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1394 Uppsatser om Air volume flow - Sida 19 av 93
Markavvattningsföretagens geografi och konsekvenser i Trosaåns avrinningsområde
Agricultural drainage is widely used to manage the amount of water in the ground in order to improve conditions for cultivation. However the effects of drainage companies on water regimes are considerable leading to runoff changes such as altered stream flows, peak flows and water levels. In a greater extent this could imply an increased risk for floods along affected watercourses. This study analyzes the extension of agricultural drainage within the drainage basin of Trosaån in Sweden by ArcGIS mapping. In a statistical analysis, historical variation in streamflow in relation to mean precipitation and mean temperature are investigated for the study area.
Hur kan det flöda bättre? : Flow-teorin som hjälp i komponerandet och musiklivet
Syftet med det här arbetet var att gestalta fem olika känslor inom genren symphonic metal. Därigenom ville jag avgöra vilka verktyg jag kunde ha nytta av i framtiden för att gestalta känslor musikaliskt och vilka skillnader som finns mellan att gestalta olika känslor. För att göra detta använde jag mig av referenslyssning av tio låtar plus några orkestrala stycken per känsla. Resultatet av lyssningen, tillsammans med olika låtskrivningstekniker, litteratur, Kirnbergers intervallkaraktäristik och Matthesons tonartskaraktäristik, användes till att skriva och arrangera mina fem låtar. Resultatet blev att jag hade lyckats skildra känslorna bra med den metod jag hade använt, men att intervallkaraktäristiken och tonartskaraktäristiken var onödiga; det skulle räcka med mina kunskaper som jag hade förvärvat under utbildningen, referenslyssning och min känsla som låtskrivare. Jag kunde inte heller urskilja några skillnader mellan att gestalta de olika känslorna; metoden var universellt tillämplig..
LiDAR-bildanalys av flutings i södra Norrbotten : Kartering och datering av avvikande isrörelseriktningar
The aim of this study was to map and date glacial flutings with ice flows deviating from the predominating northwesterly ice flow direction in the southern part of Norrbotten County in northern Sweden, and also to investigate if parts of the glacial landscape are older than previously thought. The traditional view is that most landforms in the area were formed during the late Weichselian (W3). Analysis of the new high resolution elevation model (2 m grid) derived from laser scanning was performed after treating the data with a hillshade tool in ArcMap to reveal terrain features such as flutings. The analysis resulted in a map showing four main groups of deviating ice flows (N-S, NO-SV, SO-NV and S-N) and several westerly ice flows. The majority of flutings with deviating ice flows were found in low terrain.
Profitability of Momentum Strategies on the Nordic stock market
Purpose: The main purpose of the thesis is to examine the profitability of Momentum Strategies on the Nordic stock markets. This will provide insight and contribute to the debate on efficient markets. Finding profitable Momentum Strategies will provide strong evidence of inefficiency in the market. A secondary purpose is to examine factors which might cause or impact the profitability of the Momentum Strategy. We will look closely at the relationship between the profitability and factors such as risk (CAPM-beta), market capitalization, trading volume and seasonality.
Att färdas i symbios : ett gång -och cykelstråk anpassat efter trafikanternas rörelsemönster och behov
The aim of this paper is to examine the layout of public spaces and its effect on human behavior with focus on the relation between pedestrians and cyclists movement patterns in a specific path. The study emanates from the security aspect of pedestrians and cyclists, and builds upon previous theories and empirical studies about perception, security, information design, environmental psychology and behavior. The result shows that individual behavior and movement pattern differs with age, purpose, physical- and other conditions, and layout of the surroundings. A design proposal for improved layout of a path and a node between different oncoming paths has been developed to aid the users? needs, where a separation of walkways and bike lanes forms zones of security for the purpose of better orientation and a better flow between the users..
Förstärkning av betongkonstruktioner med kolfiber med avseende på olika brottstyper
The purpose of this report is to simplify the process of designing carbon fiber strengthening for existing concrete constructions, specifically beams. The intention has been to establish a flow chart containing information on the necessary testing and calculations for the design, to as far degree it is possible satisfy the requirements stipulated by Swedish and by extension, European authorities.To do this the report will examine a parking garage situated underground by Akademiska Sjukhuset, Uppsala. The parking garage was built in the mid-seventies, and has in recent years been subjected to a greater load than designed for by the construction of a road on top of it. FEM-Design has been used to obtain the internalforces of the beams and thereby determine whether they are in need of strengthening or not and thereafter design the strengthening according to Täljsten (2006) with some corrections from Täljsten (2011) due to new regulations.The result of this report is that the flow chart used is viable to design carbon fiber strengthening, atleast with the conditions met in our reference project.The conclusion drawn after working with this report is that there is a need for a clear standard for carbon fiber strengthening , preferably a standard that can be used throughout Europe..
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.
Krav och önskemål på skogsbruksplanen : förbättringspotential med laserskanning
In 2009 The National Land Survey of Sweden, Lantmäteriet, commenced a project intended to provide a new digital elevation model (DEM) of Sweden. The method chosen for the project was airborne laser scanning (ALS). In addition to information about the land surface the project will also provide information about the forest, this as a by-product. This data can be used to estimate forest variables such as height and volume. The estimates are often more reliable than what is standard today.
