Results 91 to 100 of about 6,087,560 (207)
, 2008 We present new observational results of NGC 7619, an elliptical galaxy with a prominent X-ray tail and a dominant member of the Pegasus group. With Chandra and XMM-Newton observations, we confirm the presence of a long X-ray tail in the SW direction ...
Awaki H. +12 more
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Age-related changes in human posture control: Motor coordination tests [PDF]
Postural responses to support surface displacements were measured in 214 normal human subjects ranging in age from 7 to 81 years. Motor tests measured leg muscle Electromyography (EMG) latencies, body sway, and the amplitude and timing of changes in ...
Black, F. O., Peterka, R. J.
core +1 more source
Nature CommunicationsSingle-component multi-emissive materials with stimuli-responsive properties offer unique advantages in the field of multicolor-tunable photoluminescence (PL).
Ting Zhang +8 more
doaj +1 more source
Low-Cost Experimental System for Center of Mass and Center of Pressure Measurement (June 2018)
IEEE Access, 2018 Falls happen when the center of mass of body is outside of its base of support and the recovery of the center of mass back to the base of support failed. Balance ability is an essential ability needed for humans' daily routine activities.
Cai Xia Yang
doaj +1 more source
SZE Observables, Pressure Profiles and Center Offsets in Magneticum Simulation Galaxy Clusters
, 2016 We present a detailed study of the galaxy cluster thermal \ac{sze} signal $Y$ and pressure profiles using {\it Magneticum} Pathfinder hydrodynamical simulations.
Dolag, Klaus. +4 more
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Pressure‐Enhanced Superconductivity and Structural Phase Transition in Layered Sn4P3
Small StructuresHigh pressure provides a unique tuning method depending on structure modulation to explore the structure–property relationship. Herein, the pressure‐induced structural phase transformation and enhanced superconductivity in a layered binary phosphide ...
Hao Ding +16 more
doaj +1 more source
An Inexpensive 6D Motion Tracking System for Posturography
Frontiers in Neurology, 2018 Computerized posturography is most often performed with a force plate measuring center-of-pressure (COP). COP is related to postural control actions but does not monitor the outcome of those actions, i.e., center-of-mass (COM) stability.
William V. C. Figtree +3 more
doaj +1 more source
High pressure, high temperature molecular doping of nanodiamond [PDF]
arXiv, 2018 The development of color centers in diamond as the basis for emerging quantum technologies has been limited by the need for ion implantation to create the appropriate defects. We present a versatile method to dope diamond without ion implantation, by synthesis of a doped amorphous carbon precursor and transformation at high temperatures and high ...
arxiv
The effect of staggering a biplane [PDF]
This investigation was carried out by request of the United States Air Service at the Massachusetts Institute of Technology wind tunnel in 1918. As the data collected may be of general interest, they are published here by the National Advisory Committee ...
Norton, F H
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MetalsThe aggregation and evolution of dislocations form different configurations, which are the preferred locations for fatigue crack initiation. To analyze the spatial distribution of the same dislocation configuration and the resulting configuration ...
Zhibin Xing +6 more
doaj +1 more source