Table 2 Highly abundant topics
From: Reflecting trends in the academic landscape of sustainable energy using probabilistic topic modeling
Topic no. | Abundance rank | Superordinate theme | Topic interpretation | Top 20 topic terms ordered by decreasing probability for each topic |
|---|---|---|---|---|
57* | 1 | Electrical energy storage | Materials for electrochemical energy storage via batteries or supercapacitors | See Table 1 |
100 | 2 | Urbanization | Cities, districts, and urban planning | city, urban, urban_area, urban_development, urban_planning, urbanization, urban_metabolism, urban_form, urban_sustainability, neighbourhood, district, sustainable_urban, density, urban_environment, urban_design, sustainable_urban_development, residential, scale, urban_ecosystem, spatial |
276 | 3 | Life cycle assessment | Environmental life cycle assessment with focus on carbon footprints | lca, environmental_impact, impact, life_cycle_assessment_lca, life_cycle, impact_category, life_cycle_assessment, emission, environmental_performance, stage, global_warming_potential, gwp, functional_unit, assess, environmental_burden, category, environmental, impact_assessment, perform, phase |
242* | 4 | Chemical catalysis | Chemical catalysis for various types of reactions | See Table 1 |
90* | 5 | Modeling and optimization | Optimization models and algorithms for power systems operation and markets | See Table 1 |
30 | 6 | Heating and cooling | Low temperature heating, cooling and efficiency technologies | heat, cool, heating, heat_pump, temperature, cooling, thermal, fluid, performance, heat_exchanger, heating_system, waste_heat, heat_recovery, absorption, air, heat_transfer, operate, low_temperature, cycle, condenser |
125* | 7 | Sustainable building materials | Alternative blending or replacement materials for cement | See Table 1 |