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The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform

Tuomo Kässi - One of the best experts on this subject based on the ideXlab platform.

Samira Ranaei - One of the best experts on this subject based on the ideXlab platform.

Zhang Yin-han - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative Study on tumor microvessels in rat lung carcinogenesis
    Journal of Modern Oncology, 2006
    Co-Authors: Zhang Yin-han
    Abstract:

    Objective:To investigate the quantity of angiogenesis during rat lung carcinogenesis. Methods:Factor VIII-related antigen immunohistochemical staining was used in 56 specimens from rats with lung squamous cell carcinoma. The Quantitative measurements of microvessels were performed using an image analysis system. Results:Tumor angiogenesis can be observed easily in early infiltrative carcinoma and infiltrative carcinoma. The quantity of microvessels in early carcinoma and infiltrative carcinoma was 256.1±81.7and 548.4±175.1 respectively. Conclusion:Tumor angiogenesis is highly related to the infiltration of tumor. The image analysis system is objective and efficient for the Quantitative Study of microvessels.

Shmuel Malkin - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative Study of state 1-state 2 transitions in broken chloroplasts—comparison to in-vivo properties
    Photosynthesis Research, 1992
    Co-Authors: Gur Braun, Shmuel Malkin
    Abstract:

    A detailed Quantitative Study was conducted on state 1-state 2 transition and its reversal in broken chloroplasts by modulated fluorimetry. The characteristics of the transition obtained supported other previous in-vitro findings. More importantly, a very close Quantitative similarity was obtained under suitable conditions to previous in-vivo studies, particularly in approaching a constancy of F_m/F_0 during the transition and the equality of the fractional change of these fluorescence parameters with the calculated light distribution fraction to PS II. This confirms that in broken chloroplasts too, the state transitions involve reciprocal changes in the absorption cross-sections of PS II and PS I.

Jinbo Bai - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative Study of interface interphase in epoxy graphene based nanocomposites by combining stem and eels
    ACS Applied Materials & Interfaces, 2016
    Co-Authors: Yu Liu, Annlenaig Hamon, Paul Haghiashtiani, Thomas Reiss, Benhui Fan, Jinbo Bai
    Abstract:

    A Quantitative Study of the interphase and interface of graphene nanoplatelets (GNPs)/epoxy and graphene oxide (GO)/epoxy was carried out by combining scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS). The interphase regions between GNPs and epoxy matrix were clearly identified by the discrepancy of the plasmon peak positions in the low energy-loss spectra due to different valence electron densities. The spectrum acquisitions were carried out along lines across the interface. An interphase thickness of 13 and 12.5 nm was measured for GNPs/epoxy and GO/epoxy, respectively. The density of the GNPs/epoxy interphase was 2.89% higher than that of the epoxy matrix. However, the density of the GO/epoxy interphase was 1.37% lower than that of the epoxy matrix. The interphase layer thickness measured in this work is in good agreement with the transition layer theory, which proposed an area with modulus linearly varying across a finite width. The results provide an insigh...

  • Quantitative Study of Interface/Interphase in Epoxy/Graphene-Based Nanocomposites by Combining STEM and EELS
    ACS Applied Materials & Interfaces, 2016
    Co-Authors: Yu Liu, Annlenaig Hamon, Thomas Reiss, Benhui Fan, Paul Haghi-ashtiani, Jinbo Bai
    Abstract:

    A Quantitative Study of the interphase and interface of graphene nanoplatelets (GNPs)/epoxy and graphene oxide (GO)/epoxy was carried out by combining scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS). The interphase regions between GNPs and epoxy matrix were clearly identified by the discrepancy of the plasmon peak positions in the low energy-loss spectra due to different valence electron densities. The spectrum acquisitions were carried out along lines across the interface. An interphase thickness of 13 and 12.5 nm was measured for GNPs/epoxy and GO/epoxy, respectively. The density of the GNPs/epoxy interphase was 2.89% higher than that of the epoxy matrix. However, the density of the GO/epoxy interphase was 1.37% lower than that of the epoxy matrix. The interphase layer thickness measured in this work is in good agreement with the transition layer theory, which proposed an area with modulus linearly varying across a finite width. The results provide an insight into the interphase for carbon-based polymer composites that can help to design the functionalization of nanofillers to improve the composite properties.

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