climate change is a natural phenomenon that occurs in the long time scale. the most important factors that intensify climate change are changes in reflected radiation from the sun, changes in earth's orbit, greenhouse gases and continents drift. in this research the barandoezchay watershed in west azerbaijan province with an area of 1088 km2 was investigated. due to the lack of synoptic st...

This paper examines the problem of polygon digitizing, and suggests an inversion of the traditional approach for polygons of the environmental type, where each individual polygon, rather than its boundaries, is of primary interest. Many workers in geology, forestry, soil science, etc. have found the tedious specification of boundary arcs and their topological linkage and editing to be a major b...

Two data sets commonly used for geological resource assessment include bedrock geology and stream-sediment geochemistry. Traditional methods for determining relationships between these data include both qualitative and quantitative techniques. Qualitative interpretation and integration is generally based upon visual observations of spatial coincidence between the data. Quantitative results can ...

Disposal of municipal solid waste (MSW) is one the significant global issues that more evident in developing nations. One key methods for disposing MSW locating, assessing, and planning landfill sites. Faisalabad largest industrial cities Pakistan. It has many sustainability challenges problems, including management. This study uses as a case area humbly attempts to provide framework identifyin...

I study the state complexity of binary operations on regular languages over different alphabets. It is well known that if L′ m and Ln are languages over the same alphabet with m and n quotients, respectively, the state complexity of any binary boolean operation on L′ m and Ln is mn, and that of the product (concatenation) is (m − 1)2n + 2. In contrast to this, I show that if L′ m and Ln are ove...

This paper proposes a mathematical programming framew ork for combining SVMs with possibly di erent kernels. Compared to single SVMs, the advantage of this approach is tw ofold: it creates SVMs with local domains of expertise leading to local enlargements of the margin, and it allows the use of simple linear kernels combined with a xed boolean operation that is particularly well suited for buil...

Environmental criminologists are at the vanguard of a growing interest in establishing the density or intensity of crime events around locations that are the target of crime prevention activities. The traditional approach has often been to count the number of crime events within a certain distance of the target site; however, this approach is fraught with methodological concerns. In this articl...

We exhaustively investigate possible combinations of a boolean operation together with a catenation. In many cases we prove and improve some conjectures by Brzozowski. For each family of operation, we endeavour to provide a common witness with a small size alphabet.

This paper describes the derivation of an empirically ee-cient parallel two-dimensional Delaunay triangulation program from a theoretically eecient CREW PRAM algorithm. Compared to previous work, the resulting implementation is not limited to datasets with a uniform distribution of points, achieves signiicantly better speedups over good serial code, and is widely portable due to its use of MPI ...

The standard conceptual HBV model was originally developed with daily data and is normally operated on daily time step. But many floods in Slovenia are usually flash floods as result of intense frontal precipitation combined with orographic enhancement. Peak discharges are maintained only for hours or even minutes. To use the HBV model for flash flood forecasting, the version of HBV-96 has been...