Academic literature on the topic 'Kemisk analys'
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Journal articles on the topic "Kemisk analys"
Sri Wulandari, Wening, Dudung Darusman, Cecep Kusmana, and Widiatmaka Widiatmaka. "KAJIAN FINANSIAL PENGEMBANGAN BIODIESEL KEMIRI SUNAN (Reutealis trisperma (Blanco) Airy Shaw) PADA LAHAN TERSEDIA DI JAWA BARAT." Jurnal Penelitian Sosial dan Ekonomi Kehutanan 12, no. 1 (March 31, 2015): 31–42. http://dx.doi.org/10.20886/jpsek.2015.12.1.31-42.
Full textKolaas, Solveig Salthammer. "«Vi leker ikke teater!» Lærerfellesskapet i valgfaget produksjon for scene som profesjonelt kunnskapslandskap." Journal for Research in Arts and Sports Education 5, no. 1 (May 25, 2021): 1–15. http://dx.doi.org/10.23865/jased.v5.2724.
Full textHonée, Eugène. "Paul van Geest, Thomas a Kempis (1379/80-1471). Een studie van zijn mens- en godsbeeld. Analyse en tekstuitgave van de 'Hortulus Rosarum' en de 'Vallis Liliorum', Kampen (Kok), 1996, 487p." Nederlands Archief voor Kerkgeschiedenis / Dutch Review of Church History 79, no. 1 (1999): 111–13. http://dx.doi.org/10.1163/002820399x00269.
Full textLindawati, Lindawati. "Inquiry Learning Model to improve Social Studies Learning Outcomes in Class V SD Negeri 59 North Bengkulu." SEMAR Journal : Educations Studies 1, no. 1 (April 30, 2020): 15–31. http://dx.doi.org/10.37638/semar.1.1.15-31.
Full textKorhonen, Mikko, Marketta Rinne, and Pekka Huhtanen. "Lannoitusvasteet nurmirehuntuotannossa." Suomen Maataloustieteellisen Seuran Tiedote, no. 21 (January 31, 2006): 1–7. http://dx.doi.org/10.33354/smst.76027.
Full textBankauskiene, Nijole, and Ramunė Masaitytė. "APPLICATION OF ACTION RESEARCH IN THE TEACHING/LEARNING PROCESS FOR THE ACQUISITION AND DEVELOPMENT OF COMPETENCES: ATTITUDES OF STUDENTS - PROSPECTIVE TEACHERS." SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 2 (May 21, 2019): 27. http://dx.doi.org/10.17770/sie2019vol2.3794.
Full textDissertations / Theses on the topic "Kemisk analys"
Petersson, Rickard, and Rebecca Nilsson. "Karaktärisering av stålplåt : Metallografi och kemisk analys." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Maskinteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-36017.
Full textThe study has been conducted on a number of steel plates from different buildings of cultural and historical value. When old, cultural buildings are to be renovated, it must be done with as much knowledge as possible about the different parts of the building and the values that they represent. The problem that the study has aimed to solve has been an inadequate level of knowledge in regards to historical steel plates. Because of this, the study has been conducted to contribute with knowledge that could be used when old buildings are to be renovated.To achieve the purpose of contributing knowledge to guide renovations of culturally and historically valuable buildings, the goal of the study has been to analyze how the different plates have been made and what the results of those processes were.This has been carried out by conducting a metallography on all of the samples to analyze their microstructures and to gain an understanding of the materials. A chemical analysis has also been conducted on the contents of the materials by using optical emission spectroscopy.The results showed how big of a difference there was between different manufacturing methods and their consequences. By discovering the diversity of the properties of the plates the conclusion has been drawn that there is value in respecting the values of the older materials.By being conscious of how large the difference is between different types of steel sheets, better decisions can be made during choice of steel sheet, and it is more obvious how much history that is stored within the old plates.
Bornholm, Johanna. "Egyptens balsameringsteknik : en kemisk analys av organiska lämningar." Thesis, Stockholms universitet, Arkeologiska forskningslaboratoriet, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-87213.
Full textAxelsson, Patrik. "Analys och underhåll av komponenter i tuff kemisk miljö." Thesis, Högskolan i Gävle, Elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36564.
Full textThe thesis this report refers to has been carried out in one of Volvo Group truck operation’s(GTO) foundries in the engine factory in Skövde. Sandcasting is used to manufacture components for truck engines of cast iron. In the casting process, sandcores are manufactured according to the Epoxy-SO2-process. The sand cores are handled by robots in closed cells. The maintenance department experiences tha tcomponents on the robotic tools that move the cores have a short service life. One theory is that this is due to exposure to SO2. According to research, certain materials exposed to SO2 can corrode or become brittle. The corrosion process for metals can increase if SO2 react with water and oxygen to form sulfurous acid (H2SO3) or sulfuric acid (H2SO4). In order for thischemical process to begin, a relative humidity of at least 60% is required. Polymers such as plastic and rubber may swell, dissolve or become brittle upon exposed to SO2, H2SO3 or H2SO4. The final goal with this thesis is to define suitable components for the maintenance department that will be used in the renovation of the robotic tools. Before this can be done the tools need to be broken down to component level and be registered in a maintenance system. Furthermore, measurements of concentration of sulfur dioxide, humidity and temperature will be performed in the robotic cells. The results from the measurements are used as a basis for finding out if there are similar components that can withstand the environment better. When the tools are finally renovated, hopefully the unplanned stops will decrease. If the unplanned stops decrease, the maintenance costs associated with the robotic cells will also decrease. According to the measurements, the humidity was not high enough for the components in the robotic cells to risk corroding due to exposure to SO2. However, many pneumatic components are partly made of plastic that does not tolerate SO2. Many of these components are available as alternatives made of, for example, nickel-plated brass or stainless steel that can withstand the gas. The thesis has provided answers to the issues and led to concrete improvements. It has also created new ideas for continued improvement work.
