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2129 Uppsatser om Mechanical construction - Sida 33 av 142
Effektivisering av ritningshantering med hjälp av programmet DDR - Databas för Detaljer och Ritningar
Att spara tid och resurser är något som är av stor vikt i dagens byggbransch. Ju snabbare ett arbete utförs desto mer pengar tjänar företaget. I detta examensarbete har författarna tittat på effektivisering av ritningshanteringen i olika delar av byggbranschen. Att kunna hitta bland ritningarna på ett enklare sätt och att slippa sortera ut gamla ritningar när nya kommer in, är något som skulle förenkla ritningshanteringen och snabba upp tempot.Författarna har tittat på programmet DDR ? Databas för Detaljer och Ritningar, som de anser kan förenkla ritningshanteringen.
Det energisnåla isoleringsmaterialet
This bachelor essay is divided into two parts, the first being a construction of a single-familyhouse and the second an in-depth study of five different isolation materials, analysed from anenergy perspective.The first part, the construction of the single-family house, has been created from knowledgeacquired during three years of studying at KTH Royal institute of Technology in Stockholm, inthe program Architecture and the Built Environment. The constructed house is a one-floorhouse of 137m2with façade plaster, situated in Borlänge, Sweden. The house has a wooden framewhich is built on a on sight cast concrete foundation, on the ground. The house?s roof is a gableroof, which has an angle of 24 degrees.
Broms- och styrsystem för möbeljalusier
This report is the result of a master thesis at the Department of Mechanical Engineering, Division of Industrial and Economical Development, at Linköping University of Technology. The project was carried out on behalf of Fanerami AB, Mjölby and includes 20 weeks of full time schedule work.Cabinets with vertical mounted roller shutters all share the same problem, namely weight balancing. A roller shutter has an equilibrium area where the sum of the different forces acting on the shutter equals zero. As the shutter leaves that area it will pick up speed as it falls towards the bottom. When the shutter hits the bottom of the cabinet there is a potential risk of getting fingers caught and in this project a solution to prevent this from happening was to be presented.In this project, three concepts have been generated with the following different purposes:?In concept 1 the risk of getting any fingers caught when the shutter closes was to be eliminated in an efficient and inexpensive way.?In concept 2 the roller shutter had to be balanced at all time providing the possibility to keep the cabinet open in any position.?The last and most challenging task was to create a remote controlled TV cabinet.
Konstruktionen av företagare som diskursiva subjekt : en diskursanalytisk studie av hur kvinnor och män representeras som företagare i tidningen Eget Företag
Given the possibility that the world, as we know it, is a consequence of human interaction and verbal communication our understanding of the world can be seen as contingent rather than essentially given. Conceptions such as "entrepreneur", "woman" and "man" can then be understood as socially constructed subjects. Departing from poststructural and social constructionist perspectives I will examine medial representation of women and men as entrepreneurs. My main purpose is to examine how the entrepreneur is constructed as a discursive subject in the journal Eget Företag. Drawing upon Ernesto Laclau´s and Chantal Mouffe´s Discourse Theory and the poststructuralist feminist theoretical perspective of Judith Butler I will discuss both the construction of the entrepreneur as well as the more explicit question; is gender significant for the construction of the entrepreneur and entrepreneurship in Eget Företag? In this study I come to the conclusion that the discourse of entrepreneurship, as well as the journalistic discourse, draws upon discourses of femininity and masculinity but also upon discourses of ethnicity.
En kvalitativ studie om hur chefer i socialt arbete ser på sitt ledarskap
The aim of this study was; from a group of boys and girls description and interpretation of interaction with other young people, personnel and the environment of the youth centre illuminate how the social gender are constructed and maintained at the youth centre. In this study we have tried to analyse the phenomena from an intersectionalistic perspective. Except gender, the analytic category social class have been tried to capture. Our theoretical standing point is social constructivism. Institutionalized structures in our society are constructed by humans, gender is not only a biological construction it is also a man created construction.
Problemrepresentationen av arbetslöshet och arbetslösa : En diskursanalys om problematiseringen av arbetslöshet och arbetslösa i nationella policydokument åren 1979/80 och 2006/07
This essay is about the problematization of uneployment and unemployed in national policy documents of the years 1979 and 2007. The purpose of this essay is to illustrate and analyze the problematization of unemployment as a construction. My overall aim is investigating how the unemployed and unemployment are represented and constructed in the Swedish political debate the years of 1979/80 and 2006/07 by analyzing national policy document. The analysis will consist of questions about the problemrepresentaion made by unemployment and the unemployed, the assumptions behind this problematization and what kind of impact it could generate for the unemployed. In this way, the study aims to investigate the changes that may have occurred in how unemployment is problematized in the Swedish policy documents and highlight citizenship conditions on the basis of labor market policy.
