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Sökning: (WFRF:(Stirrups Kathleen)) srt2:(2013) pers:(Wareham Nicholas J) mspu:(article) pers:(Langenberg Claudia)

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1.
  • Berndt, Jaqueline, 1963- (författare)
  • Mangaesque
  • 2020
  • Annan publikation (övrigt vetenskapligt/konstnärligt)
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2.
  • Do, Lan, et al. (författare)
  • High Sensitivity Method to Estimate Distribution of Hyaluronan Molecular Sizes in Small Biological Samples Using Gas-Phase Electrophoretic Mobility Molecular Analysis.
  • 2015
  • Ingår i: International Journal of Cell Biology. - : Hindawi Limited. - 1687-8876 .- 1687-8884.
  • Tidskriftsartikel (refereegranskat)abstract
    • Hyaluronan is a negatively charged polydisperse polysaccharide where both its size and tissue concentration play an important role in many physiological and pathological processes. The various functions of hyaluronan depend on its molecular size. Up to now, it has been difficult to study the role of hyaluronan in diseases with pathological changes in the extracellular matrix where availability is low or tissue samples are small. Difficulty to obtain large enough biopsies from human diseased tissue or tissue from animal models has also restricted the study of hyaluronan. In this paper, we demonstrate that gas-phase electrophoretic molecular mobility analyzer (GEMMA) can be used to estimate the distribution of hyaluronan molecular sizes in biological samples with a limited amount of hyaluronan. The low detection level of the GEMMA method allows for estimation of hyaluronan molecular sizes from different parts of small organs. Hence, the GEMMA method opens opportunity to attain a profile over the distribution of hyaluronan molecular sizes and estimate changes caused by disease or experimental conditions that has not been possible to obtain before.
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3.
  • Tan, Siyu, et al. (författare)
  • A 5 GHz CT ^Delta;Σ ADC with 250 MHz Signal Bandwidth in 28 nm-FDSOI CMOS
  • 2019
  • Ingår i: 2019 IEEE Nordic Circuits and Systems Conference, NORCAS 2019 : NORCHIP and International Symposium of System-on-Chip, SoC 2019 - Proceedings - NORCHIP and International Symposium of System-on-Chip, SoC 2019 - Proceedings. - 9781728127705 - 9781728127699
  • Konferensbidrag (refereegranskat)abstract
    • This paper presents a continuous-time ΔΣ ADC in a 28nm-FDSOI CMOS technology. The ADC is clocked at 5GHz with a signal bandwidth of 250 MHz, for an oversampling ratio (OSR) of only 10. The conversion from high-level model to circuit-level implementation requires multiple high-speed design methodologies and a careful layout. A 4th order loop filter is adopted to enhance quantization noise shaping in presence of a low OSR. The loop filter is built with inverter-based integrators, and the transistors are tuned by adjusting body-biasing voltages. The extra loop delay exceeds one clock cycle, requiring two additional feedback paths to restore the nominal noise transfer function. Furthermore, current-mode logic is used in the digital part to improve the signal transition speed. The ΔΣ ADC has a simulated SNDR of 73.1 dB for a simulated power consumption of 232mW.
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  • Resultat 1-4 av 4

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