Results 61 to 70 of about 5,947,042 (303)

Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3

open access: yesAdvanced Functional Materials, EarlyView.
Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh   +3 more
wiley   +1 more source

Charge‐Tunable Coacervate Micelles for Separator Engineering in Lithium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A separator engineering strategy based on charge‐tunable complex coacervate core micelles (C3Ms) is presented to form an ion‐selective layer regulating polysulfide transport in Li–S batteries. The micelles enable uniform adsorption onto commercial polypropylene separators and infiltration throughout the internal pore network, suppressing polysulfide ...
Yongsheng Zhang   +11 more
wiley   +1 more source

Chemical Control of Space Charge Barriers and Grain Boundary Resistances in Polycrystalline Ionic Conductors

open access: yesAdvanced Functional Materials, EarlyView.
Grain boundaries (GBs) in polycrystalline materials often block charge transport and drive degradation. Using Gd‐doped CeO2 as a model electrolyte used in fuel/electrolysis cells, we developed a core‐shell infiltration method to selectively modify GB chemistry and space charge potential, achieving orders‐of‐magnitude ionic conductivity changes.
Z. Sha   +5 more
wiley   +1 more source

Ceramics Praises the Psalms.”The Holy Trinity” Church from Siret [PDF]

open access: yesAnastasis: Research in Medieval Culture and Art, 2015
”The Holy Trinity” (”Sfânta Treime”) church from Siret by tradition, should be the oldest monument in the form a clover of the religious architecture of Moldavia.
Mihaela Simionescu
doaj  

Data_Sheet_1_Measurement of Human Semicircular Canal Spatial Attitude.ZIP

open access: yes, 2021
Located deep in the temporal bone, the semicircular canal is a subtle structure that requires a spatial coordinate system for measurement and observation.
Yanyan Zheng (301716)   +5 more
core   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

La plaqueta grabada tardiglaciar de Cova Gran de Santa Linya (prepirineo de lleida, nordeste de iberia) [PDF]

open access: yesMunibe Antropologia-Arkeologia
En el nordeste de Iberia se identifica un limitado conjunto de representaciones de arte mueble atribuidas crono-culturalmente al final del Paleolítico.
Jorge Martínez-Moreno   +3 more
doaj   +1 more source

Data_Sheet_2_Measurement of Human Semicircular Canal Spatial Attitude.ZIP

open access: yes, 2021
Located deep in the temporal bone, the semicircular canal is a subtle structure that requires a spatial coordinate system for measurement and observation.
Yanyan Zheng (301716)   +5 more
core   +1 more source

Dual‐Layer Conducting and Redox Polymer Bioanodes for Synergistic Enhancement of Microbial Extracellular Electron Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid PEDOT/Fc‐LPEI conducting/redox polymer bioanode synergistically improves microbial extracellular electron transfer (EET) in Shewanella oneidensis MR‐1. The dual‐layer interface delivers 18‐fold higher current output and 27‐fold greater charge collected than bare carbon felt, highlighting an effective strategy for high‐performance ...
Shenghan Gu   +4 more
wiley   +1 more source

Analysis of the mechanism of fatigue crack arrest in a cylindrical notched specimen

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The phenomenon of fatigue crack arrest in surface-hardened cylindrical specimens with stress concentrators is examined from the perspective of linear fracture mechanics.
V. P. Sazanov
doaj   +1 more source

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