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  2. Effective medium approximations - Wikipedia

    en.wikipedia.org/wiki/Effective_medium...

    There are many different effective medium approximations, [5] each of them being more or less accurate in distinct conditions. Nevertheless, they all assume that the macroscopic system is homogeneous and, typical of all mean field theories, they fail to predict the properties of a multiphase medium close to the percolation threshold due to the absence of long-range correlations or critical ...

  3. Wallace rule of nines - Wikipedia

    en.wikipedia.org/wiki/Wallace_rule_of_nines

    To estimate the body surface area of a burn, the rule of nines assigns BSA values to each major body part: [3] This allows the emergency medical provider to obtain a quick estimate of how much body surface area is burned. For example, if a patient's entire back (18%) and entire left leg (18%) are burned, about 36% of the patient's BSA is affected.

  4. Circular segment - Wikipedia

    en.wikipedia.org/wiki/Circular_segment

    A circular segment (in green) is enclosed between a secant/chord (the dashed line) and the arc whose endpoints equal the chord's (the arc shown above the green area). In geometry , a circular segment or disk segment (symbol: ⌓ ) is a region of a disk [ 1 ] which is "cut off" from the rest of the disk by a straight line.

  5. Mean free path - Wikipedia

    en.wikipedia.org/wiki/Mean_free_path

    where ℓ is the mean free path, n is the number of target particles per unit volume, and σ is the effective cross-sectional area for collision. The area of the slab is L 2, and its volume is L 2 dx. The typical number of stopping atoms in the slab is the concentration n times the volume, i.e., n L 2 dx. The probability that a beam particle ...

  6. Effective mass (solid-state physics) - Wikipedia

    en.wikipedia.org/wiki/Effective_mass_(solid...

    The effective mass is used in transport calculations, such as transport of electrons under the influence of fields or carrier gradients, but it also is used to calculate the carrier density and density of states in semiconductors. These masses are related but, as explained in the previous sections, are not the same because the weightings of ...

  7. AirTags are cheaper today than they've been all year — only ...

    www.aol.com/lifestyle/airtags-are-cheaper-today...

    AirTags are incredible—they keep you from losing your important things (like keys, wallets, and even phones). And today, you can score your own four-pack for a jaw-dropping 30% discount.

  8. Emergency medical responder levels by U.S. state - Wikipedia

    en.wikipedia.org/wiki/Emergency_medical...

    The use of the terms "EMT-Intermediate/85" and "EMT-Intermediate/99" denotes use of the NHTSA EMT-Intermediate 1985 curriculum and the EMT-Intermediate 1999 curriculum respectively. In addition, not all states use the "EMT" prefix for all levels (e.g. Texas uses EMT-Paramedic and Licensed Paramedic).

  9. QB Room: If the Eagles implode again, they can thank the ...

    www.aol.com/sports/qb-room-eagles-implode-again...

    During the game, Brown could be seen showcasing what appeared to be frustration. Afterward, he stamped them with a sledgehammer, giving short, suggestive answers that seemed to put Hurts very much ...