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We propose a statistical method for uncovering gene pathways that characterize cancer heterogeneity. To incorporate knowledge of the pathways into the model, we define a set of activities of pathways from microarray gene expression data based on the sparse probabilistic principal component analysis. A pathway activity logistic regression model is then formulated for cancer phenotype. To select pathway...
We have developed a diamond SAW resonator capable of over 3 GHz using a SiO2/IDT/AlN/diamond structure. The structure enables a thicker Al-IDT and a lower series resistance for the SAW resonator based on FEM calculation results. These attributes lead to low insertion loss for SAW devices over 3 GHz compared to SiO2/IDT/ZnO/diamond structures. A 2port 6.4 GHz resonator was fabricated and has successfully...
Diamond surface acoustic wave (SAW) resonators based on a SiO2/ZnO/diamond structure have been successfully developed to operate at a high frequency (ranging in GHz) and with good temperature stability. According to Lesson's model, in order to obtain low phase noise the resonators in the oscillator circuit should have high power durability. This paper describes the improved power durability attained...
The amplitude modulation reflectometer system has been developed to measure the density profile in detail on the compact PWI (plasma-wall interaction) device (CPD) experiments. The probing frequency range was 6-18 GHz, and its frequency-switching time was 10 mus in an arbitrary step. Using the broadband fast-scanning reflectometer, the wide-range density profile can be measured with high time resolution...
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