Results 11 to 20 of about 3,701,025 (306)

Cluster Analysis of Center-of-Pressure Measures [PDF]

open access: yesInternational Journal of Electrical and Computer Engineering, 2012
− Postural stability analysis is useful in a variety of applications, such as assessing the risk of falls for older adults or investigating neuromuscular disorders. Variations in the center-of-pressure (COP) are often used to assess postural stability. The COP is a point where the vertical reaction forces of the ground act.
Shabana Baig   +4 more
openaire   +1 more source

Melting of Iron Explored by Electrical Resistance Jump up to 135 GPa

open access: yesGeophysical Research Letters, 2021
The melting temperature (Tm) of iron at megabar pressures constrains the Earth's core temperature structure and dynamics. Previous experimental studies demonstrated large discrepancies in Tm at high pressures.
Mingqiang Hou   +8 more
doaj   +1 more source

Effects of Ram-Pressure from Intracluster Medium on the Star Formation Rate of Disk Galaxies in Clusters of Galaxies [PDF]

open access: yes, 1998
Using a simple model of molecular cloud evolution, we have quantitatively estimated the change of star formation rate (SFR) of a disk galaxy falling radially into the potential well of a cluster of galaxies.
Kodama T.   +4 more
core   +3 more sources

Pressure Engineering Promising Transparent Oxides with Large Conductivity Enhancement and Strong Thermal Stability

open access: yesAdvanced Science, 2022
Transparent conducting oxides (TCO) with high electrical conductivity and high visible light transparency are desired for a wide range of high‐impact engineering. Yet, usually, a compromise must be made between conductivity and transparency, limiting the
Xuqiang Liu   +14 more
doaj   +1 more source

Quantitative Estimates of Environmental Effects on the Star Formation Rate of Disk Galaxies in Clusters of Galaxies [PDF]

open access: yes, 1998
A simple model is constructed to evaluate the change of star formation rate of a disk galaxy due to environmental effects in clusters of galaxies. Three effects, (1) tidal force from the potential well of the cluster, (2) increase of external pressure ...
Evrard A. E.   +6 more
core   +2 more sources

Band gap closure, incommensurability and molecular dissociation of dense chlorine

open access: yesNature Communications, 2019
Molecular systems are predicted to transform into atomic solids and be metallic at high pressure; this was observed for the diatomic elements iodine and bromine. Here the authors access the higher pressures needed to observe the dissociation in chlorine,
Philip Dalladay-Simpson   +8 more
doaj   +1 more source

Formation of an Al‐Rich Niccolite‐Type Silica in Subducted Oceanic Crust: Implications for Water Transport to the Deep Lower Mantle

open access: yesGeophysical Research Letters, 2022
Subducted oceanic crust is enriched in free silica. Although being one of the silica polymorphs at lower‐mantle pressures, niccolite‐type phase (Nt‐phase) has not been documented in multicomponent metabasaltic or metasediment compositions relevant to ...
Lu Liu   +8 more
doaj   +1 more source

Author Correction: Band gap closure, incommensurability and molecular dissociation of dense chlorine

open access: yesNature Communications, 2019
The original version of this Article omitted references to previous experimental reports on solid hydrogen that are relevant for a full understanding of the context of the previous work. The added references are: 47. Akahama, Y. et al.
Philip Dalladay-Simpson   +8 more
doaj   +1 more source

Structural transitions of 4:1 methanol–ethanol mixture and silicone oil under high pressure

open access: yesMatter and Radiation at Extremes, 2021
A 4:1 (volume ratio) methanol–ethanol (ME) mixture and silicone oil are two of the most widely used liquid pressure-transmitting media (PTM) in high-pressure studies.
Xiehang Chen   +8 more
doaj   +1 more source

A Velostat-Based Pressure-Sensitive Mat for Center-of-Pressure Measurements: A Preliminary Study [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2021
Center-of-pressure (CoP) displacements play a key role in studies assessing postural stability. The accepted instrument to measure CoP trajectories is the force platform, but pressure-sensitive mats (PSMs) are an alternative composed of a matrix of sensitive cells. A typical cell comprises two electrodes with piezoresistive material in between, while a
Javier Martinez-Cesteros   +4 more
openaire   +4 more sources

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