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  1. T

    EMP question (MW2 spoilers)

    Long time? not as long as we have had radiation from the sun :)
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    EMP question (MW2 spoilers)

    It is a pulse and thus has a broad frequency content. The amount of energy you can pickup will also depend on the energy in the incident wave. At the same location, a device inside a house is less exposed than one outside of it. If the level of exposure is sufficient to cause damage depends on...
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    Question about CSFT (2d FFT)

    There is a difference between a sequence of numbers, and samples of a function, cos while both can be represented by a set of numbers, the sampling interval is relevant in one case and not the other. If I give you a finite set of of numbers, you can compute the DTFT with it, but you cannot...
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    Question about CSFT (2d FFT)

    its not a matter of interpretation or choice of domain. For example, an essential part of defining the fourier series equivalent expression is the associated fundamental frequency, which is not relevant in the case of the DTFT as the range is normalized. If one ignores such differences, one...
  5. T

    Question about CSFT (2d FFT)

    @OP exp(2*pi*x*u0)*exp(2*pi*x*v0) will give you an impulse at (u0, v0) or at its image, depending on how you define your foward and inverse transforms. Changing u0 and/or v0 will move the impulse accordingly in the (u,v) plane. Interpretation of the location of an impulse will depend on the...
  6. T

    Question about CSFT (2d FFT)

    While the expressions are similar, a DTFT is not an inverse Fourier series, as a Fourier series is based on continuous time while a DTFT is a forward transform on discrete time. In addition, for DTFT, the frequency range is bounded by f= [-1/2, 1/2] or a similar range. A DFT is a DTFT with...
  7. T

    Question about CSFT (2d FFT)

    CSFT = Continous Space (not surface) Fourier Transform. Continous Time Fourier Transfrom (CTFT) and Discrete Time Fourier Transform (DTFT) operate in two differnt domains. FFT is an algorithm for computing DTFT.
  8. T

    Interpretation of Square wave response

    The Fourier series of a triangular waveform is also made up of odd harmonics. http://mathworld.wolfram.com/FourierSeriesTriangleWave.html The Fourier coefficients for a square wave are proportional to 1/n,where n is the order of the harmonic.
  9. T

    Regular expression property

    Logic http://mathworld.wolfram.com/RegularExpression.html
  10. T

    Regular expression property

    arent all 3 expressions simply equal to (R|S)*
  11. T

    Regular expression property

    are R and S sets or elements? and '*' = kleene?
  12. T

    Phasor analysis

    Another reason for it being pointless is that there will be only two phases (0 and pi) and thus all your phasors will lie on one line resulting in simple addition and subtraction
  13. T

    Hardware reserved memory

    Its reserved addresses and not reserved RAM
  14. T

    quick matlab question

    see http://www.mathworks.com/acces...2Y91JbkzerJXmJlvC1WNRw .... and surrounding topics if needed.
  15. T

    CPU Overclocking, Vcore MAX myths and truth

    Nice discussion. My understanding of the issue is that with LLC you are essentially trading a higher V_load (and lower V_idle), for higher transient overshoot. I expect the actual calibration to be a one time even, but that does not exclude the occurrence of transients with load changes...
  16. T

    Compression and correlation function

    Lets take a second stab at this: The phrase quoted is a bit misleading. Natural images are not 'difficult to compress', but more precisely do not compress well if entropy encoded directly. Like you rightly noted, correlation, is a sign of redundancy, and thus hints at possible compression...
  17. T

    Compression and correlation function

    Are u familiar with the concept of entropy and entropy encoding?
  18. T

    Compression and correlation function

    Lossless compression is typically perfromed in two stages: 1. Decorrelation: to remove redundancy. In your example, this is achieved by motion compensation and using the image model. 2. Entropy encoding: to encode the symbols using the smallest possible number of bits needed, with often...
  19. T

    Some questions for you PhD's

    Looking at a post BS = combined MS + PhD program 1. Depends on you, the school and the field. MS is often like harder undergrad with possibly a little bit of research. Programs in top schools could be more stressful, as they are often more competitive 2. Some schools require you maintain a...
  20. T

    Eigenvector Problem

    Its applicable to any autonomous linear dynamical system governed by the relationship dX=Ax, where A is the state matrix. The practical/physical implications of the type of fixed node, will depend on the original system/phenomenon that was modeled. So do you want examples of what can be...
  21. T

    Eigenvector Problem

    http://mathworld.wolfram.com/FixedPoint.html see the table at the bottom In your case, it is an unstable improper node.
  22. T

    DDR3 memory question - How do CAS Latency and speed affect one another?

