Sökning: "gray scale"

Visar resultat 11 - 15 av 21 avhandlingar innehållade orden gray scale.

1. 11. Enhancing the Smoothness of Streaming Video for Mobile Users over Unreliable Networks

   Författare :Hussein Muzahim Aziz; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Real time video streaming over wireless network is an increasingly important and attractive service to the mobile users. Video streaming involves a large amount of data to be transmitted in real time, while wireless channel conditions may vary from time to time. LÄS MER

3. 12. Online optical method for real-time surface measurement using line-of-light triangulation

   Författare :Mohammad Anzar Alam; Mattias O'Nils; Jan Thim; Anatoliy Manuilskiy; Mittuniversitetet; []
   Nyckelord :;

   Sammanfattning : Real time paper surface-web measurement is one of the challenging research fields. The traditional laboratory method has many limitations and is unable to measure the entire tambour during the manufacturing process. It has been necessary to develop an online technique that could measure the surface topography in real time. LÄS MER

4. 13. Earth Observation based Monitoring of Urbanizationand Environmental Impact in Kigali, Rwanda

   Författare :Theodomir Mugiraneza; Yifang Ban; Jan Haas; Emmanuel Twarabamenye; Constantinos Cartalis; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth observation; Landsat; Sentinel-2; WorldView-2; Urbanization; Land cover classification; Support vector machines; Random forest; U-Net; LandTrendr; Landscape metrics; Ecosystem services; Environmental impact analysis; Kigali; Rwanda; Jordobservation; Landsat; Sentinel-2 MSI; WorldView-2; Urbanisering; Klassificering av marktäcke; Stödvektormaskiner; Slumpmässig skog; U-Net; LandTrendr; Landskapsmetriker; Ekosystemtjänster; Miljökon- sekvensanalys; Kigali; Rwanda.; Geoinformatics; Geoinformatik;

   Sammanfattning : Urbanization is one of the great challenges in the 21st century. Despite being an engine for the global economy, urban areas consume 78% of World's energy and emit more than 60% of greenhouse gas emission. Sub-SaharanAfrican cities, e.g. LÄS MER

5. 14. Imaging Living Cells with an X-ray Laser

   Författare :Gijs van der Schot; Tomas Ekeberg; Janos Hajdu; Filipe Maia; Pierre Thibault; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Coherent diffractive X-ray imaging; flash X-ray imaging; lensless imaging; single particle imaging; cyanobacteria; phasing; image classification; substrate-free sample delivery; X-ray free-electron laser; XFEL; FEL; CDXI; CDI; CXI; FXI; Chemistry with specialization in Biophysics; Kemi med inriktning mot biofysik;

   Sammanfattning : Imaging living cells at a resolution higher than the resolution of optical microscopy is a significant challenge. Fluorescence microscopy can achieve a degree of super-resolution via labeling cellular components with a fluorescent dye. LÄS MER

7. 15. Postpartum Ultrasound

   Författare :Ajlana Mulic-Lutvica; Ove Axelsson; Karin Eurenius; Torvid Kiserud; Uppsala universitet; []
   Nyckelord :Medicine; Postpartum ultrasound; Uterine artery Doppler; Retained placental tissue; Secondary postpartum hemorrhage; Puerperium; Endometritis postpartum; Cesarean section; Medicin;

   Sammanfattning : This study was undertaken to investigate the involutional changes of the uterus and uterine cavity by ultrasound (US), gray-scale and Doppler, after normal delivery, and to compare with the corresponding findings from women with puerperal complications, particularly retained placental tissue (RPT). The overall design was exploratory and prospective, with the use of descriptive statistics for analysis. LÄS MER