Results 41 to 50 of about 1,432,157 (348)

Thermal Stability of Mg/TeO2 Priming Compositions

open access: yesMedžiagotyra, 2021
The insensitive ignitors with magnesium/tellurium dioxide (Mg/TeO2) priming composition installed on the spacecraft will experience a harsh thermal environment. Therefore, it is necessary to verify their availability at extreme temperatures. Differential
Xiang-run ZHAO   +5 more
doaj   +1 more source

Thermal Stability of Nanocrystalline Gradient Inconel 718 Alloy

open access: yesCrystals, 2021
Gradient structures containing nanograins in the surface layer have been introduced into Inconel 718 (IN718) nickel-based alloy using the surface mechanical grinding treatment technique. The thermal stability of the gradient IN718 alloy was investigated.
Jie Ding   +8 more
doaj   +1 more source

The Effect of Thermal Cycling Treatments on the Thermal Stability and Mechanical Properties of a Ti-Based Bulk Metallic Glass Composite

open access: yesMetals, 2016
The effect of thermal cycling treatments on the thermal stability and mechanical properties of a Ti48Zr20Nb12Cu5Be15 bulk metallic glass composite (BMGC) has been investigated.
Fan Bu   +5 more
doaj   +1 more source

Correlation Stability Problem in Selecting Temperature-Sensitive Points of CNC Machine Tools

open access: yesMachines, 2022
In the thermal-error compensation of CNC machine tools, temperature-sensitive points (TSPs) are used for predicting thermal error and need to have a high correlation with the thermal error.
Hui Liu   +4 more
doaj   +1 more source

Thermal Degradation of Blends of Polystyrene and poly(sodium 4-styrenesulfonate) and the copolymer, poly(styrene-co-sodium 4-styrenesulfonate) [PDF]

open access: yes, 1999
The thermal degradation of blends and copolymers of styrene with styrenesulfonic acid has been studied using thermogravimetric analysis, TGA/FTIR, and cone calorimetry.
Wilkie, Charles, Yao, Qiang
core   +1 more source

Investigating the thermal stability of 1-3 piezoelectric composite transducers by varying the thermal conductivity and glass transition temperature of the polymeric filler material [PDF]

open access: yes, 2002
The thermal behaviour of a number of 1-3 piezoelectric composite transducers is discussed. In particular, devices manufactured from a polymer filler with a relatively high glass to rubber transition temperature (T-g), and from polymer systems with ...
Benny, C.G.   +6 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Protein engineering of CMP kinases to improve thermal stability and resultant production of 3′-sialyllactose

open access: yesBiotechnology & Biotechnological Equipment, 2022
Protein engineering is an effective method to improve the thermal stability of biological macromolecules. Cytidine monophosphate kinase (CMK) is a key enzyme involved in nucleotide metabolism and participates in the production of cytidine triphosphate ...
Jingjing Wang   +5 more
doaj   +1 more source

NASA space materials research [PDF]

open access: yes, 1985
The effect of the space environment on: (1) thermal control coatings and thin polymer films; (2) radiation stability of 250 F and 350 F cured graphite/epoxy composites; and (3) the thermal mechanical stability of graphite/epoxy, graphite/glass composites
Sykes, G. F.   +2 more
core   +1 more source

Phase structures of the black D$p$-D$(p + 4)$-brane system in various ensembles II: electrical and thermodynamic stability [PDF]

open access: yes, 2015
By incorporating the electrical stability condition into the discussion, we continue the study on the thermodynamic phase structures of the D$p$-D$(p + 4)$ black brane in GG, GC, CG, CC ensembles defined in our previous paper arXiv:1502.00261.
Xiao, Zhiguang, Zhou, Da
core   +2 more sources

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