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1730 Uppsatser om Alternative load paths - Sida 64 av 116
Ersättningsmodeller för ballasttransporter : vid anläggning och underhåll av skogsbilvägar
Construction and maintenance of forest truck roads are a necessary element of industrial forestry. Payment for contracting services in this context can be done according to a number of payment models. This study will focus on the methods and consequences associated with a change of Holmen Skog?s payment model from per hour to per metric ton for ballast hauling.
The aim of this study is to improve the economic efficiency of Holmen Skog?s ballast hauling in construction and maintenance of forest truck roads. This is done by formulating and evaluating a proposal for a payment model based on crowns per ton.
Blood compatibility of biomaterials made of recombinant spider silk
Native spider silk is an attractive lightweight natural polymeric material with a unique combination of strength, extendibility and flexibility. Synthetic, recombinant spider silk is an attractive biomaterial with several possible fields of application.
When a foreign material is introduced to blood, this can for example cause unwanted coagulation and complement activation.
The aim of this study was to investigate if coatings of heparin or albumin could improve the blood compatibility of films of recombinant spider silk and to develop an initial method to do so. Hypothetically, objects like pacemakers, stents and dental implants could be covered with spider silk films of high blood compatibility to reduce potentially harmful foreign body reactions caused by the immune defense. Increased blood compatibility would likely lead to improvements for both the individual patients and the society thanks to reduced load on healthcare institutions.
Our objective was to assess the blood compatibility of both functionalized and non-functionalized recombinant spider silk by evaluating coagulation and activation of the complement system of the immune defense.
Coagulation was evaluated visually on glass slides and complement activation was analyzed by measuring the concentration of the complement system mediator C3a in blood samples that had been exposed to the different materials.
This study introduces a non-toxic and easy performed method of improving the blood compatibility of recombinant spider silk films by adding a heparin coating.
Heparin coated surfaces had statistically significantly higher blood compatibility than uncoated surfaces. The effects of albumin coating of films were less clear compared to the results of heparin coated films.
Complement activation could not be evaluated because of high activation in all samples prior contact with the materials that were included in the study..
1553-Simulator. In-/uppspelning av databusstrafik med hjälp av FPGA
At Saab Aerospace in Linköping, components for measurement systems to the fighter aircraft JAS 39 Gripen are developed. In this activity you sometimes want to record the traffic transmitted on the data busses that connects different sys-tems. This traffic on the data busses is using the military standard MIL-STD-1553. This project has aimed to create a system for recording and sending 1553-data. The system is used on an ordinary personal computer, equipped with a recon- figurable I/O card that among others has a programmable logic circuit (FPGA).
Den Gropkeramiska kulturens framträdande : en kritisk analys gällande tre av de främsta teorierna kring den Gropkeramiska kulturens framträdande i Nordeuropa
In this essay the author has chosen to analyze the similarities and differences between some of the northern Europe?s late Mesolithic and Neolithic cultures. The research is of a processual standpoint and the information is mainly gathered from secondary sources as well as ethnological studies. The material collected has been analyzed in both a processual and a post-processual manner to most accurately study the foundations of the three primary theories describing the Pitted Ware Culture?s origin.
Säsongslagring av solvärme
I takt med att besökare och patienter ökar måste kontinuerligt Östra sjukhuset verksamhet utvecklas. Detta medför omläggningar i trafiken och förflyttningar av verksamheter. Idag finns flertalet brister kring Östra sjukhusets fysiska planering som behöver ses över, dessa är bland annat trafikflöden, säkerhetsaspekter och parkeringsmöjligheter.Rapporten redogör för förändringar i den fysiska planeringen som förbättrar dess utformning. Genom studier av relevant litteratur och diskussioner med expertis har förslag av problemområden tagits fram. Dessa har sedan bedömts efter listor av deras respektive för- och nackdelar som kunnat urskiljas.Arbetet visar framtagandet av ett väl fungerande förslag som kan verka som en bas för idéer till nutida och framtida förändringar kring den fysiska planeringen.
Effektivisering av 3D-processen inom anläggningsprojekt Förbättring av dataflödet från projektör till maskinstyrning
I takt med att besökare och patienter ökar måste kontinuerligt Östra sjukhuset verksamhet utvecklas. Detta medför omläggningar i trafiken och förflyttningar av verksamheter. Idag finns flertalet brister kring Östra sjukhusets fysiska planering som behöver ses över, dessa är bland annat trafikflöden, säkerhetsaspekter och parkeringsmöjligheter.Rapporten redogör för förändringar i den fysiska planeringen som förbättrar dess utformning. Genom studier av relevant litteratur och diskussioner med expertis har förslag av problemområden tagits fram. Dessa har sedan bedömts efter listor av deras respektive för- och nackdelar som kunnat urskiljas.Arbetet visar framtagandet av ett väl fungerande förslag som kan verka som en bas för idéer till nutida och framtida förändringar kring den fysiska planeringen.
