Certain Generalisations of Bartholomew's Problem in Life Testing

Certain generalisations of the Bartholomew's problem in Life testing have been discussed namely when a number of items are placed on test at different times, when the life of times follows normal distribution and when items with two components are placed on test

Thorium(IV) and Zirconium(IV) Complexes of Oxygen Donor Ligands, Part XI. Oxozirconium(IV) Complexes of Hexamethyl Phosphoramide

A series of new complexes of the type ZrOX2(HMPA)n (n = 2 for X = N03, Cl, Br, I, BPh4, NCS; n = 6 for X = Cl04) are described. The coordination number of the zirconium was found to be 5 or 7 depending on the nature of anion X

Optimum Trajectories with Specified Transfer Angle

Inter-orbital optimum trajectories with specified transfer angle in an inverse square gravitational field have been analysed. Criterion of optimization adopted is minimum velocity increment in the entire transfer operation with one impulse each at the initial and final terminal. Particular cases of the above problem are discussed and as a numerical illustration, results are obtained for transfer trajectories between two orbits in Earth's gravitational field

Studies on Some New Triphenylgermanium(IV) Dithiocarbamates

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