Sökning: "Beam Searching"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Beam Searching.

1. 1. Validation of simulation with enhanced kaon production to investigate kaon background for LDMX

   Master-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

   Författare :Lisa Andersson Loman; [2023]
   Nyckelord :Dark matter; experimental physics; simulations; kaons; particle physics; LDMX; background studies; mörk materia; partikelfysik; kaoner; Physics and Astronomy;

   Sammanfattning : Dark matter is one of our universe’s largest mysteries and very little is known about what it is. One of the dominating theories, that it originates from an early universe thermal relic, indicates that it has interaction with the Standard Model. LÄS MER

3. 2. Investigation of a New Method for Drone Dazzling Using Laser

   Master-uppsats, Linköpings universitet/Reglerteknik

   Författare :Jens Grundmark; [2021]
   Nyckelord :Drone countermeasure; Risley prisms; Camera dazzling; Laser;

   Sammanfattning : Drones have become more common, and are commercially available for consumers. Small drones can be used for unauthorized information gathering, or to cause disruptions. This has created a need for safe, effective countermeasures against drones. In this thesis, a method for countermeasures against drone imaging is investigated. LÄS MER

4. 3. Test setup for LDMX HCal readout

   Kandidat-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

   Författare :Joshua Greaves; [2020]
   Nyckelord :Dark matter; LDMX; dark photon; hadronic calorimeter; photomultiplier tube; Physics and Astronomy;

   Sammanfattning : It is evident from cosmological observations such as the Cosmic Microwave Background, and the motion of galaxies, that the universe consists of approximately 5 times more mass than visible matter can account for. The Light Dark Matter eXperiment (LDMX) will take a unique approach in its hunt for dark matter; it will look for missing momentum signals in electron collisions with a Tungsten target, and will be looking in the sub GeV energy range for evidence of dark matter interactions. LÄS MER

5. 4. Beamforming Solutions for Efficient Link Setup and Link Maintenance in mmWave Communication Systems

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

   Författare :Hesham Sharkas; Haruhi Echigo; [2019]
   Nyckelord :5G; Beamforming; Beam-forming; Beam Management; Beam Searching; Beam Sweeping; Codebook; code-book; Initial Access; MIMO; MillimeterWave; millimeter wave; mmWave; mm-Wave; mm Wave; Precoding; Slepian Beam; Synthesizer; Beam Synthesizer; Technology and Engineering;

   Sammanfattning : Millimeter wave (mmWave band) technology has gained a lot of attention in 5G communications, due to large amounts of spectrum being available in the mmWave frequency range. However, mmWave links suffer from severe free-space loss and atmospheric absorption. LÄS MER

7. 5. Utvärdering av tätningskoncept för aktuator i motorrumsmiljö

   Kandidat-uppsats, Högskolan i Jönköping/JTH, Maskinteknik

   Författare :Matilda Frid; Malin Aronsson; [2016]
   Nyckelord :Sealing; gasket; encapsulation; laser welding; o-ring; static seal; dynamic seal; sealing design; Tätning; inkapsling; IP-klass; sammanfogning; lasersvetsning; o-ring; tätningskoncept;

   Sammanfattning : Examensarbetet har utförts på uppdrag av Kongsberg Automotive AB, en underleverantör inom fordonsindustrin som bland annat tillverkar växelspaksystem till både manuella och automatväxlade fordon. Fordonsbranschen kantas av ständig utveckling med innovativa lösningar, vilket under de senaste åren har resulterat i att elektroniken har fått en större roll i produkterna. LÄS MER