Sökning: "Load factor"

Visar resultat 6 - 10 av 348 avhandlingar innehållade orden Load factor.

  1. 6. Methods to assess physical load at work : With a focus on the neck and upper extremities

    Författare :Peter Palm; Mikael Forsman; Magnus Svartengren; Svend Erik Mathiassen; Eva Vingård; Esa Pekka Takala; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; risk assessment; physical load; upper extremities; ergonomics; Occupational and Environmental Medicine; Arbets- och miljömedicin;

    Sammanfattning : To prevent work-related musculoskeletal disorders (MSDs), useful, reliable and valid methods for assessing physical workload and risks for MSDs are needed. Ergonomists often assess work by short visual observations without a specific tool. LÄS MER

  3. 7. SiC Varactors for Dynamic Load Modulation of Microwave Power Amplifiers

    Författare :Christer Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear characterization; varactors; active load-pull; power; microwave; amplifier; dynamic load modulation; SiC; energy efficiency;

    Sammanfattning : The rapid consumer adoption of mobile services is leading to an exponential growth in wireless data traffic. In order to accommodate more concurrent high data-rate users, the required complexity of transmitting radio base station (RBS) power amplifiers (PAs) is increasing. LÄS MER

  4. 8. Analysis of traffic load effects an railway bridges

    Författare :Gerard James; KTH; []
    Nyckelord :bridge; rail; traffic load. Load effect. Dynamic amplification factor; extreme value theor; peaks-over-threshold;

    Sammanfattning : The work presented in this thesis studies the load and loadeffects of traffic loads on railway bridges. The increasedknowledge of the traffic loads, simulated using fieldmeasurements of actual trains, are employed in a reliabilityanalysis in an attempt at upgrading existing railwaybridges. LÄS MER

  5. 9. Environmental concerns when purchasing freight transport

    Författare :Sara Rogerson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Load factor; Freight transport; Coordination; Shipper; Green logistics; Purchasing process;

    Sammanfattning : Companies that purchase freight transport (shippers) influence the conditions for how transport providers can execute the transport, which in turn influences CO2 emissions. The conditions can be influenced both by shippers’ purchasing processes for freight transport and when shippers prepare goods for delivery. LÄS MER

  7. 10. Exploring logistics actions enabling environmentally sustainable freight transport

    Författare :Vendela Santén; 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; co-operation; freight transport; actions; load factor; logistics; actors’ perspectives; sustainability; environment;

    Sammanfattning : To curb unsustainable freight transport trends; such as transport growth, larger dependency on road transport and generally an increased share of greenhouse gas emissions from the sector, actions needs to be taken among actors in the logistics system. The purpose of this thesis is to explore logistics actions that enable environmentally sustainable freight transport. LÄS MER