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. D

    Understanding Pure Monadic Schemata

    My current understanding of schemata and structures in monadic logic is that, for example, if there are two predicate letters F and G that there would be (2*2)^the size of the universe of discourse possible structures as each object in that universe of discourse could take on any of the 4...
  2. R

    How many pure numbers relate to elementary particles?

    Can someone give a list of all the pure numbers that relate to elementary particles (such as the fine-structure constant)? How many such numbers are there? Is it likely that more will be discovered? Thanks
  3. L

    Electric field of a pure electric dipole

    Homework Statement find components of the electric field of a pure electric dipole (r>>a)Homework Equations potential = \varphi(r)=2aqP1(cos\Theta)/4\pi\epsilonor2The Attempt at a Solution do i just have to find the negative gradient of the potential here? i think that's the right thing to do...
  4. P

    Pure state versus superposition

    I am a little bit versed in the formalism of Hilbert space, the state vector and the matricies and their eigenvector basis of observables in QM. I understand that a pure state in one observable basis may be (is) a superposition in another basis (spin xUP) is superposition of spinyUP, spin yDOWN...
  5. D

    How Can I Make a Pure Sine Wave Inverter with Limited Voltage and Current?

    Hi i am a 3rd year electrical student, i have a limited knowledge about inverters. i am trying to make a pure sinewave inverter, my intial spec was to create a 1) boost converter dc to dc 2) 3 stage pwm using a bubba oscillator etc 3) using a filter. my supervisor for the project said i could...
  6. I

    Programs Will these courses will be good enough preparation for a pure math PhD program?

    I'm currently a freshman and these are all the math courses I plan on taking in 4 years. Undergrad: - Calc II (taken), Calc III, Linear Algebra I, Linear Algebra II, Real Analysis I, Real Analysis II, Ordinary Differential Equations, Intro to Abstract Algebra, Complex Variables, Survey of...
  7. Useful nucleus

    How hard is it to be an engineer and pure mathematician?

    I was wondering whether it is possible for an engineer with a PhD to learn pure mathematcis in depth to a level that enables him/her to use some ideas or line of thinking from pure mathematics into engineering and vice versa (if the vice versa is actually possible). Or is it completely...
  8. C

    What to learn in pure math for applied math?

    So I finished my undergrad last year in applied math and physics. I'm currently applying to applied math phD programs (but they are separate depts from the pure math depts). I don't exactly what I want to focus on, but I was thinking something in mathematical physics, PDEs, functional analysis...
  9. D

    Speculative Question about Pure Fusion

    Okay, you all are my last hope, as my last brain cell just dripped out of my ear from searching and calculating. I am needing a scenario for a novel, one where I'd like to get the physics for the detonation portion at least mostly accurate. I wish to employ a pure fusion weapon -- yes, I...
  10. A

    Complex conjugate zeros in pure RC ckt

    Hi, Is there a possibility of getting a complex conj zeros in pure RC ckt. we never get complex conj poles but how about complex conj zeros. regards, Asif
  11. J

    Mixed states and pure states: what's the difference?

    Hi, this is probably a straightforward question over something simple but it's confusing me. I don't get what the difference is between a mixed state, a superposition and a pure state. I'm looking through my notes about density operators and it's talking about a qubit system where |0> =...
  12. H

    Where exactly is pure blue (in nanometers)?

    Which wavelength of light will look blue without any bias toward cyan or violet? I know it's somewhere around 460nm but I don't know exactly where it is. And if you happen to know the same for green (not in any way cyanish or yellowish), please let me know.
  13. J

    Programs Chances of getting into a regular pure math PhD program

    Hi everyone. I want to get into an okay PhD program for pure math (analysis or algebra). I don't care if it is a lowly university, just so it is accredited. What are my chances of getting into such a program with funding? To how many universities should I apply? My background is as follows...
  14. M

    Add carbon atom to pure hydrogen

    Looking for ideas that allow me to create Methane ( CH4 ) from gaseous hydrogen. This requires bonding one carbon atom to four hydrogen atoms, which should be simple enough, but there needs to be a minimum explosive danger. I know there are appliances to go the other way, but don't have the...
  15. C

    I can't figure out why this happens with pure substances. My book is a

    I can't figure out why this happens with pure substances. My book is a piece of junk, perhaps someone could recommend a better book. But why does water, for example, sublime below triple-point pressures? If I'm below triple point pressure and I add energy to solid water, there should be a...
  16. D

    Example of a pure existence metaproof

    Example of a "pure existence metaproof" http://en.wikipedia.org/wiki/Existence_theorem A pure existence theorem is a theorem which states the existence of something, but the proof of the theorem does not indicate a construction of the thing in question. As the article mentions, this is...
  17. M

    Engineering Pure science degree Vs Engineering (or both)

    Hi all, I have loved science since primary school and want to pursue it as a career, but as I also love building things I was thinking engineering. The good salary also pushes me towards engineering. So I thought I had decided on chemical engineering, but I was afraid that the course would...
  18. R

    Choosing Between Math and Physics: A Crossroads for a BS in Pure Math

    I am at a crossroads. I have a BS in pure math and I am in a masters in stats. Not sure what to do my thesis on yet. The tear is between continuing with math and going into mathematical physics or crossing over to theoretical physics. I have a good idea what both are, but have never done...
  19. S

    What are the allowed transitions in the pure rotational spectra of CO2 molecule?

