Sökning: "stationary"

Visar resultat 1 - 5 av 555 avhandlingar innehållade ordet stationary.

  1. 1. Multipole Moments of Stationary Spacetimes

    Detta är en avhandling från Matematiska institutionen

    Författare :Thomas Bäckdahl; Linköpings universitet.; Linköpings universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; multipole moments; stationary; static; relativistic; spacetime; convergence; specified; NATURAL SCIENCES Physics Other physics Mathematical physics; NATURVETENSKAP Fysik Övrig fysik Matematisk fysik;

    Sammanfattning : In this thesis we study the relativistic multipole moments for stationary asymptotically flat spacetimes as introduced by Geroch and Hansen. These multipole moments give an asymptotic description of the gravitational field in a coordinate independent way. LÄS MER

  2. 2. Design and evaluation of stationary polymer electrolyte fuel cell systems

    Detta är en avhandling från Stockholm : Kemiteknik

    Författare :Cecilia Wallmark; KTH.; [2004]
    Nyckelord :Small-scale; stationary; fuel cell system; polymer electrolyte fuel cell; PEFC system; reformer; thermodynamic modelling; pinch technology; exergy analyses; system configuration; test facility; experiments; application; simulation; installation; ener;

    Sammanfattning : The objectives of this doctoral thesis are to give a basisincluding methods for the development of stationary polymerelectrolyte fuel cell (PEFC) systems for combined heat andpower production. Moreover, the objectives include identifyingprerequisites, requirements and possibilities for PEFC systemsproducing heat and power for buildings in Sweden. LÄS MER

  3. 3. Noise diagnostics of Stationary and Non-Stationary Reactor Processes

    Detta är en avhandling från Stockholm : Kemiteknik

    Författare :Carl Sunde; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; core-barrel vibrations; break-frequency method; wavelet; decay ratio; detector tube impacting; two-phase flow; spectral analysis; noise diagnostics;

    Sammanfattning : This thesis concerns the application of noise diagnostics on different problems in the area of reactor physics involving both stationary and non-stationary core processes. Five different problems are treated, divided into three different parts. LÄS MER

  4. 4. Zwitterionic Sulfobetaine Polymers as Stationary Phases for Liquid Chromatography

    Detta är en avhandling från Umeå : Kemi

    Författare :Erika Wikberg; Umeå universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sulfobetaine; polymer; RAFT polymerization; zwitterionic; separarion; liquid chromatography; stationary phase; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi;

    Sammanfattning : Liquid chromatography is an important separation technique for a vast number of analytes. This thesis mainly focuses on the development of stationary phases for liquid chromatography based on zwitterionic sulfobetaine polymers. LÄS MER

  5. 5. Economic Aspects of Fuel Cell-Based Stationary Energy Systems

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

    Författare :Suat Sevencan; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel cells; niche market; stationary applications; feasibility; multi-generation; Chemical Engineering; Kemiteknik;

    Sammanfattning : It is evident that human activity has an important impact on climate. Constantly increasing energy demand is one of the biggest causes of climate change. The fifth assessment report of the Inter-governmental panel on climate change states that decarbonisation of electricity generation is a key component of climate change mitigation. LÄS MER