Essays about: "Zinc Oxide"

Showing result 16 - 20 of 47 essays containing the words Zinc Oxide.

  1. 16. Development of corrosion resistant coatings using natural biopolymer and pollen

    University essay from KTH/Materialvetenskap

    Author : Alessandro Armani; [2020]
    Keywords : ;

    Abstract : Corrosion is a mechanism that highly reduces the lifetime of metals in different environments, especially in water or moisture environment. The worldwide maintenance cost due to corrosion is estimated in billions of dollars per year, and actual solutions in terms of coating usually contains toxic or environmentally harmful species. READ MORE

  3. 17. A comparative study of ZnO i-layer deposited with ALD and PVD for CIGS solar cells

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Joel Johansson Byberg; [2019]
    Keywords : CIGS; ZnO; ZnMgO; solar cells; thin film; zinc oxide; window layer; ALD; PVD;

    Abstract : Two identified setbacks for CIGS based devices in order to obtain higher efficiency are parasitic absorption in the window layer structure and losses in open-circuit voltage due to bad interfaces. This study investigated how the performance of the solar cell is affected by depositing intrinsic ZnO (i-ZnO) and ZnMgO with atomic layer deposition (ALD) instead of the conventional sputtering. READ MORE

  4. 18. Evaluation of air entraining behaviour in concrete using computer aided methods on hardened samples

    University essay from KTH/Betongbyggnad

    Author : Jakub Pawlowicz; [2019]
    Keywords : concrete; air voids; air entraining; AEA; blast furnace slag; BFS; flat-bed scanner; BubbleCounter; traverse method;

    Abstract : Increasing awareness of sustainability in the concrete industry forces structural design and executionto focus on avoiding costly and unpredictable maintenance action, instead paying higher attention todamage prevention by direct actions on early stages of production. One of such approaches, whichdeals with the problem of freezing and thawing deterioration, is intentional air bubble introductionto the concrete mix. READ MORE

  5. 19. Exposure of zinc oxide nanoparticles on lung epithelium: A comparison between submerged and air-liquid interface cultures

    University essay from Lunds universitet/Ergonomi och aerosolteknologi

    Author : Julia Dobric; [2019]
    Keywords : lung toxicology; nanotoxicology; aerosol; air-liquid interface; ALI; NACIVT; nanoparticles; zinc oxide; Biology and Life Sciences;

    Abstract : Zinc oxide nanoparticles (ZnO NPs) are often used in sunscreen and other cosmetic products with sun protection. They are also candidate to be used for various biological applications such as drug delivery, or in material science in for example solar cells. READ MORE

  6. 20. Avvänjning utan medicinsk zinkoxid i hög dos och dess påverkan på tillväxtgrisens dödlighet, diarréförekomst, tillväxt och foderomvandlingsförmåga

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Thea Kristensson; [2018]
    Keywords : avvänjning; mag-tarm hälsa; medicinsk zink i hög dos; avvänjningsdiarré; tillväxt; dödlighet; foderomvandlingsförmåga;

    Abstract : Tilldelning av foder med inblandning av medicinsk zink i hög dos, 2500 mg Zn/kg foder, används av många grisproducenter i EU för att förebygga avvänjningsdiarré. Det kommande zinkförbudet som träder i kraft 2022 påverkar många smågrisprodu-center i EU och är en högt prioriterad fråga. READ MORE