in this research, active capacitance circuit and the feature of negative resistance are analysed in details. also, a new active filter is presented based on active capacitance circuit. for simulations, we used matlab and advanced design system(ads). proposed active filter (rf) is a narrow band filter. the results of simulation shows some aspects of sustainability and low noise feature. the circ...

Nonlinear electrical properties, such as negative differential resistance (NDR), are essential in numerous circuits, including memristors. Several physical origins have been proposed to lead the NDR phenomena semiconductor devices over last more than half a century. Here, we report behavior formation randomly oriented graphenelike nanostructures up 37 K and high on-current density ${10}^{5}\pha...

background and objective: antibiotic resistance is increasing, especially in healthcare-associated infections causing significant public health concerns worldwide. national information is required to make appropriate policies, update list of essential drugs for treatment, and evaluate the effects of intervention strategies. a nationwide surveillance of antimicrobial resistant bacteria in nosoco...