Sök:

Sökresultat:

773 Uppsatser om Slab-frame bridge - Sida 11 av 52

Utveckling av stol för café och lunchrum

This is a dissertation for a Bachelor Degree Project at the University of Skövde. The project is carried out in cooperation with the company Kinnarps AB.The objective of this project was to develop a new chair for café and lunch rooms, which should satisfy the markets expectations and demands and match Kinnarps AB?s assortment today. The project has contained everything from identification of user and customer needs and requirements to evaluation and building of a prototype.The result is a chair with a frame of tubular steel and there is nothing like it in Kinnarps AB?s assortment today.

Japansk 2D grafisk animation : uppkomst och influenser

In 1896, a French cinema pioneer named George Méliès demonstrated that an object could be set to motion by changing the objects shape or movement frame by frame. But it was not until the early 1900s that this specific genre of filmmaking became a great success. The animations were essentially short and were animated and published in The United States of America. The interest in animated movies began to increase, not only in the west, but also in Europe and Asia. The art of animation grew especially popular in Japan, and emerged as a parallel to Japanese comic books known more commonly as Manga.The history of Japanese animation is not as commonly known as the history of American animation.

Cykelparkering i stadsmiljö : en redogörelse för cykelparkeringens komponenter

In recent years many cities have seen an increase in bicycle traffic. This is a development that benefits both the environment and the individual cyclist. When the need for bicycle parking is not met several problems arise such as an increase in bicycle thefts, jammed sidewalks and a decreased interest in using bicycles. My aim with this paper has been to answer the question of how to create parking facilities in an urban environment based on cyclists' needs. Through a literature survey, following the method "Trattmodellen" (the funnel model) the question has been answered and divided under the headings cyclist, bike, bicycle racks, bicycle garage and bicycle operators and hosts.

Läraren - från ensamvarg till lagarbetare? : En studie av hur lärarrollen har definierats och förändrats i grundskolans läroplaner från 1962 till 2011.

Forming teacher teams is currently the standard way of organizing teachers in Swedish Compulsory Schools. This is the result of a process that started in the 1970s.Traditionally the culture of teaching has been one of isolation. Once the door to the classroom is shut, what happens behind the door is up to the teacher to decide. Over the past thirty years a lot of time has been dedicated to making fundamental changes in the way teachers interact with their colleagues. Today the idea of teachers forming teams is generally accepted but still the core of a Swedish teacher?s job is that of a lone worker.

Flexibla fixturer i bearbetande maskiner

This thesis was conducted at Linköping University and Saab Aerostructures DPS, Linköping, and focuses on the possibilities of flexible fixturing in machining applications. The thesis is part of the research project "Koofix", which is collaboration between Linköping University and a number of companies.The thesis is aimed towards small batch production which, for Saab Aerostructures DPS, means diverse part geometry and that parts are manufactured in very small numbers, sometimes just one piece. The result of this is that expensive dedicated fixtures are made for most parts. By introducing more flexible fixturing methods to this kind of production the cost of fixtures and tooling will be reduced, and make the production more efficient.New flexible fixturing methods has been presented and evaluated through the thesis, which has resulted in three different concepts. These concepts have been the result of literature screening and study of current manufacturing process at Saab Aerostructures DPS.

Att dela ett bostadshus eller kommunikationen till staden

Detta projekt handlar om hur vi kan bo nära varandra i en stad och samtidigt ha tydliga gränser kring de ytor vi delar. Var möts vi i staden? Var är vi tillsammans i bostaden? När övergår den privata sfären till gemensam?Kommunikationen i dagens bostadshus har reducerats till minsta möjliga vilket helt tar över dess utformning. Att istället se denna som en social yta har potential att skapa ett levande atmosfär där mer privata funktioner delas med kommunikationen. Delandet handlar också om de saker vi har i hemmet, är delning av kökmaskiner och städredskap ett möjligt sätt att spara energi? Hur kan vi bygga för att främja detta?I processen har jag försökt definiera vad som skapar ett attraktivt boende i stadskontext och se hur detta går att applicera i morgondagens Stockholm.

Konstruktion av PID-reglerad motorstyrning

Denna högskoleavhandling beskriver konstruktionen av ett system vars funktion är att PID-reglera ett linjärställdon kopplad till venturi. Syftet har varit att få fram en reglering på venturin så att förutsättningarna förblir desamma vid mätning av olika temperaturer och lufttryck i en testrigg. Denna testrigg används för att utveckla produkten Varivent som används för att uppfylla högre miljökrav på förbränningsmotorer.I arbetet beskriver jag de olika krav som funnits för att bygga det nya systemet, dessa var ingångar, utgångar, mikroprocessor, reglering,kommunikation samt övriga krav. Jag diskuterar de svårigheter och möjligheter som är förknippade med kraven och tar även upp de komponenter jag använt samt deras egenskaper. Det svåraste momentet har varit PID-regulatorn som både varit en viktig och en svårlöslig del i konstruktionen av systemet.

