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1142 Uppsatser om Sobolev space - Sida 51 av 77

Tillsats av biokol till en svensk sandjord : effekter på lustgasavgång, kväveretention och andel vattenfyllda porer

In a column experiment the effect of three different biochars on nitrous gas emissions, nitrogenretention and water filled pore space (WFPS) were studied in a Swedish sandy soil, classified as aCryopsamment. Ammonium retention was positively correlated, while KCl-extractable ammoniumwas negatively correlated, with the specific area of the biochars. The question was raised whether thenegative correlation between extractable ammonium and biochar specific area reflects the amount ofammonium present in the soil or its extractability from the biochar, and whether methods forextracting soil mineral nitrogen, like KCl-extractions, have to be modified for application on biocharamended soils. There was a tendency of increased nitrate retention and KCl-extractable nitrate withbiochar and KCl-extractable nitrate was positively correlated with the specific area of the biochar. pHwas higher for all biochars compared with control, although the differences were not significant, andWFPS was lowered by biochar addition, significantly in one case.

Framtagning av en rörväxlaretill sopsugsystem

The main goal of this project was to develop some sort of a diverter for pipestransporting waste in a vacuum system. This unit was supposed to be both cheap andeasy to serve/exchange worn out parts. With a limited space to install the pipeexchanger, the challenge was to keep it as compact as possible without constructingbends with to small radius or to sharp angles as this would wear out the system a lotfaster than planned. The system was also supposed to be able to handle clothes andscrubs from hospitals. Having too much sharp edges or angles would tear the clothesapart.

Transport av häst på land :

The aim of this review is to evaluate the best way to transport the horse. When it comes to transporting horses there are a number of different types of trailers and trucks that you can choose from today. The most common type of trailer is designed for two horses and the horses are transported facing the direction of travel. Studies has been performed to determine if that is the most advantageous direction for the horse to travel in, in terms of balance and levels of stress. Stress is a widely discussed subject and the definition is not fully developed.

Traditionella och samtida bottenbj?lklag: med fokus p? isoleringsmaterialen

The survey aims to shed light on traditional and contemporary bottom floor frames, their construction and different insulating materials; mineral wool, wood shavings and charcoal. The purpose is to analyze and discuss the similarities and differences as well as the pros and cons with a focus on the construction and the different insulating materials. The work has been limited to comparing two different wooden floor frames. The first one is based on a real floor frame from an older building, this example is presented as the traditional floor frame in this study and are from around 1940. The other floor frame is presented as a contemporary floor frame and is based on wood building type descriptions and literature.

Utvärdering av ett Bränslecellsdrivet Flygplan.

 With the increases in fuel costs due to the depletion of the world oil reserves and the increase of greenhouse gasses as a consequence to using oil as a fuel many companies are looking to new and innovative ways to power their aircraft. One of these new ways to power an aircraft is using fuel cells powered using hydrogen and oxygen, thus producing nothing but water vapour and small amounts of nitrogen dioxide as well as trace amounts of other emissions. Both Boeing (1) and Politecnico di Torino (2) have shown that it is possible to build an all-electric aircraft powered by fuel cells. Both flights used small, two-seater aircraft and a constant between them was the loss of the co-pilot seat due to weight and lack of space. As this paper will deal with a commercial aircraft a primary concern is the cargo and passenger capacity and whatever impact switching propulsion system has on these.

Överviktiga barns fysiska aktivitetsnivå

Throughout the history, the theories which have shaped our cities have varied from time to time. We have gone from a city development characterized by spontaneousness, where commerce and people side by side shared the space, into a function-based planning where people and functions are being increasingly separated. Regardless the forms of planning the city design causes implications for those who live there when the physical environment controls were we live, work and meet. In today's society where `sustainability ' has become a watchword the current community planning needs to be questioned so we, in the best possible way, can meet future changes. Searching for new planning strategies is part of this and in this essay the term `mixed-use´ will be investigated and analyzed in terms of its social aspects.

Gåpall : Ett produktkoncept

This master thesis has been a product realization process. Having BRIO:s walking cart as thestaring point the purpose was to further develop the principle of such products and at the sametime broaden their sector of use. The final result is to be regarded as a complete solutionmeant as a foundation for further development at the BRIO Company. The product aims tosatisfy the demands and needs of the target group called theon the go parent. Trends, qualityand purchase power are features that characterize this particular target group.The project resulted in a walking stool namedBRIO Circus after its source of inspiration.

Framtagning och analys av en arbetsmodell för kartläggning av användarbehov

This study began with a mission statement from the firm Tobii Technology AB to identify customer needs in the relatively new and rapidly growing market for eye tracking analysis. After consuling external experts, the authors however found that the availability of previous academic published market studies of new and fast growing markets was poor. Therefore a decision was made to execute the task and at the same time create a methadology for future studies in this area. The identification of customer needs, which formed the basis of the insights and analysis, led to frequent discussions between the authors and the firm's supervisors. This resulted in a project plan and a decision that an iterative model would be used, were earlier decisions would be questioned and refined throughout the project.

