Search for dissertations about: "process limitations"

Showing result 1 - 5 of 605 swedish dissertations containing the words process limitations.

2. 1. Process modelling in pulp and paper manufacture : Application studies with aspects of energy efficiency and product quality

   Author : Daniel Ekbåge; Lars Nilsson; Helena Håkansson; Birgitta Engberg; Karlstads universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CTMP; freeness; process modelling; board machine; multiple effect evaporator; Miljö- och energisystem; Environmental and Energy Systems;

   Abstract : The manufacture of pulp and paper is an energy intensive process configured of several unit processes that shape a network of flows of wood chips, chemical pulp, mechanical pulp, board and other important components. Improved energy efficiency supports sustainability of the process and the products. READ MORE

4. 2. 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

5. 3. Improving Business Processes using Process-oriented Data Warehouse

   Author : Muhammad Khurram Shahzad; Paul Johannesson; Jelena Zdravkovic; Marite Kirikova; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; process analysis; business process improvement; goal-driven process improvement. process-oriented data warehouse; business-orientation of process warehouse; decision making; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Abstract : The Business Process Management (BPM) lifecycle consists of four phases: design and analysis, configuration, enactment, and evaluation - also known as performance analysis and improvement. Performance analysis and improvement of business processes, one of the core phases in the BPM life cycle, is becoming on top of the agenda for many enterprises. READ MORE

6. 4. The wet fermentation biogas process : Limitations and possibilities for efficiency improvements

   Author : Johan Lindmark; Rebei Bel Fdhila; Bo Svensson; Mälardalens högskola; []
   Keywords : Energy- and Environmental Engineering; energi- och miljöteknik;

   Abstract : The biogas process is known as an environmental friendly and sustainable way of producing energy and fuel but to be fully commercially competitive with other types of processes, efficiency improvements are needed. By doing a case study at the Växtkraft biogas plant in Västerås, Sweden, three specific limitations were identified and studied. READ MORE

7. 5. High Aspect Ratio Microstructures in Flexible Printed Circuit Boards : Process and Applications

   Author : Hanna Yousef; Klas Hjort; Mikael Lindeberg; Peter Leisner; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; flexible printed circuit boards; polyimide; through-hole vias; ion track technology; thermoelectricity; thermopiles; substrate integrated waveguides; millimeter wave devices; Teknisk fysik; Engineering physics; Teknisk fysik;

   Abstract : Flexible printed circuit boards (flex PCBs) are used in a wide range of electronic devices today due to their light weight, bendability, extensive wiring possibilities, and low-cost manufacturing techniques. The general trend in the flex PCB industry is further miniaturization alongside increasing functionality per device and reduced costs. READ MORE