Sökning: "gear changing"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden gear changing.

  1. 1. Urban driving patterns - characterisation, variability and environmental implications

    Författare :Eva Ericsson; Trafik och väg; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Samhällsvetenskaper; Social sciences; Teknik; Technological sciences; speed limit; intersection density; driver age; gender; car performance; GPS; traffic flow; street environment; fuel consumption; deceleration; speed; acceleration; power demand; gear changing; exhaust emission;

    Sammanfattning : Driving patterns, i.e. the speed and acceleration profiles of vehicles affect exhaust emission and fuel consumption considerably. LÄS MER

  3. 2. Patterns of small-scale coastal fisheries and local fisheries management in Tanzania : adaptation to a changing climate

    Författare :Mathew Ogalo Silas; Martin Gullström; Hans W. Linderholm; Mattias Sköld; Patrick Polte; Christina Hicks; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Small-scale fisheries; tropical coastal seascape; nearshore-offshore linkages; coastal ecosystems; fish catch landings; communities; adaptation; climate change; fishing overfishing; Marine Ecotoxicology; marin ekotoxikologi;

    Sammanfattning : Coastal habitats like mangroves, seagrass meadows, coral reefs, and adjacent offshore waters constitute an important part of the tropical coastal seascape. They provide conducive environmental conditions for fish and other marine animals, which serve as food and income for coastal communities around the world. LÄS MER

  4. 3. Noble Crayfish (Astacus astacus) in a Changing World : Implications for Management

    Författare :Jenny K. M. Zimmerman; Thomas Palo; Nils Ekelund; Jostein Skurdal; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Noble crayfish Astacus astacus ; CPUE; climate change; water regulation; body growth; reintroduction; sustainable fishing; monitoring.;

    Sammanfattning : The noble crayfish (Astacus astacus) is critically endangered in Sweden. This is mainly due to the crayfish plague (Aphanomyces astaci), a lethal disease that, among other things, can be spread through the stocking of fish from contaminated water or contaminated fishing gear. LÄS MER

  5. 4. An approach for systematic process planning of gear transmission parts

    Författare :Mats Bagge; Bengt Lindberg; Maguns Wiktorsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; process planning; machining; gears; beredning; bearbetning; kugg; Manufacturing engineering; Produktionsteknik;

    Sammanfattning : The objective of this thesis is to find and develop methods that enhance and support the creation of evolvable master process plans with possibilities to challenge productivity and meet changing design requirements. The condition for achieving this is primarily that both the fundamental thinking and the results behind a process plan can be described. LÄS MER

  7. 5. Modelling and optimization of gear shifting mechanism, Application to heavy vehicles transmission systems

    Författare :Muhammad Irfan; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pareto optimization; synchronization; constraint Lagrangian formalism; sensitivity analysis; Generic synchronizer;

    Sammanfattning : Without an efficient transmission system the idea of an efficient vehicle is incomplete. During running of the vehicle especially in case of heavy vehicles the transmission system has to face different situations during which the system possibly can lose its efficiency. LÄS MER