A well known optimization-problem of multiprocessor system is scheduling of tasks. In this paper I use a variant of previous known algoritm, (Fast Critical Path) for scheduling real-time tasks on a multiprocessor system. This is made in a simulation study in MATLAB. The system architecture is assumed to be a MIMD- machine, (Multiple Instruction stream Multiple Data stream) with bus-typologi and message-architecture. Scheduling was made on this system where the number of processors varying from five to ten.

This thesis examines and measures differences in effciency between L1- and L2 language use for solving referential problems. Quantitative measures used in the study were time and error frequency. Qualitative measures, such as how the tasks and the participants own performance were experienced, were measured by an post interview and two questionaires. Two different tasks, a sorting task and a construction task, in which each informant was given the role as a constructor or instructor, were used for data gathering. A total of 20 dyads, divided in two language groups (English and Swedish) participated in the study.

This thesis considers the development of the software for an, newly developed, embedded real-time control system, based on a Periferal Interface Controller (PIC). The control system is developed to be used for several different applications. In this thesis work, software for two different applications are developed. The first task is a time controlled system, while the other task is implementation of aPI-/PID-controller. A user interface is also developed and implemented.The time controlled system is an automatic horse feeder, which is used for feeding horses at certain predefined points in time.

This paper is about the use of task boards in agile system development projects. The main focus is on how digitalized versions of the task board can be of assistance during the development process. Our investigation is based on qualitative studies, with system developers of various backgrounds and professional roles, along with studies of relevant literature. The main results are that a digitized version of the task board can increase awareness for the team and be of major importance if it is accessible through the web. On the other hand negative effects of the digitalization can emerge as well.

The purpose of this study was to analyze the impact of learning on open-field activity among pre-school children varying from 3 to 5 years old. Altogether 25 children, 13 girls and 12 boys, entered the test from three different preschools in Dalarna. Six of these children represented the control group. The children were asked to learn 2 tasks, 1 visual memory task and 1 spatial constructing-kit task. Before, between and after the tasks, the children were allowed to move freely in the open field.

Detta arbete undersöker skillnader i tidseffektivitet mellan beteendeträd ochHierarchical Task Network. En enklare spelprototyp av typen top-down 2D shoot-emup implementerades. Spelprototypen använder två typer av autonom motspelare så kallade botar. En bot för beteendeträd och en bot för Hierarchical Task Network. Spelprototypen mäter körtiden för varje typ av bot i sex olika situationer.

The aim of the present study was to investigate response time variations in tasks for assessment of high level language functions and how response time is related to education, age and gender. Response time is defined as the time to complete a task after it has been presented. 103 subjects, aged 20 to 80 years, were tested with the Assessment of Subtle Language Disorders, Sentence analysis and Morphological completion. The subtest Comprehension of ambiguous sentences showed the longest response time and Morphological completion the shortest. Correlations were found between increasing age and longer response time for Comprehension of metaphors and between education and response time for several subtests.

Every municipality in Sweden is responsible for offering its citizens adequate childcare. Parents hand in a preliminary schedule to the preschool for when their child needs to be in childcare, and based on this the preschool staff is scheduled. Some municipalities measure the actual time a child is in childcare. The essay idea comes from when I heard that one municipality was thinking of register the children's actual time in preschools. I started thinking on how to solve such a task.

This master thesis studies how much the cycle time, i.e. the time it takes for an industrial robot to perform a given task, can be reduced if an extra degree of freedom (DOF) is added to the robot system. The extra DOF consists of a linear track, which is supposed to be used in an optimal way. The problem has been studied using simulations in the robot simulation tool RobotStudio. To be able to run an optimization in Matlab, with the RobotStudio simulation cycle time as the object function, communication between Matlab and RobotStudio has been set up with an interface written in Visual Basic.

This degree project was conducted in collaboration with Gremo AB located in Ätran.The aim of the project was to develop a solution to secure quality and to help assemblingthe locknut holding the vertical hinge on the harvesters and foresters from Gremo.At this time the nut is assembled manually by the aid of an overhead crane. The nut istightened differently from time to time, and there was no specified torque to which it istightened. Another present problem was the locking washer which sometimes getsdamaged during assembly, when this happens the procedure has to be started over fromthe beginning. The current assembly procedure is very time consuming and lengthy forthe employees.Our task was to design a machine that could tighten the nut to a specified torque with amargin of error of ± 3%. The assembly procedure will be held simple and the timerequired at a minimum.The project started by developing several principle solutions, the one solution that bestmatched our specifications were developed to a primary solution.Today we have started manufacturing and assembling our prototype.

Denna rapport handlar om hur jag gått tillväga för att designa ett användargränssnitt för kassaapparater till företaget STAMFORD. Rapporten består av bland annat forskning på struktur vilket är det betydelsefulla i detta arbete. Arbetet består också av användartester och olika designbeslut som har gjorts tillsammans men en annan student, Eli Joseph. Det finns också en första och en andra design med användartest och resultat från båda omgångarna. Avslutningsvis går jag igenom vad jag fått fram av detta arbete och vad som kan vara värt att titta på vid eventuell vidare forskning.Nyckelord: gränssnitt, kassaapparater, snabbt, effektivt, Task-time, Task-success.

Denna rapport handlar om hur jag gått tillväga för att designa ett användargränssnitt för kassaapparater till företaget STAMFORD. Rapporten består av bland annat forskning på struktur vilket är det betydelsefulla i detta arbete. Arbetet består också av användartester och olika designbeslut som har gjorts tillsammans men en annan student, Eli Joseph. Det finns också en första och en andra design med användartest och resultat från båda omgångarna. Avslutningsvis går jag igenom vad jag fått fram av detta arbete och vad som kan vara värt att titta på vid eventuell vidare forskning.Nyckelord: gränssnitt, kassaapparater, snabbt, effektivt, Task-time, Task-success.

This report is the result of a case study at Peltor AB during the spring semester of 2007. The task Peltor gave us was to improve the delivery accuracy and to lower the high finical value of delayed orders (backorder), and to divide the products into logical groups. The logical group will be a useful tool to remain a high level of service. If the level of service increases the company will be more competitive.The electronic department at Peltor has problems with delayed orders. According to Peltor, the problem is based on delivery lead time which is presumed.To increase the delivery accuracy, a lead time analysis is made to find the accumulated delivery lead times for each product.

Syntesdesign AB is an academic company that is supposed to enter the HIV drugmarket by manufacturing a "me-too"-drug with indinavir as the starting substance.Our task is to find 100 potential indinaviranalogues. Our further task is to suggesthow to perform a bondingassay to test the affinity for all these analogues. We willpresent a method, required equipment and calculated costs for the assay..

I examine how relationships between people and objects are created and continues through contiguity every time one use or touch an object and through participation through use and memories. The aim is to continue a relationship and to keep a communication alive with people beyond time and space, then, now and henceforth. I take advantage of and transform the traces in an object that belonged to someone. Parallel I create new space for bodies to put their mark for the first time. I compare my work with the Nordic Museum's task to preserve the present for the future.