Results 31 to 40 of about 1,254,050 (194)

Formation Flight of Fixed-Wing UAVs: Dynamic Modeling, Guidance Design, and Testing in Realistic Scenarios

open access: yesAerospace
Autonomous unmanned flight based on fixed-wing aircraft constitutes a practical and economical solution for transport missions to remote destinations or disadvantaged communities, for which their payload and range represent interesting figures of merit ...
Carlo E.D. Riboldi, Marco Tomasoni
doaj   +1 more source

Sleep EEG Derived From Behind-the-Ear Electrodes (cEEGrid) Compared to Standard Polysomnography: A Proof of Concept Study

open access: yesFrontiers in Human Neuroscience, 2018
Electroencephalography (EEG) recordings represent a vital component of the assessment of sleep physiology, but the methodology presently used is costly, intrusive to participants, and laborious in application.
Annette Sterr   +13 more
doaj   +1 more source

Analysis of Flow Structures and Global Parameters across a Heated Square Cylinder in Forced and Mixed Convection

open access: yesAtmosphere, 2022
In the present study, numerical simulations are performed to identify the role of Reynolds number (Re), Richardson number (Ri) and free-stream orientations (α) on flow structures, aerodynamic parameters and heat transfer characteristics for the ...
Rashid Ali, Nadeem Hasan
doaj   +1 more source

Orexin and MCH neurons: regulators of sleep and metabolism

open access: yesFrontiers in Neuroscience, 2023
Sleep-wake and fasting-feeding are tightly coupled behavioral states that require coordination between several brain regions. The mammalian lateral hypothalamus (LH) is a functionally and anatomically complex brain region harboring heterogeneous cell ...
Hanan Bouâouda, Pawan Kumar Jha
doaj   +1 more source

Receiver Design for Realizing On-Demand WiFi Wake-up using WLAN Signals

open access: yes, 2012
In this paper, we design a simple, low-cost, and low-power wake-up receiver which can be used for an IEEE 802.11-compliant device to remotely wake up the other devices by utilizing its own wireless LAN (WLAN) signals.
Ito, Tetsuya   +5 more
core   +1 more source

Anthropogenic signals recorded in an ice core from Eclipse Icefield, Yukon Territory, Canada [PDF]

open access: yes, 2001
Trends in the annual flux of sulfate and nitrate in a new ice core collected at an elevation of 3017 m on Eclipse Icefield, 45 km northeast of Mt. Logan were examined to determine the effect of anthropogenic activity on precipitation chemistry in the ...
Wake, Cameron P, Yalcin, Kaplan
core   +3 more sources

Research on Unsteady Wake Characteristics of the NREL 5MW Wind Turbine Under Yaw Conditions Based on a LBM-LES Method

open access: yesFrontiers in Energy Research, 2022
The yaw of a large-scale wind turbine will change the aerodynamic performance of its substructures. In view of this, this article applied a LBM-LES method to numerically simulate the yawed MEXICO wind turbine and compared the numerical results with the ...
Feifei Xue   +6 more
doaj   +1 more source

Climate in the balance [PDF]

open access: yes, 2006
This essay explores how our climate system works, how humans are changing the climate system, and how we might face the challenges of reducing our negative impact on the climate system in the ...
Wake, Cameron P.
core   +1 more source

Ordinary pseudorepresentations and modular forms

open access: yes, 2017
In this short note, we observe that the techniques of our recent work "Pseudo-modularity and Iwasawa theory" can be used to provide a new proof of some of the residually reducible modularity lifting results of Skinner and Wiles.
Wake, Preston, Wang-Erickson, Carl
core   +1 more source

MODELLING OF TURBULENT WAKE FOR TWO WIND TURBINES

open access: yesНаучный вестник МГТУ ГА, 2018
The construction of several large wind farms (The Ulyanovsk region, the Republic of Adygea, the Kaliningrad region, the North of the Russian Federation) is planned on the territory of the Russian Federation in 2018–2020.
A. S. Kryuchkova, S. V. Strijhak
doaj   +1 more source

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