Sökning: "Zheng Liu"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Zheng Liu.

  1. 1. Life Cycle Assessment of Paper Based Printed Circuits

    Författare :Qiansu Wan; Li-Rong Zheng; Changqing Liu; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Printed Electronics; Environment; PCB; Life Cycle assessment; Emissions; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Printed circuit boards have been massively manufactured and wildly used in all kinds of electronic devices during people’s daily life for more than thirty years since the last century. As a highly integrated device mainly consists of silicon base, an etched copper layer and other soldered components, massive production of printed circuit boards are considered to be environmentally unfriendly due to the wet chemical manufacturing mode and lack of recycling ability. LÄS MER

  2. 2. Lysosomal Involvement in the Pathogenesis of Alzheimer's Disease

    Författare :Lin Zheng; Jan Marcusson; Alexei Terman; Martin Hallbeck; Lars Nilsson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Alzheimer’s disease (AD), the major cause of senile dementia, is associated with progressive formation of neurofibrillary tangles and extraneuronal plaques composed of amyloid beta peptide (Aβ). Aβ has been also found within Alzheimer neurons in association with the lysosomal system, an acidic vacuolar compartment possessing numerous hydrolytic enzymes. LÄS MER

  3. 3. Chargeand Light Management in Organic Solar Cells

    Författare :Zheng Tang; Olle Inganäs; René Janssen; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Solar cells based on organic materials are extensively investigated both in academia and industry, owing to their potential of being inexpensive, lightweight, flexible and suitable for roll-to-roll production. Performance of organic solar cells has been rapidly improving, and the state of the art organic solar cells have an efficiency over 10%. LÄS MER

  4. 4. Circuit Techniques for On-Chip Clocking and Synchronization

    Författare :Behzad Mesgarzadeh; Atila Alvandpour; Li-Rong Zheng; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Clocking-Synchronization-CMOS-Integrated Circuit; Electronics; Elektronik;

    Sammanfattning : Today’s microprocessors with millions of transistors perform high-complexity computing at multi-gigahertz clock frequencies. The ever-increasing chip size and speed call for new methodologies in clock distribution network. LÄS MER

  5. 5. Communication-Efficient Resource Allocation for Wireless Federated Learning Systems

    Författare :Chung-Hsuan Hu; Erik G. Larsson; Zheng Chen; Viktoria Fodor; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The training of machine learning (ML) models usually requires a massive amount of data. Nowadays, the ever-increasing number of connected user devices has benefited the development of ML algorithms by providing large sets of data that can be utilized for model training. LÄS MER