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549 Uppsatser om Timber transportation - Sida 34 av 37
Miljöarkeologi i Umeå stads hamn och slagfältsarkeologi på Krutbrånet : Två fallstudier inom historisk arkeologi i Umeås 1800-tal
This master thesis deals with two case studies in environmental archaeology and battlefield archaeology focusing on two major events in the late history of the Swedish coastal town Umeå and its nearby village Sävar. Established in the early 1600's, Umeå was known for its export of timber and import of cereals. The town has suffered from numerous fires, the fire in 1888 being the most devastating. Few written records of the town remain from before the 1900's. The latest war in Sweden's history is documented in historical sources and took place at Krutbrånet, Sävar where the Swedish troops suffered defeat against the russian forces in 1809.
Utveckling av substratmixen vid Mosseruds biogasanläggning : Substratkartläggning och rötningsförsök i laboratorieskala
The world?s growing need for energy together with a desire to ward off the worst consequences of global climate change has resulted in a never seen desire to invest resources in renewable energy sources. Biogas production through anaerobic digestion is one of those growing energy sources. In Sweden there are over two hundred plants that uses this biological process to break down organic substances while producing carbon dioxide and the energy-rich gas methane.This master?s thesis has focused on development of the mixture of different organic substances that is treated at a specific plant, namely Mosserud biogas plant.
Trädslagsinverkan på markvegetationens utveckling i odlingsförsök med tall och contorta :
In the 1970?s it was predicted that in the beginning of the 21st century there would be a timber shortage in Sweden and a large scale introduction of the exotic tree species lodgepole pine started. An introduction of a foreign tree species means a risk of a negative influence on the forests ecosystem. Today, the stands that were established in the 70?s are middle-aged and the effect on the forest floor vegetation can be studied.
Förutsättningar och hinder för att använda offentlig upphandling som styrmedel för en hållbar hantering av entreprenadberg
Large volumes of excavated soil and rock are generated in building- and construction projects. These materials need to be transported longer and longer distances due to the densifications of cities. The transportation affects the environment in terms of noise and emissions, but also makes high demands on road infrastructure. To reduce the transport distances an increased responsibility for the excavated rock generated needs to be taken. Responsibility can be increased through an introduction of means of control.
Användning av rötrest från kombinerad etanol och biogasproduktion : en jämförelse mellan tre alternativ
Scandinavian Biogas is involved in the planning of a combined ethanol and biogas factory in Karlskoga, Sweden. Besides biogas and ethanol large amounts of digester residues will be produced, about 450 000 liquid tonnes residue (~7,3 % Dry Substance( DS)). The objective of this thesis was to investigate possible uses of the residue from the biogas production process ScandgasEthanol developed by
Scandinavian Biogas, and to derive a methodological approach how to evaluate and compare handling systems. Three systems where proposed and compared in this thesis; spreading of the untreated residue as fertilizer (system 1), dewatering to a higher DS content to reduce transportation before spreading as fertilizer
(system 2) and production of a solid fuel by dewatering and drying the residue (system 3). The general conditions for the proposed systems were investigated in
terms of practical viability, economical aspects, environmental impact and energy inputs/outputs.
Värdesättning av småhustomter : En jämförelse mellan exploatörer och kunders värdesättning av småhustomter vid upprättandet av nya bostadsområden
When single-family lots are valued for development of new residential areas,the valuation is influenced by several factors. The valuation is a matter ofdefinition that varies according to its interpreter. Previous research conductedin other countries, has identified a number of value-influencing factors. Thesefactors are the basis for this study.The study's purpose is to highlight the value-influencing factors thatcustomers value and are looking for in the choice of single-family lots. Thestudy also seeks to determine if there is an unknown difference between howprofessionals and clients value single-family lots.The study showed that the value factors considered important for customersand also professionals are consistent and applicable with the factors reportedfrom previous research.
Effektivisering av produkionsflödet för stora cylinderrör på Företaget AB
This study was conducted in autumn 2008 on the Company AB, which is currently in a growth phase. The company manufactures hydraulic systems for the heavy vehicle industry and has annual sales of approximately 250 MSEK with 165 employees.The rapid growth and unchanged planning is the starting point for this report. It all began in 2005 when the company received an unusually large order. During this period, the first priority was to satisfy customers and all other focus was disregarded. This has primarily resulted in a messy production and long throughput times.
Sverige 2112 : Ett narrativ om hur arkitekturen kan utvecklas om världen går igenom stora förändringar på grund av klimatförändringarna. En linjär och vertikal stad.
Om världen till följd av klimatförändringarna blir mycket varmare kommer förutsättningarna för hur vi planerar städer, infrastruktur och jordbruk helt att vändas upp och ner. De delar av världen som idag står för världens livsmedelsproduktion kommer vid bara några graders förändring bli obrukbara som betes och odlingsmark. Dessa förändringar kan komma att starta konflikter, och stora flyktingströmmar som tillsammans med förändrade klimatzoner helt kommer att rita om världskartan. i Skandinavien är det då troligt att vi behöver bygga samhällen och städer för miljontals nya immigranter, och detta samtidigt som vi befinner oss mitt i den mest fruktbara jordbruksmarken i världen. Om hundra år måste vi dessutom, oavsett detta, dubbla livsmedelsproduktionen globalt sett.Vårt samhälle blir allt mer rörligt och infrastrukturen utvecklas i allt snabbare takt.
