Results 61 to 70 of about 99,877 (298)

Expanding the members of ultra-high temperature ceramics and their maximum service temperature exceeding 3000 °C

open access: yesJournal of Advanced Ceramics
Aerodynamic heating, oxidation, ablation, and high dynamic pressure represent the extreme environments that aerospace vehicles must withstand during high-Mach atmospheric or trans-atmospheric flight. The temperature of critical components on the vehicles
Fei Li   +3 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Research on Electrical Contact Characteristics of Brush-Rail Device With Transient Large Current

open access: yesIEEE Access, 2023
An excellent electrical contact state is necessary to ensure safe and stable operation of the system. Therein, contact resistance and arc ablation are essential indexes for estimating the contact state. In view of the characteristics of brush-rail device
Yanhao Wu, Jin Xu, Junjie Zhu, Wei Xu
doaj   +1 more source

Differential response of skeletal muscles to mTORC1 signaling during atrophy and hypertrophy [PDF]

open access: yes, 2013
BACKGROUND: Skeletal muscle mass is determined by the balance between protein synthesis and degradation. Mammalian target of rapamycin complex 1 (mTORC1) is a master regulator of protein translation and has been implicated in the control of muscle mass ...
Handschin, Christoph   +23 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Preparation and Properties of Magnetically Responsive Graphene/Boron Nitride/Iron Oxide Filler Composite Epoxy Resin Materials

open access: yesNanomaterials
In this paper, magnetically responsive graphene/boron nitride/iron oxide fillers were prepared by growing iron oxide on the surface of graphene/boron nitride fillers via liquid-phase reaction.
Yiheng Yu   +4 more
doaj   +1 more source

Preparation and ablation performance of silica modified phenolic/carbon fiber composite

open access: yesCailiao gongcheng, 2023
Aimed at the problem of insufficient heat resistance and poor ablation resistance of phenolic resin (RF), and the compatibility of SiO2 particles with phenolic resin, the nano-scale SiO2/RF hybrid aerogel was prepared by the co-gel method.
PAN Xu   +5 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Effect of high temperature oxidation and particle erosion on the performance of C/C-SiC composites materials

open access: yesJournal of Aeronautical Materials, 2022
C/C-SiC composites was prepared by “chemical vapor infiltration + precursor impregnation pyrolysis” (CVI+PIP) combined process by needle preform laying separately with 3K twilled carbon cloth and 12K non-latitude cloth. The long-term oxidation resistance
WANG Lingling   +4 more
doaj   +1 more source

Improved Ablation Resistance of Silicone Rubber Composites by Introducing Montmorillonite and Silicon Carbide Whisker

open access: yes, 2016
Montmorillonite (MMT) was added to silicone rubber (SR) to improve the ablation resistance of the silicone. Following this, different quantities of silicon carbide whiskers (SiCw) were incorporated into the MMT/SR to yield a hybrid, ablative composite ...
Jing Dai   +4 more
core   +1 more source

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