Sökning: "Li An"

Visar resultat 1 - 5 av 614 avhandlingar innehållade orden Li An.

  1. 1. Modelling, Analysis and Design of RF Mixed-Signal Mixer for Wireless Communications

    Författare :Li Li; KTH; []
    Nyckelord :RF; INTEGRATED CIRCUITS; MIXED-SIGNAL; MIXER; WIRELESS COMMUNICATIONS; NOISE ANALYSIS; SUBSTRATE COUPLING.;

    Sammanfattning : The explosive growth of the market for wirelesscommunications is driving low cost, highly integrated designsand complex RF/analog mixed-signal integrated circuit (RF AMSIC) products. RF transceiver application is one of the mostimportant wireless applications. LÄS MER

  3. 2. Exposure to inorganic arsenic in pregnancy and metabolism-nutrition interaction

    Författare :Li Li; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Inorganic arsenic is metabolized by most mammals, including humans, via alternating reduction and oxidative methylation with S-adenosylmethionine as main methyl donor. Thus, it seems likely that it is influenced by the availability of methyl groups. LÄS MER

  4. 3. Load Bearing Capacity and Behaviour of Composite Slabs with Profiled Steel Sheet

    Författare :Li An; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; load bearing capacity; composite slabs; shear resistance; concrete;

    Sammanfattning : In many cases the capacity of composite slabs with profiled steel sheeting depends on the shear resistance at the sheet-concrete interface. This shear resistance is essential to the interaction between the steel sheeting and the concrete. Besides this, other factors also affect the behaviour of composite slabs. LÄS MER

  5. 4. Synthesis and Optical Properties of ZnO Nanostructures

    Författare :Li-Li Yang; Qingxiang Zhao; Magnus Willander; Jinghai Yang; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ZnO nanorods; size-controllable growth; post-annealing; optical properties; Optical physics; Optisk fysik;

    Sammanfattning : One-dimensional ZnO nanostructures have great potential applications in the fields of optoelectronic and sensor devices. Therefore, it is really important to realize the controllable growth of one-dimensional ZnO nanostructures and investigate their properties. LÄS MER

  7. 5. CO2 electrochemical reduction: Techno-economic evaluation and experimental research for producing methanol

    Författare :Fangfang Li; Xiaoyan Ji; Joakim Lundgren; Klas Engvall; Hailong Li; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energiteknik; Energy Engineering;

    Sammanfattning : Recently, CO2 electrochemical reduction (CO2R) has gained popularity, to cope with the strict environmental rules on greenhouse gas emissions, and to convert CO2 to value-added chemicals/fuels. Ionic liquids (ILs) have been considered as potential media for CO2R owing to their multi-functions in enhancing CO2R solubility and improving CO2R reaction rate and product selectivity. LÄS MER