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  • Articles  (190)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (106)
  • Electrical Engineering, Measurement and Control Technology  (47)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (37)
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  • Articles  (190)
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  • 1
    Electronic Resource
    Electronic Resource
    A falling head permeameter for the measurement of the hydraulic conductivity of granular solids (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 3942-3946 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A falling head permeameter is described in which pairs of infrared emitters and detectors on a sight tube are used to measure the flow rate associated with the passage of water through a granular solid under the action of a diminishing pressure head. An equation relating pressure head to elapsed time is derived from which permeability may be calculated. In order to verify the accuracy and sensitivity of the instrument, permeability measurements carried out on a graded quartz sand are compared to those obtained by the more conventional constant head measurement. Excellent agreement is obtained between the permeability values obtained using both measurement methods. Experimental results are also reported for the measurement of the permeability of a range of sieved sand fractions. The falling head permeameter described here is particularly suitable for the measurement of the hydraulic conductivity of granular solids such as sands and soils through which a high flow rate may be expected. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1310349
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  • 2
    Electronic Resource
    Electronic Resource
    Normal and pathological conditions which may alter the human requirement for vitamin B6 (1972)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 20 (1972), S. 498-505 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60181a026
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  • 3
    Electronic Resource
    Electronic Resource
    Insertable biplanar gradient coils for magnetic resonance imaging (1991)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 62 (1991), S. 2639-2645 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Insertable planar gradient coils offer the potential for significant performance increases in magnetic resonance imaging through higher gradient strength and shorter rise times. Using variational methods to minimize inductance, and thereby to optimize switching speeds, we have analyzed and constructed a biplanar y-gradient coil for insertion into a solenoidal magnet system where z is the magnet axis. We have also analyzed biplanar x-gradient and z-gradient coil designs using the same methods. These biplanar coils offer an advantage over a cylindrical coil of comparable diameter in that they achieve high gradient strengths with relatively short rise times while maintaining patient access. Although the requirement that the currents for the x gradient lie in the same plane as for the y and z gradients increases the stored energy by a factor of 3 with respect to the other two gradients, this stored energy is still smaller by a factor of 2 than that of a comparably constrained x-gradient cylindrical coil. The biplanar coil design offers improved linearity over its single planar coil alternative. The particular designs we have investigated are generally limited to small-volume imaging.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142245
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  • 4
    Electronic Resource
    Electronic Resource
    Photon statistical properties of visible laser diodes (1987)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 58 (1987), S. 928-931 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We investigate the factorial moments and photon correlation properties of two Sharp Corporation 780-nm laser diodes and assess their suitability for use in photon counting and correlation experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139578
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  • 5
    Electronic Resource
    Electronic Resource
    Economics of High Analysis Fertilizer Manufacture (1954)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 2 (1954), S. 858-862 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60037a002
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  • 6
    Electronic Resource
    Electronic Resource
    Sugar Beet Products, Nonsucrose Constituents of Beet Sugar Processing Liquors of Rocky Mountain Area (1955)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 3 (1955), S. 346-350 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60050a009
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  • 7
    Electronic Resource
    Electronic Resource
    Insecticide Residues in Meat and Milk, Feeding of Malathion to Cattle: Residue Analyses of Milk and Tissue (1962)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 10 (1962), S. 7-9 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60119a003
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  • 8
    Electronic Resource
    Electronic Resource
    METHOD FOR EVALUATING THE FILTERABILITY OF WINE AND SIMILAR FLUIDS. (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A method for determination of the filterability of wine was developed. The method is based on evaluation of the filtration curve of a wine filtered through a membrane disc 13 mm in diameter, having a pore size of 0.45 micron. Results of the filterability test were found to be related to plant operation. According to the method developed, a wine is ready for membrane filtration the moment that its filterability test indicates that the differential filtered volume remains unchanged for most of the 60 min determination time. A decrease in the differential filtered volume indicates that the wine contains insolubles/microorganisms, and the rate of the decrease should be considered to be proportional to the load on the membrane. This method is not limited to the wine industry, but can be adapted and/or modified for similar applications, i.e., pharmaceuticals, breweries, fine chemicals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1976.tb00727_41_4.x
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  • 9
    Electronic Resource
    Electronic Resource
    A NOTE ON THE INFLUENCE OF REST PERIODS ON THE FATIGUE ENDURANCE OF A TITANIUM ALLOY (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 7 (1984), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: S-N curves have been determined for continuous cycling and for interrupted cycling using commercial purity titanium, and also a Ti-6Al-4V alloy in four different states of heat treatment. The incorporation of rest periods during the fatigue tests resulted in increased lives to fracture to an extent which appeared to be independent of specimen composition or microstructure, and hence primarily a function of the titanium itself. Failures from internal crack origins were found at longer lives from some specimens for both continuous and interrupted tests. It is suggested that the observed effects are due to localised hardening and strain ageing as a consequence of oxygen and/or nitrogen pick-up from the testing environment, and also as a result of oxygen and/or nitrogen present in the starting material.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1984.tb00192.x
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of retinoids on the morphology of epidermal differentiationin vitro
    Amsterdam : Elsevier
    Micron And Microscopica Acta 14 (1983), S. 253-254 
    Details
    ISSN: 0739-6260
    Keywords: Vitamin A ; differentiation ; keratinocytes ; tissue culture ; ultrastructure
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0047-7206(83)90056-0
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