Results 31 to 40 of about 96,375 (265)

Towards understanding the effect of temperature and humidity on the safety and performance of tracer pyrotechnic composition

FirePhysChem
The present work aims to study the effect of environmental hazards, namely, temperature and humidity, on the performance and sensitivity of tracer pyrotechnic composition.
Slimane Bekhouche, Djalal Trache, Amir Abdelaziz, Salim Chelouche, Ahmed Fouzi Tarchoun   +4 more
doaj   +1 more source

A promising high-energy-density material

Nature Communications, 2017
High energy density materials are of interest, but density is the limiting factor for many organic compounds. Here the authors show the formation of a high density energetic compound from a two-step reaction between commercially available compounds that ...
Wenquan Zhang, Jiaheng Zhang, Mucong Deng, Xiujuan Qi, Fude Nie, Qinghua Zhang   +5 more
doaj   +1 more source

Thermal decomposition behavior and kinetic study of nitrocellulose in presence of ternary nanothermites with different oxidizers

FirePhysChem, 2023
Nanothermites have recently attracted a great deal of interest in both military and civilian domains owing to their capability of igniting or exploding and releasing a significant quantity of heat via a redox reaction.
Slimane Bekhouche, Djalal Trache, Hamdane Akbi, Amir Abdelaziz, Ahmed Fouzi Tarchoun, Hassane Boudouh   +5 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Advancing nitrocellulose thermal stability through the incorporation of ion-exchanged ZSM-5 zeolite for enhanced performance

FirePhysChem
In this study, cellulose nitrate (NC), a highly energetic polymer, was supplemented with two distinct classes of stabilizing agents: the usual diphenylamine (DPA) and zeolite molecular sieves (ZSM-5) that were ion-exchanged with transition metal ions ...
Memdouh Chebbah, Ahmed Fouzi Tarchoun, Fouad Benaliouche, Amir Abdelaziz, Djalal Trache   +4 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Influence of moisture content on the thermal decomposition kinetics of smokeless gunpowders

FirePhysChem
The present work investigated the effect of moisture content on the thermal decomposition of two smokeless powders. First, the main ingredients of the studied gunpowder formulations were identified using gas chromatography-mass spectrometry (GC-MS) and ...
Fateh Chalghoum, Ahmed Fouzi Tarchoun, Amir Abdelaziz, Hani Boukeciat, Sabrina Hanafi, Meriem Wafa Saber, Salim Chelouche, Mokhtar Benziane, Djalal Trache   +8 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Elucidating the thermal decomposition mechanism of advanced energetic composites based on nitrated cellulose carbamate/ diethylene glycol dinitrate supplemented with organic stabilizers

Defence Technology
This study evaluates the stabilizing effect of lignin, extracted from Eucalyptus globulus, on an energetic composite of nitrated cellulose carbamate (NCC) plasticized with diethylene glycol dinitrate (DEGDN), compared to conventional stabilizers 2 ...
Lokmene Boumaza, Ahmed Fouzi Tarchoun, Djalal Trache, Amir Abdelaziz, Yacine Yahi, Nabil Slimani, Chemseddine Boustila, Thomas M. Klapötke   +7 more
doaj   +1 more source