What is Pure: Definition and 499 Discussions

Propulsion Universelle et Récupération d'Énergie (PURE; English: Universal Propulsion and Energy Recovery) was a motorsports engineering company founded by former British American Racing team principal Craig Pollock in 2011. It aimed to design and manufacture engines for use under the 2014 Formula One technical regulations, that mandate a switch from the current normally aspirated V8 engines to turbocharged V6 engines. The company was linked to Mecachrome, and employed former members of Renault and Peugeot's 1990s Formula One engine programmes.In July 2011, the company secured the services of Gilles Simon, formerly head of Scuderia Ferrari's engine department and the FIA technical director for powertrain development. The recruitment was controversial, with several teams and manufacturers – particularly Renault – expressing concerns that Simon's previous position with the FIA would grant him access to sensitive technical data about engine designs that could potentially be used by PURE in the development of their own engine. Simon and PURE rejected these suggestions, stating that the process of developing the 2014 engine regulations had been transparent, and that all parties involved had access to the same information so that no individual group would have an advantage. PURE used Toyota Motorsport's facilities in Cologne, Germany, whilst also maintaining a French base. In July 2012, PURE suspended its engine programme due to a lack of funding and later ceased operations.

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  1. P

    Schools What Can I Expect for Different Years of Graduate School as a Pure Math Major?

    I'm just wondering im going into 2nd year. ..I'm taking Analysis I, Differential Equations Calc III ,Probability all in the same semester and then Abstract Alg I , Linear Alg II , calc IV in 2nd semester Just wondering what I can expect for the differnet years...how much more intense it is
  2. K

    How to convert a 240v gas mig180 welder to pure DC to use gasless wire

    Has anyone got any ideas on how to convert a 240v, mig, 180amp, welder to output pure DC to enable the use of gasless wire.
  3. T

    Math 30 Pure June 2008 Diploma

    Are there any Albertans here who have written the Math 30 P Diploma this June, and would like to discuss it?
  4. L

    Pure Yang-Mills theory in D=1+1

    I was aware that this theory can be solved exactly and is trivial, i.e. there is no dynamics. I was also convinced that this result is due to 't Hooft. Could you confirm this view and put out some relevant refs about? Thanks beforehand. Jon
  5. C

    Exponential regression math 30 pure

    Homework Statement Determine the inverse of the exponential regression equation that you foun in the first bullet. Homework Equations y=ab^x The Attempt at a Solution in the first bullet i got the equation y= (8.7166)(0.93240)^x then i found using logs that x = -5...
  6. H

    What approach? Pure or applied

    I would like the perspective of either a physicist or a mathemtician. Please indicate which you are before posting. When learning mathematics, is it better to follow a strictly rigorous approach? By this I mean such things as being exposed to Calculus via Spivak, Complex variables by...
  7. E

    Programs Importance to me as a pure maths major?

    Ok, I have a few questions here, so hopefully everyone will help me find an answer to these. 1. Firstly, I have just finished my second semester of calculus 2, and am now in the process of teaching myself a semesters worth of multi variable/ intro vector calculus, however, I noticed that we...
  8. A

    Twin Paradox: Understanding Who Ages Less

    We know what is twin paradox is, and also why it is not a paradox, but my question is, "if we can not define absolute motion, how can we decide that the twin which went to space will age less, and not the home one?" That is to say that, when peter at home sees paul's clock moving slow (in...
  9. O

    Find the temperature coefficient of resistivity for pure silicon at T=300K

    Homework Statement I need to find the temperature coefficient of resistivity \alpha for silicon at the temperature of T=300 Kelvin. I am supposed to assume that \tau, the mean time between collisions of charge carriers, is independent of temperature. Homework Equations Temperature...
  10. B

    Pure Qubit Question: Does Alice Fulfill Bob's Demand?

