Results 61 to 70 of about 54,360 (305)

Recurrent Hypothermia and Autonomic Dysfunction Secondary to Shapiro Syndrome

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 44‐year‐old man presented with recurrent hypothermia, diaphoresis and hypertension. Extensive investigation for infectious, inflammatory, metabolic and endocrine aetiologies was negative. MR scan of the brain demonstrated no lesions but revealed callosal dysgenesis, consistent with Shapiro syndrome.
Naveen Kumar   +3 more
wiley   +1 more source

Characterization of Pressure Pulsation Propagation in a Pump‐Turbine Based on the Same‐Frequency Tracking Method

open access: yesEnergy Science & Engineering
Pressure pulsation is a key factor affecting the safe and stable operation of pump‐turbines. This article is based on same frequency‐tracking method on the pressure pulsation propagation characteristics of pump‐turbine during generation mode.
Yanpin Li   +9 more
doaj   +1 more source

The Temporal-Spatial Features of Pressure Pulsation in the Diffusers of a Large-Scale Vaned-Voluted Centrifugal Pump

open access: yesMachines, 2021
A large-scale, vaned-voluted centrifugal pump can be applied as the key component in water-transfer projects. Pressure pulsation will be an important factor in affecting the operation stability.
Zhaoheng Lu   +5 more
doaj   +1 more source

Numerical simulations of line-profile variation beyond a single-surface approximation for oscillations in roAp stars [PDF]

open access: yes, 2011
Prior to the last decade, most observations of roAp stars have concerned the light variations. Recently some new, striking results of spectroscopic observations with high time resolution, high spectral dispersion, and a high signal-to-noise ratio became ...
Naito, Jun   +2 more
core   +1 more source

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

open access: yesArthritis Care &Research, EarlyView.
Objective 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.
Anahita Deboo   +88 more
wiley   +1 more source

Particle simulation of vibrated gas-fluidized beds of cohesive fine powders

open access: yes, 2006
We use three-dimensional particle dynamics simulations, coupled with volume-averaged gas phase hydrodynamics, to study vertically vibrated gas-fluidized beds of fine, cohesive powders.
Kevrekidis, I. G.   +2 more
core   +1 more source

Reduction of Pressure Pulsations over a Wide Frequency Range in Hydrostatic Systems

open access: yesMachines
This article points out some of the forces acting on the components of a hydraulic system. These forces can lead to changes in the spectrum of pressure pulsations under certain conditions.
Michał Stosiak   +3 more
doaj   +1 more source

Analysis of Pressure Pulsation Induced by Rotor-Stator Interaction in Nuclear Reactor Coolant Pump

open access: yesShock and Vibration, 2017
The internal flow of reactor coolant pump (RCP) is much more complex than the flow of a general mixed-flow pump due to high temperature, high pressure, and large flow rate.
Xu Zhang   +4 more
doaj   +1 more source

Numerical Simulation of Pressure Pulsations in Francis Turbines

open access: yesIOP Conference Series: Earth and Environmental Science, 2012
For more than 150 years, hydraulic power plants have been strongly contributing to energy generation. At present, with the expanding participation of other non-storable renewable energy sources in the electrical market composition, water turbines can importantly contribute to the electrical grid stability and to energy storage.
M V Magnoli, R Schilling
openaire   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer   +3 more
wiley   +1 more source

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