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  2. Membrane transport protein - Wikipedia

    en.wikipedia.org/wiki/Membrane_transport_protein

    A carrier is not open simultaneously to both the extracellular and intracellular environments. Either its inner gate is open, or outer gate is open. In contrast, a channel can be open to both environments at the same time, allowing the molecules to diffuse without interruption. Carriers have binding sites, but pores and channels do not.

  3. Hydrological model - Wikipedia

    en.wikipedia.org/wiki/Hydrological_model

    Observed and modelled runoff using the non-linear reservoir model. [38] Physical models use parameters to characterize the unique aspects of the system being studied. These parameters can be obtained using laboratory and field studies, or estimated by finding the best correspondence between observed and modelled behavior.

  4. Thistle tube - Wikipedia

    en.wikipedia.org/wiki/Thistle_tube

    A thistle tube is a piece of laboratory glassware consisting of a shaft of tube, with a reservoir and funnel-like section at the top. Thistle tubes are typically used by chemists to add liquid to an existing system or apparatus. Thistle funnels are used to add small volumes of liquids to an exact position.

  5. Facilitated diffusion - Wikipedia

    en.wikipedia.org/wiki/Facilitated_diffusion

    Facilitated diffusion in cell membrane, showing ion channels and carrier proteins. Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins. [1]

  6. High-performance liquid chromatography - Wikipedia

    en.wikipedia.org/wiki/High-performance_liquid...

    HPLC has many applications in both laboratory and clinical science. It is a common technique used in pharmaceutical development, as it is a dependable way to obtain and ensure product purity. [ 59 ] While HPLC can produce extremely high quality (pure) products, it is not always the primary method used in the production of bulk drug materials ...

  7. Reservoir simulation - Wikipedia

    en.wikipedia.org/wiki/Reservoir_simulation

    Theoretically, finite difference models permit discretization of the reservoir using both structured and more complex unstructured grids to accurately represent the geometry of the reservoir. Local grid refinements (a finer grid embedded inside of a coarse grid) are also a feature provided by many simulators to more accurately represent the ...

  8. Biggest problems facing College Football Playoff remain — and ...

    www.aol.com/sports/biggest-problems-facing...

    The difference between SMU and Alabama was a matter of millimeters — and philosophy. There was no good or bad choice here. Both sides had a decent case, but also self-inflicted negatives.

  9. Reservoir computing - Wikipedia

    en.wikipedia.org/wiki/Reservoir_computing

    The 'reservoir' in reservoir computing is the internal structure of the computer, and must have two properties: it must be made up of individual, non-linear units, and it must be capable of storing information. The non-linearity describes the response of each unit to input, which is what allows reservoir computers to solve complex problems.