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Showing result 1 - 5 of 44 essays matching the above criteria.

  1. 1. Understanding Sustainability Transitions: The Perspective of Innovators in incumbent firms - A case study of the roles and challenges faced by innovators and incumbent firms

    University essay from Göteborgs universitet/Graduate School

    Author : Marcus Källström; [2023-07-20]
    Keywords : Sustainability transitions; Transitions; Sustainability; Innovators; Incumbent firms; Multi-level perspective; Regime innovation; Role of innovators; Transition roles;

    Abstract : Creating green sustainable innovation is a step in the right direction towards a sustainable future. It is however not sure that incremental improvements will be enough, it is instead called for radical shifts in socio-technical systems, so called sustainability transitions. READ MORE

  3. 2. THRIVE - with heritage to sustainability

    University essay from Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Ralph Frühwirth; Martyna Idasiak; [2023]
    Keywords : urban design; architecture; landscape architecture; sustainability; portugal; lisbon; mouraria; heritage; climate change; heat waves; water management; cities; urbanity; housing; environment; local life; urban rehabilitation; green jobs; solar energy; traffic management; biodiversity; Arts and Architecture; Earth and Environmental Sciences; History and Archaeology; Social Sciences; Technology and Engineering; General Works; Science General;

    Abstract : The historic urban area of Lisbon emerged during the Middle Ages and was the origin of the development of a rather small neighbourhood, Mouraria. Not only did it count as the centre of the capital, but because of Lisbon being the metropolis of the Portuguese empire, Mouraria is now home to a diverse group of people, whose culture influences its special characteristics to this day. READ MORE

  4. 3. Status Mapping of tank to grave management of Low-GWP refrigerants.

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

    Author : Sandra Parra Gimeno; [2023]
    Keywords : Refrigerant; Blends; Synthetic low-GWP refrigerant; Natural refrigerant; Global Warming Potential GWP ; Tank-to-grave; Interviews.; Köldmedier; Blandning; Globalt uppvärmningspotential GWP ; Låg-GWP köldmedier; Naturligt köldmedier; installation till destruktion; Intervjuer.;

    Abstract : Refrigeration plays a vital role today in various residential, commercial, and industrial processes, requiring refrigerants to facilitate the cooling or heating processes. Over time, refrigerants have undergone significant changes to meet technological, social, environmental, and economic needs. READ MORE

  5. 4. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Douglas Björkengren; [2023]
    Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE

  6. 5. Laser Scattering for Fast Characterization of Cellulose Filaments

    University essay from KTH/Fiber- och polymerteknologi

    Author : Alexandra Konstantinidou; Saga Holmström; Susanna Hellberg; [2022]
    Keywords : Cellulose nanofibrils; Fibers; Sustainable development; Bio-based material; Characterization; Microscale; Microscopy; Small-angle light scattering; Laser diffraction; Cellulosananofibriller; Fiber; H˚allbar utveckling; Biobaserade material; Karakterisering; Mikroskala; Mikroskopi; Ljusspridning; Laserdiffraktion;

    Abstract : Cellulosananofibriller (CNFs) hör till naturens mest fundamentala byggstenar och förser naturliga material, såsom den yttre cellväggen i trä, med en otrolig styrka och styvhet. Genom att imitera träets arkitektur öppnas möjligheter upp för tillverkning av nya, biobaserade och lättviktiga strukturella material med mekaniska egenskaper som överskrider de för glasfiber, metaller och legeringar. READ MORE