the effect of exclosure on the changes of vegetation cover of rangelands of ahmad-abad region located in zanjan province has been studied during 2002 to 2006. three transects comprises of 60 fixed quadrate were establish within exclosure area and outside as well. the changes of vegetation cover were studied to made comparison between the changes of manipulated factors and soil elements using t ...

The objective of this study was to assess the relationship betweenvegetation, landform and physicochemical properties of soil. At the first terrainmap unit were provided using the landsat thematic mapper (TM) satellite images,aerial photograph, topographical and geology map. Field sampling was done in therepresentative area using plot sampling. 104 plots 100 m2 were sampled in eachplot landform...

The input of the Test Cover problem consists of a set V of vertices, and a collection E = {E1, . . . , Em} of distinct subsets of V , called tests. A test Eq separates a pair vi, vj of vertices if |{vi, vj} ∩ Eq| = 1. A subcollection T ⊆ E is a test cover if each pair vi, vj of distinct vertices is separated by a test in T . The objective is to find a test cover of minimum cardinality, if one e...

the objective of this study was to assess the relationship betweenvegetation, landform and physicochemical properties of soil. at the first terrainmap unit were provided using the landsat thematic mapper (tm) satellite images,aerial photograph, topographical and geology map. field sampling was done in therepresentative area using plot sampling. 104 plots 100 m2 were sampled in eachplot landform...

a better understanding of rangeland vegetation cover and its variation in different years basedon wetness and droughtiness fluctuations is a great importance. economical priority setting ofrangelands is based on variations in rainfall and drought patterns, because it yields to bettercharacterization of vegetative cover. yet a comprehensive and continuous monitoring ofvegetative cover of rangela...

We design a variation of the Karp-Miller algorithm to compute, in a forward manner, a finite representation of the cover (i.e., the downward closure of the reachability set) of a vector addition system with one zero-test. This algorithm yields decision procedures for several problems for these systems, open until now, such as place-boundedness or LTL model-checking. The proof techniques to hand...

We describe the Hydra cover song detector. The system aims to solve this problem: given the reference track and a test track and no prior knowledge of the structure of the dataset, identify the reference/test pair as either a reference/cover or reference/non-cover. While this is not the specification of the MIREX audio cover song contest, we have found that the system has a 25.9% relative impro...