Search for dissertations about: "trade-off"

Showing result 21 - 25 of 570 swedish dissertations containing the word trade-off.

2. 21. Antenna Limitations and Q-factor Trade-off between Parameters, Steps towards Optimal Antenna Design

   Author : Shuai Shi; Lars Jonsson; Ala Sharaiha; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Antenna limitation; Q-factor; directivity; radiation pattern; current optimization; Electrical Engineering; Elektro- och systemteknik;

   Abstract : Sub-wavelength antennas have become ubiquitous in essential devices, such as mobile phones, sensors, Internet of things (IoT) and machine to machine (M2M) communication devices. Such antennas are often embedded as a small part of the device chassis or their circuit-boards. READ MORE

4. 22. Analysis and Design of Software-Based Optimal PID Controllers

   Author : Olof Garpinger; Institutionen för reglerteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; process industry; PID control; software; optimization; load disturbance attenuation; robustness; noise sensitivity; trade-off plots; modeling; friction stir welding;

   Abstract : A large process industry can have somewhere between five hundred and five thousand control loops, and PID controllers are used in 90–97% of the cases. It is well-known that only 20–30% of the controllers in the process industry are tuned satisfactorily, but with the methods available today it is considered too time-consuming to optimize each single controller. READ MORE

5. 23. Consensus Trade-offs in Wireless Sensor Networks

   Author : CHRISTOPHER LINDBERG; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Distributed Algorithms; Wireless Sensor Networks; Compressed Sensing; Consensus Algorithms; Trade-off Analysis;

   Abstract : As more and more everyday electronic devices become equipped with the combined re- sources of computation, sensing, and wireless communications, possible platforms for implementation of wireless sensor networks have become ubiquitous. The combination of these three main capabilities of such a network present the opportunity to for example gather high resolution measurement data, or cooperatively perform advanced computa- tional tasks. READ MORE

6. 24. Cardiovascular disease and hypertension : Population-based studies on self-rated health and health-related quality of life in Sweden

   Author : Carola Bardage; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacy; Cardiovascular disease; hypertension; antihypertensive treatment; side effects; self-rated health; health-related quality of life; health-state utilities; SF-36 Health Survey; rating scale; time trade-off; general population; twins; FARMACI; PHARMACY; FARMACI; Social Pharmacy; samhällsfarmaci;

   Abstract : The aim with this thesis was to study cardiovascular disease and hypertension, use of drugs and health from an epidemiological perspective. Various methods - self-rated health (SRH), health related quality of life (HRQL) - the 36-item short form questionnaire (SF-36) - and health utility measurements - the rating scale (RS) and the time-trade off (TTO) methods - were employed. READ MORE

7. 25. Preservation of Extra-Functional Properties in Embedded Systems Development

   Author : Mehrdad Saadatmand; Mikael Sjödin; Antonio Cicchetti; Vittorio Cortellessa; Mälardalens högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Software Engineering; Embedded Systems; Non-Functional Requirements; Extra-Functional Properties; Model-Driven Development; Trade-off analysis; Computer Science; datavetenskap;

   Abstract : The interaction of embedded systems with their environments and their resource limitations make it important to take into account properties such as timing, security, and resource consumption in designing such systems. These so-called Extra-Functional Properties (EFPs) capture and describe the quality and characteristics of a system, and they need to be taken into account from early phases of development and throughout the system's lifecycle. READ MORE