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  • 1990-1994  (12)
  • 1975-1979
  • 1930-1934
  • 1994  (12)
  • 1
    Electronic Resource
    Electronic Resource
    Correlation of x-ray diffraction and Mössbauer effect measurements with magnetic properties of heat-treated Cu80Co15Fe5 ribbons : 38th Annual Conference on Magnetism and Magnetic Materials (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 6924-6926 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: X-ray diffraction (XRD) and Mössbauer Effect (ME) measurements were performed on heat-treated Cu80Co15Fe5 melt-spun ribbons in an attempt to understand the trends in magnetic properties with heat treatment. ME measurements indicate that the majority of Fe atoms (86%) occupy sites in ferromagnetic FCC CoFe clusters after the initial quench. A heat treatment at 900 °C acts to complete the chemical separation of Fe from the Cu matrix. The presence of Co in the Cu matrix, even after high temperature anneals, provides a paramagnetic component that prohibits saturation even at high fields.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356782
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Granular giant magnetoresistive materials and their ferromagnetic resonances (abstract) : The 6th joint magnetism and magnetic materials (MMM)-intermag conference (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 6823-6823 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ferromagnetic resonance (FMR) can reveal important information on the size and shape of the ferromagnetic particles which are dispersed in granular giant magnetoresistive (GMR) materials. We have investigated the FMR spectra of three different types of granular GMR material, each with different properties: (1) melt-spun ribbons of Fe5Co15Cu80 and Co20Cu80, (2) thin films of Co20Cu80 produced by pulsed laser deposition, and (3) a granular multilayer film of [Cu(50 A(ring))/Fe(10 A(ring))]×50. We interpret the linewidth of these materials in as simple a manner as possible, as a "powder pattern'' of noninteracting ferromagnetic particles. The linewidth of the melt-spun ribbons is caused by a completely random distribution of crystalline anisotropy axes. The linewidth of these samples is strongly dependent upon the annealing temperature: the linewidth of the as-spun sample is 2.5 kOe (appropriate for single-domain particles) while the linewidth of a melt-spun sample annealed at 900 °C for 15 min is 3.8 kOe (appropriate for larger, multidomain particles). The linewidth of the granular multilayer is attributed to a restricted distribution of shape anisotropies, as expected from a discontinuous multilayer, and is only 0.98 kOe with the magnetic field in the plane of the film.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.358141
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of a moving phase of Al2O3 by Auger electron spectroscopy in the back aluminized surface of Si (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 64 (1994), S. 2847-2848 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Backsurface aluminization of n on p silicon solar cells is preferred because it can provide backsurface field and getter lifetime killing impurities. In this work, depth profiling has been done on aluminized backsurfaces of silicon wafers which were heat treated at 660–820 °C in an ambient of POCl3 and oxygen gas mixture and a new moving phase of Al2O3 has been detected by Auger electron spectroscopy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.111444
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  • 4
    Electronic Resource
    Electronic Resource
    Sediment accumulation rate in the lakes of Kumaun Himalaya, India using210Pb and226Ra (1994)
    Springer
    Environmental geology 23 (1994), S. 114-118 
    Details
    ISSN: 1432-0495
    Keywords: Sediment accumulation rate ; Lead-210 ; Radon-226 ; Nainital region ; Anthropogenic ; Kumaun Himalaya
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The rate of sedimentation and the source of sediments in the lake basins of Nainital region, Kumaun Himalaya, have been estimated employing210Pb and210Ra methods. This has yielded a rate of sedimentation of 11.5, 4.70, 3.72, and 3.00 mm/yr in Nainital, Bhimtal, Naukuchiyatal, and Sattal lakes, respectively. The higher rate of sedimentation in Nainital lake, compared to other lakes, is related to faster erosion in the catchment aided by greater anthropogenic activity, while the slowest rate in Sattal lake is due to less erosion and more input of soil-derived material involving a slow rate of accumulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00766984
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  • 5
    Electronic Resource
    Electronic Resource
    Rate of sediment accumulation in lakes of Udaipur, Rajasthan, India, using the210Pb method (1994)
    Springer
    Environmental geology 24 (1994), S. 28-33 
    Details
    ISSN: 1432-0495
    Keywords: Udaipur ; 210Pb method ; Rate of sedimentation ; Ahar River ; Terrigenous material ; Anthropogenic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Sediment accumulation rates have been determined in Udai Sagar, Fateh Sagar and Pichola lakes, which lie in the arid climatic zone, using the210Pb method. The rate of sedimentation estimated in these lakes is 8.9, 3.42, and 2.80 mm/yr, respectively. River inflow, mining activity, and lithology contribute to controling the sediment deposition pattern in Udai Sagar Lake, whereas in Fateh Sagar and Pichola lakes, anthropogenic activity and erosion of loosely bound terrigenous material through wave action and varying lithology are the major contributors. Furthermore, a contribution from atmospheric fallout has not been ruled out due to occurrence of frequent duststorms, owing to strong wind conditions aided by barren hills devoid of vegetation as well as dumping of mining wastes in the area. The higher TDS and lower sedimentation rate in Pichola Lake compared to Fateh Sagar are due to the limestone lithology and better maintenance in the former, such as construction of parks, graveled roads, etc., to check the flow of silt into the lake. Fluctuations in metal content, for example, V, Cr, Co, Ni, Sr, and sedimentation rates are due to the variation in the sediment input at different time intervals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00768074