Modellen och materialet

Tycho Hedéns Väg in Uppsala has evolved from being a through fare passage and highwayto the oversized road frame running through the city it is today. At the present time, dueto the relocation of the E4 highway east of Uppsala, Tycho Hedéns road creates a barrierbetween the north eastern area of Uppsala and the remaining parts of the city centre. Theroad is designed to endure heavy traffic and high speed limits, generating a surrounding urbanarea were inhabitants are complied to follow the standards set for a high traffic-accessibleenvironment. Furthermore, the heavy traffic has led to the turning of both urban roadsidesaway from the actual road. The aim of this project and proposal is to show the possibilities ofhow the innate features of Tycho Hedéns road can be used more advantageously to mend thecity area of Uppsala.

Uppsala centrums gator : möjligheterna för stensättning

Throughout the history, the theories which have shaped our cities have varied from time to time. We have gone from a city development characterized by spontaneousness, where commerce and people side by side shared the space, into a function-based planning where people and functions are being increasingly separated. Regardless the forms of planning the city design causes implications for those who live there when the physical environment controls were we live, work and meet. In today's society where `sustainability ' has become a watchword the current community planning needs to be questioned so we, in the best possible way, can meet future changes. Searching for new planning strategies is part of this and in this essay the term `mixed-use´ will be investigated and analyzed in terms of its social aspects.

Implementeringen av Lagen om valfrihetssystem inom primärvården i Västmanlands län : -Information och styrning

Title: Older people's experiences of exercise training: a survey based on a descriptive design.Course: Public Health: Theory and method of application and degree, 30 credits. University of Gävle, health education program.Author: Helena AnderssonPurpose: According to earlier research the western population is aging. This may affect, the older peoples`s physical disability in one form or another. The consequences may be that the need off care can increase. However elderly can prevent a variety of age-related diseases by being physically active.

Kinematisk och dynamisk modellering av den haptiska enheten TAU i sex frihetsgrader

The thesis presents an optimally designed kinematic structure for a new 6-DOF haptic devicebased on TAU configuration. The configuration of the TAU-2 proposed by Suleman Khan andKjell Andersson [1] was modified and its mobility was verified by using Grübler criterion tohave a 6 DOF. Analytical kinematic models for the inverse and forward kinematics weredeveloped for the haptic TAU configuration to determine a set of optimal design parameters.Kinematic performance indices such as volume of the workspace, kinematic isotropy and payload index, were defined based on the singular values of the Jacobian matrix. The Jacobianmatrix was scaled to homogenize the physical units. The Jacobian matrix dependent on theposition and orientation of the end-effector gives local isotropy and pay load index, so globaldesign indices were defined, which represent the performance of the mechanism in the wholeworkspace.

När rummet tar plats i musiken : Om rum musik och meningsskapande i Svenska kyrkan

Elin Redin: When Space Takes Place in Music ? About Room, Music an Meaning in the Swedish ChurchSökord: musikvetenskap, musik, rum, upplevelse, Svenska kyrkan Uppsatsen tar upp relationen mellan musik och rum med utgångspunkt i Svenska kyrkan. Huvudsyftet är att undersöka hur vi upplever kyrkorum och hur det sedan kan påverka vår reception av musik som vi hör i rummet. Metoden som använts är kvalitativa intervjuer med tre organister från Växjö domkyrka och tre vana konsertbesökare. Uppsatsen behandlar kyrkorummet utifrån ett teologiskt och historiskt perspektiv.

Styrtransmission för bandfordon

The purpose of this master thesis is to construct a steering transmission, for a trackedvehicle, containing two hydraulic circuits which are connected. The steeringtransmission should be mechanical to avoid steer-by-wire.BAE Systems Hägglunds has in an earlier study examined a system with two hydraulicpumps and one hydraulic motor, but the safety of the system wasn?t sufficient.To achieve sufficient redundancy there must be two hydraulic motors, which arecontrolled separately. When the two systems are connected in one point, this point is acritical part of the system because it directly affects both circuits. If one of the hydrauliccircuits fails the other should be able to operate independently as a steeringtransmission.

Rummets betydelse för kunskapsproduktion ? en tolkning av Lunds stadsbiblioteks funktioner i ljuset av dess arkitektur

This paper aims to apply a specific architectural theory onto Lund City Library in order to achieve a better understanding of how the physical concept of the library is affecting our knowledge and our production of meaning; and furthermore how it suggests a certain form of usage. This paper discusses the ways in which architecture is affecting us when we use the library. The paper attempts to answer the following question: ? Which one of Koch?s spatial structures could apply to Lund City Library, and in which ways could this spatial structure be a producer of meaning? The specific architectonical theory used is developed by Daniel Koch in his paper Spatial Systems as Producers of Meaning: the Idea of Knowledge in Three Public Libraries. This theory is the method of the paper as well.

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