Bücher von Prerna Sharma

Sewage Treatment Plants (STP¿s) are designed and constructed with an aim to manage wastewaterso as to minimize or remove organic matter, solids and other pollutants before it enters a waterbody. Although a lot of work has been carried out regarding STP Performance evaluation withdifferent technologies by various researchers, but not much emphasis has been given ondevelopment of regression model of Biochemical Oxygen Demand (BOD) removal efficiency forActivated Sludge Process (ASP), Extended Aeration (EA) and Densadeck/BIOFOR. Hence thisresearch work will emphasis on the comparative performance analysis of STP¿s along with theabove-mentioned technologies used for the treatment of sewage. Development of regression modelfor the same can help in deciding that which technology will be better suited for treatment of whichcomposition of wastewater. The models obtained will further help in deciding the combination ofthe above-mentioned technologies which can be used to optimise the desired output in variousindustries. Different attributes of assessing the performance of the STP¿s working on differenttechnologies are taken into consideration and at the final stage of the research work.

The approximation of functions by algebraic polynomials, trigonometric polynomials and splines, is not only an important topic of mathematical studies but also provides powerful mathematical tools to represent non-arithmetic quantities by arithmetic quantities to achieve the accuracy to a desired degree. The role of linear positive operators is very important in the approximation theory. The theorem given by Weierstrass is the basis of theory of approximation for the functions of real variable and has huge importance in the whole of mathematical analysis.The main purpose of this book is to study the some problems in approximation by linear positive operators. We estimate the rate of convergence for these operators for functions having derivatives of bounded variation. We also studied the new type of Stancu generalization of modified Beta operators and established some moments and recurrence relations as well as study some approximation properties and asymptotic formula for the above operators which gave some better error estimations for the operators by using King's approach. We also find an asymptotic formula and error estimate in terms of higher order modulus of continuity.