Sökning: "Electronics"

Visar resultat 1 - 5 av 1039 uppsatser innehållade ordet Electronics.

  1. 1. Avoiding Frequency Cancellation Using Multiple Microphones in a Surveillance Camera

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Victoria Ringsmose; [2021]
    Nyckelord :Audio; analog electronics; acoustics; interferense; cancelled frequencies; surveillance; multiple microphones; frequency analysis; crossover filter; analog filter; Technology and Engineering;

    Sammanfattning : In surveillance it is important that the recordings are accurate and in as high quality as possible. The surveillance surroundings and equipment can alter and change the audio and needs to be compensated for. This master thesis project investigates whether using multiple microphones could improve the audio quality. LÄS MER

  2. 2. Rocks in Vogue : on material flows within electronic devices

    Master-uppsats, Konstfack/Institutionen för design, inredningsarkitektur och visuell kommunikation (DIV)Konstfack/Industridesign

    Författare :Giorgia Burzio; [2021]
    Nyckelord :Design research; Material flows; Electronics; Energy; Battery; Care; Waste; Recycling; Craft; Critique; Landscape;

    Sammanfattning : Landscapes have been exploited and polluted by humans in order to obtain metals. Materials are treated as commodities: extracted, used inside our devices and appliances, then discarded as useless matter. The timespan of efficiency is shortened more and more due to obsolescence, material desire and constant innovation. LÄS MER

  3. 3. Synthesis of Graphene - Carbon Nanotube Hybrid Structures

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

    Författare :Aniruddha Paul; [2021]
    Nyckelord :Graphene; Carbon nanotubes; Graphene-CNT hybrid structures; Chemical Vapor Deposition CVD ; Grafen; Kolnanorör; Grafen-CNT-hybridstrukturer; Kemisk ångdeposition CVD ;

    Sammanfattning : Graphene and Carbon nanotubes (CNTs) have been researched for more than a decade due to their extraordinary properties and advantages towards applications like electronics, structural re-enforcements, thermal management and energy storage. Graphene-CNT hybrid structures have been predicted to further enhance the exceptional properties and overcome some of the shortcomings of the individual materials. LÄS MER

  4. 4. Model Predictive Climate Control for Electric Vehicles

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik; Uppsala universitet/Avdelningen för systemteknik

    Författare :Erik Norstedt; Olof Bräne; [2021]
    Nyckelord :MPC; model predictive control; climate control; electric vehicle; battery; thermal management; electrified vehicle; battery electric vehicle; nonlinear MPC; custom cost functions; elfordon; temperaturreglering;

    Sammanfattning : This thesis explores the possibility of using an optimal control scheme called Model Predictive Control (MPC), to control climatization systems for electric vehicles. Some components of electric vehicles, for example the batteries and power electronics, are sensitive to temperature and for this reason it is important that their temperature is well regulated. LÄS MER

  5. 5. Evaluation of Approaches for Representation and Sentiment of Customer Reviews

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

    Författare :Stavros Giorgis; [2021]
    Nyckelord :machine learning; nlp; text analytics; sentiment analysis; transformers; tfidf; bow; fasttext; word2vec; bert; xlnet; roberta; maskininlärning; nlp; textanalys; sentimentanalys; transformatorer; tfidf; bow; fasttext; word2vec; bert; xlnet; roberta;

    Sammanfattning : Classification of sentiment on customer reviews is a real-world application for many companies that offer text analytics and opinion extraction on customer reviews on different domains such as consumer electronics, hotels, restaurants, and car rental agencies. Natural Language Processing’s latest progress has seen the development of many new state-of-the-art approaches for representing the meaning of sentences, phrases, and words in the text using vector space models, so-called embeddings. LÄS MER