in this paper, analysis and simulation of media gateway controller (megaco) based cops (common open policy server) which is a protocol defined in ietf (internet engineering task force) to transport configuration requests and deliver the policies is presented. for this scenario, three queuing models include m/m/1, m/m/c and m/d/c were applied . then, some of the key performance benchmarks look l...

a‎s we know, developing mathematical models and numerical procedures that would appropriately treat and solve systems of linear equations where some of the system's parameters are proposed as fuzzy numbers is very important in fuzzy set theory. for this reason, many researchers have used various numerical methods to solve fuzzy linear systems. in this paper, we define the concepts of midpoint a...

We have developed an experimental catheter insertion system supporting head-tracked stereoscopic viewing of volumetric reconstruction registered with direct haptic 3D interaction. The system takes as input patient data acquired with standard medical imaging modalities and regards it as a visual and haptic environment whose parameters are defined using look-up tables. By means of a mirror, the s...

in this paper, we propose the least-squares method for computing the positive solution of a m  n fully fuzzy linear system (ffls) of equations, where m > n, based on kaman's arithmetic operations on fuzzy numbers that introduced in [18]. first, we consider all elements of coecient matrix are non-negative or non-positive. also, we obtain 1-cut of the fuzzy number vector solution of the n...

We express this data as a profile (a vector representing the number of votes cast for each ranking), p = (3, 8, 8, 0, 0, 5). • Positional outcome (w = [1, 1/2, 0]): A wins A gets 15 points, B gets 12 points, C gets 9 points. • Pairwise outcome: B beats A 13 : 11, A beats C 19 : 5, C beats B 13 : 11. The pairwise rankings are not transitive, nor do they agree with the positional ranking. These a...

The combination of multiple global navigation satellite systems (GNSSs) is able to improve the accuracy and reliability, which is beneficial for navigation in safety– critical applications. Due to the relatively low accuracy of pseudorange observations, the single-epoch GNSS realtime kinematic (RTK) using phase observations can be utilized to achieve centimeter accuracy positioning instantaneou...

Many interval number ranking methods cannot representthe different attitudes of decision makers with different riskappetites. Therefore, interval numbers are expressed in the RectangularCoordinate System (RCS). After mining the interval numbers in the RCS,the Symmetry Axis Compensation Factor, which is known as (lambda),was introduced, and the Equivalent Function o...

In this paper, a gene regulatory network called FGRN (Fractal Gene Regulatory Network) and a reaction-diffusion system called AHHS (Artificial Homeostatic Hormone System) are investigated for spatial pattern formation. The two bioinspired controllers possess similar and different features in terms of their underlying processes, structures, and communication abilities. By comparing their behavio...