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Structural and Functional Remodeling for Elite Cyclists During Exercise; Pressure Volume Loops and Hemodynamic Forces Analysis.
Am J Physiol Heart Circ Physiol
January 2025
Sport Medicine Unit, Careggi University Hospital, Via delle Oblate 4, 50134 Florence, Italy.
The study was designed to investigate the pattern of intraventricular Hemo-Dynamic Forces (HDF) and myocardial performance during exercise in Elite Cyclists (EC). Transthoracic stress echocardiography was performed on nineteen EC and thirteen age-matched sedentary controls (SC) at three incremental exercise intensities based on Heart Rate Reserve (HRR). Left Ventricular (LV) HDF were computed from echocardiography long-axis data sets using a novel technique based on endocardial boundary tracking, both in apex-base and latero-septal directions.
View Article and Find Full Text PDFA Ring-Shaped Lithium Metal Anode Enables High-Performance All-Solid-State Batteries Revealed by In Situ L-Band EPR Imaging.
J Phys Chem Lett
January 2025
Shanghai Key Laboratory of Magnetic Resonance, Institute of Magnetic Resonance and Molecular Imaging in Medicine, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, P. R. China.
In traditional operations of all-solid-state lithium metal batteries (ASSLMBs), a small thin lithium metal circular disk is employed as a lithium metal anode (LMA). However, ASSLMBs with a circular-disk LMA often fail in <150 cycles with low capacity retention. In this work, we developed a new ring-shaped LMA to improve cyclability.
View Article and Find Full Text PDFSynchronicity Between the Rates of Reaeration and Pollutants Degradation During Self-Purification in a Large River.
Bull Environ Contam Toxicol
January 2025
College of Environment and Ecology, Chongqing University, Chongqing, 400045, China.
The pollutants after were discharged into the water can gradually degrade through the self-purification. The oxygen consumption and pollutant degradation rates characterize the self-purification of small and medium-sized streams, while the dynamics of the two characteristics for large rivers has not been reported yet. The in-situ investigation for 297 sites in the 1700 km stream of the Yangtze River was conducted.
View Article and Find Full Text PDFHomochiral layered indium phosphonates: solvent modulation of morphology and chiral discrimination adsorption.
Dalton Trans
January 2025
State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
Assembling chiral coordination polymers into nano/microflower structures may improve their performance in applications such as chiral recognition and separation. In this study, we chose a chiral metal phosphonate system, , In(NO)/-, -pempH [pempH = (1-phenylethylamino)methylphosphonic acid], and carried out systematic work on the self-assembly of this system in different alcohol/HO mixed solvents under solvothermal conditions. Enantiomeric compounds -, -[In(pempH)(μ-OH)(HO)](NO) (R-, S-1) were obtained showing dense layered structures, but their morphologies varied with alcohol solvent.
View Article and Find Full Text PDFMixed-phase enabled high-rate copper niobate anodes for lithium-ion batteries.
J Mater Chem A Mater
January 2025
MESA+ Institute for Nanotechnology, University of Twente 7500 AE Enschede Netherlands
The advancement of rapid-response grid energy storage systems and the widespread adoption of electric vehicles are significantly hindered by the charging times and energy densities associated with current lithium-ion battery technology. In state-of-the-art lithium-ion batteries, graphite is employed as the standard negative electrode material. However, graphite suffers from polarization and deteriorating side-reactions at the high currents needed for fast charging.
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