This study is based on interviews with employees and members of the forest owner association Södra in southern Sweden.
Barns upplevelse av att må bra : En studie av barns välbefinnande på förskolan
Syftet med examensarbetet är att undersöka i vilka situationer barn själva uttrycker att de mår bra samt undersöka när föräldrar och pedagoger upplever att barn mår bra på förskolan. Metoden som använts är en kvalitativ undersökning, intervjuer har gjorts med barn i femårsåldern och med föräldrar och pedagoger på två olika förskolor. Resultatet visar att barn upplever att de mår bra när de leker, denna uppfattning delas också av föräldrar och pedagoger i barnens närhet. För barnen är det viktigt med vänner och social samspel för sitt välbefinnande. Undersökningen visar också att pedagogerna i sin planering och med sitt sätt att tillrättalägga verksamheten ger möjlighet till KASAM och tillfälle till Flow.
Projektering av småhus med solvärme som huvudkälla
In this report a study has been done regarding different heating systems on which are the mostcomprehensive with solar heating systems. The report has also been focusing if solar power can beused as a primary heating source for supplying more than 50 % of the buildings total heatingproduction. The University of Dalarna constructed a demo-house for this purpose and according tocalculations the total solar usage is more than 50 %. This house has been made for referenceregarding the design of the heating system of property 5:37.Further studies have been made to compare different heating systems that are compatible with asolar system, where the compared systems purpose is to be independent of direct using electricity. Asystem of this design is regarded as sustainable according to environmental as economic issues.
Analys av fysiskt och administrativt flöde för provhantering vid Höganäs AB
In this project, we are studying the material flow and the information flow of sample materials and the appurtenant report of deviation for the purpose to be able to suggest better solutions. The sample material, which is to be analysed, is to be continuously taken from the production flow. The purpose is to navigate the process by the results found by the analysis. Because of this, it's very important that both methods of analysis are ensured and that the sample material is representative for the production flow. However, even more importantly, is that activities and transportations, combined with both flows, must perform in a quick and correct way in order to maintain or improve Höganäs AB's competitive strength.According to reports are about 20 products per day not available, for loading, at the time of delivery.
Död ved i gallrad skog och nyckelbiotoper : en jämförelse av habitatkvaliteter för vedlevande lavar och mossor
A high amount of dead wood is one of the most important prerequisites for high biodiversity on forest land in Sweden. Dead wood is most abundant in young forests, thinned forests, woodland key habitats and protected forest land. In old-growth forests most of the dead wood consists of logs and snags, whilst in managed forests a huge proportion of dead wood is made up of logging residues like stumps and FWD, fine woody debris (< 10 cm diameter). All these different types of dead wood may serve as substrates for epixylic bryophytes and lichens. However, few studies have been conducted on the relative importance of these different fractions of dead wood for the occurrence of bryophytes and lichens, especially when considering dead wood on thinned forest land.
Flow, motionstid och inre motivation : En enkätundersökning genomförd med tävlingsbuggare
Syftet med denna studie är att bidra till en pedagogisk diskussion om arbetet mot mobbning och trakasserier. Genom att undersöka lärares och fritidspedagogers uppfattning om förutsättningarna att arbeta mot mobbning och trakasserier i samarbete mellan skola och fritidsverksamheten. Studien består av analyser av enkätintervjuer och djupintervjuer med fritidspedagoger och lärare. Avsikten med intervjuerna är att undersöka likheter och skillnader i fritidspedagogers definitioner av och hur de arbetar mot kränkande behandling. Resultatet visar att respondenterna anser att kränkande behandling som visserligen inte ska förekomma i skola eller på fritidshem kan vara svårt och speciellt att använda en övergripande strategi mot kränkande behandling som fungerar.
Multimedia eller inte multimedia, det är frågan.
Is it possible, and suitable, to use multimedia in classic literature studies at Swedish upper secondary school? What alternatives are there? Is there any foundation in the curriculum for an expanded conception of text as in multimedia? Will the conception literacy support use of multimedia in classic literature studies, and in what ways? How do we generally look upon the definition text, is it only printed letters, or something more? To get an answer to the questions we decided to examine a number of theories, Gardner?s theory about the different intelligences, the conception literacy and the expanded text concept. In these three theories we took our starting-point for the following work. The main subjects became two interactive sights on Internet and one CD-ROM, all containing classic literature. Our previous knowledge in this subject field was very meager. This work has given us an opportunity to discover some of the multimedia that is available, and the result we have come to is that multimedia absolutely belongs in studies of classic literature as well as in other subjects.
Den skogliga informationens roll i ett kundanpassat virkesflöde : en bakgrundsstudie samt simulering av inventeringsmetoders inverkan på noggrannhet i leveransprognoser till sågverk
This MSc thesis is divided into two parts. The first part deals with the need for information
from forest campartments selected for clear cutting, in connection with planning in an
integrated forest- and sawmill enterprise. A review of literature is followed by a case stud y,
where present conditions in a Swedish forest company are compared with current research in
the area. The seeond part consists of a simulation stud y, which aims at camparing the
accuracy of inventory estimates using different methods. The estimates are delivery forecasts,
covering one month consumptian of timber in a large sawmill.