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reng

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Posts posted by reng

  1. I am trying to learn how to design circuits and was going to start with something that is "useful" and design a voltage amplifier. Was wondering if anyone could tell me the flaws (if any) that are in the below problem.

     

    The data sheet for the transistor is here : http://www.ortodoxism.ro/datasheets/microsemi/2n3634.pdf

     

    and here is my little circuit :

    Vcc = 10v
    Ic  = 10mA
    Hfe = 100
    Q1  = 2N3635
    
    Ib  = (Ic/Hfe) = (.01/100) = 0.0001 or .1mA
    R1  = (.5Vcc)/Ic = (5v/.01) = 500
    R2  = 1/(Ic+Ib) = 1/(.01+.0001) = ~99
    R4  = (Vr2+Vb-e)/(9*Ib) = 6v/.9mA = 6666
    Vr3 = 10-6 = 4v;
    R3  = 4v/(Ir4+Ib) = 4v/1mA = 4000
    
    R1 = 500
    R2 = 100
    R3 = 4k
    R4 = 6.5k
    
    
    
    	   o Vcc
    	   |
              --------.
      |	   |
      3	   3
      3 R3     3 R1
             3        3 
      |        |
    	  |        .----|(--o
      |        |
             |      |/
    o---|(----.------|  Q1
      |      |\>
      |	   |
      3	   3
             3 R4	   3 R2
             3	   3
      |	   |
      G	   G
    
    

  2. I heard something like, we physically only need an hour of sleep but mentally need the 6-8...

     

    i don't really know the extent - and this may be contributing to the myth..but there was a sleeping "style"? i've heard where you take 20 minute naps every 4 or 6 hours .. so essentially 80-120 minutes a day. during which time your body will adapt to REM for the entire duration of the nap. along with this though i heard you needed to eat a lot of fruit to have some sort of chemical balance.

  3. well, i am waiting on the caliper (sp?) to get here so i can start measuring... i can get pipes bent for free so no worries there.

     

    the only aftermarket i want is termi and sato..neither of them make exhausts for my bike (:

  4. reng' date=' For a nice initial question, you do not know what you are saying on you last reply. It is to cancel the noise, not the bursts timing:-(

     

    Miguel[/quote']

    i was thinking from the headers back perspective..i was thinking that by seperating it there it might be easier, but you would have to match cylinders that are firing simultaneously. i am not really sure what i am talking about - i really don't much about this type of thing; just throwing it out there trying to help out. it was meant to be more of a question but it came off wrong.

  5. sorry if this is all dumbed out. but basically to design the ontology and store information would sort of be like having multiple xml documents all dealing with different aspects - and the intelligence bit would come in when the bot would become able to create and store its own information?

  6. Uhh' date=' you shouldn't be storing information in hierarchies. You want ontologies.

     

    The brain, much like Google, stores information in a highly distributed and redundant manner in order to improve access times.

    perhaps this is why it seemed counter intuitive. i didn't know the word for that, thanks. perhaps now my searches will yield more results

  7. I have been running through a few things and thinking based off of a few things I have read..

     

    a) I have abandoned the 'neural' path mimic technique that many people seem to like. I disagree with this mainly due to the fact that I have read in the human brain all information is retrieved within 4 'synapse?'..but I cannot think of a way for data to be categorized in this way with an order.

    b) From reason a, if there is no order and it is seemingly random as to where each chunk of data is stored that makes it pretty difficult to find the data within 4 fires. (that could become extraordinarily slow after having 'taught' the ai thousands of nodes worth of data).

     

    so back to point a, this means that there needs to be some sort of order to the pseudo thought processes an ai must use to retreive and store data. thus, i will accept data must be stored in much longer narrower trees. rather than wide shallow trees. my thoughts here are now, how to make the ai learn where to retreive/store data. this is all mostly speculation because i am having trouble finding online resources for non-robotic applications. the second of my trouble is word cognition. i wrote down 3 sentences that i would try to figure out from a computational stand point.

     

    oranges taste good.

    [many similar colors/food noun] [verb] [shallow positive?]

     

    oranges are orange.

    [many similar colors/food noun] [verb] [many similar colors/food noun]

     

    there are many oranges in the coloring box.

    [exists] [many similar colors/food noun] [location] [specific noun]

    very abstractly the last sentence could be construed to mean both the fruit and the amount of shades of similar color. has anyone else ever tried doing this? the fact that the last sentence says 'coloring box' implies orange as a color, but you could say just 'box' and have been previously been talking about coloring or gesturing toward a box of crayons. i have found a single source geared towards solving this sort of thing but it does not handle prepositions nor does it handle actually translating them - pretty much all it did was what i did above. my only thought is to let the ai ask a question if the meanings do not become clear.

     

    I think much of this is worth discussing, particularly the latter.

  8. if you arc the wings, like someone said earlier, it will help create lift - and if you can lift it high enough before you lose power, it will glide down for a longer time, and it will descend much more slowly.

  9. if it isn't a homework assignment i would be willing to help out, the easiest way (well the way i always use) is

     

    char* x = new char[10];

    int the_number = 37;

    sprintf(x, "%d", the_number);

     

    as far as figuring out if the number is prime, it is easy enough to do if you follow the rules and don't mind speed.. obviously all numbers less than half the set to check, and if if it doesn't divide easily (look up the % operator, also remember to use a double and compare it to itself rounded to nearest 1).. this is all if you don't care about speed..

  10. that and if you seperate the pipes from each cylinder they are already firing out of phase, and you have to remember that a 4 stroke 2 cylinder motor will while one is firing the other one is not firing, it is preparing to fire so it will not produce the same noise.. the only way i see is if you can match the pipes for cylinder fire,

  11. the first error probably means the field it is requesting isn't found in the record set you are getting, or that what you are searching for wasn't found and you decided to use it anyway - it is difficult to tell without seeing the SQL and dB structure.

     

    the second could be a couple things. if you are using IIS (not sure if apache is the same way), then the user IIS is running under does not have permissions to update the dB, the database is *locked* (the file it is using is marked exclusive), you are not closing your dB connections and the allowable connections has been reached

     

    information about the second was obtained from : http://support.microsoft.com/default.aspx?scid=kb;EN-US;q306269

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