Discuss how the bathtub curve might be used to represent the failure pattern for a recently introduced televis
100080
the bathtub curve are design only for bathtubs...they maybe design on anything...but the things is...do they fit?
808644
The failure is mainly due to fatigue due to the cyclic loading on the vanes. Prevention: use a material of high endurance strength. Well, corrosive atmosphere also can initiate failure. So consider the environment in which the vanes are used. Also containment of abrasive particles in the wind-stream is an important factor. This can be avoided using screens.
307198
It is linear on intervals, on (- infinite, 0) and on (0, +infinite) but not on the whole R. \n\nTry plotting it, you get a reversed V, not a straight line.
210959
Maybe the following picture will give you an idea:\nhttp://pg.photos.yahoo.com/ph/dpeter508/detail?.dir=/c51a&.dnm=b97fre2.jpg&.src=ph\n\nThis is a binary pattern painted on the shaft, with three sensors (red dots in the pic).  The outermost sensor will detect black and white squares, and can determine rotational speed based on the rate that the black and white squares go by.  As the shaft rotates, the sensors will detect the 3-bit pattern painted on the shaft at any point.  If the shaft is turning in one direction, the pattern will appear to "count up" or down depending on direction.
437532
Possibly Rectangular Series Transformer (RST).  See Page 7 of the link.
354429
This site should help\n\nhttp://www.technologystudent.com/struct1/model1.htm
624575
Example: If your car warranty is for 5 years, that is time-based maintenance.  If it is for 50,000 miles, that is condition based maintenance.\n\nBecause aging equipment can have higher failure rates, today's utilities have to increasingly consider the efficiency of their maintenance and replacement policies.\n\nAbout 10 years after the current average 25-year service life, aging processes will gradually increase the risk of faults of a wave of components, dependent on operational conditions. Reliability may decrease severely unless effective measures are taken using additional knowledge of the physical condition of the component and its failure causes.\n\nCondition-based maintenance (CBM) avoids the high costs of intensified time-driven tasks independent of condition. It addresses specific, effective tasks to the needs as indicated by diagnostic inspections. In comparison with time-based maintenance (TBM) the benefits of CBM result from maintenance savings and lifetime extension. In that respect, CBM can provide a more adequate management tool to meet the terminal behavior of the equipment.
883446
Hi, it depends on particular organisms. Check the link below for basic mathematical formulas you may be able to use.\n\nA study is done in which the number of bacteria in a liquid culture is monitored over a period of several hours. Ten observations were made:\n\n\nTwo questions need to be answered:\n\nIs this data consistent with an exponential growth model: N = N0ekt, where \nN0 = the number of bacteria present initially (at t = 0)\nk = a growth rate constant\nN = the number of bacteria present at a given time t,\nand e is the fundamental mathematical constant forming the base for natural logarithms. \nIf the answer to the first question is "yes", then what are the values of N0, k, and t2 (the so-called doubling time) for this bacterial system?\nThe experimental measurements listed above indicate the number of bacteria are growing with time. If we plot the observed values of N (vertically) against the elapsed time, t, in hours, we get a graph (available on web page below).\n\nYou can draw a smooth curve through the experimental points as shown in this figure, and the points all seem to lie relatively close to this curve. Further, this curve looks quite a bit like the graph of an exponential function, but from what we see, it might just as well be part of a parabola or of one of a number of other curves that result when various algebraic forms are graphed. This graph suggests that the answer to the first question may be "yes", but we would usually want stronger evidence than this to draw a definite conclusion. The trouble here is that it is difficult to distinguish precisely and reliably between the curves are the graphs of quite different mathematical functions.\n\nThere is, of course, one curve that is easily recognized by everyone - the straight line! In this situation, the logarithmic function can be used to rewrite the exponential growth formula into a form that will allow us to create a plot that does give a straight line when data is the result of an exponential growth (or decay) process. Start with the exponential growth formula:\n\nN = N0 ekt\n\nSince this involves an exponential with base e, it is "natural" to use natural logarithms - those based on the number e. Using the more common notation ‘ln’ for ‘loge’, we simply take the logarithm of both sides of the previous equation:\n\nln N = ln(N0 ekt)\n\n= ln N0 + ln(ekt)\n\n= ln N0 + kt ln e\n\n= ln N0 + kt\n\nHere, we have used two of the three basic properties of logarithms to manipulate the right-hand side, namely that\n\nlog (AB) = log A + log B \n\nlog (Am) = m log A \n\nFurther, in the last step we took advantage of the fact that by choosing to work with natural logarithms, ln e = logee = 1. Thus, the exponential growth formula can be written in the logarithmic form\n\nln N = kt + ln N0\n\nIf the exponential growth formula is correct and we were to plot ln N along the vertical axis of our graph (rather than N itself), and t along the horizontal axis, then the equation of the plot we are preparing will have the generic form\n\nvertical quantity = constant x horizontal quantity + another constant \n\nBut this is just the equation of a straight line. The plot that results using the data given above is available on web site below.\n\nAlthough the values written on the vertical axis are values of N, this graph is ruled vertically so that the vertical distances are actually proportional to ln N. Since one scale is logarithmic (the vertical one) whereas the other graph scale, the horizontal one, is the ordinary uniform spacing type, this is called a ‘semilogarithmic plot’.\n\nAt any rate, the figure indicates that the points are scattered about a straight line, the scatter due to small random errors in measurement. Since the plot of ln N vs t gives a straight line, we have confirmed that\n\nln N = kt + ln N0 (equation *) \n\nis a valid formula for this data, and therefore, so is its equivalent, N = N0 ekt, valid for this data.
