The r-Bell number ^Br(G) of a simple labeled graph G is the number of partitions of its vertex set whose blocks are independent sets of G where the _rst r-vertices are in di_erent blocks. The number of these partitions ...

The movement and causes of this movement in Earths atmosphere depend merely on the magnitude and distribution of the net radiative heating of the earth atmosphere system. In the troposphere, the net adiabatic heating ...

Nanosilicon (nanocrystal and porous) research is gaining tremendous attention in recent years due to the light emitting properties of the material. Improving efficiencies in radiative recombination and light extraction ...

The low latitude and equatorial ionosphere TEC and S4 index variability are investigated using observational data. Two GPS stations namely Addis Ababa located at geographic latitude 9°.034 N and longitude 38°.67 E and ...

Cheng (2003) model of the extra-thoracic respiratory tract was used to calculate the deposition efficiency of aerosols of aerodynamic diameter ranging from 0.1 m to 72 m. The model assumes the deposition in the ...

Flow estimation at a point in a river is vital for a number of hydrologic applications including flood forecasting, water resource management, and for development applications. This paper presents the result of a watershed ...

One of the important issues in practical and sustainable rangeland management is the study of range suitability. Rangelands are complex ecosystems with balanced and accurate relationships among its parts. Correct management ...

The complete set of this paper focuses on k-shortest path problem and algorithms which solve k-shortest path in a graph G where V is set of n nodes and E is set of m arcs. and I have discussed how to compute the first, ...

Twenty-five tetraploid wheat landraces and 15 improved durum cultivars were used to study the diversity and relationships within and among tetraploid species and regions of origin, and improved cultivars. Thirty-one ...

We have studied the spin orbit-coupling from the Dirac equation, Understanding the properties of electronic states in quantum wires is a central issue in nanoscience. In the ballistic region, with low electronic densities, ...