Essays about: "natural particles"

Showing result 1 - 5 of 73 essays containing the words natural particles.

  1. 1. Air quality prediction in metropolitan areas using deep learning methods

    University essay from Stockholms universitet/Institutionen för data- och systemvetenskap

    Author : Augustin Ionut Ionascu; [2023]
    Keywords : air quality; forecasting; time-series; univariate; multivariate; multi-step; Attention; Transformer;

    Abstract : The rapid growth of the world's urban population shows that people are increasingly moving to cities. In recent decades, the frequent occurrence of smog caused by increasing industrialization has brought environmental pollution to record highs. READ MORE

  3. 2. Synthesis of Organo-Iron(II) Complexes Including N-Heterocyclic Carbene Ligation as Solar Cell Material.

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Salim Charkas; [2023]
    Keywords : Dye-sensitized solar cell; Transition metal complex; Synthesis iron; N-heterocyclic carbene NHC ; Organic chemistry; Chemistry;

    Abstract : The push-pull design has been shown to increase DSC performance through the introduction of electron-withdrawing groups and electron-donating groups, usually on opposite far ends of the sensitizer. The scope of this thesis was to synthesize several pre-N-heterocyclic carbene ligand analogs that are inspired by the push-pull design in an attempt to investigate their susceptibility to Fe(II) complexation. READ MORE

  4. 3. Xylem Water Filtration

    University essay from Lunds universitet/Industridesign

    Author : David Wenner; [2023]
    Keywords : Technology and Engineering; Arts and Architecture;

    Abstract : This project explored the usage and effectiveness of a natural water filtration system using xylem from Picea Abies, or Norway Spruce. The project is concentrated on the region of southeast and south Asia where people suffer from water contamination, providing a concept of a water filter with comprehensive protection against waterborne diseases. READ MORE

  5. 4. MECHANICAL PROPERTIES AND TESTING OF A HYBRID COMPOSITE MATERIAL

    University essay from Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Author : ARJUN ANIL; JEEVAN JOSEPH; [2023]
    Keywords : ;

    Abstract : A composite is a structural material that consists of two or more combined constituents at amacroscopic level and are not soluble in each other. One constituent is called the reinforcingphase and the other in which it is embedded is called the matrix. The reinforcing phasematerial may be in the form of fibres, particles, or flakes to name a few. READ MORE

  6. 5. Techno-economic fesibility of a hybrid CSP (sCO2) - PV plant for hydrogen production

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Patricia Perez De La Calle; [2023]
    Keywords : Soec oxide electrolyzer cell SOEC ; Concentrated solar plant CSP ; Super critical cO2 sCO2 ; photovoltaic field PV ; Thermal storage TES ; electrolyzer; MoSES; high temperature electrolysis THE .;

    Abstract : The global need to eliminate CO2 emissions and its consequent reduction in the use of fossil fuels drives the ongoing energy transition that highly involves the research achievements of the scientific community to reach the goals of this purpose. Renewable sources like photovoltaic and wind energy, are central to this endeavor, however, the intermittency of natural resources makes it non-dispatchable and energy storage is fundamental. READ MORE