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2046 Uppsatser om Natural materials - Sida 50 av 137
Metallersättning inom byggbranschen
In this paper the possibilities to replace metal with plastic in products for the building industry were looked into. The first part was a market examination where several suitable products were found. After evaluation the door latch for in-house doors was selected to be re-designed to better suit the properties of plastic.New types of mechanisms were designed with different functions that use the benefits of plastic materials. Models of these mechanisms were developed to evaluate their function. The components in the different mechanisms were adapted for manufacturing with injection moulding.To confirm that the plastic material could handle the appearing stresses calculations on the most vulnerable parts were carried out.
Naturlig haptisk kraftåterkoppling från volymdata
As the volumes are entering the world of computer graphics the pure volume visualisation becomes a more important tool in for example research and medical applications. But the advance in haptics --- force feedback from the computer --- is behind. In volume haptics no equal to the proxy method so popular in surface haptics has yet emerged. Some implementations of volume haptics even use surfaces as intermediate representations so that surface haptics can be used.The intention of this work was to create natural feeling haptic feedback from volumetric density data using pure volume haptics. The haptic algorithm would be implemented in Reachin API for the Reachin Desktop Display, together with other parts to build up a usable volume visualisation environment.To achieve the feeling of stiffness and friction dependent on tissue type, a proxy based method was developed.
Villa T - Konsten att rita åt sig själv
Som arkitekt, byggherre och brukare i en och samma person ges unika möjligheter att styra hela processen från första skiss till färdig byggnad och därigenom förverkliga ett högst personligt bud på vad ett samtida hus kan vara.Mitt examensarbete är en betraktelse av den delvis äventyrliga resan att rita och låta uppföra ett enfamiljshus i vilket man sedan flyttar in. Följande begrepp behandlas:Platsen och dess förutsättningar ur historiskt och fysiskt perspektiv.Programskrivandet; med utgångspunkt i vardagslivet nu och i drömmar om en tänkt framtid. Det unika vägt mot det generella mot bakgrund av bristen på tidigare erfarenheter av villaliv. Funktioner samt Inre och yttre rumssamband beskrivs.Gestaltning av byggnaden; dels som en tredimensionell konsekvens av programmet, dels genom konceptuella val, samt ett stort intresse för materials egenfärg och genomarbetade detaljer. En undersökning av gränssnittet mellan tradition och modernism.Upphandling, tid och ekonomi ? en översiktlig redogörelse för hur dessa frågor balanserats.Materialet består av text ritningar och fotografier..
Viktstudie av Analysinstrument : Konceptförslag för minskning av vikt
This thesis report describes the development of concepts regarding how weight can be reduced to the analytical instrument Biacore 4000. This thesis has resulted in five different concept proposals, all of which is solutions to reduce the instrument's weight.The thesis started with a pre-study where the instrument's structure and function were studied using both Solid Works, the opportunity to study the instrument in real life were also possible done. During this phase, a weight study was conducted as well, in which the instrument's weight distribution was studied and mapped.Following the initial phase, the work proceeded by developing concrete concepts to reduce the weight of the instrument where focus mainly was on the two cabinets. In addition, another two concepts were revealed, both with a more general approach.At the final phase of the thesis, the concepts were compiled and evaluated among themselves and the initial instrument.The thesis resulted in a study of the instrument's structure and weight distribution, with suggestions on how weight may be reduced for the instrument.The result factors such as materials, and manufacturing were aspects that were taken into consideration.At the final section of the report, suggestions for further work in which different aspects are discussed can be found..
FEM i praktiken : En studie i FEM-Designs användningsområden inom konstruktionsprojektering
This diploma work has been conducted for the consulting company Ramböll inUppsala, Sweden with the purpose to perform a study with the calculation programFEM Design 9.0 made by Strusoft. The aim has been to find out if it is possible to gainadvantage by utilizing more advanced 3D software for design calculations, instead ofthe traditional methods currently used in construction works.The method of approach has been to model an existing warehouse building with theprogram FEM Design, and then compare the results with those attained with FrameAnalysis and hand calculations. These results are then analyzed. An evaluation is maderegarding to what benefits can be achieved using a more advanced 3D-model.The results of the study show that the differences between the methods are not ofany significance with regard to the design of the steel frame. However in morecomplex materials such as reinforced concrete, the differences become more notable.The conclusions drawn by the authors of this study into FEM Design are that theeducation requirements of the program are higher than for simpler programs, whosepurpose are solving predetermined problems.
Hundägares och kattägares relation till sitt djur :
The relationship between the pet and it's owner is a very important and interesting
issue. Unfortunately there is not so much research on this and in addition to that
Swedish veterinarian education does not put much emphasis on pet's role in society
or their pattern of behaviour nor treatment. This thesis is based on an opinion poll
that 20 dog owners and 20 cat owners contributed. The main purpose of the thesis
was to compare the relationships that the pet (dog or cat) and its owner can have.
The issues such as the pet owner's attitude to his/her pet, how the pet owner
percieves and interprets the signals from the animal, and what they think about the
natural behaviours and needs that their pets (might) have.
The results show that dog- and cat owners are people who generally love animals,
that they used to have even other animal species in the past, but when it comes to
choice between a new dog or a new cat they choose the one that they previously
have had and that they are used to. Most of a dog owners choose the dog to be their
pet because of the company while the majority of a cat owners choose cat because
cats are independent and they are used to cats.
