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1H-MRSI (proton Magnetic Resonance Spectroscopic Imaging) is now widely used to assist physicists to analyze and quantify brain metabolites in a noninvasive way. In case of glioma, the brain tissue metabolite composition is not widely different but metabolites concentration are varying depending on the grade of the tumor. In the higher stage of the tumor, new metabolites could be detected such as...
Quantitative analysis of gas mixtures for detecting low concentrations of gases like acetone or ethanol in exhaled breath is of high interest in medical diagnostics and patient monitoring. In this purpose, we intend to use source separation methods for separating the gas sources measured with MOX sensors. These unsupervised methods require a relevant mathematical model of responses of MOX sensors...
The onset and progression of immune-mediated inflammatory arthritis, such as rheumatoid arthritis and spondyloarthritis, are linked to the IL23-IL17 immune axis, so that many therapeutic strategies aim at modulating this pathway. However, there is so far no possibility of an in vivo direct monitoring, without a biopsy, of the specific T cells involved in this modulation. Synovial perfusion, and thus...
This paper studies the organizational influences on failure rates. The failure rate model in MIL-HDBK-217F is extended to include organizational factors, and a Bayesian approach is proposed to quantify the organizational influences. In contrast to most explicit organizational models, this paper focuses on extracting information from failure rate data. The proposed Bayesian approach, however, can be...
Network security visualization is a highlighted topic of network security research in recent years, The existing research situation of network security visualization is analyzed. For the technical issues that the index of security situation is not accurate, and visual effects is not straightforward, the paper designed and implemented the security situation visualization prototype system based on geographic...
In this paper, a novel spectrum separation technique based on sparse representation is proposed to deal with Magnetic Resonance Spectroscopy (MRS) quantification which is used to measure the levels of different metabolites in brain tissues. Since a measured MR spectrum contains the spectra of numbers of metabolites and a baseline, the separation and quantification of them becomes difficult. A nonnegative...
To address the issue that the present nutrition/health care system can only provide qualitative services for pregnant women, a quantitative nutritional algorithm is proposed based on nutritional diagram & fuzzy theory, and a software system for providing quantitative nutritional guidance is developed based on a C/S & B/S hybrid architecture; the system gathers & analyzes the subjectpsilas...
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