    Hi, One can describe a pure qubit in two ways (onto the bloch-sphere): 1.) one take a (\alpha,\beta) , where \alpha,\beta are complex numbers and \left|\alpha\right|^{2}+\left|\beta\right|^{2}=1. 2.) with a real 3-dimensional unit vector. Bob wants that Alice generate one million random...
  11. S

    About mixed state and pure state

    I don't have any problems dealing with mechanical calculations(I think), but yet I have some conceptual problems with mixed state(= statistical mixture?) and pure state in QM. - pure state : |Φ> = 1/sqrt2 ( |↑> + |↓> ) - mixed state : ρ = 1/2 ( |↑><↑| + |↑><↑| ) What is the difference...
  12. C

    Math 30 pure geometric series

    helo this is a homework problem i got in math 30 pure i got an answer but i would like to know how to get it by using a formula? The exercise gose like this: Initially, a pendulum swings through an arc of 2feet. On each successive swing,the length of the arc is 0.9 of the previous length...
  13. N

    Pure Substances and Van der Waals

    Homework Statement For any Pure Substance, use the relation (1) to show that for a Van der Waals gas, over a range of conditions where c_{v} is effectively constant, that equation (2) gives equations (3) and (4)Homework Equations (1) ~ Tds = du + pdv (2) ~ c_{v}dT + T \frac{\partial...
  14. P

    Are bessel functions pure real?

    Homework Statement I'm wondering if the bessel functions are pure real. What I really want to know is that if the bessel funtions are J and Y (i.e. first and second kinds), and the Hankel functions are H_1=J+iY and H_2=J-iY, then can we say that H_1=H_{2}^{*} where the * denotes complex...
  15. S

    Pure inductor (only) in AC circuit

    Hello, suppose we have a sinusoidal AC source connected to only a pure inductor of self inductance L ( no resistance at all ) ..then emf induced in the inductor is L * dI/dt and is equal and opposite to the applied emf. but if the induced emf opposes the applied emf , then how can there be a...
  16. G

    Where to Find Compression Test Data for Commercially Pure Titanium?

    Can anyone help me find compression test data for pure titanium? I need the stresses from 2% to 10% strain. If you can't get the actual data, a graph would be fine as well. Thanks.
  17. P

    Undecided between Pure and Applied track

    As someone who's interested in the history/ideas of mathematics I'm attracted towards the pure track but I'm also attracted to the job prospects of applied math. Are my impressions wrong? Can one find employment with either concentration, or is the applied track superior in that regard?
  18. D

    Create High Voltage Zero Current Pure Electrostatic Device

    Dear Alls, I need your advice regarding my experiment in producing the High Voltage Zero Current, Pure Electrostatic device. The Input Power/Voltage: 5 Watt/220 Volt The Output Voltage shall be 20.000 Volt The Output Current shall be 0 Micro Ampere. Please assist me in step by step...
  19. G

    Improving Math Grades: Is it Possible to Get Into Math Pure?

    Let's say you're getting 80-90 in the lowest class for math in high school Is there anyway for you to get into Math pure? Oh and another question, let's say a person who got a lower grade then you in Math got into Math pure. Can schools really do that?
  20. M

    How many hours per day does a full-time professor spend on pure research?

    Is it more or less than 6 hours per day?
  21. P

    Is there a hierarchy between pure and applied mathematics?

    I always get the impression that pure maths is more superior meaning harder, grander than applied maths and that the smart people on average go into pure maths. Is this a misconception? Also rarely is it that applied mathematicians switch into pure maths but the vice versa is plentiful. I do...
  22. K

    He Unreasonable Effectiveness of Pure Mathematics

    Hi. I have to write a paper (about 20-25 pages) and I'm likely going to choose the topic 'The Unreasonable Effectiveness of Pure Mathematics' as was suggested by one my prof's (of course, I'm familiar with Eugene Wigner's article). I was curious if anyone could point me towards more modern...
  23. B

    Undergrad Physics and Mathematics (Pure) or Undergrad in ME

    Hi, Lately I've been having second thoughts about whether I want to pursue a career in engineering or a career in math and physics and end up doing research. So here are three questions which i'd like being answered :) 1. Let's say I get a B.Sc in Mathematics and Physics, will I then be...
  24. R

    How Does Electron Density Change Over Time in a Deionized Hydrogen Nebula?