    I know that the selection rule is : \DeltaJ = +/- 1 but our prof said that according to some quantum mechanical calculations the odd values of J are not allowed. So, the allowed transitions are : J 0 <-> 1 ; 2 <-> 3 ; 4 <-> 5... as...
  20. U

    A level Further Pure Maths help (Polynomials)

    Homework Statement Find the values of Σ(a^2), Σ(1/a), Σ(a^2)(B^2) and ΣaB(a + B) for: x^4 - x^3 + 2x + 3 = 0 Homework Equations Σa = 1, ΣaB = 0, ΣaBC = -2, aBCD = 3 The Attempt at a Solution I found the Σ(a^2) and Σ(1/a) successfully correct bt could neither find Σ(a^2)(B^2)...
  21. T

    Applied and Pure mathematics with focus on modelling

    Hi, I am in need of some expert advice please. I am enrolling for my honours degree in mathematics next year. I am trying to mix it up in order to have a strong foundation in pure mathematics with specialisation in applied mathematics. My interests are financial mathematics, probability...
  22. M

    Why do people prefer engineering/applied science over pure science?

    Hi, I am a physics undergraduate student, and was wondering why so many people would prefer to become an Electrical Engineer or Mechanical Engineer as opposed to a Theoretical Physicist or a Mathematician or a Biologist? What attracts you to the applied science fields so much (APART FROM...
  23. C

    How many hydrogen atoms are there in a 5 sample of pure hydrogen?

    How many hydrogen atoms are there in a 5 sample of pure hydrogen?
  24. S

    Understanding Mixed States, Pure States

    This question is from an example taken from Zurek 1991 (Decoherence and the Transition from Quantum to Classical). Start with a spin state of an electron, \Psi= a|+> + b|-> Question 1: Why is this considered a pure state? I figured it would not be called "pure" since it is a superposition...
  25. J

    Can a super being create a pure random number generator?

    The only requirement is that the pure random numbers generated have to be purely random to its creator, not for some other inferior species. (To keep Evo happy, a super being is someone who is omniscient and omnipotent.)
  26. S

    Physics Trying to decide between phd in pure physics or phd neuroscience (AI related)

    I'm currently a graduate student doing theoretical physics at a tier 1 school. I'm trying to decide between these two. 1) stay in pure physics PROS: - since I've already taken field theory, I can start doing research quickly - will probably learn some useful simulation skills (I'm...
  27. H

    Creating a DC/AC Inverter with Pure Sine Wave Output

    Hello, Am trying to make dc/ac inverter with pure sine wave output, while am searching i found an IC which is SG3524 which can generate a pwm signal. Is it a good choice for pure sine wave output, and what is the difference between the pwm signal generated by micro controller and the pwm...
  28. R

    Is a Pure Math Degree Enough for Biomedical or Aerospace Engineering?

    Hi everyone. I have recently completed a 4 year mathematics pure mathematics degree from Australia. I am now very interested in studying in an engineering field. I am most drawn to the idea of biomedical or aerospace engineering. However I am having a difficult time trying to figure out a...
  29. S

    Producing Pure Na with NaOH - Ideas & Tips

    Hello, I need to get around 100g of pure Na but this metal is not available, or I don't know where to find it. My idee is to take NaOH and using electrolyze process to get the Na. Basically I what to put put NaOH in a jar filled with water and then to start the electrolyze. What do you...
  30. U

    How would you use chromatography to determine whether an unknown pure liquid....

    Homework Statement How would you use chromatography to determine whether an unknown pure liquid is 1-pentene, cis-2-pentene, or trans-2-pentene? Homework Equations The Attempt at a Solution I looked up the boiling points of the three and see that 1-pentene is lower, but the cis...
  31. L

    What is Shear? Understanding Pure Shear

    what is shear? from looking at books etc i understood that the shear of a direction was the change of angle. but then pure shear doesn't have a change in angle between the axes, its just stretched in one direction and contracted in the other. so why is this called pure shear? I am rather...
  32. D

    Programs PhD in Pure Math with BSc in CSE

    I am unsure there is any thread similar to this. Today in morning I was making a thread but I can not find it. Anyway, When I enrolled to CSE I was crazy about it but gradually I found myself in love of Math and I also found I am actually not good in CSE but in Math. I read in the best uni of my...
  33. T

    Plot the graphs of power dissipated in pure resistor

    I am trying to plot the graphs of power dissipated in pure resistor , pure capacitor and pure inductor against time . My question is when i plot the voltage and current graph for pure resistor , i know they are in the same phase , but V0 is greater or Io is greater , i think Vo is greater...
  34. T

    Why Must Voltage & Current Have a π/2 Phase Difference in Pure Circuits?

