Sökning: "Wall effects"

Visar resultat 1 - 5 av 416 avhandlingar innehållade orden Wall effects.

  1. 1. Simulation-Driven Design of Complex Mechanical and Mechatronic Systems

    Författare :Johan Wall; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Exhaust system; Experimentation; Machine tools; Mechatronics; Optimisation; Product development; Prototyping; Simulation; Structural dynamics;

    Sammanfattning : Effective and efficient product development is critical to business success on the increasingly competitive global market, and simulation has proven to support this in many sectors. The aim of this thesis is to study how properties of complex mechanical and mechatronic systems can be more efficiently and systematically predicted, described, assessed and improved in product development. LÄS MER

  2. 2. Feasibility and efficacy of incorporating an exoskeleton in gait training during subacute stroke rehabilitation

    Författare :Anneli Wall; Karolinska Institutet; Karolinska Institutet; []

    Sammanfattning : Introduction: Hemiparesis is the most common acute manifestation of stroke and often has a strong negative impact on walking ability leaving one third of patients dependent in walking activities outside one’s home. Improved methods for training of gait during stroke rehabilitation could tackle the challenge of achieving independent walking and promote better outcomes. LÄS MER

  3. 3. Numerical Studies of Wall Effects of Laminar Flames

    Författare :Johan Andrae; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; wall effects; laminar premixed flames; Chemkin; boundary layer flow; Chemical engineering; Kemiteknik;

    Sammanfattning : Numerical simulations have been done with the CHEMKINsoftware to study different aspects of wall effects in thecombustion of lean, laminar and premixed flames in anaxisymmetric boundary-layer flow. The importance of the chemical wall effects compared to thethermal wall effects caused by the development of the thermaland velocity boundary layer has been investigated in thereaction zone by using different wall boundary conditions, walltemperatures and fuel/air ratios. LÄS MER

  4. 4. Protected Attractions : Tourism and Wilderness in the Swedish Mountain Region

    Författare :Sandra Wall Reinius; Gunnel Forsberg; Peter Fredman; Annika Dahlberg; Jarkko Saarinen; Mittuniversitetet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Turism; turismforskning; Human geography; Kulturgeografi; Landscape value and perception; nature conservation policy; tourist behavior; tourist attraction; infrastructure; visitor survey; nature-culture dichotomy; Laponian World Heritage Area; Sweden; Human Geography; kulturgeografi;

    Sammanfattning : Europe’s first national parks were established in northern Sweden in 1909 and this region has thus functioned as a protected and aesthetic pleasure landscape for a century. In 1996, due to the combination of spectacular natural environment and ancient Sami traditions the Laponian World Heritage Area was established here. LÄS MER

  5. 5. Understanding and managing cardiovascular disease risk factors in Vietnam : integrating clinical and public health perspectives

    Författare :Quang Ngoc Nguyen; Peter Byass; Lan-Viet Nguyen; Stig Wall; Lars Weinehall; Ruth Bonita; Göran Bondjers; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cardiovascular disease risk factors; epidemiology; prevention; hypertension; Vietnam; yếu tố nguy cơ bệnh tim mạch; dịch tễ học; dự phòng; tăng huyết áp; Việt Nam; Cardiology; kardiologi;

    Sammanfattning : Background: Vietnam, like other low-income countries, is facing an epidemic burden of cardiovascular disease risk factors (CVDRFs). The magnitude and directions of CVDRF progression are matters of uncertainty. LÄS MER