Sökning: "Transient phenomenon"

Visar resultat 26 - 30 av 55 avhandlingar innehållade orden Transient phenomenon.

  1. 26. Den offentliga ohälsan : En historisk studie av barnpsykologi och -psykiatri i svensk media 1968-2008

    Författare :Peter Skagius; Karin Zetterqvist Nelson; Francis Lee; Solveig Jülich; Linköpings universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; child psychology; child psychiatry; expertise; experts; media; actor-network theory; history of science; child studies; public debate; public sphere; history of childhood; barnpsykologi; barnpsykiatri; media; dagstidningar; föräldratidning; expertis; aktör-nätverksteori; experter; vetenskapshistoria; barnstudier; samhällsdebatt; offentlighet; barndomshistoria;

    Sammanfattning : Svenska barns och ungas psykiska ohälsa har blivit en omdiskuterad fråga i den svenska offentligheten med rapporter och studier som visat på en tilltagande ohälsa. Samtidigt har kritiska röster i media menat att den uppfattade ökningen bland annat berott på förändrade diagnostiska kriterier och normer gällande hälsa och ohälsa. LÄS MER

  3. 27. Electrical Properties of Gold-related Defect Complexes in Silicon

    Författare :Einar Sveinbjörnsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DLTS; gettering; Au in Si; lithium diffusion; Au-H complexes; Au-Li complexes; deep levels; phosphorus diffusion; hydrogen in silicon;

    Sammanfattning : This thesis describes three extensive experiments concerning the properties of gold as an impurity atom in crystalline silicon. The first study is an investigation of the effect of phosphorus diffusion on the distribution of gold atoms within a silicon crystal. LÄS MER

  4. 28. Development of the Pressure-Time Method for Flow Rate Measurement in Hydropower Plants by Numerical Simulation

    Författare :Simindokht Saemi; Michel Cervantes; Thomas Staubli; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : Hydropower is a clean and sustainable energy resource developed since the late 19th century. To specify the hydraulic performance characteristics of hydraulic turbines, the volumetric flow rate as one of the few basic quantities should be determined. Discharge represents the most difficult quantity to measure. LÄS MER

  5. 29. Electromagnetic Modelling of Power Transformers with DC Magnetization

    Författare :Seyed Ali Mousavi; Göran Engdahl; S. V. Kulkarni; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transformer; Hysteresis; DC magnetization; GICs; FEM; reluctance network method;

    Sammanfattning : DC currents that flow through the ground can be injected to the star windings of power transformers from their grounded neutral points and close their path with transmission lines. The geomagnetically induced currents (GICs) and AC/DC convertors of high voltage direct current (HVDC) systems are the sources of such DC currents. LÄS MER

  7. 30. RHYTHM ARCHITECTURE : ON SEQUENTIAL ASPECTS OF MATERIALITIES IN URBAN SPACE

    Författare :Paulina Prieto De La Fuente; Institutionen för arkitektur och byggd miljö; []
    Nyckelord :HUMANIORA; HUMANITIES; URBAN SQUARE; RHYTHMANALYSIS; ARCHITECTURE; TIMELAPSE; EVERYDAY LIFE; FUNCTION;

    Sammanfattning : Even though architecture often might be conceived of as timeless, there has always been different ways of dealing with time in architectural discourse and practice. Since the early 20th century the temporal activities that goes on in and between buildings has, for example, been addressed by concepts such as function, flexibility and program. LÄS MER