We provide the wildland urban interface (WUI) map of the autonomous community of Catalonia (Northeastern Spain). The map encompasses an area of some 3.21 million ha and is presented as a 150-m resolution raster dataset. Individual housing location, structure density and vegetation cover data were used to spatially assess in detail the interface, intermix and dispersed rural WUI communities with...

We show how untrusted computers can be used to facilitate secure mobile data access. We discuss a novel architecture, data staging, that improves the performance of distributed file systems running on small, storage-limited pervasive computing devices. Data staging opportunistically prefetches files and caches them on nearby surrogate machines. Surrogates are untrusted and unmanaged: we use end...

The multi-compartment vehicle routing problem with flexible compartment sizes is a variant of the classical in which customers demand different product types and capacity can be separated into compartments each dedicated to specific type. size not fixed beforehand but number limited. We consider two variants for dividing capacity: On one hand discretely divided on other continuously. objective ...

The apparent volume of distribution was defined for the first time as phase that can hold total amount a substance at measured concentration, in system composed two immiscible media are contact under conditions constant volumes, equilibrium. Its value is not affected by solute mass and it only depends on volume, volumes affinity phases system. Using this new concept distribution, we were able t...

We studied 11 gaps covered with beech saplings (< 1.30 m tall) in a reserve compartment (compartment 139, district one, Langa forest, watershed 36: Kazemrood) of the Caspian beech forest in N Iran. Two transects, each 2 m wide, were laid along the longest (N-S) and shortest (E-W) axis of each gap. Five micro sample plots, each 4 m2, were established: one at the center, and one at each corner. Q...