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  • Chemistry  (5)
  • 341-U1421A; 341-U1421C; AGE; Age, error; Depth, bottom/max; Depth, composite; Depth, composite bottom; Depth, composite top; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp341; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; IODP Depth Scale Terminology; Joides Resolution; Sample code/label; Sample code/label 2; Sea ice rafted quartz grains; Southern Alaska Margin: Tectonics, Climate and Sedimentation  (1)
  • 36.40. + d  (1)
  • 73.30+y
Collection
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    Sea ice rafted quartz grains of IODP Site 341-U1421 (2020)
    PANGAEA
    Details
    Publication Date: 2023-11-25
    Keywords: 341-U1421A; 341-U1421C; AGE; Age, error; Depth, bottom/max; Depth, composite; Depth, composite bottom; Depth, composite top; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp341; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; IODP Depth Scale Terminology; Joides Resolution; Sample code/label; Sample code/label 2; Sea ice rafted quartz grains; Southern Alaska Margin: Tectonics, Climate and Sedimentation
    Type: Dataset
    Format: text/tab-separated-values, 378 data points
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    DATA PANGAEA
  • 2
    Electronic Resource
    Electronic Resource
    The adsorption of Xenon on both low and high work-function metals (1987)
    Springer
    Applied physics 44 (1987), S. 93-95 
    Details
    ISSN: 1432-0630
    Keywords: 68.55+b ; 64.70.Kb ; 73.30+y
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The structure of unoccupied electronic states in Xe condensed on differently prepared metal surfaces has been observed by inverse photoemission spectroscopy. The Xe/metal interface is interpreted in the framework of Schottky barrier theory. On low workfunction surfaces a wetting to non-wetting phase transition is inferred from dramatic changes in the unoccupied level structure. Existing data in the literature indicate non-wetting behaviour of Xe on low work-function materials to be a quite general phenomenon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617897
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Ultrastructural localization of aluminium in liver of aluminium maltol-treated rabbits by laser microprobe mass analysis (1989)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 18 (1989), S. 598-602 
    Details
    ISSN: 0887-6134
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: By means of laser microprobe mass analysis (LAMMA), we have studied the ultrastructural localization of aluminium in livers of aluminium maltol-treated rabbits. This animal model was developed to study long-term aluminium toxicity using systemic (intravenous) administration of aluminium. We could only detect aluminium in electron-dense inclusion bodies found in large, sometimes multinucleated cells. These results prove that the actual observation of aluminium deposits in liver with LAMMA gives more information than bulk analysis and can be very useful to explore mechanisms of toxicity.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200180815
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    High-resolution electron microscopy and electron energy-loss spectroscopy of giant palladium clusters (1995)
    Springer
    The European physical journal 34 (1995), S. 283-291 
    Details
    ISSN: 1434-6079
    Keywords: 79.20.Kz ; 61.14.-x ; 36.40. + d
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Combined structural and chemical characterization of cationic polynuclear palladium coordination compounds Pd561L60(OAc)180, where L=1,10-phenantroline or 2,2′-bipyridine has been carried out by high-resolution electron microscopy (HREM) and analytical electron microscopy methods including electron energy-loss spectroscopy (EELS), zero-loss electron spectroscopic imaging, and energy-dispersive X-ray spectroscopy (EDX). The cell structure of the cluster matter with almost completely uniform metal core size distributions centered around 2.3 ±0.5 nm was observed. Zero-loss energy filtering allowed to improve the image contrast and resolution. HREM images showed that most of the palladium clusters had a cubo-octahedral shape. Some of them had a distorted icosahedron structure exhibiting multiple twinning. The selected-area electron diffraction patterns confirmed the face centered cubic structure with lattice parameter close to that of metallic palladium. The energy-loss spectra of the populations of clusters contained several bands, which could be assigned to the delayed Pd M4, 5-edge at 362 eV, the Pd M3-edge at 533 eV and the Pd M2-edge at 561 eV, the NK-edge at about 400 eV, the O K-edge at 532 eV overlapping with the Pd M3-edge and the carbon C K-edge at 284 eV. Background subtraction was applied to reveal the exact positions and fine structure of low intensity elemental peaks. EELS evaluations have been confirmed by EDX. The recorded series of the Pd M-edges and the N K-edge in the spectra of the giant palladium clusters obviously were related to Pd-Pd- and Pd-ligand bonding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437574
