Results 31 to 40 of about 198,573 (217)

Research and analysis on low-velocity impact of composite materials

Science and Engineering of Composite Materials, 2023
In this article, the concept of low-velocity impact resistance in composite materials is presented. Three existing expressions (e.g., bilinear, parabola, and exponential) that show the relationship between the dent depth and impact energy of composite ...
Qiu Ju
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

Self-healing epoxy composites: preparation, characterization and healing performance

Journal of Materials Research and Technology, 2015
Low velocity impact damage is common in fiber reinforced composites, which leads to micro-crack and interfacial debonding, where damage is microscopic and invisible.
Reaz A. Chowdhury, Mahesh V. Hosur, Md. Nuruddin, Alfred Tcherbi-Narteh, Ashok Kumar, Veera Boddu, Shaik Jeelani   +6 more
doaj   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Low-velocity Impact Response of a Nanocomposite Beam Using an Analytical Model

Latin American Journal of Solids and Structures
Low-velocity impact of a nanocomposite beam made of glass/epoxy reinforced with multi-wall carbon nanotubes and clay nanoparticles is investigated in this study.
Mahdi Heydari Meybodi, Saeed Saber-Samandari, Mojtaba Sadighi, Mohammad Reza Bagheri   +3 more
doaj   +1 more source

Assessment of Numerical Simulation Models for Impact Damage of Composite Materials

Hangkong gongcheng jinzhan, 2019
Fiber reinforced resin matrix composites(FRP) have been widely used in aerospace and other advanced structures. The study of low-speed impact damage of FRP is of important engineering application value.
Zhang Jiarui, Wu Fuqiang, Yao Weixing
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Effect of repair parameters on composite plates under low velocity impact

European Mechanical Science, 2022
In this study, the impact behavior of patch-repaired layered composite plates under low velocity impact loads was numerically investigated. For this purpose, layered composite plates with holes with different geometries in the middle were repaired with ...
Mete Onur Kaman, Mustafa Albayrak, Mustafa Gür   +2 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Study of the behavior of damaged low-velocity impact carbon/epoxy/AL2024-T3 hybrid laminates

Discover Materials
Aluminium and layered composite structures currently play a crucial role in the aviation sector. These structures may be susceptible to inadvertent impacts from several sources.
Fatima Zohra Daouache, Amin Houari, Mourad Lounis, Lecheb Samir, Salah Amroune, Kouider Madani, Barhm Mohamad, Mohamed Belhouari   +7 more
doaj   +1 more source