BIG SISTER IS WATCHING? En argumentationsanalys av den svenska debatten om ?Chat Control?
The Swedish debate regarding chat control highlights a value conflict between protecting the
safety of children and preserving democratic rights such as privacy and freedom of expression.
This thesis examines key arguments for and against the proposed EU CSAM-regulation,
analyzing them through a normative argumentation analysis method. The analysis is based on
the Swedish constitution, representing the common values of Swedish society. The study
reconstructs arguments from four debate articles and evaluate them according to their relevance
and validity, which makes up the arguments? total evidential strength.
Maktbalansen mellan mannen och kvinnan i Domarboken 19
The thesis of this essay is how literary texts are selected in the teaching of Swedish in upper secondary school, and how teachers reflect upon gender in these selections. To answer the thesis question three methods have been used. Firstly interviews were held with five teachers of Swedish, which have been the primary source for the essay. In addition to the interviews, I have examined two literary anthologies used as teaching aid in the teaching of Swedish and lastly I analyzed the literature and authors that the teachers explicitly express that they use in their tutoring. The secondary sources of this thesis contain research on selections of fictional texts, literary canon and students? re-production of gender.
Textilhantverkets betydelse i Uppåkra - en studie av Uppåkra och närliggande agrarboplatser
This survey deals with textile production and how it was carried out during the late Iron Age,with main focus on a central place, Uppåkra. A comparison has been carried out betweenUppåkra and two agrarian settlements, Fosie and V. Karaby, from the nearby landscape toinvestigate whether any variation in production can be detected. The value of textiles has alsobeen investigated to determine whether a potential specialization in production may have ledto a surplus.An analytical and comparative method has been used with focus on the context of thematerial.The results show that the textile production vary at the different sites, and that a need fordifferent types of textiles has existed. At Uppåkra, the possibility to produce fine threads andtextiles existed as demonstated by the findings of small and lightweighted spindle whorls.This suggests that the production may have included both fine and coarse textiles.
Projektstyrningurettaffärsekosystemperspektiv En fallstudie om projektstyrning inom bankgemensamma projekt
Based on last years events that have taken place, events on the school Lundbergs and the police values of work, has the meaning of having a set of values been questioned. This study aimed to investigate and answer the fundamental values based on the common value basis for the government employees within an organization and how it perceived by employees. The new institutional theory was the framework for this qualitative study conducted with semi-structured interviews. Respondents were employees within the organization. Ethnographic qualitative methodology was the basis for our methodology and we used a thematic model of theme interpretation, communication and knowledge in our analysis.
Rumslig vägledning Tandvårdscentralen, Luleå
ABSTRACTMy degree project has resulted in the improvement of the guidance in the dental center?s entrance. The patients will now find it easier to understand and find the environment?s various functions, which is the reception, registration, payment, and waiting rooms. Norrbottens läns landsting has a concept ?hälsofrämjande väntrum? that provides guidelines for how they want their patients to experience their waiting rooms.
Rörelsens generativa kraft : Den kroppsliga rörelsen som varseblivningens möjlighetsbetingelse
The standard model concerning the relationship between perception and motility is linear and one-way. It depicts the flow between the two as moving from sensation to perception to representation to computation, and finally, to motility and action. According to this model, animal being is basically a bundle of reflexes. But what can correctly be considered a bundle of reflexes from a natural science point of view, doesn't necessarily have to be true. This conception does not take into consideration the more complex interactions between motility and perception that constitutes, or generates, animal and human beings.
Flödesekonomins dimensioner : supply chain management
It is of increasing importance to in the most effective possible way, manage and control all the transactions of raw materials, products and information that are exchanged between an organization and all its operators. These flows and the need for strategy and managing the processes of planning, implementing and control of the supply chain, has given name to the concept supply chain management. Supply chain management involves all movement and storage of raw material, and all the processes that is needed to manufacture a product from origin to consumption. Globalization, technology and increasing time and quality-based competition are all driving forces behind the concept and reasons for an increasing interest in supply chain management.The purpose of this essay is to by using a qualitative case study examine which decisive success factors that can be identified for effective supply chain management. We have compiled different theories on the subject to use for analyzing a case study Li & Fung, who is a successful supply chain management company.
Utveckling av en ny tillverkningslina
This report contains results of our study at CTC in Ljungby. CTC produces heating products such as boilers, heat pumps and additional products to their heating systems.The purpose of the report is to make a proposal how CTC will supply their new production line for heat pumps with materials. The proposal includes a production layout and a scheme for how to place the material in the production storage.The new production line will produce two different products and both of them have several variants. The line will also have a mixed flow, so the products can be produced in a random order. These conditions demand that the production line has great flexibility and that the material to all the variants can be stored in the production storage.With these conditions as input we made a layout proposal to the company.
Hur påverkar byggnadsmaterial av stål en induktiv hörslingas fältstyrka samt frekvensgång?
This research analyzed differences in measurements of magnetic field strength and frequency response in five audio induction loops installed in rooms of wooden construction materials and five audio inductive loops installed in rooms of steel reinforced concrete constructions. The inductive loops were installed at floor level and the measurements were made at the listening height of 1.2m. Measurements of background noise, field strength and frequency response were made at fifteen different measurement points across the room. The research measurements showed that there are differences in field strength and frequency response between these two conditions, whether the audio induction loop is installed in a wooden construction or the audio induction loop is installed in a reinforced concrete construction. The results had a significance level of p=0,05..