Abstract In this paper, the contemporary development in multiple input dc-dc converters are identified and examined. The quest to mitigate difficulties associated with employing renewables distribution systems electric vehicles (EVs) has yielded many new converter topologies. These topologies have easier control, lower parts count, cheaper worthy alternatives typical series or parallel connecti...

We compare the Kummer flat (resp. etale) cohomology with coefficients in smooth commutative group schemes, finite schemes and logarithmic multiplicative of Kato. will be particularly interested case algebraic tori topology. also make some computations for certain special cases base log scheme.

in this paper, we study the casimir effect of a scalar field with dirichlet boundary condition in some certain topologies. by numerical analysis we show that casimir energy is a shape-dependent quantity. we also obtain the phase transition in different topologies in which the casimir force changes from attractive to repulsive or vice versa.  eararqr