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3862 Uppsatser om Paper degradation - Sida 4 av 258
En j?mf?rande studie mellan tv? v?treng?ringsmetoder p? papper
Amongst the published literature researching wet cleaning of paper there is a limited amount of
studies conducted researching the method simmering water treatment. There are even less studies
conducted on how simmering water affects the paper being treated when used as a cleaning method.
Despite the limited research, there are literary reviews describing the method and suggesting it as an
alternative for conservation of paper with iron-gall ink. The following study will therefore be
examining, the somewhat unusual method, simmering water treatment, and comparing it to one of
the more common wet cleaning methods: immersion washing. This is done to compare how the
different temperatures of the water affect the paper.
The types of paper used in this study consists of three dyed and four undyed papers. All of the papers
are new, apart from one sample originating from 1847.
Local forest governance and benefit sharing from reduced emissions from deforestation and forest degradation (REDD) : case study from Burkina Faso
Africa is one of the regions most affected by climate change. However its forests are important carbon sinks for the whole world, and if recognised as a global public good, could be conserved and contribute to green house gas emission reductions. A global mechanism, Reduced Emissions from Deforestation and forest Degradation(REDD+) aims to help developing countries in reducing emissions from deforestation and forest degradation, and enhancement of carbon stocks. REDD+ strategies may, however exclude local forest dependent communities from forests in order to conserve and maximise carbon stocks, thus having a severe impact on local livelihoods. Therefore, how local communities can participate and share benefits from REDD+ is a key concern.This study investigates how three forest dependent communities in the Nazinon forest, in Southwest Burkina Faso could financially benefit from a REDD+ project.
Produktivitetshöjande åtgärder vid mantelsektionstillverkning hos Metso Paper AB: en förstudie
Metso Paper Sundsvall AB är ett tillverkande företag som ingår i den globala Metsokoncernen. Tillverkning i Sundsvall är inriktad på produktion av komplett utrustning för hela processkedjan inom pappersmassaindustrin. Huvudprodukten TwinRoll-press är en tvättpress som används för mekanisk separation av vätska och pappersmassa. ....
Det förändrade underlivet : En undersökning om kosmetisk intimkirurgi borde omfattas av lagen mot könsstympning
The swedish law against female genital mutilation (FGM) prohibits procedures that removes parts of the female genitalia and thereby makes permanent changes in the body. The problem with the wording of the law is that it may also apply to the western phenomenon cosmetic genital surgery. This paper therefore examines if cosmetic genital surgery should be covered by the swedish law against FGM, by making a critical comparing analysis. The paper begins with comparing FGM with cosmetic genital surgery to prove that there are more similarities than differences between the procedures. By using the theoretical perspectives universalism and postcolonialism, the paper then examines why, particularly in the West, there is a different approach to FGM than to cosmetic genital surgery, regardless of the similarities of the procedures.
Avsättningar i pappersmaskiner : Utbildning och förslag till processförbättringar
Deposits can be formed in the paper machine due to sticky materials from wood and recycled paper. These deposits get stuck on process equipment and cause the product quality to deteriorate and the efficiency of the paper machine is reduced. The purpose of this thesis is to increase the understanding about deposits among machine operators, and to suggest methods that can be used to reduce the amount of deposits formed in Bravikens paper machines.To fulfill the purpose of the thesis a pre-study, a literature review and interviews with machine operators and production staff, were carried out. These methods led to the planning and creation of an education about deposits for machine operators.The education about deposits for machine operators consisted of an interactive lecture to introduce the subject of deposits and a subsequent discussion. This approach was chosen to give the machine operators the opportunity to discuss their work situation on the paper machines related to their new knowledge about deposits.
C# - Framtidens språk???
This paper is about the new programming language from Microsoft, C# (See Sharp)
and the
.NET Framework. They are still in beta-version, but will be released on the
market in
February 2002. This paper presents C#, not in detail but the characteristics
that distinguish the
language. A comparison is done with C++ and Java, since C# is most resembling
to these
languages. Both C# and Java have been developed from the mother- language C++.
Flerskiktat papper : en sammanställning av historia, teknik och forskningsresultat
Until the beginning of the 1900:th century the paper making process was handicraft. The paper machines that have been developed since then are as impressing in size as fascinating when it comes to the technique. The process has always been improved to give a better paper for lower costs, with as short manufacture time as possible. Stratified forming has been a reality since 1830. From the beginning it was applied to board and paperboard.
