Essays about: "Hjälm"

Showing result 1 - 5 of 11 essays containing the word Hjälm.

  1. 1. The Secret Trade : Booksellers, advertisement and sexually transmitted diseases in eighteenth-century London

    University essay from Stockholms universitet/Historiska institutionen

    Author : Makrina Hjälm Ellnemyr; [2023]
    Keywords : Eighteenth century; London; England; medicine; booksellers; book trade; trade; syphilis; sexuality; advertisement; disease; history; trade card; bill head; Historia; 1700-tal; handel; bokhandlare; London; England; medicin; sexualitet;

    Abstract : This thesis examines the relationship between booksellers, medicine for sexually transmitted diseases, and advertising in eighteenth-century London. The analysis is based on trade cards, prints and advertisement in newspapers and periodicals. READ MORE

  3. 2. Evaluation of Coefficient of Friction in Oblique Helmet Impacts: An Experimental and Numerical Study

    University essay from KTH/Hållfasthetslära

    Author : Philip Singh; [2022]
    Keywords : FE model; friction; helmet impact; LS-DYNA; FE-modell; friktion; hjälmislag; LS-DYNA;

    Abstract : The focus of this thesis was to increase the knowledge in the area of "dynamic friction" during oblique helmet impacts, both experimentally and numerically. Physical experiments have been performed with multiple helmets, different angles of the anvil and different surface materials, with results of impact forces from the anvil and accelerations of the head. READ MORE

  4. 3. A new ETF Landscape and its Relationship to the Volatility of its Underlying Assets - An empirical study of the S&P 500

    University essay from Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Author : Andreas Hjälm; Felix Lindahl; [2022]
    Keywords : ETF; Volatility; Arbitrage; Shock Propagation; Index Investing;

    Abstract : The global market for exchange traded funds (ETFs) has during the last decade sustained substantial growth. A global increase of AUM from ~400 billion USD in 2005 to above 7.7 trillion USD in 2020 has brought with it a changed landscape. READ MORE

  5. 4. Fatigue testing machine : To simulate daily use on multi-directional impact protection systems in helmets

    University essay from KTH/Hållbar produktionsutveckling (ML)

    Author : Mathias Nyman; Susanna Johansson; [2021]
    Keywords : Fatigue testing machine; Technical Design; Product development; Product testing; Robotics; Utmattningsmaskin; Teknisk design; Produktutveckling; Produkttester; Robotik;

    Abstract : During the development process of a product, tests are typically conducted to ensure the quality of the features of the product before it is made available to the public. The scope of this project was to find a realistic and reliable way to test components in a Multi-Directional Impact Protection System (MIPS) in fully mounted helmets. READ MORE

  6. 5. Analysis and reconstruction of head kinematics during accidents in fast alpine skiing disciplines : Experimental research about the accuracy and drawbacks associated with a video analysis tool

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Nicolo Dall'Acqua; [2021]
    Keywords : Alpine Skiing; Helmet; Impacts; Kinematics; Safety; TBI; Alpin skidåkning; Hjälm; Kollisioner; Kinematik; Säkerhet; TBI;

    Abstract : Head injuries caused by impacts are among the most critical and dangerous types of accidents that can occur while practising sports. Alpine skiing is one of the activities with the highest incidence of head injuries. READ MORE