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Harmonic index

On the harmonic index and harmonic polynomial of Caterpillars with diameter four

On the harmonic index and harmonic polynomial of Caterpillars with diameter four

... The harmonic index is one of the most important indices in chemical and mathematical ...Randić index which is the most successful molecular descriptor in structure-property and structure activity ...

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On Harmonic Index and Diameter of Unicyclic Graphs

On Harmonic Index and Diameter of Unicyclic Graphs

... Let G = (V, E) be a simple connected graph with vertex set V (G) and edge set E(G). The degree of a vertex v of G is denoted by d(v). If u, v ∈ V (G), then the distance between u and v is the length of a shortest u − v ...

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Extremal Phenylene Chains with Respect to the Kirchhoff Index and Degree-based Topological Indices

Extremal Phenylene Chains with Respect to the Kirchhoff Index and Degree-based Topological Indices

... Kirchhoff index and the degree-based topological indices considered in this paper are important topological indices, which have significant applications in ...Kirchhoff index, minimum and maximum ...

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Vol 8, No 2 (2017)

Vol 8, No 2 (2017)

... C hemical graph theory is a branch of graph theory whose focus of interest is to finding topological indices of chemical graphs which correlate well with chemical properties of the chemical molecules. In this paper, we ...

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The Edge Version of Degree Based Topological Indices of p NAqp Nanotube

The Edge Version of Degree Based Topological Indices of p NAqp Nanotube

... Chemical graph theory is an important branch of mathematical chemistry which has wide range applications. In chemical graph theory a molecular graph can be recognized by a numerical quantity which is called a Topological ...

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Chromatic Harmonic Indices and Chromatic Harmonic Polynomials of Certain Graphs

Chromatic Harmonic Indices and Chromatic Harmonic Polynomials of Certain Graphs

... chromatic harmonic polynomial and therefore a minimum chromatic harmonic ...chromatic harmonic polynomial and the maximum chromatic harmonic ...

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On some bounds of the topological indices of generalized Sierpiński and extended Sierpiński graphs

On some bounds of the topological indices of generalized Sierpiński and extended Sierpiński graphs

... connectivity index, harmonic index, Zagreb indices and sum-connectivity index for the generalized Sierpiński graphs and extended Sierpiński ...

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Topological Indices of Cetirizine

Topological Indices of Cetirizine

... Zagreb index, second Zagreb index, first multiple Zagreb index, second multiple Zagreb index, augmented Zagreb index, Harmonic index and hyper Zagreb index, first ...

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Harmonic Temperature Index of Certain Nanostructures

Harmonic Temperature Index of Certain Nanostructures

... Zagreb index, Harmonic index, atom-bond connectivity index are exploited to estimate the bioactivity of chemical ...topological index, called the Harmonic temperature ...

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Inequalities between degree  and distance based graph invariants

Inequalities between degree and distance based graph invariants

... the harmonic index and certain distance-based indices such as eccentric connectivity, connective eccentric, aug- mented eccentric connectivity, and Wiener indices for any non-self-centered ...

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Computation of Some Degree Based Topological Indices of Silicates (SiO2) Layer

Computation of Some Degree Based Topological Indices of Silicates (SiO2) Layer

... Abstract. Topological Indices is a graph invariant, which is defined from a set of finite graphs to real numbers. A large number of topological indices have been conceived, depending on vertex degrees, which are called ...

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Harmonic Source Identification System

Harmonic Source Identification System

... the harmonic distortion ...with harmonic is as shown in Figure 1.2 (a). The harmonic occur in a single phase system for voltage and current is not a clean sinusoidal waveform due to non-linear ...

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Harmonic-by-harmonic time delay compensation Method for PHIL simulation of low impedance power systems

Harmonic-by-harmonic time delay compensation Method for PHIL simulation of low impedance power systems

... For the PHIL simulation of large impedance power systems, a big inductive component can be added in the simulation (transmission line or transformer) that has the effect of lagging the current. Therefore, it can be said ...

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Fuzzybased Transformerless Single Phase Universal Apf for Harmonic and Reactive Power Compensation

Fuzzybased Transformerless Single Phase Universal Apf for Harmonic and Reactive Power Compensation

... Fig. 2 presents the control block diagram of the system. The capacitor dc-link voltage ( = E) is adjusted to a reference value by using the controller , which is a fuzzy logic controller. This controller provides the ...

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Hemodynamic effects of perfusion level of peripheral ECMO on cardiovascular system

Hemodynamic effects of perfusion level of peripheral ECMO on cardiovascular system

... The human heart produces pulse by contraction, stroke volume ejection, and then relaxation, with one-way valves. Given this mechanism, a pulsatile circulation is obliga- tory [36]. The non-pulsatile blood flow from the ...

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A Few Aspects Of Power Quality Improvement Using Shunt Active Power Filter

A Few Aspects Of Power Quality Improvement Using Shunt Active Power Filter

... Current harmonic compensation strategies are exceptionally important ...current harmonic compensation will aid system designers for better approached power rating ...

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The Harmonic Resonance In A Distribution Power System Using An Active Filter With Fuzzy Based Resonant Current Control

The Harmonic Resonance In A Distribution Power System Using An Active Filter With Fuzzy Based Resonant Current Control

... variable harmonic conductance in step with the voltage overall harmonic distortion, so harmonic distortion may be reduced to an appropriate stage in response to load change or parameter variant of ...

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Vol 11, No 7 (2020)

Vol 11, No 7 (2020)

... Dakshayani index [19], square neighborhood Dakshayani index [20], connectivity neighborhood Dakshayani indices [21], first and second multiplicative neighborhood Dakshayani indices [22], multiplicative ABC, ...

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Rigidity of $\tau$ quasi Ricci harmonic metrics

Rigidity of $\tau$ quasi Ricci harmonic metrics

... We study τ-quasi Ricci-harmonic metrics. First, we shall derive some formulae which will give some integral formulae for such a class of compact manifolds that permit to obtain some rigidity results. Second, and ...

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Digital Harmonic Canceling Algorithm for Power Amplifiers Based on Nonlinear Adaptive Filter

Digital Harmonic Canceling Algorithm for Power Amplifiers Based on Nonlinear Adaptive Filter

... filter, harmonic distortion in the communication band should be suppressed in a different way to satisfy power spectrum ...mask. Harmonic distortion poses an important challenge to wideband transmitter ...

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