Results 41 to 50 of about 187,061 (298)

A Comprehensive Overview of the Clinical, Electrophysiological, and Neuroimaging Features of BPAN: Insights From a New Case Series

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Neurodegeneration with brain iron accumulation (NBIA) comprises a genetically and clinically heterogeneous group of rare neurological disorders characterized particularly by iron accumulation in the basal ganglia. To date, 15 genes have been associated with NBIA.
Seda Susgun   +95 more
wiley   +1 more source

Optimal Design of Inlet Passage for Waterjet Propulsion System Based on Flow and Geometric Parameters

open access: yesAdvances in Materials Science and Engineering, 2019
As an important overcurrent component in a waterjet propulsion system, the inlet passage is used to connect the propulsion pump and the bottom of the propulsion ship.
Weixuan Jiao   +5 more
doaj   +1 more source

VESSEL MAIN PROPULSION ENGINE PERFORMANCE EVALUATION [PDF]

open access: yesJournal of KONES. Powertrain and Transport, 2015
In general, the performance of a ship in service is different from that obtained on shipyard sea trial. Apart from any differences due to loading conditions, and for which due correction should be made, these differences arise principally from the weather, fouling and surface deterioration of the hull and propeller.
Tadeusz Borkowski   +2 more
openaire   +1 more source

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

open access: yesArthritis Care &Research, Accepted Article.
Objectives Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies. To help patients and providers in the decision‐making process, we developed
Anahita Deboo   +19 more
wiley   +1 more source

Architecture of Ti–6Al–4V thin-walled microthrusters fabricated via laser powder bed fusion

open access: yesVirtual and Physical Prototyping
Advances in small-satellite platforms have intensified the demand for microthrusters that offer structural robustness under stringent mass constraints.
Jeongrak Lee   +10 more
doaj   +1 more source

Evaluation of Series and Parallel Hybrid Propulsion Systems for UAVs Implementing Distributed Propulsion Architectures

open access: yesAerospace, 2022
Current environmental policies for the aviation sector motivate the use of cleaner propulsion alternatives in order to reduce their CO2 footprint and noise pollution in the coming years.
Darwin Jimenez   +4 more
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Numerical study on hydrodynamic behavior of flexible multi-stage propulsion foil

open access: yesAIP Advances, 2021
To examine mechanisms of the high speed and efficiency of propulsion of aquatic animals and to apply the findings to the design of underwater vehicles, this study uses dolphins as an example. The motion of aquatic animals is divided into three stages for
Dakui Feng   +4 more
doaj   +1 more source

On the performance of electrohydrodynamic propulsion [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
Partially ionized fluids can gain net momentum under an electric field, as charged particles undergo momentum-transfer collisions with neutral molecules in a phenomenon termed an ionic wind. Electrohydrodynamic (EHD) thrusters generate thrust by using two or more electrodes to ionize the ambient fluid and create an electric field.
Kento Masuyama, Steven R. H. Barrett
openaire   +1 more source

The applicability of MFD thrusters to satellite power systems [PDF]

open access: yes, 1980
The high power self field MPD thruster uses electromagnetic forces rather than electrostatic to accelerate a neutral plasma. The most attractive application of MPD thrusters to satellite power systems is in the area of electric propulsion for a cargo ...
Jones, R. M., Rudolph, L. K.
core   +1 more source

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