Essays about: "carriers in it"

Showing result 21 - 25 of 229 essays containing the words carriers in it.

  1. 21. Urban Planning for Better Air Quality : A case study of the Low-Traffic Neighbourhoods in London

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Greta Gustafsson; [2022]
    Keywords : Low-Traffic Neighbourhoods; London; Green Infrastructure; Urban Planning; Air Pollution;

    Abstract : Air pollution affects the environment negatively, boosts climate change, and is the cause of millions of deaths per year, first and foremost affecting the people living in urban areas. Since the early 20th century, many cities have been planned around cars, which are the main contributors to the bad air quality. READ MORE

  3. 22. Organic Solar Cell Fabrication and Study on the Influence of Spin-dependent Processes on the Photocurrent using Spin-sensitive Techniques

    University essay from Uppsala universitet/Fasta tillståndets fysik

    Author : Ronja Olsmats Baumeister; Evelina Roxner; [2022]
    Keywords : EDMR; EPR; trEDMR; PEDOT:PSS; PCBM; P3HT; organic solar cells; osc; opv;

    Abstract : Research in recent years on novel materials in organic solar cells (OSCs) have contributed to a rapid advancement in OSC efficiency. Here, OSCs with the well-studied organic semiconductors poly(3-hexylthiophene):[6,6]-phenyl C60-butyric acid methylester (P3HT:PCBM) in a bulk heterojunction structure were prepared to establish a baseline procedure for fabrication and spin-sensitive spectroscopy. READ MORE

  4. 23. Thermoelectric measurements on InAs nanowires with a ratchet-barrier

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Hanna Lundström; [2022]
    Keywords : Physics and Astronomy;

    Abstract : Efficient extraction of thermal energy from electrons at the micro- and nanoscale is a long-standing scientific goal that could enable novel types of heat engines, heat management, and solar cell applications. Semiconductor nanowires are a promising system for investigating such devices for several reasons, such as their thermoelectric properties, and the potential to be grown in heterostructures with high flexibility. READ MORE

  5. 24. Deep Learning for Predicting Electrical Power in 5G

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Robert Mellberg; [2022]
    Keywords : 5G; Deep learning; Machine learning; Predictions; Electrical power; 5G; Djupinlärning; Maskininlärning; Förutsägelser; Elektrisk effekt;

    Abstract : 5G is currently being implemented around the world. A way to save resources in 5G could be to have several sector carriers sharing one power source. This requires being able to predict the electrical power of the sector carriers to make sure they do not exceed the capability of the power source. READ MORE

  6. 25. Minimizing the expected opportunity loss by optimizing the ordering of shipping methods in e-Commerce using Machine Learning

    University essay from KTH/Matematik (Avd.)

    Author : Jonatan Ay; Jamil Azrak; [2022]
    Keywords : statistics; machine learning; applied mathematics; e-commerce; statistik; maskininlärning; tillämpad matematisk statistik; e-handel;

    Abstract : The shopping industry is rapidly changing as the technology is advancing. This is especially true for the online industry where consumers are nowadays able to to shop much of what the need over the internet. READ MORE