Results 111 to 120 of about 247,915 (271)

Enhancing space transportation: The NASA program to develop electric propulsion [PDF]

open access: yes
The NASA Office of Aeronautics, Exploration, and Technology (OAET) supports a research and technology (R and T) program in electric propulsion to provide the basis for increased performance and life of electric thruster systems which can have a major ...
Barnett, John W.   +3 more
core   +1 more source

Cost Analysis Insights for Offshore CCS Hubs: A Case Study of the Santos Basin, Brazil

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT The reuse of decommissioned offshore platforms for geological carbon storage offers a cost‐effective and technically feasible strategy to reduce greenhouse gas emissions in emerging economies. This study presents a comprehensive techno‐economic assessment of offshore carbon capture and storage (CCS) hubs in Brazil, with a focus on the Merluza ...
Norah A. Ordoñez   +4 more
wiley   +1 more source

Dimensionless scaling of heat-release-induced planar shock waves in near-critical CO2

open access: yes, 2017
We performed highly resolved one-dimensional fully compressible Navier-Stokes simulations of heat-release-induced compression waves in near-critical CO2. The computational setup, inspired by the experimental setup of Miura et al., Phys. Rev.
Ismail A. F.   +4 more
core   +1 more source

Projected Annual and Monsoonal Precipitation Trends of CMIP6 Over Peninsular Malaysia

open access: yesInternational Journal of Climatology, EarlyView.
In this study, we examined historical and projected precipitation temporal trends across Peninsular Malaysia using ground‐based records and CMIP6 models from NEX‐GDDP. Analysing data from 518 reliable gauges over 1973–2022, it identified spatial and monsoonal variations.
Nurul Afiqah Mohamad Arbai   +1 more
wiley   +1 more source

Summary of the seventeenth international winds workshop

open access: yesJournal of the European Meteorological Society
The Seventeenth International Winds Workshop (IWW17) took place virtually from May 19 to 22, 2025. This event was a collaborative effort, co-organized by the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space ...
Iliana Genkova, Jaime Daniels
doaj   +1 more source

How Well Is Surface Diurnal Temperature Range Represented by Observations at 2‐m Level

open access: yesInternational Journal of Climatology, EarlyView.
We demonstrate that geostationary satellites depict well the Diurnal Temperature Range (DTR) in the US but differ from information at 2 m level from model outputs. Upper: mean diurnal temperature range (DTR) using GOES‐E based land surface temperature (LST) for January (left) and July (right) during 2004–2009. Lower: mean diurnal temperature range (DTR)
Rachel T. Pinker   +4 more
wiley   +1 more source

Evaluation of off-road terrain with static stereo and monoscopic displays [PDF]

open access: yes
The National Aeronautics and Space Administration is currently funding research into the design of a Mars rover vehicle. This unmanned rover will be used to explore a number of scientific and geologic sites on the Martian surface. Since the rover can not
Hartley, Craig S., Yorchak, John P.
core   +1 more source

Complex numerical modeling of dynamics and crashes of wing-in-ground vehicles [PDF]

open access: yes, 1993
The Wing-In-Ground craft (WIG), a vehicle flying in the ground effect, is a promising transportation means of the near future. This paper describes mathematical modeling of WIG motion in all regimes, such as planing, take-off, transition to flight ...
Kornev, Nikolai, Matveev, Konstantin
core  

What Do Latest CMIP6 Global Climate Models Say About Future Arctic Sea Ice Coverage Changes?

open access: yesInternational Journal of Climatology, EarlyView.
Modelling of sea ice dynamics has significantly improved between CMIP5 and CMIP6, with nearly three times as many models capturing realistic annual variability in sea ice extent (SIE). What we previously thought was a non‐linear pattern of low SIE observations in 2007–2010 that would continue throughout time now appears to be non‐record‐setting lows in
Jessica L. Matthews   +4 more
wiley   +1 more source

INDOOR RADAR CROSS SECTION MEASUREMENTS OF SIMPLE TARGETS DOI 10.5028/jatm.2012.04014711

open access: yesJournal of Aerospace Technology and Management, 2012
This paper has described the radar absorbing materials characterization and radar cross section measurements, in the frequency range of 8 to 12 GHz, using a very simple setup.
Marcelo Alexandre Souza Miacci   +4 more
doaj  

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