enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Bioconcentration - Wikipedia

    en.wikipedia.org/wiki/Bioconcentration

    Fugacity and BCF relate to each other in the following equation: = [6] where Z Fish is equal to the Fugacity capacity of a chemical in the fish, P Fish is equal to the density of the fish (mass/length 3), BCF is the partition coefficient between the fish and the water (length 3 /mass) and H is equal to the Henry's law constant (Length 2 /Time 2) [6]

  3. 17-animal inheritance puzzle - Wikipedia

    en.wikipedia.org/wiki/17-animal_inheritance_puzzle

    A variant of the story has been told with 11 camels, to be divided into 1 ⁄ 2, 14, and 1 ⁄ 6. [22] [23] Another variant of the puzzle appears in the book The Man Who Counted, a mathematical puzzle book originally published in Portuguese by Júlio César de Mello e Souza in 1938. This version starts with 35 camels, to be divided in the ...

  4. Partition of a set - Wikipedia

    en.wikipedia.org/wiki/Partition_of_a_set

    [6] [7] The partition lattice of a 4-element set has 15 elements and is depicted in the Hasse diagram on the left. The meet and join of partitions α and ρ are defined as follows. The meet α ∧ ρ {\displaystyle \alpha \wedge \rho } is the partition whose blocks are the intersections of a block of α and a block of ρ , except for the empty set.

  5. 1,4-Naphthoquinone - Wikipedia

    en.wikipedia.org/wiki/1,4-Naphthoquinone

    1,4-Naphthoquinone acts as strong dienophile in Diels-Alder reaction.Its adduct with 1,3-butadiene can be prepared by two methods: 1) long (45 days) exposure of naphthoquinone in neat liquid butadiene taken in huge excess at room temperature in a thick-wall glass tube or 2) fast catalyzed cycloaddition at low temperature in the presence of 1 equivalent of tin(IV) chloride: [5]

  6. 1,4-Butane sultone - Wikipedia

    en.wikipedia.org/wiki/1,4-Butane_sultone

    1,4-butane sultone is a six-membered δ-sultone and the cyclic ester of 4-hydroxybutanesulfonic acid.As a sulfo-alkylating agent, 1,4-butanesultone is used to introduce the sulfobutyl group (–(CH 2) 4 –SO 3 −) into hydrophobic compounds possessing nucleophilic functional groups, for example hydroxy groups (as in the case of β-cyclodextrin [1]) or amino groups (as in the case of ...

  7. Arithmetic progression - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_progression

    Arithmetic progression. An arithmetic progression or arithmetic sequence (AP) is a sequence of numbers such that the difference from any succeeding term to its preceding term remains constant throughout the sequence. The constant difference is called common difference of that arithmetic progression. For instance, the sequence 5, 7, 9, 11, 13 ...

  8. 1,2,3,4-Butanetetracarboxylic acid - Wikipedia

    en.wikipedia.org/wiki/1,2,3,4-Butanetetra...

    1,2,3,4-Butanetetracarboxylic acid is an organic compound with the formula HO 2 CCH 2 CH(CO 2 H)CH(CO 2 H)CH 2 CO 2 H. It is one of the simplest stable tetracarboxylic acids. The compound exists as two diastereomers, meso and the (R,R)/(S,S) pair. All are white solids. The compound is produced by oxidation of tetrahydrophthalic anhydride. [1]

  9. British Standard Whitworth - Wikipedia

    en.wikipedia.org/wiki/British_Standard_Whitworth

    British Standard Whitworth. British Standard Whitworth (BSW) is an imperial-unit -based screw thread standard, devised and specified by Joseph Whitworth in 1841 and later adopted as a British Standard. It was the world's first national screw thread standard, and is the basis for many other standards, such as BSF, BSP, BSCon, and BSCopper.