Essays about: "particle number concentration"

Showing result 1 - 5 of 35 essays containing the words particle number concentration.

  1. 1. From Ocean to Table: Microplastic contamination in Nordic salts

    University essay from Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Author : Anna Nyika; [2023]
    Keywords : Microplastic MP ; MP pollution; plastic pollution; sea salt; rock salt; Nordics; Iceland; Denmark; plastic waste management; human health; marine environment.; Earth and Environmental Sciences;

    Abstract : Large amounts of plastic in the oceans originate from mismanaged plastic waste, and microplastics (MPs) are the most common type of waste. They can be found in household products, such as sea salts. Therefore, monitoring pollution levels is essential to improve marine health and food safety. READ MORE

  3. 2. Testing aerosol vertical profiling methods with portable instruments on unmanned and manned aircraft

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Ellen Grace Soroka; [2023]
    Keywords : Physical Geography; Ecosystem Analysis; Aerosols; Vertical Profile; Black Carbon; PM2.5; Nanoparticles; UAV; Drone; Master degree thesis; 30 credits in Atmospheric Science Biogeochemical Cycles; Earth and Environmental Sciences;

    Abstract : This thesis employed several portable sensors on board an unmanned aerial vehicle (UAV) and manned aircraft in order to test new methods of measuring vertical profiles of aerosol particles and contribute to knowledge of aerosol distributions in the atmosphere. More data in this area is required to improve atmospheric modelling and future climate scenarios. READ MORE

  4. 3. Influence of Peristaltic Pump Tubes on Protein Particles Formation for Lipase Enzyme Therapeutic Protein

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

    Author : Salah Elden Omer; [2023]
    Keywords : Dynamic Image analysis; Protein aggregation; Peristaltic pump tubing; Particle characterization; PVC tubing; Silicone tubing; Surfactant; QICPIC; Pharmaceutical technology; Biology and Life Sciences;

    Abstract : Introduction: In Bio-pharmaceutical production, peristaltic pump tubing is considered one of the factors that influence protein aggregation. Background: Protein particles present challenges for the control and analysis of various manufacturing processes in the biopharmaceutical industry for their significant effects on safety and quality. READ MORE

  5. 4. Effects of temperature and microplastic concentration on the consumption of microplastic particles by the detritivore Asellus aquaticus

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Yasmin Screech; [2023]
    Keywords : Microplastic; Asellus aquaticus; concentration; temperature; faecal pellets;

    Abstract : Microplastic (MP) pollution has now reached a point where particles can be found in every environmental compartment across the globe. However, the ecological and long-term consequences of MPs are largely unknown. READ MORE

  6. 5. Development of Nickel-Titanium Shape Memory Alloys using Electron Beam Melting

    University essay from KTH/Materialvetenskap

    Author : Georgios Manolios; [2022]
    Keywords : ;

    Abstract : In this project, the effect of electron beam melting on the behavior of NiTi shape memory alloyshas been studied, with focus on the effects of recycling powder within the process and theprocess parameters used and how “smoking” is affected. Flowability, powder characteristicsand chemical composition have been evaluated using imaging analysis techniques, Hallflowmeter measurements, FT4 powder rheometry and energy dispersive X-ray spectroscopyboth in virgin powder and in recycled powders. READ MORE