Results 31 to 40 of about 8,725,833 (358)
GeoHealth, 2021 The combination of air quality (AQ) data from satellites and low‐cost sensor systems, along with output from AQ models, have the potential to augment high‐quality, regulatory‐grade data in countries with in situ monitoring networks and provide much ...
Bryan N. Duncan +8 more
doaj +1 more source
Aeronautical Ad Hoc Networking for the Internet-Above-The-Clouds [PDF]
Proceedings of the IEEE ( Volume: 107 , Issue: 5 , May 2019 ), 2019 The engineering vision of relying on the ``smart sky" for supporting air traffic and the ``Internet above the clouds" for in-flight entertainment has become imperative for the future aircraft industry. Aeronautical ad hoc Networking (AANET) constitutes a compelling concept for providing broadband communications above clouds by extending the coverage of
arxiv +1 more source
Airborne Transducer Integrity under Operational Environment for Structural Health Monitoring
Sensors, 2016 This paper investigates the robustness of permanently mounted transducers used in airborne structural health monitoring systems, when exposed to the operational environment.
Mohammad Saleh Salmanpour +2 more
doaj +1 more source
Correlations in hot and dense quark matter [PDF]
Few Body Syst. 31 (2002) 159-164, 2001 We present a relativistic three-body equation to investigate three-quark clusters in hot and dense quark matter. To derive such an equation we use the Dyson equation approach. The equation systematically includes the Pauli blocking factors as well as the self energy corrections of quarks.
arxiv +1 more source
Resonances and Lander Modes Observed by InSight on Mars (1–9 Hz)
Bulletin of The Seismological Society of America (BSSA), 2021 The National Aeronautics and Space Administration’s (NASAs) Interior exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) lander successfully touched down on Mars in November 2018, and, for the first time, a seismometer was ...
N. Dahmen +20 more
semanticscholar +1 more source
Three-quark clusters at finite temperatures and densities [PDF]
Phys.Lett. B521 (2001) 33-41, 2001 We present a relativistic three-body equation to study correlations in a medium of finite temperatures and densities. This equation is derived within a systematic Dyson equation approach and includes the dominant medium effects due to Pauli blocking and self energy corrections. Relativity is implemented utilizing the light front form.
arxiv +1 more source
Evaluating the Rationale for Folding Wing Tips Comparing the Exergy and Breguet Approaches [PDF]
, 2017 The design and development processes for future aircraft aims to address the environmental and efficiency challenges needed to facilitate the engineering of concepts that are far more integrated and require a multidisciplinary approach.
Hayes, D. +2 more
core +1 more source
Sizing Power Components of an Electrically Driven Tail Cone Thruster and a Range Extender
, 2016 The aeronautics industry has been challenged on many fronts to increase efficiency, reduce emissions, and decrease dependency on carbon-based fuels. The NASA Aeronautics Research Mission Directorate has identified a suite of investments to meet long term
R. Jansen, C. Bowman, A. Jankovsky
semanticscholar +1 more source
Evaluation of the Earth Systems Research Laboratory's global Observing System Simulation Experiment system [PDF]
Tellus: Series A, Dynamic Meteorology and Oceanography, 2013 An Observing System Simulation Experiment (OSSE) system has been implemented at the National Oceanographic and Atmospheric Administration Earth Systems Research Laboratory in the US as part of an international Joint OSSE effort.
Nikki C. Privé +5 more
doaj +1 more source
On the stability of three-body bound states on the light front [PDF]
Few Body Syst. 33 (2003) 89-97, 2003 We investigate the stability of the relativistic three-boson system with a zero range force in the light front form. In particular we study the dependence of the system on an invariant cut-off. We discuss the conditions for the relativistic Thomas collapse. Finally, we fix the parameters of the model introducing a scale.
arxiv +1 more source