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999 Uppsatser om Simulation techniques - Sida 38 av 67
FE-modellering av hjullast på sandwichpanel
This bachelor thesis in mechanical engineering was performed during the spring2015 in collaboration with Composite Consulting Group in Laholm. TheComposites Consulting Group works mainly with design and details of differentcomposite projects, their main area is FE-calculations, 3D-modelling andmechanical tests with composite materials.The aim of this bachelor thesis was to simplify the calculation process of solidmechanics for sandwich panels by simulation with computer software. The goalwas to decrease the time for the design and calculation process of the constructionand the cost of the practical tests. Our task was to build a static three dimensionalmodel with the computer software Abaqus, where the result should correspondwith the practical pressure tests in laboratory.The project started with collection of material data from Composites ConsultingGroup and by learning the software Abaqus, simultaneously a specification wasdeveloped in corporation with the company. Later on, a static wheel pressuremodel in the software Abaqus was produced which simulated the behavior of thesandwich panel during static wheel-pressure by a pallet truck.
Skärvor i både vått och torrt : En detaljundersökning av ett provschakts keramik vid Ajvidelokalens västra strand
This thesis has had its focus on ceramic shards found in a trench by the late neolithic western shore of the Ajvide site. The purpose of the thesis is to investigate if there are changes in the pottery between the test trench and the ceramics found by the graves, known as the main site. The author has compared the ornaments from the test trench with an ornament schedule made from over 50 000 shards from the assumed main site. Not only changes regarding ornaments has been noticed but also new techniques and raw material. The author has also implemented two 14C datings which backs his hypothesis that the shards from the test trench are younger than the shards that made the earlier ornament schedule.
Ett liv med figurer : En utställning om minnen och föremål
This thesis is based on an exhibition at the county museum Upplandsmuseet in Uppsala, Sweden. During an internship at this museum I got a chance to produce an exhibition, with some guidance from the museum staff. This exhibition was created with the purpose of teaching about agriculture in the late 19th century and also about the magnificent workmanship of Alrik Klingberg, who have carved these wooden objects for over 50 years. Each one of the objects possesses a story and a memory. The memories that Alrik Klingberg has incorporated into the objects are mainly from his childhood at a croft in northern Uppland.
Att arbeta med pedagogisk dokumentation för att överbrygga klyftan mellan teori och praktik : Ett undervisningsförsök för att skapa större förståelse i frisörutbildningen
The aim of this project was to change the way cutting techniques are being taught. I wished to try a method which I believed to enhance my students´ participation and understanding of their education. My purpose was to reduce the gap between theory and practice. After conducting a learning style test I found that most of them considered the best way for them to learn was by combining practice with dialogue and reflection of the tasks being done. That is why we tried to start working with the practical elements rather than traditionally starting with the theoretical aspects, while carefully intertwining terms and language of the trade into the education.
Omkonstruktion av armled tillhörande Bracke Forest högläggare
One of the main tasks of the Swedish Armed Forces over the past few years has been International assignments, which increased the importance of the Lessons Learned process. Methods of simulator training with computers have become more frequent and the technical ability to collect digital data from sensors has been developed as well. This work demonstrates how the experience of Lessons Learned can be communicated with the computer simulator StriSimPC and how modern technology in future support experiences from the Lessons Learned process at the tactical level in the Army.Currently knowledge sharing consists of several processes and strategies in the Swedish Armed Forces. This is done by written reports, oral presentations and different practical exercises.This case study shows the functions of the simulator StriSimPC, methods of training and how it is used today. The study also describes the future opportunities, where digital metadata acquired from the modern combat vehicles could contribute sharing of experience in the Lessons Learned process.The summarized conclusions indicate that StriSimPC can combine the two strategies for personalization and codification of knowledge transfer to reach a higher level of learning.
Svenska nyhetssöktjänster på webben: En utvärdering av Yahoo! Nyheter och Sesams återvinningseffektivitet
The aim of this Master?s thesis is to examine the retrieval performance of two search engines, Yahoo! News and Sesam, specialized on indexing news articles in Swedish. Thirty search questions were used in this study, divided into three different categories: domestic news, amusement and sport. Precision has been calculated both for the 30 search questions as a total and for the three categories as well. Precision was calculated at every DCV-level and then divided with the number of search questions used, in an attempt to reach an average measure.
Oljudens musik : En revolution i kompositionsteknik?
Noise music is created around sounds not often welcome in a musical context. Since the birth of electronic music in the 1950s a new perspective on composing has emerged. In electronic music, sounds and their timbre are as much important as melody, harmony and rhythm. This composing perspective is not often observed. Therefore I have examined a musical genre that stretches the boundaries of what we consider music, sound, noise, beautiful and terrible.
Simulera mera : Ger övning färdighet?
