Read about network | 18 Discussions | Page 1

  1. K

    Adjacency matrices and network visualisations

    I have this set of adjacency matrices and networks given to me and I need to match the matrix to the network and then describe the dynamics. At first glance it seems to be Ac, Bb and Ca but I'm not sure if that's too obvious and I'm missing something as I haven't looked at visual...
  2. hagopbul

    Computer DIY ideas for quarantine time

    Hello all: I hope all are fine and well in their houses As I am looking into ways to fill my empty time other than reading undergraduate physics books I start to look around and wonder about giving online lessons for public school students , which they are now without a school , but I found...
  3. Tone L

    Wifi hotspot recommendations

    Hi all, I am planning a trip where I will travel to the pacific western United States. The states encompassing the trip are Idaho, Oregon, Washington and northern California. I want to upload some data along the way. I have been seeing many maps that outline hot spot coverage with companies...
  4. Jason-Li

    Insertion Loss of a T-Network

    Homework Statement Calculate the insertion loss of the T-network given the values: Rs = 75Ω Rl = 100Ω Ra = 13Ω Rb = 13Ω Rc = 213Ω The transmission matrix and Network are below: 2. Homework Equations The Attempt at a Solution Constructing the matrix: A = 1+Ra/Rc = 1+13/213 = 1.061 B...
  5. T

    I Single component network

    What does it mean if a simple network consists of n nodes in a single component? More specifically, what is does it mean to be in a single component?
  6. Auto-Didact

    Language as a Dynamical System

    A few years ago I read two pretty groundbreaking linguistic papers from the 90s arguing that natural languages are networks which can be conceptualized from the perspective of nonlinear dynamical systems theory, with a lexicon being a state space and grammatical rules being attractors in that...
  7. ADDA

    Does this ANN make Benjamins?

    I'm attempting to use a artificial neural network to store a fuzzy floating point variable. While writing the code, I became somewhat creative. I used the idea of an Set Reset Latch and statistically translated the hardware SR-latch into an artificial neural network. My mathematical goal is to...
  8. Auto-Didact

    A Algebraic topology applied to Neuroscience

    Eugene Wigner once famously talked about the "unreasonable effectiveness of mathematics" in describing the natural world. Today again we are seeing this in action in particular with regard to the description of the biological brain from the perspective of neuroscience. Researchers from the Blue...
  9. W

    Basic Question about Users in a System (like the PF for example)

    Hi just curious, What is the computing/networking model for a site with many users, say, as PF? Is it to grant access to each user to a shared drive? Sorry if this is too simple. I mean, I understand that first I login and I have to be first authenticated, then authorized to access certain...
  10. V

    How should I represent a financial market as a graph?

    Hi guys. I am reading several papers about financial market and authors show the possibility to represent this market as a graph in which nodes correspond to traders and edges represent trading relationships. Which programming software could be a powerful tool to write a such code? I am...
  11. T

    Cellular Network Standard

    I am very confused with the 3G, 4G, LTE, UTMS, WCDMA terms... Hope someone could shed some light on it. I think complication arises when marketing people start to use these terms interchangeably? Below is my interpretation, is that correct? Would someone be kind enough to make some comments...
  12. D

    Finding unknown values in DC resistor network via matrices

    Homework Statement I need to get 7 equations to make a 7x7 matrix in order to solve it. I have 4 of them, but I'm not sure how to get the voltages equations. Homework Equations The Attempt at a Solution I have got four equations so far. One is simply using KCL, I1 = I2 + I3 + I4. The other...
  13. K

    1 pipe branching into 3 pipes, pressure of each branch?

    Hello all, I am a mechanical engineer, graduated just last year. Although I am not working with fluid mechanics right now, I was browsing through my fluids book from school and saw the section on pipe networks. As I was reading, I developed this question which I could not find an answer to in...
  14. 22990atinesh

    How to calculate Clock Skew of nodes in a distributed system

    A distributed system has 3 nodes ##N_1##, ##N_2## and ##N_3##, each having its own clock. The clocks of nodes ##N_1##, ##N_2## and ##N_3## tick 800, 810 and 795 times/ms. The system uses the external synchronization mechanism, in which all 3 nodes receive the real time every 30 seconds from...
  15. F

    What is bandwidth?

    I'm having hard time understand what bandwidth really is? The book i'm using defines it as the width of a signal's spectrum (where spectrum is the range of frequencies in a signal). So, for example, I have a composite, periodic signal s(t) = 4/π[sin(2πft) + (1/3)sin(2π(3f)t)]. Then the...
  16. AdityaDev

    Hub, switch, router

    In my computer textbook, on one page, its given that switches can't stop traffic from travelling to all other LAN segments. On the next page, it says that switches send traffic only to appropriate connections. On a YouTube video, it says both will happen. First it send the packets to all...
  17. 22990atinesh

    What can be the answer for this question -- Datapath through 3 routers

    Homework Statement An IP machine Q has a path to another IP machine H via three IP routers R1, R2, and R3. Q—R1—R2—R3—H H acts as an HTTP server, and Q connects to H via HTTP and downloads a file. Session layer encryption is used, with DES as the shared key encryption protocol. Consider the...
  18. B

    Ubuntu 14.04, wireless network cannot connect

    I have recently installed ubuntu 14.04 alongside windows 7 but I'm having major issues with connecting to wireless networks. The networks are detected and show up in the network manager, but when I connect and insert the correct password (double checked), a window continues to pop up saying that...
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