Sökning: "copper"

Visar resultat 1 - 5 av 510 uppsatser innehållade ordet copper.

  1. 1. Electroless Copper Plating to Achieve Solderless Connections

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Martin Noren; [2021]
    Nyckelord :electroless copper plating; solderless connections; non-solder; solderless; solder free;

    Sammanfattning : As the world has woken up to the change in climate in recent years, people's environmental concerns are forcing companies to change and find ways to manufacture products without harming nature. One area of serious concern is the electronics industries where an ever-increasing number of products gets updated with sensors and microcomputers to be part of the internet of things. LÄS MER

  2. 2. Material decomposition using a photon counting X-ray detector in low energy range

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Rasmus Solem; [2021]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Material decomposition in X-ray imaging is used to separate different materials or elements in an image and to quantify their respective concentration. The material decomposition and quantification are made possible by the dependency of attenuation on the attenuating material and photon energy. LÄS MER

  3. 3. Rocks in Vogue : on material flows within electronic devices

    Master-uppsats, Konstfack/Institutionen för design, inredningsarkitektur och visuell kommunikation (DIV)Konstfack/Industridesign

    Författare :Giorgia Burzio; [2021]
    Nyckelord :Design research; Material flows; Electronics; Energy; Battery; Care; Waste; Recycling; Craft; Critique; Landscape;

    Sammanfattning : Landscapes have been exploited and polluted by humans in order to obtain metals. Materials are treated as commodities: extracted, used inside our devices and appliances, then discarded as useless matter. The timespan of efficiency is shortened more and more due to obsolescence, material desire and constant innovation. LÄS MER

  4. 4. Multivariat dataanalys och gisutvärdering av metallsammansättningen i jord

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Julie Sandberg; [2021]
    Nyckelord :;

    Sammanfattning : This report was made to evaluate the multivariate data analysis as a tool to investigate the metal composition of soil with the use of principal component analysis (PCA), and in combination with GIS interpolation. Data with several variables and observations can be difficult to analyze with only descriptive diagrams. LÄS MER

  5. 5. Sorption of Stormwater Pollutants for Five Material Mixtures: A batch Equlibrium Study

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Fredrik Rydholm; [2021]
    Nyckelord :Sorption; Swale; Metals; Phosphorus; Treatment; Batch equilibrium test; isoterms; Low-cost material;

    Sammanfattning : Blue-green infrastructure have been more lucrative during the last 30 years, since urbanizationbrings more impervious surfaces that increases stormwater runoff volumes. Amongst thedifferent blue-green infrastructures there are e.g., constructed wetlands and swales. LÄS MER