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  • 1
    Electronic Resource
    Electronic Resource
    Antibacterial Effects of Butylated Hydroxyanisole (BHA) against Bacillus species (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), 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: The antibacterial effect of butylated hydroxyanisole (BHA) was evaluated in laboratory media and in two foods. In nutrient broth growth of Bucillus species (three strains of B. cereus, two of which were enterotoxigenic, and one strain each of B. subtilis and B. megaterium) was inhibited by 75 ppm of BHA. In tests with food systems growth inhibition of vegetative cells of these organisms required 1000 ppm in cooked rice and 5000 ppm in strained chicken. The effect of BHA was bacteriostatic at the tested levels (≤ 200 ppm in laboratory media and ≤ 10,000 ppm in the food systems), and viable cells were recovered from all samples. Bacterial growth resumed in samples which contained bacteriostatic levels of BHA after dilution with antioxidant free broth or food.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12717.x
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  • 2
    Electronic Resource
    Electronic Resource
    Using an aperture to measure the divergence evolution of injection-locked copper vapor laser pulse
    Amsterdam : Elsevier
    Optics Communications 111 (1994), S. 483-487 
    Details
    ISSN: 0030-4018
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0030-4018(94)90523-1
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  • 3
    Electronic Resource
    Electronic Resource
    F 2 Ionization and Geomagnetic Latitudes (1947)
    [s.l.] : Nature Publishing Group
    Nature 160 (1947), S. 642-643 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHILE studying the relation between the anomalous distribution of F2 ionization in the ionosphere and the geomagnetic co-ordinates of various observatories, we found that Sir Edward Appleton had already published his results1 (that issue of Nature was not available to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/160642a0
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  • 4
    Electronic Resource
    Electronic Resource
    Sex hormone-dependence of ferric nitrilotriacetate-induced lipid peroxidation in ddY mice
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 9 (1990), S. 175 
    Details
    ISSN: 0891-5849
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0891-5849(90)90795-K
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  • 5
    Electronic Resource
    Electronic Resource
    Efficient cloning of a mutant adenylate-kinase-encoding gene from Escherichia coli
    Amsterdam : Elsevier
    Gene 80 (1989), S. 21-28 
    Details
    ISSN: 0378-1119
    Keywords: Recombinant DNA ; adk ; homogenotization ; low-copy-number plasmid ; temperature-sensitive mutation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0378-1119(89)90246-1
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  • 6
    Electronic Resource
    Electronic Resource
    Ultrashort laser-pulse annealing of hydrogenated amorphous silicon (1981)
    Springer
    Applied physics 26 (1981), S. 39-43 
    Details
    ISSN: 1432-0630
    Keywords: 81.10. Jt ; 78.55. Ds ; 78.30. Gt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Crystallization of hydrogenated amorphous silicon (a-SI:H) has been initiated using ultrashort laser-pulse train annealing. Optical microscopy, infrared absorption, Raman spectroscopy and photoluminescence measurements show that in our experiment the crystallized layer is localized on the surface and is non-epitaxial. The depth of the crystalline layer and its surface morphology are discussed. A sharp luminescence band at 0.970 eV with fine structure is found after laser annealing and is identified as a recombination center similar to irradiation induced defects in crystalline Si.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197676
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  • 7
    Electronic Resource
    Electronic Resource
    The Precise Design and Machining of Formed Milling Cutters Profile Based on Feature Modeling (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Applied mechanics and materials Vol. 10-12 (Dec. 2007), p. 791-795 
    Details
    ISSN: 1662-7482
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: When using the formed milling cutter to machine workpiece, the formed parts are cut bythe milling with formed shape, so forms correspond to workpiece outline. In the 3D designsoftware--SolidWorks, the relation of position of the workpiece profile and the milling each other issimulated. This project uses the function of 3D-shape of software to complete the 3D-entity-designof formed milling cutter profile and the drawing of rake face, thus designing the rake face profiledirectly, with the results of a great improvement on the design and machining quality andeffectiveness
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/38/transtech_doi~10.4028%252Fwww.scientific.net%252FAMM.10-12.791.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Phase equilibria and structures in the system glycerol, sodium dodecyl sulfate and decanol (1986)
    Springer
    Colloid & polymer science 264 (1986), S. 449-453 
    Details
    ISSN: 1435-1536
    Keywords: Amphiphilic association structures ; micellar solutions ; microemulsions ; liquid crystals ; inverse micelles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The phase equilibria and structures in the system glycerol, sodium dodecyl sulfate and decanol were determined using visual observation, optical microscopy, and low angle X-ray diffraction. The results showed the presence of an isotropic liquid alcohol solution of the surfactant and the glycerol, a lamellar liquid crystalline phase and a small region of an isotropic glycerol solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01419550
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  • 9
    Electronic Resource
    Electronic Resource
    Thermal lens and its effects in copper-vapor lasers (1995)
    Springer
    Applied physics 60 (1995), S. 557-563 
    Details
    ISSN: 1432-0649
    Keywords: 42.55.H ; 42.20 ; 42.60.D
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have analyzed and measured the thermal lens of the copper-vapor laser by considering both its windows and active medium. The equivalent combined focal length varies with operation parameters and it is sensitive to the laser geometry. The results are verified by our measurements on a 20 W device with 35 mm internal diameter tube. The thermal lens effects on the beam properties are analyzed and verified with the experiments for both oscillator and laser chain case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01080935
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  • 10
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    ULF EM fields solved by normalized spherical harmonics (2023)
    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Details
    Publication Date: 2023-07-10
    Description: The Electromagnetic (EM) fields excited by a vertical electric dipole (VED) at the ultra-low frequency (ULF) have been widely used in different studies such as space weather, earthquake predictions, geophysical investigations, and communications. Algorithms are essential for estimations of worldwide EM fields. Spherical coordinates are widely used in these studies as the curvature of the earth cannot be ignored. The ULF EM fields are usually expressed by series of spherical harmonics, including spherical Bessel and Hankel functions. There are overflow problem when separately estimating values of spherical harmonics and divergence problem when evaluating summation of series expression of ULF EM fields. This study proposes a new algorithm to calculate EM fields excited by a VED embedded in a layered spherical model. The ULF EM fields are expressed by normalized spherical Bessel/Hankel functions, where a set of local/general reflection and transmission coefficients is defined to describe propagations of EM fields in each spherical layer. The normalized spherical Bessel/Hankel functions are not only useful to overcome the overflow problem in calculations of spherical Bessel/Hankel functions but also helpful to accelerate the convergence of calculations EM fields as the normalized expressions mitigate small oscillations terms. The proposed method is benchmarked with the existing method. Effects of frequency, daytime and night time, height of air layer, and conductivity of air layer and ionosphere on EM fields are discussed.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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