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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 36 (1964), S. 11-15 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 633 (1991), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 48 (1956), S. 1444-1448 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Vanilloid receptor-1 (VR1, also known as TRPV1) is a thermosensitive, nonselective cation channel that is expressed by capsaicin-sensitive sensory afferents and is activated by noxious heat, acidic pH and the alkaloid irritant capsaicin. Although VR1 gene disruption results in a loss of ...
    Type of Medium: Electronic Resource
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  • 5
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    Unknown
    Oxford : Periodicals Archive Online (PAO)
    Cambridge journal of economics. 15:1 (1991:Mar.) 61 
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  • 6
    facet.materialart.
    Unknown
    Oxford : Periodicals Archive Online (PAO)
    Cambridge journal of economics. 12:1 (1988:Mar.) 29 
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Environmental geology 38 (1999), S. 301-321 
    ISSN: 1432-0495
    Keywords: Key words Sinkhole ; Karst ; Lake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Fluid exchange between surficial waters and groundwater in karst environments, and the processes that control exchange, are of critical concern to water management districts and planners. High-resolution seismic data were collected from 30 lakes of north-central Florida. In each case study, lake structure and geomorphology were controlled by solution and/or mechanical processes. Processes that control lake development are twofold: (1) karstification or dissolution of the underlying limestone, and (2) the collapse, subsidence, or slumping of overburden to form sinkholes. Initial lake formation is directly related to the karst topography of the underlying host limestone. Case studies have shown that lakes can be divided by geomorphic types into progressive developmental phases: (1) active subsidence or collapse phase (young); (2) transitional phase (middle age); (3) baselevel phase (mature); and (4) polje (drowned prairie) – broad flat-bottom that have one or all phases of sinkhole. Using these criteria, Florida lakes can be classified by size, fill, subsurface features, and geomorphology.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 35 (2000), S. 3467-3478 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A new class of braided composites has been designed to maximise thetotal energy absorbed during tensile failure. Braided loops oflight, continuous fiber tows are configured in such a way that theymust be drawn through relatively large displacements before they comeinto direct contact with one another. Upon loop contact, thematerial hardens locally, forcing further damage to develop by thesame process elsewhere. In this way the entire gauge section absorbsenergy before ultimate failure. Levels of energy absorption per unitvolume reach 30 MJ/m3 and, per unit mass, 18 J/g. The mechanismsinvolved in damage delocalisation and failure are detailed andmodeled at a very simple level. While the current values of energyabsorption are already attractive, the simple models indicate muchhigher values for composites that have been optimised.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Rheologica acta 7 (1968), S. 85-87 
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Summary The geometry of eighteen “cones” used in two commercial cone- and-plate viscometers has been determined by measuring the profiles along four radii at right angles to each other. It is found that the “cones” are not truly conical and that there is considerable uncertainty in assigning a value to the cone angle and to the position of the apex. Large differences were also found between the calculated mean values and those quoted by the manufacturers. Thus the latter values should not be used without confirmation. The effect of these results on viscosity determination is discussed.
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  • 10
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Zusammenfassung Ein koaxiales Zylinderviskosimeter, das im Handel erhältlich ist, wurde in ein automatisches Gerät umgebaut, indem der von Hand zu bedienende Schalter für die Geschwindigkeitswahl durch eine Nockensteuerung zur Zeitvorgabe und einen mit einem Solenoid betriebenen Schalter ersetzt wurde. Dadurch kann das Viskosimeter mit einer vorgewählten Folge von Rotationsgeschwindigkeiten betrieben werden. Das durch die Flüssigkeit bei der jeweiligen Geschwindigkeit hervorgerufene Drehmoment wird durch ein eingebautes Potentiometer gemessen. Das von dort kommende elektrische Signal wird auf Lochstreifen unter Benutzung eines Datenerfassungssystems aufgenommen. Die Umwandlung der Drehmoment-Geschwindigkeitswerte in Scherspannungs-Schergeschwindigkeitsbeziehungen geschieht mit Hilfe eines Digitalrechners unter Benutzung von in der Literatur existierenden expliziten Gleichungen. Das Rechenprogramm enthält Schritte zur Größenglättung und Kurvenanpassung. Dieser letzte Schritt berücksichtigt die Differentiation der Drehmoment-Geschwindigkeitswerte, wie es bei der Anwendung der expliziten Formeln verlangt wird. Obwohl dieses Gerät zur Vereinfachung der Viskositätsbestimmung als Laborviskosimeter benutzt werden kann, ist es eigentlich als ein mit einer Datenverarbeitungsanlage gekoppeltes Viskosimeter entwickelt worden. Es wird zur Sammlung von Informationen über nicht-newtonische Eigenschaften einer Prozeßflüssigkeit benutzt, um festzustellen, wie diese durch die verschiedenen Stoffveränderlichen beeinflußt werden. Es scheint dies notwendig als erster Schritt in der Entwicklung von Kontrollgeräten für Prozesse, in denen die Fließeigenschaften der Flüssigkeit von Bedeutung sind.
    Notes: Summary A coaxial cylinder viscometer, which is available commercially, has been converted into an automatic instrument by replacing the manually-operated speed-selection switch with a cam timer and solenoid-operated switch. This enables the viscometer to operate using a pre-selected sequence of rotational speeds. The torque due to the fluid at each speed is measured by a built-in potentiometer and the electrical signal from this is recorded on punched tape using a data-logger. The conversion of the torque-speed data into shear stress/shear rate relations is carried out with the aid of a digital computer using the explicit formulae that exist in the literature. The computer programme incorporates routines for data smoothing and curve fitting, in which the latter allows for the differentiation of the torque-speed data demanded by the use of the explicit formulae. Although this instrument may be used as a laboratory viscometer to facilitate viscosity determination, it has been developed primarily as an on-line viscometer and will be used for gathering information on the non-Newtonian properties of a process fluid in order to determine how these are affected by different material variables. This appears to be the necessary first step in developing control instrumentation for processes in which the flow properties of the fluid are important.
    Type of Medium: Electronic Resource
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