In electrical engineering what is the use of network topology and transient analysis ?
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Your question is a little confusing. Network Topology is not a theory, it is a reference to the arrangement or physical layout of computers, cables, and other components on the network. A network's topology affects its capabilities. The choice of one topology over another will have an impact on many things, including:\n\n-What type of equipment the network needs\n-Capabilitites of the equipment\n-Growth of the network\n-Way the network is managed\n\nAll network designs stem from four basic topologies: Bus, Star, Ring, and Mesh. All four topologies have advantages and disadvantages. Cost, network speeds, and system reliability are but a few. \n\nTransient analysis is also not a theory but a method, it  provides for plotting of any time-domain waveform. Some variables include digital state, voltage, current, power, energy, charge, resistance, capacitance, inductance, B field, and H field. A variety of variables and mathematical functions are available to simplify plots. Transient analysis is used (in electronics) to better understand the circuits behavior in relation to time.
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Coupling is a necessary step in transferring energy between circuits. \nDirect, RC,Impedance and transformer coupling are the four ways to accomplish this.
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Types of computer network\n\n1) A bus network is a network architecture in which a set of clients are connected via a shared communications line, called a bus. There are several common instances of the bus architecture, including one in the motherboard of most computers, and those in some versions of Ethernet networks.\n\nBus networks are the simplest way to connect multiple clients, but often have problems when two clients want to transmit at the same time on the same bus. Thus systems which use bus network architectures normally have some scheme of collision handing or collision avoidance for communication on the bus, quite often using Carrier Sense Multiple Access or the presence of a bus master which controls access to the shared bus resource.\n\nA true bus network is passive – the computers on the bus simply listen for a signal; they are not responsible for moving the signal along. However, many active architectures can also be described as a "bus", as they provide the same logical functions as a passive bus; for example, switched Ethernet can still be regarded as a logical bus network, if not a physical one. Indeed, the hardware may be abstracted away completely in the case of a software bus.\n\nWith the dominance of switched Ethernet over passive Ethernet, passive bus networks are uncommon in wired networks. However, almost all current wireless networks can be viewed as examples of passive bus networks, with radio propagation serving as the shared passive medium.\n\n\n2) Star networks are one of the most common computer network topologies. In its simplest form, a star network consists of one central switch, or hub computer which acts as a router to transmit messages.\n\nWhen applied to a bus-based network, this central hub rebroadcasts all transmissions received from any peripheral node to all peripheral nodes on the network, sometimes including the originating node. All peripheral nodes may thus communicate with all others by transmitting to, and receiving from, the central node only. The failure of a transmission line linking any peripheral node to the central node will result in the isolation of that peripheral node from all others, but the rest of the systems will be unaffected.\n\nIf the central node is passive, the originating node must be able to tolerate the reception of an echo of its own transmission, delayed by the two-way transmission time (i.e. to and from the central node) plus any delay generated in the central node. An active star network has an active central node that usually has the means to prevent echo-related problems.\n\n3) A ring network is a topology of computer networks where each node is connected to two other nodes, so as to create a ring. The most popular example is a token ring network.\n\nRing networks tend to be inefficient when compared to star networks because data must travel through more points before reaching its destination. For example, if a given ring network has eight computers on it, to get from computer one to computer four, data must travel from computer one, through computers two and three, and to its destination at computer four. It could also go from computer one through eight, seven, six, and five until reaching four, but this method is slower because it travels through more computers.\n\n4) Mesh networking is a way to route data, voice and instructions between nodes. It allows for continuous connections and reconfiguration around blocked paths by "hopping" from node to node until a connection can be established.\n\nMesh networks are self-healing: the network can still operate even when a node breaks down or a connection goes bad. As a result, a very reliable network is formed. This concept is applicable to wireless networks, wired networks, and software interaction.\n\nA mesh network is a networking technique which allows inexpensive peer network nodes to supply back haul services to other nodes in the same network. It effectively extends a network b
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this might prove to be useful:\nhttp://islab.oregonstate.edu/koc/ece575/02Project/Mor/
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One of the most frequently used is E=IR    ;E =voltage    I=current   R= resistance. U can change this every way depending on the unknown.\n    Good luck
