Sökresultat:
8086 Uppsatser om Time series - Sida 20 av 540
Värmesystemsutveckling
In cooperate with Asko Cylinda we have developed a new heat system too short the process
time and reduce the energy consume in a dishwasher and still have it too be a class AAA.
The environment and quality is important for the company too still be the number one on
the market, If they want too keep that position the product developed of new innovations will
be very important. The systems we have developed are more effective and reduce energy up
too 25 %. The process time is reduced too less than two hours, from the today two and
half-hour. The solutions are too heat up the rinse water and the dishwater at the same time,
with a new heating system and it make are solutions unique and effective. Its good for the
dish and the environment.
Prövning av liggtidssensorer som indikator på förestående kalvning hos dikor
The aim of the study was to find repetitive behavioral patterns pre calving that could be used as indications of calving in beef cattle. In the study sixteen Standing- and lying down sensors were attached to the leg of sixteen beef cows. Ten of the sixteen beef cows gave birth to calves during the trial period. From these ten cows, data from six cows were used to assess the sensors fitness for use as calving indicators. The analytical part of the experiment was divided into two parts, calculation of divergence of mean lying time within different time intervals, and the number of lying bouts.The first part consisted of optimization of an equation used to highlight divergence in mean lying time within eight different time intervals (3, 6, 9, 12, 15, 18, 21 and 24 hours).
"De öppnade portarna för mig och sa `hej då`" : en kvalitativ studie om personers berättelser som frihetsberövande på grund av misstanke till ett brott och tiden efter frisläppningen.
Being detained means that a person loses their freedom and have limited contact with others. Police can on suspicion of a crime arrest a person, in order that the suspected person won´t be able to eliminate evidence. Being convicted of a crime and go to prison is terrible, but what about the experiences of being detained on suspicion of a crime you did not commit? Our purpose with the study is exploring stories of people who have been detained. It´s about their time as detainees to the time they got free from suspicions of the crime.
Optimering av prestanda och utnyttjande av flertrådsteknik
The purpose of this thesis was to help the company Medius AB with optimization of selected parts in an existing system to minimize the execution time by implementing multithreading. The idea was to manipulate the code so that calculations could be executed at the same time. The main work in this thesis consisted of three optimizations. The first one was to reconstruct a big ?for-loop? so it would execute every loop's work in an own thread. The second optimization also was a reconstruct of a ?for-loop? so it could execute the work in different threads. The third and last optimization consisted of reconstructing a stored procedure on the database, so different parts of it each could be executed in an own thread to create data at the same time. To implement the optimizations Visual Basic .NET and its support for multithreading and connection-pools was used. The result of the optimizations meant that one of the modules could be executed more efficiently and it was 12 % faster. The other modules execution time was more efficient by 25 % faster. The meanings and requirements for this thesis are fulfilled by now letting the system make use of its resources in a better way..
Simulering av simulinkmodeller medExtended Kalman FilterTidsoptimering av integrering
Simulation of different systems can be done using a graphical model description of the system based on block diagrams. The simulation software Matlab/Simulink offers a lot of possibilities to describe a huge number of systems, which can be linear as well as nonlinear. The simulation using Matlab/Simulink is done by integration based on different kinds of numerical methods.When nonlinear Simulink-models are simulated, it is often interesting to apply a Kalman filter to handle the noise that may occur within the process as well as corrupting the measurement. However, application of such a filter leads to an extensive time-consumption despite using fast computers. The reason is that the existing Matlab functions are not constructed for time optimal evaluation.
?Å ena sidan, så är vi helt oumbärliga, å andra sidan så behöver vi ingenting? : En kvalitativ studie av hur fritidspedagoger upplever att deras yrkesroll påverkats av att fritidshemmet blivit en del av skolan
In the early nineties leisure-time pedagogic establishments moved in to school. The aim of the study is to try to find out how leisure-time pedagogues, who have been working for a long time, experience the moving of their establishment in to school and how this affect their practical work and their profession.The study is based on interviewes with four leisure-time pedagogues, who all have been working before?and therefore have experienced the time before?during and after their establishment moved in to school.These interviewes were recorded and later fully transcribed in preparation of analysis. Data was analysed with the help of the sociology of Pierre Bourdieu as a basis. Findings of the study suggest that the leisure-time pedagogues find it positive to be able to cooperate with teachers and other professional groups working in school, they explain how it enabels themselves to see pupils from a different angle and for others working in school to see pupils from a leisure-time pedagogue angle.Some of the pedagogues explain that they find it hard to work with big groups of pupils, or in small surfaces, which they did not have to do before their establishment moved into school.
Hur används historia? : en historiebruksanalys av gymnasiets läroplan i historia 1970-2011
A new curriculum, entailing news for teachers as well as students, was implemented in 2011. Among other things History has been given a more prominent position in that every student will now study the subject. Can this decision lead to history being used more in the future?The aim of this thesis is to study the new curriculum, Gy11, as well the Lpf94 and Lgy70, based on Klas-Göran Karlsson´s typology where the use of history is divided into seven different categories. I will analyze the curricula, looking at what different uses of history that can be discerned as well as what changes have been made over time.
Låt det lysa. Ett utforskande projekt mellan bild, ljus och yta
In my project I worked with fluorescent color and fear as a theme together. It was based on my question for what happens when you take all the lights out and highlight a fear or phobia. I wanted to experiment and explore the course of event within the surface of a picture by using this kind of paint.I worked with illustration and pattern to bind the two pictures together. The aim was to investigate what is possible with the picture as a medium and work with contrast to make it as effective as possible. My goal was to make one poster of each fear and to make them work together as a series as it?s best.I asked myself many questions such as;? What happens to the surface, image and room when you use this color?? Will a new quality appear?? What happens when you mix two pictures together on a parallel level that only show in different kind of light?.
