Results 141 to 150 of about 241,092 (307)

Regulating Solvent‐Separated Ion Pairs to Control Polysulfide Redox for Fast and Stable Room‐Temperature Na‐S Batteries

open access: yesAdvanced Science, EarlyView.
A local high‐concentration electrolyte with tailored solvent‐separated ion pairs is pioneered to design for room‐temperature sodium‐sulfur batteries. This electrolyte allows sparingly dissolved polysulfides and localizes them onto reactive interfaces for liquid‐solid conversion.
Xiang‐Long Huang   +11 more
wiley   +1 more source

Pristine MOF Materials for Separator Application in Lithium–Sulfur Battery

open access: yesAdvanced Science
Lithium–sulfur (Li–S) batteries have attracted significant attention in the realm of electronic energy storage and conversion owing to their remarkable theoretical energy density and cost‐effectiveness.
Zhibin Cheng   +5 more
doaj   +1 more source

Oxygen interaction with space-power materials [PDF]

open access: yes
Data from the space shuttle flights have established that many materials experience relatively rapid degradation when exposed to the low Earth orbit ambient atmosphere, which is predominately atomic oxygen.
Eck, T. G., Hoffman, R. W.
core   +1 more source

Beyond the Edge: Basal‐Plane Defects as the Dominant Catalytic Sites in Sulfur‐Doped Graphene

open access: yesAdvanced Science, EarlyView.
Identification of basal‐plane sites in sulfur‐doped graphene challenges the conventional edge‐focused catalytic picture. Sulfur dopants together with inevitable oxygen‐containing groups modulate local charge and spin distributions, enhancing lithium binding and activating ORR/NRR intermediates.
Xuanhao Yuan   +5 more
wiley   +1 more source

A Review on Catalytic Progress of Polysulfide Redox Reactions on Transition Metal Sulfides in Li‐S Batteries from Structural Perspective

open access: yesChemElectroChem
The commercialization of Li−S batteries is seriously hindered by polysulfides with severe shuttle effect, and the inherent insulating properties and slow reaction kinetics of insoluble Li2S products.
Haocheng Li   +7 more
doaj   +1 more source

Space shuttle SRM plume expansion sensitivity analysis [PDF]

open access: yes
The exhaust plumes of the space shuttle solid rocket motors can have a significant effect on the base pressure and base drag of the shuttle vehicle. A parametric analysis was conducted to assess the sensitivity of the initial plume expansion angle of ...
Penny, M. M.   +2 more
core   +1 more source

Promoter Hypermethylation‐Induced Silencing of FXYD1 Drives Breast Cancer Metastasis via DDX5‐Mediated Wnt/β‐Catenin Pathway Activation

open access: yesAdvanced Science, EarlyView.
This study identifies FXYD1 as an epigenetically silenced tumor suppressor in breast cancer. DNA methylation turns off the gene FXYD1 in breast cancer, and low levels predict worse outcomes. Restoring FXYD1 limits breast cancer cells proliferation and metastasis. In the nucleus, FXYD1 recruits the E3 ligase MAEA to K63‐ubiquitinate DDX5 for proteasomal
Ping Wen   +11 more
wiley   +1 more source

Self‐Nitriding Nanostructured Transition Metal Nitrides in Architected‐Carbon Matrices: Unveiling Mechanisms and Advancing Performance in Lithium‐Sulfur Pouch Cells

open access: yesAdvanced Science, EarlyView.
Imidazolium PIL nanoparticles, as an N‐rich template and morphology director, enable a colloidal self‐nitriding route to TMNs (VN, Mo2N) within controlled solid/hollow carbon architectures. As sulfur hosts/additives, TMNs accelerate Li–S redox kinetics and support high‐loading cathodes.
Yael Rodriguez Ayllon   +14 more
wiley   +1 more source

The effect of surface temperature and Reynolds number on the leeward heat-transfer for a shuttle orbiter [PDF]

open access: yes
The effect of windward surface temperature on the heat transfer to the leeward surface of the shuttle orbiter was investigated. Heat-transfer distributions, surface-pressure distributions, and schlieren photographs were obtained for an 0.01-scale model ...
Bertin, J. J.   +3 more
core   +1 more source

Pengaruh Permainan Shuttle Run Terhadap Kelincahan Anak Usia 4-5 Tahun [PDF]

open access: yes, 2015
Background: Agility is one of the components of motor freshness required for all activities demmand the speed of change in the position of the body and its parts. To stimulate the form of agility, children must be active. Children on 4-5 years old is the
, Dwi Kurniawati, SST.FT, M.Kes   +2 more
core  

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