The problem of pole assignment, also known as an eigenvalue assignment, in linear discrete-time periodic systems in discs was solved by a novel method which employs elementary similarity operations. The former methods tried to assign the points inside the unit circle while preserving the stability of the discrete time periodic system. Nevertheless, now we can obtain the location of eigenvalues ...

A network of connected wetlands supports migratory movements waterfowl. These networks are rapidly changing due to intensive human activities around natural habitats. Quantifying how anthropogenic factors change waterfowl via a reduction habitat availability and quality can facilitate better understanding the dynamics these migration networks, provide early-warning signals for collapse. Using s...

Soil organic carbon (SOC) and total nitrogen (TN) stock are key indicators of soil quality in tropical regions; however, their status is often degraded, especially due to massive deforestation natural forest areas associated with extensive agricultural land use. The aim this study was investigate the dynamics SOC TN different land-use systems Abobo woreda, Western Ethiopia. To analyze status, 8...

the prevalent communications networks suffer from lack of spectrum and spectrum inefficiency. this has motivated researchers to develop cognitive radio (cr) as a smart and dynamic radio access promised solution. a major challenge to this new technology is how to make fair assignment of available spectrum to unlicensed users, particularly for smart grids communication. this paper introduces an i...

the method of sampling unit was applied according to the importance of the park in urban landscape structure with the initial purpose of planning method to maximize environmental sustainability and recognizing the structural elements within the park. swot technique has been applied to analyze collected data and evaluate the strengths and weaknesses, opportunities and threats of affected areas. ...

A vertex irregular total k-labeling of a graph G with vertex set V and edge set E is an assignment of positive integer labels {1, 2, ..., k} to both vertices and edges so that the weights calculated at vertices are distinct. The total vertex irregularity strength of G, denoted by tvs(G)is the minimum value of the largest label k over all such irregular assignment. In this paper, we study the to...

The need to feed livestock of herdsmen necessitates their migration from their communities due to inadequate pastures to other communities and this has led to the trespass of these pastoralists to the farmlands of local agriculturalists and destruction of their crops thereby leading to conflict. This study therefore analyses the causes, evolution, dynamics and solutions to the conflicts generat...

ure from Greek mythology for nearly 3 millennia. Central to his myth is the story cycle about the 12 presumably impossible labors he carried out for the loathed King Eurystheus. Sometimes overlooked is that Hercules performed those tasks as penance for having murdered his own wife and children during a fit of madness. For the fourth labor, Eurystheus ordered Hercules to capture the vicious Erym...