Sökning: "adjustable gap"

Hittade 4 avhandlingar innehållade orden adjustable gap.

  1. 1. Mass Spectrometry with Electrospray Ionization from an Adjustable Gap

    Detta är en avhandling från Stockholm : KTH

    Författare :Patrik Ek; KTH.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electrospray ionization; mass spectrometry; nanoelectrospray; ESI; MS; chip; emitter; gap; liquid bridge; nozzle; peptides; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi;

    Sammanfattning : In this thesis the fabrication and analytical evaluation of two new electrospray emitters utilized for mass spectrometry analysis is presented. The emitters are based on a new concept, where the spray orifice can be varied in size. The thesis is based on two papers.All present-day nanoelectrospray emitters have fixed dimensions. LÄS MER

  2. 2. New methods for sensitive analysis with nanoelectrospray ionization mass spectrometry

    Detta är en avhandling från Stockholm : KTH

    Författare :Patrik Ek; KTH.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mass spectrometry; electrospray ionization; nanoelectrospray ionization; adjustable gap; emitter; miniaturization; improved sensitivity; nanoliter picoliter sample volumes; Alzheimer’s disease; amyloid-beta Aβ ; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi;

    Sammanfattning : In this thesis, new methods that address some current limitations in nanoelectrospray mass spectrometry (nESI-MS) analysis are presented. One of the major objectives is the potential gain in sensitivity that can be obtained when employing the proposed techniques. LÄS MER

  3. 3. On the operation of light-emitting electrochemical cells

    Detta är en avhandling från Umeå : Umeå Universitet

    Författare :E. Mattias Lindh; Umeå universitet.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Artificial Light; Organic Electronics; Light-emitting Electrochemical Cells; Electrochemical Doping; Thin-film Optical Model; Optical Modes;

    Sammanfattning : We are in the midst of a technological revolution that permeates nearly all human activities; artificial light is one of the most visible contributors in this societal change. If more efficient, green, and versatile light sources can be developed, they might improve the life of millions of people around the world while causing minimal damage to our climate and environment. LÄS MER

  4. 4. Evaluation of Adapted Passenger Cars for Drivers with Physical Disabilities

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Björn Peters; Statens väg- och transportforskningsinstitut.; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Disabled person; Driver; Car; Adaptation; Equipment; Vehicle handling; Simulator; Adaptive cruise control; Driving aptitude; Thesis; 911 Road: Components of the vehicle; 911 Road: Components of the vehicle; 841 Road: Road user behaviour; 841 Road: Road user behaviour; 84 Road: Road users; 84 Road: Road users;

    Sammanfattning : Driving can provide independent and efficient mobility. However, according to the driving license directive (91/439/EEC) are persons with locomotor impairments are only allowed drive if their disabilities can be compensated. Compensation can be realised by vehicle adaptations. LÄS MER