Essays about: "Low-Frequency"

Showing result 1 - 5 of 140 essays containing the word Low-Frequency.

  1. 1. Research and Testing of an Electromechanical solution for Vibration Assisted Drilling of Aerospace Materials

    University essay from Uppsala universitet/Solcellsteknik

    Author : Jonathan Nordenholm; [2020]
    Keywords : vibration; drilling; chips; aerospace; advanced drilling unit;

    Abstract : This thesis considers vibration drilling in aerospace materials. The tolerances of the drilled holes in aerospace industry are very low since hole quality is an important factor. Conventional methods of drilling create long ribbon formed chips that increases the heat formation and decreases the hole quality. READ MORE

  3. 2. Immediate breast reconstruction in breast cancer patients2018 at the University Hospital of Örebro

    University essay from Örebro universitet/Institutionen för medicinska vetenskaper

    Author : Emily Gromelsky Ljungcrantz; [2020]
    Keywords : Breast cancer; Mastectomy; Reconstruction; IBR;

    Abstract : Introduction: To save lives, mastectomy is an essential intervention, but it can also causephysical and psychological trauma. An important step in restoring breast cancer patient’squality of life is to offer reconstruction. Immediate breast reconstruction (IBR) is thealternative that provides highest patient-reported life quality post surgery. READ MORE

  4. 3. A corpus-based investigation of Swedish upper secondary school students’ vocabulary

    University essay from Mittuniversitetet/Institutionen för humaniora och samhällsvetenskap

    Author : Christian Holmberg Sjöling; [2020]
    Keywords : ;

    Abstract : The aim of this investigation was to contribute with more knowledge concerning the learning and teaching of English vocabulary in Swedish upper secondary school in Sundsvall by answering the following research questions: Which CEFR level does each group’s vocabulary meet after29excluding K1 and K2 words? How accurate is the vocabulary production of the two groups in relation to each CEFR level? I also hypothesized that the group of students attending the Natural Science programme would be more proficient than the group attending the Economics programme since the former had studied the course English 5 longer and attend a more theoretical and advanced programme than the latter. Therefore, I gathered 30 essays from students attending the Natural Science programme at one school and 30 essays from students attending the Economics programme at another school to be analysed and compared. READ MORE

  5. 4. Strategies for Road Profile in Adaptive Suspension Control

    University essay from Linköpings universitet/Fordonssystem

    Author : Fredrik Skoglund; [2020]
    Keywords : ;

    Abstract : Semi-active suspension systems has become an increasingly popular alternative to the passive suspensions in recent time. By varying the spring stiffness and damping coefficient in the system, different characteristics can be achieved depending on driver preferability and road disturbances. READ MORE

  6. 5. FEM modelling of sound reduction index in partition CLT wall

    University essay from Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/Teknisk akustik

    Author : Adam Hultin; Erik Hörström; [2020]
    Keywords : Technology and Engineering;

    Abstract : Constructing buildings with wood brings many advantages, especially regarding environmental aspects, which has brought an up-rise in these types of structures. However, one of the main issues regarding wooden structures is its tendency to perform poorly acoustically in lower frequencies compared to heavier structures. READ MORE