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  • 1
    Electronic Resource
    Electronic Resource
    Reply to "Comment on ‘Optical carriage for laser-induced fluorescence in a magnetized plasma' '' [Rev. Sci. Instrum. 60, 3830 (1989)] (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 3831-3832 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The comments made by Goeckner and Goree are correct, in general, but they are not relevant to our experiment. The measurements made with the optical carriage represent an average over the diagnosed volume, and the laser power is low enough to avoid the effect due to saturation broadening.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140454
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  • 2
    Electronic Resource
    Electronic Resource
    Optical carriage for laser-induced fluorescence in a magnetized plasma (1988)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 59 (1988), S. 2306-2307 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An "optical carriage'' has been developed to improve plasma access for LIF diagnostics. Laser light inducing the fluorescence is transported through an optical fiber to the carriage. A telescope fixed on the carriage collects the plasma fluorescence light and sends it through a fiber bundle to an external PMT. The whole carriage is mounted on rails and can be scanned along and across the magnetic field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139956
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  • 3
    Electronic Resource
    Electronic Resource
    Electrodeposition of rhenium on tungsten hot plate used in Q plasma source (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2802-2804 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The brief note describes diverse aspects of the technique used for rhenium plating the hot plate used for contact ionization of barium in a Q plasma source. The rhenium plating optimizes the probability of barium ionization. Special care has to be taken in order to deposit a uniform layer of rhenium, for this purpose a slow rotation is given to the plate during deposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140664
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  • 4
    Electronic Resource
    Electronic Resource
    A von Liebig response function to nitrogen and phosphorus for hay production from irrigated pastures (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 40 (1985), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Permanent pasture in the Po Valley of Italy was the site of a pluriannual experiment (1975–81) to observe the effects on hay production of N and P fertilizer applications well above those normally recommended. A split-plot design with a randomized complete block arrangement of the whole-plot factor with 5 levels of N and the subplot factor with 3 levels of P was chosen for the experiment. The maximum rate of N application was 800 kg ha−1 while the corresponding rate for P was 87.3 kg ha−1. Principal species in the sward were orchard grass (Dactylis glomerata L.), perennial ryegrass (Lolium perenne L.), common velvetgrass (Holcus lanatus L.) and white clover (Trifolium repens L.).This field was irrigated according to customary techniques during summer months and cut five limes each year. Yields were analysed by means of a response function of the linear and plateau type which incorporates von Liebig's Law of the Minimum, it was found that this function represents the hay response very well with respect to N. In fact, beyond 390 kg ha −1 applied N the response is negligible up to 800 kg ha−1, the maximum rate tested in this experiment. The optimal rate of applied N decreased consistently over the years from 390 to 260 kg ha−1. At these unusually high levels of fertilization hay production increased about 60–80% compared with normal practices.The estimation of the von Liebig response function requires mathematical programming knowledge. The estimates obtained are maximum likelihood estimates. The practical importance of estimating and using this response function lies in its ability to achieve the maximum response with the minimum amount of fertilizers among all other admissible response functions. Hence, its adoption for making fertilizer recommendations would save farmers money and limit chemical pollution to the environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1985.tb01739.x
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  • 5
    Electronic Resource
    Electronic Resource
    Near threshold fatigue crack growth versus long finite life (2002)
    Oxford, UK : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 25 (2002), 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: A brief review of the discovery of the fatigue crack growth threshold is provided with a discussion of the main variables, Kmax and ΔK, which control the threshold over the low and high load ratio ranges, respectively. The significant effect on near threshold growth rates as illustrated by Donald are shown, for an example the aluminium alloy, 2324-T39. Attention is then turned to the ‘partial closure model’ as a means of correlating near threshold fatigue crack growth rates. This seems to be the most promising model with a physical basis. For this reason, the discussion goes on to present a new theoretical analysis of the load displacement record characteristics, which should accompany ‘partial closure’ of fatigue cracks. In addition it is concluded that secondary stress effects should be explored for near threshold fatigue crack growth rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1460-2695.2002.00560.x