Bakgrund: Kommunikation mellan personal inom hälso- och sjukvården är viktiga faktorer för att kunna garantera patienten säker vård. Sjuksköterskan ska ha kompetens att kunna fördela och koordinera uppgifter samt ha översikt av teamarbetet. Sjuksköterskan bör ha kunskap om säkerhetsarbete för att kunna garantera säker vård. Det finns ett uttryckt behov inom vården av relevanta och tidsenliga lag- och kommunikationsövningar, där teambaserade simulatorövningar framstår som en pedagogisk och tillförlitlig inlärningsmetod. Syfte: Att beskriva vad studenter vid ett lärosäte, som utbildar sig till specialistsjuksköterskor inom intensivvård, anser om teambaserad fullskalesimulatorträning.
Cryopreservation of Oocytes : Comparison between the Cryoloop and the Cryopette vitrification techniques
Crypreservation of oocytes is recently being considered to be a valid choice in infertility treatments.Low survival and fertilization rates due to inefficient slow freeze protocols have been the outcome ofmany previous studies done in the field. However, introduction of the vitrification technique and itsapplication in reproductive medicine and to some extent new improved slow freeze protocols haveshown that oocytes can be cryopreserved with successful outcome.In this project the survival rate of oocytes after vitrification with MediCult Vitrification andWarming Media has been studied. Also, a comparison of the carriers Cryoloop (an open system) andCryopette (a closed system) has been performed.A total of 43 oocytes were vitrified and warmed according to MediCult's protocol, of which 21oocytes with Cryoloop and 22 with Cryopette. The cells were post-thaw incubated in a physiologicalenvironment for 24h. During that time the morphology and viability were observed and noted after 2h,over night and after 24h.
Elevers stress : En studie på grundskolans senare år om elevers upplevelser av stress och hur de tror att man kan reducera den
Students? experience of stress is generally considered to be an isolated problem, caused by school work. Students? experience of stress at school can also be affected by exterior influences.This research aims to discover what factors Swedish students, age 13 ? 16, experience as stressful. It also aims to describe how students believe this stress can be reduced.
Den livgivande elden och det livsviktiga bränslet : Bruket av eld och behovet av bränsle på mesolitiska och tidigneolitiska boplatser i Norrland.
Research on Stone Age hunters and gatherers in Norrland has been lively since the 1960s. Central to this research are questions about the organization of society, sedentariness, continuity and resource management. One central part of life in the taiga is the need for fire and fuel. This aspect has been little discussed in conjunction with the mentioned research questions. My goal is to show that the matter of fire and fuel is an important one that needs to be taken in to consideration when discussing Stone Age Norrland and hunter/gatherers.
Är det en anka eller en kanin? - Fildelning som brott eller uppror, rätt eller fel
The purpose of this paper has been to explore how Swedish users of the file-sharing software Direct Connect perceive their own situation and the file-sharing phenomenon. In addition to ascertain what attitudes prevail in the file-sharing culture and what knowledge file-sharers have regarding the relevant Swedish legislation. The questions central to my area of interest were: - Why do file-sharers use the program Direct Connect? - What knowledge do file-sharers have of the relevant legislation in Sweden? - What attitudes prevail in the file-sharing culture? - Is file-sharing behaviour affected by an individuals experience and/or level of knowledge? I compared the results of my survey with earlier surveys done. In addition I compared categories within the file-sharing group such as gender, age, experience and level of knowledge to determine if there were any patterns within or differences between the groups.
Trä och fukt ? Mätmetoder för fuktrelaterade dimensionsförändringar hos trä och deras användbarhet, med två fallstudier inom konservering
This thesis deals with different methods for measuring moisture-related dimensional changes ofwood. Typically relative humidity is measured to determine if the ambient climate around anobject is harmful to it or not. Values between 40 to 65% RH are recommended for hygroscopicmaterials. To know how a wooden object actually reacts to changes in the surroundingenvironment requires methods that involve the object itself. Because of the wood anisotropy,differences in wood structure, finishes and other restraints, it is not always possible to predict themovements.This paper addresses various measurement methods, primarily methods that have been testedin the field of conservation, with examples of their use.
INDIVIDUELLT LÄRANDE I TEAM - En studie av lärstilars inverkan på lärande, effektivitet och prestation
Organizational learning has become more and more important in the last decades as the environment in which organizations exist continues to change rapidly and unexpectedly. In order for organizational learning to happen, the individuals within the organization must learn. Just as different individuals possess different skills, each individual also has their own learning style. As the use of teamwork increases, so does the need for techniques to put high performing teams together and with organizational learning as one of the objectives the question is, how do we maximize learning, efficiency and performance in teams? This study uses a quantitative method to examine how teams, from a course at the Stockholm School of Economics, perform on the individual learning, team efficiency and team performance scale based on the individual learning styles within the team.
På låtsas och på riktigt. Verklighetsnära lärande i Freinetpedagogik och entreprenöriell pedagogik
Structuring education so that students can discover connections between schoolwork and their everyday lives is a crucial task for a teacher. This is especially true in today?s school system that seeks to foster a spirit of lifelong learning, since educational motivation depends on being able to connect to the tasks at hand. In a system where these connections are not present, students will be motivated only by institutional mechanisms such as test results and grades. This leads to them using a number of techniques for ?optimizing the system? by getting maximal results for minimal effort.
This essay looks at two pedagogical movements that aim to decrease the gap between schoolwork and students? reality.