Sökning: "aircraft operation"

Visar resultat 36 - 39 av 39 avhandlingar innehållade orden aircraft operation.

  1. 36. Analysis and Design of Conformal Array Antennas

    Författare :Patrik Persson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conformal antennas; conformal arrays; UTD; high frequency method; MoM; hybrid method; mutual coupling; singly curved surface; doubly curved surface; geodesics; dielectric covered circular cylinder; non-paraxial region. paraxial region; waveguide fed; Electrical engineering; Elektroteknik;

    Sammanfattning : Today there is a great need for communication between people and even between things, using systems onboard e.g. aircraft, cars, ships and satellites. As a consequence, these communications needs require antennas mounted on or integrated in the surfaces of different vehicles or platforms, i. LÄS MER

  3. 37. Tandem optical parametric oscillators using volume Bragg grating spectral control

    Författare :Markus Henriksson; Fredrik Laurell; Hiromasa Ito; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optical parametric oscillators; mid-infrared; volume Bragg gratings; PPKTP; ZGP; nonlinear optics; narrowband OPO; Physics; Fysik;

    Sammanfattning : This thesis describes research on near degenerate quasi phase-matched opticalparametric oscillators (OPO) where volume Bragg gratings (VBG) are used toproduce narrow oscillation bandwidth. These OPOs are then used to pump a secondOPO to generate mid-infrared radiation. The atmospheric transmission windows in the 3. LÄS MER

  4. 38. Issues in the Design and Analysis of Dependable Distributed Real-Time Systems

    Författare :Olof Bridal; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The importance of computer system dependability is increasing as safety-critical control systems are becoming more prevalent. As an example, the techniques and concepts used in present-day fly-by-wire aircraft can be expected to be introduced in tomorrow's automobiles. LÄS MER

  5. 39. Adapting to increased automation in the aviation industry through performance measurement and training : Barriers and potential

    Författare :Johan Rignér; Lena Mårtensson; Pernilla Ulfvengren; Don Harris; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial work science; Industriell arbetsvetenskap;

    Sammanfattning : The increased use of automation has affected the work on the flight deck. The Single European Sky ATM Research (SESAR), deployed with the purpose to increase the European ATM system performance, identifies automation as a key enabler to increase future system performance. The aviation system is a complex large socio-technical system. LÄS MER