Sökning: "Qiang Li"

Hittade 5 avhandlingar innehållade orden Qiang Li.

  1. 1. Silicon Based Photonic Devices and Their Applications

    Författare :Qiang Li; Min Qiu; Geert Morthier; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Optics; Optik;

    Sammanfattning : The integration of modern electronic devices for information processing is rapidly ap-proaching an interconnect bottleneck. Silicon photonics can be a promising solution forcircumventing this bottleneck, as already being anticipated by many electronics manu-facturers including HP, IBM and Intel. LÄS MER

  3. 2. Direct and Large-Eddy Simulations of Turbulent  Boundary Layers with Heat Transfer

    Författare :Qiang Li; Philipp Schlatter; Dan S Henningson; Gary Coleman; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; direct numerical simulation DNS ; large-eddy simulation LES ; turbulent boundary layer; passive scalar; coherent structures; free-stream t urbulence FST ; structure ensemble dynamics SED ; massively parallel simulations;

    Sammanfattning : .... LÄS MER

  4. 3. Simulations of turbulent boundary layers with heat transfer

    Författare :Qiang Li; Dan S. Henningson; Ulrich Rist; KTH; []
    Nyckelord :DNS; LES; Turbulent boundary layer; passive scalar; large-scale structures; massively parallel simulations;

    Sammanfattning : .... LÄS MER

  5. 4. Printed RFID Humidity Sensor Tags for Flexible Smart Systems

    Författare :Yi Feng; Werner Zapka; Li-Rong Zheng; Qiang Chen; Donald Lupo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Intelligent packaging; humidity sensor; wireless sensor; chipless RFID; multi-walled carbon nanotube; inkjet printing; LC resonator; paper electronics; flexible electronics.;

    Sammanfattning : Radio frequency identification (RFID) and sensing are two key technologies enabling the Internet of Things (IoT). Development of RFID tags augmented with sensing capabilities (RFID sensor tags) would allow a variety of new applications, leading to a new paradigm of the IoT. LÄS MER

  7. 5. Sub-Nyquist Sampling Impulse Radio UWB Receivers for the Internet-of-Things

    Författare :Qin Zhou; Hannu Tenhunen; Li-Rong Zheng; Qiang Chen; Kari Halonen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra-Wideband; impulse radio; receiver; energy detection; compressed sensing; sub-Nyquist sampling; Internet-of-Things; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : In the era of Internet-of-Things, the demand for short range wireless links featured by low-power and low-cost, robust communication and high-precision positioning is growing rapidly. Impulse Radio Ultra-Wideband (IR-UWB) technology characterized by the transmission of sub-nanosecond pulses spanning up to several GHz band with extremely low power spectral density emerges as a promising candidate. LÄS MER