Sökning: "energy delay space"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden energy delay space.

1. 1. Methods for determining focal point and delay for ultrasound arrays and multichannel electronics

   Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

   Författare :Svante Rosenlind; [2023]
   Nyckelord :Focusing algorithms; k-wave; Spatiotemporal inverse filter; Gerchberg- Saxton algorithm; Focused ultrasound; Technology and Engineering;

   Sammanfattning : High intensity focused ultrasound is a growing technique for tissue ablation, among other uses, and given its destructive capabilities, there is a need for control of where the energy is delivered. There exist a number of methods for focusing such ultrasound arrays, but these often assume prior knowledge of the impulse response, or require extensive full-system simulations. LÄS MER

3. 2. The climate impact of fishways : A life cycle assessment of Blyberg’s and Spjutmo’s up- and downstream fishways

   Master-uppsats, Linköpings universitet/Industriell miljöteknik

   Författare :Ellen Lundin; Lovisa Liljenberg; [2023]
   Nyckelord :LCA; life cycle analysis; life cycle assessment; fishways; fish; fish migration; climate impact; technical fishways; co2 equivalents; co2 eq; hydro power; HPP; Sweden; construction; concrete; reinforcement steel;

   Sammanfattning : The Swedish national plan for reapproval of hydropower describes that hydropower plants (HPPs) are required to be reassessed to ensure that modern environmental conditions are set for the permits. Since dams and HPPs create barriers for migrating fish and consequently disfavor biological diversity, one consequence of the national plan is that fishways are being constructed. LÄS MER

4. 3. Low-power Acceleration of Convolutional Neural Networks using Near Memory Computing on a RISC-V SoC

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

   Författare :Kristoffer Westring; Linus Svensson; [2023]
   Nyckelord :FPGA; ASIC; Near Memory Computing; RISC-V; Convolutional Neural Network; Technology and Engineering;

   Sammanfattning : The recent peak in interest for artificial intelligence, partly fueled by language models such as ChatGPT, is pushing the demand for machine learning and data processing in everyday applications, such as self-driving cars, where low latency is crucial and typically achieved through edge computing. The vast amount of data processing required intensifies the existing performance bottleneck of the data movement. LÄS MER

5. 4. Optimal Control of An Energy Storage System Providing Fast Charging and Ancillary Services

   Master-uppsats, KTH/Optimeringslära och systemteori

   Författare :Max Völcker; Hugo Rolff; [2023]
   Nyckelord :Optimal Control; Model Predictive Control; Dynamic Programming; State-Space Representation; Monte Carlo Simulation; Frequency Regulation; Fast Charging; Energy Storage Systems; Net Present Value; Optimal styrteori; Modell-prediktiv reglering; Dynamisk programmering; Frekvensreglering; Snabbladdning; Energilager; Nuvärde;

   Sammanfattning : In this thesis, we explore the potential of financing a fast charging system with energy storage by delivering ancillary services from the energy storage in an optimal way. Specifically, a system delivering frequency regulation services FCR-D Up and FCR-D Down in combination with energy arbitrage trading is considered. LÄS MER

7. 5. Gröna tak

   Kandidat-uppsats, Lunds universitet/Avdelningen för Installations- och klimatiseringslära; Lunds universitet/Avdelningen för Byggnadsfysik; Lunds universitet/Institutionen för bygg- och miljöteknologi; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Busra Duran; Najma Habibullah; [2021]
   Nyckelord :Gröna tak; Ekosystemtjänst; Bjälklag med växtlighet; extensiv; intensiv; semi-intensiv.; Technology and Engineering;

   Sammanfattning : Den här studiens syfte var att skapa en bättre förståelse för varför man ska bygga mer med gröna tak samt att göra en jämförelse mellan gröna tak och bjälklag med växtlighet. Vi undersökte även gröna takets nytta som en ekosystemtjänst samt hur nyttan kan ökas. LÄS MER