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8 Uppsatser om Crushing - Sida 1 av 1

Buntning av grot med lastbilsmonterad utrustning :

During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and Crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles.

Fixering av suggor ? så påverkas välfärd och smågrisdödlighet

Piglet survival is a problem of great significance in pig production, affecting both animal welfare and economic aspects negatively. In Sweden it is illegal to use farrowing crates for sows on regular basis. To encounter this problem there is a proposal of an animal welfare program to allow the use of crates for sows during, and a number of days after, farrowing. The proposal aims to reduce piglet mortality and improve pig welfare. This present review aims to analyse how crating affects the welfare of sows, gilts and piglets as well as piglet mortality.

The genetic background of oxytocin and its importance for maternal behaviour of sows

Oxytocin is today widely spoken of as a "feel good" hormone. Recent research has increased interest in the hormone and its role in social and sexual interactions, as well as its importance for complex behavioral patterns. There is evidence that oxytocin is released during physical contact and is said to suppress anxiety and stress. In animals and humans, oxytocin, which is a neuropeptide and likewise a hormone, is necessary for parturition and lactation. Synthesis of oxytocin occurs in brain neurons and in specific organs involved in reproduction.

När och varför dör smågrisarna under diperioden?

The purpose of this study was to compile when and why piglets die during the suckling peri-od. Piglet mortality is an important factor influencing the profitability of piglet production. There are many factors that play a role and interact whit each other. This study summarizes when the piglets die during the suckling period and reasons why the piglets die. The infor-mation given is crushed, illness, management/environmental, genetic influence and piglet birth weight/farrowingprocess.

Dagbrottsdesign med IPCC

Mager är ett fiktivt gruvprojekt i planeringsfas och utvärderingar har gjort över projektet som visade att projektet är lönsamt. Boliden vill se om Mager kan stärkas ekonomiskt genom att tillämpa fullt mobil In-Pit Crushing and Conveying (IPCC). IPCC avser att förkorta ledtiden mellan grävare och kross genom att placera en kross innanför dagbrottets gränser och sköta materialtransporten ut ur gruvan med hjälp av ett transportband. Förkortningen sker antingen genom att förkorta körtiden för truckarna från grävare till kross eller genom att helt eliminera truckarna. Det finns tre stycken IPCC-system, stationär, semi-stationär samt fullt mobil IPCC.

Prehospital omvårdnad vid risk för crush syndrom

Sammanfattning.Bakgrund:Crush syndrome eller traumatisk rahbdomyolys är vanligt vid större naturkatastrofer som tex jordbävningar. Det kan också uppkomma när personer utsätts för tryck mot musklerna vid tex stroke, intoxikationer, byggnadsras, industriolyckor. Inom ambulanssjukvården i Sverige har vi inte någon behandlingsplan för detta tillstånd och därför kan det finnas en risk att dessa patienter inte får rätt omvårdnad.Syfte:Studiens syfte var att belysa ambulanssjuksköterskans omvårdnad vid risk för Crush syndrome.Metod:En litteraturstudie gjordes för att granska redan publicerat forskningsmaterial. Sökningarna gjordes i databaserna Cinahl och Pubmed. Fem artiklar inkluderades och innehållet analyserades med manifest innehållsanalys.Resultat:De patienter som riskerar att få Crush syndrom har följande symtom: skada på muskelmassa, förlängd kompression, komprimerad lokal cirkulation, puls >120 och onormal urinfärg.

Brandgravar : Yngre järnålder i Broe, Halla socken, på Gotland : en studie i olika metoder, med fokus på kremeringen

This essay concerns the osteological cremated skeletal remains from Broe, Halla parish, Gotland of  The Late Iron Age.The focus of this essay is to determine the position of the corpse on the pyre, whether the cremated bones were crushed after or prior to the cremation and if the individual was buried in the pyre. In addition the species, age, sex and skeletal abnormalities of the bones in question will be studied.The result of the research has yielded that the cremated bones did not need to be crushed to result in the small fragment sizes. Crushing of the bones may have happened during the cremation, this conclusion has been drawn through the comparison of a pyre experiment were bone fragmentation is evident with cremated foxes, and dogs in the cremation graves from Broe. The construction of the pyre and the position of the corpse could not be determined through colouring and fragmentation of the bones.The human's were commonly buried in the pyre, and in some cases it is possible that the "grave" in fact is the remainder of a pyre. The species found are dog, horse, cow, sheep/goat and bear.

Inverkan av flisig krossballast på betong

Concrete is one of the world?s most common construction materials and is composed of 70-80 % stone material. Today crushed stone is used as aggregate in concrete in order to replace natural aggregates due to strong environmental reasons. Stone Crushing yields flaky material and in this thesis studies are made on the flaky particle shape and how it influence properties of concrete such as workability, rheology and strength. The concrete recipes used in this thesis have fixed values, the only variable is the flakiness of the crushed stone.