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  • 6
    Electronic Resource
    Electronic Resource
    Secondary elastic crack tip stresses which may influence very slow fatigue crack growth (2002)
    Oxford, UK : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 25 (2002), 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: Secondary elastic crack tip stress intensity factors are defined in a convenient way consistent with the primary stress intensity factor definition. Methods of evaluation of these secondary stress intensity factors are developed. They are evaluated for example configurations with cracks. It is shown that the first secondary term may be sufficient to evaluate the effects of secondary stresses beyond the usual stress intensity factor and nominal normal stresses parallel to the crack direction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1460-2695.2002.00559.x
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  • 7
    Electronic Resource
    Electronic Resource
    New insight in the level structure of 153Er (2000)
    Springer
    The European physical journal 7 (2000), S. 149-153 
    Details
    ISSN: 1434-601X
    Keywords: PACS: 21.10.Pc Single-particle levels – 23.20.Lv Gamma transitions and level energies – 27.70.+q 150 ≤ A ≤ 189
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The high-spin level structure of the 153Er nucleus has been reinvestigated by in-beam γ-ray and electron spectroscopy with (14N,pxn) reaction. Excitation energies, spin and parity assignments are unambiguously established for the two lowest isomers T 1/2≃ 380 ns and T1/2\simeq 10 ns. The characteristics of the third one (T 1/2≃ 250 ns) at 5.2 MeV are still questionable but its main decay modes are better known. An extension of the level scheme is proposed up to 8.4 MeV.Experimental results have been discussed in terms of shell model multiplets and compared with the other structures observed in N=85 neighbouring nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00013591
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  • 8
    Electronic Resource
    Electronic Resource
    Quasiparticle states in152Dy observed in β-decay of 9+ and 2− 152Ho (1989)
    Springer
    The European physical journal 333 (1989), S. 407-408 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated β-decay of 50s- and 143s-152Ho produced via the159Tb(3He,10n) reaction at the ISOCELE On-line mass separator. Inγ-ray and e−-measurements we have found 14 previously unobserved152Dy levels in these decays, including low-lying 2 2 + , 4 2 + , 6 2 + and 7 1 + states slightly above the collective yrast line. Theγ-data suggest single-particle character for the 6 2 + and 7 1 + states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01299696
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  • 9
    Electronic Resource
    Electronic Resource
    Configuration assignments and decay of 126La high-spin bands (2000)
    Springer
    The European physical journal 7 (2000), S. 7-10 
    Details
    ISSN: 1434-601X
    Keywords: PACS: 21.10.Re Collective levels – 23.20.Lv Gamma transitions and level energies – 21.60.Ev Collective models – 27.60.+j 90 ≤ A ≤ 149
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: High spin states of 126La have been populated using the reaction 116Sn+14N at 68 MeV. γ-rays and conversion electrons were detected with the GAREL array. Multipolarities of the lowest-lying in-band dipole transitions have been determined from the deduced internal conversion coefficients. Experimental B(M1)/B(E2) ratios have been derived for the bands and compared with calculated values using the Dönau-Frauendorf geometrical model. Configurations are proposed for the bands comparing them with cranked shell model calculations and on the basis of the measured B(M1)/B(E2) ratios. The β-decay of 126La has also been revisited. The population of the 126Ba levels gives a probable spin value of five for the decaying high-spin 126La state with T 1/2≈ 64 s which may indicate a signature inversion in the πh11/2νh11/2 band.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050002
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  • 10
    Electronic Resource
    Electronic Resource
    New investigation of the decay of the high-spin isomer in 151Er (2000)
    Springer
    The European physical journal 8 (2000), S. 451-454 
    Details
    ISSN: 1434-601X
    Keywords: PACS. 21.10.Pc Single-particle levels – 23.20.Lv Gamma transitions and level energies – 23.20.Nx Internal conversion and extranuclear effects – 27.70.+q 150?A?189
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The decay of the T 1/2 = 420 ns isomer in 151Er has been reinvestigated. The multipolarities of the decaying transitions have been established by measuring the electron conversion coefficients. An I = 67/2- assignment is proposed for this isomer with a π[h 4 11/2 d 1 3/2 d -1 5/2] ⊗ν[f 7/2 h 9/2 h -1 11/2] configuration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050055
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