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CMOS integrated circuits are prone to hazards such as Single Event Transients (SETs) caused by radiation strikes in high energy radiation environments. For synthesis of high frequency signals for circuits used in such environments, we propose use of quadrature phase LC oscillators. In addition to providing higher tolerance to SETs, these oscillators are also able to provide wider tuning range, which...
The noise spectrum of any oscillator consists of amplitude noise and phase noise. Significant fraction of the noise spectrum obtained from circuit simulations (such as periodic steady state and periodic noise analyses) may consist of amplitude noise, which is not of any significance in majority of applications of oscillators. In this paper, we present a simple method to analyze the contribution of...
Breast cancer is the most common type of cancer in women worldwide. About ten percent of women are confronted with breast cancer in their lives. Breast cancer can be most efficiently treated if detected at an early sage. Imaging of the breast can be accomplished using several modalities such as: X-ray, MRI, CT, ultrasound, and now molecular imaging. Image registration plays a critical role in breast...
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