Sale of the Cherokee Reservation

49-1Indian AffairsSale of the Cherokee Reservation. [2360] In Arkansas: not, in the proper sense, an Indian reservation.1886-16

campestre

Trifolium campestre Schreberlow hop clover;lesser hop clover;large hop clover;big hop clover;hop trefoil;field clovertrèfle couché;trèfle des champsTrifolium campestrealong Ind. #67, about 3 miles north of Vincennesroadsid

Carex

Sect. of Livingstone Range, W of AGT Util. Stn (N Burmis Road)Moist shrubby patch sheltered in lee of E slope, below mid el, around spring edg

arvense

Cerastium arvense Linnaeusfield chickweed;field mouse-ear chickweed;meadow chickweed;prairie mouse-ear chickweed;starry grasswortCerastium arvenseCrandell Mountain, S. slopedamp dirt and rock6800 feetwhit

Erma Inch

Back of cabinet card photograph

The history of al-Ṭabarī. 31: The war between brothers /

Includes bibliographical references (p. [251]-255) and index

A physically based rain attenuation model for terrestrial links

This contribution presents a novel physically based approach to modeling the rain attenuation affecting terrestrial links. The model is devised by investigating the path reduction factor (PF) on terrestrial links, a typical element of rain attenuation prediction models introduced to take into due account the spatial inhomogeneity of rainfall. To this aim, a large number of PF values are analyzed by simulating the interaction of a hypothetical terrestrial link with a set of realistic synthetic rain fields. The dependence of PF on different parameters such as the path length, the operational frequency, and the rain rate measured at the transmitter is addressed, and the results are exploited to devise analytical expressions aiming to provide an accurate yet simple approach to predicting rain attenuation on terrestrial links. Finally, the prediction accuracy of the proposed method is discussed (and compared to the one of other two models) by considering experimental data collected worldwide