What is Network analysis: Definition and 24 Discussions
Social network analysis (SNA) is the process of investigating social structures through the use of networks and graph theory. It characterizes networked structures in terms of nodes (individual actors, people, or things within the network) and the ties, edges, or links (relationships or interactions) that connect them. Examples of social structures commonly visualized through social network analysis include social media networks, memes spread, information circulation, friendship and acquaintance networks, business networks, knowledge networks, difficult working relationships, social networks, collaboration graphs, kinship, disease transmission, and sexual relationships. These networks are often visualized through sociograms in which nodes are represented as points and ties are represented as lines. These visualizations provide a means of qualitatively assessing networks by varying the visual representation of their nodes and edges to reflect attributes of interest.Social network analysis has emerged as a key technique in modern sociology. It has also gained significant popularity in the following - anthropology, biology, demography, communication studies, economics, geography, history, information science, organizational studies, political science, public health, social psychology, development studies, sociolinguistics, and computer science and is now commonly available as a consumer tool (see the list of SNA software).
TL;DR Summary: How to write down the loop-impedance matrix in case of Current-Controlled Current Sources
Hi,
as in the following linear network, I would like to write down the loop-impedance matrix for it where there is a CCCS ##2i_1## source.
The starting point is the network elements...
Hi,
I've a question about a proof found in the book Applied Graph Theory from Wai-Kai Chen. My point is that basis circuit matrix B and basis cut matrix Q employed in the proof actually refer to two different networks.
B should be the basic circuit matrix of the initial network with current...
I have a question about natural limitations when the superposition principle for circuits is applicable. Possibly there is a quite elementary reason why the problem I'm going to present next fails, but up to now I haven't a precise reason why that's exactly the case. Could somebody help...
I consider the band-pass filter of the following configuration (the ##u_m## is a voltage controlled voltage source):
The transfer function is
$$K_1(p)=\hat{U}_o(p) = \frac{p}{RC(p+1/RC)^2} = \frac{\omega_c p}{(p+\omega_c)^2}, \quad \omega_c=\frac{1}{RC}.\qquad (1)$$
Now I connect ##n## such...
Problem Statement: Finding the resistance when probed at point bc, cd and da
Relevant Equations: Series and Parallel resistance equation derived from kirchhoff's law with application of ohm's law
I genuinely don't know what to do on this one. The example our professor made isn't exactly clear...
I want to do a cost estimation for an edge data center in Bakersfield, California. I don't know how big should the center be and i do not know how i can view the data traffic. Can anyone help?
Hello!
I've took a course about Electrical circuits and Networks at the university, and i found out a problem which is uploaded by my professor, and i think he made a mistake!
this is the solution
i think that the equivalent resistances are wrong (beside Rab), for example if you look at...
Hello Everyone!
So, I need to calculate the voltage in the capacitor, let's call it Vc(t).
For t=0- I know that there is no current in the capacitor. Did some calculations and I've found that Vc(0)=6v.
Now i need to know Vc(infinite)
But when the switch key is opened and the time goes to...
given:
source voltage =120V
voltage across 15 ohm resistor = Va
there is a dependent source 2Va
and a 30 ohm resistor.
I tried applying KVL i.e 120-30I+2Va-Va=0
where Va=15I
and got I=2.66A
whereas my teacher told me that the answer is 8A. how is it so? Is it some basic knowledge that I have...
I am learning network theorem,my syllabus includes application of kcl,kvl,thevenin and norton theorem,superposition theorem,maximum power transfer
I studied it from malvino,its quite good! But lack of solved problems!
Actually I am finding difficulty while solving networks with double voltage...
Does anyone know of any tools/graphs that show relationships in networks in a more "smoky" form that evolves in time? Preferably that correlates with spatial location though not necessarily to a map.
This is a "normal" picture and not what I am looking for, rather something for which the...
Homework Statement
Homework Equations
Pmax = ((VTh)2)/(4RTh)
Rparallel = (R1R2)/(R1 + R2)
KCL ΣI = 0
KVL ΣV = 0
The Attempt at a Solution
Okay, so to find RTh, I remove all independent sources and set the "terminals" at R to have a 1A current running through them. Since there is a 30kΩ...
Homework Statement
Homework Equations
KVL: ΣV = 0
KCL: ΣI = 0
v = iR
The Attempt at a Solution
I started by removing the independent current source to leave an open circuit. Then I attempted nodal analysis at nodes v1, v2, and v3:
KCL @ v1:
(v1 - v2)/10 = v1/40
KCL @ v2:
(v2 - v1)/10 -...
Homework Statement
Homework Equations
Ohm's Law: v = iR
KVL: ∑ V = 0
KCL: ∑ I = 0
Linearity: kiR = kvThe Attempt at a Solution
Okay, so to apply superposition, I'm supposed to turn off all independent sources except one. I began by turning off the voltage source, and I then I used KCL to...
Homework Statement
Compute values for R and C such that the total series impedance Z=500\angle(-36.1o) when f=10kHz.
Homework Equations
ω=2\pif
KVL
ZC = -j*(1/(ωC)) = 1/(jωC) where j=\sqrt{-1}
The Attempt at a Solution
Seems like a pretty straightforward problem, I seem to...
Homework Statement
It's a not specific problem. Just a general question. Suppose, I have a graph and I need to write a fundamental cut set matrix. If I define the cut set orientation by choosing the direction of branch current, does every other cut set have to oriented exactly the same way...
1. The flow of traffic (in vehicles per hour) through a network of streets is shown below. The diagram shows :
200 and x2 is entering junction 1 and x1 is leaving the junction.
Junction 2, 100 and x1 is entering the junction and x3 is leaving the junction.
Junction 3, 200 and x4 is leaving...
Homework Statement
Theres two current sources and three voltages sources the problem wants to know the power supplied by each current source
Homework Equations
according to the book the problem can be solved using Kirchoffs current law and kirchhoffs voltage law
The answers according...
Homework Statement
Thanks for looking/responding!
Using node voltage analysis in the circuit, find the current i through the voltage source
The Attempt at a Solution
How do I know what direction the all the currents are going before I start analyzing each node?
I know 2A is going counter...
I've forgotten the word for a process I'm trying to remember.
This process is the named after the person who suggested it (iirc) and it's used to determine the structure of and processing within a network (anything, jumbled up wires etc). Determination is performed by observing what data is...
hello there, I've been given a circuit and I am trying to draw a directed graph for it.
i drew it out in microcap:
[PLAIN]www.compsoc.nuigalway.ie/~filter/question.gif[/URL]
im wondering if the graph is correct. i think for some reason the direction of current for I1 in the graph has to...