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  • 1
    Monograph available for loan
    Monograph available for loan
    CLEAN Final Conference : CO2 Lage-Scale Enhanced Gas Recovery in the Altmark Natural Gas field ; May 17/18, 2011, GFZ, Potsdam, Germany ; conference contributions (2011)
    Potsdam : GFZ German Research Center for Geosciences
    Details Availability
    Call number: M 11.0201
    Type of Medium: Monograph available for loan
    Pages: 40 S.
    Classification:
    Engineering
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    GFZ publications
    GFZ publications
    International Conference Geothermal Energy and CO2 Storage: Synergy or Competition? : February 10/11 2010, GFZ, Potsdam, Germany ; conference contributions (2010)
    Potsdam : Deutsches GeoForschungsZentrum GFZ
    Details Availability
    Call number: M 10.0051
    Type of Medium: GFZ publications
    Pages: 43 S. : Ill. + 1 Beil.
    URL: http://ebooks.gfz-potsdam.de/pubman/item/escidoc:9005
    Classification:
    Geothermal Energy
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 3
    Electronic Resource
    Electronic Resource
    The Bacillus subtilisσW anti-sigma factor RsiW is degraded by intramembrane proteolysis through YluC (2004)
    Oxford, UK : Blackwell Science Ltd
    Molecular microbiology 52 (2004), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The Bacillus subtilisσW regulon is induced by different stresses such as alkaline shock, salt shock, phage infection and certain antibiotics that affect cell wall biosynthesis. The activity of the alternative, extracytoplasmic function (ECF) sigma factor σW is modulated by a specific anti-sigma factor (RsiW or YbbM) encoded by the rsiW (ybbM) gene located immediately downstream of sigW. The RsiW membrane topology was determined, and a specific reporter system for RsiW function was constructed. Experiments using the yeast two-hybrid system suggested a direct interaction of σW with the cytoplasmic part of RsiW. Analysis of truncated forms of the RsiW protein revealed that σW induction by alkaline shock is dependent on both the transmembrane and the extracytoplasmic domain of RsiW. Western blot and pulse–chase experiments demonstrated degradation of RsiW after an alkaline shock. A B. subtilis mutant strain deleted for the Escherichia coli yaeL orthologue yluC, encoding a transmembrane protease, was defective in inducing a σW-controlled promoter after alkaline shock and accumulated a membrane-bound truncated form of RsiW, suggesting that the activity of σW is controlled by the proteolysis of RsiW by at least two different proteolytic steps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.2004.04031.x
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  • 4
    Electronic Resource
    Electronic Resource
    Reaction at Limited Water Concentration 1. Sucrose Hydrolysis (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 34 (1969), 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: —To enable development of a model describing reaction kinetics in dehydrated foods, we studied sucrose hydrolysis at limited water concentration. Saturated sucrose solutions containing various acids and inert solid materials gave identical rate constants and energy of activation as predicted from dilute solutions. Reaction rates in freeze-dried systems humidified to low moisture contents indicated that any equation describing the rate of hydrolysis must include a term for the velocity of dissolution of solid sucrose into the surface water. The rate of hydrolysis was a pseudo first-order reaction obeying the same kinetics as in dilute solution; the rate of dissolution became rate-limiting when the initial supply of dissolved sucrose was exhausted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1969.tb10355.x
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  • 5
    Electronic Resource
    Electronic Resource
    The crystal structure of stoichiometric CoIn3 (1973)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 29 (1973), S. 2926-2929 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740873007752
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  • 6
    Electronic Resource
    Electronic Resource
    Two Characterizations of Smooth Norms (1999)
    Springer
    Geometriae dedicata 77 (1999), S. 173-183 
    Details
    ISSN: 1572-9168
    Keywords: center hyperplane ; centred hyperplane ; distance ; k-set problem ; median hyperplane ; Minkowski space ; minsum hyperplane ; norm ; numerical approximation ; point set width problem ; robust statistics ; smooth norm.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In an arbitrary Minkowski space M, n≥2, let there be given an arbitrary finite set P of weighted points whose affine hull is n-dimensional. We show that the unit ball B of M has smooth boundary if and only if each median hyperplane (minimizing the sum of weighted distances with respect to P) is spanned by n affinely independent points from P. Moreover, B has the same property if and only if every center hyperplane (minimizing the maximal weighted distance with respect to P) has the same maximal distance to at least n+1 affinely independent points from P.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005165709146
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  • 7
    Electronic Resource
    Electronic Resource
    Die Boride HfCo3B2 und ZrCo3B2 als ternärer CaCu5-Typ (1969)
    Springer
    Monatshefte für Chemie 100 (1969), S. 224-230 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract The ternary bodides HfCo3B2 and ZrCo3B2 crystallize with the hexagonal D 2d structure type, space group P 6/mmm,a=4.840,c=3.036Å,c/a=0.627 anda=4.863,c=3.043Å,c/a=0.625, respectively. The boron atoms are located inside a trigonal prism that is familiar from other metal-rich borides. The ternary CaCu5 type has good space filling at a theoretical axial ratioc/a=0.75 and a theoretical radius ratio of 1.5 ∶ 1 ∶ 0.81.
