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  • 11
    Electronic Resource
    Electronic Resource
    Measurement of laser light thomson-scattered from a cooling electron beam (1987)
    Springer
    Applied physics 44 (1987), S. 87-92 
    Details
    ISSN: 1432-0649
    Keywords: 41.80E ; 52.25 ; 29.15D
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract First results are presented from an experiment scattering laser light from a relativistic electron beam. The 5 cm diameter continuous electron beam of 28 keV kinetic energy and 2.6 A current presents an electron gas of a density of 8×107 cm−3, from which 20 ns pulses of laser light (490 nm) were scattered at a repetition rate of 15 Hz and an average power of 20 mJ per pulse. The Doppler-shifted wavelength of photons backscattered under 180° was analysed with a Fabry-Perot interferometer. This technique provides, for the first time, a non-destructive measurement of the velocity distribution in an electron beam radially resolved in space. The results presented here comprise the direct measurement of the absolute electron energy and the degree of space-charge compensation in the electron beam. The determination of an upper bound of 10−2 for the ratio of longitudinal to transverse electron temperature implies the first direct measurement of a flattened velocity distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00694198
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  • 12
    Electronic Resource
    Electronic Resource
    Berechnung der Netzrückwirkungen von Stromrichteranlagen mit Raumzeigern (1987)
    Springer
    Electrical engineering 70 (1987), S. 291-301 
    Details
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Contents Calculating transients in power systems it is advantageous to use symmetrical components. The example of the most common three-phase bridge converter shows that also current converters can be described in space phasors. With respect to the characteristics of conducting valves the networks and the conditions of firing and commutation ending are deduced. Numerically calculated results agree with measurements. A parameter study shows the typical space phasor curves of bridge converter currents.
    Notes: Übersicht Dynamische Netzberechnungen lassen sich vorteilhaft in Drehstrom-Modalkomponenten durchführen. Das Beispiel der meistgebräuchlichen Drehstrom-Brückenschaltung zeigt, daß auch Stromrichter mit Raumzeigern beschrieben werden können. Unter Berücksichtigung der Eigenschaften stromführender Ventile werden die Ersatzschaltpläne sowie die Zünd- und Löschbedingungen in Modalkomponenten hergeleitet. Die Ergebnisse numerischer Berechnungen stimmen mit Messungen überein. Eine Parameterstudie zeigt die für Brückenschaltungen typischen Stromortskurven in Modalkomponenten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01574134
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  • 13
    Electronic Resource
    Electronic Resource
    Stationäre Ortskurven derhpn- undhsz-Komponenten (1986)
    Springer
    Electrical engineering 69 (1986), S. 41-48 
    Details
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Contents By means ofhpn- andhsz-components power system analysis can be carried out with minimal effort and measuring results have maximum contents of information. The most important elementary space-phasors of real time-functions are given inhpn- andhsz-components.
    Notes: Übersicht Inhpn- undhsz-Komponenten lassen sich Netzberechnungen mit minimalem Aufwand durchführen und Meßgrößen mit maximalem Informationsgehalt gewinnen. Es werden die wichtigsten elementaren Ortskurven reeller Zeitfunktionen inhpn- undhsz-Komponenten angegeben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01573979
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  • 14
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    ZIONISM AS A SPIRITUAL IDEAL AND A BLESSING TO PALESTINE (1929)
    New York : Periodicals Archive Online (PAO)
    Current history and Forum. 31:2 (1929:Nov.) 279 
    Details
    ISSN: 1932-7064
    Topics: History
    Notes: THE ARAB-JEWISH CONFLICT IN PALESTINE
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:8730-1929-031-02-000004
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  • 15
    facet.materialart.
