Results 41 to 50 of about 11,105 (201)

Mobile robot visual homing by vector pre-assigned mechanism [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
In this paper, we present an optimization mechanism for two popular landmark-based mobile robot visual homing algorithms (ALV and HiSS), called vector pre-assigned mechanism (VPM).
X. Ji, Q. Zhu, J. Wang, C. Cai, J. Ma
doaj   +1 more source

Sensor Systems for Vehicle Environment Perception in a Highway Intelligent Space System

open access: yesSensors, 2014
A Highway Intelligent Space System (HISS) is proposed to study vehicle environment perception in this paper. The nature of HISS is that a space sensors system using laser, ultrasonic or radar sensors are installed in a highway environment and ...
Xiaofeng Tang   +6 more
doaj   +1 more source

Large Amplitude Whistler Waves in Earth's Plasmasphere and Plasmaspheric Plumes

open access: yesGeophysical Research Letters
Whistler mode waves in the plasmasphere and plumes drive significant losses of energetic electrons from the Earth's radiation belts into the upper atmosphere.
Xiao‐Chen Shen   +7 more
doaj   +1 more source

Coexistence of Lightning Generated Whistlers, Hiss and Lower Hybrid Noise Observed by e-POP (SWARM-E)–RRI

open access: yesAtmosphere, 2020
Whistler mode waves play a major role in regulating the lifetime of trapped electrons in the Earth’s radiation belts. Specifically, interaction with whistler mode hiss waves is one of the mechanisms that maintains the slot region between the inner ...
Ashanthi Maxworth   +2 more
doaj   +1 more source

Dependence of Plasmaspheric Hiss Power on ωpe/Ωce

open access: yesGeophysical Research Letters
Plasmaspheric hiss waves play a key role in scattering energetic electrons and are often modeled in the inner magnetosphere using empirical hiss power maps parameterized by L shell.
Mingyue Lu   +5 more
doaj   +1 more source

Designing a reference architecture for health information systems

open access: yesBMC Medical Informatics and Decision Making, 2021
Background Healthcare relies on health information systems (HISs) to support the care and receive reimbursement for the care provided. Healthcare providers experience many problems with their HISs due to improper architecture design.
Joep Tummers   +3 more
doaj   +1 more source

Van Allen Probes Observations of Chorus Wave Vector Orientations: Implications for the Chorus‐to‐Hiss Mechanism

open access: yesGeophysical Research Letters, 2019
Using observations from the Van Allen Probes EMFISIS instrument, coupled with ray tracing simulations, we determine the fraction of chorus wave power with the conditions required to access the plasmasphere and evolve into plasmaspheric hiss.
D. Hartley   +4 more
semanticscholar   +1 more source

Global Effects of Chorus and Hiss Waves on Trapped Energetic Electrons at Jupiter

open access: yesGeophysical Research Letters
Unlike Earth, where whistler‐mode chorus is generally observed outside the plasmasphere and hiss is predominantly confined within it, Jupiter's magnetosphere frequently hosts both wave modes simultaneously.
W. Li   +4 more
doaj   +1 more source

How whistler mode hiss waves and the plasmasphere drive the quiet decay of radiation belts electrons following a geomagnetic storm

open access: yesJournal of Physics, Conference Series, 2020
We show how an extended period of quiet solar wind conditions contributes to a quiet state of the plasmasphere that expands up to L ∼ 5.5, which creates the perfect conditions for wave-particle interactions between the radiation belt electrons and ...
J. Ripoll   +20 more
semanticscholar   +1 more source

Hisstology: High Spectral Spatial Resolution Magnetic Resonance Imaging Detection of Vasculature Validated by Histology and Micro–Computed Tomography

open access: yesMolecular Imaging, 2011
High spectral and spatial resolution (HiSS) data, acquired with echo-planar spectroscopic imaging (EPSI), can be used to acquire water spectra from each small image voxel.
Chad R. Haney   +8 more
doaj   +1 more source

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