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    BamHI restriction fragment length polymorphism (RFLP) at the human GST3 gene locus (1994)
    Springer
    Human genetics 〈Berlin〉 94 (1994), S. 107-108 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A new restriction fragment length polymorphism (RFLP) detected for the human glutathione S-transferase-pi (GST3) gene with the restriction endonuclease,BamHI (GGATCC) is described. Because of the association of GST isozymes with certain human diseases, the data on involvement of different GST loci, their chromosomal location and information on RFLPs are of potential diagnostic value.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02272855
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  • 7
    Electronic Resource
    Electronic Resource
    The effects of foundation width on model tests for the bearing capacity of sand with geogrid reinforcement (1994)
    Springer
    Geotechnical and geological engineering 12 (1994), S. 133-141 
    Details
    ISSN: 1573-1529
    Keywords: Bearing capacity ; bearing capacity ratio ; geogrid reinforcement ; model test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Laboratory model test results for the ultimate bearing capacity of surface strip foundations on geogrid-reinforced sand and unreinforced sand are presented. A fine uniform sand and one type of geogrid (Tensar BX1000(SSO)) were used for the tests. The width of the foundation and the relative density of sand were varied to determine their effects on the bearing capacity ratio. It was found that the bearing capacity ratio of the sand-geogrid system decreased with an increase in foundation width. However, above a certain foundation width (130–140 mm) a practically constant value of bearing capacity ratio was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429771
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Physical anthropology, peace and justice: Some observations (1994)
    Springer
    International journal of anthropology 9 (1994), S. 9-13 
    Details
    ISSN: 1824-3096
    Keywords: Ignorance ; Genetic disorder ; Biological quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Human biological well being is a concern of physical anthropology. Genetic determinants and also sociocultural factors, which operate through biological bases, affect human biological quality. Several populations from different parts of the globe have been identified where varieties of detrimental genes occur in considerable numbers influencing health and some other related biological aspects of human life. Injustice will be done to those populations if necessary measures are not undertaken to improve their biological qualities. Peace cannot prevail in an atmosphere where people are deprived of the basic amenities for survival and maintenance of good health.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442180
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  • 9
    Electronic Resource
    Electronic Resource
    The bearing capacity of surface strip foundations on geogrid-reinforced sand and clay — a comparative study (1994)
    Springer
    Geotechnical and geological engineering 12 (1994), S. 1-14 
    Details
    ISSN: 1573-1529
    Keywords: Clay ; geogrid ; reinforcement depth ; reinforcement width ; sand ; ultimate bearing capacity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Laboratory model test results for the ultimate bearing capacity of a strip foundation supported by geogrid-reinforced sand and saturated clay are presented. One type of geogrid only was used for all the tests. On the basis of the model test results, the optimum depth and width of reinforcing layers and the optimum depth of the location of the first layer of the geogrid in sand and saturated clay were determined and compared.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425933
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  • 10
    Electronic Resource
    Electronic Resource
    Transient loading-related settlement of a square foundation on geogrid-reinforced sand (1994)
    Springer
    Geotechnical and geological engineering 12 (1994), S. 241-251 
    Details
    ISSN: 1573-1529
    Keywords: Geogrid reinforcement ; sand ; surface foundation ; transient loading ; ultimate settlement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Laboratory model test results are presented that determine the effectiveness of using layers of geogrids as reinforcement in sand to reduce the settlement of square surface foundations subjected to transient loading. The model tests were conducted with only one type of geogrid at one relative density of compaction of sand. The maximum intensity of the transient load applied always exceeded the static ultimate bearing capacity of the foundation when supported by unreinforced sand. The settlement reduction factors for various depths of reinforcement have been determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00427055
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