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  • 1
    Electronic Resource
    Electronic Resource
    Practical synthesis of semibullvalene (1980)
    s.l. : American Chemical Society
    The @journal of organic chemistry 45 (1980), S. 3511-3512 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01305a028
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  • 2
    Electronic Resource
    Electronic Resource
    Finite-element design of a guarded heating cylinder to measure thermal properties of materials (1990)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 61 (1990), S. 3876-3882 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A device for the measurement of thermal properties of phase change materials and, in general, of medium thermal conductivity materials, is described. The measuring cell is a modified version of the guarded hot plate technique, here designed for about 8-cm-diam samples. A well-known difficulty arises in such a device: its limitation when the sample cross section becomes too small with respect to its thickness. A finite-element model is used to study the shape of isotherms in a thick sample (10 cm) for different configurations of the measuring device. This analysis has led to the selection of the optimum design. It shows that the instrument is able to handle samples with a diameter to thickness ratio of about 1 so far as the heat transfer coefficient remains beneath some limits (here 100 W/m2 K). The control system is also described and some typical results are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1141516
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal conductivity measurements in soil using an instrument based on the cylindrical probe method (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 774-780 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The article discusses the underlying hypothesis, the limits, the range of application, and the practical operation of a versatile thermal conductivity analyzer based on a transient cylindrical probe method. The best expected precision for the conductivity determination appears to be ∼±10%. A compact analyzer, integrating all the apparatus' components in the same unit, has been specifically designed for environmental research in the field. Calibration received special attention regarding thermal conductivity values in the range 0.1–3 W/mK. The analyzer was tested on seven materials, in field conditions, and discrepancies from published conductivity values did not exceed 9%. Several checks were performed in the laboratory to study the influence of experimental conditions, such as the probe insertion technique. The cylindrical probe method appears well suited to powdered materials, but may also be applied to viscous liquids and solid matter. As an application, the cylindrical probe was used to characterize nine soils from the Belgian Lorraine. After soil analysis in the dry state, thermal conductivity of each sample was determined at different moisture contents. The transient cylindrical probe method proved to be quick and easy, whether in situ or on samples in the laboratory. It is a powerful tool which can map a country's soil thermal properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144158
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  • 4
    Electronic Resource
    Electronic Resource
    Optimal thermodynamic heat transfer (1989)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 28 (1989), S. 873-875 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00090a034
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  • 5
    Electronic Resource
    Electronic Resource
    Partial Purification and Characterization of Sulfhydryl Oxidase from Aspergillus niger (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), 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: : Sulfhydryl oxidase (SOX) was purified after extraction and the contaminating catalase activity was completely eliminated in the last chromatography step. A yield of 25% was obtained with a purification factor higher than 300. The isoelectric point was 3.7 and the molecular weight 110 kDa. SOX exhibited an optimal activity at pH 5.6 and its efficiency (Vmapp/Kmapp) increased from pH 4.5 to 6.5. At pH 5.6, the Kmappvalues were 0.5, 2.5, 10.5, 110, and 450 mM for GSH, cysteine, g-glu-cys, dithiothreitol, and homocysteine, respectively, and the Vmappvalues represented 2, 34, 24, and 44% of the VmaPPvalue found for GSH, respectively. Cys-gly was not oxidized by SOX. In the presence of GSH, SOX is able to catalyze the oxidation of cysteine and cys-gly at a significant rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb09494.x
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  • 6
    Electronic Resource
    Electronic Resource
    Hydrodynamic stability of high-viscosity cylindrical liquid bridges (1992)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 4 (1992), S. 1620-1626 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The hydrodynamic stability of cylindrical liquid bridges is studied in the asymptotic limit when viscosity is paramount. The problem has been solved analytically in terms of a series of biorthogonal eigenfunctions (the Papkovich–Fadle functions), by using an orthogonalization method devised by Smith [Aust. J. Sci. Res. 5, 227 (1952)] for solving elasticity problems. It is found that the growth factor is real for all the values of the slenderness, leading to pure damping or growing motions for the stable or the unstable modes, respectively. This analysis is also valid when the viscous to capillary forces ratio is of order unity and the slenderness is close to the static stability limit. The results are compared with previous ones obtained from Rayleigh's viscous model for jets or from Cosserat's one-dimensional model, showing a very good agreement for long columns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858384
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  • 7
    Electronic Resource
    Electronic Resource
    Magnetohydrodynamic stability of cylindrical liquid bridges under a uniform axial magnetic field (1992)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 4 (1992), S. 2573-2577 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of a uniform axial magnetic field on the stability of cylindrical liquid bridges of negligible viscosity and resistivity is examined in this paper, in the limit case when magnetic forces dominate inertia forces. The analysis yields the bifurcation curve and the growth factor in the neighborhood of the stability limit points as a function of two dimensionless parameters: Λ, the slenderness of the bridge and M, a nondimensional quantity proportional to the magnetic field. It is found that bridges of any slenderness can be stabilized by magnetic fields when M(approximately-greater-than)1/(square root of)2. The results are compared to those existing for capillary liquid jets, showing that the stability curves coincide and that the stabilizing effects are greater for liquid bridges than for infinite columns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858444
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  • 8
    Electronic Resource
    Electronic Resource
    Nonuniform target illumination in the deflagration regime: Thermal smoothing (1988)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 31 (1988), S. 2320-2326 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal smoothing in the plasma ablated from a laser target under weakly nonuniform irradiation is analyzed, assuming absorption at nc and a deflagration regime (conduction restricted to a thin quasisteady layer next to the target). Magnetic generation effects are included and found to be weak. Differences from results available in the literature are explained; the importance of the character of the underdense flow at uniform irradiation is emphasized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.866632
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  • 9
    Electronic Resource
    Electronic Resource
    Welfare Magnets, Border Effects or Policy Regulations: What Determinants Drive Migration Flows into the EU? (2006)
    Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)
    Global economy journal 6 (2006), S. 3 
    Details
    ISSN: 1524-5861
    Source: Berkeley Electronic Press Academic Journals
    Topics: Economics
    Notes: In recent years, there has been a lack of empirical work devoted to the explanation of migration patterns into the European Union with the exception of country specific studies. At the same time, migration theories have undergone a considerable renewal, which has led to the development of new variables for explaining migration decisions. Three of them are of particular interest in the EU case, namely welfare magnets, border effects and policy regulations. This paper aims at explaining recent migration trends into the EU. A first contribution is to provide an original eclectic theoretical model from the new developments in migration theories. Second, an empirical panel data model is developed in order to explain the emigration rate into 18 EU countries, from 67 source countries over the past 10 years. Finally, this model simultaneously tests the impact of the traditional and the new variables on migration flows into the EU. From both static and dynamic panel data estimators, the results show that the new variables are of particular significance, compared to traditional ones.
    Type of Medium: Electronic Resource
    URL: http://www.bepress.com/gej/vol6/iss4/3
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  • 10
    Electronic Resource
    Electronic Resource
    Interaction of specific platelet membrane proteins with collagen: evidence from chemical crosslinking (1984)
    s.l. : American Chemical Society
    Biochemistry 23 (1984), S. 3099-3104 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00308a038
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