Sök:

Sökresultat:

997 Uppsatser om Structural soil - Sida 22 av 67

Numerisk simulering av jordtryck mot rörbro ? Med tillämpning av programmet PLAXIS

This thesis deals with numerical simulation of earth pressure against tubular bridges in the software Plaxis. Plaxis is a FEM (Finite Element Method) software based on numerical calculations for which approximate solutions are developed through an iterative process. The program is specifically designed for soil and rock mechanical tests, such as voltage and deformation calculations in soil.The Royal Institute of Technology conducted in 2005, field tests on tubular bridges of corrugated steel, which was part of Ersa Bayoglu Fleners PhD (Bayoglu Flener, 2009). She studied how two different tubular bridges deformed during installation and filling. Tests and measurements were made during filling.

Ekologisk slaktgrisproduktion i Sverige :

This literature review describes organic pig production in Sweden, its advantages and disadvantages, but also how its problems can be reduced or solved. Organic pigs have the possibility to a more natural behaviour than conventional pigs. With outdoor pigs comes problems, especially during wintertime, concerning water and feed supply, thermal environment and supervision. Parasites and leakage of plant nutrients are other difficulties that comes with outdoor pigs. All problems and difficulties can be reduced or put right through correct management.

Fosforgödslingseffektivitet i långliggande bördighetsförsök

Rapid population growth and the fact that phosphorous is a limited resource implies that the question regarding an efficient use of phosphorus is of great importance, and consequently,that the phosphorous use efficiency should be as high as possible. The view on phosphorous use efficiency, and how this is calculated, has varied over time. This has had great implications on what type of research that has been conducted, which have resulted in an inconsistency between the academic?s view on the subject and recommendations received by farmers. The purpose of this paper is to calculate the phosphorus use efficiency in the Swedish long term fertility experiments.

Stålfiberarmerad betong för platta på mark : -En kostnads- och sprickbreddsanalys

AbstractToday there is an opportunity to reinforce concrete with steel fiber reinforcement. In some cases, completely replace the conventional reinforcement. Replacing conventional mesh reinforcement with steel fiber reinforcement in slabs on ground has shown economic benefits, less crack width and less reinforcement amount.Today there are no Swedish standard for designing steel fiber reinforced concrete, what is there is different international recommendations.In this work, design methods for steel fiber concrete are used according to RILEM and Bekaer Swedish AB's software DRAPRO. For other design methods Eurokod 2 is followed.In this work, the design of slabs on ground that are not exposed by large tension strength been designed. Design of crack-reinforcement and restrictions of crack width have been conducted in three different slabs on ground.The calculations have been performed using only conventional reinforcement and only steel fiber reinforcement, and the results are then compared.The results of the theoretical analysis are summarized in tables that compare the amount of reinforcement, crack width and economic cost.This work showed that the slabs on the ground reinforced with steel fibers provide less crack width with a minor amount of reinforcement.

Tvåspråkighetsutveckling: Albansk-/svensktalande ungdomar berättar om sin utveckling av tvåspråkighet utanför skolan

We consider the meaning of leisure time for the human linguistic and cultural development of great meaning, in particular association with bilingual. We are both bilingual and have had the privilege to use and develop our knowledge likewise our experience during our education.The purpose with our school essay is to investigate what the youth tell us about their bilingual development outside School time. Our target group is Albanian-/Swedish speakers from upper secondary youth. Based on our own experience we know that upper secondary School contributes to an increasing awareness about themself and their own language and identity.In our empirical study, have we used qualitative strategy and build our interview guide on the basis of the semi structural method. Furthermore we have carried out two different group interviews which consisted each between 6-7 interviewees.

Hur står det till med jämställdheten? : En kvalitativ studie om arbetet med jämställdhet på grundskolor i Kronobergs län

This study is an assignment from the council of Södra Småland county to investigate how equality between boys and girls progresses at compulsory schools in Kronoberg county. The study was undertaken to find suggestions on how work with equality could best be stimulated.The key question was to elaborate how a decentralized rule and structural context of an organisation can affect an implementation of political decisions. The methodological approach adopted can be defined as inductive, it was analysed how the respondents from some selected schools in Kronoberg county themselves relate to the concept of equality between men and women and their experience and understanding of how the concept of equality between sex is understood in their work at school.School-legislation today demands that active measures are undertaken to promote equality between boys and girls and in general almost all the respondents of my study describe equality as an utterly important question. My findings although, at the same time, indicate a gap between rhetoric and practice. The findings of my study suggest that structural relations and a decentralised organisation can constitute a hindrance for implementing equality between men and women in schools.

Spridning av släckvattenpartiklar : En studie på spridning av partiklar genererade från brand

During a fire large amounts of particles and unhealthy agents occur.  Polyaromatic hydrocarbons (PAH) and toxic metals are examples among many others. These agents have a capacity to bond to particles and when the fire is extinguished, the particles can be transferred with the extinguish water into the soil and to the groundwater.Recent studies in particles have been conducted. A study by Ulrika Iverfelt (2014) reviled that the particles from a fire contained large amounts of both PAH and metals, which is consistent with earlier analyses. Her column experiments with particles in the size ? 11 microns and ?100 microns in silica sand, reviled that the larger particles was immobilized because the transportation was influenced by sieving or physiochemical particle and surface interactions.The transport of the particles in soil and groundwater is regulated by two main mechanisms: physiochemical surface interactions and straining.

