Search for dissertations about: "contribution of internal control"

Showing result 1 - 5 of 39 swedish dissertations containing the words contribution of internal control.

2. 1. Towards Improved Control of TMP Refining Processes

   Author : Karin Eriksson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control; dynamic modeling; process limitations; simplified decoupling; Refiner; refining zone temperature; internal interconnections;

   Abstract : The need for improved energy usage has become a key issue in all industrial sectors. In the energy demanding production of mechanical pulps many efforts havefocused on design development, but regarding control of refiners, there is still a potential for improvements. READ MORE

4. 2. Management Control : Linking Strategy with Inter‐Organisational Relationships

   Author : Zita Ambrutytė; Jonas Gerdin; Linköpings universitet; []
   Keywords : Management control systems; business strategy; inter-organisational relationships; management control variables; intra-organisational controls; Management control systems; styrsystem; affärsstrategi; inter-organisatoriska relationer; styrvariabler; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

   Abstract : The alignment of strategies and control systems is believed to affect the chances for firms to successfully achieve competitive edge. Contemporary business trends like globalization, vertical disintegration, the reduction in supplier bases, the focusing of operations and outsourcing of non-core activities, have caused companies to rely increasingly on relationships with other firms. READ MORE

5. 3. Analysis of VSC-based HVDC systems

   Author : Georgios Stamatiou; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC; MMC; MTDC; Poor damping; Symbolic eigenvalue expressions; Droop control; Passivity Analysis; Net damping; Frequency Domain Analysis; VSC;

   Abstract : The main objective of this thesis is to perform stability and control studies in the area of VSC-HVDC systems. A major part of the investigation focuses on the development of procedures, whose aim is to understand, explain and avoid poorly-damped conditions or instability that may appear due to dc-side resonances, which stem from the interaction of converters and passive elements in such systems. READ MORE

6. 4. Analysis of Embedded Controllers Subject to Computational Overruns

   Author : Nils Vreman; Institutionen för reglerteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fault-tolerance; Real-time systems; Weakly-Hard; Embedded control;

   Abstract : Microcontrollers have become an integral part of modern everyday embedded systems, such as smart bikes, cars, and drones. Typically, microcontrollers operate under real-time constraints, which require the timely execution of programs on the resource-constrained hardware. READ MORE

7. 5. Electric Machine Control for Energy Efficient Electric Drive Systems

   Author : Andreas Andersson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; modulation techniques; permanent magnet synchronous machine PMSM ; Energy efficiency; inverter control.; noise assessment;

   Abstract : Over the past decade, electric vehicles has increasingly become an area of attention for both academia and industry, much due to challenges such as emissions legislation and the environmental impact of the transportation sector. The absence of the broadband noise from the internal combustion engine brings new acoustic challenges for electric propulsion applications. READ MORE