Concentrator cell methodology in the regeneration and recycle of chromium etching solutions using membrane technology

The regeneration of chromium (VI) and the recovery of etched copper from chromium etching solutions by electrodialysis is improved by the addition of a concentrator cell, using ion exchange resins or activated carbon cloth as concentrator media, in the catholyte chamber. The maximum percentages for the regeneration of chromium and recovery of copper in these systems is however less than 80 and 90% respectively because of the competition between the processes of oxidation of Cr(III) and electrodeposition of copper. A novel combination of electrolysis with electrodialysis and concentrator cell technology is developed that achieves 92.1% chromium regeneration and 90.4% copper recovery.EPSRC/DTI through the Link WMR03 programme and to Fluid Dynamics International Ltd. for financial support

Peak effect in CeRu2_2:history dependence and supercooling

We present experimental results on single crystal CeRu$_2$ showing that the extent of history dependence of peak-effect depends on the path followed in the space of field (H) and temperature (T). The (H,T) regime over which history effect is observed is larger if the vortex lattice is prepared by lowering T from above T$_C$ in constant H i.e. by field cooling. We compare this history effect with the very recently reported history dependence of peak-effect in detwinned single crystals of YBaCuO, highlighting the similarities and differences. We discuss the possibility of a first order vortex solid-solid transition in CeRu$_2$ within the realm of recent theoretical developments in the field of vortex matter.Comment: 21 pages, 5 figures; submitted to Phys. Rev. B on 9th Feb. 200

Salaried Strata Investment Behavior Towards Financial Products-review and Prospects for Future Research

The financial surface of the globe at all times reveals a weirdly balanced impact of the public investment preferences, their understanding of the investment requirements, their anticipation of returns on their investments etc. Perhaps forecasting the growth of the business world would be crucial without an opposite comprehension of the investment behavior of the key part of the society called salaried class. This paper covers appraisal of various financial instruments like equity/stocks, term deposits in banks, kisan vikas patra, national savings certificate, insurance policies, mutual fund and converse the factors persuading investment decision process. The major factors influencing the financial investment behavior are demographic factors (like age, income, qualification, gender, etc.) and socio-economic factors (like family income, tax benefits, the safety of fund, risk inclination, return on investment). This study aims to serve a channel to the need for a comprehension of the financial objectives of the salaried class investors with that of their determined desire for the investment returns. Certainly, this information could unwrap the prospect of predicting even the future of Indian Economy itself besides, providing span to fine-tuning the investment prudence of the public towards progressive and fruitful choices for themselves and the nation