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  2. Explosives shipping classification system - Wikipedia

    en.wikipedia.org/wiki/Explosives_shipping...

    Series 5 tests are used to determine if an article can be assigned to HD1.5 'Very Insensitive Explosive'; series 6 tests are used to determine the classification of an article within Hazard Divisions 1.1, 1.2, 1.3, or 1.4; and series 7 tests are used to determine if an article can be assigned to HD 1.6 as an article containing predominantly ...

  3. List of Schedule I controlled substances (U.S.) - Wikipedia

    en.wikipedia.org/wiki/List_of_Schedule_I...

    This is the list of Schedule I controlled substances in the United States as defined by the Controlled Substances Act. [1] The following findings are required for substances to be placed in this schedule: [2]

  4. Enhanced Data rates for GSM Evolution - Wikipedia

    en.wikipedia.org/wiki/Enhanced_Data_Rates_for...

    In GPRS, the Coding Schemes CS-1 to CS-4 specify the number of parity bits generated by the cyclic code and the puncturing rate of the convolutional code. [5] In GPRS Coding Schemes CS-1 through CS-3, the convolutional code is of rate 1/2, i.e. each input bit is converted into two coded bits. [5]

  5. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    D, E, and F blocks covered huge areas of the country, typically several states at a time, and covered 2 × 5 MHz for D and E blocks, 2 × 10 MHz for F. [5] The 700 MHz band was auctioned in early 2008 using spectrum previously used by television stations' analog broadcasts, with Verizon Wireless and AT&T Mobility winning the majority of ...

  6. National Geographic Society – Palomar Observatory Sky Survey

    en.wikipedia.org/wiki/National_Geographic_Society...

    Innumerable astronomical objects were discovered by astronomers studying the NGS-POSS photographs. In 1986, work was begun on a digital version of the NGS-POSS. Eight years later, the scanning of the original NGS-POSS plates was completed. The resulting digital images were compressed and published as the Digitized Sky Survey in 1994. The ...

  7. Fireworks policy of the United States - Wikipedia

    en.wikipedia.org/wiki/Fireworks_policy_of_the...

    The BATFE and most states performed a direct substitution of Shipping Class 1.3 for Class B, and Shipping Class 1.4 for Class C. This allows some hazardous items that would have previously been classified as Class B and regulated to be classified as Shipping Class 1.4 due to some packaging method that confines any explosion to the package.

  8. STO-nG basis sets - Wikipedia

    en.wikipedia.org/wiki/STO-nG_basis_sets

    STO-nG basis sets are minimal basis sets, where primitive Gaussian orbitals are fitted to a single Slater-type orbital (STO).originally took the values 2 – 6. They were first proposed by John Pople. A minimum basis set is where only sufficient orbitals are used to contain all the electrons in the neutral atom. Thus for the hydrogen atom, only a single 1s orbital is needed, while for a carbon ...

  9. Silsesquioxane - Wikipedia

    en.wikipedia.org/wiki/Silsesquioxane

    Although, heptahedral F is less favorable energetically (MM2 data), in this case its creation is forces by the formation of a new Si 4 O 4 moiety from much more less stable substrates D and E. [8] Reaction of OAS-POSS-Cl with CF 3 SO 3 H in DMSO. B-E constitute intermediates isolated during A → F cage-rearrangement.