Sökning: "active"

Visar resultat 6 - 10 av 6426 avhandlingar innehållade ordet active.

  1. 6. Xyloglucan-active enzymes : properties, structures and applications

    Författare :Martin J. Baumann; Tuula T. Teeri; Harry Brumer; Vincent Eijsink; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; xyloglucan; xyloglucan endo-transglycosylase hydrolase; xyloglucan endo-hydrolase; xyloglucan endo-transglycosylase; XET; xyloglucan oligosaccharides; synthesis; carbohydrate; cellulose; crystal structure; fiber; surface modification; Populus tremula x Populus tremuloides; Hybrid aspen; nasturtium; NXG; Biochemistry; Biokemi;

    Sammanfattning : Cellulosabaserade material är världens rikligast förekommande förnyelsebara råvara. Växters cellväggar är naturliga kompositmaterial där den kristallina cellulosan är inbäddad i en väv av hemicellulosa, strukturproteiner och lignin. LÄS MER

  3. 7. Aktiv utrikespolitik : Sverige-södra Afrika 1969-1987

    Författare :Ove Nordenmark; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Political science; Statsvetenskap;

    Sammanfattning : .... LÄS MER

  4. 8. On the development of the present active participle in Bulgarian

    Författare :Arne Hult; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Active participles; present active participle; past active participle 1; gerund; history of the Bulgarian language; Church Slavonic; Middle Bulgarian;

    Sammanfattning : The purpose of the study is to chronicle the loss and to a certain extent the restoration of the present active participle in Middle Bulgarian. Also problems concerning the past active participle 1 and the question of the gerund are touched upon. LÄS MER

  5. 9. Modeling Approaches for Active Antenna Transmitters

    Författare :Parastoo Taghikhani; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal model.; MIMO; power amplifier; Active antenna transmitter; hybrid beamforming; electrothermal; active subarray antenna; nonlinear distortion;

    Sammanfattning : The rapid growth of data traffic in mobile communications has attracted interest to Multiple-Input-Multiple-Output (MIMO) communication systems at millimeter-wave (mmWave) frequencies. MIMO systems exploit active antenna arrays transmitter configurations to obtain higher energy efficiency and beamforming flexibility. LÄS MER

  7. 10. Active Stabilization of Thermoacoustic Oscillation

    Författare :Martin Ansbjerg Kjaer; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; subspace–based identification; fuel actuation; thermoacoustic instability; LQR; Active control;

    Sammanfattning : Combustion processes serve as important sources of energy for both power generation and for transport, ranging from large scale power stations to micro turbines and aeroplane engines. Lean premixed combustion offers a potential to reduce the emission levels, but suffers from instability problems which can be overcome by the use of active control. LÄS MER