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1000 Uppsatser om Moisture; Solid wood; Vapour barrier - Sida 39 av 67
Bränsleoptimering av befintliga brikettpannor
Intresset för biobränsleproducerad energi har ökat i takt med att kunderna blivit mer miljömedvetna. På grund av detta har efterfrågan på briketter ökat samtidigt som träindustrin har haft det svårt i en sviktande konjunktur. Därför har ett examensarbete utförts i samarbete med E.ON Värme Sverige AB där undersökningar på bränslebyte i pannor avsedda för torra bränslen till fuktigare, stamvedflis har utfört.För denna undersökning har begränsningar införts på övre och undre effekt i form av uppehållstid och slutförbränningstemperatur. Intervallen är enbart beräknade på stamvedflis med 30 och 40 % fukthalt.Undersökning visar att det går bra att elda stamvedsflis i briketteldade pannor utan att emissionerna ökar så pass mycket att villkoren för anläggningarna överskrids om lasten hålls inom vissa intervall. Det möjliga effektintervallet ökar med minskad fukthalt på bränslet.Undersökningen har visat att det är bränslets kvalitet som är den mest begränsande faktorn..
Patentinformation ? användning och barriärer En studie av 33 små- och medelstora företag inom Svenska Uppfinnareföreningen
For innovative organizations and companies it is essential to use existing knowledge to avoid spending time and resources on already existing innovations. By using patent information, companies are able to get a picture of what is already done in their area of interest. The main purpose of the study is to examine the information use in small and medium-sized enterprises that are members of the Swedish Inventor?s Association, focusing on patent information. The study examines the use of patent information and which barriers the companies have to patent information.
Hussvamp : Skadeverkan och tänkbar ökning i Kronobergs län
Serpula lacrymans infestation has become an increasingly common problem, and is usually perceived as a tip of an iceberg.During the 21st century there has been a perceived increase of damage caused by serpula lacrymans, at AB Mats Fransson Saneringstjänst ? Anticimex in the county of Kronoberg. A similar increase has also been noted by employees at the offices in Kalmar, Karlstad, Piteå, Stockholm, Malmö, Söderhamn, Halmstad and Visby.The methods used to collect data for the project has been interviews with a number, for the project, relevant key persons, such as analysis engineers at Trygghansa and Anticimex, as well as personnel at the botanical institution at Gothenburg University and the Botaniska Analysgruppen in Gothenburg, further statistics from SMHI and analyses of reported instances of infestations have been used.The majority of the people interviewed believe that the increase is caused by renovations of old houses, higher precipitation during the summer months, as well as a moister climate and warmer winters. The latter can also be gleaned from statistics from SMHI concerning temperature, precipitation, and relative humidity.Analysed damage reports show that the most common cause for the infestation is ground moisture, even when combined wooden materials.Older houses that where built around 1900 are the ones most frequently infested with serpula lacrymans. The part of the building most frequently infested is the foundation, where cellars and suspended foundation are the most common types to be infested.
True wood
I arbetet med en stol har jag utgått från det ursprungliga i trä. Min vision har varit att bevara och lyfta fram materialets inneboende och primära egenskaper.Jag har formulerat en bild av detta:-En gåtfullhet ligger som dagg över stolen och speglar den magi man kan finna iskogens träd.Min tillverkning bygger på en ärlig utformning gentemot trädet. I vårt nutida Sverige med masskonsumtion av möbler glöms materialens ursprung bort. På grund av det högteknologiska raffinerandet av materialet döljs tillverkningsprocessen. Jag vill visa materialets ursprung och låta brukaren förstå att trä har varit levande.
E-utbildning inom idrotten - framtidens utbildningsform?
