Sökning: "Functions"

Visar resultat 1 - 5 av 5311 avhandlingar innehållade ordet Functions.

  1. 1. Modulation of Neuronal Functions : the Role of SLC10A4

    Författare :Kalicharan Patra; Klas Kullander; Håkan Aldskogius; Per Svenningsson; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dopamine; acetylcholine; central nervous system; neuromuscular junctions; electrophysiology; monoamine; synaptic transmission; neuromodulation; Neuroscience; Neurovetenskap;

    Sammanfattning : Mental health of a person depends on the correct functioning of the brain. The brain and the spinal cord contain many types of cells, of which one important type are called the neurons. Neurons are special in the way they connect to each other to form large networks. LÄS MER

  2. 2. Non-selfadjoint operator functions

    Författare :Axel Torshage; Christian Engström; Marco Marletta; Umeå universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Non-linear spectral problem; numerical range; pseudospectrum; resolvent estimate; equivalence after extension; block operator matrices; operator functions; operator pencil; spectral divisor; joint numerical range; Mathematics; matematik;

    Sammanfattning : Spectral properties of linear operators and operator functions can be used to analyze models in nature. When dispersion and damping are taken into account, the dependence of the spectral parameter is in general non-linear and the operators are not selfadjoint. LÄS MER

  3. 3. Bounds on Hilbert Functions

    Författare :Ornella Greco; Mats Boij; Aldo Conca; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; Hilbert Functions; Commutative Algebra;

    Sammanfattning : This thesis is constituted of two articles, both related to Hilbert functions and h-vectors. In the first paper, we deal with h-vectorsof reduced zero-dimensional schemes in the projective plane, and, in particular, with the problem of finding the possible h-vectors for the union of two sets of points of given h-vectors. LÄS MER

  4. 4. Early Discourses on Colour and Cinema : Origins, Functions, Meanings

    Författare :Eirik Frisvold Hanssen; Astrid Söderbergh Widding; Eva Jørholt; Stockholms universitet; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; colour film; film history; film theory; film technology; film aesthetics; indexicality; intermediality; colour and sound; catalogue; Kinemacolor; Sergei M. Eisenstein; Film; Filmvetenskap;

    Sammanfattning : This dissertation is a historical and theoretical study of a number of discourses examining colour and cinema during the period 1909 to 1935 (trade press, film reviews, publications on film technology, manuals, catalogues and theoretical texts from the era). In this study, colour in cinema is considered as producing a number of aesthetic and representational questions which are contextualised historically; problems and qualities specifically associated with colour film are examined in terms of an interrelationship between historical, technical, industrial, and stylistic factors, as well as specific contemporary conceptions of cinema. LÄS MER

  5. 5. Control Lyapunov Functions : A Control Strategy for Damping of Power Oscillations in Large Power Systems

    Författare :Mehrdad Ghandhari; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; UPFC; CSC; QBT; Lyapunov function; Control Lyapunov Function; SIME; Sliding mode; Electric power engineering; Elkraftteknik;

    Sammanfattning : In the present climate of deregulation and privatisation, theutilities are often separated into generation, transmission anddistribution companies so as to help promote economic efficiencyand encourage competition. Also, environmental concerns,right-of-way and cost problems have delayed the construction ofboth generation facilities and new transmission lines while thedemand for electric power has continued to grow, which must bemet by increased loading of available lines. LÄS MER