What is located on the bottom in the water outside of Birka? Remains of a water palisade or jetties and other constructions.Birka a Viking Age town that existed between AD 750 and 975 was located on the northwestern part of the small island of Björkö, in the Mälar archipelago of the Baltic Sea in Sweden. The Town was protected onshore by a hill fort and a town rampart. It is a widely spread assumption that Birka had a water palisade as a part of its defense. There are logs and other remnants on the bottom of the lake dating back to the Viking age.

This bachelor thesis discusses firefighting and the use of portable fireextinguishers in the salvageof historic artefacts focusing on textiles. It also looks into the use of multi-purpose dry chemicalextinguishers in a textile context and the impact the actual dry-agent has on textiles afterfirefighting.Literature studies, interviews and tests on different textiles were carried out to write this thesis.During the tests textiles were exposed to the dry agent and also to dry agent plus water toinvestigate the difference in residue. After vacuumcleaning it was clear that when the textile wasexposed to dry agent and water it was almost impossible to remove the chemical without rinsingin water.By examining the residue left on the textile using SEM it was possible to see if a textile was aswell decontaminated after vacuum-cleaning as it looks to the eye. We know that the dry agentoften consists of ammonium phosphate which acts corrosively on many materials and one canassume it damages textiles as well after longer exposure.Buildings housing cultural collections are vulnerable as we cannot easily replace ruined materialwith new.

FSC (Forest Stewardship Council) is the major form of certification system in Swedish forestry today and its more than 11 million hectares are covering almost half of the total productive forest area in the country. Its regulations prescribe that at least 10 wind firm trees should be left behind after every clear cutting operation. This study have taken place on 30 recently clearcut objects in Bergslagen, Sweden, were an inventory of the standing stock have been made. The research shows that, with 90 % security, the retained trees together contain 9-13 m3sk per hectare. Pine is the dominant tree and it covers more than half the numbers of retained trees and its volume cover 65 % of the retained trees total volume. Spruce is on second place with 30 % of the retained trees, but only 21 % of the standing stock.

I alla byggprojekt som behandlas är arkitekter och brandkonsulter två viktiga aktörer. Arkitekternas huvudsyfte är att ge människor ett gestaltningsmässigt intryck av en byggnad, men även att ge den ett praktiskt och tryggt användande. Brand-konsulternas roll är bland annat att hjälpa arkitekterna med den del som innefattar brandsäkerhet. Idag är samarbetet mellan arkitekter och brandkonsulter inte optimalt men det finns enkla förändringar som skulle effektivisera arbetsmetodiken.Detta examensarbete har resulterat i en lathund gällande brandprojektering som riktar sig till arkitekter. Lathunden baseras på kapitlet om brandskydd i Boverkets Byggregler (BBR), de omfattande handböckerna som används vid projektering samt statistik gällande de vanligaste problemen mellan aktörerna idag.

Sverige är för tillfället operativa med Helikopter 16 - Black Hawk i Afghanistan. Uppgiften som löses i Afghanistan är främre och taktisk sjuktransport (MEDEVAC).Detta arbete handlar om hur befintliga VMS-system i helikoptrar kan kompletteras i syfte att möta ett föreliggande prickskyttehot vid lösande av främre MEDEVAC i ett insatsområde som miljömässigt liknar Afghanistan. I arbetet analyseras möjliga tekniker utifrån aspekter från ett konstruerat scenario där helikopterbesättningarnas uppgift, insatsmiljö samt hotbild beskrivs.Resultatet visar på att MEDEVAC-helikoptrar kan utrustas med sensor-gimbaler där olika sensorer kan kombineras, vilket möjliggör spaning i 360°. Detta bidrar till den militära nyttan då helikopterpersonalens lösande av uppgift effektiviseras, chansen till överlevnad ökar samtidigt som personal och patienter kan känna sig tryggare..

In the tropics, logging and wild fire can result in degraded secondary forests with lower biodiversity than in the natural forest. One way to limit forest degradation is to rehabilitate the present large areas of secondary forests. However, there is a lack of knowledge concerning the ecology of tropical tree species and further studies would be advantageous for future rehabilitation efforts of degraded rainforest. The objective of this study was to investigate how mother trees in secondary forest and different site factors affect the abundance and spatial distribution of natural regeneration of non-pioneer tree species in a tropical rainforest in Sabah, Malaysia. The study took place in the INIKEA Forest Rehabilitation Project area, which suffered from wild fire in 1983 and has been selectively logged over both before and after the fire. Natural regeneration and site variables were inventoried in plots, while mother trees were inventoried in the whole survey area.

