Sökning: "primary control"

Visar resultat 1 - 5 av 1235 avhandlingar innehållade orden primary control.

  1. 1. Linear Quadratic Gaussian Controllers for Feedforward Active Noise Control : Pushing Performance and Moving Towards Adaptive Control

    Författare :Annea Barkefors; Mikael Sternad; Anders Ahlén; Lars-Johan Brännmark; Bengt Carlsson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active noise control; ANC; LQG; feedforward control; sound field control; Elektroteknik med inriktning mot reglerteknik; Electrical Engineering with specialization in Automatic Control;

    Sammanfattning : Active noise control is a research area focused on using destructive interference of sound fields to attenuate undesired noise. Methods for active noise control are best suited for low frequency noise, as the complexity of the problem grows rapidly with frequency. LÄS MER

  3. 2. Extremum Seeking Control : Stability, Accuracy, and Applications

    Författare :Khalid Atta; Ying Tan; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Sammanfattning : In many applications, there is a variable that indicates the overall performance and that must be maximized, such as the output of a hydro power turbine or a mineral processing plant, or that must be minimized, such as CO2 emissions or the consumption of resources. Extremization of this variable (maximization or minimization) through adjusting the influencing manipulated variables is occasionally required without prior knowledge of the optimal values of the manipulated variables or of the optimized variable. LÄS MER

  4. 3. Internal Control : A Study of the Concept and Themes of Internal Control

    Författare :Olof Arwinge; Fredrik Nilsson; Nils-Göran Olve; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP; Economic Information Systems; Ekonomiska informationssystem;

    Sammanfattning : This thesis studies the accounting and auditing approach to control where the concept of internal control has developed along with the theory and practice of accounting and auditing and its stated objectives. In this context, internal control has traditionally been regarded as a means of ensuring financial reporting quality as well as a way of preventing and detecting fraudulent activity. LÄS MER

  5. 4. Asthma in Primary Care : Severity, Treatment and Level of Control

    Författare :Björn Ställberg; Gunnar Johansson; Kurt Svärdsudd; Bo Lundbäck; Eva Rönmark; Olle Zetterström; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adherence; adolescent; adult; asthma; asthma classification; asthma control; asthma severity; compliance; drug therapy; hyperresponsiveness; primary health care; smoking; asthma treatment.; Family medicine; Allmänmedicin;

    Sammanfattning : Aims. The overall aim was to examine the severity, treatment and level of control in patients with asthma in primary care in Sweden. LÄS MER

  7. 5. Model-Based Vehicle Dynamics Control for Active Safety

    Författare :Brad Schofield; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Control Allocation; Vehicle Dynamics Control; Friction Estimation; Model-Based Control Design;

    Sammanfattning : The functionality of modern automotive vehicles is becoming increasingly dependent on control systems. Active safety is an area in which control systems play a pivotal role. Currently, rule-based control algorithms are widespread throughout the automotive industry. LÄS MER