    How did u come about the 1/800?:confused:
  23. T

    DDR3 memory question - How do CAS Latency and speed affect one another?

    Not an expert but from my understanding The memory has as an underlying latency requirement in seconds. Usually this is not known but can be estimated from known working CAS and clock pairings. CAS latency is specified in units of cycles e.g. CAS 7 means 7 cycles. The effective time delay...
  24. T

    Is an SLC SSD worth it for the longevity?

    Q: When a cell loses integrity from excessive writes, what do u lose: a bit, a page, or a block?
  25. T

    So which is the top 1TB drive?

    From the xbitlabs review, the performance of the 32MB E7K100 looked ok, while the 16MB 7k1000.B was inconsistent. Unfortunately, it is the latter that can be had for cheap.
  26. T

    So which is the top 1TB drive?

    new? I thot the WD unit had been around for a while.
  27. T

    So which is the top 1TB drive?

    Thanks. Seems I would be going withe the Samsung unit. Any pros with going with 2 x 500GB (non RAID) v single 1TB disk?
  28. T

    So which is the top 1TB drive?

    I am looking to buy a 1TB 7200RPM HDD to be used as a primary drive and, with all the new units with 500GB/platter around, was wondering which was the current drive of choice. Drives have been looking at: - Seagate 7200.12 ST31000528AS - WD Caviar Black WD1001FALS - Samsung Spinpoint F3...
  29. T

    Gnomonic Projection

    Looking for detailed information on the gnomonic projection:transformation, inverse, discrete implementation, and possibly properties. Mathworld: Gnomonic Project
  30. T

    MSI PR400 opinions?

    nobody?
  31. T

    MSI PR400 opinions?

    I'm thinking of buying one for a friend and am looking for opinions (on quality, reliability, aesthetics etc) from anyone with experience using the MSI PR400. Pointers to reviews, or just thoughts on MSI laptops in general are also welcome.
  32. T

    AOE II

    AOE II = best medieval PC RTS game. AOE III had nice graphics but sucked in game play.
  33. T

    Freeware programs and applications (continuation)

    This is the link I found for The Godfather's new site
  34. T

    I am not going to see the Biggie movie this weekend.

    People should learn to separate the music from the musician. While I have preferences for certain genres, often its more of the execution than the genre or artiste that decides if I like a track. The problem with going to watching B.I.G.s movie in certain theaters is cos of the demographics...
  35. T

    Computer Case Climate Control?

    Seems I 'll have to go the DIY route. Nothing out there seems to meet my needs closely enough.
  36. T

    Computer Case Climate Control?

    Thanks, while not really what I had in mind, its definitely in the right direction. Main issues seem to be with the software and USB implementation. Any other suggestions?
  37. T

    Computer Case Climate Control?

    I am looking for a system that trades of between system noise and temp, conditioned on utilization level and performance. The system input would include temp readings from various sensors (system + ambient), activity levels from components (CPU, GPU, Hard drive etc) and current fan speeds...
  38. T

    40nm Battle Heats Up

    This is such a nice read - lightens my day. kudos guys!!!!!!!!!! I think Chizow needs to call for back up - the deck is being stacked against him. Need to go grab a bite, be back soon. Please keep up the back and forth (no loafing while am away!) :laugh:
  39. T

    40nm Battle Heats Up

    Recipe almost complete, all we need is to add a dash of larabee!
  40. T

    Windows Vista Ultimate SP1 Promotional Kit PIN expired after Dec 31st - WTF!!!

    To all the 'lawyers', I never said I was suing MS, but considering legal options. Anyways, all is moot as I have a working product key.
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