Sökning: "Frequency Quality"

Visar resultat 1 - 5 av 703 uppsatser innehållade orden Frequency Quality.

  1. 1. Adherence in patients with heart failure. Relationships to symptom burden and hospitalization frequency : A cross-sectional survey study

    Master-uppsats, Malmö universitet/Institutionen för vårdvetenskap (VV)

    Författare :Helen Moe; [2024]
    Nyckelord :Adherence; Cross sectional study; Heart failure; Hospitalization-frequency; Non-adherence; Symptom burden;

    Sammanfattning : Aim: The aim of the study was to investigate the degree of adherence and non-adherence to treatment regimen in the population with heart failure, as well as to explore relationships to symptom burden and hospitalization-frequency. Introduction: Heart failure – a chronic disease with a somber prognosis and high mortality, incidence and prevalence increasing world-wide. LÄS MER

  3. 2. Design Investigation of Passive Radiators in Loudspeakers

    Master-uppsats, Lunds universitet/Innovation

    Författare :Fabrice Dufberg; Valter Hamberger; [2024]
    Nyckelord :passive radiator; loudspeaker; speaker tuning; Thiele Small parameters; frequency response; Technology and Engineering;

    Sammanfattning : Passive radiators are components that can be integrated into loudspeakers to amplify the bass frequencies. To ensure good sound quality, the passive radiator, the speaker driver, and the loudspeaker enclosure must all be well-dimensioned and fine-tuned in relation to each other. LÄS MER

  4. 3. Inductive fast charging of IoT devices : An in-depth analysis of short-range wireless charging technologies based on induction

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Franz Wikner; [2024]
    Nyckelord :Electromagnetic power transfer; Inductive power transfer; Short distance WPT;

    Sammanfattning : In the era of Internet of things (IoT), sensor-equipped devices exchange data over networks. In battery powered IoT devices, the lifespan of the devices is often much longer than the battery life, leading to multiple costly and environmentally hazardous battery replacements during the operational life of the devices. LÄS MER

  5. 4. “ALLT ÄR DEN LILLA RÅTTANS FEL, HÖRDE FRÅN EN SÄKER KÄLLA ATT HEN OCKSÅ SYSSLAR MED KRIMINELLA VERKSAMHETER” - En kvantitativ innehållsanalys om medborgarjournalistikens kvalitet på Flashback

    Kandidat-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

    Författare :Emelie Gustafsson; Josefine Gerdtman; [2023-03-10]
    Nyckelord :Medborgarjournalistik; användargenererat innehåll UGC ; kvalitet; Flashback;

    Sammanfattning : As interactive media have grown, citizen journalism has gained greater importance. Almost half of Sweden's population takes part in news delivery on social media, where the discussion forum Flashback is one of the platforms. LÄS MER

  7. 5. Developing a portable, customizable, single-channel EEG device for homecare and validating it against a commercial EEG device

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Máté Károly Tóth; [2023]
    Nyckelord :Electroencephalography EEG ; Portable EEG; Single-channel EEG; Commercial EEG; Brain-machine interface; Prototype development; Elektroencefalografi EEG ; Bärbar EEG; Enkanaligt EEG; Kommersiellt EEG; Hjärna-maskin-gränssnitt; Prototyputveckling;

    Sammanfattning : There are several commercial electroencephalography (EEG) devices on the market; however, affordable devices are not versatile for diverse research applications. The purpose of this project was to investigate how to develop a low-cost, portable, single-channel EEG system for a research institute that could be used for neurofeedback-related applications in homecare. LÄS MER