Sökning: "radiofrequency measurement"

Hittade 3 avhandlingar innehållade orden radiofrequency measurement.

  1. 1. Rapid measurements of the moisture content in biofuel

    Detta är en avhandling från Institutionen för Samhällsteknik

    Författare :Jenny Nyström; Mälardalens högskola.; [2006]
    Nyckelord :radiofrequency measurement; moisture content measurement; fuel characterization; biofuel; time domain measurement; Bulk measurement; Multivariate data analysis;

    Sammanfattning : An increasing number of power plants in Scandinavia are beginning to use biofuel instead of coal or oil. The material in the new fuel is a mixture of woodchips, mostly Pine, Spruce and Salix, bark, GROT (tops and branches from felling waste) and sawdust from sawmills. It is heterogeneous, having a moisture content varying from 15% up to 65%. LÄS MER

  2. 2. Development of Novel Diffusion NMR Methods : Preclinical Applications in Colloidal Model Systems

    Detta är en avhandling från Lund University, Faculty of Science, Center for Chemistry and Chemical Engineering

    Författare :Stefanie Eriksson; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; diffusion NMR; diffusion tensor; Microscopic anisotropy; q-MAS; exchange; liquid crystals; yeast cell suspensions;

    Sammanfattning : NMR is a powerful non-invasive technique utilizing radiofrequency and gradient pulses to manipulate the spinsof atomic nuclei. In particular, diffusion NMR uses strong magnetic field gradients to label the positions of spins allowing for the measurement of translational motion of molecules in liquids. LÄS MER

  3. 3. Digital Compensation Techniques for Transmitters inWireless Communications Networks

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Efrain Zenteno; KTH.; KTH.; Högskolan i Gävle.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology; Digital compensation; MIMO; wireless communications; satellite; Volterra; Amplfiers; HW effects;

    Sammanfattning : Since they appeared, wireless technologies have deeply transformed our society. Today, wireless internet access and other wireless applications demandincreasingly more traffic. However, the continuous traffic increase can be unbearableand requires rethinking and redesigning the wireless technologies inmany different aspects. LÄS MER