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In this paper, a control-oriented soot model was developed for real-time soot prediction and combustion condition optimization in a gasoline Partially Premixed Combustion (PPC) Engine. PPC is a promising combustion concept that achieves high efficiency, low soot and NOx emissions simultaneously. However, soot emissions were found to be significantly increased with high EGR and pilot injection, the

This paper addresses design space exploration for streaming applications (such as MPEG) running on multi-processor platforms with guaranteed service interconnects. In particular, we solve mapping, path selection and router configuration problems. Given the complexity of these problems, state of the art approaches in this area largely rely on greedy heuristics, which do not guarantee optimality. Ou

In this paper we examine the idea of implementing communicating sequential processes (CSP) constructs on a Java embedded chip multiprocessor (CMP). The approach is intended to reduce the memory bandwidth pressure on the shared memory, by employing a dedicated network-on-chip (NoC). The presented solution is scalable and also specific for our limited resources and real-time predictability requireme

Popular Abstract in Swedish Populärvetenskaplig sammanfattning på svenska Abort är ett av de vanligaste kriurgiska ingreppen i Sverige. 1989 var aborttalet för hela landet 21.5 per 1000 kvinnor i åldern 15-24 år. Storstäderna Stockholm, Göteborg och Malmö har i många år haft det högsta aborttalen, vilka var för dessa 1989 28.4, 27.0 respektive 27.8. De aktuella studierna omfattar de 1466 kvinnorIn Sweden between 32-38,000 women annually elect to terminate pregnancy by means of induced abortion, though their reasons are still not well understood. The purpose of these studies, carried out at the Department of Obstetrics and gynecology and of Community Medicine at University Hospital, Malmö, was to elucidate the incidence of induced abortion in an urban population, with special emphasis on

Automation in aerospace industry is often in the form of dedicated solutions and focused on processes like drilling, riveting etc. The common industrial robot has due to limitations in positional accuracy and stiffness often been unsuitable for aerospace manufacturing. One major cost driver in aircraft manufacturing is manual assembly and the bespoke tooling needed. Assembly tasks frequently invol

Economies in transition (EiTs) (e. g. Ukraine (UA), Belarus, Lithuania (LU), Moldova, etc.) face broad needs for energy security enhancement, energy diversification, revitalisation of agriculture and improvements in the state of the environment. Development of national bioenergy potentials can contribute to delivering solutions to these problems. However, EiTs face technical, political, financial,

While research on the design of heterogeneous concurrent systems has a long and rich history, a unified design methodology and tool support has not emerged so far, and thus the creation of such systems remains a difficult, time-consuming and error-prone process. The absence of principled support for system evaluation and optimization at high abstraction levels makes the quality of the resulting im

In this paper, we study the joint design of optimal linear encoders and decoders for filtering and transmission of a signal over an additive Gaussian noise channel subject to a real-time constraint. The objective is to minimize the variance of the estimation error at the receiving end. The design problem is nonconvex, but it is shown that a global optimum can be found by solving a related two-stag

This paper presents a method for auto-tuning interactive ray tracing on GPUs using a hardware model. Getting full performance from modern GPUs is a challenging task. Workloads which require a guaranteed performance over several runs must select parameters for the worst performance of all runs. Our method uses an analyti- cal GPU performance model to predict the current frame’s render- ing time usi

Since the 1960s, product designers, architects, lighting planners, gamers and scientific visualizaiton specialists have craved the ability to work in real-time three-dimensional photorealistic virtual worlds. The authors, one specializing in making computer graphics more convincing and the other focusing on making them faster, present the achievements and challenges in the race for real-time photo

The parallel structure of dataflow programs and their support for processing streams of data make dataflow programming an interesting tool for doing stream processing on parallel processing architectures. The computational kernels, the actors, of a dataflow program communicate with other actors via FIFO channels. The actors in the dataflow model used in this paper may perform different actions dep