Education in Swedish sport is mainly based on traditional learning that requires a lot of time and effort, which could be a barrier for trainers since they report a lack of time as a consequence of their commitment as a leader. The Swedish sports movement has noticed some trends that could be seen as influential on the future directions of sport. One of these trends is a changing way of communication where people today communicate to a greater extent with the use of digital technology. The Swedish sports movement has to relate to this and follow the evolution. The use of e-learning has increased in higher education and organizations over the past decades.
Fuktstudie om uteluftsventilerade vindar med beräkningsprogrammet Simple Cold Attic Model från Annex 55
Fuktskador på uteluftsventilerade vindar är ett ökat problem, i det mer miljömedvetna Sverige. Genom tjockare vindsbjälklagsisolering minskar både energiförlusten genom bjälklaget och uppvärmningsbehovet i huset, men hur många funderar på vad som händer med det förändrade klimatet på vinden och hur det kan påverka fuktförhållandena i utsatta delar av konstruktionen.Studier från Chalmers Tekniska Högskola har framställt ett fuktberäkningsprogram för uteluftsventilerade vindar vid namn Simple Cold Attic Model. Programmets funktion och potential har prövats i denna rapport genom en beräkningsanalys av en uteluftsventilerad vindskonstruktion. Försök till att förbättra fuktsäkerheten i konstruktionen har utförts och redovisas i rapporten. Studien har påvisat att den studerade konstruktionen inte är fuktsäker om den uppförs i Stockholmsområdet. Det visades även att aktiva val i konstruktionen kan förebygga fuktskador. Studien har påvisat vikten av inte beräkna med medelår för klimat och hur det påverkar beräkningsresultatet av mögeltillväxt.
Måste det vara så komplicerat? : En undersökning av attityder till klarspråk
The purpose of this essay is to examine what literary heritage teachers communicate in the school subject Swedish at upper secondary school. The overall research question for this work is: Which authors and/or works are mentioned by the teachers in the school subject Swedish at upper secondary school? How well do these authors and/or works answer towards a multicultural perspective? Which factors affect teachers´ selections of texts? Based on this purpose and these research questions, the aim is to answer the didactic question of what.To accomplish the purpose of the study a quantitative method has been used. The survey was conducted in two medium-sized cities in central Sweden, and was answered by 17 teachers. The study shows that the teachers ascribe the Western and Swedish literature great importance.
-Villkorligt välkomna- En kvantitativ studie av civila integrationspolicys inverkan på immigrationen av icke EU-medborgare i Västeuropa
As scholars argue, there has been a rapid diffusion of civic integration policies in Western Europe the last decade. In the light of the debate about the extent of civic integration policies, recent studies have shown that the diffusion is limited to certain countries. Despite a flurry of literature based on civic integration policies, attention drawn to the implication of these policies has been quite inferior. This paper tries to examine what civic integration policies means in relation to immigration. Are civic integration policies used as an informal tool for the purpose of limiting certain groups of immigrants? I argue in this paper that the conditional factor in the civic integration policies creates a barrier for affected immigrants and their possibilities to gain long term residence.
Klimatkabinett : Komponenter och konstruktion
This report describes the construction of a climate-cabinet for testing of HV-cards (High Voltage) produced at VG Scienta. The main part of the report describes all the different components of the cabinet. The most important parts are a PID regulator from Eurotherm model 2408, a solid state contactor (SSC), a thermocouple, a finned resistor from DBK and different fans. The report even includes the connection between components by cable wiring, isolation, grounding, fuses and shaping of metal goods.As the cabinet also communicates with a computer, the report includes the solution of the data communication using the software iTools from Eurotherm. The communication part includes information about a converter that converts EIA422 to USB.The cabinet was produced at a company, called VG Scienta, in Uppsala during the spring 2010.
Verka utan att synas - eller bara osynlig? Kommunikatörens roll i den svenska a-kassan.
