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Myeloid‐derived suppressor cells (MDSCs) play an important role in tumor immune escape. Recent studies have shown that MDSCs contribute to tumor progression under psychological stress, but the underlying mechanism of MDSCs mobilization and recruitment remains largely unknown. In the present study, a chronic restraint stress paradigm was applied to the H22 hepatocellular carcinoma (HCC) bearing mice...
An innovative method applied for suppression sidelobe in synthetic aperture radar (SAR) images is presented in this paper. The basic idea is to decompose the chirp signal into the unrelated chaos frequency modulation (CFM) signals uniformly in CFM space and add up their pulse compression results. As various CFM signal has different ideal thumbtack autocorrelation function, the energy from the sidelobe...
Whether targets can be easily and precisely recognized is becoming a significant criterion on measuring the performance of radar. During the process of radar imaging, this criterion is always affected by the extent of sidelobe suppression. Currently, the methods of sidelobe suppression are over-studied and effective but it also owns some various shortages. In order to promote the technique of sidelobe...
An innovative algorithm to suppress the strong azimuth ambiguity in single-look complex (SLC) synthetic aperture radar (SAR) images is presented. The basic idea is to construct a subspace with low ambiguous power and project the original image to the aforementioned subspace to suppress the azimuth ambiguity by the minimum mean square error estimation (MMSE). Compared with most traditional approaches,...
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