the N...