An application of fuzzy logic reasoning for GIS temporal modeling of dynamic processes
摘要:
The analysis and modeling of dynamic processes require the consideration of both spatial and temporal attributes of data and their integration into a GIS database. However, current GIS raster databases have severe limitations related to the temporal component of data. Data are generally stored through a series of snapshot layers associated to particular instants in time. If the interval between two consecutive snapshots is too long the essential information about the change may remain undetected. In this study, spatio-temporal interpolation based on fuzzy logic theory was applied in order to model the missing information about change that happened between consecutive snapshots. Three different scenarios of rural-to-urban landuse transformation were conceived to simulate different dynamics of change using module FUZZY-TEMP integrated in the GRASS4.1 environment. The obtained results were validated through a comparison of the urban boundaries obtained from aerial photographs and those which were generated using the proposed methodology. The results confirm the potential of the approach to produce realistic simulations of the dynamics of the urbanization process. (C) 2000 Elsevier Science B.V. All rights reserved.
Synthesis, spectral characterization and antitumor activity of phenothiazine derivatives
作者:Kasi Venkatesan、Vardhineedi Sri Venkata Satyanarayana、Amaravadi Sivakumar、Chitteti Ramamurthy、Chinnasamy Thirunavukkarusu
DOI:10.1002/jhet.3980
日期:2020.7
Different types of phenothiazinederivatives were synthesized by reactions of 10‐alkyl‐10H ‐phenothiazine‐3‐carbaldehydes. Structures of the prepared compounds were confirmed through spectroscopic techniques such as IR, 1H NMR, 13C NMR and mass spectroscopy. All the compounds were studied for their antitumor activities.
通过10-烷基-10 H-吩噻嗪-3-甲醛的反应合成了不同类型的吩噻嗪衍生物。通过诸如IR,1 H NMR,13 C NMR和质谱的光谱技术确认了所制备化合物的结构。研究了所有化合物的抗肿瘤活性。
Design, Synthesis and Evaluation of Novel 9-substituted Carbazole Derivatives as Potential Anticancer Agents
作者:Nitin Kumar、Devender Pathak
DOI:10.2174/1570180812666150430002118
日期:2015.9.9
energy. Above mentioned compounds were synthesized by starting with carbazole and characterized by FTIR, 1H-NMR, 13C-NMR, MASS spectrometry and elemental analysis. All the synthesized compounds were evaluated for their anticancer activity by SRB assay method against Human Breast Cancer Line (MCF7). All the tested compounds showed moderate to good anticancer activity. Compound 3d and 6c exhibited highest