Krishna Challa

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carefully and patiently prepared several drafts and the cover for this paper. The findings, interpretations, and conclusions expressed in this paper are entirely those of the author(s) and should not be attributed in any manner to the World Bank, to its affiliated organizations, or to members of its Board of Executive Directors or the countries they(More)
Acknowledgement This paper is a product of the Private and Financial Sector Development Department, Europe and Central Asia Region (ECSPF). The paper was sponsored by the Debt Market Thematic Group in the Finance Sector Vice Presidency (FSEVP) of the World Bank, as part of the preparation of a Manual on Domestic Debt Markets Development – The Policy Issues.(More)
A system Is presented that combines the automated planning and. optimization functions in machining processes. The planning function is performed by a systematic analysis of the stated requirements of the finished part in the light of information on available machining facilities and raw materials. The optimization phase utilizes a mathematical programming(More)
Taking into consideration of the biological activity of betulinic acid derivatives containing a oxadiazole ring, the semisynthetic betulinic acid-1,2,4-oxadiazole esters (14-25) were synthesized starting from betulinic acid (1) and 5-(bromomethyl)-3-aryl-1,2,4-oxadiazoles (2-13) and final compounds were tested for cytotoxic activity on three human cancer(More)
This paper attempts to provide a unified framework that takes into account various aspects of the oil and natural gas exploratory process such as the depletion of the resource base with time, uncertainty in drilling, changing economic incentives and the joint product aspects of the oil and gas exploration. The equilibrium in the market for oil and natural(More)
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