Essays about: "cement"

Showing result 1 - 5 of 161 essays containing the word cement.

  1. 1. To innovate or not - that is the question A study investigating how the number of patents applications has been affected by the EU ETS

    University essay from Göteborgs universitet/Graduate School

    Author : Alma Hemberg; [2021-08-23]
    Keywords : aviation; business enterprise investments; cement; difference-in-differences; emissions; environmental regulation; EPO; Espacenet; the EU ETS; GDP growth; gross domestic investments; innovation; IPC; manufacturing of iron and steel; OECD; patent applications; patents; Porter Hypothesis; R D;

    Abstract : MSc in Economics.... READ MORE

  2. 2. Development of grout for deep shaft

    University essay from KTH/Byggteknik och design

    Author : Karl Lindberg; Adam von Krusenstierna; [2021]
    Keywords : Rock injection; Grout; Shaft; Laboration; Cement; Cement mixture; Bergsinjektering; Injekteringsbruk; Schakt; Laboration; Cement; Cementblandning;

    Abstract : In tunnel engineering one of the most important factors are the groundwater flow. To solve this problem a method called grouting is commonly used. In this study grout mixes are developed based on specific requirements for a deep shaft located next to a body of water. READ MORE


    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Vita Xu; [2021]
    Keywords : Sustainable Development; microalgae technology; algal biofuel; carbon capture; energy production;

    Abstract : Due to the increasing climate change concerns, biofuels have attracted more attention in the energy field as potential alternative energy sources. Particularly, microalgal biofuel has stood out because of its higher fuel yield potential and lower water and land demand than terrestrial biomass. READ MORE

  4. 4. Mechanical Properties of Calcium Phosphate and Additively Manufactured Titanium Alloy for Composite Spinal Implants

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Josephine Lantz; [2021]
    Keywords : calcium phosphate; titanium; spinal implant; tensile testing; compression tests; 4-point-bending; finite element analysis; topology optimisation;

    Abstract : One of the major health problems in western societies is back pain, with a prevalence rate of 49%–80%. In many cases, the back pain is due to degenerated discs. The gold standard to treat a severely degenerated disc is spinal fusion, where the vertebral disc is replaced with a cage structure. READ MORE

  5. 5. Geochemical tracing of Arsenic sources in groundwater at the remediated Storliden mine, Skellefte district

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Matilda Edvardsson; [2021]
    Keywords : Arsenic; groundwater; Sulfide oxidation; Arsenopyrite; Storliden; remediation; Arsenik; grundvatten; sulfidoxidation; Arsenikkis; Storliden; efterbehandling;

    Abstract : The Swedish mining industry has changed from the historical situation with several smaller mines to the present situation with a few, bigger mines. This results in presence of abandoned mines around Sweden. Remediation of mines is regulated by legislation and the present demands are considerably higher than it was some decades ago. READ MORE