Glöm inte bort berättelsen : -en studie om intern storytelling

Authors: Marie Andersson, Maria Gustafsson and Johanna Olsson.Tutor: Peter CaesarTitle: Don?t forget the story ? a study about internal StorytellingKeywords: Internal Storytelling, Internal marketing, Communication, Organizational culture, Internal branding, Fellowship, Motivation, Participation.Background: Something that can be problematic for managers in an organization is to find an effective way to spread information that will received by all the employees. One way to spread information and messages to the employees is by using internal Storytelling. The use of internal Storytelling aims to create an environment to build up an engaged personnel. Organizations use internal Storytelling when they want to create collective stories and frame of references among the employees within the organization, and also spread the values of the brand and information about the organization.Problem statement: How can internal marketing be affected by internal Storytelling?Method: Our study is based on a case-study of SCA Packaging Sweden AB.

Skönlitteraturens genrer: En analys av två universella klassifikationssystem

The main aim in this Master thesis is to analyse how an ideological view may have influenced the shape of hierarchies with a specific concentration on the concept of fiction genre in the latest versions of the systems SAB and DDC. Our thesis is that no theoretical classification scheme can be recognized as objective. With an ideological/institutional perspective we look at the structures behind these systems. As a vehicle we use the hermeneutic circle to show the play between part and unit by focusing and analysing three different levels: the content level the concept level the ideological level. The first level is in the shape of a historical background and an analysis of concept with focus on content.

Intuition : En studie av beslutsfattande i mindre svenska företag

Background: Previous studies have shown that intuition occurs in decision making in small enterprises. However, these studies have not illuminated which decision attributes leads to intuitive decision making.Purpose:The purpose with this study is to contribute with an increased understanding of which decision attributes leads managers in small enterprises to use intuition in decision making and why these decisions attributes have an impact on the role of intuition. The follow-ing research question will be answered in our study: Which decision attributes leads to intui-tive decision making in small enterprises, and why?Method: To answer the research question we have conducted semi structural interviews with managers in small enterprises to achieve a deeper understanding of the role of intuition. We have also used a method called Visual Card Sorting as a complement to the semi structural interviews.Result/conclusion: The result of our study indicates that the relevance and the uncertainty of a decision have the greatest significance in the use of intuition in decision making in small enterprises.

Trygghet i stadens offentliga rum : diskurser, makt och möjligheter till förändring

Women experience, in a vaster extent than men, unsafety in urbanpublic spaces. This is a structural phenomenon, based on unequalpower relations. The theoretical starting-point for my thesis is that howwe choose to express ourselves shape the ways we can think about andunderstand society. In my thesis I study depictions of safety in six ofMalmö city?s action plans and guidelines towards increased safety.

Mitt i prick : Optimerad internkommunikation

As competing organizations struggle to become more effective, one field stands out as one of the vital keys to success; internal communication. Even small errors in information handling can end up into obstacles that seem impossible to overcome. Managers constantly need to adjust the internal communication to fit variables that mirror the structure of the organization. This thesis is a study about how and in what magnitude structure affects organization?s internal communication.We have done qualitative interviews with McDonald?s and Diesel, two different global organizations within the branch of service business.

Effekt av sönderdelningsgrad och planteringsdjup på uppkomsten från rhizom av Tussilago farfara :

Tussilago farfara, coltsfoot, is a troublesome perennial weed with deep lying rhizome, which can vegetatively generate new plants. The mechanical control of coltsfoot that is used today, "starvation", which consists of several cultivations of the soil, which fragmentises the rhizome. This results in production of new shoots, which leads to depletion of nutrient resources; as long the new plant is not allowed to establish. However, very little research has been done to investigate how the starving technique affects the regenerative ability of coltsfoot. The purpose of this experiment with coltsfoot was to investigate how fragmentation and burial depths affect the time of emergence, number of emerged shoots per rhizome fragment, number of shoots per node, and if the germination ability within nodes changes during the experiment.

Inventering av förorenad mark på LKAB's industriområden i Kiruna, Svappavaara och Malmberget

The county administration asked LKAB to make an inventory of possibly contaminated sites caused by their mining activity. The inventory should be performed according to the MIFO model, a method from SEPA which is used to assess a contaminated site. The first phase involves collection of information through interviews and site inspections and in phase 2 a general survey with field sampling is conducted.LKAB started the work with the first phase of the survey during 2003. During this project the information collected in Phase 1 was evaluated and 16 of the sites were chosen to proceed to MIFO Phase 2 (six sites in Kiruna, and 5 sites respectively in Svappavaara and Malmberget). The sampling of these 16 sites was performed during week 27 2004.

Inventering av förorenad mark på LKAB´s industriområden i Kiruna, Svappavaara och Malmberget :

The county administration asked LKAB to make an inventory of possibly contaminated sites caused by their mining activity. The inventory should be performed according to the MIFO model, a method from SEPA which is used to assess a contaminated site. The first phase involves collection of information through interviews and site inspections and in phase 2 a general survey with field sampling is conducted. LKAB started the work with the first phase of the survey during 2003. During this project the information collected in Phase 1 was evaluated and 16 of the sites were chosen to proceed to MIFO Phase 2 (six sites in Kiruna, and 5 sites respectively in Svappavaara and Malmberget). The sampling of these 16 sites was performed during week 27 2004.

<- Föregående sida 22 Nästa sida ->