Results 91 to 100 of about 244,404 (292)

Determination of the Exchange Current Density at Lithium │ Polymer Electrolyte Interfaces

open access: yesAdvanced Science, EarlyView.
This work presents a comprehensively validated method to determine the exchange current density (j0) at the interface of lithium metal and polymer electrolytes by combining electrochemical impedance spectroscopy with Bayesian inference and distribution of relaxation times analyses to successfully deconvolute solid electrolyte interphase and charge ...
Katrin Geng   +4 more
wiley   +1 more source

From Wallops Island to Project Mercury, 1945 - 1958: A memoir [PDF]

open access: yes
Research is described which was conducted at the Wallops Island Missile Range (operated by the old National Advisory Committee for Aeronautics).
Gilruth, R. R.
core   +1 more source

Gecko‐Inspired Adhesive for Robotic Grippers with Excellent Ultra‐Low‐Temperature Adhesion Performance

open access: yesAdvanced Science, EarlyView.
Phenyl and vinyl groups are used to modify conventional polydimethylsiloxane (PDMS) to yield poly(methylphenylvinylsiloxane) (PMPVS). PMPVS‐based gecko‐inspired arrays with mushroom tips exhibit superior adhesion strength of 36.7 kPa even at −80 °C, which enhances by 5143% compared to PDMS‐based arrays (0.7 kPa at −70 °C).
Jiabao Feng   +6 more
wiley   +1 more source

Pre‐Constructed Mechano‐Electrochemical Adaptive Solid Electrolyte Interphase to Enhance Li+ Diffusion Kinetics and Interface Stability for Chemically Prelithiated SiO Anodes

open access: yesAdvanced Science, EarlyView.
Silicon oxide (SiO) is emerging as the most advanced anode material. Herein, we propose a chemical prelithiation‐mediated strategy for SiO, which improves initial Coulombic efficiency (ICE) and pre‐constructs a mechano‐electrochemical adaptive solid electrolyte interphase (SEI). Notably, the mechano‐electrochemical adaptive SEI enriched with LiF, Li3N,
Zhan Wang   +10 more
wiley   +1 more source

Wave‐Partition‐Governed Dual‐Site Spallation in Single Crystals

open access: yesAdvanced Science, EarlyView.
Crystalline anisotropy shapes shock‐wave propagation and the resulting damage evolution in single crystals. Large‐scale molecular dynamics and damage modeling uncover a dual‐spallation mechanism driven by anisotropic elasticplastic wave separation, which mitigates damage accumulation.
Youlin Zhu   +6 more
wiley   +1 more source

Self‐Catalyzed Exothermic Binder Enables Ultrafast Processing and Migration‐Resistant Binder Networks for High‐Performance Lithium Battery Cathodes

open access: yesAngewandte Chemie, EarlyView.
A self‐catalyzed exothermic resin (ExoR) binder achieves ultrafast (3 min) and energy‐efficient (70% saving vs. polyvinylidene fluoride (PVDF)) fabrication of lithium‐ion battery cathodes. It suppresses binder migration and delivers near‐theoretical capacity in LiFePO4 (LFP) cathodes, with compatibility extending to other cathode materials.
Haining Zhang   +8 more
wiley   +2 more sources

Landsat-8 Sensor Characterization and Calibration

open access: yesRemote Sensing, 2015
Landsat-8 was launched on 11 February 2013 with two new Earth Imaging sensors to provide a continued data record with the previous Landsats. For Landsat-8, pushbroom technology was adopted, and the reflective bands and thermal bands were split into two ...
Brian Markham, James Storey, Ron Morfitt
doaj   +1 more source

A Multi‐Step Deposition Strategy for β‐SiC Coatings on Cf/C Composites: Achieving Breakthrough Oxidation Resistance and Mechanical Properties

open access: yesAdvanced Science, EarlyView.
A new multi‐step β‐SiC deposition strategy for anti‐oxidation Cf/C composites successfully achieves dual‐performance breakthrough of anti‐oxidation property (≈700 h at 1500 °C)and mechanical property (bending strength of 215 MPa and adhesion strength of 9.4 MPa).
Dou Hu   +7 more
wiley   +1 more source

Enhancing space transportation: The NASA program to develop electric propulsion [PDF]

open access: yes
The NASA Office of Aeronautics, Exploration, and Technology (OAET) supports a research and technology (R and T) program in electric propulsion to provide the basis for increased performance and life of electric thruster systems which can have a major ...
Barnett, John W.   +3 more
core   +1 more source

Dimensionless scaling of heat-release-induced planar shock waves in near-critical CO2

open access: yes, 2017
We performed highly resolved one-dimensional fully compressible Navier-Stokes simulations of heat-release-induced compression waves in near-critical CO2. The computational setup, inspired by the experimental setup of Miura et al., Phys. Rev.
Ismail A. F.   +4 more
core   +1 more source

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