Metod för att bestämma drifttid
The usage time is an important part of the specification for products powered bybatteries. The usage time is affected by a number of different elements; technical,environmental and how the product is being used. The method to determine theusage time is intended to define how measurements and calculations are to berealized along with influencing factors to keep in mind. With support from thismethod the intention is to gain control on how well the established usage time canbe expected to cohere with the real value and what affects the value.The study is done specifically for hearing protectors with battery powered built inelectronically functions. The functions can be level dependent function forambient hearing, 2-way radio communication, Bluetooth or FM-radio.The first chapter of the report describes the literature study performed in theproject.
Hållfasthetsegenskaper i gjutjärn : tensile properties of cast iron
In the last few years people have become more and more aware of how humanity is affecting the climate. In the direction of reducing the greenhouse gases is to design engines with higher tensile properties and reduced weight, in order to achieve lower fuel consumption and cleaner fuel incineration in today's truck engines.In order to achieve these requirements it?s necessary to increase the combustion pressure in the engine. This requires higher tensile properties and high thermal conductivity of the engine material. The department of Component Technology at the University of Jönköping in collaboration with Volvo Powertrain AB, Scania CV AB and DAROS Piston Rings AB has been commissioned to develop this material and to find knowledge of material properties used in truck engines and piston rings used for marine applications.The purpose with this work is to analyze the tensile properties of a series of cast iron, cast under different metallurgical conditions.Four different series of cast irons have been analyzed from four points of view, carbon concentration, nodularity, amount inoculation and cooling rate.After the tensile test all specimen data was analyzed in a mathematic calculation program called Matlab 2006a.
Dockor, bilar och rutschkanor : Leksakers genusbetydelse i bilderböcker
This essay will focus on the significance of gender in toys´ portrayed in children books for the age 3-5years. The aim for the essay, partly, is to highlight how gender stereotypes can come forth and affect children through the way toys are illustrated within children?s books. The essay will address books from two different time periods, the first period being the 40-50- 60's and the other being the 00´s. The questions to be addressed in this essay is; what type of toys? children play with in the books used in the analysis, and if a change can be detected between the different time periods in terms of gender awareness in what type of toys are presented in the books.The main method used in this essay is an iconological image analysis in which the first step is mapping, other methods used is analysis and interpretation.
Etiken och det heliga En studie av relationen mellan etiken och det heliga i Giorgio Agambens och Emmanuel Levinas filosofier
The first aim of this study is to discuss and try to understand the relationship between the holy andethics, and more specifically how it can be understood, which is the critical question that I haveformulated, in Giorgio Agamben?s and Emmanuel Levinas? philosophies. The second, moreconstructive aim is to discuss whether the holy can be understood as something good or problematicin relation to the society.Rooted in philosophy of religion and ethics, I have first tried to discuss how the holy has beenunderstood in the philosophy of phenomenology and in the texts of Rudolf Otto, Mircea Eliade andEspen Dahl. The holy has in the history been understood as something central in religions, and hasalso not been connected to the idea of ethics. Recently it has also been critized ? by Dahl ? for notbeing so pure as first thought of.In Levinas texts the holy has been understood as something differentiated through his distiction,in the Talmudic reading ?Desacralization and Disenchantment?, between the holy, which can beseen as something pure, and the sacred which can been seen as something impure and a form ofdegenerated holiness.
Blödningsbenägenhet hos bengalkatter :
During the years 2005-2007 several cases of abnormal bleeding were seen after surgery in Bengal cats on veterinary clinics and animal hospitals in Sweden. In this study we have examined if the observed bleedings are due to an inherited defect of the coagulation cascade. Ten Bengal cats were tested for activated partial thromboplastin time (P-APT-time) and one-stage protrombin time (P-PK), and nine of these cats were tested for fibrinogen quantity (P-fibrinogen). Four of the tested cats had shown signs of an abnormal bleeding after surgery, and five of the cats were genetically related to these cats. One cat had a small bleeding wound at the internal base of the right auricle.
Quantification of sleep in dairy cows in three different stages of lactation
The aim of this project was to quantify the total sleep time in modern dairy cows during24-hour periods and to investigate whether the total amount of sleep as well as timespent in different sleep stages varies between the dry period, early- and peak lactation.The distribution of sleep time between night and day was also examined. Furthermore,correlations between sleep and lying time, fluctuations in body temperature and heartbeat were included in the aim. Eight dairy cows of the Swedish Red breed were used inthis study, which was carried out between June and September 2010. In order toquantify sleep non-invasive electrophysiological recordings were performed.Simultaneously with collecting sleep data, body position and body temperature werealso recorded. No heart rate data was obtained due to difficulties of maintainingelectrodes for heart beat measurements attached to the skin.
Underso?kning av tryckfall relaterat till avstånd mellan två 90 graders kro?kar i cirkula?r ventilationskanal
Due to higher standards of living around the world, greater industries and larger infrastructures causes an increase of the global energy consumption. This harvest of energy puts a great stress on the global environment. With this development, it becomes increasingly important to utilize energy resources in the best possible way.Fans are components that are often used in the industry and in households. A common problem is that the fan is oversized. An oversized fan causes an excessive flow, which has to be adjusted in order to achieve the correct flow.