In pipeline-riser systems, pressure fluctuations which result from the formation of large liquid slugs and gas surges due to operational changes or low mass flow rate from production wells and the profile of pipeline-riser systems often lead to trips at the inlet of the separator; and thereby, the problem causes a a loss of the production.In this study, on a sample deep-water oil field off the ...

BACKGROUND Various dinuclear copper (II) complexes with octahedral geometry have been reported. The majority of these complexes contain N containing aromatic rings as axial ligands. There are also a few cases where the solvent used in the reaction occupies the axial position of the dinuclear copper (II) complex. This may occur by planned synthesis or some times by serendipity. Here we report so...

the mixing behavior of the gas-liquid phase in three loop bioreactors was investigated. a gas-induced external airlift loop bioreactor (ealb), a forced-liquid vertical tubular loop bioreactor (vtlb) and a forced-liquid horizontal tubular loop bioreactor (htlb) were used for mixing studies as well as biomass production from natural gas. the effect of design parameters, riser to downcomer cross s...

We report the synthesis and X-ray structures of four Rh2(OAc)4(LAx)2 (OAc=acetate, CH3COO−) paddle-wheel complexes (C1−C4) with methylthio-modified axial ligands LAx derived from benzamidine (L1), anilinopyrimidine (L2) or isothiourea (L3, L4) that are capable forming N−H⋅⋅⋅O hydrogen bonds to equatorially bridging acetate ligands. This was done aim suppress dissociation make amenable single-mo...

The TRIμP facility, under construction at KVI, requires the production and separation of short-lived and rare isotopes. Direct reactions, fragmentation and fusionevaporation reactions in normal and inverse kinematics are foreseen to produce nuclides of interest with a variety of heavy-ion beams from the superconducting cyclotron AGOR. For this purpose, we have designed, constructed and commissi...

The TRIμP facility, under construction at KVI, requires the production and separation of short-lived and rare isotopes. Direct reactions, fragmentation and fusionevaporation reactions in normal and inverse kinematics are foreseen to produce nuclides of interest with a variety of heavy-ion beams from the superconducting cyclotron AGOR. For this purpose, we have designed, constructed and commissi...

In the title polymeric compound, [Cu2(HCO2)4(C6H12N4)] n , the Cu(II) atom is five-coordinated in a square-pyramidal geometry that is defined by four O atoms from four formate ligands and one N atom from a hexa-methyl-ene-tetra-mine ligand. The two Cu(II) atoms are separated by 2.6850 (7) Å, and together with the four formate ligands they form a paddle-wheel unit. The hexa-mine ligand uses only...

The binuclear title compound, [Cu(2)(C(7)H(4)N(3)O(2))(4)(C(3)H(7)NO)(2)], is a discrete metal-organic compound having a paddle-wheel-type structure. The Cu⋯Cu distance is 2.6366 (5) Å and an inversion center is located at the mid-point of this bond. The Cu(II) cation is coordinated by four carboxyl-ate O atoms from four 4-azido-benzoate ligands, and one O atom from a dimethyl-formamide mol-ecu...

The title compound, [Cu(2)(C(15)H(13)O(3))(4)(C(3)H(7)NO)(2)], is formed by the chelate coordination of four racemic fenoprofenate (fenoprofenate is 2,3-phenoxyphenyl propionate) anions and two dimethyl-formamide mol-ecules to two copper(II) ions, building a paddle-wheel dinuclear mol-ecule. The distorted square-pyramidal coordination of each Cu(II) atom is made up of four O atoms of the four f...