Sökning: "Spectroscopic sensor"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden Spectroscopic sensor.

  1. 1. Functionalized Graphene as Superlattice and Gas Sensor

    Författare :Tianbo Duan; Klaus Leifer; Andrey Turchanin; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; graphene; functionalization; gas sensor; superlattice;

    Sammanfattning : Graphene, an atomic-thin carbon sheet with carbon atoms tightly packed honeycomb-like lattice, has attracted enormous interest due to its unique chemical and physical properties. However, the intrinsic zero bandgap characteristic of graphene has so far prevented graphene from building effective electronic and optoelectronic devices. LÄS MER

  3. 2. Membrane Induced Structure in Transmembrane Signaling Proteins and Peptides : Peptide–Lipid Interactions Studied by Spectroscopic Methods

    Författare :Sofia E. Unnerståle; Lena Mäler; Jason Schnell; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; peptide-lipid interaction; paddle domain; voltage gating; voltage sensor domain; micelle; phospholipid bicelle; solution structure; HAMP domain; nuclear magnetic resonance spectroscopy; circular dichroism spectroscopy; nonspecific interaction; Biophysics; biofysik;

    Sammanfattning : Biological membranes, defining the boundary of cells and eukaryotic organelles, are mainly composed of lipids and membrane proteins. Interactions between these lipids and proteins are needed to preserve the tight seal of the membrane, but also to induce structure for proper function in many membrane proteins. LÄS MER

  4. 3. Lab on a chip for electrophysiological measurements with control of the oxygen content : optical manipulation and spectroscopic analysis of biological cells

    Författare :Ahmed Alrifaiy; Ove Axner; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Medical Engineering for Healthcare; Medicinsk teknik för hälsovård;

    Sammanfattning : Stroke affects nearly 20 million people around the world every year. Clinically, stroke is a result of brain damage due to the shortage of oxygen delivered to the nerve cells. To minimize suffering and costs related to the disease, extensive research is performed on different levels. LÄS MER

  5. 4. Flow injection systems for process analytical chemistry

    Författare :Ingrid Lukkari; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Flow injection; Sequential injection; Process analytical chemistry; Multivariate calibration; Sensor injection; Gas-diffusion; Sample clean-up;

    Sammanfattning : Flow injection systems have great potential for sample handling and analysis in process analytical chemistry. The flexibility and versatility of flow injection manifolds can he utilized in specific applications of sample conditioning and analysis. LÄS MER

  7. 5. Laser Spectroscopic Techniques for Combustion Diagnostics Directed Towards Industrial Applications

    Författare :Hans Seyfried; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Teknik; Technological sciences; Fysik; Physics; Combustion; Gas turbine; HCCI; Engine; High-Speed; Thermographic phosphors; PLIF; LIF; Laser Diagnostics; Laser-Induced Fluorescence; Laser technology; Laserteknik; Motors and propulsion systems; Motorer; framdrivningssystem;

    Sammanfattning : In the work presented in the thesis, different laser spectroscopic techniques were utilized for measurement of species concentrations, as well as for surface thermometry. Experiments were conducted in various combustion environments, ranging from laboratory burners to truck-sized internal combustion (IC) engines, gas turbine combustors and a full-size aircraft turbofan engine. LÄS MER