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Showing result 1 - 5 of 7 essays matching the above criteria.

  1. 1. A novel approach for functionalising and separating Tröger's Base Analogues

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Emil Jakobsson; [2023]
    Keywords : Tröger s Base; Synthesis; Chromatography; Supramolecular chemistry; Diastereomers; Organic chemistry; Chemistry;

    Abstract : Tröger’s Base (TB) is a bicyclic compound containing a methanodiazocine group between two aromatic rings. The methylene bridge forces the molecule to have a bent formation; thus, the aromatic rings are close to 90 degrees relative to each other, resulting in a rigid concave aromatic cavity. READ MORE

  3. 2. Analysis of high-voltage low-current DC/DC converters for electrohydrodynamic pumps

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Sigge Axelsson; Jonas Gartner; Axel Stafström; [2023]
    Keywords : high-voltage; low-current; low-power; DC DC; DC-DC; high-gain; converter; electrohydrodynamic pump; EHD; transformerless converter; Royer-based converter; resonant Royer oscillator; Cockroft-Walton voltage multiplier; CWVM; voltage multiplier; series-connected positive-negative voltage multiplier; SPNVM; planar air-core transformer; planar transformer; high-freqency Royer-based converter; overcurrent protection; LT8331; gallium nitride; GaN; planar PCB-integrated transformers;

    Abstract : Moving parts cause vibrations and tend to wear out. In applications where maintenance is complicated, solutions without moving parts are therefore advantageous. Electrohydrodynamic pumps are such a solution. Instead of mechanical propulsion, they use strong electric fields to induce movement in a dielectric cooling liquid. READ MORE

  4. 3. CCS via Electrochemical CO2 Reduction to Ethylene-based Polymeric Construction Materials

    University essay from KTH/Kemiteknik

    Author : Christian Taylor; [2021]
    Keywords : CCS; Electrochemical CO2 Reduction; CO2 to Ethylene; Power-to-X; Polymeric Construction Materials; Circular Carbon Economy; Electrolysis; CO2 electroreduction; CCS; Elektrokemisk CO2-reduktion; Koldioxid till Eten; Power-to-X; Polymera konstruktionsmaterial; Cirkulär kolekonomi; elektrolys; CO2-elektroreduktion;

    Abstract : IPCC SR15 rapporterade att alla framtida scenarier för att begränsa klimatförändringen till 1,5°C är starkt beroende av negativa utsläppstekniker, såsom geografisk CO2-lagring som används av Stockholm Exergi’s Värtaverket. Men kan man uppnå starkare klimatvinster genom en cirkulär koldioxidekonomi? Bildandet av en cirkulär koldioxidekonomi är absolut nödvändigt för att uppnå global koldioxidneutralitet, men hur kommer vi dit? Elektrolys av CO2 erbjuder en ekonomiskt och miljömässigt attraktiv väg för att uppgradera CO2-utsläpp till värdefulla bränslen och råvaror, vilket minskar användningen av fossila resurser och CO2-utsläpp till atmosfären. READ MORE

  5. 4. Soil reinforcement with geopolymer : A FEM study in the Old Town subway track adjacent to Söderströmsbron

    University essay from KTH/Byggteknik och design

    Author : Alexandra Mikha; Gina Radouani; [2020]
    Keywords : Plaxis 2D; Finite element analysis; geopolymer; interference-free reinforcement; Old Town; Plaxis 2D; finita element analys; geopolymer; störningsfri förstärkning; Gamla Stan;

    Abstract : Söderströmsbron is the bridge that leads the subway between Slussen and Gamla Stan in Stockholm, the capital of Sweden. It is one of the busiest routes in the entire SL traffic system. READ MORE

  6. 5. Unravelling International Student Mobility: A New Mobilities Perspective on International Student Mobility

    University essay from Lunds universitet/Institutionen för tjänstevetenskap

    Author : Johan Merlo; [2017]
    Keywords : International student mobility; International study motives; New mobilities; Lifestyle mobilities; Lifestyle travel; Social Sciences;

    Abstract : International students’ mobility has received increased appreciation for its role, and impact, in todays knowledge economy. This development has lead to an increase of tourism research aiming to understand student travel motives as such knowledge is paramount to the development of appropriate marketing strategies, services, and promotions. READ MORE