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Found 5 essays matching the above criteria.

1. 1. The kinetic characterization of mutated cyanobacterial dual-functioning fructose/sedoheptulose bisphosphate using a malachite green colorimetric assay

   University essay from Lunds universitet/Teknisk mikrobiologi

   Author : Albert Jousif Anis; [2021]
   Keywords : Cyanobacteria; carbon fixation; metabolic engineering; protein engineering; colorimetric enzyme assay; rational design; enzyme kinetics; applied microbiology; Biology and Life Sciences;

   Abstract : The increased human dependence on fossil-based fuels, industrial chemicals, and structural materials has caused a drastic increase in atmospheric CO2 levels during the past 50 years. Consequences of this have been observed in the disruption of terrestrial and aquatic ecosystems. READ MORE

3. 2. Chemical kinetics and transport of tropospheric trace compounds - implications for environment and air quality

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

   Author : Stina Ausmeel; [2015]
   Keywords : Physics and Astronomy;

   Abstract : Fourier transform infrared spectroscopy techniques were used to study the kinetics of gas-phase reactions of three lactones, γ-valerolactone (GVL), 2(5H)-furanone (2(5HF) and 3-methyl-2(5H)-furanone (3M2(5H)F) with Cl atoms, OH radicals and O3 respectively. The experiments were performed in a photochemical reactor at a total pressure of 700 Torr at room temperature (298±2 K). READ MORE

4. 3. Atmospheric reactivity of cyclic ethers of relevance to biofuel combustion

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Emelie Graham; [2015]
   Keywords : Ecosystem Science; Physical Geography; 2nd generation biofuels; furans; tropospheric chemistry; ozonolysis; atmospheric kinetics; computational chemistry; IR Spectroscopy; Atmospheric Science Biochemical Cycles; Earth and Environmental Sciences;

   Abstract : Biofuels are considered to be an environmental friendly alternative to fossil fuels as they have the potential to reduce the global emissions of greenhouse gases. Studies have showed that an increased use of ethanol could alter the atmospheric chemical composition and enhance urban ozone concentrations resulting in higher human mortality rates. READ MORE

5. 4. Furan - A Future Fuel and its Lifetime in Urban Air

   University essay from Lunds universitet/Fysiska institutionen

   Author : Emelie Graham; [2013]
   Keywords : Atmospheric science Tropospheric chemistry Kinetics Rate constant Absolute rate method Biofuels Furan Ozone; Physics and Astronomy; Chemistry; Earth and Environmental Sciences;

   Abstract : With a rising global mean temperature caused by increased emission of greenhouse gases into the atmosphere biofuels are considered as a possible solution to the greenhouse effect. One of the potential biofuels is furans and this report aims to determine their lifetime in polluted air. READ MORE

6. 5. Methane Oxidation in three Swedish Forest Soils

   University essay from SLU/Dept. of Soil and Environment

   Author : Kwesi Idun Osam; [2012]
   Keywords : methane; oxidation; forest; soils; methanotrophs; multi-carbon compounds; consumption;

   Abstract : Aerated soils are the largest sinks of atmospheric methane on the Earth’s surface. Methane removal from the atmosphere is performed through oxidation by microorganisms (methaneoxidising bacteria) in the soil. READ MORE