A slotted meander line printed monopole antenna for low frequency applications at 878 MHz is presented. The operating frequency of the conventional printed monopole antenna was greatly reduced by the presence of the slots and meander line which lead to the reduction of the antenna size. The size reduction up to 70% compared to the conventional reference antenna is achieved in this study. The an...

We have studied the magnetic-field dependence of both dark-count rates and photon-count rates in a superconducting nanowire single-photon detector made of TaN in external magnetic fields |μ0H| < 10 mT perpendicular to the plane of the underlying meander structure and at T = 4 K. The dark-count rates show a characteristic field-dependence, which is asymmetric with respect to magnetic field direc...

Standing meanders are a key component of the Antarctic Circumpolar Current (ACC) circulation system, and numerical studies have shown that these features may locally enhance subduction, upwelling, as well lateral vertical tracer transport. Yet, observational data from regions remain sparse. Here, we present results based on measurements made by group autonomous platforms sampling an ACC standin...

meanders are among the important characteristics of some rivers that flow in semi-arid regions. swift displacement along the river&apos;s flow, change in the location of the central ridge and bank erosion leateral erosion are resulted from making meander in the river&apos;s flow. meanders in river courses on north east slopes of sahand (located in 46ëš 43ì to 47ëš 15ì e and from 36ëš 05ììì...

The main objective of a meteorological nowcasting system is to analyse and predict in ultra-short range those weather phenomena, which might be dangerous for life and property. The Hungarian Meteorological Service developed a nowcasting system (MEANDER), and its most computational intensive calculations have been parallelised by means of P-GRADE graphical programming environment. In this paper ...

A meander is observed in collective motion of some kinds of organisms, for exmaple, a school of fishes and a flight of bats. It is interesting problem to explore why such a motion emerges. In order to investigate the dynamics of organisms, we adopt a two dimensional optimal velocity model, which has been proposed as a dynamical model for the pedestrian flow. Some features in the pedestrian flow...

The notion of a meander is introduced and studied. Roughly speaking, a meander is a sequence of integers (drawn from the set N= {I, 2, . . . . n}) that wanders back and forth between various subsets of N a lot. Using Ramsey theoretic proof techniques we obtain sharp lower bounds on the minimum length of meanders that achieve various levels of wandering. We then apply these bounds to improve exi...

A uniplanar, compact electromagnetic band-gap (UC-EBG) structure based on modified semi-Spidron fractal and meander-line strip (SFM-EBG) patterning is proposed. The semi-Spidron frac-tal geometry significantly increases the equivalent capacitance, whereas meander-line strips increase the equivalent inductance; as a result, the proposed design can be used to successfully miniaturize an EBG struc...

We propose a design theory of the miniaturized high temperature superconducting (HTS) coplanar waveguide (CPW) bandpass filter (BPF), which is composed of meanderline quarter-wavelength resonator, Jand K-inverters. The Jand K-inverters are realized by using interdigital gap and meander-shape inductor. To evaluate the kinetic inductance of the K-inverter, we fabricate the YBCO resonator connecte...