Sökresultat:
13939 Uppsatser om Design method - Sida 57 av 930
Laserprojektor
This report describes a thesis project on 15hp. The purpose of the thesis project is to build a laser projector that reacts on sound waves and thus get a laser beam to draw visualizations of sound waves on a wall. The idea was that the design would be independent and not have to be plugged into any audio equipment. This was achieved by absorbing sound waves into a microphone. Another factor was to get a ?do it yourself? -feeling of the design and therefore it was chosen to be constructed using for example, old hard-drives.The result was a relatively large and bulky designed laser projector that can draw sound waves on a wall..
Vridspjäll
Our education at Halmstad University was completed with a degree project. Our task was to improve an already existing pneumatic damper to Nederman in Helsingborg.
Overall we have made necessary calculations to make the design of the existing damper smaller. When these calculations were done, we moved on with an analysis of the existing damper in order to figure out what improvements could be made on each part of the damper.
The result of this project is a smaller and a more supple design of a pneumatic damper. To this we have also created complete drawings, calculated material expenses; we have also created an assembly of a pneumatic damper in Catia v5..
Ett designprojekt med fokus på för tidigt födda barns emotionella behov i kuvös
Babies born prematurely are deprived of normal sensorimotor stimulation when placed in an artificial environment, the incubator. The aim of this project was to design a series of products that could promote the baby?s emotional and neurological development, and to facilitate parental bonding. The products designed in this project has a theoretical basis on the research available today on cognitive and emotional development in children born prematurely. They were developed in close cooperation with a group of parents and nurses in a neonatal intensive care unit.Presence is a product collection for developmental care, consisting of a mattress, a figure and a necklace. The mattress has vibration sensors that transfer the mother?s heart beat and speakers with recorded heartbeat and her voice.
Statusbedömning av asynkronmotorer
Induction motors, often referred to as the workhorse of the industry, play an important role in production today. Therefore, it's important to diagnose any faulty induction motor prior to failure to avoid costly and time consuming production stops.This thesis compares methods for diagnosing induction motors in operation, MCSA, Park's vector approach and the standard method used by Swedish industries today. By simulating broken rotor bars and short-circuit in one of the windings, each method is tested and the results are compared using matlab.The results need further verification due to uncertainties of the condition of the test motor, even though the experiment gives a hint of the different advantages of each method. A combination of the methods should be able to tell if the motor needs further examination..
Reflekterande eller reproducerande matematik : en jämförande studie mellan två undervisningsmetoder i matematik, det laborativa och det traditionella
In each classroom there is a teacher with good intentions wanting what´s best for their pupils. But grades and tests in mathematics from 2009 in Sweden shows there is a crack between the subject being taught and the learning child. The purpose with this research is to find an understanding from a teaching and learning perspective of which teaching method is more suitable for teaching and learning mathematics by doing a comparison between two methods. The main question is:What are the advantages and disadvantages of the traditional and the laboratory method of teaching, supported by the two keywords teaching method and learning?This C-paper is based on a qualitative research aiming to gather an in-depth understanding of human behavior.
Jämförelse mellan MultiScat och konventionell beräkning av intensiteter till koncentrationer vid analys med röntgenflourescensspektrometri
In this master thesis work, a new method called MultiScat, is compared with the conventional method with alfa-correction, for computing concentrations from intensities in X-ray spectrometric analysis. The conventional model is a linear model, which only takes the photoelectric effect into consideration. It doesn't consider Rayleigh and Compton scattering even though it has a great impact on the measured intensities. Here MultiScat differs a lot. MultiScat is based on a solution of the Boltzmann transport equation.
Under ytan : Tapetmönster som kommenterar människans inverkan på naturen
Människan har i alla tider avbildat naturen, något som även gäller inommönsterformgivning. I detta arbete kommer jag att jobba inom denna traditionoch samtidigt undersöka hur man kan skildra naturen med ett mer kritisktperspektiv. Ser naturen verkligen ut så som den skildras i mönster idag?Jag har formgivit kritiska mönster för tapeter som kommenterarmänniskans inverkan på naturen. Syftet är att via mönster uppmärksammaoch skapa eftertanke kring hur vi påverkar naturen och även ifrågasätta denidealiserade skildringen av naturen som är rådande inom mönsterformgivning.Critical design, dvs.
Förväntningar och erfarenheter kring skolledarskap : en jämförande studie ur lärarperspektiv
Background: There have been several reforms within the Swedish educational system since the 1960´s, not only within the elementary school but also within the teachers? education and the school leaders´ educational program.Aim: My aim with this study is to explore if teachers´ expectations and experiences of school leadership have changed since the many educational reforms began in the 1960´s.Method: For this study I have a used a comparative design. By making qualitative interviews with five teachers born in the 1940´s and five teachers born in the 1980´s I have then analyzed the result.Result: Regardless of the 40 years of age difference and the multiple reforms within the educational system in Sweden the result shows that the teachers in this study did not have any clear expectations on their school leaders as they started their careers..