Styrdokument för kontorsbyggnation ur ett ekologiskt hållbarhetsperspektiv : Aspekter och argument
The construction and real estate industry represents a significant part of Sweden's total impact on the environment and mainly affects the following national environmental objectives: reduced climate impact, a good built environment and a non-toxic environment. By establishing internal rules, companies within the industry can reduce their environmental impact. SMT (AB Sandvik Materials Technology), a part of the industrial group Sandvik AB, has set a target that during 2014 develop a guiding document with special consider to the environmental impact during construction of office buildings, that they establish at the Swedish regional capital Sandviken, for both internal and external tenants. This study therefore aims to clarify which environmental aspects that the construction and real estate sector mainly are responsible for, and therefore should be part of a guiding document for a company for establishing office buildings, and to present arguments regarding the use of such a document. The study is based on literature studies and personal contact with other companies, in the form of e-mail conversations and a telephone interview.
Quadrotor UAV : Konstruktion och användbarhetsstudie av en UAV i sensornätverk
Quadrotor UAVs are self-stabilizing, autonomous flying machines that has recently become more popular than ever. Unmanned Aerial Vehicles have their roots in the military, where they were developed for use in reconnaissance and combat. During the last few years, advances in the fields of electronic sensors, electric motors and microcontrollers have enabled smaller designs and autonomic flight control even for private use. The quadrotor, which is the particular kind of UAV we are looking closer at in this paper, has 4 rotors in an X-like formation. This configuration has many advantages such as good lift capacity, non-complex mechanical structure and serviceability.In this project we aquired a current overview of the domain and determine whether it is possible to construct a quadrotor UAV designed for use in a WISENET sensor network on a low budget and short time schedule.Based on existing community project AeroQuad, a quadrotor is constructed with a budget of about 500 euro.
Utveckling i Java av ett pedagogiskt spel i kvantfysik
The game QuantoJump is developed in the programming language Java to be an educational game in quantum physics. By illustrating quantum mechanical laws of electron transitions with shapes and colours, QuantoJump hopes to spark interest and create a more intuitive understanding of quantum physics. The result is a game where the player plays as an electron in the outermost shell of an atom, with the goal of getting to the innermost shell. This while not making forbidden jumps by following the laws of electron transitions dictated by quantum physics. The programming of the game was done in the integrated develpoment environment Eclipse.
Upplevelser av att leva med medicinsk teknik
The purpose of doing this essay was to illustrate how people living with chronic disease, dependent on medical technology experience their life situation. The study includes people with either dialysis therapy, mechanical ventilator or chronic oxygen therapy. A meta-synthesis was used as a method where a systematically review of studies that are made in a given issue compiles. Findings of the studies resulted in a synthesis of three themes: Limitations in life as a consequence of life-long treatment, to take responsibility for your life provide self-esteem and safeness, and to be cared for in different contexts ?help or prohibit.
Lean Construction i teori och praktik
Höga byggkostnader, kvalitetsproblem, dyra kostnader för omprojektering och
låg lönsamhet för entreprenörer är exempel på problem inom byggbranschen.
Statistik pekar på att byggkostnaderna för att producera byggnader har
stigit kraftigt under de senaste åren. Byggnadsentreprenörer har börjat
utveckla alternativa metoder för att genomföra kostnadseffektiva projekt.
Denna studie kan delas upp i två delar, en teoretisk och en empirisk del.
Den teoretiska delen utgörs av litteraturstudier för att få djupare kunskap
och förståelse om Lean konceptet. Den andra delen avser en empirisk studie.
Grönskande balkongkonstruktioner : Jämförande arkivstudie av balkongkonstruktioner anpassade för urban odling
Urban agriculture is a current topic and this study examines the possibility of cultivating on balconies in the city. The study was performed at Uppsala University and examines, from a structural engineering perspective, how different existing balcony/terrace structures are affected by cultivation. A cultivation balcony defined in the study as a balcony/terrace which is specifically designed for cultivation. Three units of study have been selected according to this criterion. Four factors were examined, these were loads, moisture/water, economy and cultivation.
Väderstation
We got in contact with Marco AB, who we?ve had contact with before concerning earlier projects, to find out if they were interested in arranging a larger project for our last class (Examensarbete 15hp). They were very positive to this proposition, and soon they offered us a project regarding reconstruction of their current mechanical device that absorbs all the force from the lift itself when it is at a predefined level (sv. sjunkspärr). The current solution does fulfill the requirements that are given, however it is not a solution that gives a high level of satisfactory.
Uppvärmningssystem - En analys av valmöjligheter för småhus
When constructing a new house many questions appear, from architecture to decisions regarding installations. Sweden is situated in a cold part of the planet and questions regarding which heating system to install face everyone who decides to build a new house. This thesis describes a construction solution of a villa in Kiruna. The extended essay analyzes which heating system is most suitable for the construction. The options are geothermal, district and pellet heating systems.
Torkning och pelletering av organiskt hushållsavfall - en konstruktionslösning
The research in this paper aims to producing a home version machine thatcan dry and make biological waste into compact pellets. This product ismade primarily for those who want to improve the environment and reducethe energy consuming process of separating the biological leftovers fromother waste in the large processing plants and save money due to reducedpickups of waste. Since there is no commercially available product thatdoes what we want to achieve we had to start from the beginning with boththe design and the mechanical aspects. The result is a machine, that fits inour homes, and in an easy and inexpensive way reduces the amount ofbiological waste that needs to be collected by the public wastetransportation system. This is done without reducing any of the energy inthe waste and it can still be used to compost or by large-scale plants that usethe waste to make electricity.