Results 21 to 30 of about 3,814,816 (395)

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

Geophysical 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, Jin Liu, Youjun Zhang, Xueyan Du, Hongliang Dong, Limin Yan, Junyue Wang, Lin Wang, Bin Chen   +8 more
doaj   +1 more source

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

International 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, Richard M. Dansereau, Adrian D. C. Chan, Anthony Remaud, Martin Bilodeau   +4 more
openaire   +1 more source

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

Advanced 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, Mingtao Li, Qian Zhang, Yiming Wang, Nana Li, Shang Peng, Tao Yin, Songhao Guo, Ye Liu, Limin Yan, Dongzhou Zhang, Jaeyong Kim, Gang Liu, Yandong Wang, Wenge Yang   +14 more
doaj   +1 more source

Improved ventricular function during inhalation of PGI(2) aerosol partly relies on enhanced myocardial contractility [PDF]

, 2005
Inhaled prostacyclin (PGI(2)) aerosol induces selective pulmonary vasodilation. Further, it improves right ventricular ( RV) function, which may largely rely on pulmonary vasodilation, but also on enhanced myocardial contractility.
B. Zwissler, Burghuber OC, C. Hofstetter, E. Thein, F. Meisner, G. Kemming, H. Kisch-Wedel, Hardy C, Hoegl S, Holt JP, Kass D, Kieler JN, Kisch-Wedel H, M. Flondor, Maughan WL, Metsa KT, Pavlovic M, Roberts AM, S. Bruhn, Task, van der Velde ET, van Heerden PV, W. Kreyling, Welte M, Zwissler B   +24 more
core   +1 more source

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

Geophysical 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, Hongsheng Yuan, Yao Yao, Ziqiang Yang, Federico Aiace Gorelli, Nico Giordano, Lixin He, Eiji Ohtani, Li Zhang   +8 more
doaj   +1 more source

Band gap closure, incommensurability and molecular dissociation of dense chlorine

Nature 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, Jack Binns, Miriam Peña-Alvarez, Mary-Ellen Donnelly, Eran Greenberg, Vitali Prakapenka, Xiao-Jia Chen, Eugene Gregoryanz, Ross T. Howie   +8 more
doaj   +1 more source

Cosmic censorship and spherical gravitational collapse with tangential pressure [PDF]

, 1997
We study the spherical gravitational collapse of a compact object under the approximation that the radial pressure is identically zero, and the tangential pressure is related to the density by a linear equation of state.
Bondi H, Cooperstock F I, Florides P S, Herrera L, Joshi P S, Joshi P S, Lemaître G, Louis Witten, Magli G, See, T P Singh   +10 more
core   +2 more sources

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

Nature 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, Jack Binns, Miriam Peña-Alvarez, Mary-Ellen Donnelly, Eran Greenberg, Vitali Prakapenka, Xiao-Jia Chen, Eugene Gregoryanz, Ross T. Howie   +8 more
doaj   +1 more source

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

Matter 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, Hongbo Lou, Zhidan Zeng, Benyuan Cheng, Xin Zhang, Ye Liu, Dazhe Xu, Ke Yang, Qiaoshi Zeng   +8 more
doaj   +1 more source

Development of a Novel Gait Analysis Tool Measuring Center of Pressure for Evaluation of Canine Chronic Thoracolumbar Spinal Cord Injury

Journal of Neurotrauma, 2019
Gait evaluation after spinal cord injury (SCI) is an important component of determining functional status. Analysis of center of pressure (COP) provides a dynamic reflection of global locomotion and postural control and has been used to quantify various ...
Melissa J Lewis, K. Williams, T. Langley, Leighanne Jarvis, G. Sawicki, N. Olby   +5 more
semanticscholar   +1 more source