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154 Uppsatser om Vibration threshold - Sida 7 av 11
Långsiktig förändring av fosforhalt och skördenivåer för jordar med höga P-AL-tal : en analys av försöksserien "Exploatering av höga fosfortillstånd"
The field trial Exploatering av höga P-AL-tal (Exploiting P in heavily P dressed soils) started in 1982-1983 and included seventeen study sites placed across Sweden.
Each site included three treatments, one unfertilized control (A), one aiming at replenishment of harvest removal, i.e. fertilized with 15 kg P ha-1 year-1 (B) and one over-fertilized (C) with 30 kg P ha-1 year-1. In this thesis data from the five longestrunning study sites are analysed based on four hypotheses. The hypotheses stated
that in soils with high P-AL values and a pH over 6.0 P-AL will not decrease over time in the control (A) or in the replenishment treatment (B), that P-AL and P-HCl
in the top soil will increase at all sites for the over-fertilized treatment (C) and that yields will not decrease as long as the P-AL is above 12 mg P 100 g-1 soil.
My conclusions from the analysis of data from the selected sites are as follows:
- A pH above 6.0 cannot guarantee a stable P-AL value in an unfertilized
but phosphorus-rich soil.
- The P-AL of unfertilized soils decreased faster at lower soil pH than at
higher pH.
- In the replenishment treatment (B) the rate of P-AL decrease seems to fall
at a pH of 6.5. However, the influence of the soil type cannot be ignored.
- P-AL and P-HCl did not increase in all over-fertilized treatments.
Svenskhet på Flashback forum? : Idealtypsanalys om Svenskhet utifrån fyra implicita kulturdefinitioner om svenskhet/svensk kultur på Flashback forum
Swedes and Swedish Culture are controversial political subjects in Sweden. The definitions for Swedish culture are very vague and what is the answer to the question: Who can be called Swedes? It has been debated in Sweden more since Swedish Democrats crossed the four percent threshold necessary for representation in the Swedish parliament. Swedes or Swedish culture on a large internet forum with 2 million visitors per week called Flashback forum is material for this thesis.Flashback forum has currently more than 50 million posts published and has more than 970 000 users. Flashback forum is more and more often mentioned in Swedish media.
Ett designprojekt med fokus på för tidigt födda barns emotionella behov i kuvös
Babies born prematurely are deprived of normal sensorimotor stimulation when placed in an artificial environment, the incubator. The aim of this project was to design a series of products that could promote the baby?s emotional and neurological development, and to facilitate parental bonding. The products designed in this project has a theoretical basis on the research available today on cognitive and emotional development in children born prematurely. They were developed in close cooperation with a group of parents and nurses in a neonatal intensive care unit.Presence is a product collection for developmental care, consisting of a mattress, a figure and a necklace. The mattress has vibration sensors that transfer the mother?s heart beat and speakers with recorded heartbeat and her voice.
Konstruktion av Industriellt Vibrationsmätningssystem med signalbehandling baserad på Digitala Vågfilter av Lattice-struktur
In this bachelor thesis a complete prototype of an industrial vibration measurement platform has been developed. By measuring a number of variables such as acceleration, temperature and speed conclusions can be drawn on machinery health. The aim is to evaluate hardware and software solutions for a possible future product. Based on a requirement specification a proper hardware design has be developed. The hardware consists of a four-layer PCB with an ARM Cortex-M3 microcontroller and about 250 other components. The PCB was designed, assembled, tested and finally housed in a box.
Störningar vid om- och nybyggnad av sjukhus : Reducering av upplevda störningar vid ombyggnader av Södertälje sjukhus
Störningar som damm, buller och vibrationer förekommer vid alla byggarbeten. Detta skapar problem vid byggnation av sjukhus med pågående verksamhet. Stockholms sjukhus uppfyller inte samhällets växande behov på hälso- och sjukvård. Stora investeringar görs därför för att rusta upp sjukhusen, Södertälje sjukhus är det första att moderniseras [2].Examensarbetet undersöker vilka störningar som vårdpersonalen vid Södertälje sjukhus upplever och vad Locum samt Södertälje Sjukhus AB gör för att reducera dessa. Observationer, möten och litteraturstudier genomfördes för att samla information om Södertälje sjukhus, Locum och byggrelaterade störningar.
Samsjuklighet och förbättring : En kvantitativ studie om personer med missbruk och samtidig svår psykisk störning på Södermalm i Stockholm
The purpose of this paper was to examine how clients on the unit for adults at Södemalms district administration (Stockholm, Sweden) with severe mental illness and substance abuse differs from other clients with substance abuse at the baseline and at follow-up one year later. We have used a quantitative method and analyzed material from ASI-interviews performed at the adult drug abuse unit at Södermalm during the time period 2002-2010. At the baseline the clients with substance abuse and co-occurring severe mental illness have more problems than other clients, primarily in the area of mental health. They spend more time alone and are more likely to engage in illegal activities. Interviewers assess their situation as more serious and that they need more help in all of ASI's areas of life than other clients.
Smärta och genus- spelar det någon roll?
De genusrelaterade skillnaderna inom fenomenet smärta är en aspekt som måste betraktas i omvårdnadsarbetet. Många faktorer påverkar smärtupplevelsen och sjuksköterskan måste ta hänsyn till dessa för att kunna göra en korrekt bedömning. Syftet med denna studie var att undersöka om det fanns skillnader i män och kvinnors smärttröskel och smärttolerans, samt om skattningen av den upplevda smärtan skiljer sig mellan könen. En inriktning mot akut fysisk smärta har gjorts i detta arbete. Arbetet har utförts som en litteraturstudie som använt sig av databassökning för att inskaffa det vetenskapliga materialet.