Waldebäck, Monica. "Pressurized fluid extraction : a sustainable technique with added values /." Uppsala : Acta Universitatis Upsaliensis : Universitetsbiblioteket [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6022.
Full textLindmark, Oskar. "Multipla representationer inom kemisk bindning - en analys av läroböcker och ämnesrelaterade videor." Thesis, Umeå universitet, Institutionen för naturvetenskapernas och matematikens didaktik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-175986.
Full textEkstrand, Charlotte, and Camilla Hamberg. "Fosforsorptionskapaciteten i djupa jordlager : En kemisk analys av fosforadsorption i svenska grus- och sandjordar." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254165.
Full textThe eutrophication of our seas, lakes, and rivers is one of today's biggest threats to the aquatic environment. To counteract this, more knowledge concerning the behavior of phosphorus in soils and, more specifically, the efficiency of phosphate removal in sand and gravel soils is, greatly needed. This is particularly the case as most private wastewater systems (a considerable source of phosphorus leakage in Sweden) are based on infiltration beds consisting of sand and/or gravel soils. The objective of this research has been to determine the phosphorus sorption capacity of different sand or gravel-based soils. The study has been carried out using batch experiments and tools such as MS Excel and Visual MINTEQ, and the results were modeled according to the Freundlich equation. Chemical analysis equipment such as an ICP and AutoAnalyzer were also used to determine element concentrations in the soil samples. The results show that there is a positive linear logarithmic relationship between the amount of sorbed P and the amount of added P to the sample. It was concluded that the analyzed soils on average bound 0.56 mmol P per kg soil, or alternatively, 26.01 g P per m3 soil. Furthermore, it was found that the amount of sorbed P correlated linearly with the amount of oxalate-extractable Al and Fe in the soil sample. For most of the samples with a pH exceeding 8, precipitation of calcium-phosphates appeared to increase the amount of sorbed P. Since most Swedish mineral soils with a low organic content have a pH of 5.2-5.4, it can be argued that Al- and Fe-(hydr)oxides play a larger role in the adsorption of phosphorus than precipitation of calcium-phosphates. Further testing should be carried out to determine the pH-dependency, influence of soil depth, and influence of organic compounds on the phosphorus sorption capacity in sand- and gravel soils.
Biström, Freij Felicia. "De levandes gåvor och de dödas efterlämningar : -En kemisk analys på harts och ökendadel (Balanites aegyptiaca) från två egyptiska kärl." Thesis, Stockholms universitet, Arkeologiska forskningslaboratoriet, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-100139.
Full textSvedin, Evelina. "Utveckling av kursmoment för kemiundervisning : En undersökning av gymnasieelevers kunskapsutveckling i samband med lärandeaktiviteter rörande kemisk analys och hållbar utveckling." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263938.
Full textIn this research, the knowledge development of a group of high school students during a course component was studied. The course component, which consisted of four separate parts, was developed for this investigation. The students who participated in the investigation are all in year one in high school, and study at the Science programme. The course component was included in their chemistry course. The course component was developed to increase the students’ knowledge within selected topics from the curriculum, however, also to offer the postulation to develop Scientific Literacy, as well as to increase their ability to discuss societal issues while including a scientific perspective. To be able to carry out the investigation, two different data selections were accomplished. One where the students responded to a survey, where they had to reflect upon their own knowledge development, and another, where their subject knowledge was examined during the assessment of an assignment that they had to carry out as the last part of the course component. The instructions for the assignment was to first describe different analytical tools used in chemistry, and secondly, to narrate different solutions on how to deal with environmental issues, using a perspective of sustainable development. The conclusion drawn from this research is that the course component provided the students the opportunity to increase their knowledge and their strengthen abilities within the requested subject areas. However, it also emerged from the study that, if the different parts om the course component were to be adjusted, the result might have been more successful and the correlation between the course component and the main purposes for it to be carried out might had been stronger. The didactical process that has been carried out during this work has also been analysed. Hence, suggestions about how to reflect upon time requirements and work organisation if one, as a teacher, wishes to either implement this course component in their own tutoring, or do something similar, is presented in the end of this report.
Wallin, Erik Johnny. "Pärlorna på Gudings slott." Thesis, Stockholms universitet, Institutionen för arkeologi och antikens kultur, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-169525.
Full textNguyen, Kim, and Ida Enström. "Möjlighet för lokal regenerering av granulerat aktivt kol : Analys av regenereringsmetoder." Thesis, Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-102281.
Full textBooks on the topic "Kemisk analys"
Rivers, Isabel. Roman Catholic Influences. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198269960.003.0007.
Full textW, Mayo Dana, ed. Microscale techniques for the organic laboratory. New York: Wiley, 1991.
Find full textBook chapters on the topic "Kemisk analys"
Nyström, Ingalill, Anneli Palmsköld, and Johan Knutsson. "Hälsinglands inredningskultur som forskningsuppgift." In Hälsinglands inredningskultur, 14–16. Makadam, 2021. http://dx.doi.org/10.22188/kriterium.23.a.
Full textReports on the topic "Kemisk analys"
O'Sullivan, P. B. Preliminary results of 25 apatite fission track analyses of samples from the following 5 wells on the North Slope of Alaska: Lisburne Test Well #1, Seabee Test Well #1, Alaska State C-1, Prudhoe Bay Unit J-1, Kemik Unit #2. Alaska Division of Geological & Geophysical Surveys, 1990. http://dx.doi.org/10.14509/19017.
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