Metabolism av mykotoxiner i våmmen
SammanfattningMykotoxiner är sekundära metaboliter som kan bildas av vissa mögelsvampar. Idisslare har generellt ett högre skydd mot mykotoxiner än vad enkelmagade djur har då våmmens mikroorganismer kan fungera som ett extra skydd mot mykotoxikos. Trichotecenerna deoxynivalenol och T-2 toxin bryts ner till de-epoxymetaboliter i våmmen genom att dess toxiska epoxyring spjälkas bort. Deoxynivalenol metaboliseras helt eller delvis av våmmens mikroorganismer, medan T-2 toxinets nedbrytningskapacitet inte är lika hög. Aflatoxin B1 har en låg nedbrytbarhet, och inga metaboliter har kunnat detekteras i våmmen.
"Du ska se oss på idrotten" : En studie i hur flickor och pojkar tar plats i idrotts- och svenskundervisning
In this paper an upper level compulsory school is examined from a gender perspective. The purpose of the paper is to analyse how girls and boys acquire space in the classroom (during a Swedish lesson) and in the sports hall (during a lesson in physical education). To fullfil the purpose of this paper a seventh grade class was observed during a lesson in Swedish as well as in sports. In addition to this on pupil was interviewed. In this paper the results are compared to and measured against results from earlier research in the field. Used as a theoretical basis are Simone de Beauvoir?s theories on gender.The results attained indicate that girls and boys claims space in different ways during time in the classroom as well as in the sports hall.
Arbeta inteam(t) : En studie om team och teamarbete
AbstractThis is the paper you should read if you want to know more about working in team. Teamwork is a way of working and it increases more and more among societies and companies today, but it is not quite clear what the diffrences is from working in groups. We have in this paper tried to clear out the differences between groups and team, and we have also tried to give an oversight of how to work in team in organizations. Cultures of organizations, leadership and power and also development of qualifications are big parts of an organization´s daily work, and we have explained these concepts from a teamperspective.We have, in this paper, done interviews with people that have been in contact with the central consepts that we use. And then we have analyzed their answers with help from litterature, which we have closely studied, thereafter we have presented our results.
Degraderade städer - En studie av urbanitet hos städer i Polen som förlorat sina stadsrättigheter
Using the example of 55 former towns in Greater Poland, the author investigates the belief thattowns formerly deprived of town privileges are the most likely to be qualified as future formalurban entities. This paper approaches the subject of urban deprivation and restitution with amultiaspectual study of the concept of urbanity. Since a preponderance of Polish degraded townspossess a prominent urban physical structure, the study focuses mainly on urban morphology as acontributing factor to urbanity. Other approaches include the central place theory, demographicconditions and the role of urban perception. Taking into account Poland?s shifting geopoliticalhistory the study also seeks to identify and explain spatial patterns of varying degrees of urbanityamong the studied towns.
Analys av meningsskapandet i Hannah Ho?chs fotomontage Schnitt mit dem ku?chenmesser Dada durch die letzte weimaren bierbauchkulturepoche Deutschlands
This paper examines Hannah Ho?chs photomontage Schnitt mit dem Ku?chenmesser Dada durch die letzte weimaren bierbauchkulturepoche Deutschlands. The paper has as its aims to understand and analyze the predominated allegorical interpretation of Schnitt and to develop a logic how meaning is produced when a viewer look at Schnitts surface. The paper finds that the predominated interpretation has been arbitrarily created out of a specific spectator that acts in a specific context and conclude instead that the predominated interpretation should be understood as a potential interpretation by a potential viewer. The paper continues to create an understanding of Schnitt as a flatbed picture to establish that as a postulate and to use it in the later semiotic dissection of Schnitts surface.
Från reklamjippo till pedagogiskt verktyg : ett lärarperspektiv på datoriseringen av skolan
Today it is more and more common for schools to provide teachers as well as students with laptops. Projects like this are worldwide called "One-to-one", one laptop per child. This paper conveys thoughts and ideas from a number of teachers in a medium-sized Swedish municipality in which all high school students and teachers, since a couple of years, have their own laptops. The aim of this paper is to clarify how the teachers? situation has been affected by the implementations of the laptops.
Hur skiljer sig kunskapssynen och examinationer i Kenya och Sverige?
This paper is about how the perception of knowledge and examinations differs in two different countries, Sweden and Kenya. The purpose of the paper is to examine similarities and differences in the two countries school systems, and to study the teachers? role in students? development. In the literature study I find out what different authors explains different types of knowledge and how important the teachers? role is for students? development.
Fågel, Fisk och mitt i mellan- Osteologisk analys av materialet från mesolitiska-neolitiska boplatsen Sjöholmen.
This paper deals with the food economy in the Mesolithic ? Neolithic settlement Sjöholmenfrom excavation in 1961 lead by Ingeborg Tillander. This material has been compared withthe material from Ringsjöholm and Ageröd V since these places are situated near each other.The paper has three different parts there we go deeper in to birds, beaver and small vertebrae,fishes and carnivores. Another large part in the paper are taphonomic processes, faunal historyand previous research about Sjöholmen..