Essays about: "UV light"
Showing result 1 - 5 of 115 essays containing the words UV light.
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1. Ventilation for reduced indoor spread of Covid 19 and similar diseases : A literature review focusing on hospital environments
University essay from Högskolan i Gävle/Energisystem och byggnadsteknikAbstract : Today, a significant portion of individuals’ time is spent indoors, estimated at approximately 90% of their total time. This raises concerns about the transmission of Coronavirus Disease 2019 (COVID-19) instigating Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and similar viruses and highlights the critical role of ventilation systems in indoor environments, which this study aims to investigate. READ MORE
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2. Risk assessment of non-intentionally added substances in polyester yarn made from recycled polyethylene terephthalate (PET)
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : Polyester is a synthetic material made from polyethylene terephthalate (PET), which is synthesised from fossil raw materials. Many clothing manufacturers are using polyester in their clothing, which, from an environmental perspective, creates a non-sustainable cycle. READ MORE
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3. Visualization, modeling and consequences of residual stresses in glass frit sealing of a UV light source
University essay from Uppsala universitet/MikrosystemteknikAbstract : PureFize Technologies AB develops and manufactures a broadband ultraviolet (UVC) light technology device that is mercury-free and based on nanotechnology, using the principle of field emission. The light source is made of Ti and glass, which are hermetically bonded, using a low-temperature glass frit, at elevated temperatures. READ MORE
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4. Evaluation of antioxidant effect of an algae extract on skin: in vitro study
University essay from Malmö universitet/Institutionen för biomedicinsk vetenskap (BMV)Abstract : Algae extracts are used as cosmetic products and used as additives in specific foods because of their antioxidant activity. Reactive oxygen species (ROS) such as hydrogen peroxide and superoxide radicals are toxic on the skin and can be scavenged by antioxidants, which are abundant in microalgae. READ MORE
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5. Processing techniques of perovskite solar cells : Properties depending on material and manufacturing
University essay from Uppsala universitet/Fysikalisk kemiAbstract : This project investigates how different types of perovskite solar cells, differentiated by choice of materials and processing techniques, compares to each other regarding performance and characterization. The purpose of the project is to further develop perovskite solar cells and to improve the method of manufacturing for better performance. READ MORE