Search Constraints

Start Over
Filtering by: Alternative title ssim Report no. 83-9 Remove constraint Alternative title ssim: Report no. 83-9 Decade 1960-1969 Remove constraint Decade: 1960-1969 Resource Type Article Remove constraint Resource Type: Article

Search Results

  • Species composition and distribution of pelagic cephalopods from the Pacific Ocean off Oregon

    Creator:
    Pearcy, William G.
    Abstract:
    Much of our present knowledge about the species composition and distribution of (ephalopods of the Pacific Ocean is derived from collections made on cruises of the "Alba­tross," steamer of the U.S. Fish Commission, During the late nineteenth and early twentieth centuries. "Albatross" collections along the west coast of North America...
    Resource Type:
    Article
    Full Text:
    pavo 0.01 0.14 0.06 day night day night (9 tows) ( 63 tows) ( 14 tows) (9 tows) (C) Gonatus

  • Indian horticulture west and northwest of the Colorado River

    Creator:
    Forbes, Jack D.
    Abstract:
    It has generally been assumed by historians and anthropologists that the indigenous groups living to the west and northwest of the Colorado River were non-horticultural with three or four exceptions: some horticulture among the eastern-most Kamia, among the Chemehuevi who settled at a late date along the Colorado River, and...
    Resource Type:
    Article
    Full Text:
    because of its dry sum- mers, for which, so far as maize was concerned, no amount of winter pre

  • Depth Distribution of Oceanic Shrimps (Decapoda ; Natantia) off Oregon

    Creator:
    Pearcy, William G. and Forss, Carl A.
    Abstract:
    Sixteen species of oceanic shrimps, seven Penaeidea and nine Caridea, appeared in 244 collections made within the upper 1500 m at one station in the northeast Pacific off Oregon. Most of the species were primarily mesopelagic in distribution. The most abundant species, Sergestes similis, was the only shrimp common in...
    Resource Type:
    Article
    Full Text:
    --- --- --- --- --- --- --- --- --- --- --- --- . --- 0-1000 m (26 collections) Total No. 573 38-l 4 2 120 91 388 273 53 21 9 ___________ , ___

  • Partial differential equations of Sobolev-Galpern type

    Creator:
    Showalter, R. E.
    Abstract:
    A mixed initial and boundary value problem is considered for a partial differential equation of the form Muₜ(x, t)+Lu(x, t)=0, where M and L are elliptic differential operators of orders 2 m and 2l, respectively, with m ≤ l. The existence and uniqueness of a strong solution of this equation...
    Resource Type:
    Article
    Full Text:
    PACIFIC JOURNAL OF MATHEMATICS Vol. 31, No. 3, 1969 PARTIAL DIFFERENTIAL EQUATIONS OF SOBOLEV-GALPERN

  • Modulation Transfer Function of Sea Water

    Creator:
    Zaneveld, J. Ronald V. and Beardsley, George F., Jr.
    Abstract:
    The modulation transfer function (MTF) of a simple submarine viewing situation is computed as a function of range and sea-water properties. For the cases considered, we found that the MTF follows the simple exponential law, exp(-ω/ω₀), where ω is the spatial frequency in lines/deg and where ω₀ is a complicated...
    Resource Type:
    Article
    Full Text:
    image-transmission systems, the MTF is dependent on the wavelength, and sea-water systems are no