Design av FPGA-baserad PCM-till-PWM-modulator för klass D-audioförstärkare
I detta examensarbete har metoder för design av en FPGA-baserad PCM-till-PWM-modulator för klass D-audioförstärkare testats och utvärderats. Rapporten diskuterar med stöd av matematisk analys och simuleringar interpoleringsmetoder, pulsbreddsmodulering, samplingsprocesser och sigma-delta-modulatorer. Den föreslagna designen bygger på uppsampling, förkompensering, brusformning och pulsbreddsmodulering. Designens prestanda har verifierats genom simulering av modell och implementering i hårdvara. .
Oregistrerad gemenskapsformgivning - Svaret på problemen med formskydd för modeprodukter?
In the year of 2002 a new council regulation on community designs was implemented. In the beginning of the essay the legal situtation before the implementation is investigated and part of the purpose is to evaluate if it constitutes a solution to the problems with protection of fashion designs that existed then. Because fashion designs more or less were excluded from protection during the period before the implementation the fashion business developed a habit of unauthorized reproduction. This attitude among the market players is a central point of the essay. The essay starts off with a review of the earlier lack of possibilities regarding the protection of fashion designs.
A comparison of methods to assess site index in young Norway spruce stands
This study investigates whether the site index curve method (SICM) and the growth intercept method (GIM) can be used for site index predictions in younger Norway spruce (Picea abies (L.) Karst.) stands than recommended by current guidelines. For SICM it was thus investigated whether the method could be used for stands younger than ten years, and for GIM it was tested whether a starting point for the intercept measurements could be used below the recommended
2.5 meter. This was tested based on measurements taken from experimental stands in Tönnersjöheden Research Forest.
For GIM it was found that the method can only be used when the TH-trees of a stand have five complete intercepts above 2.5 meters. For the method to be applicable beyond this, it will be necessary to adapt the underlying equations, perhaps following the Canadian example where a 1.3 meter intercept start is used. In conclusion it is not currently possible to apply the approach beyond the current recommendations.
For SICM, SI predictions are accurate for the study area already form year three.
Retargeting : När annonsering bygger lojalitet
ABSTRACT Title: Retargeting- When display advertising builds loyalty Authors: Mikaela Johansson och Anna Svensson Kjällberg Advisor: Thomas Helgesson Level: Bachelor´s in thesis in Marketing, (15 Swedish credits) Spring 2014. Keywords: Retargeting, branding Question: In branding, how should small e-enterprises work with retargeting? Purpose: The purpose with this essay was to identify how retargeting should be used in small e-enterprises when branding. This was done by comparing two e-enterprises practical use of retargeting, with two brand consultants and two retargeting consultants theoretical knowledge within each expertise. Method: A qualitative method with a deductive approach has been used to answer the problem statement. Theoretical framework: Earlier theories about retargeting, brand building and recommended practices, related to marketing on the internet, were presented in the frame of reference. Empirical framework: Primary data were presented by two respondents representing each area: Companies, Retargeting consultants and Brand consultants.Conclusion: The marketing tool allows companies and their brands to get the chance to appear in wide area networks on the internet. The tool is primary used for a sales purpose but the tool also has potential in brand- building purposes.
Estimering av GPS pålitlighet och GPS/INS fusion
The global Positioning System (GPS) provides location and time information as long as there are unobstructed lines of sight to four or more GPS satellites. However, when this is not the case the signal may be inaccurate or sometimes even completely blocked. In these situations the Inertial Navigation System (INS) is an appropriate choice for positioning. An INS has already been proposed in a previous thesis by Erik Andersson and the objective of this thesis is to fuse the GPS with the INS in a proper way. A part of this project is to decide the reliability of the GPS.Three methods for GPS reliability detection have been proposed. One method based on the statistical properties of each of the separate systems, and two methods based on the statistical properties of the residuals between the GPS and INS.
Förpackningsframställning för skönhetsvård
This degree project was intendet to construct and design packaging for beauty care. At the requestof AssiDomän Frövi the project group were instructed to innovate creative packagesmade of their cardboard Frövi Bright.Three different packages have been developed. Two of them are for child care products and onepackage is for several bath products. These results show that there are possibilities to create creativeand different packages of the cardboard Frövi Bright.The report also enters deeply into the special qualities of Frövi Bright and studies of packagingdesign..
Utveckling av metoder att mäta centrering av skruvhål i skär
There have been, in some rare cases, difficulties with clamping of inserts with U-holesin their tool holder. According to the complaints, the inserts could not be properlyclamped or could fracture when clamped. A study has shown that variations inclamping behaviour are mainly depending by the position of the screw hole in the toolholder and the centering of the screw hole in the insert.The focus of this project has been the centering of screw hole in insert. It has beenshown that the screw holes are not always enough centered in the insert. Theproblem may occur after a certain step in the production, i.e.