The purpose of the essay was to examine the role of the professional communicator in the Swedish Unemployment Funds. Focus was on measures carried out by the communicator to enhance and streamline communication and how the communicator supports their coworkers in their own communication role. In order to fulfill the purpose, two main questions were asked;? How do the communicators support and develop their coworkers communication role?? What to the communicators identify as challenges in their work in doing this?The theoretical base of the essay was Heide and Simonssons (2011) challenges for the professional communicator. The theory states that organizations communication processes are the foundation to its existence and development and that the professional communicator therefore needs a solid base with the possibility to monitor the whole organization.A questionnaire was sent to communicators in all Swedish Unemployment Funds and even though the non-response was rather considerable, the answers received was assessed sufficient to make an analysis.
Ethical impact on EU animal welfare policies : the example of Article 13
On December 1th 2009 the Lisbon Treaty entered into force, and through Article 13, the recognition of animals as sentient being was given a more visible part in the very core of EU law. This was an effect of a political decision to commit to the issue, partly because of the will to further harmonize the EU market, but also due to increased societal concern for the wellbeing of animals. Over the last decades, ethical awareness is growing in many countries, one reason being new scientific discovery. This influences legislators and policy makers to take proper action, and in this way, ethics and science often work together as the very basis for the development of new legislation and policies. There is yet to be seen what the actual consequences of Article 13 will be, since the legal obligation remains the same and there are still some reservations in it.
Aktivt handstativ för cirkuskonstnär
Denna rapport presenterar en utvecklad konceptlösning för ett stativ med katapultfunktion somska användas i cirkusdisciplinen handstans. Stativet är utvecklat för att skicka upp en akrobat,som väger 65 kg, en halv meter ovanför de rörliga stagens maxläge.Den kraft som akrobaten klarar av att hålla emot med och det beteende som krävs vid uppskjutetär framtaget och beräknat med hjälp av det matematiska programverktyget MATLAB.Konstruktionen modelleras i Solid Edge ST2 och hållfastheten beräknas i det modellbaseradefinita elementmetodsprogrammet Ansys Workbench. Pneumatik, hydraulik, mekatronik ochmekanik undersöks som möjliga alternativ till drivning för katapultfunktionen och utvärderasutifrån den ställda kravspecifikationen.Konceptet som presenteras har en ram av aluminium för att få god hållfasthet och samtidigt enlåg vikt vilket underlättar vid frakt. I ramverket är fyra stycken mekaniska dragfjädrar infästamellan ramens topp och två stycken linjärt lagrade stålstänger. Fjädrarna spänns ned med enelektrisk vinsch, fästs i en snabbkoppling och släpps sedan för att på så sätt skjuta upp akrobateni luften.
Analys av Nedbrytningsprodukter av Polymerer för Bitumenändamål
This project was aimed to study the degradation of polystyrene-butadiene-styrene block copolymer (SBS). SBS is used to modify bitumen, the binder in asphalt. From earlier studies it is known that SBS degrades in bitumen, but the degradation products have not been identified. To be able to determine the long term effects of SBS in the environment, degradation products need to be identified. Polystyrene forms rigid blocks with polybutadiene as a rubbery matrix between the ridgid blocks.
Underlag för BREEAM-certifiering : Kristianstad Nya Galleria
The company Olofsfors AB manufactures drive belts for forest machinery, known as ECO-Tracks, and abrasion-resistant steel and cutting edges for graders, excavators and tractors, known as Bruxite and SharqEdges. Manufacturing these products requires the steel to be heated and molded, then submerged in water and hardened. The water used in the hardening of steel is pumped to the process from pits below the floor and then pumped back to the pit after it?s been used. Since the temperature of this water rises after being used to harden the steel the temperature of the pumping pit needs to be adjusted to maintain its setpoint of 21°C.
Urvalsdesign för SCB:s undersökning av föetagens ekonomi
Tree fiber lengths controls properties like strength and smoothness in paper and other wood products. For forest researchers it is of interest to be able to determine the fiber lengths in standing trees. Mo?rling et al. (2003), among others, have developed methods to estimate fiber length distributions in standing trees without damaging them.