    Notes: Zusammenfassung Die ternären Boride HfCo3B2 und ZrCo3B2 kristallisieren im hexagonalen D 2d-(CaCu5)-Strukturtyp, Raumgruppe P 6/mmm,a=4,840,c=3,036Å,c/a=0,627 bzw.a=4,863,c=3,043Å,c/a=0,625. Die Boratome liegen in einem trigonalen Prisma, das von anderen metallreichen Boriden her bekannt ist. Der ternäre CaCu5-Typ zeigt eine hohe Raumerfüllung bei einem theoret. Achsenverhältnisc/a=0,75 und einem theoret. Radienverhältnis 1,5 ∶ 1 ∶ 0,81.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00938259
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  • 8
    Electronic Resource
    Electronic Resource
    The Effects of Different Architectures on Thermal Fatigue in Particle Reinforced MMC for Heat Sink Applications (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 59 (Dec. 2008), p. 177-181 
    Details
    ISSN: 1662-8985
    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: Particle reinforced metal matrix composites are developed for heat sink applications. For power electronic devices like IGBT modules (Insulated Gate Bipolar Transistor) a baseplate material with high thermal conductivity combined with a low coefficient of thermal expansion is needed. Commonly AlSiC MMC are used with a high volume content of SiC particles (~ 70 vol.%). To improve the performance of these electronic modules particle reinforced materials with a higher thermal conductivity are developed for an advanced thermal management. For this purpose highly conducting diamond particles (TC ~ 1000 W/mK) are embedded in an Al matrix. These new diamond reinforced MMC were investigated concerning their thermal fatigue mechanisms compared to the common AlSiC MMC. Differences in reinforcement architecture and their effects on thermal fatigue damage were studied by in situ synchrotron tomography during thermal cycling
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.59.177.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    A note on the valuation of risky corporate bonds (1999)
    Springer
    OR spectrum 21 (1999), S. 35-47 
    Details
    ISSN: 1436-6304
    Keywords: Key words: Gaussian termstructure models – default risk – corporate bond valuation ; Schlüsselwörter: Gaußsche Zinsstrukturmodelle – Konkursrisiko – Bewertung von Unternehmensanleihen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Description / Table of Contents: Zusammenfassung. Einfache Formeln für Unternehmensanleihen mit und ohne Kupon werden auf der Basis des Bewertungsansatzes von Longstaff und Schwartz (1995) entwickelt. Das Konkursereignis wird mit Hilfe einer speziellen Zustandsvariablen überwacht: Dem Verhältnis von Unternehmensvermögen zu -verbindlichkeiten. Es wird gezeigt, daß geschlossene Lösungen existieren, wenn nicht die Höhe der Unternehmensverbindlichkeiten sondern der erwartete Verschuldungsgrad unter dem äquivalenten Risikomaßkonstant über die Zeit bleibt. Dies erm öglicht eine etwas konservativere Betrachtungsweise der Verschuldungspolitik einer Unternehmung, die immer dann berechtigt erscheint, wenn die Unternehmung nicht bereit oder in der Lage ist, den erwarteten Verschuldungsgrad über die Zeit deutlich zu reduzieren.
    Notes: Abstract. Simple formulas for the prices of corporate discount and coupon bonds are found using the Longstaff and Schwartz (1995) valuation approach for the debt claims of a firm, where default is triggered by a special state variable: the firm's asset-to-debt-ratio. Instead of keeping the total amount of debt constant over time, it is shown that closed form solutions exist under the alternative assumption that the level of leverage is expected to remain constant over time under the risk-neutralized measure. This encourages a more conservative view on the capital structure policy of the firm which might be appropriate in case the firm is neither willing nor able to reduce its expected level of leverage considerably over time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002910050079
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  • 10
    Electronic Resource
    Electronic Resource
    Identification of Nitrogen Compounds from Degradation of Dinitrotoluene and Toluylenediamine Isomers Within an Industrial Purification Plant (2000)
    Springer
    Microchimica acta 135 (2000), S. 1-7 
    Details
    ISSN: 1436-5073
    Keywords: Key words: Structure elucidation; trace analysis; degradation products of dinitrotoluene and toluylenediamine; LC/ESI-MS.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract.  The structure elucidation of some intermediates of the transformation of dinitrotoluene and toluylenediamine isomers is described. Methylnitroanilines, quinoxalines, benzimidazoles and cresols were identified using GC/MS, LC/MS and LC and UV detection. The separation of compounds from the aqueous phase was carried out by solid phase extraction with various column packings. The origin of the purification plant residue coloring is clarified and the related sources and possible pathways of formation of some compounds are given. Finally the results of biodegradation and ecotoxicological experiments [1] are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s006040070012
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