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  • 1
    Monograph available for loan
    Monograph available for loan
    Referenzdaten zum Waldwachstum (1991)
    Karlsruhe : Kernforschungszentrum Karlsruhe, Selbstverlag
    Associated volumes
    Details Availability
    Call number: PIK N 076-92-0219
    In: Forschungsbericht KfK-PEF
    Type of Medium: Monograph available for loan
    Pages: 59 S.
    Series Statement: Forschungsbericht KfK-PEF
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 2
    Electronic Resource
    Electronic Resource
    Time-of-flight analysis of light pulses with a temporal resolution of 100 ps (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 1721-1724 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: This article describes a new, direct way to measure the time evolution of single light pulses in the subnanosecond region using time-of-flight analysis. The light pulse is coupled into a set of 40 optical fibers of increasing length arranged in an array. The output of the fiber array is imaged onto a fast gated optical imager (gatewidth 100 ps) coupled to a CCD camera (12 bit). The intensified part of the pulse of each fiber corresponds to the intensity of the light pulse at a different time due to the different transmission time of each fiber. Additional, two-dimensional (2D) spatial resolution is possible if image guides are used instead of fibers. The temporal resolution is limited by the gatewidth of the detector. The difference in length between the longest and the shortest fiber determines the total period of time displayed by the system (1 ns). The pulse characteristics of a recently developed short-pulse Raman-excimer laser are analyzed as an example of an application. Laser parameters like pulse length, energy stability, and jitter are measured with the fiber array. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1146983
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  • 3
    Electronic Resource
    Electronic Resource
    Isomeric pyrimidinecarboxylic acids as electron-mediating bridging ligands in the inner-sphere reduction of cobalt(III) by chromium(II) (1978)
    s.l. : American Chemical Society
    Inorganic chemistry 17 (1978), S. 221-224 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50180a004
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  • 4
    Electronic Resource
    Electronic Resource
    Laser induced fluorescence measurements of microwave stimulated OH molecules from H2O photodissociation (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 105 (1996), S. 2654-2659 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Laser induced fluorescence of microwave stimulated OH molecules from H2O photodissociation is investigated as a first step in a series of laboratory experiments to understand features of astronomical OH masers. The inversion between the Π3/2, J=7/2 Λ-doublet states of OH generated via photodissociation of cold H2O at 157 nm is shown to be 1.8:1. Within a microwave, Fabry–Perot cavity tuned to the resonance of one of the main hyperfine transitions in this Λ doublet it is possible to stimulate all inverted OH molecules. The linewidth of the two main microwave transitions is measured as a function of the microwave power and interaction time. The results show that Doppler broadening is negligible at short interaction times of the molecules with the microwave field. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.472128
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  • 5
    Electronic Resource
    Electronic Resource
    Special Feature: Recent problems in oak decline Preface (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Forest pathology 28 (1998), S. 0 
    Details
    ISSN: 1439-0329
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0329.1998.tb01169.x
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  • 6
    Electronic Resource
    Electronic Resource
    The photodissociation of tert-butyl nitrite at 193 nm (1999)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 4777-4782 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The photodissociation of tert-butyl nitrite, (CH3)3CONO, at 193 nm, is examined by a new experimental setup for photofragment imaging. Probing nascent NO fragments time delayed (several μs) and spatially displaced (relative to the dissociation event) by planar laser-induced fluorescence (PLIF) yields quantum state specific velocity distributions. In this way the internal and the translational energy distributions are determined simultaneously, permitting a very detailed understanding of the energy partitioning of the available energy among the product degrees of freedom and allowing one to analyze correlated product formation. The results differ very strongly from previous photodissociation studies of aliphatic nitrites performed at smaller photon energies, since a different dissociation channel is taken. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.478364
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  • 7
    Electronic Resource
    Electronic Resource
    Growth variation and environmental stresses: Long-term observations on permanent research plots in Southwestern Germany (1990)
    Springer
    Water, air & soil pollution 54 (1990), S. 247-256 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The annual volume increment of Norway spruce and silver fir stands in the Black Forest varies greatly and is correlated with precipitation during the growing season and to some extent with temperature. Mortality is also correlated with climatic variation. Thus, low precipitation during the growing season is considered to be a main stress factor even at higher elevations in the Black Forest mountains where the average precipitation level is high. By silvicultural treatment, climatic stresses may be reduced to some extent. Increment on fertilized Norway spruce plots reacted moe sensitively to drought when fertilizer effect on increment was high. The high productivity in recent decades may have been caused partly by atmospheric deposition. A higher susceptibility to environmental stresses may be a consequence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00298669
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  • 8
    Electronic Resource
    Electronic Resource
    Growth variation and environmental stresses: Long-term observations on permanent research plots in southwestern Germany (1990)
    Springer
    Water, air & soil pollution 54 (1990), S. 247-256 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The annual volume increment of Norway spruce and silver fir stands in the Black Forest varies greatly and is correlated with precipitation during the growing season and to some extant with temperature. Mortality is also correlated with climatic variation. Thus, low precipitation ouring the growing season is considered to be a main stress factor even at higher elevations in the Black Forest mountains where the average precipitation level is high. By silvicultural treatment, climatic stresses may be reduced to some extent. Increment on fertilized Norway spruce plots reacted more sensitively to drought when fertilizer effect on increment was high. The high productivity in recent decades may have been caused partly by atmospheric deposition. A higher susceptibility to environmental stresses may be a consequence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02385244
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  • 9
    Electronic Resource
    Electronic Resource
    Growth dynamics in a changing environment — long-term observations (1995)
    Springer
    Plant and soil 168-169 (1995), S. 555-561 
    Details
    ISSN: 1573-5036
    Keywords: climate ; drought ; mortality ; needles ; shoots ; tree rings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Natural influences as well as human activities have changed forest environments. As a result, growth conditions have changed with time. The annual and periodic growth of needles, shoots, tree rings and volume growth vary considerably over time. The variation in ring width and volume increment of Norway spruce correlates with precipitation and air temperature. High air temperature and low precipitation during the vegetation period reduce growth rate and increase tree mortality even in some areas where average precipitation is high and average air temperature is relatively low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029368
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  • 10
    Electronic Resource
    Electronic Resource
    Liming, nitrogen and phosphorus fertilization and the annual volume increment of Norway spruce stands on long-term permanent plots in Southwestern Germany (1991)
    Springer
    Nutrient cycling in agroecosystems 27 (1991), S. 87-93 
    Details
    ISSN: 1573-0867
    Keywords: Volume increment ; Norway spruce ; liming ; nitrogen ; phosphorus ; fertilization ; precipitation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The amount, fluctuation and duration of increment response to fertilization (liming) in three regions of southwestern Germany is described. After liming, additional yield increases slowly while after N-fertilization, there is a rapid yield increase. A long-lasting high response was found to a combination of liming, P- and N-fertilization. This response was regionally different and was influenced by climatic conditions during the years after fertilization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01048611
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