    Homework Statement Consider a nebula of pure hydrogen which is completely ionized and in steady-state (# ionizations/sec = # recombinations/sec) at a constant temperature and density. Suppose the source of the ionizing radiation suddenly “turns off”. Find and graph the electron density as a...
  25. L

    Pure Electron Diffraction Experiments

    Hello, I just read about the the ten most beautiful experiments of all times. The top winner was the double slit diffraction by electrons experience carried out by Claus Jönsson . This electron diffraction experiment, I think, has been chosen as remarquable because it stages the...
  26. L

    Equivalent Simple and Pure Shear: Strain Tensor and Rotation Analysis

    Homework Statement Hello: The question is this: To show that a simple shear is equivalent to a pure shear if tan(\alpha)=k-1/k. Homework Equations The simple shear is given by (ytan(\alpha),0) and the pure shear is (x(k-1), y(1/k-1)) The Attempt at a Solution I thought...
  27. D

    Programs Double Degree: Benefits of Majoring in Pure Math for Chemical Engineering Career

    Hey. I am going to apply to university for next year very soon. At the moment my plan is to apply for a bachelor of engineering (chemical). I was just thinking though, i really like maths, so id like to do a double degree--the engineering, as well as a BSc majoring in pure math (maybe applied...
  28. P

    Pure Rolling: Is Speed of Point of Contact Really 0?

    when we say that in pure rolling the speed of the point of contact is 0 do we really mean it's just absolutely 0 or is it negligible.this may seem strange... but if it's 0 then why does that point ever move.if it ever moves then it's speed is no more 0 ...
  29. S

    Looking for bulk sources of chemically pure sulfur

    For the last several months I've been trying to locate sulfur in bulk so I can try out something called sulfur casting (lost-wax casting using liquid sulfur instead of molten metal). All I've been able to find is five pound bags of something called soil or garden sulfur at nurseries and home...
  30. T

    Pure Math & Phys: Aleks' Experience and Advice

    I have recently switched from Eng Phys to Math and Phys (double honours) with minor in Comp Sc. to start in the next semester, my 2nd year. I can imagine how anyone could mention that I threw most of my chances for a normal, based on employement life. What can I say? I just couldn't help...
  31. P

    Theoretical physics or pure maths?

    Results just came in. I did 2 pure maths, metric spaces 51% & algebra 59%, Partial differential equations 79% and 2 advanced theoretical physics, QM 71% & Stat mech 74% all at the third year level. The scores are exam scores. I like pure maths but find them hard. I usually have trouble doing...
  32. S

    Is an Ice/Water Mixture Preferred Over Pure Ice in the Crystallization Process?

    In the crystallization process after gravity filtration is carried out, a mixture of ice and water is sometimes used as a bath instead of just ice. I know that the ice/water bath can be used to cool the filtrate to around 0 C while just crushed ice or an ice-salt bath may cool the filtrate to...
  33. O

    Which is more difficult: pure or applied mathematics?

    How would you compare applied and pure mathematics? Is one more difficult than the other? What is the general difference? What do you think is the most interesting field of those two? Can someone who is bad at using applied math, be more capable of pure math and vice versa? ("Theoretical"...
  34. P

    Hardest upper undergraduate pure maths subjects?

    Which undergraduate pure maths subject do people find the most challenging? I thought I might just list the three major areas, analysis, algebra, topology.
  35. S

    Prime number problem, pure maths, explain this solution

    Homework Statement Prove that for every k >= 2 there exists a number with precisely k divisors. I know the solution, but don't fully understand it, here it is; Consider any prime p. Let n = p^(k-1). An integer divides n if and only if it has the form p^i where 0<= i <= (k-1). There...
  36. T

    How Can I Purchase Pure Elements?

    I want to know how one purchases pure elements. Like Caesium or Neon or Chlorine. Do you need license to purchase some elements? Or do you need to be affiliated to some sort of organization? Where is a site that has prices for the elements? Just curious how one gets a hold of these...
  37. WolfOfTheSteps

    Programs EE with Pure Math Minor - Which Math Sequence is best?

