Search for dissertations about: "light-weight"

Showing result 11 - 15 of 120 swedish dissertations containing the word light-weight.

  2. 11. Methods for the Evaluation of Wingsails with a Crescent-Shaped Profile

    Author : Heng Zhu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wind-assisted ship propulsion; rigid wingsail; light weight structure; crescent-shaped profile; wind-assisted ship propulsion.;

    Abstract : Seaborne transportation accounts for a large proportion of greenhouse gas (GHG) emissions. The International Maritime Organization (IMO) has stipulated that GHG emissions should be reduced by 50% before 2050 compared to 2018. The use of wind-assisted ship propulsion (WASP) is considered one of the most effective ways to reduce GHG emissions. READ MORE

  4. 12. Study of Paper Dry Strength Additives on Cellulose Fibres

    Author : Mengxiao Zhao; Torbjörn Pettersson; Lars Wågberg; Leif Robertsén; Tekla Tammelin; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Paper dry strength additives; adsorption of polymer; polyelectrolyte; birch fibres; model cellulose surface; cellulose beads; filaments; light-weight paper board; polyacrylamide; cationic starch; Torrstyrkekemikalier; polymeradsorption; polyelektrolyter; cellulosafibrer; modellcellulosaytor; cellulosakulor; lättviktsliner; polyakrylamid; katjonstärkelse; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Paper packaging is commonly found in the form of paper and cardboard boxes, but recently paper packing is being used in food packaging, trays, beverage packaging and even paper straws, among others. Paper strength additives have been developed to increase the efficiency of the joint strength and the joint areas and potentially maintain bulk in paper products. READ MORE

  5. 13. Node-Level Fault Tolerance for Embedded Real-Time Systems

    Author : Joakim Aidemark; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fault injection; error recovery; reliability calculations; time redundancy; real-time kernels; error detection; analytical coverage estimation; distributed real-time systems;

    Abstract : This thesis deals with cost-effective design and validation of fault tolerant distributed real-time systems. Such systems play an increasingly important role in embedded applications such as automotive and aerospace systems. READ MORE

  6. 14. Physical and psychosocial occupational strain

    Author : Gunvor Gard; Luleå tekniska universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiotherapy; Sjukgymnastik;

    Abstract : This monography thesis is based on five empirical studies of physical and psychosocial occupational strain in working life. The first three studies concern the working environment of crane couplers. READ MORE

  7. 15. Understanding Technical Debt and Assumption-Related Challenges in the Domain of Cyber-Physical Systems

    Author : Md Abdullah Al Mamun; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Technical Debt; Cyber-Physical Systems; Assumptions; Software Engineering;

    Abstract : In today's world software is contributing a substantial part of the new functionalities and innovations of the automotive industry. So the size and the complexity of the software is dramatically increasing with time, which comes with additional challenges, e.g., implicit assumptions or technical debt. READ MORE