Essays about: "blue light"

Showing result 21 - 25 of 91 essays containing the words blue light.

  1. 21. Using blue light reflectance from high-resolution images (6000 dpi) of Scots pine tree rings to reconstruct three centuries of Scottish summer temperatures

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Alice De Schutter; Karin Markendahl; [2021]
    Keywords : summer temperature reconstruction; climate change; Scotland; Scots pines; ultra-high image resolution; blue intensity; rekonstruktion av sommartemperatur; klimatförändringar; Skottland; skotska tallar; hög bildupplösning; blå intensitet;

    Abstract : Advances in scanner technology have made it possible to obtain high resolution (6000 dpi) images of tree samples. Due to the images’ increased capability of resolving anatomical wood structures, the new technology could be of benefit to dendroclimatology.  This study attempts to expand on Rydval et al. READ MORE

  3. 22. Gasket Quality Control

    University essay from Lunds universitet/Industriell Produktion

    Author : Chinthan Rai; Shashank Bhanuprakash; [2021]
    Keywords : Quality-control; Gasketed plate heat exchangers GPHE ; Cross-section measurement; Laser line triangulation LLT ; Blue laser; Handheld 3D scanning; MCDM; AHP.; Technology and Engineering;

    Abstract : The heat exchanger is a system where heat gets transferred between oil and other forms of lubricants from one system to another without mixing through conduction. The hot liquid is cooled by passing through the heat exchangers plates, which act as a wall between them. READ MORE

  4. 23. Raman spectroscopy in neurosurgery

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Saga Bergqvist; [2020]
    Keywords : Raman spectroscopy; brain tumor; diagnosis;

    Abstract : Brain tumors or brain cancer is a disease than affects people of all ages. The median age of a person living with a brain tumor is 60 years, it is however a disease that affects children and young adults in high grade. READ MORE

  5. 24. Thermal induced yellowing of peroxide bleached birch pulp

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Alexander Nygren; [2020]
    Keywords : Accelerated ageing; Bleaching; Brightness reversion; Kraft pulp; pH; Yellowing;

    Abstract : Brightness reversion, also known as yellowing, is a well-known phenomenon which means that the brightness of paper products decreases during ageing. The name of this phenomenon is based on that paper products usually change in color towards yellow during ageing. READ MORE

  6. 25. Enhancing the degradation rate of microplastics and organizing a study visit about sustainability

    University essay from KTH/Lärande

    Author : Marianne Al-Ghorabi; [2020]
    Keywords : Accommodation; assimilation; Fenton reaction; microplastics; polypropylene; polystyrene; proximal development zone; study visit; visible light photocatalysis; zinc oxide nanorods; Ackommodation; assimilation; den proximala utvecklingszonen; Fenton reaktion; fotokatalys med synligt ljus; mikroplast; polypropalen; polystyren; studiebesök; zinkoxid nanorör.;

    Abstract : Microplastics take hundreds to thousands of years to degrade in nature, and pose a threat to the environment. A photocatalytical degradation method have been developed to take advantage of solar light to degrade microplastics, however it takes several months to degrade microplastics with the process. READ MORE