Results 91 to 100 of about 29,519,224 (294)

Short Takeoff and Vertical Landing Aircraft Deceleration Transition Control Based on Adaptive Control

open access: yesGuidance, Navigation and Control
Addressing the issues of nonlinearity, control redundancy and coupling, and system uncertainties in the deceleration transition process from level flight to hover in short takeoff and vertical landing (STOVL) aircraft, this paper establishes a six-degree-
Yifan Li   +4 more
doaj   +1 more source

Neurologic Manifestations of Long COVID Affect Adult Females More Severely Than Males

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterize differences in neurologic manifestations of postacute sequelae of SARS‐CoV‐2 infection (Neuro‐PASC) between females and males. Methods Cross‐sectional study of the first consecutive 261 posthospitalization Neuro‐PASC (PNP) and 2068 nonhospitalized Neuro‐PASC (NNP) patients evaluated at the Neuro‐COVID clinic between ...
Hannah Kopinsky   +5 more
wiley   +1 more source

Revenue Sharing, Demand Uncertainty, and Vertical Control of Competing Firms [PDF]

open access: yes
This paper argues that revenue sharing is a valuable instrument in vertically separated industries when there is intrabrand competition among the downstream firms, demand is stochastic or variable, and downstream inventory is chosen before demand is ...
Kathryn Spier, James D. Dana
core  

Modeling and Control Simulation of Vertical Motion PMLSM

open access: yesGong-kuang zidonghua, 2010
A mathematical model of PMLSM was established on the basis of foundational motor theory, the method of establishing rotating motor's mathematical model and PMLSM′s characteristics.
ZHANG Zong-sheng, CUI Jian-ming
doaj  

Moonlight drives ocean-scale mass vertical migration of zooplankton during the Arctic winter [PDF]

open access: yes, 2016
The creation of the pan-Arctic archive of ADCP data was supported by the UK Natural Environment Research Council (NERC) (Panarchive: NE/H012524/1 and SOFI: NE/F012381/1) as was mooring work in Svalbard (Oceans 2025 and Northern Sea Program).
Berge, Jorgen   +9 more
core   +1 more source

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay   +15 more
wiley   +1 more source

Acceleration-difference-feedback-based decoupling with PID control strategy for active suppression of vehicle

open access: yesAdvances in Mechanical Engineering
This study addresses the issue of vertical-pitch dynamic coupling in active suspension systems caused by traditional velocity-feedback control. We introduce a novel ADF-PID control strategy that combines acceleration difference feedback (ADF) decoupling ...
Xiao-Peng Wang, Long Wu, Chi-Hsin Yang
doaj   +1 more source

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram   +3 more
wiley   +1 more source

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