Essays about: "chemistry of water"

Showing result 1 - 5 of 211 essays containing the words chemistry of water.

1. 1. Coverage increase in a plant-based BB cream formulation with natural pigments

   University essay from KTH/Kemi

   Author : Leelou Zoé Billot; [2024]
   Keywords : BB cream; Coffee; Coverage; Formulation; KAFFAGE®; BB cream; kaffe; täckning; formulering; KAFFAGE®;

   Abstract : Kaffe Bueno, ett bioteknologiskt start-up-företag dedikerat till framsteg inom naturliga och gröna produkter, fokuserar på att utnyttja den outnyttjade potentialen hos kaffebiprodukter genom grön kemi och bioteknik. Då endast 1% av kaffet används för bryggning, extraherar företaget lösliga och olösliga produkter genom en uppdelning mellan ett oljeutvinning och ett efterföljande vattenuttag, vilket bidrar till att sänka CO2-utsläppen per värde och en cirkulär ekonomi. READ MORE

3. 2. Gas Chromatographic Method Development for Analysis of Samples from a Carbon Capture Pilot Plant

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : David Wedin; [2024]
   Keywords : Carbon Capture and Storage; CCS; AMP DMSO; Gas Chromatography; amine absorption; analysis method development; Chemical Engineering; Chemistry;

   Abstract : In response to the escalating threat of climate change, carbon capture and storage have gained increasing attention as an important component in mitigating the global carbon dioxide emissions. Substantial research efforts have focused on enhancing the energy efficiency and availability of these technologies. READ MORE

4. 3. Exploring alternative surfactants to replace PEG within lipid nanoparticles

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master); Lunds universitet/Bioteknik (CI); Lunds universitet/Bioteknik (master)

   Author : Elina Edidovica; [2024]
   Keywords : Lipid nanoparticle; polyethelyne glycol PEG ; alpha-tomatine; N-hexadecyl beta d-maltoside HDM ; DOPC; DPPC; cholesterol; film hydration; stability study; DLS; Cryo-TEM; SAXS; pharmaceutical formulation; Chemistry;

   Abstract : Over the past decade an increasing amount of studies has demonstrated that PEGylation not only precipitates reductions in drug delivery efficiency but also triggers the immune system to produce antibodies, specifically anti-PEG antibodies. The objective of my thesis is to explore alternative surfactants that could viably replace PEG within lipid nanoparticles. READ MORE

5. 4. Coupling between iron and humic substances in a land-sea transitional zone in the northern Baltic Sea

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Anna Osterman; [2023]
   Keywords : Iron; Humic substances; Dissolved organic carbon; Baltic Sea; Rivers;

   Abstract : In marine ecosystems around the world, iron (Fe) is a well-studied and important trace element which has been found to stimulate phytoplankton and cyanobacteria growth, as well as limit nitrogen fixation and being essential for Legionella pneumophila which is known as the main cause of Legionnaires’ disease. Fe also contributes to the brownification of freshwater and has recently been documented to increase in concentration in rivers in Sweden. READ MORE

6. 5. A C++ Matrix library for computing the Gateaux derivative of the Fermi-Dirac operator

   University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

   Author : William Samuelsson; [2023]
   Keywords : C ; Quantum Chemistry; Matrix functions;

   Abstract : Computing the Fermi-Dirac operator is done through recursive polynomial expansions, using the SP2 and SP2 Acc algorithms. The Gateaux derivative is computed for both schemes by mapping the zeroth and first order matrices onto a block upper triangular matrix, which is implemented in Python using Numpy arrays to store full matrices and in C++ by first constructing a basic matrix library to use as blocks in a later created block upper triangular matrix library which only directly references two blocks in a 2 x 2 block matrix. READ MORE