Results 21 to 30 of about 13,607,425 (411)

The near-room-temperature upsurge of electrical resistivity in Lu-H-N is not superconductivity, but a metal-to-poor-conductor transition

open access: yesMatter and Radiation at Extremes, 2023
The recent report of superconductivity in nitrogen-doped lutetium hydride (Lu-H-N) at 294 K and 1 GPa brought hope for long-sought-after ambient-condition superconductors.
Di Peng   +5 more
doaj   +1 more source

Stamina of a non-gasketed flange joint under combined internal pressure and axial loading [PDF]

open access: yes, 2008
The performance of a bolted flange joint is characterized mainly by its 'strength' and 'sealing capability'. A number of numerical and experimental studies have been conducted to study these characteristics under internal pressure loading conditions ...
ASME boiler and pressure vessel code   +5 more
core   +1 more source

Clinical Practice Guideline for Screening and Management of High Blood Pressure in Children and Adolescents

open access: yesPediatrics, 2017
These pediatric hypertension guidelines are an update to the 2004 “Fourth Report on the Diagnosis, Evaluation, and Treatment of High Blood Pressure in Children and Adolescents.” Significant changes in these guidelines include (1) the replacement of the ...
J. Flynn   +18 more
semanticscholar   +1 more source

Statistics of pressure and of pressure-velocity correlations in isotropic turbulence [PDF]

open access: yesPhys. of Fluids, Vol. 12, (2000) 1836-1842, 2000
Some pressure and pressure-velocity correlation in a direct numerical simulations of a three-dimensional turbulent flow at moderate Reynolds numbers have been analyzed. We have identified a set of pressure-velocity correlations which posseses a good scaling behaviour.
arxiv   +1 more source

Under pressure [PDF]

open access: yesEuropean Journal of Pediatrics, 2012
Physical urticaria is a rare but challenging subset of chronic urticaria. Wheals of pressure urticaria are typically delayed in appearance. A pressure test can easily be done to confirm the diagnosis.
De Cunto A   +3 more
openaire   +4 more sources

Randomised, controlled trial of alternating pressure mattresses compared with alternating pressure overlays for the prevention of pressure ulcers : PRESSURE (pressure relieving support surfaces) trial [PDF]

open access: yes, 2006
Objective To compare whether differences exist between alternating pressure overlays and alternating pressure mattresses in the development of new pressure ulcers, healing of existing pressure ulcers, and patient acceptability.
Cranny, G   +8 more
core   +2 more sources

Adaptation of the Bridgman anvil cell to liquid pressure mediums [PDF]

open access: yesRev. Sci. Instrum. 78, 123901 (2007), 2008
The advantage of Bridgman anvil pressure cells is their wide pressure range and the large number of wires which can be introduced into the pressure chamber. In these pressure cells soft solid pressure mediums like steatite are used. We have succeeded in adapting the Bridgman cell to liquid pressure mediums.
arxiv   +1 more source

Finite Element Analysis to model ischemia experienced in the development of device related pressure ulcers. [PDF]

open access: yes, 2019
Pressure ulcers are a common occurrence of damage to skin. Severity ranges from slightly discoloured skin to full thickness tissue damage which can be fatal in some cases.
Dictionary of Nursing   +12 more
core   +2 more sources

A clinical trial of the effects of dietary patterns on blood pressure. DASH Collaborative Research Group.

open access: yesNew England Journal of Medicine, 1997
BACKGROUND It is known that obesity, sodium intake, and alcohol consumption factors influence blood pressure. In this clinical trial, Dietary Approaches to Stop Hypertension, we assessed the effects of dietary patterns on blood pressure.
L. Appel   +19 more
semanticscholar   +1 more source

Enhancing reversibility of LiNi0.5Mn1.5O4 by regulating surface oxygen deficiency

open access: yesCarbon Energy, 2023
Oxygen deficiency has crucial effects on the crystal structure and electrochemical performance of spinel oxide lithium electrode materials such as LiNi0.5Mn1.5O4 (LNMO) cathode.
Dandan Wang   +8 more
doaj   +1 more source

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