From a control design point of view, modern diesel engines are dynamic, nonlinear, MIMO systems. This paper presents a method to find low-complexity black-box dynamic models suitable for model predictive control (MPC) of NOx and soot emissions based on on-line emissions measurements. A four-input-five-output representation of the engine is considered, with fuel injection timing, fuel injection dur

To be able to determine the position of a static object in 3D space by means of computer vision, it has to be seen by cameras from at least two different view points. The same applies for measuring the position of a moving object based on images captured at one single time instant. However, if the cameras are not synchronized in time, or if a moving object is not visible in all images, one can not

This paper presents experimental results on model predictive control of the combustion phasing in a Homogeneous Charge Compression Ignition (HCCI) engine. The controllers were based on linearizations of a previously presented physical model of HCCI including cylinder wall temperature dynamics. The control signals were the inlet air temperature and the inlet valve closing. A system for fast thermal

SummarySustainable sewage sludge management has been a heavily debated topic in Europe for more than a decade. Due to its content of pollutants such as heavy metals, pharmaceuticals and other organic micropollutants, the use of sewage sludge for farmland application is currently banned or restricted in most European countries. Therefore, alternative methods for sludge management are discussed. The

We have developed a system identification algorithm to fit continuous-time state-space models to data. The methodology includes a continuous-time operator translation, permitting an algebraic reformulation and the use of subspace and realization algorithms. The new approach has proved effective in identification and modeling of ultrasonic echo applications.

BackgroundParental education has been suggested to be an effective instrument for improving child health in low- and middle-income countries. Both education and child health have improved, however, as well as related factors. These changes may have implications for the observed association.MethodsWe used Demographic and Health Surveys conducted in 43 countries at two points in time, between 1991 a

Studies have suggested a causal link between behaviors and attitudes prescribed by religious doctrine and child health. However, religious affiliation can also be a marker of differential access to resources and living standards. Studies have found that children born to Muslims in West Africa have poorer health outcomes than children born to Christians. Despite coexisting within national borders,

Background: Repetitive work, work performed in awkward and constrained postures and work with excessive or sustained muscular load is common in many occupational settings. Such work is known to be risk factors for developing musculoskeletal disorders in the neck/shoulder region and in arms and hands. One method that can be used to assess the exposure to these risk factors is technical recordings t

Objectives: We analysed mutually comparable surveys on adolescent attitudes and behaviours from nine sites in seven sub‐Saharan African countries, to determine the relationship between school enrolment and adolescent health outcomes.Methods: Data from the Africa Research, Implementation Science, and Education Network cross‐sectional adolescent health surveys were used to examine the associations o

In education programs with an artistic ground, i.e. where the student is supposed to develop an artistic skill, the overall objective is to provide the fundament for a practitioner to become a well functioning individual in a specific artistic community. This artistic community of practice plays – directly through professionally active teachers, and indirectly through teachers with a good understa