Sökning: "Siemens"

Visar resultat 16 - 20 av 25 avhandlingar innehållade ordet Siemens.

  1. 16. Communities in the Digital Age : Towards a Theoretical Model of Communities of Practice and Information Technology

    Författare :Marcus Lippert; Lars Engwall; Jan Lindvall; Elizabeth Robinson (Robin) Teigland; Uppsala universitet; []
    Nyckelord :Information Technology; Communities of Practice; Knowledge Management; Organizational Learning; Structuration Theory; Intranet; Legal Advice; Business Studies; Företagsekonomi;

    Sammanfattning : The global change towards a knowledge economy forces organizations to seek new and better ways to manage knowledge work and learning. Organizations have recognized that dfferent information technologies can play an important role in their quest to make the desired changes take place. LÄS MER

  3. 17. A timing approach to network-based anomaly detection for SCADA systems

    Författare :Chih-Yuan Lin; Simin Nadjm-Tehrani; Mikael Asplund; Aditya P Mathur; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SCADA securuty; anomaly detection;

    Sammanfattning : Supervisory Control and Data Acquisition (SCADA) systems control and monitor critical infrastructure in society, such as electricity transmission and distribution systems. Modern SCADA systems are increasingly adopting open architectures, protocols, and standards and being connected to the Internet to enable remote control. LÄS MER

  4. 18. Surface Integrity and Fatigue Performance of Nickel-based Superalloys

    Författare :Zhe Chen; Ru Peng; Johan Moverare; Sten Johansson; Manuel François; Linköpings universitet; []
    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;

    Sammanfattning : Due to global warming, the demand for more efficient gas turbines has increased. A way to achieve this, is by increasing the operating temperature of the gas turbine. Therefore, nickel-based superalloys have been developed to withstand these extreme temperatures and loads, especially in the hot sections. LÄS MER

  5. 19. Modelling of methane and hydrogen enriched methane flames in industrial gas turbine burners

    Författare :Daniel Moell; Strömningsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The majority of the power production in the world today is based on combustion of coal, oil and natural gas. Most countries have agreed that the amount of CO2 emitted to the atmosphere will have to be decreased to keep the global warming at sustainable levels. LÄS MER

  7. 20. Riksgränsbanans elektrifiering : Stat och företag i samverkan: 1910-1917

    Författare :Roine Wiklund; Mats Fridlund; Luleå tekniska universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Teknikhistoria; History of Technology;

    Sammanfattning : Syftet med föreliggande doktorsavhandling i teknikhistoria är att öka kunskapen om varför, men framförallt hur och under vilka villkor den första elektrifieringen av en statsägd järnväg genomfördes i Sverige. Arbetet med Riksgränsbanans elektrifiering pågick 1908-1917 och var på många sätt ett unikt pionjärprojekt. LÄS MER