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The present study is focused on clarifying the influence of semidry flue gas desulfurization (SFGD) ash in replacing natural gypsum (NG) in the production of ordinary Portland cement (OPC). Clinker, 3 wt% of Slag and 6-12 wt% of modified SFGD ash were ground in a laboratory ball mill to produce cement. The properties of SFGD ash were investigated via chemical composition analysis, Scanning electron...
Some samples of ash were taken from a Semi-dry FGD dealing with sinter gas which was released from iron industry. Scanning electron microscope (SEM), X-ray diffraction (XRD) and Fourier Transform Infrared Spectrometer (FTIR) were employed to identify the samples in order to investigate their physical and chemical characteristics. The result shows that: this kinds of semi-dry FGD ash is stable, and...
This paper describes an approach for the microwave characterization of breast tumors based on the 2D-FDTD simulation. Tumors and the breast tissue are modeled as dielectric targets and homogeneous dispersive media by Debye model. The CNRs (complex natural resonances) of the tumors, which can be used to characterize the tumors, can be extracted by the Prony' s method directly from the time-domain response...
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