Bird count data for southeastern Minnesota were used to compare landscape metric values associated with the occurrence of species from two functional groups. Four forest interior dependent and four non-interior dependent species were assessed. Species included American redstart, Cerulean warbler, Least flycatcher, Woodthrush, Bluewinged warbler, Indigo bunting, Ruby-throated hummingbird, and Wa...

This study is on the role of synchronous and asynchronous dispersals in a discrete-time single-species population model with dispersal between two patches, where predispersal dynamics are compensatory or overcompensatory and dispersal is synchronous or asynchronous or mixed synchronous and asynchronous. It is known that single-species dispersal-linked population models behave as singlespecies s...

Often landscape metrics are not thoroughly evaluated with respect to remote sensing data characteristics, such as their behavior in relation to variation in spatial and temporal resolution, number of land cover classes or dominant land cover categories. In such circumstances, it may be difficult to ascertain whether a change in a metric is due to landscape pattern change or due to the inherent ...

Gear’s normal contact stiffness played an important role in the mechanical equipment. In this paper, the M-B fractal model is modified and the contact surface coefficient is put forward to set up the fractal model, considering the influence of friction, which could be used to calculate accurately the involute arc cylindrical gears’ normal contact stiffness based on the fractal theory and Hertz ...

In this paper, a filtering antenna based on metasurface is designed using slot-coupled feeding, and the unit fractal pattern. Replacing rectangular patch with can introduce radiation zero point upper sideband of antenna, thereby enhancing selectivity. addition, current reversed by loading shorting pin, also introduced in lower sideband. After measurement, -10 dB impedance bandwidth 23.6% (3.22-...

analysis of food surfaces is of interest because many processes depend on their complexity. food surfaces show several textural characteristics related to their nature, composition and processing. food surface images and their microscopic details need to be translated into numerical data before engineering analysis. fractal geometry is a novel concept to describe the complexity of natural shape...