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2569 Uppsatser om Construction site - Sida 25 av 172
Datorstödd konstruktion och analys av skyddsbur : Hållfasthet och konstruktion
In motorsports competition, safety reasons require that the vehicle is equipped with some form of protective roll cage. The roll cage should withstand the forces involved in a collision to protect the driver and the co-driver from the vehicle body deformation. The roll cage also works to protect the vehicle from excessive deformations to more easily make any repairs afterwards. For the roll cage to be certified and approved for motorsports competition, it requires that the cage is built after one of the recommended options. One of those options is to design the roll cage like a cross-construction at the driver and co-driver doors.
Peabs arbetsberedning i produktionen : Finns det en koppling mellan arbetsberedning och Lean construction?
Statistik har visat att byggbranschens byggnationskostnader i Sverige har ökat de senaste åren. Dessa kostnader beror enligt Josephson & Saukkorippi på kvalitetsproblem och kostnader för omprojektering, samt att det i nuläget görs aktiviteter som inte tillför något kundvärde. Ett arbetsmoment som idag är en viktig del hos många byggföretag är arbetsberedning. Syftet med arbetsberedningen är att hitta den optimala metoden att utföra ett moment på. Grunden till uppslaget är att Peab anser att det råder brister i deras nuvarande arbetsberedning. Intervjuer och enkätundersökning har gjorts för att kartlägga eventuella brister i Peabs arbetsberedning samt deras synsätt på Lean..
Social bokmärkeshantering på webben ? en översikt över webbplatser med användardefinierad taggning
The aim of this thesis is to examine collaborative tagging as a potential asset to libraries by a review of 10 social bookmarking sites and their features, and a discussion of these features? possible use when the environment changes from the web to a library. Previous research on collaborative tagging is presented, as well as overviews of social bookmarking, folksonomies and the concept of Web 2.0 and Library 2.0. The study itself is presented as a walkthrough of common features and how they work, followed by a schematic overview of which sites have which features. Finally each site is presented in a more detailed manner.
Effektiv byggproduktion
This report aims to suggest recommendations that will increase the efficien¬cy in theconstruction process of a construction project. Through interviews, studies of budgetcalculations and examples given by the project management at the construction sightsan understanding of some complications have been gained. These complications havebeen tracked back in an attempt to find the source of the problem, and at the end ofthe report some suggestions have been presented with the pur-pose of preventingthese complications. Through the interviews it is suggested that many complications re-late to lack ofcommunication and motivation due to poor planning be-fore and during theconstruction process, a suggestion that is supported by the study of the budgetcalculations. The examples from the project management also points out someshortages in planning, but also coordi-nation related complications due to lack ofcommunication. To prevent these problems the recommendations suggested at the end of thisreport aims to improve the planning process through a properly fulfilledwalkthrough-planning of all of the construction activi¬ties during the time needed todo so. It is also suggested that the company uses experience from previous projects inorder to reduce costs, and that the qualifications of the employees is being appliedwhere it is needed.
Responsive web design : En studie i hur designkonceptet påverkar användbarheten hos en webbplats
The main topic of this thesis is to evaluate the impact on the usability of web pages when using responsive web design, a concept for developing web pages whose design adapts to the screen size being used. This is done by creating a responsive prototype based on an existing web site. A number of usability tests are conducted on the two versions of the site in order to compare the time to complete the tests and to observe the behaviour of the test participants. The tests are conducted on desktop as well as on mobile devices with varying screen size.The number of test participants was relatively low, and so the quantitative result is not statistically valid. However, the conclusion is that the most effective combination is to use either of the sites on desktop format.
Erosionsskydd i strandzoner :
Erosion in coastal areas is a common problem all around the world. The range of the problem depends on several factors, i.e. type of bed-rock and soil, wind and wave climate. Another factor is whether the area is of high interest, i.e. if the area is important for tourism and recreation, if there are houses and other buildings close to the shoreline or if it is a site of special scientific interest.
Konstruktion och design av hjul
The task given to us was to develop an industrial wheel with new thinking in terms of fresh design and construction, with the ability to brake. While the produced wheels of today only own the property of total braking, a wish was made to integrate the ability of directional locking.The time spent working with the project has been filled with multiple sketches of ideas and function analysis.Choices of material and ways of construction have been verified by calculations, tests and prototype building. The goal of this thesis has been to develop a unique caster with well thought-out design that would be adaptable to different areas of applications.The result was a hubless wheel with the ability of directional locking before total braking.A prototype of the wheel has been made to show the design and functions..
Förekomst av meticillinresistenta Staphylococcus spp. på kirurgiskt behandlade hundar
Surgical site infections are a recurrent problem in veterinary medicine. A 2-5 % infection rate in clean surgery has been reported. During the last years the increase in methicillin resistant staphylococci has also taken its toll on veterinary medicine, demanding a stricter hygiene and antibiotic regime. The 2008 outbreak of methicillin resistant Staphylococcus aureus (MRSA) at the University animal hospital, Swedish University of Agriculture indicated that that the MRSA problem was now a real, possibly zoonotic problem.Since the first dog, in Sweden, was diagnosed as a carrier of methicillin resistant Staphylococcus pseudintermedius (MRSP) in a study in 2006, the infection rate by this bacterium has increased. In 2009 (January 1st - December 2nd) the National Veterinary Institute (SVA) has identified 58 samples as MRSP positive.