    Unknown
    ZIONISM AS A SPIRITUAL IDEAL AND A BLESSING TO PALESTINE (1929)
    New York : Periodicals Archive Online (PAO)
    Current history and Forum. 31:2 (1929:Nov.) 279 
    Details
    ISSN: 1932-7064
    Topics: History
    Notes: THE ARAB-JEWISH CONFLICT IN PALESTINE
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:8730-1929-031-02-000004
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  • 16
    Electronic Resource
    Electronic Resource
    Ifosfamide in pediatric malignant solid tumors (1989)
    Springer
    Cancer chemotherapy and pharmacology 24 (1989), S. S24 
    Details
    ISSN: 1432-0843
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Ifosfamide/mesna was given to 97 patients who had malignant solid tumors diagnosed before they were 21 years of age. Patients received 1.6 g/m2 ifosfamide dailyx5, given i.v. over 15 min, followed by 400 mg/m2 i.v. mesna at 15 min and 4 and 6 h after ifosfamide. Responses were noted in patients with osteosarcoma, Ewing's sarcoma, rhabdomyosarcoma and other soft-tissue sarcomas, rhabdoid tumor, neuroblastoma, Wilm's tumor, primitive neuroectodermal tumor, retinoblastoma, germ-cell tumors, and B-cell lymphoma. Toxicity included mild to moderate nausea and vomiting, transient, reversible myelosuppression, transient elevations of serum blood urea nitrogen (BUN) and creatinine and liver enzymes, infections, and self-limiting neurotoxicity characterized by changes in mental status, motor dysfunction, cranial nerve palsy, cerebellar dysfunction, and seizures. Neurotoxic symptoms were generally seen in patients who had previously received cisplatin. Ifosfamide is an important alkylating agent that should be combined with other agents in phase II and III trials. Alternate dose schedules should also be investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00253234
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  • 17
    Electronic Resource
    Electronic Resource
    Response of maize to three short-term periods of waterlogging at high and low nitrogen levels on undisturbed and repacked soil (1987)
    Springer
    Irrigation science 8 (1987), S. 257-272 
    Details
    ISSN: 1432-1319
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Crops grown with flood irrigation on slowly draining clay soils are subject to periods of waterlogging during and after each irrigation. The aim of this experiment was to quantify crop responses to these short-term waterlogging events and to assess the modifying effect of different agronomic practices. Maize was grown in undisturbed (U) and repacked (R) profiles of clay loam soil encased in steel cylinders (0.75 m diameter × 1.4 m deep). Two levels of N (high (HN) 300 kg N ha−1, and low (LN) 150 kg N ha−1) were applied as a split dressing. Three periods of flooding (F) of 72, 72 and 48 h were imposed on half the treatments beginning on days 40, 54 and 68 respectively after sowing. The other irrigation regime (C) kept the profile well watered but avoided surface inundation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00257510
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  • 18
    Electronic Resource
    Electronic Resource
    Influence of season to season variability in weather on irrigation scheduling of wheat: A simulation study (1985)
    Springer
    Irrigation science 6 (1985), S. 241-251 
    Details
    ISSN: 1432-1319
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary There is an increasing demand from farmers for irrigation scheduling advice. Where rainfall and evapotranspiration vary little from year to year, advice on a fixed irrigation schedule based on mean climatic data can be given. However where significant year to year variability in weather occurs a more flexible approach using actual weather data to predict the current level of soil water and mean climatic data to forecast the future rate of depletion and hence irrigation date may be needed. A technique for deciding the most appropriate scheduling approach was tested by using a simple model of crop growth combined with a soil water balance model to simulate year to year variability in scheduling advice. This technique was applied to irrigated wheat using a set of climatic data from 1968 to 1978 for Griffith in the Murrumbidgee Irrigation Area of New South Wales, Australia. A typical sowing date in early June was used and simulated irrigations were scheduled at an allowable soil water depletion (ASWD) of 62 mm for maximum yield and 93 mm for 80% of maximum. The analysis predicted that weather variability between years would cause the number of irrigations to vary from 2 to 7 for ASWD=62 mm and 1 to 4 for ASWD=93 mm. The interval between irrigations varied from 12 to 30 days, for ASWD=62 mm and from 16 to 28 days, for ASWD=93 mm. The first irrigation occurred between 76 and 131 days from sowing for ASWD=62 mm and from 100 to 140 days from sowing for ASWD=93 mm. The date of the last irrigation was similarly variable. This high degree of variability in the times and frequency of irrigations indicated that in south-eastern Australia accurate irrigation scheduling advice can only be given by using a flexible model using both actual and mean climatic data. A fixed schedule based on mean climatic data would lead to an inefficient use of water caused by the mistiming of irrigations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262469
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  • 19
    Electronic Resource
    Electronic Resource
    Observations on rock boring by Alpheus saxidomus (Crustacea: Alpheidae) (1985)
    Springer
    Marine biology 89 (1985), S. 213-219 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This study describes some aspects of the distribution, ecology, and rock boring behaviour of the shrimp Alpheus saxidomus Holthuis from the Pacific coast of Costa Rica. This species has a typical hammer-shaped dactylus on the first right pereiopod of females and males that shows tracks of abrasion at the hammer-head. Structural analysis of this hammer-dactylus proved that it is suited for the mechanical treatment of rocks. The very thick and calcified cuticle of the hammer is mostly formed by the sclerotinized, hard exocuticle, which has abundant pore canals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392891
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  • 20
    Electronic Resource
    Electronic Resource
    The cytochemistry of glycoconjugates in the planum nasolabial gland of the goat as studied by electron microscopic methods (1988)
    Springer
    Journal of molecular histology 20 (1988), S. 617-623 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In the planum nasolabial glands of the goat, glycoconjugates of glandular and duct cells have been studied by means of a series of electron microscopic cytochemical methods. In the glandular cells glycoconjugates with vicinal diol groupings were present in secretory granules, certain elements of the Golgi complex, lysosome-like dense bodies, the surface coat of the plasma membrane, the majority of intracellular cytomembranes, glycogen particles and the basal lamina. In duct cells, glycoconjugates with the same properties were localized in similar ultrastructures, except for secretory granules, which were not detected in these cells. By lectin cytochemistry, glycoconjugates in glandular cell secretory granules contained a variety of saccharide residues such as α-d-mannose, α-d-glucose,N-acetyl-d-glucosamine and α-l-fucose. The cytochemical properties of the secretory glycoconjugates are discussed in relation to the physiological functions performed by the planum nasolabial glands in the goat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01324080
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