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  • 1
    Electronic Resource
    Electronic Resource
    Viomycin. I. The Structure of Viomycidine (1964)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 86 (1964), S. 5363-5364 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01077a085
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A generalized two-cycle componentwise splitting method for solving three-dimensional parabolic differential equations with variable coefficients on multilayers (1997)
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 7 (1997), S. 863-879 
    Details
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Describes a generalized two-cycle componentwise splitting method for solving three-dimensional parabolic differential equations with variable coefficients which has been developed based on the idea of the regularized difference scheme. The method is simple, unconditionally stable and well suited for simulating fast transient phenomena and for computations on fine spatial meshes. A numerical procedure that employs the generalized two-cycle componentwise splitting scheme was developed to solve three-dimensional parabolic differential equations with variable coefficients on multilayers. In the procedure, the generalized "divide and conquer" method for solving tridiagonal linear systems is applied in order to overcome the problem with the unknown value at the interface between layers. Numerical results show that the procedure is accurate and efficient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09615539710193047
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A three-dimensional numerical method for thermal analysis in X-ray lithography (1998)
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 409-423 
    Details
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: X-ray irradiation of photoresists, such as polymethylmethacrylate (PMMA), on a silicon substrate is an important technique in micro fabrication used to obtain structures and devices with a high aspect ratio. The process is composed of a mask and a photoresist deposited on a substrate (with a gap between mask and resist). Predictions of the temperature distribution in three dimensions in the different layers (mask, gap, photoresist and substrate) and of the potential temperature rise are essential for determining the effect of high flux X-ray exposure on distortions in the photoresist due to thermal expansion. In this study, we develop a numerical method for obtaining the steady state temperature profile in an X-ray irradiation process by using a preconditioned Richardson method for the Poisson equation in the micro-scale. A domain decomposition algorithm is then obtained based on the parallel "divide and conquer" procedure for tridiagonal linear systems. Numerical results show that such a method is efficient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09615539810213188
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A generalized Douglas ADI method for solving three-dimensional parabolic differential equations on multilayers (1997)
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 7 (1997), S. 659-674 
    Details
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Develops a generalized Douglas ADI method for solving three-dimensional parabolic differential equations based on the idea of the regularized difference scheme. The method is simple, unconditionally stable and well suited for either simulating fast transient phenomena or for computations on fine spatial meshes. Numerical procedures that employ the generalized Douglas ADI scheme were developed to solve three-dimensional parabolic differential equations on multilayers. In these procedures, the generalized "divide and conquer" method for solving tridiagonal linear systems is applied in order to overcome the problem with the unknown value at the interface between layers. Numerical results show that the procedure is accurate and efficient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09615539710185550
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    A hybrid finite element-finite difference method for thermal analysis in X-ray lithography (1999)
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 9 (1999), S. 660-677 
    Details
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: X-ray lithography is an important technique in micro fabrication used to obtain structures and devices with a high aspect ratio. The X-ray exposure takes place in a system composed of a mask and a photoresist deposited on a substrate (with a gap between mask and resist). Predictions of the temperature distribution in three dimensions in the different layers (mask, gap, photoresist and substrate) and of the potential temperature rise are essential for determining the effect of high flux X-ray exposure on distortions in the photoresist due to thermal expansion. In this study, we develop a three-dimensional numerical method for obtaining the temperature profile in an X-ray irradiation process by using a hybrid finite element-finite difference scheme for solving three-dimensional parabolic equations on thin layers. A domain decomposition algorithm is then obtained based on a parallel Gaussian elimination for solving block tridiagonal linear systems. The method is illustrated by a numerical method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09615539910276160
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    The transmural potential difference and short-circuit current across the small intestine
    Amsterdam : Elsevier
    Comparative Biochemistry And Physiology 28 (1969), S. 717-724 
    Details
    ISSN: 0010-406X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0010-406X(69)92103-3
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  • 7
    Electronic Resource
    Electronic Resource
    Light diffraction of cardiac muscle: An analysis of sarcomere shortening and muscle tension
    Amsterdam : Elsevier
    Journal of Molecular and Cellular Cardiology 9 (1977), S. 441-459 
    Details
    ISSN: 0022-2828
    Keywords: Force ; Frog atrial strand ; Light diffraction ; Muscle mechanics ; Sarcomere length ; Sarcomere velocity-force relationship ; Shortening machine ; Velocity
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0022-2828(77)80025-4
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Cardiac muscle following quick-freezing: Preservation of in vivo ultrastructure and geometry with special emphasis on intercellular clefts in the intact frog heart
    Amsterdam : Elsevier
    Journal of Molecular and Cellular Cardiology 20 (1988), S. 285-302 
    Details
    ISSN: 0022-2828
    Keywords: Bird ; Cardiac muscle ; Cryosections ; Electron microscopy ; Extracellular space ; Freeze-fracture ; Freeze-substitution ; Frog ; Intercellular clefts ; Mouse ; Quick-freezing
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0022-2828(88)80063-4
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Analysis of the spectrum of mutations induced by the rad3-102 mutator allele of yeast
    Amsterdam : Elsevier
    Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis 267 (1992), S. 55-57+60-66 
    Details
    ISSN: 0027-5107
    Keywords: RAD6 erro-prone pathway ; Rad3-102 mutator allele of yeast ; Rem1 mutant alleles ; Saccharomyces cerevisiae, RAD3 gene
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0027-5107(92)90110-N
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  • 10
    Electronic Resource
    Electronic Resource
    Intracellular bicarbonate in single cells of Necturus kidney proximal tubule (1974)
    Springer
    Pflügers Archiv 349 (1974), S. 295-299 
    Details
    ISSN: 1432-2013
    Keywords: Bicarbonate Microelectrode ; Intracellular Bicarbonate ; Cell Bicarbonate ; Kidney Cell Bicarbonate ; Kidney Cell pH ; Proximal Tubule Cell Bicarbonate ; Necturus Maculosus Proximal Tubule
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The intracellular bicarbonate concentration in the cytoplasmic water of kidney cells of Necturus was determined by means of double-barreled HCO3 −-selective liquid ion-exchange microelectrodes. These microelectrodes permit the simultaneous determination of intracellular HCO3 − and membrane PD of single cells. The fact that these double-barreled microelectrodes yielded a normal peritubular cell membrane electrical PD (70 m V) may be taken as evidence against any significant cellular damage by the electrodes. This electrometric study yielded a mean intracellular [HCO3 −] in single proximal tubule cells of Necturus of 11.1±0.6 mM, a value which is more than an order of magnitude higher than that predicted for a Donnan-type electrochemical equilibrium distribution of HCO3 − ions. Thus there is a net electrochemical gradient favoring the passive efflux of HCO3 − ions across both individual cell membranes. The movement of HCO3 − ions from cell-to-interstitium would contribute to the renal acidification function. Across the luminal cell membrane the two possible mechanisms are either active reabsorption (lumen-to-cell) of HCO3 − ions as such or active H+ secretion (cell-to-lumen). Our directly measured relatively high intracellular [HCO3 −] and the associated calculated relatively alkaline kidney cell pH of 7.44 are both more consistent with the H+ secretion hypothesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588415
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    Paper (German National Licenses)
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