Nationalism, främlingsfientlighet och islamofobi i politiken : En studie av fyra europeiska partier
Hand-arm vibrationssyndrom (HAVS) är ett tillstånd som inte är så välkänt trots att det är ett relativt vanligt tillstånd bland flera yrkesgrupper. Ökad kunskap inom området kan vara ett redskap för arbetsterapeuter i mötet med patienter med HAVS. Syfte: Syftet var att beskriva den vetenskapliga dokumentationen om hand-arm vibration syndrome (HAVS). Metod: En systematisk litteraturstudie gjordes med sökningar i databaserna AMED, Cinahl och Medline. Nio artiklar valdes till resultatet.
Diagnostikmetoder för ångreglerventil med servomotor
In this bachelor thesis, diagnostic methods for one of Siemens stem inlet control valves have been developed. The work has taken place during ten weeks at Siemens Industrial Turbomachinery AB in Finspång. The company produce steam- and gas turbines and also provides service and maintenance. The purpose with this project has been to develop diagnostic methods that oversee the health of the control valves. By using the developed methods you will know when it?s time for maintenance.
Undersökning av snöskoterstyrets inverkan på vibrationsemissioner för hand-arm vibrationer
I dagsläget finns det en rad olika eftermarknadsprodukter som påstår sig reducera vibrationer som förekommer vid skoterkörning. Denna rapport har på uppdrag av Center for Vibration Comfort AB (CVK) undersökt skoterstyrets inverkan på vibrationsemissioner för hand-arm vibrationer (HAV), samt vilken inverkan olika eftermarknadsprodukter har på emissionerna. Tidigare rapporter inom ämnet påvisar att skoterförare riskerar mer än tre gånger så hög chans för Raynaud?s fenomen (?Vita-fingrar syndromet?)(17% av förarna påvisade syndromet) gentemot kontrollgrupper (5% påvisade syndromet). De påvisar även att de farliga vibrationerna i styret kunde dämpas med 30-40% genom att använda isolatorer vid motorfäste, välja lämplig längd på styre samt använda gummiplattor vid stödytor.
Mikrolitografi för rastrerade Gobos
Beacon AB has been producing Gobos for some time. A Gobo is a small round sheet used in projectors almost like a slide. It is used mostly in the commercial and entertainment business. Today these Gobos are created by using a film (also called mask). A digital exposure machine called LIOS has been developed to make it possible to create Gobos using direct exposure.
Att veta Gudarnas hemlighet : En sårbarhetsanalys av omständigheterna kring stormen Gudrun med pressure and release modellen
The concept of vulnerability is the capacity or the sensitivity to become damaged. Vulnerability are characterized by one or more of the following terms; a system´s sensitivity to exposure to shock, stress or interference, the state of the system in relations to a threshold of damages, and the system´s ability to adapt to the changing circumstances. Vulnerability in this study is referring to the sensitivity of the circumstances that lead to sustainable livelihood that can´t be maintain and that there is an inability to cope with and manage stress. The choice of making a study in this area is based on that action needs to be taken to moderate the vulnerable aspects of society, in this respect in relations to storms. Analyzes of the social vulnerability to climate change or natural events is needed for effective actions.
The Integration of Swedish and global grain markets : a price transmission analysis of wheat
Increased trade and eased policy restrictions have brought markets closer together. Prices at different locations are much likely to affect each other to a certain extent. Since the adaption of Common Agricultural Policy in 1995 the Swedish wheat market has been exposed to the world market and Swedish farmers are facing new challenges. A broader knowledge about market integration and price transmission will facilitate Swedish farmers, banks and politicians in making rational decisions. Therefore the aim of this research is to explain how global wheat prices are transmitted on Swedish wheat prices.
Förebyggande arbete är den viktigaste aspekten vid Hand-Arm Vibrationssyndrom : En systematisk litteraturstudie
Hand-arm vibrationssyndrom (HAVS) är ett tillstånd som inte är så välkänt trots att det är ett relativt vanligt tillstånd bland flera yrkesgrupper. Ökad kunskap inom området kan vara ett redskap för arbetsterapeuter i mötet med patienter med HAVS. Syfte: Syftet var att beskriva den vetenskapliga dokumentationen om hand-arm vibration syndrome (HAVS). Metod: En systematisk litteraturstudie gjordes med sökningar i databaserna AMED, Cinahl och Medline. Nio artiklar valdes till resultatet.
Radioktivt cesium (Cs-137) i vildsvin (Sus scrofa) från Tjernobyldrabbade områden i Sverige
In April 1986 an accident occurred at the nuclear power station in Chernobyl. Radionuclides were spread all over Europe including Sweden. Today there are still measurable
concentrations of 137Cs in the different ecosystems in the contaminated parts of Sweden. The wild boar is the second most popular game in Sweden and today the Swedish population
consumes more wild boar meat than ever. As the wild boar population increases the wild boars are moving further north towards the contaminated areas, which creates an interest to study the state of 137Cs in wild boars in these areas.
Muscle samples from wild boars collected during 2010-2013 were analyzed based on 137Cs content.