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  • 5
    Electronic Resource
    Electronic Resource
    In-depth limitation of the Lamma 500 for the in situ localization of organic compounds in biological embedded tissue samples (1988)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 16 (1988), S. 113-119 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The objective of this study was exploration of the potential, offered by the laser microprobe mass spectrometer (LAMMA), for the in situ localization of organic targets in embedded tissues by means of structurally relevant ions. A series of model systems was designed to evaluate stepwise the analytical problems involved. A preliminary screening pointed to the position of the target in comparison to the actual sample surface as a determining parameter. Refined simulations were carried out with sandwich samples, consisting of an epon carrier (thickness 1 μm), coated with microcrystalline targets and covered with a layer between 5 and 50 nm of different materials (epon, carbon, formvar). In addition to a stimulated conversion of molecular into fragment ions, the presence of a barrier leads to a drastic loss of sensitivity (20-50 x) and unacceptable degradation of the mass spectrometric quality (resolution, calibration).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200160120
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  • 6
    Electronic Resource
    Electronic Resource
    Study of intracellular deposition of the anti-leprosy drug Clofazimine in mouse spleen using laser microprobe mass analysis (1993)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 22 (1993), S. 221-225 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Laser microprobe mass analysis (LAMMA) was used to study the composition of the brick-red crystalline material which had accumulated in the spleen of mice that had received the anti-leprosy drug Clofazimine in their diet for several months. The crystalline deposits light-microscopically resembled pure Clofazimine crystals. The presence of the drug in the crystals was indicated by LAMMA by the appearance of the chloride mass peaks in the negative mass spectra. More specific information was obtained from the positive mass spectra. A mass signal for the protonated molecule was present.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200220402
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  • 7
    Electronic Resource
    Electronic Resource
    Thermal analysis of styrene-alkyl methacrylate polymers. I. Glass transition temperatures (1978)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 22 (1978), S. 2275-2283 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The glass transition temperatures (Tg's) of several polystyrenes and styrene-alkyl methacrylate copolymers and terpolymers were measured using thermomechanical analysis (TMA) and differential scanning calorimetry (DSC). The polymers studied had number-average molecular weights from 3000 to 250,000 g/mole. The results indicate that the composition dependence of the Tg's for the copolymers and terpolymers can be satisfactorily described by a general Fox equation. In general, the measured Tg's of the copolymer and terpolymer samples depend more on the steric effects of the constituent pendent groups than on their molecular weights. The chain flexibility rather than the size of the pendent group is the determining factor in the glass transition properties of the styrene polymers.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1978.070220819
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  • 8
    Electronic Resource
    Electronic Resource
    Thermal analysis of styrene-alkyl methacrylate polymers. II. Thermogravimetric kinetics (1978)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 22 (1978), S. 2285-2293 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The thermal stability and degradation kinetics of several polystyrenes and styrene-alkyl methacrylate copolymers and terpolymers with a number-average molecular weight (M̄n) of 6000-250,000 g/mole have been studied using dynamic thermogravimetry (TG). The degradation kinetics of each polymer sample have been successfully attributed to a sample first-order reaction expression. The results indicate that the thermal stability and degradation kinetics of the polymers are independent of the size of the molecules within the molecular weight range investigated. The steric hindrance effects of the pendent groups appear to be responsible for the improved thermal stability and resistance of C—C bond scission in the styrene-alkyl methacrylate copolymers and terpolymers.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1978.070220820
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