Alarm på bryggan : trygghet och irritation

Arbetet på fartygsbryggor består till en stor del av kontrolluppgifter. Operatörerna, bryggteamet, har därför kontroll-  och alarmsystem till förfogande. Samspelet mellan människa och system beror delvis på användarens kunskaper och erfarenheter och delvis på bryggdesign och teknikens användarvänlighet. Arbetets ämne är hanteringen av alarm och alarmsystem på fartygsbryggor.  Syftet  var att  undersöka om det finns strategier för detta och i så fall att belysa hur dessa strategier ser ut. Därför undersöktes sju styrmäns erfarenheter med kvalitativa metoder, med halvstrukturerade intervjuer och med innehållsanalys.

Mätsystem för effektförluster i en högfrekvenstransformator

To measure losses in a transformer with today?s methods is either slow or insecure. There s a new method developed by Alstom that hasn't been actualize in to a test-system and that has been the assignment in this project. The idea is built on a switched system and a CLR- circuit in the resonant frequency. The test-system has a calculated power-loss that make the efficiency to be as high as 99,8% and in reality over 95%.

Klimakteriet. En litteraturstudie om upplevelser av klimakteriet hos kvinnor med olika kulturell bakgrund.

The aim of this study was to illuminate the experience of climacteric in women with different culture backgrounds. The method was a literature review. Results are made of nine scientific articles. Sex main themes come out. The results are showing that the experience of climacteric is varying from woman to woman and from culture to culture.

PLA som metod för detektion av bornavirusinfektion hos katt

A method for intra vitam detection of bornaviral infection and diagnosis of bornaviral dis-ease in the cat is currently lacking. The aim of this work was to explore the possibility of using the proximity ligation assay (PLA), with its capacity of recognizing femtomolar con-centrations of a protein, as a method for detection of the minute quantities of antigen and antibodies that are present in the tissues and body fluids of a bornaviraly infected cat. For this purpose reliable comparative assays, in the form of an ELISA and an IFA, had to be established. When this proved impossible within the time frame of the project, the aim of the study had to be abandoned, further underscoring the need for improved means of detec-tion of bornaviral antibodies and antigen..

AIS i havets och tankens strömmar : En etnografisk studie av nautikers användning av transpondersystemet AIS

An ethnographic study loosely informed by the theoretical framework of distributed cognition was carried out in order to describe how mariners have adopted the Automatic Identification System (AIS) in their work practice, or"made the technology their own". AIS is a transponder-based identification and communication system that allows ships to automatically identify and track each other. In addition to facilitating the identification and tracking of ships, objectives behind the introduction of AIS are to"simplify informational exchange", and"provide additional information to assist situation awareness". Participant observation and interviews were made at four different ships, as well as at two shore stations. A focus group was also held at a maritime conference.

Skadeutredning och glidningskontroll av järnvägsbro 3500-3424-1 : En underbyggnad på villovägar

Trafikverket förfogar över närmare 4000 järnvägsbroar i olika skick och ålder runt om i landet. Beståndet är i ständigt behov av underhåll och erfordrar kontinuerliga kontroller. Den här rapporten är utformad som en skadeutredning på en enkelspårig järnvägsbro söder om Solvarbo i Säter kommun. Järnvägsbron är i drift och här passerar över 10 000 tåg/år. Allt från snabbtåg till godståg.

Uttorkningsmöjligheter i ett fuktskadat badrum med hjälp av spaltmetoden

Buildings today are built to maintain a healthy indoor environment and an efficient energy usage which is probably why damages caused by dampness has increased since the 1960?s.A study between year 2008 and 2010 showed that 26 percent of the 110 000 examined houses had damages and flaws caused by dampness that could prove to be harmful later on. This means that one out of four bathrooms risk the chance to develop damages by dampness. Approximately 2 percent of the houses had already developed water damages. It is here where the problems appear.

Översättare eller särskiljare? -elevers syn på att ha elevassistent i grundskolan

In all times school has defined and categorized pupils from a hypothetical normality. The National Agency for Education is today critical to how the municipalities provide for the necessity of special support for pupils with difficulties in school.Pupil`s assistants has been a growing profession in school during the last decade and their importance for the pupils is relatively unexplored. The aim of this study is to find out how the pupils think about having pupil`s assistant during the obligatory school on the basis of the ideas of power, knowledge, involvment and understanding. The study is based on qualitative interviews, consisting of half-structured questions, with eight pupils that have or have had pupil`s assistant during their time in senior compulsory school. The result notifies that the pupils feel powerless in school, they have no opportunity to affect and they do not think they are someone that could make any change.

<- Föregående sida 11 Nästa sida ->