An 8-b 650-MHz folding analog-to-digital converter (ADC) with analog error correction in the comparators is presented. With an input frequency of 150 MHz, 7.8 effective bits are obtained. The ADC is implemented in a 1-pm 13-GHz triple-level interconnect bipolar process, requiring 850 mW from a single -4.5-V supply. The die size is 4.2 mm’.

Increasing evidence shows that dysregulation of microRNAs (miRNAs) is involved in malignant transformation. We investigated the clinical significance of miR-650 and its involvement in chemoresistance to docetaxel. Our results showed that the relative expression level of miR-650 was significantly higher in LAD tissues than in corresponding nontumor tissues and high level of miR-650 expression wa...

Since the appearing probability of each English symbol P (a), ...P (b), ...P (” ”), ..., P (; ) is not uniform, we should be able to reduce the number of required bits. Based on the probability of each English symbol, we can compute the entropy H(E) ∼= 4.5 bits / char. If we use Huffman coding taught in this lecture to encode English keyboard, then we only need around 4.7 bits / char. Furthermo...

AbstmctThe coming decade of fast, cheap and miniaturized electronics and sensory devices opens new pathways for the development of sophisticated equipment to overcome limitations of the human senses. This paper addresses the technical feasibility of augmenting human vision through Sensing Super-position by mixing natural Hman sensing. The current implementation of the device nmskxes visual and ...

4 Department of Bioengineering, Stanford University, Stanford, CA 94305, USA #: Corresponding authors: Prof. Nidhi Bhutani, Ph.D. Prof. Fan Yang, Ph.D. Department of Ortho. Surg. Departments of Ortho. Surg. and Bioeng. 300 Pasteur Dr. , Edwards R164 300 Pasteur Dr., Edwards R105 Stanford, CA 94305-5341 Stanford, CA, 94305-5341 Tel: 650 721 2234 Tel: 650 725 7128 Fax: 650 723 9370 Fax: 650 723 9...

The study was conducted to analyse possible interactions between noise and shift work, and fatigue as a function of age. In a large questionnaire survey, we assessed personal and environmental risk factors related to fatigue. Noise exposure at work (L(Aeq, 8hr)) was measured with personal noise dosimetry. The sample included 254 day and shift workers, and was divided into 2 age groups (<40- and...

Sulfate reduction rates in the surface sediments from 17 stations from an along-slope transect (1,300 m) and from a cross-slope transect (855–4,766 m) were determined in the continental margin sediments of the Benguela Upwelling system. Profiles at all sites in the upwelling area showed increasing sulfate reduction rates from near zero at the surface to a peak at 2–5 cm (up to 29 nmol cm23 d21)...