Sök:

Sökresultat:

11877 Uppsatser om Systems development life cycle - Sida 10 av 792

Analysis of Intent Specification and SystemUpgrade Traceability

The impact of computer programs in safety-critical systems has increased in the past decades and computer-based systems can now be found in a wide range of applications. A new approach for developing dependable systems is documenting all design rationale that affects safety using Intent Specifications. A recent approach for developing complex systems efficiently and in an upgradeable manner is Component-Based System Engineering. In this thesis, these approaches are combined in the development and upgrade of a Remote Robot Control Unit by using the tool SpecTRM. The case study showed that Intent Specifications and CBSE could successfully be combined.

Förekomst av smak- och/eller luktförändringar vid antitumoral behandling med kemoterapi

Aim: The aim of present study was to determine the frequency of taste and smell disorders occuring in patients receiving chemotherapy for cancer. Methods: The study was of an empirical cross sectional quantitative descriptive design. During one month, consecutive cancer patients at outpatient units in two Swedish hospitals were asked to participate in the study by completing a questionnaire that had been developed previously for a similar study. All participants had undergone at least 1 cycle of intravenous chemotherapy or  a minimum of seven days of oral chemotherapy. Results: A total of 102 patients completed the questionnaire.

Freshwater pearl mussel as indicators of Swedish streams - a comparison between freshwater pearl mussel and biological quality elements

The freshwater pearl mussel (Margaritifera margaritifera) is a large freshwater mussel. Because of its sensitivity to human impact, such as eutrophication, acidification and alterations of hydromorphology, the species is considered as a robust indicator of stream water quality and biodiversity. Moreover, due to the species complex life cycle, including a larval stage on the gills of salmon and trout, and sensitivity of early life stages, regeneration is often used as an indicator. The freshwater pearl mussel is also used in the expert judgement of status classification of benthic invertebrates according to the European Water Framework Directive. The purpose of this study was to gain a deeper understanding of the freshwater pearl mussel as an indicator for Swedish streams. It was made with two types of association analyses.

 ?Livsformernas strukturering av mäns och kvinnors vardagsliv på landsbygden :  ?En studie kring könsstrukturerna i djurhållande företag i Kalmar län.

 AbstractThis study is performed by studying seven livestock businesses in the agricultural sector. The focus of the essay has been put on the structures that limit and enable the lives of the farmers in this study. One of these major structures that affect everyday life is the gender structure and to this day the housewife role exists where the women are responsible for the home, family and domestic pets while the men are responsible for the production, machinery and the heavier tasks on the farm. This is grounded in the history and the development that agriculture has gone through, but also in the strong patriarchal power structure that exists in this industry. In this essay I also show how the life form analysis of Liselotte Jakobsen and the independent life form can not be fully applied to the farmer as he is not completely independent in his work.

Samverkande, motverkande eller kompletterande? : En uppsats om relationer mellan styrsystem

Title: Co-operative, prevent or complement? - An essay on the relationships between control systems. Authors: Kim Eriksson and Victoria KarlssonPurpose: The essay aims to describe the relations between control systems and how they related to each other, based on an operationalization of the control systems. Research question: What are the control systems relations to each other? With regards whether control systems co-operative, prevents and/or complement each other.Theoretical framework: The essays theoretical framework is based on Malmi and Browns (2008) description of five different control systems and control mechanisms associated with each control system.   Research methodology: The method was based on three different data collection methods. These methods were observations, documentation, and semi-structured interviews.Conclusions: It is concluded that the control systems has comprehensive relations. Control systems have more, than one, relation to each other..

Energiåtervinning : av kompressorkylvattnet

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Sjuksköterskans uppfattning om livskvalitet

Background Satisfaction of life and wellbeing is shown to be important when the quality of life is to be understood. The nurse has a significant role in the care of the patient and in his/her experience of life. Aim The purpose of this study is to examine the quality of life, from a nurse perspective. Method The text analysis was carried out with qualified attempts, of a book, "Quality of life a challenge for the nurse" (in Swedish) by T. Rustoen, a nurse who also worked as a teacher in Norway.

Energivinst vid hybridisering av hydrauliskt system

Today's high oil prices and more stringent environmental requirements have led to that manufacturers of mobile construction equipment try to make their products more energy efficient. With this in mind a project about hybridization of hydraulic systems has been formed. The purpose of this project was to analyze the savings that can be achieved by hybridization of hydraulic systems. A reach stacker truck (Kalmar DRD450-80S4XS) were simulated in some load cases with conventional hydraulic systems and with three types of hybridized hydraulic systems. Different parts of the hydraulic systems were also analyzed separately.

OSE och Linux : En studie om prestanda

There are some key elements which distinguish a general operating system, such as Linux, from a Real Time operating system, such as OSE. The later belongs to the category of soft Real Time systems while Linux is a general operating system, with significantly improved real time properties after version 2.6. These improvements make it interesting to compare the two systems.When comparing two operating systems, there are a number of issues which have to be considered. One way to measure the performance of the systems is by studying the time consumption for the same functionality and hardware.During the study, the items that appeared as the most important for the performance of the systems, were: process primitives, system primitives, interprocess communication, context switches and interrupt latency.This work demonstrates that it is possible and reasonable to do performance testing on two different operating systems. The implemented tests cover a number of basic functionalities, which appeared to be the most crucial ones for the performance of the systems..

Spårtaxisystem i Uppsala

An increased awareness about the global warming has created a demand for more information on how the climate is affected by different activities.This master thesis was initiated by Tricorona, a Swedish company that offers its customers analysis and calculation of their climate impact. Tricorona also supplies climate neutralisation with CERs, in accordance with the Kyoto protocol and controlled by the UN. This work demands updated emission factors for greenhouse gases. An emission factor gives information about the greenhouse gasintensity of a service or a product [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating, hotels, taxis, food and materials affect the climate and how emission factors for these areas can be calculated.This was done by reviewing and comparing different studies and by interviewing experts. The information was evaluated and recommendations on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials.

Det går som tåget : Organisationers kommunikativa krisutmaningar

Purpose: The purpose of this study is to examine different organizations' views on their communicative crisis work. The study will analyze organizations' crisis prevention efforts, its views on the crisis of accountability in relation to stakeholders and to work for a crisis to be elucidated. In order to delineate the study focuses the investigation on various train organizations. Then the concept of crisis is something that circulated widely in the train sector in recent years.Theory: This examination has chosen to use the theory Situational Crisis Communication Theory. It is an empirically tested theory of a collection of different strategies.

Produktionsplaneringsrutiner för manuella svetsresurser

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Intern logistikgenomgång av nuvarande tillverkningsorganisation

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Flödessimulering av färdigvarulager

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Produktpackning : framtagning av ny layout

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

<- Föregående sida 10 Nästa sida ->