Essays about: "hydrogen cleaning"

Showing result 1 - 5 of 14 essays containing the words hydrogen cleaning.

  1. 1. Ion Induced Particle Desorption From Self Supporting Nanomembranes : Influence of Different Geometries and Particle Types

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Jonas Beling; [2023]
    Keywords : ion; physics; ion physic; scattering; desorption; sputtering; jon; fysik; jonfysik;

    Abstract : Nanoelectronics is a field undergoing rapid development, meaning knowledge of the materials and methods used in nano-scale systems is a driving force in the industry. Silicon is a well known material in nanoelectronics commonly used as a semiconductor and is therefore a good representative for nanomaterials in general. READ MORE

  3. 2. In-plane Wetting in Packaging Material and its Consequences for Cap Performance

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Ellinor Carolina Salomonsson; [2023]
    Keywords : Tetra Pak®; Aseptic; Paperboard; Pre-laminated hole; Edge wicking; In-plane wetting; Hydrogen peroxide; Cap detachment; Polymer technology; Technology and Engineering;

    Abstract : Aseptic packaging solutions enable long time storage without refrigeration and are an important part of securing food supply globally. The package material consists of multiple layers: A paperboard for robustness, polymers for adhesion as well as shielding the board from liquid, and a barrier protecting the product. READ MORE

  4. 3. Produktion av biofilm med MRSA, MRSP eller Campylobacter jejuni, samt hur olika desinfektionsmedel påverkar den

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Moa Therése Viklund; [2022]
    Keywords : biofilm; destruktion av biofilm; Campylobacter jejuni; stafylokocker; MRSA; MRSP; desinfektion; rengöring; peroxymonosulfat buffrade syror; perättiksyra; väteperoxid; hypoklorsyra; etanol;

    Abstract : I denna studie ingick såväl produktion av biofilm i en statisk modell med mikrotiterplattor där biofilmen fick växa ostört i 5 dagar i inkubationsskåp i 30 °C, samt en mer dynamisk modell. I den dynamiska modellen ingick vattenledningsrör där buljong och bakterier växt i inkubationsskåp i 30 °C i 5 dagar för att sedan stå i rumstemperatur i ytterligare 5 dagar med daglig skakning i en timme, samt att buljong byttes ut vid dag 5 och nya bakterier tillsattes dag 7. READ MORE

  5. 4. Ancient plant cuticle chemistry: preservation and characterization of organic matter as biomarker of past UV-B radiation

    University essay from KTH/Kemi

    Author : Larissa Lopes Cavalcante; [2021]
    Keywords : UACs; fossil cuticle; p-coumaric acid; ferulic acid; UV-B proxy; micro-FTIR; confocal Raman microscope; UAF; fossil kutikula; p-kumarinsyra; ferulinsyra; UV-B-proxy; mikro-FTIR; konfokalt Raman-mikroskop;

    Abstract : Biologiska processer hos olika organismer påverkas av ultraviolett-B-strålning (UV-B). Kunskapen om förändringar i UV-B-flödet som nått planetens yta under det geologiska tidsspann sedan flercelligt liv uppstod är dock begränsad. READ MORE

  6. 5. Small-scale biogas : A techno-economic comparison of Internal Combustion Engines, Micro Gas Turbines and Stirling Engines

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Emil Sund; [2020]
    Keywords : ;

    Abstract : Gas driven power generation is expected to increase in the near future due to significantly lesser environmental impact than oppose to conventional fuels like coal and oil. Today, Natural Gas (NG) is the dominant product on the market and biogas, which originates from degradable organic waste, has not reached its full market potential due to bottlenecks in utilization. READ MORE