The present study intended to review the historical development of regime geometry equations proposed by many researchers since 1895. Kennedy started search for attributes stable channels on Upper Bari Doab Canal Punjab in 1980-1984. concept was presented Lindley (1919) that later Lacey (1930) modified a set most widely used relations. Later on, Blench (1941-1957), and Simons Albertson (1960) t...

Entropy is essential. a measure of system’s molecular disorder or unpredictability, since work produced by organized motion. theory offers profound understanding the direction spontaneous change for many commonplace events. A formal definition random graph exists. It deals with relational data’s probabilistic and structural properties. The lower-order distribution an ensemble attributed graphs ...

abstract the aim of this study was to determine the input–output energy consumption in different levels of tomato production. the data used in the study were obtained from 140 tomato growers in different villages of marand township by using a face to face questionnaire. the results showed that the amount of energy consumed in tomato production was 65.2 gjha-1 which about 51% of this was generat...

the study examined gender analysis of energy use for rice production in north central nigeria using a sample of 60 rice farmers. an analysis of gender relations provides the information on the different conditions men and women face, and the different effects that policies and programs may have on them. simple descriptive statistics were used to analyze the data. energy efficiency and energy pr...

in this paper smart operation of micro energy hub is presented. energy hub system consists of certain energy hubs and interconnectors that are coordinated by energy hub system operator. an energy hub contains several converters and storages to serve demanded services in most efficient manner from available energy carriers. in this paper, the flexibility of energy delivery point is enhanced u...

for a simple connected graph $g$ with $n$-vertices having laplacian eigenvalues‎ ‎$mu_1$‎, ‎$mu_2$‎, ‎$dots$‎, ‎$mu_{n-1}$‎, ‎$mu_n=0$‎, ‎and signless laplacian eigenvalues $q_1‎, ‎q_2,dots‎, ‎q_n$‎, ‎the laplacian-energy-like invariant($lel$) and the incidence energy ($ie$) of a graph $g$ are respectively defined as $lel(g)=sum_{i=1}^{n-1}sqrt{mu_i}$ and $ie(g)=sum_{i=1}^{n}sqrt{q_i}$‎. ‎in th...

research topics dealing with the application of the markal model have been quite common in the last 20+ years. every new paper has added new insight into the potential of using such a model for a variety of purposes. not only global but also local applications have shown both limits and benefits when dealing with manifold energy-environmental-resources optimal management. the aim of this wo...

in iran the mainstreaming tool for integrating environmental concerns into energy sector is an energy-environment review (eer-iran). this paper comprises: (i) an analysis of the current situation with regards to energy production and consumption; (ii) an evaluation of the growth prospects with regard to energy production and consumption; (iii) the identification of environmental issues induced ...

Let G be a simple graph of maximum degree ∆ > 3, not containing K∆+1, and L a list assignment to V (G) such that |L(v)| = ∆ for all v ∈ V (G). Given a set P ⊂ V (G) of pairwise distance at least d then Albertson, Kostochka and West (2004) and Axenovich (2003) have shown that every L-precolouring of P extends to a L-colouring of G provided d > 8. Let K− ∆+1 denote the graph K∆+1 with one edge re...