986 resultados para Water Index


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During Legs 127 and 128, we found a systematic error in the index property measurements, in that the wet bulk density, grain density, and porosity did not satisfy well-established interrelationships. We have found that an almost constant difference exists between the weight of water lost during drying and the volume of water lost. This discrepancy is independent of volume or water content of the sample. The water losses should be equal because the density of water is close to 1.0 g/cm**3. The pycnometer wet volume measurement has been identified as the source of the systematic error. The wet volume on average is 0.2 cm**3 too low. For the rare cases when the water content is negligible, there is no offset. The source of the wet volume error results from the partial vapor pressure of water in the pycnometer cell. Newly corrected tables of index properties measured during Legs 127 and 128 are included. The corrected index properties are internally consistent. The data are in better agreement with theoretical models that relate the index properties to other physical properties, such as thermal conductivity and acoustic velocity. In future, a standard volume sampler should be used, or the wet volume should be calculated from the dry volume and the water loss by weight.

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Included are 372 references on developments in the production of potable water from saline or brackish waters. This literature search is a revision of a previous search, NAA-SR-3737, compiled by Frank G. Bennett IV and contains all references included in the search named above. The report references are arranged alpha-numerically under the corporate authors. The journal references are arranged alphabetically by title following the report references. The literature searched includes: Nuclear Science Abstracts (NSA) through September 1961; Chemical Abstracts through October 2, 1961; Applied Science and Technology Index through September 1961; Engineering Index through 1960; and Monthly Catalog through September 1961.

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"EPA 814/B-96-004."

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Pt. [33] Index bound in v.1.

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Mode of access: Internet.

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Includes index.

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"Contract no. NObsr-72773, Bureau of Ships, Index no. NE-110,000."

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Mode of access: Internet.

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Includes index.