Sökning: "load factor"

Visar resultat 1 - 5 av 348 avhandlingar innehållade orden load factor.

  1. 1. Towards environmentally sustainable freight transport: shippers' logistics actions to improve load factor performance

    Författare :Vendela Santén; Chalmers tekniska högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sustainability; systems approach; shipper; logistics activities; links; performance; load factor; freight transport; environment; actions;

    Sammanfattning : The purpose of this thesis is to explain how shippers’ logistics actions contribute to environmentally sustainable freight transport, by clarifying the link between logistics activities and the resulting load factor performance. Five studies have been undertaken, which have given rise to six papers. LÄS MER

  3. 2. New aspects of physical work load as a risk factor for musculoskeletal disorders

    Författare :Marketta Häkkänen; Göteborgs universitet; []
    Nyckelord :musculoskeletal disorder; upper limb; neck; shoulder; low back; physical work load; risk factor; job experience; trigger; interview; intervention; exposure assessment;

    Sammanfattning : ABSTRACT This study investigated new aspects of physical load factors as risk factors for musculoskeletal disorders among industrial employees. The following issues were in focus: the effect of physical work load and job experience on morbidity from musculoskeletal disorders, the incidence rates and induction times for these disorders, and the triggering factors for incident low back pain. LÄS MER

  4. 3. Dynamic Load Models for Power Systems - Estimation of Time-Varying Parameters During Normal Operation

    Författare :Ines Romero; Industriell elektroteknik och automation; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage stability; Load modeling; modeling and identification; dynamic load models; normalization in reactive load models;

    Sammanfattning : Economic and environmental concerns will slow down the expansion of the transmission system in many countries. The addition of new transmission lines will be few and far between. The de-regulation of the power supply will introduce new power flow patterns on the bulk transmission systems. LÄS MER

  5. 4. The morselized and impacted bone graft. Animal experiments on proteins, impaction and load

    Författare :Magnus Tägil; Lund Ortopedi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; traumatology; orthopaedics; Surgery; load; growth factors; graft healing; remodeling; allograft; Impaction grafting; morselized graft; Kirurgi; ortopedi; traumatologi; Immunology; serology; transplantation; Immunologi; serologi;

    Sammanfattning : This thesis focuses on the healing and remodeling of the morselized and impacted bone allograft, commonly used in revision of loosened hip prostheses with osteolysis. The influence on remodeling by the impaction procedure per se was analyzed, as well as the effects of endogenous bone graft proteins, and an exogenously applied growth factor (OP-1). LÄS MER

  7. 5. Human Papillomavirus Load and Cervical Carcinoma

    Författare :Martin Moberg; Ulf Gyllensten; Björn Hagmar; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; cervical cancer; human papillomavirus; viral load; HLA class II; Molekylärbiologi; Molecular biology; Molekylärbiologi;

    Sammanfattning : Human Papillomavirus (HPV) is a key factor in the development of cervical cancer. Out of the more than 100 known HPV types 13 are considered oncogenic. In addition to presence of the virus several other factors have been proposed to influence risk of cervical cancer. LÄS MER