Denna studie unders?ker en alternativ utformning av termisk brandgasventilation. Utformningen bygger p? att ers?tta tillufts?ppningar i markplan med r?kgasluckor i tak med hj?lp av brandteknisk installation i form av r?kgardin. Syftet med arbetet har varit att g?ra en j?mf?relse mellan denna hypotetiska utformning och traditionell brandgasventilation f?r att kunna utv?rdera om samma effekt kan uppn?s med de olika metoderna.

This report covers a description of the military support attainable to society and made available by the Swedish Armed Forces, in the event of a crisis. The main focal point is the needs of the rescue services..

Abstract Over the years the consciousness of risk has grown. It?s hard to influence risks, therefore there are guidelines stating that significant risk must be included in the annual report. This paper is a case study; the purpose was to examine how four Swedish listed companies chose to disclose their internal and external risks. Risk is initially described in general sense and then it figures to what constitutes an economic risk.Through a case study of four Swedish listed companies? annual reports we have, through qualitative methods found how the companies chose to disclosure their risks.

Sveriges ökade engagemang i internationella konflikter har förändrat under vilkaformer och i vilka miljöer som dagens militära operationer genomförs. Framföralltinnebär det att alla insatsförband inom Försvarsmakten ska kunna verka inom allakonfliktnivåer och i de flesta miljöer, även i urban terräng. Som en följd av dettauppkommer nya behov och krav på den indirekta bekämpningsförmågan i form avprecisionsbekämpning.Syftet med föreliggande arbete är att kartlägga om, och till vilken grad, ettkurskorrigerande tändrör bidrar till att öka den taktiska effektiviteten förstådd somverkanseffektivitet, kostnadseffektivitet, logistisk effektivitet samt minskad oönskadsidoverkan. Kartläggningen sker genom en komparativ litteraturstudie medkompletterande expertintervjuer.Med hjälp av kurskorrigerande tändrör som medger nära precisionsbekämpning kanen rad vinster erhållas. Exempel på sådana vinster är minskad spridning samt ökaddimensionering av verkan, minskad risk för oönskad sidoverkan, en lägre totalkostnad för ammunition samt minskat behov av transporter genom ökad effekt av detenskilda skottet..

Abstract Over the years the consciousness of risk has grown. It?s hard to influence risks, therefore there are guidelines stating that significant risk must be included in the annual report. This paper is a case study; the purpose was to examine how four Swedish listed companies chose to disclose their internal and external risks. Risk is initially described in general sense and then it figures to what constitutes an economic risk.Through a case study of four Swedish listed companies? annual reports we have, through qualitative methods found how the companies chose to disclosure their risks.

Abstract Over the years the consciousness of risk has grown. It?s hard to influence risks, therefore there are guidelines stating that significant risk must be included in the annual report. This paper is a case study; the purpose was to examine how four Swedish listed companies chose to disclose their internal and external risks. Risk is initially described in general sense and then it figures to what constitutes an economic risk.Through a case study of four Swedish listed companies? annual reports we have, through qualitative methods found how the companies chose to disclosure their risks.

Abstract Over the years the consciousness of risk has grown. It?s hard to influence risks, therefore there are guidelines stating that significant risk must be included in the annual report. This paper is a case study; the purpose was to examine how four Swedish listed companies chose to disclose their internal and external risks. Risk is initially described in general sense and then it figures to what constitutes an economic risk.Through a case study of four Swedish listed companies? annual reports we have, through qualitative methods found how the companies chose to disclosure their risks.

Abstract Over the years the consciousness of risk has grown. It?s hard to influence risks, therefore there are guidelines stating that significant risk must be included in the annual report. This paper is a case study; the purpose was to examine how four Swedish listed companies chose to disclose their internal and external risks. Risk is initially described in general sense and then it figures to what constitutes an economic risk.Through a case study of four Swedish listed companies? annual reports we have, through qualitative methods found how the companies chose to disclosure their risks.

Acquiring a former station building can mean that the property owners must familiarize themselves with a lot of planning and building regulations. After the new Planning and Building Act code into force in 2011, the responsibility lie on the developer to ensure laws and regulations. Based on the regulatory framework that is available occurs sometimes balance issues, between care requirements and building codes. The station building in Ormaryd was acquired in 2009 by two individuals who intended to accommodate office and retail space in the building. In doing so a new local plan of the area was established, including regulations on how the building could be used. By including road safety and noise, the risk was not considered appropriate to use the station building for housing.