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  • Metastases  (2)
  • 3-D deprmetion  (1)
  • Active site  (1)
  • Aldolase  (1)
  • Chemistry  (1)
  • Electromagnetic induction  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    An exploration of the binding site of aldolase using N-(ω-hydroxyalkyl)glycolamidobisphosphoric esters
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 1041 (1990), S. 254-256 
    Details
    ISSN: 0167-4838
    Schlagwort(e): Active site ; Aldolase ; Binding constant ; Biphosphoric ester ; Substrate analog
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-4838(90)90280-S
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  • 2
    Digitale Medien
    Digitale Medien
    Finite element analysis of edge lamination during hot rolling process of aluminium alloy (1995)
    Springer
    Archive of applied mechanics 65 (1995), S. 365-373 
    Details
    ISSN: 1432-0681
    Schlagwort(e): Key words Hot rolling ; edge lamination ; 3-D deprmetion ; rigid plasticity ; FEM
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Summary  The rigid-plastic finite element method is applied to the analysis of the three-dimensional deformation behaviour, in particular the forming of edge lamination during the multi-pass hot roughing process of aluminium. The calculation is carried out for various rolling conditions and reduction schedules, and their influence on the edge lamination is examined. The results suggest that the crop loss due to the edge lamination can be reduced by increasing the roll diameter, the reduction per pass and the initial width of the slab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00787530
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  • 3
    Digitale Medien
    Digitale Medien
    Seafloor electromagnetic induction studies in the Bay of Bengal (2000)
    Springer
    Marine geophysical researches 21 (2000), S. 1-21 
    Details
    ISSN: 1573-0581
    Schlagwort(e): Electromagnetic induction ; ocean bottom magnetometer ; 85° E ridge ; Ninety East ridge ; geomagnetic depth sounding ; vertical gradient sounding ; thin-sheet modelling ; 3-D forward modelling
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract Seafloor magnetometer array experiments were conducted in the Bay of Bengal to delineate the subsurface conductivity structure in the close vicinity of the 85° E Ridge and Ninety East Ridge (NER), and also to study the upper mantle conductivity structure of the Bay of Bengal. The seafloor experiments were conducted in three phases. Array 1991 consisted of five seafloor stations across the 85° E Ridge along 14° N latitude with a land reference station at Selam (SLM). Array 1992 also consisted of five seafloor stations across 85° E Ridge along 12° N latitude. Here we used the data from Annamalainagar Magnetic Obervatory (ANN) as land reference data. Array 1995 consisted of four seafloor stations across the NER along 9° N latitude with land reference station at Tirunelveli (TIR). OBM-S4 magnetometers were used for seafloor measurements. The geomagnetic Depth Sounding (GDS) method was used to investigate the subsurface lateral conductivity contrasts. The vertical gradient sounding (VGS) method was used to deliniate the depth-resistivity structure of the oceanic crust and upper mantle. 1-D inversion of the VGS responses were conducted and obtained a 3-layer depth-resistivity model. The top layer has a resistivity of 150–500 Ωm and a thickness of about 15–50 km. The second layer is highly resistive (2000–9000 Ωm) followed by a very low resistive (0.1–50 Ωm) layer at a depth of about 250–450 km. The 3-component magnetic field variations and the observed induction arrows indicated that the electromagnetic induction process in the Bay of Bengal is complex. We made an attempt to solve this problem numerically and followed two approaches, namely (1) thin-sheet modelling and (2) 3-D forward modelling. These model calculations jointly show that the observed induction arrows could be explained in terms of shallow subsurface features such as deep-sea fans of Bay of Bengal, the resistive 85° E Ridge and the sea water column above the seafloor stations. VGS and 3-D forward model responses agree fairly well and provided depth-resistivity profile as a resistive oceanic crust and upper mantle underlained by a very low resistive zone at a depth of about 250–400 km. This depth-range to the low resistive zone coincide with the seismic low velocity zone of the northeastern Indian Ocean derived from the seismic tomography. Thus we propose an electrical conductivity structure for the oceanic crust and upper mantle of the Bay of Bengal.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1004788217878
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  • 4
    Digitale Medien
    Digitale Medien
    Intracranial metastases of hepatocellular carcinoma: CT and MRI (1996)
    Springer
    Neuroradiology 38 (1996), S. S31 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Key words Brain ; Metastases ; Hepatocellular carcinoma ; Computed tomography ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We report clinical characteristics and CT and MRI in 16 patients with brain metastases due to hepatocellular carcinoma (HCC). Eight of these 16 patients presented with apoplexy-like symptoms (50 %). Pulmonary metastases were found in 13 cases (81.3 %). The mean survival from the appearance of cerebral metastases to death was 6.2 weeks, which is one of the shortest survival terms in metastatic brain tumours. Haemorrhagic brain metastases were observed in 14 patients (87.5 %) with a tendency for the frequency of bleeding to increase in proportion to the size of the tumour. On both contrast-enhanced CT and MRI, metastatic brain tumours enhanced strongly, suggesting that brain metastases, like HCC, are also hypervascular. MRI is useful in evaluating brain metastases from HCC, especially in order to differentiate tumour from haemorrhage. Our results demonstrated a poor prognosis and bleeding tendency of brain metastases due to HCC and showed the usefulness of CT and MRI in achieving a correct diagnosis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002340050914
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  • 5
    Digitale Medien
    Digitale Medien
    Intracranial metastases of hepatocellular carcinoma: CT and MRI (1996)
    Springer
    Neuroradiology 38 (1996), S. S31 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Brain ; Metastases ; Hepatocellular carcinoma ; Computed tomography ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We report clinical characteristics and CT and MRI in 16 patients with brain metastases due to hepatocellular carcinoma (HCC). Eight of these 16 patients presented with apoplexy-like symptoms (50 %). Pulmonary metastases were found in 13 cases (81.3 %). The mean survival from the appearance of cerebral metastases to death was 6.2 weeks, which is one of the shortest survival terms in metastatic brain tumours. Haemorrhagic brain metastases were observed in 14 patients (87.5 %) with a tendency for the frequency of bleeding to increase in proportion to the size of the tumour. On both contrast-enhanced CT and MRI, metastatic brain tumours enhanced strongly, suggesting that brain metastases, like HCC, are also hypervascular. MRI is useful in evaluating brain metastases from HCC, especially in order to differentiate tumour from haemorrhage. Our results demonstrated a poor prognosis and bleeding tendency of brain metastases due to HCC and showed the usefulness of CT and MRI in achieving a correct diagnosis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02278115
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  • 6
    Digitale Medien
    Digitale Medien
    Gas-filled polymers. III. Mechanical behavior of polycarbonate and poly(vinyl chloride) (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 17 (1973), S. 2395-2405 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Gasification behavior and its effects on mechanical properties were determined for amorphous polycarbonate (PC) and poly(vinyl chloride) (PVC). Nitrogen-gasified PC and PVC exhibit interior regions containing gas bubbles surrounded by surface layers of void-free polymer, while in the helium-gasified polymers no gas bubbles could be observed. Scanning electron microscope (SEM) observations of the bubbles in nitrogengasified PC indicate that the bubble walls are smooth and featureless (in contrast to the diffuse walls with fibrils of polymer extending into the bubbles observed previously in gasified polyethylene). For both PC and PVC, neither the yield stress nor the elongation to fracture showed any appreciable variation between gasified and ungasified material. The lack of a significant effect of gas bubbles on the drawing behavior in these glassy polymers stands in contrast with the pronounced effect noted with semicrystalline polyethylene. The origin of this difference in behavior and its relation to the crystallization process in polyethylene are discussed.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1973.070170806
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