this paper tries to systematically survey, with taking theoretical view on geomorphic basin and its changes into account. the purpose of this research is to determine the balance and stability of geomorphic basins from the past to present and then to future. consequently, it tries to determine the balance between energy and input-output materials for example (rainfall , solar radiation, tectoni...

Electromechanical switching in fullerene C60 nanochains, introduced the device as a pyrrolidine tris-acid (CPTA) film, was realized nanogap electrodes with ∼20 nm separation. Unlike microscale channels, conductive chain spontaneously formed without electron beam irradiation. The initial current flow likely due to hopping through CPTA molecules. A higher voltage generated nonlinear and caused ra...

this paper concerns the problem of robust stabilization of uncertain fractional-order non-autonomous systems. in this regard, a single input active control approach is proposed for control and stabilization of three-dimensional uncertain fractional-order systems. the robust controller is designed on the basis of fractional lyapunov stability theory. furthermore, the effects of model uncertainti...

the benefits of textual input enhancement in the acquisition of linguistic forms have produced mixed results in sla literature. the present study investigates the effects of textual enhancement on adult foreign language intake of two english linguistic forms-subjunctive mood and inversion structures-to explore the role of the type of linguistic items in input enhancement studies. it also invest...

the study compared economic efficiency among smallholder farmers who practiced low external input technology [leit] and high external input technology [heit] agriculture in a harsh macroeconomic environment typified by inadequate fertilizer subsidy in imo state, nigeria. cross sectional data generated from 160 smallholder farmers randomly selected from 2 out of the 3 agricultural zones in imo s...

According to the great importance of safety in aerospace industries, identification of dynamic parameters of related equipment by experimental tests in operating conditions has been in focus. Due to the existence of noise sources in these conditions the probability of fault occurrence may increases. This study investigates the effects of noise in the process of modal parameters identification b...