Search for dissertations about: "speed ratio change"

Showing result 1 - 5 of 32 swedish dissertations containing the words speed ratio change.

  2. 1. On Rolling Variators, A study of power transmitting rolling variators when changing speed ratio

    Author : Göran Brännare; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction drives; traction drives; variators; traction; CVT; speed ratio change; rolling traction trnasmissions; continously variable transmissions; rolling contact drives; transmission ratio change;

    Abstract : The introduction of the concept Rolling Variators is proposed for rolling contact continuously variable transmission.A theoretical study of rolling variators when changing the speed ratio during power transmission is presented. READ MORE

  4. 2. Computer Vision Algorithms for Intelligent Transportation Systems Applications

    Author : Mohammad Saleh Javadi; Mattias Dahl; Mats Pettersson; Mikael Nilsson; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; computer vision; intelligent transportation systems ITS ; speed measurement; vehicle classification;

    Abstract : In recent years, Intelligent Transportation Systems (ITS) have emerged asan efficient way of enhancing traffic flow, safety and management. Thesegoals are realized by combining various technologies and analyzing the acquireddata from vehicles and roadways. READ MORE

  5. 3. Blood pressure in very old age : determinants, adverse outcomes, and heterogeneity

    Author : Bodil Weidung; Yngve Gustafson; Håkan Littbrand; Bo Carlberg; Peter Nordström; Sölve Elmståhl; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood pressure; aged 80 and over; hypertension; hypotension; mortality; stroke; gait speed; cognition disorders; dementia; cohort study;

    Abstract : Background: High blood pressure (BP) is the leading risk factor for disease and mortality worldwide. However, risks associated with high BP in very old age (≥ 80 or ≥ 85 years) are not entirely understood, as the majority of scientific studies have been performed with younger populations and existing scientific knowledge about very old individuals is sometimes contradictory. READ MORE

  6. 4. Laser-Based Investigations of Combustion Phenomena in Gas Turbine Related Burners

    Author : Arman Subash; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Combustion; Gas turbine; Chemiluminescence; laser-based techniques; LIF; PIV; DLE; TARS; CH4; H2; OH; CH20; Equivalence ratio; flame stabilization; LBO; Flashback; RPL; Fysicumarkivet A:2018:Subash;

    Abstract : Experiments were performed on various combustion devices to investigate the flames employing different optical measurement techniques under atmospheric pressure conditions. Non-intrusive laser-based techniques provided in-situ information concerning different parameters of the combustion process, with a high degree of temporal and spatial resolution. READ MORE

  7. 5. Revisiting the urban block in the light of climate change : A case study of Budapest

    Author : Csilla V Gál; Peter Land; []
    Keywords : HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Since the beginning of the twentieth century, the urban block configuration of free-standing buildings has been deemed superior to other built forms, as it provided the necessities of modern healthy living: sunlight and fresh air. In light of climate change, the dissertation aims to reevaluate these long held beliefs and to reintroduce microclimate as an urban design consideration. READ MORE