Results 61 to 70 of about 10,556 (300)

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

open access: yesAdvanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen   +7 more
wiley   +1 more source

Crystal structure of 1,2-bis(6-bromo-3,4-dihydro-2H-benz[e][1,3]oxazin-3-yl)ethane: a bromine-containing bis-benzoxazine

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The title benzoxazine molecule, C18H18Br2N2O2, was prepared by a Mannich-type reaction of 4-bromophenol with ethane-1,2-diamine and formaldehyde. The title compound crystallizes in the monoclinic space group C2/c with a centre of inversion located at the
Augusto Rivera   +3 more
doaj   +1 more source

Occupational allergic contact dermatitis in a basket player due to phenolic resins

open access: yes, 2021
A case of allergic contact dermatitis due to phenolic resins is ...
Borghi A.   +5 more
core   +1 more source

Redox‐Dependent Chaperoning of GBF1 Condensates Regulates Seed Germination in Arabidopsis

open access: yesAdvanced Science, EarlyView.
In dormant seeds (low ROS), GBF1 forms liquid condensates to repress the germination gene CathB3, and the chaperone GIP1 maintains condensate liquidity and repressive activity. Upon imbibition (high ROS), ROS oxidize GIP1 during germination, impairing its chaperone function.
Yunying Wang, Xiaofeng Fang
wiley   +1 more source

Mussel‐Inspired and Recyclable Cardanol‐Based Supramolecular Networks for Multifunctional and Sustainable Resins

open access: yesEcoMat
Dynamic covalent epoxy resins integrate the merits of thermoplastics and thermosets, enabling reprocessability while maintaining covalent crosslinking. However, achieving simultaneous shape memory, intrinsic flame retardancy, and antibacterial properties
Yun Hu   +6 more
doaj   +1 more source

C—I...N short contacts as tools for the construction of the crystal packing in the crystal structure of 3,3′-(ethane-1,2-diyl)bis(6-iodo-3,4-dihydro-2H-1,3-benzoxazine)

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
The asymmetric unit of the title compound, C18H18I2N2O2, consists of one half-molecule, completed by the application of inversion symmetry. The molecule adopts the typical structure for this class of bis-benxozazines, characterized by an anti orientation
Augusto Rivera   +3 more
doaj   +1 more source

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

open access: yesAdvanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi   +13 more
wiley   +1 more source

Crystal structure of 2,2′-(ethane-1,2-diyl)bis(2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazine): a prospective raw material for polybenzoxazines

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C26H24N2O2, the oxazine moiety is fused to a naphthalene ring system. The asymmetric unit consists of one half of the molecule, which lies about an inversion centre.
Augusto Rivera   +3 more
doaj   +1 more source

Resinification of Alkali-Catalyzed Liquefied Phenolated Wood and its Characterization as the Novolak-Type Phenolic Resins

open access: yes, 1997
The reaction of wood meal with phenol resulted large amounts of non-reacted phenol, which further allowed reaction with formaldehyde. The effects of various reaction parameters for the preparation of wood-based phenolic resins on their properties have ...
D. Maldas, N. Shiraishi
core   +1 more source

Synthesis of Silicon Hybrid Phenolic Resins with High Si-Content and Nanoscale Phase Separation Structure

open access: yes, 2020
In this paper, a set of silicon hybrid phenolic resins (SPF) with high Si-content were prepared by mixing phenolic resins with self-synthesized silicon resins.
Zhenhua Luo   +7 more
core   +1 more source

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