Results 41 to 50 of about 4,690,273 (294)

Effect of Pre-oxidation on Coal Specific Surface Area and Pore Size Distribution

Meikuang Anquan, 2020
In order to explore the micro structure variation features of coal after pre-oxidation, the liquid nitrogen adsorption experiment was adopted to measure the specific surface area and pore structure of Liujia lignite, Sitai lignite, Tongxin bituminous ...
SUN Yong
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Synergy of ball-milling and pre-oxidation on microstructure and corrosion resistance of hot-dip zinc coating of nodular cast iron

Journal of Materials Research and Technology, 2022
In this study, nodular cast iron parts, grinding balls, and NaHCO3 powder were placed together in a ball milling cylinder to perform the coordinated pretreatment of ball-milling and pre-oxidation.
Zhiwei Li, Haoping Peng, Ya Liu, Xuping Su, Sibudjing Kawi, Jianhua Wang   +5 more
doaj   +1 more source

Mathematical modelling of the pre-oxidation of a uranium carbide fuel pellet [PDF]

Computers & Chemical Engineering, 2015
Uranium carbide is a candidate fuel for future nuclear reactors. However, for it to be implemented in a closed fuel cycle, an outline for its reprocessing is necessary. One proposed method is to oxidise the uranium carbide into uranium oxide which can then be reprocessed using current infrastructure.
James S. Shepherd, Michael Fairweather, Peter J. Heggs, Bruce C. Hanson   +3 more
openaire   +2 more sources

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Mechanical properties of laser-processed pre-oxidized Ma956 alloy and 3YSZ ceramic joints via reactive air brazing

Hanjie xuebao
In order to improve the mechanical properties of brazed joints between Ma956 alloy and 3YSZ ceramics, a composite treatment of laser processing and pre-oxidation was adopted to prepare a periodic groove structure covered with an Al2O3 layer on the ...
Chaonan NIU, Wenlong ZHOU, Yanyu SONG, Guolin LI, Haiping ZHOU, Shengpeng HU, Xiaoguo SONG   +6 more
doaj   +1 more source

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Research on exothermic and kinetic characteristics of low-temperature oxidation of preoxidized coal

Gong-kuang zidonghua, 2022
The existing research on the spontaneous combustion characteristics of oxidized coal is mostly based on the coal samples prepared under the conditions of lower oxidation temperature and air. It lacks the analysis of the kinetic characteristics during the
YAN Guofeng, HUANG Xingli, YAN Zhenguo
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

High strength mullite-bond SiC porous ceramics fabricated by digital light processing

Journal of Advanced Ceramics
Fabricating SiC ceramics via the digital light processing (DLP) technology is of great challenge due to strong light absorption and high refractive index of deep-colored SiC powders, which highly differ from those of resin, and thus significantly affect ...
Jian Sun, Jingde Zhang, Xu Zhang, Zihe Li, Jianzhang Li, Sijie Wei, Weibin Zhang, Weili Wang, Guifang Han   +8 more
doaj   +1 more source