The pumped storage unit has a hump area and S characteristics during operation. operating conditions of the are complex, it is necessary to switch between working conditions. frequently crosses characteristic area, thus hindering connect grid. Severe vibration affects safe stable operation power station. With joint efforts industry, impact S-shaped problems on project commissioning been fundame...

The asymmetric unit of the title compound, [K(C12H24O6)(C4H8O)2][Co(C14H10)2]·C4H8O, consists of one cationic potassium complex, one anionic cobalt dianthracene complex and one tetra-hydro-furan solvent mol-ecule. The potassium cation is situated at the centre of an 18-crown-6 mol-ecule and between two tetra-hydro-furan mol-ecules, the latter coordin-ating above and below the mean plane formed ...

In the title compound, C(18)H(13)BrN(4)O(3)S(3), the tetra-hydro-pyridine ring adopts a half-chair conformation with the central methyl-ene-C atom of the NCH(2)CH(2) unit at the flap. The dihedral angles between the tetra-hydro-pyridine ring and the pyridine and two thio-phene rings are 69.34 (13) 5.66 (13) and 68.63 (13)°, respectively, while the dihedral angle between the 1,3,4-oxadiazole and...

A new model to deal with the short-term generation scheduling problem for hydrothermal systems is proposed. Using genetic algorithms (GAs), the model handles simultaneously the subproblems of short-term hydrothermal coordination, unit commitment, and economic load dispatch. Considering a scheduling horizon period of a week, hourly generation schedules are obtained for each of both hydro and the...

this paper presents a simplifiedlagrangian multiplier based algorithm to solve the fixed head hydrothermalscheduling problem. in fixed head hydrothermal scheduling problem, waterdischarge rate is modeled as quadratic function of hydropower generation andfuel cost is modeled as quadratic function of thermal power generation. thepower output of each hydro unit varies with the rate of water discha...

In the title compound, C(26)H(24)N(2)O(2)S, the dihedral angle between the thia-zole ring and the adjacent phenyl ring is 3.02 (15)°. The N-containing six-membered ring of the tetra-hydro-isoquinoline unit adopts a half-chair conformation. The dihedral angle between the least-squares plane of the tetra-hydro-isoquinoline ring system and its nearest phenyl ring is 76.90 (13)°. No classical hydro...

The structure of the title compound, [MnCl(2)(C(5)H(10)O(2))(2)], was solved from low-temperature data collected at 100 (2) K. The asymmetric unit contains one half-mol-ecule with the Mn(II) ion located on a twofold axis. A distorted octa-hedral environment around the Mn atom is formed by two ether and two hydroxyl O atoms of two 2-(hydroxy-methyl)tetra-hydro-furan ligands, and by two chloride ...

The title compound, C(19)H(17)N(3)O(2), was obtained from fruits of Evodia Rutaecarpa. In the solid state, the dihedral angle between the 2,3,4,9-tetra-hydro-1H-pyrido[3,4-b]indol-1-one (tetra-hydro-β-carbolinone) unit and the benzoyl ring is 61.46 (3)°. In the crystal, dimers are formed through inter-molecular N-H⋯O hydrogen-bonding inter-actions. In addition, intra-molecular N-H⋯O hydrogen bo...