Results 61 to 70 of about 7,205 (307)
Drones for parcel and passenger transportation: A literature review [PDF]
, 2020 Delivery drones and ‘air taxis’ are currently among the most intensely discussed emerging technologies, likely to expand mobility into the ‘third dimension’ of low-level airspace.
Biehle, Tobias +2 more
core +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This research analyses the carbon footprint of the NGO Madre Coraje, using an integrated methodology that combines the calculator provided by REAS (Red de Economía Alternativa y Solidaria) Navarra and the Life Cycle Assessment (LCA). It quantifies emissions across the three scopes of the Greenhouse Gas Protocol, evaluating both direct and ...
José Fernandez‐Serrano +2 more
wiley +1 more source
Computational Study of NASA's Quadrotor Urban Air Taxi Concept [PDF]
High-fidelity computational fluid dynamics simulations have been carried out in order to analyze NASA's quadrotor urban air taxi concept for urban air mobility, also know as on-demand mobility applications. High-order accurate schemes, dual-time stepping,
Ventura Diaz, Patricia, Yoon, Seokkwan
core +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT The extant carbon neutrality (CN) literature largely offers macro‐ or meso‐level analyses, providing limited insights into implementation experiences that could inform granular policymaking and industry strategies. To address this gap, we examine the lived CN experiences of firms in the transportation, energy, manufacturing, and construction ...
Adeel Luqman +4 more
wiley +1 more source
Governing Within the Constraints of Carbon Budgets: Regional Insights From Sweden
Environmental Policy and Governance, EarlyView.ABSTRACT Staying within the limits of a rapidly shrinking global carbon budget while avoiding dependency on negative emissions technologies and carbon dioxide removal remains a significant challenge in a multi‐level governance system, where resources and responsibilities are dispersed among different actors.
Paula Lenninger, Magdalena Kuchler
wiley +1 more source
Environmental Policy and Governance, EarlyView.ABSTRACT Increasing electricity demand from data centres, industrial applications, electric vehicles and domestic heating is creating pressure to develop electricity systems in many parts of the world, but especially in Western countries. In response to challenges such as grid congestion, interconnection queues and climate‐related hazards, network ...
Jussi Valta +3 more
wiley +1 more source
AerospaceTo reduce the environmental impact of airborne transportation, the aeronautic community investigates smaller aircraft with short-range operations (such as training aircraft, air taxis, or commuter aircraft) as technology incubators.
Susan Liscouët-Hanke +2 more
doaj +1 more source
A Quiet Helicopter for Air Taxi Operations [PDF]
NASA is exploring rotorcraft designs for VTOL air taxi operations, also known as urban air mobility (UAM) or on-demand mobility (ODM) applications. Several concept vehicles have been developed, intended to focus and guide NASA research activities in ...
Johnson, Wayne
core +1 more source
Energy Science &Engineering, EarlyView.Integration of a steam cycle with an existing gas turbine increased efficiency from 32% to 51%, reducing fuel consumption by 21.4% and CO2 emissions by 18.6%. The modification generated USD 13.9 million annual savings and lowered the Levelized Cost of Energy to 38.7 USD/MWh, with a 3‐year payback.
Vahid Pirouzfar +2 more
wiley +1 more source
Computational Study of the Side-By-Side Urban Air Taxi Concept [PDF]
High-fidelity computational fluid dynamics simulations of NASAs Side-by-side air taxi concept have been carried out. The three-dimensional unsteady Navier-Stokes equations are solved on overset grids using high-order accurate schemes, dual-time stepping,
Ahmad, Jasim +3 more
core +1 more source