enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Non-Newtonian fluid - Wikipedia

    en.wikipedia.org/wiki/Non-Newtonian_fluid

    Time-dependent self-similar analysis of the Ladyzenskaya-type model with a non-linear velocity dependent stress tensor was performed [5] unfortunately no analytical solutions could be derived, however a rigorous mathematical existence theorem [6] was given for the solution.

  3. Azeotrope tables - Wikipedia

    en.wikipedia.org/wiki/Azeotrope_tables

    This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.

  4. Azeotrope - Wikipedia

    en.wikipedia.org/wiki/Azeotrope

    An azeotrope (/ ə ˈ z iː ə ˌ t r oʊ p /) [1] or a constant heating point mixture is a mixture of two or more liquids whose proportions cannot be changed by simple distillation. [2] This happens because when an azeotrope is boiled, the vapour has the same proportions of constituents as the unboiled mixture.

  5. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.

  6. Grinberg's theorem - Wikipedia

    en.wikipedia.org/wiki/Grinberg's_theorem

    Since there is no way of partitioning the faces into two subsets that produce a sum obeying Grinberg's theorem, there can be no Hamiltonian cycle. [1] For instance, for the graph in the figure, all the bounded faces have 5 or 8 sides, but the unbounded face has 9 sides, so it satisfies this condition on numbers of sides and is not Hamiltonian.

  7. Zeotropic mixture - Wikipedia

    en.wikipedia.org/wiki/Zeotropic_mixture

    In other words, the mixture has a temperature glide, as the phase change occurs in a temperature range of about four to seven degrees Celsius, rather than at a constant temperature. [3] On temperature-composition graphs, this temperature glide can be seen as the temperature difference between the bubble point and dew point. [4]

  8. Partial molar property - Wikipedia

    en.wikipedia.org/wiki/Partial_molar_property

    Water and ethanol always have negative excess volumes when mixed, indicating the partial molar volume of each component is less when mixed than its molar volume when pure. The partial molar volume is broadly understood as the contribution that a component of a mixture makes to the overall volume of the solution. However, there is more to it ...

  9. Phase diagram - Wikipedia

    en.wikipedia.org/wiki/Phase_diagram

    Such a mixture can be either a solid solution, eutectic or peritectic, among others. These two types of mixtures result in very different graphs. Another type of binary phase diagram is a boiling-point diagram for a mixture of two components, i. e. chemical compounds.