Air pollution has deleterious impacts on human health and environment. Industrial sector has always led to increase the immense challenge of controlling this atmospheric pollution. Cement industry is one of the potential ...

The collection of soil samples is labored and time consuming as well as the determination of heavy metal concentrations in laboratory was expensive. To these attempts, artificial intelligence techniques (AI) such as adaptive ...

The main purpose of this study is to deal with the magneto-gravitational convection in a layer of ferromagnetic fluids between two vertical non-magnetic plates. One of the plates is kept at constant temperature. A uniform ...

Nonlinear oscillator models have been widely used in many areas of physics and engineering and are of significant importance in mechanical and structural dynamics for the comprehensive understanding and accurate prediction ...

A perturbation method known as "the asymptotic averaging method" in the theory of nonlinear oscillations was first presented by Krylov and Bogoliubov (KB) in 1947. Primarily, the method was developed only to obtain the ...

In this thesis, an analytical technique has been developed for solving strongly nonlinear damped systems with 1/ 3 x restoring force by combining He’s homotopy perturbation method (HPM) and the extended form of the ...

Bangladesh, one of the Least Developed Asian Countries is facing very complicated situations for the management of vast quantities of municipal solid waste (MSW) generated by urban communities. Due to the absence of an ...

A modified approximate analytic solution of the cubic nonlinear oscillator “ẍ + x3 = 0" has been obtained based on an iteration method. Here we have used the truncated Fourier series in each iterative step. The approximate ...

A perturbation method known as "the asymptotic averaging method" in the theory of nonlinear oscillations was first presented by Krylov and Bogoliubov (KB) in 1947. Primarily, the method was developed only to obtain the ...

Most of the ecological and health risk occurs due to the emission of heavy metal from contaminated soil of waste disposal site. The main focus of this study was to assess the ecological risk associated with heavy metals ...