Sökning: "mechanical reproduction"

Visar resultat 6 - 10 av 15 avhandlingar innehållade orden mechanical reproduction.

  1. 6. Communication acoustics in classroom environments : on the use of assistive listening devices

    Författare :Johan Odelius; John S. Bradley; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : Assistive listening devices (ALDs) are used in classrooms to assist communication for students with hearing loss. An ALD, a system of external microphones, transmits sound directly to the students' hearing aids. The signal is coupled to the hearing aid using a radio frequency (FM) or an induction loop (IL) system. LÄS MER

  3. 7. Attraction channel as entrance to fishways

    Författare :Elianne Wassvik; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : The utilization of rivers for hydropower production leads to problems for fish migration. Migratory fish that swim upstream for reproduction need to overcome obstructions to reach their spawning grounds. On their way upstream they follow high water velocities. LÄS MER

  4. 8. 3D signal sounds for driver assistance systems

    Författare :André Lundkvist; Christoffer Patten; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : With an increasing number of advanced driver assistance systems in cars, it is important to know how the driver is affected by different kinds of information signals. Many of the systems already used in cars rely on visual information, and therefore require visual attention. LÄS MER

  5. 9. 3D Auditory Displays for Driver Assistance Systems

    Författare :André Lundkvist; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : A constantly increasing number of advanced driver assistance systems are implemented in cars.The driver is required to interpret the data reported by these systems while driving, and thereforeit is important to know how the information signals provided by such systems affect the driver. LÄS MER

  7. 10. Arbete, skola och familj i Sverige på 1900-talet

    Författare :Antony Lindgren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Work Environment; Industriell produktionsmiljö;

    Sammanfattning : In this thesis an attempt is made to explain the decisive grounds on which the choices of education and work are made. The precise question at issue is; Why does one choose the industrial-technical course of study in upper secondary school? Thus a special interest is taken in the practical vocational training. LÄS MER