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Communication network protocols used for Building, Industrial and machine automation applications.\n\nBACnet - for building automation, designed by committee ASHRAE.\n\nCC-LINK, supported by Mitsubishi Electric.\n\nControlNet\n\nDeviceNet - originally by Allen-Bradley\n\nEGD (Ethernet Global Data) - General Electric Fanuc PLCs (see also SRTP)\n\nEtherNet/IP - IP stands for "Industrial Protocol" Created by Rockwell Automation.\n\nFINS, Omron's protocol for communication over several networks, including ethernet.\n\nHost Link, Omron's protocol for communication over serial links.\n\nInterbus, Phoenix Contact's protocol for communication over serial links, now part of PROFINET IO.\n\nMelsecNet/10, supported by Mitsubishi Electric.\n\nModbus\n\nModbus-NET - Modbus for Networks\n\nModbus/TCP\n\nOptomux - Serial (RS-422/485) network protocol originally developed by Opto 22 in 1982. The protocol was openly documented and over time used for industrial automation applications.\n\nProfibus - by Siemens.\n\nPROFINET IO\n\nGE SRTP - General Electric Fanuc PLCs\n\nController Area Network and CANopen\n\nIndustrial Ethernet\n\nEtherCAT\n\nLonTalk - protocol for LonWorks technology by Echelon Corporation\n\nSinec H1 - Siemens
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Great question.  Define dead.  As a power engineer, you will not be on the front pages of newspapers, blogs, or even fathomable by non-engineers as to exactly what you do.  You will spend some of your time and early part of your career messing with dielectric material, blowing dust off coils, and checking and testing busbar connections.\n\nAs you mature, you'll recognize where you can fit in.  The power industry is very wide and encompasses many technologies from power generation, transmission, distribution, metering, and advanced telemetry (grid management covering tens of thousands of miles and thousands of megawatts).  As well, there is tremendous academic work ongoing in research into grid stability, network theory, high-voltage electronics - that's the cutting edge of power engineering.  On the other side, though maintenance and standards-setting is not glamourous, it's an important aspect that touches upon all the above areas.\n\nI would seek out an IEEE-Power member or any professional engineer, not necessarily someone with a PE license, and ask this same question - find out what facets you like and dislike.
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Your question is slightly ambiguous. However, in electronics, a node is a joint where two or more electrical lines meet (like a junction). I am not sure what a netmap is, but I could speculate that a net is what some would call a mesh. From Wikipedia: "For planar networks the meshes are the “windows” formed when the network is drawn with no branches crossing. Formally, a mesh is a circuit loop that does not enclose any elements. It is not always possible to identify a mesh current with a single branch current, and so it is not always possible to directly measure a mesh current."
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Integrated and Electrical Engineering
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http://www.btinternet.com/~brentours/ENGC11.htm
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Here is a good article. To understand them, you need to get a multimeter, and electronics projects book, a breadboard (to mount circuits on), and a selection of electronic parts from Radio Shack. Use batteries initially, and then when you are more confident a power supply and rectifier to do experiments, and measure voltage, current, and resistance values around the circuit.\nhttp://en.wikipedia.org/wiki/Electronics\nHyperphysics. (Google)\nhttp://www.mathworld.wolfram.com\nhttp://www.refdesk.com\n"You can do it electronics," Needham Heights, MA\nEnjoy!
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No equations but this may help.... when an electrical signal is travelling along, for example a piece of copper wire, there will be a field generated aroung the cable, similar to that of a magnet (remember at school we were taught about magnetic fields  with a magnet piece of paper and iron filings)\nWhen a second piece of wire is brought in close proximity to the 1st piece then it will cut the field , and a signal will be induced into the second piece of wire.This is called mutual induction. If a signal is now added to the second wire then the induced signal will either add or detract from it dependant on the phase at the time.... this will happen, also within the 1st piece of wire, as a field is now being generated by a signal supplied to the second wire.\nNow, by twisting the pairs together the field generated by the signal in the wire will be changing direction along its length (positive then negative then positive and so on)thus cancelling any induced signals (could be crosstalk in a speach circuit) out
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IEEE 829 - Test Procedure Specification (TPS)\n\n\n...did you SEE the memo about the new cover sheet?
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On a non-ideal wire, the voltage at an endpoint can’t change instantaneously, due to the capacitive and inductive effects described earlier. When a signal is impressed on a line (when a host sends a packet on the Ethernet), the voltage at the end of the wire must go from 0 to -2.5 volts. A packet rolling down the Ethernet cable is represented as a series of voltage changes, each with a corresponding change in current as defined by Ohm’s law. The endpoint of the wire appears to be a signal load, for this discussion assume that the load has an arbitrary value.
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This is specific knowledge for electrical and computer engineering.  If you want to know about it you can sign-up for IEEE explore\nhttp://ieeexplore.ieee.org/iel5/10095/32328/01509649.pdf?arnumber=1509649
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In electronics, which is my specialty, determining the dynamic response of a circuit (with respect to time or with respect to frequency) often requires the use of differential and integral calculus.  In structural engineering, designing buildings or bridges to make them strong and earthquake resistant also requires calculus.  Certainly physics and mechanics rely heavily upon calculus.  I'm not sure about chemistry or biology.
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Networking is the scientific and engineering discipline concerned with communication between computer systems. Such networks involve at least two computers separated by a few inches(eg: LAN, Bluetooth) or thousands of miles (e.g. Internet, Wifi). Computer networking is sometimes considered a sub-discipline of telecommunications.