    My book saya that in a pure circuit , the phase difference between the voltage and current must be pi/2 , otherwise it is not pure . Why it is so ? What is a pure circuit by the way ?
  35. C

    Converting 60KG into Light: Calculating Energy in Terms of Kilotons of TNT

    Is light "pure" energy? I've been working out how much energy 60KG of material is equivalent to. However it strikes me as a possibility that I should not be using E=MC^2 because what I actually want to calculate is 60KG equivalent in light. Is there a factor I need to incorporate? I am...
  36. W

    Solving Algebraic Problems with Non-Defined Terms: Real World Significance?

    Hi All, I'm currently teaching Intermediate Algebra and have taught the class how to solve algebraic problems where a denominator such as (x-2) exists. In other words, the term is not defined at x=2. Now say that the alleged solution to the problem is x=2. In that case, the correct...
  37. D

    Programs Which major to compliment physics degree? Applied or pure math?

    Hi. I'm entering university this year and planning to do a double degree. My chief aim would be theoretical physics. I'm facing the dilemma that my university's math department offers Mathematics and Applied Mathematics. Since I hope that my second degree would compliment and strengthen my...
  38. J

    Books for beginning to learn Pure Mathematics

    For a while now I have been looking for a series of texts that I can read in order to learn some of the basics of abstract/pure mathematics. I am currently taking Calculus II with Stewart's book as my text, and this summer I plan on going through Spivak's Calculus. I have finished my...
  39. F

    Math Pure Math Bachelors Career Options

    Hello, What careers outside of academia can one hope to find with a bachelor's degree (Honours with GPA>3.5) or even a graduate degree in pure math? Let's assume I've taken Cal 1-2-3, Linear Algebra, Diff. Eqns, Metric spaces and topology, complex analysis, real analysis, discrete mathematics...
  40. M

    The Possibility of "Pure" Planets

    "Pure" planets? What is the likelihood of a planet being almost entirely one element? Is it possible to have a planet that is purely water?
  41. E

    Charge on Capacitor in Pure Capacitance Circuit?

    Homework Statement I apologize for having to upload an attachment but I couldn't describe this circuit. Basically, there is set of capacitors and the question is asking for the charge on one of them, when a 72 volt source is attached. All capacitances are 8.9 microFarads. Homework...
  42. S

    Understanding Decoherence and Pure to Mixed Transitions

    Hi, I keep confusing myself between decoherence and the transition from pure to mixed, both of which, as far as I know, come about due to the interaction of a system with the environment. I like to think about things in terms of the density matrix to get it solid in my head. Can someone...
  43. Truecrimson

    Programs PhD in science & technology education, but postdoc in pure science

    Is this the right subforum? This is my friend's question but he is not very fluent in English. He has a bachelor degree in biology and now he is working towards a PhD in science (biology-oriented) and technology education in a Southeast Asian university. However, it seems that his true...
  44. Artlav

    What is the difference between mixed light and pure light?

    Mixed light and "pure" light? We all know from our young days that mixing paints give you different colors, like yellow and blue gets green. What i wondered about is what kind of light will it be? If you shine blue and yellow light on something, you will see green. There is also not much...
  45. A

    Can Pure Oxygen in a Pipeline Cause Fire?

    Hi all, if you have very pure oxygen (+99%) in your pipeline. HOW does the velocity of the oxygen causes fire in the pipeline? Thanks!
  46. A

    Graph Theory: Pure or Applied?

    Hi Is graph theory a more pure or applied subject? I thought it was pure but now I am confusing myself because it has so many applications. Thanks
  47. C

    Homeopathic remedies can be easily distinguished from the pure solvent

    Homeopathic remedies "can be easily distinguished from the pure solvent"...
  48. O

    What is the most efficient way to collect pure gas bubbles without pumps?

    Homework Statement I am attempting to collect bubbles that are being produced under the water surface. The bubbles are natural gas, lighter than air I can collect the by bubbles by directing them into a funnel and up a hose and into an airtight collection vessel. I want to know what pressure...
  49. S

    Chances of acceptance (M.Sc, pure math) / personal statement advice

    Hello, I'm finishing up my personal statement for grad school, and wondering how much the things I'm worried about we also be cause for concern for the admission's committees? Briefly, my background is this: I switched to mathematics late, and did very few of the 1st/2nd year courses. My...
  50. K

    Pure Sine Wave Inverter design

    I would like to design a Pure Sine wave inverter for DC to AC rectification. I want to drive motors with this applicaiton. (At most 120VAC .5HP) I don't want to specify too much, because the main point here is design basics. With the right information, I should be able to design accordingly. I...
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