Vattenvård vid slutavverkning : före och efter vattenvårdsutbildning på Stora Enso Skog, distrikt Siljan
In 2006, Stora Enso Skog implemented an education program in water management for
harvester operators, timber purchasers, cut block planners and supervisors. The focus of the
program was creating stream crossings with minimal harm to the stream and the surrounding
riparian area. This main purpose of this study was to determine the difference in work
procedures before and after participating in the program. The methodology consisted of field
studies and interviews with harvester operators and their supervisors.
The field study looked at how the streams had been crossed concerning the number of
crossings, visible damage to the stream and/or the riparian area made by the machines.
Biological parameters such as the width and dept of the stream and amount of large woody
debris in the stream were also measured.
The field result from 30 harvesting sites showed no significant difference between sites that
had been harvested before or after the education program. But the harvester operators and
their supervisors experienced an increased concern for watersheds after the educational
program.
Alternativa förpackningsmaterial och konstruktioner för »Hackman tools«-serien
Choosing a new plastic material for a container includes several different steps. In this case,the Finnish company Hackman needed a new type of packaging material for theircutlery- and kitchentool series »Hackman tools«. The project was carried out in cooperationwith the design agency Ytterborn & Fuentes, which has Hackman as a client.Several different demands were put on the material in order to fulfill as many of the clientswishes as possible. The most urgent problem with the existing container was the difficultysfor the customer to clearly see the contents in the container. Because of this problemthe customer tried to open the container in the shop.
Naturvårdsrestriktioners effekter på brukandet av ädellövskogen i Skåne :
Restrictions in nature conservations are increasing the influence of forest management. Nobel broadleaved forests are more influenced than other forests, because they are considered to be more valuable than other forest types in Skåne. There has been a lack of knowledge about the amount that is set-aside for nature conservation and what types of forest that is concerned.
These are the main questions to be answered in this thesis. Moreover has the timber quality been compared between set-aside and non-set-aside areas since it affect the financial conditions for the forestry in nobel broadleved forests. The last asked question deals with the financial consequences of set-aside.
Objektet i platsen, platsen i objektet
Hur kan samspelet mellan objekt och plats se ut och vad kan det kallas? Genom litteraturstudier och observationer undersöks samspelet mellan konstverk och allmänt tillgänglig plats. De objekt som undersöks är konstverk i tre olika miljöer; en stadsmiljö, en naturmiljö och en park, vilken kan ses som en blandning av de två förstnämnda. Syftet med är att genom litteraturstudier och observationer undersöka samspelet mellan dessa tre konstobjekt och platser och på så sätt försöka utröna om ett konstnärligt förhållningsätt kan appliceras i platsskapandet även inom landskapsarkitekturen. Dessutom diskuteras om enskilda objekt kan väcka medvetenhet om en plats och stärka platsens identitet.
Återväxt av blåbär (Vaccinium myrtillus L.) efter ångbehandling : orsaker till effektiv kontroll
Steam was used as a site preparation method to eliminate unwanted bilberry (Vaccinium myrtillus L.) in the boreal forest. The efficiency of steam to suppress bilberry was compared with prescribed burning and cutting the bilberry. Different combinations of steaming and/or cutting the bilberry were set up to investigate in which way steaming and cutting influenced the sprouting and regrowth of bilberry. The regrowth of the bilberry vegetation was monitored for 40 month. Steam was most efficient in suppressing bilberry.
Effektivare hantering av foderspannmål : en fallstudie
The purpose with this work was to investigate some alternatives for an effective handling with grain, to find the most economic alternative.
It is not common that moisture content is below 14% when harvesting grain in Sweden. To store the grain safe it has to be preserved in some way. I have described some of the most common systems for preserving grain in this paper. I have used the systems as a basis when I made calculations in handling the grain for a company.
I have chosen a company placed in south of Sweden. The productions are crop farming and pork.
Konstruktion av ränndalskap CPD08
Our Bachelor?s Thesies has been performed in co-operation with Cellplast Direkt AB inLaholm. Our task was to develop a construction that cuts gussets to ceiling disposition as isused to isolation.Our goal with our construction was to increase the degree of automation so that theproductivity increased and also meet the market which is getting tougher and tougher due tothe future business cycle.Cellplast Direkt gave us free hands in order to enable new ideas. A pair different principleproposal was developed and prepared to a final structure.The Bachelor?s Thesies resulted in one PLC - governed machine with three engines that runthree different moves, wich does that the degree of automation increases and the risk forerrors decreases.We have developed a complete production bases to Cellplast Direkt and our hope is that thecompany comes to produce the machine in the future..