239194
I haven't checked to be sure, but theres a site called 'howstuffworks.com' I believe, and it has diagrams and breakdowns of just about anything. Check it out.
600825
1. Ben...replace the TV as part of warranty and keep the customer happy.\n2. Forget it...unless the contract stipulates that the deposit is returnable within certain period.\n3. If u hv marine insurance..then good. Otherwise clain against shipowner.\n\nSorry...the above may not agree with the term 'Implied Terms'..
452741
The media & the tube????\nPlease! This is where you expect role models to be found, or portraited? \nThe media that focuses on everything that is dark and wrong with mankind.\nThe Media that twists the reality to reflect the political bend of its owners.\nGet a grip.\nThe programming on T.V. is usualy filled with sordid mellow dramas, the scripts of which should only be used as toilet tissue.\n\nRole models will not be found on the TUBE.
828706
I print that out since Friday.\nDo you know the bubble trouble level codes are?\nI e-mail them to you.
608577
Depends on the shape of the object being measured.
15219
Basically, it's a microeconomic concept that explains what kinds of products can be produced using the current technology and production resources of the time. It's usually shown as a concave (bowed out) curve on a graph. On the two axis of the graph, two products are represented. The curve shows how much of each product is produced in the market (or by a particular firm). The curve changes based on the invention of new technologies and resources. Sometimes the advent of new technology and resources favors the production of only one type of product, and therefore a disproportionate amount of that product will be produced (causing the curve to favor that product). Other times, the two products are produced in equal amounts. Here is a textbook definition:\n"A curve showing all combinations of two goods that can be produced with the resources and technology currently available."
152635
You program the data in to a calculator (like a TI-83), graph, and model the data points using an exponential profile.  It will then give you the form of the equation that best fits your data points in the form of a*e^(b*x), which you can then graph over your data points.  In your case, "b" should be negative to indicate decay.
535174
There is often a wide divergence between theory and application.  I remember one application where lengthy mechanical linkages and cables were used to transmit rudder position for a huge seagoing ship in the even that the steering gear room became flooded (and electronic indication was lost).  The system had too much lost motion to indicate rudder position even though it looked good in theory.  I suggested connecting a vertical rod to the rudders that pierced the overhead into the ("unflooded") compartment above which could be connected to a reliable electronic transmitter (similar to existing "flooded" transmitters) and that worked much better.  Even electronic control systems can exhibit unexpected hysteresis when built.
894608
1.  The number of infected computers is\n1 + 20 + 20^2 + 20^3 + ... + 20^n\nwhere n is the number of 5 minute intervals that have elapsed.\n\nThis is a geometric series with n+1 terms, whose sum is\n(20^(n+1)-1)/(20-1)\n\nPut this equal to 10^8 and solve\n[after you get 20^(n+1) = 19*10^8, take logs of both sides.]\nAlternatively you could just evaluate the sum formula for n = 4, 5, .. until the result exceeds 100 million, and multiply your value of n by 5 minutes.\n\n2.  Use your calculator or a spreadsheet to evaluate these functions.  Then just plot the points you got and draw a curve (or in one case a line) through them. e.g.\n\nFor the first one you get -3, -7, 9, 305, 3297.  Not a good example, but you plot the points\n(1, -3) (2, -7) (4, 9) and the others are off the page.  Not a good question, the others will be easier to graph.  For this one, you also need to work out the value for x = 0 [f(0) = 1, right?]\nand x = -1  ?[f(-1) = -1?  You get that?]\nThen you  draw a curve that goes up to a peak just before coming down through (0,1), then goes through a trough between (2, -7) and (4, 9).\n\nAs for classifications, some of them are too obvious to be able to give a reason for.  The first one is polynomial, you should find one of them is linear "because its graph is a straight line"; one is quadratic because its highest power is x^2, or its graph is a parabola; the one with e is exponential; the one with log is logarithmic.  Do the last part yourself by looking at the graphs and just making commonsense judgements.