Sökning: "surface defect"

Visar resultat 1 - 5 av 52 uppsatser innehållade orden surface defect.

  1. 1. Implicit Message Integrity Provision : In Heterogeneous Vehicular Systems

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

    Författare :Paul Molloy; [2023]
    Nyckelord :Privacy; Code Generation; Vehicle-to-infrastructure; Vehicular ad hoc Networks; Standardization; Remote Procedure Calls; Safety; Integritet; Kodgenerering; Fordon-till-infrastruktur; Ad hoc-nät för Fordon; Standardisering; Samtal om fjärrprocedur; Säkerhet;

    Sammanfattning : Vehicles on the road today are complex multi-node computer networks. Security has always been a critical issue in the automotive computing industry. It is becoming even more crucial with the advent of autonomous vehicles and driver assistant technology. There is potential for attackers to control vehicles maliciously. LÄS MER

  3. 2. Data Augmentations for Improving Vision-Based Damage Detection : in Land Transport Infrastructure

    Master-uppsats, KTH/Lantmäteri – fastighetsvetenskap och geodesi

    Författare :Punnawat Siripatthiti; [2023]
    Nyckelord :Computer Vision; Data Augmentation; Object Detection; Crack Detection; Road Damage Detection; Sleeper Defect Detection; datorseende; dataökning; objektdetektering; sprickdetektering; vägbeläggning; järnvägsslipers;

    Sammanfattning : Crack, a typical term most people know, is a common form of distress or damage in road pavements and railway sleepers. It poses significant challenges to their structural integrity, safety, and longevity. Over the years, researchers have developed various data-driven technologies for image-based crack detection in road and sleeper applications. LÄS MER

  4. 3. Skadebild och fördelning av törskate på träd- och beståndsnivå hos tallungskog

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Moa Kinnunen; Björn Jönsson; [2022]
    Nyckelord :Törskate; Törskaterost; Svampskador; Rostsvamp; Multiskadad ungskog; Skadebild av törskate; Cronartium pini; Cronartium flaccidum; Peridermum pini; Resin-top disease; Rust fungi; Scots pine bister rust; Two-needle pine stem rust; Pine rust;

    Sammanfattning : Törskate är ett alltmer uppmärksammat problem i framförallt Sveriges norra delar, där 12 till 15 % av de naturliga avgångarna av tall anses orsakade av svampen. Detta motsvarar en produktionsförlust på ca 350 000 kubikmeter talltimmer årligen. LÄS MER

  5. 4. Defect classification in LPBF images using semi-supervised learning

    Master-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013); Karlstads universitet/Avdelningen för datavetenskap

    Författare :Anton Göransson; [2022]
    Nyckelord :Additive manufacturing; Laser powder bed fusion; Machine learning; Siamese neural networks; Deep learning; Defect classification;

    Sammanfattning : Laser powder bed fusion is an additive manufacturing technique that is capable of building metallic parts by spreading many layers of metal powder over a build surface and using a laser to melt specific sections of the surface. The part is built by melting consecutive layers on top of each other until the design is completed. LÄS MER

  7. 5. A molecular dynamics study on the influence of defects on tungsten material properties

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Mekanik

    Författare :Allan Fredriksson; [2022]
    Nyckelord :Molecular dynamics; Technology and Engineering;

    Sammanfattning : This masters thesis work has been carried out at the divisions of mechanics at Lund university. The purpose has been to find out more about tungsten and how its material properties are affected by crystal structure defects. LÄS MER