Framtagning av Drag&Drop klassbibliotek för WPF-baserat användargränssnitt
System Andersson AB is a company located in Jönköping that works with developing computer systems for the mechanical engineering industry. As of today, when this report is written, the company is working on the development of a new Manufacturing Planning and Control (MPC) system. This new system aims to create not only a user friendly interface but also a modern, stylish interface. To achieve this, the company has decided to work with a, for them, new application framework; Windows Presentation Foundation (WPF).System Andersson is well known for developing systems for different kinds of touch screens, this project is no exception. For this new user interface the company wishes to implement different types of Drag&Drop functionality.
Fem yrkesverksamma lärares uppfattningar om religiösa friskolor : En kvalitativ intervjustudie om vad lärare från både religiösa och kommunala skolor har för uppfattning om religiösa friskolor
This study deals with religious independent schools and its impact on society. The purpose of this essay has been to examine what various teachers from both religious independent schools and public schools have for perception of religious independent schools. The questions highlighted in the study is the teachers´ general view to religious independent schools, teachers´ perception of the Education Act " a denominational education, but a non- denominational teaching", and what teachers believe to be segregated or inclusive.The study has consisted of five qualitative interviews with different teachers, where three of them work at religious independent schools, while the other two teachers work in public schools.The study shows that there are prominent differences of approach to religious independent schools. Teachers who work at religious independent schools avert criticism of religious independent schools and argue that teaching in religious independent schools do not differ appreciably from the public schools. Instead can religious independent schools serve as a good alternative to the public school.
Arenainvesteringar i Stockholm : En studie av sex arenor.
The modern arena as we know it today has its origins from about 100 years ago. Since then a lot of aspects have been changed and developed. Arenas built in the same age tend to have the same features and configurations and can therefore be categorized into different generations. Stockholm is represented in each generation but the fourth that constitutes arenas of the early 21st century. Besides that there has been several arena constructions built through the entire 20th century and now most recently in 2010s.The overall motive behind arena investments can be categorized into two types.
Fysisk aktivitet på recept - patientens upplevelse : - En intervjuundersökning
Jacobsson, A. (2013). Physical activity on prescription ? patient experience. C-thesis inPublic Health.
Modellering och reglering av drivenheter i gaffeltruck
To enable the enhancement of the driver's environment in a forklift, an alternative form of steering has been evaluated. An earlier concept with a combined driving and steering wheel has been exchanged to a concept with two driving wheels. A link wheel has replaced the combined driving and steering wheel. The steering is done through differentiation of the velocities of the two driving wheels. The scope of this master thesis is to create a simulation model, create a control program and to evaluate the concept of two driving wheels.
Psykedeliska substanser och kreativitet
Syftet med studien var att unders?ka sambandet mellan anv?ndning av psykedeliska substanser och kreativitet, samt om intelligens och personlighetsdraget ?ppenhet modererar detta samband. Urvalet bestod av 223 deltagare, varav ungef?r h?lften hade erfarenhet av psykedelika. Unders?kningen anv?nde ett bekv?mlighetsurval och inkluderade kortversioner av sj?lvskattningsformul?r och tester s?som Alternative Uses Test (AUT), Short Scale of Creative Self (SSCS), Ravens matriser och Big Five Inventory (BFI-2-S) f?r att m?ta aspekter av kreativitet, intelligens och ?ppenhet.
Stationsutveckling i stad och på landsbygd : exempel från Gagnef
The intention of this final thesis is to look into the improvement of small and run down railway stations. Many railway stations are today derelict and decaying. The purpose of this essay is to propose alternative strategies of action by discussing the ecology, the history and the social function of the railway station. There is also an overview of projects already completed.
In the analysis part of the thesis, the genius loci or the spirit of place is put forward as means of reaching a solution.
Transientanalys för Forsmark block 2 och 3 : Studie av hur val av driftpunkt och pumpreglering påverkar torrkokningsgränsvärdet
The dry out criterion (MCPR) has been calculated for the most limiting H2-events for Forsmarks unit 2 and 3, at operating points that are normally not analyzed before each cycle. The operating points that normally are regarded as the ones with the lowest margin to dry out are the ones where the thermal power is the highest at agiven recirculation flow. This report shows that this is not the case for Forsmark 3. MCPR-values at partial power operating points are higher for the limiting case inside rather than on the boundary of the region of operation. It is therefore recommended that the method for determining the dry out criterion for Forsmark 3 is revised to account for this effect.
Teknikens fokus i förskolan : En intervjustudie för att undersöka teknikarbetets väg genom förskolornas planering, inspiration och miljöcertifiering
System Andersson AB is a company located in Jönköping that works with developing computer systems for the mechanical engineering industry. As of today, when this report is written, the company is working on the development of a new Manufacturing Planning and Control (MPC) system. This new system aims to create not only a user friendly interface but also a modern, stylish interface. To achieve this, the company has decided to work with a, for them, new application framework; Windows Presentation Foundation (WPF).System Andersson is well known for developing systems for different kinds of touch screens, this project is no exception. For this new user interface the company wishes to implement different types of Drag&Drop functionality.