Sökresultat:
1038 Uppsatser om Strength testing - Sida 40 av 70
Höghållfast stål : Optimerat materialutnyttjande i byggnadsstommar
I detta examensarbete utförs en jämförelse av HSQ-balkar och VKR- pelare i hållfasthetsklass S355 respektive S460. I arbetet dimensioneras profiler anpassade efter studerade fiktiva konstruktioner och ställs emot varandra. Syftet är att optimera profilerna och effektivisera stålanvändningen. Förhoppningen är att en applicering av höghållfast stål i vanliga konstruktioner medför en reducerad stålmängd. Är minskningen tillräckligt stor bidrar denna i sin tur till en mindre miljöpåverkan samt kostnadseffektiva dimensioneringslösningar.Två olika byggnadsstommar utförda i stål med sträckgränsen 355 respektive 460 MPa undersöks.
Ordets tillblivelse : aspekter av Nietzsches tidiga språkfilosofi
The thesis examines the nineteenth century German philosopher and philologist Friedrich Nietzsche?s early notion of how a word is generated in the process of perception. It does so by looking at the ?metaphorical transitions? Nietzsche talks about in the essay ?Über Wahrheit und Lu?ge im außermoralischen Sinne? (?On Truth and Lie in an Extra-MoralSense?). According to the relevant passage in ?On Truth and Lie?? an image is first created as a metaphor for a stimulus and a word is then created as a metaphor for the image.
Effekter av funktionell träning på balans, benstyrka och self-efficacy hos äldre
Fysisk aktivitet kan förebygga och minska åldersrelaterade fysiologiska och psykologiska förändringar. Effekterna av funktionell träning för äldre är dåligt studerat. I Sörmland pågår ett fallpreventionsprojekt som syftar till att halvera antalet höftfrakturer till år 2012. Studiens syfte var att undersöka om äldres balans, benstyrka och self-efficacy, en persons grad av självtillit att utföra en specifik aktivitet framgångsrikt, påverkades av att göra fem uppresningar från sittande till stående två gånger om dagen under fyra veckor. En intervention genomfördes med 23 deltagare på ett servicehus/äldreboende.
HDR och Tone mapping i automatiserade tullsystem
This report is about how HDR (HighDynamicRange) can be created and used in combination with Tone mapping. This work has been carried out together with Kapsch TrafficCom AB in Jönköping.The objective of this project is to:Evaluate and investigate the effects given to pictures by HDR and tone mapping.Evaluate if the technology may lead to improvements in Kapsch?s systems.To construct a program which is able to handle some form of tone mapping or HDR-algorithm.These questions will be answered in this report:What kind of effects has HDR and tone mapping-algorithms on pictures?Can the HDR-technology give better data in Kapsch?s systems?The research method used in this report is called action research. This means the authors has investigated the technology by reading different documentations and by testing different algorithms to see what kind of result they give. The report describes some of the tests made to see if the technology is appropriate in Kapsch?s system.There is two smaller reports made by the authors which documenting some of the work.The first report describes the work with different settings for a camera to create pictures with HDR-quality.
Övervakningssystem för båtelektronik
Leisure boats of today have a lot of electronics that needs battery power to work. In additionto that electric propulsion systems have gotten more popular lately, which further increasesthe demand for high battery capacity. The batteries used are mostly lead-acid batteries and toget the most out of the batteries it is important to treat them right. To optimize the electricsystem it is important to have knowledge of how the batteries and the electric motor are usedand which factors affect e.g. efficiency and recharging.A new electric drive that can replace old diesel engines is being developed and needs testingand evaluation.
Eutanasi : en skonsam död
This work is about euthanasia and how to use it on horses, dogs and cats.
A description for each animal is done, about when it is time, why, which methods can be used and who is allowed to use them, how and where it shall be done.
The methods we have concentrated on are:
- Chemical destruction and the most common drugs for euthanatize horses, dogs and cats.
- Physical disruption of the brain activity by a captive bolt, only for horses.
The captive bolt only makes the horse unconscious and must always be followed by cutting off the vena jugularis. Then the horse dies because of loss of blood.
No matter which method used for euthanizing, the animal must be declared to be dead by the operator before other measures. The testing criteria for death: muscle relaxation and cyanosis, cessation of reflex activity and pupillary dilatation, cessation of respiratory activity and cessation of all cardiac activity.
Läkemedel som förebygger och behandlar trombos hos hund och katt
Several diseases increase the risk of thrombosis in dogs and cats, often with a fatal outcome. Currently there are no definite treatment guidelines for the use of thrombolytic and thromboprofylactic agents in veterinary medicine. None of these drugs are approved for dogs and cats in Sweden. Medicines aimed for humans have been used tentatively. This literature study is an investigation of what is currently known about the effects and safety of these pharmacological agents when used for dogs and cats.
Resonans
This report describes how the system may be exposed to oscillations and how this can lead to resonance. Resonance is a phenomenon that occurs when a system is affected by external periodic oscillations with frequencies close to the system's natural frequencies. Structures subjected to resonance can risk great damage and destruction, why resonance is something that is important to take into account when designing structures. Alternative ways to counteract resonance is to supply damping in the system. Damping means that the resonance decreases instead of letting the amplitude increase.The report discusses some examples on constructions that have experienced the effect of resonance.
