Results 41 to 50 of about 29,225,544 (230)

DocAsRef: An Empirical Study on Repurposing Reference-Based Summary Quality Metrics Reference-Freely [PDF]

open access: yesarXiv, 2022
Automated summary quality assessment falls into two categories: reference-based and reference-free. Reference-based metrics, historically deemed more accurate due to the additional information provided by human-written references, are limited by their reliance on human input.
arxiv  

Study of the Impact of Traffic Flows on the ATC Actions

open access: yesAerospace, 2022
It has always been a topic of great interest in air transport management to be able to estimate controller workload. So far, research has not had the opportunity to make use of real data on the controller’s actions.
Guillermo Gutiérrez Teuler   +4 more
doaj   +1 more source

C2PS: A Digital Twin Architecture Reference Model for the Cloud-Based Cyber-Physical Systems

open access: yesIEEE Access, 2017
Cyber-physical system (CPS) is a new trend in the Internet-of-Things related research works, where physical systems act as the sensors to collect real-world information and communicate them to the computation modules (i.e.
K. M. Alam, Abdulmotaleb El Saddik
semanticscholar   +1 more source

$\mathcal{L}_1$ Adaptive Control for Switching Reference Systems: Application to Flight Control [PDF]

open access: yes, 2021
This paper presents a framework for the design and analysis of an $\mathcal{L}_1$ adaptive controller with a switching reference system. The use of a switching reference system allows the desired behavior to be scheduled across the operating envelope, which is often required in aerospace applications.
arxiv   +1 more source

A Federated Reference Structure for Open Informational Ecosystems

open access: yesJournal of Interactive Media in Education, 2016
The paper describes the concept of a federated ecosystem for Open Educational Resources (OER) in the German education system. Here, a variety of OER repositories (ROER) (Muuß-Merholz & Schaumburg, 2014) and reference platforms have been established in ...
Richard Heinen   +4 more
doaj   +1 more source

Spectral Analysis of the Martian Atmospheric Turbulence: InSight Observations

open access: yesGeophysical Research Letters, 2022
In this study, we perform spectral analysis of Martian near‐surface turbulence using the in‐situ observations by NASA's InSight lander on Mars.
Orkun Temel   +5 more
doaj   +1 more source

Multisite Performance Evaluation of the cobas 5800 System and Comparison to the cobas 6800/8800 Systems for Quantitative Measurement of HBV, HCV, and HIV-1 Viral Load

open access: yesMicrobiology Spectrum, 2022
The cobas 5800 System (“cobas 5800”) is a new low- to mid-throughput PCR-based nucleic acid testing system which performs both qualitative and quantitative testing, including viral load (VL) determination.
Jakob Tschäpe   +7 more
doaj   +1 more source

Quantum mechanics and the covariance of physical laws in quantum reference frames [PDF]

open access: yesNat. Commun. 10, 494 (2019), 2017
In physics, every observation is made with respect to a frame of reference. Although reference frames are usually not considered as degrees of freedom, in all practical situations it is a physical system which constitutes a reference frame. Can a quantum system be considered as a reference frame and, if so, which description would it give of the world?
arxiv   +1 more source

Complex systems in the history of American English [PDF]

open access: yes, 2014
Kretzschmar 2009 has demonstrated that language in use, speech as opposed to linguistic systems as usually described by linguists, satisfies the conditions for complex systems as defined in sciences such as physics, evolutionary biology, and economics ...
Kretzschmar, Jr., William A.
core   +1 more source

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