Results 201 to 210 of about 810,721 (352)

Ultrasmall Hollow Covalent Triazine Framework Nanosphere/Aramid Nanofiber Composite Separator for High‐Energy Lithium Metal Batteries

open access: yesAdvanced Science, EarlyView.
In this work, composite separator using high‐strength and polar aramid nanofiber (ANF) is designed as scaffold and ultrasmall hollow covalent triazine framework (CTF) as coating material. This separator demonstrates outstanding performance in high‐rate, high‐voltage, and high‐temperature lithium metal batteries, along with pouch cells.
Yufei Yang   +11 more
wiley   +1 more source

Mechanical Force Storage and Reprogramming Hydrogel for Scarless Repair of Sports Joint Wounds

open access: yesAdvanced Science, EarlyView.
Inspired by the energy conversion of tendons, the “energy transit station” hydrogel is designed. The hydrogel not only shields stress concentration in sports injuries, but also reprograms energy forms to provide reasonable biomimetic contraction for wounds.
Jiakang Zhang   +10 more
wiley   +1 more source

"Toward True Health Care Reform: More Care, Less Insurance" [PDF]

open access: yes
The United States has the most expensive health care system in the world, yet its system produces inferior outcomes relative to those in other countries.
L. Randall Wray, Marshall Auerback
core  

Activation of the Pseudocapacitive Behavior of MXene/PANI for High‐Performance Ammonium‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
A Mo4/3CTz/PANI composite with in situ grown PANI nanosheets forming a wrinkled structure is developed to stabilize interlayer spacing and enhance charge transport. Proton addition via H2SO4 activates pseudocapacitive behavior in both components by modulating Mo valence and improving PANI conductivity.
Yeying Li   +8 more
wiley   +1 more source

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