Energieffektivitet Hos Dubbelskalsfasader
Today multi-touch technology is the basis for many new techniques designed to improve
interactions with computers and mobile devices. It seems that multi-touch screen interface
makes the user handling very natural in the sense that there is no need for a manual in how to
interact with the object on the screen.
The aim with this paper is to establish a fundamental set of design principles intended
specifically for large multi-touch interfaces. To reach this goal we have implemented a couple
of sub-goals beforehand:
It was essential that we acquired a good understanding of the current state of the multi-touch
interface and the different implementations that exist today. To make this possible we
constructed a multi-touch display, "Rosie". Knowing how the hardware is produced today will
help us understand the limitations and also the possibilities of the design implementations
today and in the future.
We also needed to devise a sound interaction design process that conveys the modern
designers work.
A Strategic Decision-Making Model for Supply Chain - A Void to be Filled
Many researchers emphasize the increasing strategic importance of supply chain management, but there is still a lack of concrete guidance for managers faced with strategic decisions in supply chain. Within decision-making theories, the rational decision-making model is the most commonly used. This because of its suitable foundation, enabling a structure to the complex decision process. The rational decision-making model is today not developed to include the aspects of strategic decision-making made in supply chain. The purpose of this research is to adjust a structured rational decision-making model, making it applicable for strategic decision-making in supply chain.
Amningsbh : Produktutveckling av amningsbh enligt en identifierad kravbild
Definitionen av en amningsbh är en bh där bröstet lätt kan tillgängliggöras för barnet vid amning, till exempel med en öppningsbar kupa. Vidare ställs det höga krav på att amningsbh:n ska vara anpassad för den moderna mammans livsstil och samtidigt ta till hänsyn de komplikationer som kan uppstå vid amning. Hos ett svenskt modeföretag, vilket studien riktar sig till, finns det ett behov av att vidareutveckla sitt sortiment av amningsbh. Syftet med studien är att granska vilka krav en amningsbh ska uppfylla, samt hur kraven ska uppfyllas. Dessa riktlinjer ska sedan sammanfattas och verifieras i framtagningen av produktionsunderlag för en första prototyp.
Fiberföstärkning av Limträbalkar
Glulam is a product that was engineered to make use of timber in a more efficient way. Bychoosing timber of similar quality and discarding natural defects during production, thedevelopment of a stronger cross-section is achieved.Carbon fiber is a relatively new material with a high tension capacity. This feature is used toexamine how the bending capacity of the beams improve by adhering carbon fiber laminateson the lower edge of the beamsThe strength of the material is tested with three experiments: carbon fiber on the bottom of thebeam (a), carbon fiber attached to the lower sides of the beam (b) and carbon fiber in thebeam, covered with a layer of wood (c)The results show that the first case, where the carbon fiber is attached to the bottom of thebeam, gave the best result with an increase in capacity of 59 % compared to the nonreinforcedcontrol. The other two cases also show an improvement in capacity, beam-type 3had a capacity increase of 47% and beam-type 4 increased with 25 %Tests were also made with glulam beams reinforced with fiberglass, but these tests were notanalyzed in depth because the purpose was to compare the capacity to carbon fiber. Thisbeam improved its capacity by 40.3%.The tests show that carbon fiber as a reinforcement material for glulam is a good choice whenthere is a requirement for stronger cross-sections in both new production and renovation ofold buildings.
Vidareutveckling av PV/T-receiver för koncentrerat solljus
The rising demand for electricity and heat raises a big challange for the society and engineers. Many products have been introduced to the market to supply more energy to the energy systems. Absolicon AB is a Swedish company that develops and markets a combined heat and power generating product. The product, Absolicon X10, uses a parabolic trough to concentrate the radiation of the sun onto a receiver. The receiveris equipped with mono crystalline solar cells and is cooled by a circulating liquid media.
Varumärkesutvidgningar för Personliga varumärken vs. Företagsvarumärken - Same same, but different
Today, branding is not a phenomenon but rather a prerequisite for a brand to be able to both survive and grow stronger. During the last couple of years, personal branding has come to be an established term, just like corporate branding. With the growth of the social media and the thousands of ways to interact with each other personal brands face great competition. It is more difficult than ever to maintain a strong brand, partly because of this. There are several growth options for brands.
Sketching a set of multi-touch design principles
Today multi-touch technology is the basis for many new techniques designed to improve
interactions with computers and mobile devices. It seems that multi-touch screen interface
makes the user handling very natural in the sense that there is no need for a manual in how to
interact with the object on the screen.
The aim with this paper is to establish a fundamental set of design principles intended
specifically for large multi-touch interfaces. To reach this goal we have implemented a couple
of sub-goals beforehand:
It was essential that we acquired a good understanding of the current state of the multi-touch
interface and the different implementations that exist today. To make this possible we
constructed a multi-touch display, "Rosie". Knowing how the hardware is produced today will
help us understand the limitations and also the possibilities of the design implementations
today and in the future.
We also needed to devise a sound interaction design process that conveys the modern
designers work.