Sökning: "power handling"

Visar resultat 16 - 20 av 207 avhandlingar innehållade orden power handling.

1. 16. Control of Voltage Source Converters for Voltage Dip Mitigation in Shunt and Series Configurations

   Författare :Massimo Bongiorno; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power Quality; Current Controller; Voltage Source Converter VSC .; Power Electronics; Voltage Dip Sag ;

   Sammanfattning : Custom Power is the application of power electronics to improve the quality of power distribution for sensitive industrial plants. Industries reporting production stops due to voltage disturbances, like short interruptions and voltage dips, include paper mills, semiconductors facilities and other industries with fully automated production. LÄS MER

3. 17. I stället för fängelse? : En studie av vårdande makt, straff och socialt arbete i frivård

   Författare :Kerstin Svensson; Socialhögskolan; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; theory of social work; Social changes; Sociologi; Sociology; Client; Social Worker; Relationship; Power; Social History; Social Work; Probation; Punishment; Sociala förändringar; teorier om socialt arbete; Social and economic history; Ekonomisk och social historia;

   Sammanfattning : The purpose of this thesis is to gain a deeper understanding of the relationship between support and control. The purpose is reached by a study of the probation service as an organization and the practical side of its work The thesis is based on two empirical studies. One is a study of records and published texts from the period 1820-2000. LÄS MER

4. 18. Thin Film Plate Acoustic Resonators for Frequency Control and Sensing Applications

   Författare :Lilia Arapan; Ventsislav Yantchev; Ilja Katardjiev; Enrique Iborra; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electro-Acoustics; FPAR; Lamb waves; aluminium nitride; interdigital transducer; phase noise; temperature compensation; power handling; sensitivity; zero group velocity; intermode coupling; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology;

   Sammanfattning : The recent development of the commercially viable thin film electro-acoustic technology has triggered a growing interest in the research of plate guided wave or Lamb wave components owing to their unique characteristics. In the present thesis i) an experimental study of the thin film plate resonators (FPAR) performance operating on the lowest symmetrical Lamb wave (S0) propagating in highly textured AlN membranes versus a variety of design parameters has been performed. LÄS MER

5. 19. Den lokalpolitiska karriären : en socialpsykologisk studie av tjugo kommunalråd

   Författare :Thorbjörn Nilsson; Anders Persson; Växjö universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Career; moral career; field; social psychology; social meaning; life stories; self-presentation; local politics; politicians; power; Sociology; Sociologi; Sociology; Sociologi;

   Sammanfattning : This thesis studies the combination of an actor's course of life with a field-specific career. The career is seen runs through a social room assuming an objective shape. It also runs through a field characterized by the competition for positions and resources.The field is of a relatively stable character and is closely attached to the social room. LÄS MER

7. 20. Multiobjective optimization in engineering design : applications to fluid power systems

   Författare :Johan Andersson; Sören Andersson; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : This thesis focuses on how to improve design and development of complex engineering systems by employing simulation and optimization techniques. Within the thesis, methods are developed and applied to systems that combine mechanical, hydraulical and electrical subsystems, so-called multi-domain systems. LÄS MER