Essays about: "Val"

Showing result 21 - 25 of 1399 essays containing the word Val.

  1. 21. Benchmarking a 1 kW hybrid hydrogen fuel cell system

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Jonathan Envall; [2023]
    Keywords : PEMFC; fuel cell; UAV; hybrid; Technology and Engineering;

    Abstract : Unmanned Aerial Vehicles (UAV's) offer great versatility in the tasks that they may perform and they are today used in many sectors. The H24LEO project, administered by the Lund University School of Aviation, aims to develop and demonstrate a hybrid proton-exchange membrane fuel cell-powered UAV to aid in search and rescue operations performed by the Swedish Maritime Administration, and reduce the greenhouse gas emissions compared to similar work performed by helicopters. READ MORE

  2. 22. CSR communication and the use of recycled synthetic fibres in the fashion industry: A content analysis study of two Swedish fashion brands

    University essay from Lunds universitet/Miljövetenskaplig utbildning; Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Author : Linn Löfling; [2023]
    Keywords : recycled synthetic fibres; fast fashion; slow fashion; CSR communication; Earth and Environmental Sciences;

    Abstract : The fashion industry is one of the largest contributors to environmental issues and has a significant part of plastic production due to the use of synthetic fibres. Much scientific research indicates that the fast fashion model is a significant part of using synthetic fibres; however, slow fashion brands are also using the fibres. READ MORE

  3. 23. Predicting user churn using temporal information : Early detection of churning users with machine learning using log-level data from a MedTech application

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

    Author : Love Marcus; [2023]
    Keywords : User churn; Customer attrition; Artificial neural networks; Log-level analysis; Random forests; Decision trees; Användarbortfall; Kundbortfall; Artificiella neurala nätverk; logganalys; Slumpskogar; Beslutsträd;

    Abstract : User retention is a critical aspect of any business or service. Churn is the continuous loss of active users. A low churn rate enables companies to focus more resources on providing better services in contrast to recruiting new users. READ MORE

  4. 24. Development of a web application with focus on navigability : How is the usability on a web application for E-commerce of plants and cuttings affected by its navigability?

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Johan Christiansson; Silje Graarud; Lovisa Ivarsson; Torsten Liljedahl; Klara Nylén; Selma Renqvist; Olof Swedberg; Philip Wissinger; [2023]
    Keywords : navigability; usability; web application;

    Abstract : The purpose of this project was to determine how the experienced navigability of a web application affects its usability. In order to further investigate this, a web application called Sprouty was created, an easy-to-use web application that promotes individuals to buy and sell pre-owned plants and cuttings. READ MORE

  5. 25. Spin-Glass Behaviour in Ordered Solids

    University essay from Uppsala universitet/Materialteori

    Author : Erik Karpelin; [2023]
    Keywords : spin-glass; self-induced; variation; Edwards-Andersson; glassy;

    Abstract : The spin-glass is a peculiar magnetic phase, exhibiting non-trivial dynamics at low temperatures, characterized by an continuously evolving state without long-range order. The behavior requires some degree of disorder to occur, often in the way of impurities or random exchange energy between the spins. READ MORE