Search for dissertations about: "hc"

Showing result 1 - 5 of 136 swedish dissertations containing the word hc.

  1. 1. The physiology of cross-country skiing : With special emphasis on the role of the upper body

    University dissertation from Karolinska institutet

    Author : HC Holmberg; GIH. Gymnastik- och idrottshögskolan; Karolinska Institutet.; Karolinska Institutet.; [2005]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicin Teknik; Medicine Technology; Arterial O2 saturation; blood flow; conductance; cross-country skiing; double poling; electromyography; ergometer; O2 extraction; force; lung; muscle adaptation; oxygen uptake; oxygen cost; pulmonary gas exchange; training; upper body;

    Abstract : Cross-country skiing has been of great interest for exercise physiologists during the last century and is regarded as one of the most demanding endurance sports. Of special interest is that the athletes have extraordinary high aerobic power and that both upper and lower body muscles are involved to various degrees in the different skiing techniques. READ MORE

  2. 2. Cryptanalysis of Selected Stream Ciphers

    University dissertation from Department of Electrical and Information Technology, Lund University

    Author : Paul Stankovski; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stream cipher; cryptanalysis; FCSR; state recovery; linear relations; optimal sampling; distinguisher; HC; nonrandomness; greedy bit set algorithm.;

    Abstract : Popular Abstract in Swedish Kryptering kan användas när man vill hålla något viktigt meddelande hemligt, till exempel vid en bankbetalning på Internet. Men hur vet man att krypteringsalgoritmen (sättet att kryptera på) är tillräckligt säker? Hur vet man att ingen kan läsa vårt meddelande eller ändra i det så att, till exempel, en överföring av pengar från ett konto till ett annat går till någon helt annan? Det är detta vi har kryptoanalys till, för att kontrollera att säkerhetskrav som ställs på krypteringsalgoritmen är uppfyllda. READ MORE

  3. 3. Experimental and kinetic studies of H2 effect on lean exhaust aftertreatment processes: HC-SCR and DOC

    University dissertation from Department of Electrical and Information Technology, Lund University

    Author : Muhammad Mufti Azis; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HC-SCR; NO oxidation.; Hydrogen effect; NOx reduction; Kinetic modeling; Silver Alumina; DOC; Platinum Alumina;

    Abstract : With a growing concern to lower greenhouse gas emissions from road transportation, lean burn and diesel engines will keep playing an important role in the future. Development of a highly efficient and durable process to reduce NOx to N2 becomes a challenging issue especially in the presence of ample O2 concentration as in lean burn exhaust. READ MORE

  4. 4. Studies of hydrocarbon-assisted selective catalytic reduction of nitrogen oxides - DME as reductant and reaction mechanism over silver/alumina

    University dissertation from Department of Electrical and Information Technology, Lund University

    Author : Stefanie Tamm; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ZSM-5; NCO; HC-SCR; Dimethyl ether; reaction mechanism; silver alumina;

    Abstract : Increasing amounts of carbon dioxide are attaining worldwide growing attention as one probable cause for global warming. Together with the expected peak in oil production and an increasing oil demand, this results in a greater interest in more fuel effective lean burn engines (i.e. operation with excess oxygen). READ MORE

  5. 5. Studies of the influence of ZSM-5 synthesis on activity and stability of Cu-ZSM-5 in leand NOx reduction

    University dissertation from Department of Electrical and Information Technology, Lund University

    Author : Malin Berggrund; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HC-SCR; Cu-ZSM-5; catalysis; propene; lean NOx reduction; hydrothermal stability;

    Abstract : The growing concern about the global warming coupled with the increasing emissions of the greenhouse gas carbon dioxide, combined with the climbing oil price, drives the interest to more fuel efficient lean combustion engines for automotive applications. Such engines require new technical solutions for reduction of NOx in the exhaust gases, which are in excess oxygen, where a conventional three-way catalyst cannot be used to reduce NOx. READ MORE