    Hello everyone, I'm an EE undergraduate and I'm specializing in Signals and Systems. I'm also minoring in pure math. So, in the fall I have to begin a 3-quarter sequence in one of the following math subjects: Abstract Algebra Real Analysis Probability Each of these subjects...
  38. J

    Opinions on this Pure Math/Finance Program

    Opinions on this "Pure Math/Finance" Program I know that most people on these boards are more familiar with physics and engineering-type programs, but who knows... http://www.math.uwaterloo.ca/PM_Dept/Undergrad/Academic/Plans/pm_finance.shtml" Does this program seem like one that'll have...
  39. K

    Rolling disk, energy before pure rotational?

    Suppose a solid disk of radius R is given an angular speed about an axis through its center and then lowered to a horizontal surface and released, the coefficient of friction between disk and surface is u. What is the distance traveled before pure rolling occurs? Conservation of Momentum...
  40. P

    Best comprehensive Reference Book for Pure Math?

    For those of you who don't know, "Formulas and Theorems" is basically a compilation of thousands of math theorems, 6000+ formulas, with a summary of their proofs, covering most of what was known in the late 18th century. What I'm looking for is a comprehensive reference book with worked...
  41. O

    Nonselfish Reasons to Pursue Pure Mathematics

    Can you give me a nonselfish reason to study pure mathematics? How does one justify spending an entire life pushing around symbols and definitions which may have no connection to the physical world? I enjoy doing math, but I also enjoy playing chess and minesweeper, and even if someone were to...
  42. S

    Is Berkeley's Prestige in Pure Math Well-Earned Compared to UCLA?

    I know Berkeley has a slight edge in the "prestige" factor, but is this edge well-earned? Is there a significant difference in the quality of instruction and opportunities for research at these two institutions, particularly in the pure math department? Is there much difference in the...
  43. P

    Incompetent pure maths researcher?

    Is it true in general that if someone who does not show any talent in maths during school (i.e. performs average in maths competitions and tests) will not succeed in pure maths research if that person chooses to do so? Hence that person is not likely to become a professor if he/she chooses to be...
  44. P

    Pure Shear Questionthanks for your help

    Homework Statement Hey everyone. I was practicing some problems, and I came across one that seems pretty simple, yet I am having difficulty proving the answer. The question asks us to show that a state of pure shear causes no volume change in linear elastic deformation. I have a very good...
  45. C

    How will computers impact pure mathematics in the future?

    I am interested to know everyones thought's about the role of computers in pure mathematics. What is the distinction between computer science and mathematics? "Computer science is no more about computers then astronomy is about telescopes."
  46. T

    How does one acquire isotopically pure elements?

    How would one acquire an isotopically pure sample of an element? Are some available for direct purchase, or would it have to be done in-house with some sort of large centrifuge apparatus? (Im thinking about transition metals, not actinides)
  47. G

    Pure math in astrophysics-Suggestions needed

    pure math in astronomy-astrophysics.Suggestions needed Hello, I am an undergraduate student of mathematics, and I'm interested in astrophysics-in a level of watching documentaries (no scientific knowledge). I want to have graduate studies, I like the idea of astronomy-astrophysics (even...
  48. B

    So the top quark is pure mass, with no internal structure, as heavy as a gold nuclei?

    The gold nucleus has an atomic mass of 197 with 79 protons and 118N and 79 electrons. The top quark has about the same mass, but no internal structure. It's just a particle with pure mass. Why would a structure of pure mass and nothing internal decay?
  49. P

    Fast ODE Solver in Pure C: A Google Search

    does anyone know of a fast ode solver in pure C? a google search yields many solvers, but mostly in fortran...
  50. K

    Making Ultra Pure H2O: Exploring Techniques

    Hi Are there any techniques out there to make ultra pure H2O? Reverse osmosis looks interesting, but it doesn't make ultra pure H2O.
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