In spatial database, geographic information system (GIS) technology and system engineering theory, the hydro-ecological spatial database was built, and the corresponding hydro-ecological spatial database management information system was designed and developed. From aspects of the data organization and classification, the overall structure of the database, database construction processes and da...

In the title compound, C22H24N2O6, the indole ring has a twist conformation and the tetra-hydro-2H-pyran-2-one ring a half-chair conformation. One of the pyrrolidine rings adopts an envelope conformation on the N atom, while the other has a twist conformation; the 'butterfly' angle between their mean planes is 62.98 (11)°. The dioxolane ring adopts a twist conformation and the tetra-hydro-furan...

The title compound {systematic name: 1-[(1R,4aS,10aR)-7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octa-hydro-phenan-thren-1-yl]-N,N-di-methyl-methanaminium chloride ethanol monosolvate}, C22H36N(+)·Cl(-)·C2H6O, was synthesized from dehydroabietylamine by N-methyl-ation with formaldehyde/formic acid and transformation into the hydro-chloride. The de-hydro-abietyl moiety exhibits the usual conf...

The title compound, C33H35N3O5, is the product of the multicomponent condensation of 1-benzyl-4-eth-oxy-carbonyl-piperidin-3-one with 1,5-bis-(2-formyl-phen-oxy)-3-oxapentane and ammonium acetate. The mol-ecule comprises a penta-cyclic system containing the aza-14-crown-4-ether macrocycle, tetra-hydro-pyrimidine, tetra-hydro-pyridine and two benzene rings. The aza-14-crown-4-ether ring adopts a...

s: -Most of the small hydro power plants are based on Run of River scheme, implying that they do not have any water storage capability. The power is generated only when enough water is available from the river. When the stream flow reduces below the design flow value, the generation will reduce as the water does not flow through the intake structure into the turbine. Small hydro plants may be s...

Prasugrel {systematic name: 5-[(2-cyclo-propyl-carbon-yl)(2-fluoro-phen-yl)meth-yl]-4,5,6,7-tetra-hydro-thieno[3,2-c]pyridin-2-yl acetate}, C(20)H(20)FNO(3)S, is a new third-generation thienopyridine which was recently approved for clinical use as a more potent blocker of the platelet P2Y(12) receptor than clopidogrel, which was previously used for this purpose. The mol-ecule features a tetra-h...

A hydrogenerator’s cost price is considerably influenced by the used and computed design values. The most important parameters in the design of micro hydro power plants synchronous generators are the power blanket, the current density in the statoric winding and the air gap size. In this work we analyze the impact of these parameters on the cost price for a family of hydro power plant synchrono...

The development of fluorescent probes for superoxide and the hydroxyl radical is a central problem in the field of chemical biology. Superoxide and the hydroxyl radical play a significant role in a variety of inflammatory diseases, and probes that can detect these reactive oxygen species (ROS) have tremendous potential as medical diagnostics and research tools. Fluorescent sensors for superoxid...

In the title complex, [PdBr(2)(C(13)H(18)N(2))(2)], the Pd(II) atom is situated on an inversion center. The tetra-hydro-pyrimidine group of the N-(2,4,6-trimethyl-phen-yl)-1,4,5,6-tetra-hydro-pyrimidine ligand is twisted from the square (PdN(2)Br(2)) coordination plane with a C-N-Pd-Br torsion angle of 81.8 (4)°; this is different from the angle of 43.47 (14)°, reported in a closely related str...