Salmonella prevalence in the poultry feed industry in Pakistan
Abstract
One of the leading causes of food borne infections in the world is due to Salmonella by con-suming poultry products including eggs and meat. According to US Food and Drug Admin-istration (2009), 2 to 4 million cases of Salmonellosis in humans occur every year only in US. Salmonella causes wide range of diseases with enteric and typhoid fever, food poisoning, di-arrhea and gastro-enteritis. Many serotypes of Salmonella do not have host specificity and cause disease in all kinds of animals and humans. Salmonella has capability to modify accord-ing to the changing environment and it can develop resistance against routine elimination practices of sanitation, chemical treatments and antibacterial drugs.
Newly established poultry industries in Pakistan are confronting various infectious diseases including Salmonellosis while in Sweden Salmonella prevalence in animal products con-sumed for humans is extremely low.
Utvärdering av Hultdins prototyp för portabel bro (drivningsbro) :
Stronger demand has been put on forestry to show environmental considerations during harvesting. This is especially for crossings of brooks with sensitive elements and great care should be observed when they are to be crossed during harvesting by logging machines. For that reason Hultdins has constructed a portable bridge that can be used for those occasions. The bridge has been developed in accordance with wishes from SCA forest, since they have a great deal of brooks in their forests and in private forests from where they buy part of their wood supply.
The aim for this report is to investigate if this portable bridge can be of interest for the forestry market. The research has been made at SCA skog in Medelpad and Norrskog in Medelpad.
Jämförande livscykelanalys av motsvarande tegel- och träkonstruktioner
Sedan 1900-talets mitt har användandet av tegelkonstruktioner i bostadsbyggandet minskat kraftigt; materialet har under modernismen upplevts otidsenligt och byggnadssättet har ansetts ineffektivt. Trots att kanalmurstekniken, som är en byggteknik med bärande tegelkonstruktion och högt isoleringsvärde, togs fram på 1930-talet för att följa hårdare energihushållningskrav, har ändå lätta träregelkonstruktioner dominerat det svenska småhusbyggandet.Kraven på energihushållning har under åren ökat successivt och livscykelanalysen (LCA) har utvecklats. LCA är en metodik som analyserar produkters eller tjänsters klimatbelastning ur livscykelperspektiv. Svårigheter har dock funnits i att omsätta metodiken på större komponenter än enskilda material. Därför har europastandarder tagits fram som enkom tjänar till att systematisera livscykelanalyser av hela byggnader och de kommer att följas i denna studie.Syftet med examensarbetet är att jämföra hur ett typhus med tegel som stommaterial belastar miljön under produktion och drift i en livscykel satt till 100 år, jämfört med ett motsvarande trätyphus.
Konceptarbete om skidbalk i kompositutförande till BVS10
This thesis has been performed at BAE Systems Hägglunds, which is located in Örnsköldsvik. Hägglunds has a wide background of engineering, where they have manufactured all from airplanes to lifting cranes. Currently they only produce track vehicles at Hägglunds, where they manufacture the CV90 and BVS10 models. This thesis concerns the BVS10 which is an all-terrain-vehicle. The main purpose with the BVS10 is to enable transportation of material and personnel thru tough terrain.
Predicting spawning bed erosion and longevity : a case study in tributaries to river Vindelälven, northern Sweden
Timber floating operations in Scandinavia during the 19th and 20th centuries has contributed to severe negative impacts on riverine ecosystems. Increase in water velocity and lack of stream bed heterogeneity as a result of stream channelization lead to increased bed load transport. Since availability and recruitment of new suitable spawning substrate in Scandinavian watercourses is sparse, spawning habitats for salmonids has become a scarce commodity. Lately, increasingly more attention has been given to the recreation and improvement of brown trout (Salmo trutta) spawning habitats in restoration projects. While much of the research on spawning habitat has been focused on evaluation of the influence that the constructed spawning grounds have on fish populations, few studies have been conducted to evaluate the persistence of these constructions over time.
I evaluate erosion of constructed spawning beds as an effect of sediment transport attributable to water discharge.
Beslutstödssystem använt av experter
Abstract
In this report I describe the Health Care Advice Bureau?s
(sjukvårdsrådgivningen) historical background, proposals for its development
according to a committee from the Blekinge County Council (Landstinget
Blekinge), the Health Care Advice Bureau?s cooperation with different external
operators e.g. the SOS and the Care Centers [Vårdcentraler].
I account for how I, in the same county council, aided by ethnographical
methods observed or investigated the following: The nurses? interaction with
the patients, the nurses? interaction among themselves, the nurses?
participation in the development of the system and also the computer based
system?s technical qualifications.
Kvalitativ analys av Holmen Skogs internprissättningsmodell :
Transfer pricing has attracted considerable interest among tax authorities in recent years. One of the reasons for this is that various countries have now begun to protect their own tax bases to a greater extent than they did in the past. Sweden has introduced a law on the documentation on the grounds that the tax office to review the pricing of transactions that occur within multinational corporations. The purpose of the law is that companies should apply a transfer pricing that meet arm's length principle, which means that internal pricing reflects market prices.
The EU Commission has, together with the EU member states formed a Forum, the EU Joint Transfer Pricing Forum (JTPF), since cross-border trade within groups constitute a threat to the internal market. The Forum has drawn up a code of conduct which includes a model of documentation.