This letter presents the design of a novel dual-mode dual-band bandpass filter that utilises TM210 and TM020 modes cylindrical cavity resonators for millimetre-wave operation when fed with standard WR-10 waveguide ports. In this manner, two selected are demonstrated as single propagation path fixed dual-passband responses without need perturbations or tuning screws. The passbands designated cen...

two yeast isolates, a4 and a5 of candida membranifuciens and one isolate, a6 of pichia guilliermondii were tested either separately or in mixture for their effectiveness against apple gray mold, caused by botrytis cinerea pres.: fr. as regards the compatibility of the biocontrol agents, it was shown that yeast isolates were compatible with each other in liquid media. results of the experiments ...

A compact tunable dual-band bandpass filter (BPF) based on substrate integrated waveguide (SIW) and defected ground structure (DGS) is investigated in this paper. The second passband can be flexibly controlled by changing the dimensions of the updown DGSs whereas the first passband is fixed. The proposed filter exhibits improved selectivity due to the introduction of four left-right DGSs genera...

A compact narrowband non-degenerate dual-mode microstrip filter with square shape cuts is presented. The structure is developed by loading the conventional non-degenerate dual-mode resonator by open circuit stubs at two opposite corners. The filter bandwidth is controlled by only decreasing the higher cutoff frequency of the conventional type. With Square shape cuts, return loss is improved. A ...

In this paper, a simple method and structure to design a dual-band bandpass filter (BPF) by using a dual feeding structure and embedded uniform impedance resonator (UIR) is presented. In this structure, two passbands can be designed individually and several transmission zeros can be created to improve the band selectivity and stopband performance. The first passband is determined by the dual fe...

The modern trickling filter typically includes the following major components: (1) rotary distributors with speed control; (2) modular plastic media (typically cross-flow media unless the bioreactor is treating high-strength wastewater, which warrants the use of vertical-flow media); (3) a mechanical aeration system (that consists of air distribution piping and low-pressure fans); (4) influent/...

This work demonstrates a microwave dual band bandpass filter using two L–shaped stepped impedance resonators (SIRs) and a coupled feed structure. The coupled feed structure can be a single sided or a double sided structure. Two sets of physical parameters are used to control the coupling coefficient and external quality factor. Thus, the specification, such as the central frequencies and the ba...

In this paper, we present a comprehensive performance study of Least Recently Used and Least Frequently Used with Dynamic Aging as traditional replacement schemes as well as for the newly proposed schemes Greedy Dual Size and Greedy Dual *. The goal of our study constitutes the understanding how these replacement schemes deal with different web document types. Using trace-driven simulation, we ...

In this paper, a miniaturized dual-band bandpass filter with high selectivity and band-toband isolation is presented. The filter consists of two quarter-wavelength stepped impedance resonators (SIRs) which share a common grounded via-hole and two symmetrical half-wavelength SIRs which are embedded into the inner space to reduce the size of the filter. Two independent mixed coupling paths which ...