Results 41 to 50 of about 80,406 (296)

Microstructure-based modeling of elastic functionally graded materials: One dimensional case

open access: yes, 2008
Functionally graded materials (FGMs) are two-phase composites with continuously changing microstructure adapted to performance requirements. Traditionally, the overall behavior of FGMs has been determined using local averaging techniques or a given ...
Beran   +8 more
core   +1 more source

Free vibrations and static analysis of functionally graded sandwich plates with three-dimensional finite elements [PDF]

open access: yes, 2020
A three-dimensional modelling of free vibrations and static response of functionally graded material (FGM) sandwich plates is presented. Natural frequencies and associated mode shapes as well as displacements and stresses are determined by using the ...
Burlayenko, V. N., Sadowski, Tomasz
core  

A quasi-3D hyperbolic shear deformation theory for functionally graded plates [PDF]

open access: yes, 2013
A quasi-3D hyperbolic shear deformation theory for functionally graded plates is developed. The theory accounts for both shear deformation and thickness-stretching effects by a hyperbolic variation of all displacements across the thickness, and satisfies
Bui, Tinh   +3 more
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Characterization of functionally graded Al-SiCp metal matrix composites manufactured by centrifugal casting

open access: yesAlexandria Engineering Journal, 2017
The design of metal matrix composites can be enhanced by integrating the concept of functionally graded materials (FGM) to produce engineering materials with tailored contradictory properties that suit multifunctioning components.
I.M. El-Galy, M.H. Ahmed, B.I. Bassiouny
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Modeling and Evaluation of Vibrational Behavior in Functionally Graded Ceramic-Metal Composite Beams

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
Functionally Graded Materials (FGMs) represent a notable advancement in materials research as they enable the smooth incorporation of distinct characteristics from various materials.
Ziadoon Mohammed Rahi, Hayder H. Khaleel
doaj   +1 more source

Fabrication, Characterization and Modeling of Al2o3/Ni Functionally Graded Materials [PDF]

open access: yesEngineering and Technology Journal, 2014
Functionally graded materials (FGMs), with ceramic and metallic constituents, are frequently used for tremendous high temperature applications. In this paper, six sets of FGMs samples were designed and fabricated using powder technology technique.
Alaa Abdulhasan Atiyah
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

New Processing Route for the Production of Functionally Graded 7075 Al/SiCp Composites via a Combination of Semisolid Stirring and Sequential Squeeze Casting

open access: yesCrystals
Advanced processing techniques are required to produce functionally graded metal matrix composites due to the metallurgical conditions required during production.
Serhan Karaman Genc   +1 more
doaj   +1 more source

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